AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-04 02:40:06 +00:00
Code Issues Packages Projects Releases Wiki Activity
38,053 Commits 334 Branches 1,646 Tags 278 MiB
d150181d73
Commit Graph

548 Commits

Author SHA1 Message Date
Adhemerval Zanella
4c8cb283ec nptl: Remove pwrite from libpthread 
The libc version is identical and built with same flags, it is also
uses as the default version.

Checked on x86_64-linux-gnu.
 2021-03-26 13:37:18 -03:00
Adhemerval Zanella
dd795c6c24 nptl: Remove pread from libpthread 
The libc version is identical and built with same flags, it is also
uses as the default version.

Checked on x86_64-linux-gnu.
 2021-03-26 13:37:18 -03:00
Adhemerval Zanella
40873cdd38 nptl: Remove open from libpthread 
The libc version is identical and built with same flags.  The libc
version is set as the default version.

Checked on x86_64-linux-gnu.
 2021-03-26 13:37:14 -03:00
Adhemerval Zanella
c5c3588475 nptl: Remove lseek from libpthread 
The libc version is identical and built with same flags.  The libc
version is set as the default version.

The libpthread compat symbol requires to mask it when building the
loader object otherwise ld might complain about a missing
versioned symbol (as for alpha).

Checked on x86_64-linux-gnu.
 2021-03-26 13:36:17 -03:00
Adhemerval Zanella
78d1724d53 nptl: Remove send from libpthread 
The libc version is identical and built with same flags.  Both aarch64
and nios2 also requires to export __send and tt was done previously with
the HAVE_INTERNAL_SEND_SYMBOL (which forced the symbol creation).

All __send callers are internal to libc and the original issue that
required the symbol export was due a missing libc_hidden_def.  So
a compat symbol is added for __send and the libc_hidden_def is
defined regardless.

Checked on x86_64-linux-gnu and i686-linux-gnu.
 2021-03-26 13:36:17 -03:00
Adhemerval Zanella
d5ddd583da nptl: Move system to libc 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
9cf242997d nptl: Move fcntl from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
729cb5a2a7 nptl: Remove sendmsg from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
0cf67de816 nptl: Remove recvmsg from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
2d6f4ebd65 nptl: Remove sigwait from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
1e157b9cb4 nptl: Remove tcdrain from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
c29386fd50 nptl: Remove pause from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
0c9d4925fe nptl: Remove msync from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
fc495dc4e9 nptl: Remove fsync from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
6f2e00cac5 nptl: Remove sendto from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
643a88a9c1 nptl: Remove recvfrom from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
494c3beec9 nptl: Remove recv from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
3ddf9bc185 nptl: Remove connect from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:39 -03:00
Adhemerval Zanella
c59f716993 nptl: Remove accept from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:38 -03:00
Adhemerval Zanella
bdfed2e2cd nptl: Remove close from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 15:54:24 -03:00
Adhemerval Zanella
baab50cfb9 nptl: Remove read from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 08:21:29 -03:00
Adhemerval Zanella
173e0ab081 nptl: Remove write from libpthread 
The libc version is identical and built with same flags.

Checked on x86_64-linux-gnu.
 2021-03-18 08:20:43 -03:00
Adhemerval Zanella
7384193b71 nptl: Move fork into libc 
This is part of the libpthread removal project:

   <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Checked on x86_64-linux-gnu.
 2021-03-12 10:19:58 -03:00
Florian Weimer
035c012e32 Reduce the statically linked startup code [BZ #23323] 
It turns out the startup code in csu/elf-init.c has a perfect pair of
ROP gadgets (see Marco-Gisbert and Ripoll-Ripoll, "return-to-csu: A
New Method to Bypass 64-bit Linux ASLR").  These functions are not
needed in dynamically-linked binaries because DT_INIT/DT_INIT_ARRAY
are already processed by the dynamic linker.  However, the dynamic
linker skipped the main program for some reason.  For maximum
backwards compatibility, this is not changed, and instead, the main
map is consulted from __libc_start_main if the init function argument
is a NULL pointer.

For statically linked binaries, the old approach based on linker
symbols is still used because there is nothing else available.

A new symbol version __libc_start_main@@GLIBC_2.34 is introduced because
new binaries running on an old libc would not run their ELF
constructors, leading to difficult-to-debug issues.
 2021-02-25 12:13:02 +01:00
Joseph Myers
83908b3a1e Update syscall lists for Linux 5.11. 
Linux 5.11 has one new syscall, epoll_pwait2.  Update
syscall-names.list and regenerate the arch-syscall.h headers with
build-many-glibcs.py update-syscalls.

Tested with build-many-glibcs.py.
 2021-02-19 21:16:27 +00:00
Adhemerval Zanella
36260d5035 linux: Set default kernel_stat.h to LFS 
The XSTAT_IS_XSTAT64 and STAT_IS_KERNEL_STAT flags are now set to 1 and
STATFS_IS_STATFS64 is set to __STATFS_MATCHES_STATFS64.  This makes the
default ABI for newer ports to provide only LFS calls.

A copy of non-LFS support is provided to 32-bit ABIS with non-LFS
support (arm, csky, i386, m68k, nios2, s390, and sh).  Is also allows
to remove the 64-bit ports, which already uses the default values.

This patch does not change the code generation.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2021-02-11 07:58:05 -03:00
Adhemerval Zanella
4b221ec9ee linux: Fix STATFS_IS_STATFS64 definition 
aarch64, arc, ia64, mips64, powerpc64, riscv32, riscv64, s390x, sparc64,
and x86_64 defines STATFS_IS_STATFS64 to 0, but all of them alias
statfs to statfs64 and the struct statfs has the same and layout of
struct statfs64.

The correct definition will be used on the [f]statfs[64] consolidation.

This patch does not change code generation since the symbols are
implemented using the auto-generation syscall for all the aforementioned
ABIs.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2021-02-11 07:57:57 -03:00
Paul Eggert
2b778ceb40 Update copyright dates with scripts/update-copyrights 
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
 2021-01-02 12:17:34 -08:00
Joseph Myers
bcf47eb0fb Update syscall lists for Linux 5.10. 
Linux 5.10 has one new syscall, process_madvise.  Update
syscall-names.list and regenerate the arch-syscall.h headers with
build-many-glibcs.py update-syscalls.

Tested with build-many-glibcs.py.
 2020-12-16 02:08:52 +00:00
Adhemerval Zanella
720480934a linux: Consolidate brk implementation 
It removes all the arch-specific assembly implementation.  The
outliers are alpha, where its kernel ABI explict return -ENOMEM
in case of failure; and i686, where it can't use
"call *%gs:SYSINFO_OFFSET" during statup in static PIE.

Also some ABIs exports an additional ___brk_addr symbol and to
handle it an internal HAVE_INTERNAL_BRK_ADDR_SYMBOL is added.

Checked on x86_64-linux-gnu, i686-linux-gnu, adn with builsd for
the affected ABIs.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
 2020-12-10 17:42:37 -03:00
Joseph Myers
dac8713629 Update syscall lists for Linux 5.9. 
Linux 5.9 has one new syscall, close_range.  Update syscall-names.list
and regenerate the arch-syscall.h headers with build-many-glibcs.py
update-syscalls.

Tested with build-many-glibcs.py.
 2020-10-23 16:31:11 +00:00
Adhemerval Zanella
589260cef8 Remove mknod wrapper functions, move them to symbols 
This patch removes the mknod and mknodat static wrapper and add the
symbols on the libc with the expected names.

Both the prototypes of the internal symbol linked by the static
wrappers and the inline redirectors are also removed from the installed
sys/stat.h header file.  The wrapper implementation license LGPL
exception is also removed since it is no longer statically linked to
binaries.

Internally the _STAT_VER* definitions are moved to the arch-specific
xstatver.h file.

Checked with a build for all affected ABIs. I also checked on x86_64,
i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
 2020-10-09 17:02:06 -03:00
Adhemerval Zanella
8ed005daf0 Remove stat wrapper functions, move them to exported symbols 
This patch removes the stat, stat64, lstat, lstat64, fstat, fstat64,
fstatat, and fstatat64 static wrapper and add the symbol on the libc
with the expected names.

Both the prototypes of the internal symbol linked by the static
wrappers and the inline redirectors are also removed from the installed
sys/stat.h header file.  The wrapper implementation license LGPL
exception is also removed since it is no longer statically linked to
binaries.

Internally the _STAT_VER* definitions are moved to a arch-specific
xstatver.h file.  The internal defines that redirects internals
{f}stat{at} to their {f}xstat{at} counterparts are removed for Linux
(!NO_RTLD_HIDDEN).  Hurd still requires them since {f}stat{at} pulls
extra objects that makes the loader build fail otherwise (I haven't
dig into why exactly).

Checked with a build for all affected ABIs. I also checked on x86_64,
i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
 2020-10-09 17:02:06 -03:00
DJ Delorie
cdf645427d Update mallinfo2 ABI, and test 
This patch adds the ABI-related bits to reflect the new mallinfo2
function, and adds a test case to verify basic functionality.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-09-17 18:49:30 -04:00
Adhemerval Zanella
0b1c222cd0 linux: Define STAT64_IS_KERNEL_STAT64 
It indicates that the glibc export stat64 is similar in size and
layout of the kernel stat64 used on the syscall.  It is not currently
used on stat implementation, but the idea is to indicate whether
to use the kernel_stat to issue on the syscall on the *stat*64
variant (more specifically on mips which its exported ABI does not
match the kernel).

Reviewed-by: Lukasz Majewski <lukma@denx.de>
 2020-09-11 14:35:11 -03:00
Joseph Myers
1cfb471528 Update syscall lists for Linux 5.8. 
Linux 5.8 has one new syscall, faccessat2.  Update syscall-names.list
and regenerate the arch-syscall.h headers with build-many-glibcs.py
update-syscalls.

Tested with build-many-glibcs.py.
 2020-08-07 14:38:43 +00:00
Florian Weimer
efedd1ed3d Linux: Remove rseq support 
The kernel ABI is not finalized, and there are now various proposals
to change the size of struct rseq, which would make the glibc ABI
dependent on the version of the kernels used for building glibc.
This is of course not acceptable.

This reverts commit 48699da1c4 ("elf:
Support at least 32-byte alignment in static dlopen"), commit
8f4632deb3 ("Linux: rseq registration
tests"), commit 6e29cb3f61 ("Linux: Use
rseq in sched_getcpu if available"), and commit
0c76fc3c2b ("Linux: Perform rseq
registration at C startup and thread creation"), resolving the conflicts
introduced by the ARC port and the TLS static surplus changes.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2020-07-16 17:55:35 +02:00
Adhemerval Zanella
325081b9eb string: Add strerrorname_np and strerrordesc_np 
The strerrorname_np returns error number name (e.g. "EINVAL" for EINVAL)
while strerrordesc_np returns string describing error number (e.g
"Invalid argument" for EINVAL).  Different than strerror,
strerrordesc_np does not attempt to translate the return description,
both functions return NULL for an invalid error number.

They should be used instead of sys_errlist and sys_nerr, both are
thread and async-signal safe.  These functions are GNU extensions.

Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
and s390x-linux-gnu.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2020-07-07 15:02:57 -03:00
Adhemerval Zanella
bfe05aa289 string: Add sigabbrev_np and sigdescr_np 
The sigabbrev_np returns the abbreviated signal name (e.g. "HUP" for
SIGHUP) while sigdescr_np returns the string describing the error
number (e.g "Hangup" for SIGHUP).  Different than strsignal,
sigdescr_np does not attempt to translate the return description and
both functions return NULL for an invalid signal number.

They should be used instead of sys_siglist or sys_sigabbrev and they
are both thread and async-signal safe.  They are added as GNU
extensions on string.h header (same as strsignal).

Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
and s390x-linux-gnu.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2020-07-07 14:57:14 -03:00
Florian Weimer
706ad1e7af Add the __libc_single_threaded variable 
The variable is placed in libc.so, and it can be true only in
an outer libc, not libcs loaded via dlmopen or static dlopen.
Since thread creation from inner namespaces does not work,
pthread_create can update __libc_single_threaded directly.

Using __libc_early_init and its initial flag, implementation of this
variable is very straightforward.  A future version may reset the flag
during fork (but not in an inner namespace), or after joining all
threads except one.

Reviewed-by: DJ Delorie <dj@redhat.com>
 2020-07-06 11:15:58 +02:00
Mathieu Desnoyers
0c76fc3c2b Linux: Perform rseq registration at C startup and thread creation 
Register rseq TLS for each thread (including main), and unregister for
each thread (excluding main).  "rseq" stands for Restartable Sequences.

See the rseq(2) man page proposed here:
  https://lkml.org/lkml/2018/9/19/647

Those are based on glibc master branch commit 3ee1e0ec5c.
The rseq system call was merged into Linux 4.18.

The TLS_STATIC_SURPLUS define is increased to leave additional room for
dlopen'd initial-exec TLS, which keeps elf/tst-auditmany working.

The increase (76 bytes) is larger than 32 bytes because it has not been
increased in quite a while.  The cost in terms of additional TLS storage
is quite significant, but it will also obscure some initial-exec-related
dlopen failures.
 2020-07-06 10:21:16 +02:00
Adhemerval Zanella
be668a8d78 New exp10f version without SVID compat wrapper 
This patch changes the exp10f error handling semantics to only set
errno according to POSIX rules.  New symbol version is introduced at
GLIBC_2.32.  The old wrappers are kept for compat symbols.

There are some outliers that need special handling:

  - ia64 provides an optimized implementation of exp10f that uses ia64
    specific routines to set SVID compatibility.  The new symbol version
    is aliased to the exp10f one.

  - m68k also provides an optimized implementation, and the new version
    uses it instead of the sysdeps/ieee754/flt32 one.

  - riscv and csky uses the generic template implementation that
    does not provide SVID support.  For both cases a new exp10f
    version is not added, but rather the symbols version of the
    generic sysdeps/ieee754/flt32 is adjusted instead.

Checked on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu,
powerpc64le-linux-gnu.
 2020-06-19 12:08:47 -03:00
Florian Weimer
ec41af45a6 nptl: Add pthread_attr_setsigmask_np, pthread_attr_getsigmask_np 
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
 2020-06-02 11:59:18 +02:00
Florian Weimer
07a73d5219 nptl: Move pthread_gettattr_np into libc 
This is part of the libpthread removal project:

    <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Use __getline instead of __getdelim to avoid a localplt failure.
Likewise for __getrlimit/getrlimit.

The abilist updates were performed by:

git ls-files 'sysdeps/unix/sysv/linux/**/libc.abilist' \
  | while read x ; do
    echo "GLIBC_2.32 pthread_getattr_np F" >> $x
done
python3 scripts/move-symbol-to-libc.py --only-linux pthread_getattr_np

The private export of __pthread_getaffinity_np is no longer needed, but
the hidden alias still necessary so that the symbol can be exported with
versioned_symbol.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
 2020-05-20 20:27:49 +02:00
Florian Weimer
52302bc298 nptl: Move pthread_getaffinity_np into libc 
This is part of the libpthread removal project:

    <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

The abilist updates were performed by:

git ls-files 'sysdeps/unix/sysv/linux/**/libc.abilist' \
  | while read x ; do
    echo "GLIBC_2.32 pthread_getaffinity_np F" >> $x
done
python3 scripts/move-symbol-to-libc.py pthread_getaffinity_np

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
 2020-05-20 20:23:20 +02:00
Florian Weimer
1979819d68 nptl: Move pthread_attr_setaffinity_np into libc 
This is part of the libpthread removal project:

    <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

The symbol did not previously exist in libc, so a new GLIBC_2.32
symbol is needed, to get correct dependency for binaries which
use the symbol but no longer link against libpthread.

The abilist updates were performed by:

git ls-files 'sysdeps/unix/sysv/linux/**/libc.abilist' \
  | while read x ; do
    echo "GLIBC_2.32 pthread_attr_setaffinity_np F" >> $x
done
python3 scripts/move-symbol-to-libc.py pthread_attr_setaffinity_np

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
 2020-05-20 20:22:59 +02:00
Adhemerval Zanella
c6663fee43 nptl: Move pthread_sigmask implementation to libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

A new symbol version is added on libc to force loading failure
instead of lazy binding one for newly binaries with old loaders.

Checked with a build against all affected ABIs.
 2020-04-21 14:01:58 -03:00
Joseph Myers
e788beaf09 Update syscall lists for Linux 5.6. 
Linux 5.6 has new openat2 and pidfd_getfd syscalls.  This patch adds
them to syscall-names.list and regenerates the arch-syscall.h files.

Tested with build-many-glibcs.py.
 2020-04-03 18:07:55 +00:00
Florian Weimer
71691aae92 Linux: Clean up pread64/pwrite64 system call names 
Linux removed the last definitions of __NR_pread and __NR_pwrite
in commit 4ba66a9760722ccbb691b8f7116cad2f791cca7b, the removal
of the blackfin port.  All architectures now define __NR_pread64 and
__NR_pwrite64 only.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-03-03 12:14:40 +01:00
Florian Weimer
f2323817dd nptl: Move pthread_setschedparam implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
d5074b30fe nptl: Move pthread_getschedparam implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
ad96df2cd9 nptl: Move pthread_cond_init implementation into libc 
It is necessary to export __pthread_cond_init from libc because
the C11 condition variable needs it and is still left in libpthread.

This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
dc6cfdc934 nptl: Move pthread_cond_destroy implementation into libc 
It is necessary to export __pthread_cond_destroy from libc because
the C11 condition variable needs it and is still left in libpthread.

This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
7da5c345a5 nptl: Move pthread_condattr_init implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
249afce2e7 nptl: Move pthread_condattr_destroy implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
dc260acd38 nptl: Move pthread_attr_setscope implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
ed0a69b675 nptl: Move pthread_attr_getscope implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
f0929a227b nptl: Move pthread_attr_setschedpolicy implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
ce197a6e0a nptl: Move pthread_attr_getschedpolicy implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2020-02-20 08:57:01 +01:00
Florian Weimer
3a0ecccb59 ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486] 
Exporting functions and relying on symbol interposition from libc.so
makes the choice of implementation dependent on DT_NEEDED order, which
is not what some compiler drivers expect.

This commit replaces one magic mechanism (symbol interposition) with
another one (preprocessor-/compiler-based redirection).  This makes
the hand-over from the minimal malloc to the full malloc more
explicit.

Removing the ABI symbols is backwards-compatible because libc.so is
always in scope, and the dynamic loader will find the malloc-related
symbols there since commit f0b2132b35
("ld.so: Support moving versioned symbols between sonames
[BZ #24741]").

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2020-02-15 11:01:23 +01:00
Adhemerval Zanella
bc2eb9321e linux: Remove INTERNAL_SYSCALL_DECL 
With all Linux ABIs using the expected Linux kABI to indicate
syscalls errors, the INTERNAL_SYSCALL_DECL is an empty declaration
on all ports.

This patch removes the 'err' argument on INTERNAL_SYSCALL* macro
and remove the INTERNAL_SYSCALL_DECL usage.

Checked with a build against all affected ABIs.
 2020-02-14 21:12:45 -03:00
Adhemerval Zanella
fcb78a5505 linux: Consolidate INLINE_SYSCALL 
With all Linux ABIs using the expected Linux kABI to indicate
syscalls errors, there is no need to replicate the INLINE_SYSCALL.

The generic Linux sysdep.h includes errno.h even for !__ASSEMBLER__,
which is ok now and it allows cleanup some archaic code that assume
otherwise.

Checked with a build against all affected ABIs.
 2020-02-14 21:09:12 -03:00
Adhemerval Zanella
9a973da617 s390: Consolidate Linux syscall definition 
The {INTERNAL,INLINE}_SYSCALL are defined only on s390 sysdep.h.

Checked on s390x-linux-gnu and s390-linux-gnu.
 2020-02-14 21:09:12 -03:00
Florian Weimer
4cf0d22305 Linux: Add tables with system call numbers 
The new tables are currently only used for consistency checks
with the installed kernel headers and the architecture-independent
system call names table.  They are based on Linux 5.4.

The goal is to use these architecture-specific tables to ensure
that system call wrappers are available irrespective of the version
of the installed kernel headers.

The tables are formatted in the form of C header files so that they
can be used directly in an #include directive, without external
preprocessing.  (External preprocessing of a plain table file
would introduce cross-subdirectory dependency issues.)  However,
the intent is that they can still be treated as tables and can be
processed by simple tools.

The irregular system call names on 32-bit arm add a complication.
The <fixup-asm-unistd.h> header is introduced to work around that,
and the system calls are listed under regular names in the
<arch-syscall.h> file.

A make target, update-syscalls-list, is added to patch the glibc
sources with data from the current kernel headers.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
 2020-01-02 10:18:10 +01:00
Joseph Myers
d614a75396 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Adhemerval Zanella
dc86199477 linux: Consolidate sigprocmask 
All architectures now uses the Linux generic implementation which
uses __NR_rt_sigprocmask.

Checked on x86_64-linux-gnu, sparc64-linux-gnu, ia64-linux-gnu,
s390x-linux-gnu, and alpha-linux-gnu.
 2019-12-27 11:18:23 -03:00
Adhemerval Zanella
b633cdff2c nptl: Move waitpid implementation to libc 
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.
 2019-12-19 16:11:09 -03:00
Adhemerval Zanella
c97f9a5979 nptl: Move wait implementation to libc 
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.
 2019-12-19 16:11:09 -03:00
Adhemerval Zanella
0487ebed22 nptl: Add more missing placeholder abi symbol from nanosleep move 
This patch adds the missing __libpthread_version_placeholder for
GLIBC_2.2.6 version from the nanosleep implementation move from
libpthread to libc (79a547b162).

It also fixes the wrong compat symbol definitions added by changing
back the version used on vfork check and remove the
__libpthread_version_placeholder added on some ABI (4f4bb489e0).

The __libpthread_version_placeholder is also refactored to make it
simpler to add new compat_symbols by adding a new macro
compat_symbol_unique which uses the compiler extension __COUNTER__
to generate unique strong alias to be used with compat_symbol.

Checked with a updated-abi on the all affected abis of the nanosleep
move.

Change-Id: I347a4dbdc931bb42b359456932dd1e17aa4d4078
 2019-12-09 15:04:56 -03:00
Adhemerval Zanella
4f4bb489e0 nptl: Add missing placeholder abi symbol from nanosleep move 
Adds the __libpthread_version_placeholder symbol with the same version
of nanosleep/__nanosleep that was removed by 79a547b162 and that
is not provided by other symbols.
 2019-11-07 16:46:06 +00:00
Adhemerval Zanella
79a547b162 nptl: Move nanosleep implementation to libc 
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.  I also checked
the libpthread.so .gnu.version_d entries for every ABI affected and
all of them contains the required versions (including for architectures
which exports __nanosleep with a different version).

Reviewed-by: Florian Weimer <fweimer@redhat.com>
 2019-11-06 14:36:07 -03:00
Mike Crowe
69ca4b54c1 nptl: Add pthread_clockjoin_np 
Introduce pthread_clockjoin_np as a version of pthread_timedjoin_np that
accepts a clockid_t parameter to indicate which clock the timeout should be
measured against. This mirrors the recently-added POSIX-proposed "clock"
wait functions.

Checked on x86_64-linux-gnu.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-11-01 11:23:43 -03:00
Stefan Liebler
76aaa13d5d S390: Remove not needed stack frame in syscall function. 
As an svc invocation does not clobber any user space registers
despite of the return value r2 and it does not need a special
stack frame. This patch gets rid of the extra frame.
We just have to save and restore r6 and r7 as those are
preserved across function calls.
 2019-10-23 14:51:53 +02:00
Florian Weimer
ca602c1536 nptl: Move pthread_attr_setschedparam implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-10-07 20:00:38 +02:00
Florian Weimer
0caab6638e nptl: Move pthread_attr_getschedparam implementation into libc 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-10-07 15:49:48 +02:00
Florian Weimer
eaad14b56a nptl: Move pthread_attr_setinheritsched implementation into libc. 
This is part of the libpthread removal project:

  <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>
 2019-10-04 17:38:06 +02:00
Adhemerval Zanella
b8386c2859 Remove PREPARE_VERSION and PREPARE_VERSION_KNOW 
This patch removes the PREPARE_VERSION and PREPARE_VERSION_KNOW macro
and uses a static inline function instead, get_vdso_symbol.  Each
architecture that supports vDSO must define the Linux version and its
hash for symbol resolution (VDSO_NAME and VDSO_HASH macro respectively).

It also organizes the HAVE_*_VSYSCALL for mips, powerpc, and s390 to
define them on a common header.

The idea is to require less code to configure and enable vDSO support
for newer ports.  No semantic changes are expected.

Checked with a build against all affected architectures.

	* sysdeps/unix/make-syscalls.sh: Make vDSO call use get_vdso_symbol.
	* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (__gettimeofday):
	Use get_vdso_symbol instead of _dl_vdso_vsym.
	* sysdeps/unix/sysv/linux/powerpc/time.c (time): Likewise.
	* sysdeps/unix/sysv/linux/riscv/flush-icache.c
	(__lookup_riscv_flush_icache): Likewise.
	* sysdeps/unix/sysv/linux/x86/gettimeofday.c (__gettimeofday):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/time.c (time): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/gettimeofday.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (VDSO_NAME, VDSO_HASH):
	Define.
	* sysdeps/unix/sysv/linux/arm/sysdep.h (VDSO_NAME, VDSO_HASH):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h (VDSO_NAME, VDSO_HASH):
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/sysdep.h (VDSO_NAME, VDSO_HASH):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep.h (VDSO_NAME, VDSO_HASH):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (VDSO_NAME, VDSO_HASH):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
	(HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Remove
	definition.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
	(HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
	(HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
	(HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
	(HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL,
	HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL,
	HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/dl-vdso.h (PREPARE_VERSION,
	PREPARE_VERSION_KNOWN, VDSO_NAME_LINUX_2_6, VDSO_HASH_LINUX_2_6,
	VDSO_NAME_LINUX_2_6_15, VDSO_HASH_LINUX_2_6_15,
	VDSO_NAME_LINUX_2_6_29, VDSO_HASH_LINUX_2_6_29,
	VDSO_NAME_LINUX_4_15, VDSO_HASH_LINUX_4_15): Remove defines.
	(get_vdso_symbol): New function.
 2019-09-17 17:09:01 -03:00
Paul Eggert
5cb226d7e4 Fix three GNU license URLs, along with trailing-newline issues. 2019-09-07 03:13:16 -07:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
 2019-09-07 02:43:31 -07:00
Zack Weinberg
7b5af2d8f2 Finish move of clock_* functions to libc. [BZ #24959] 
In glibc 2.17, the functions clock_getcpuclockid, clock_getres,
clock_gettime, clock_nanosleep, and clock_settime were moved from
librt.so to libc.so, leaving compatibility stubs behind.  Now that the
dynamic linker no longer insists on finding versioned symbols in the
same library that originally defined them, we do not need the stubs
anymore, and this means we don't need GLIBC_PRIVATE __-prefix aliases
for most of the functions anymore either.  (clock_gettime still needs
one.)  For ports added before 2.17, libc.so needs to provide two
symbol versions for each, the default at GLIBC_2.17 plus a compat
version matching what librt had.

While I'm at it, move the clock_*.c files and their tests from rt/ to
time/.
 2019-09-04 14:39:38 +02:00
Florian Weimer
9743c6272d nptl: Move pthread_attr_getinheritsched implementation into libc 
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-08-30 07:33:02 +02:00
Florian Weimer
ffced383cd nptl: Move pthread_attr_setdetachstate implementation into libc 
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-08-28 12:01:14 +02:00
Adhemerval Zanella
a43565ac44 Refactor sigcontextinfo.h 
This patch refactor sigcontextinfo.h header to use SA_SIGINFO as default
for both gmon and debug implementations.  This allows simplify
profil-counter.h on Linux to use a single implementation and remove the
requirements for newer ports to redefine __sigaction/sigaction to use
SA_SIGINFO.

The GET_PC macro is also replaced with a function sigcontext_get_pc that
returns an uintptr_t instead of a void pointer.  It allows easier convertion
to integer on ILP32 architecture, such as x32, without the need to suppress
compiler warnings.

The patch also requires some refactor of register-dump.h file for some
architectures (to reflect it is now called from a sa_sigaction instead of
sa_handler signal context).

   - Alpha, i386, and s390 are straighfoward to take in consideration the
     new argument type.

   - ia64 takes in consideration the kernel pass a struct sigcontextt
     as third argument for sa_sigaction.

   - sparc take in consideration the kernel pass a pt_regs struct
     as third argument for sa_sigaction.

   - m68k dummy function is removed and the FP state is dumped on
     register_dump itself.

   - For SH the register-dump.h file is consolidate on a common implementation
     and the floating-point state is checked based on ownedfp field.

The register_dump does not change its output format in any affected
architecture.

I checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
arm-linux-gnueabihf, sparcv9-linux-gnu, sparc64-linux-gnu, powerpc-linux-gnu,
powerpc64-linux-gnu, and powerpc64le-linux-gnu.

I also checked the libSegFault.so through catchsegv on alpha-linux-gnu,
m68k-linux-gnu and sh4-linux-gnu to confirm the output has not changed.

	Adhemerval Zanella  <adhemerval.zanella@linaro.org>
	Florian Weimer  <fweimer@redhat.com>

	* debug/segfault.c (install_handler): Use SA_SIGINFO if defined.
	* sysdeps/generic/profil-counter.h (__profil_counter): Cast to
	uintptr_t.
	* sysdeps/generic/sigcontextinfo.h (GET_PC): Rename to
	sigcontext_get_pc and return aligned cast to uintptr_t.
	* sysdeps/mach/hurd/i386/sigcontextinfo.h (GET_PC): Likewise.
	* sysdeps/posix/profil.c (profil_count): Change PC argument to
	uintptr_t.
	(__profil): Use SA_SIGINFO.
	* sysdeps/posix/sprofil.c (profil_count): Change PCP argument to
	uintptr_t.
	(__sprofil): Use SA_SIGINFO.
	* sysdeps/unix/sysv/linux/profil-counter.h: New file.
	* sysdeps/unix/sysv/linux/aarch64/profil-counter.h: Remove file.
	* sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise.
	* sysdeps/sysv/linux/s390/s390-32/profil-counter.h: Likewise.
	* sysdeps/sysv/linux/s390/s390-64/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/profil-counter.h (__profil_counter):
	Assume SA_SIGINFO and use sigcontext_get_pc instead of GET_PC.
	* sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h: Remove file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/profil-counter.h: Likewise.
	* sysdpes/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT,
	GET_PC, __sigaction, sigaction): Remove defines.
	(sigcontext_get_pc): New function.
	* sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: Likewise.
	* sysdeps/sysv/linux/sparc/sparc32/sigcontextinfo.h: Likewise.
	* sysdeps/sysv/linux/sparc/sparc64/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/register-dump.h (register_dump):
	Handle CTX argument as ucontext_t.
	* sysdeps/unix/sysv/linux/i386/register-dump.h: Likewise.
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/register-dump.h: Likewise.
	* sysdeps/sysv/linux/s390/s390-32/register-dump.h: Likewise.
	* sysdeps/sysv/linux/s390/s390-64/register-dump.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/register-dump.h: New file.
	* sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: Remove File.
	* sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h: Likewise.
	* sysdeps/unix/sysv/linux/Makefile (tests-internal): Add
	tst-sigcontextinfo-get_pc.
	* sysdeps/unix/sysv/linux/tst-sigcontextinfo-get_pc.c: New file.
	(CFLAGS-tst-sigcontextinfo-get_pc.c): New rule.
 2019-08-23 11:30:56 -03:00
Florian Weimer
1d714fd95d nptl: Move pthread_attr_getdetachstate implementation into libc 
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-08-16 22:44:44 +02:00
Florian Weimer
a635d756ff nptl: Move pthread_attr_init implementation into libc 
Both the original GLIB_2.0 version and the current GLIBC_2.1 version
need to be moved.
 2019-08-15 19:12:21 +02:00
Joseph Myers
42760d7646 Make totalorder and totalordermag functions take pointer arguments. 
The resolution of C floating-point Clarification Request 25
<http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2397.htm#dr_25> is
that the totalorder and totalordermag functions should take pointer
arguments, and this has been adopted in C2X (with const added; note
that the integration of this change into C2X is present in the C
standard git repository but postdates the most recent public PDF
draft).

This patch updates glibc accordingly.  As a defect resolution, the API
is changed unconditionally rather than supporting any sort of TS
18661-1 mode for compilation with the old version of the API.  There
are compat symbols for existing binaries that pass floating-point
arguments directly.  As a consequence of changing to pointer
arguments, there are no longer type-generic macros in tgmath.h for
these functions.

Because of the fairly complicated logic for creating libm function
aliases and determining the set of aliases to create in a given glibc
configuration, rather than duplicating all that in individual source
files to create the versioned and compat symbols, the source files for
the various versions of totalorder functions are set up to redefine
weak_alias before using libm_alias_* macros to create the symbols
required.  In turn, this requires creating a separate alias for each
symbol version pointing to the same implementation (see binutils bug
<https://sourceware.org/bugzilla/show_bug.cgi?id=23840>), which is
done automatically using __COUNTER__.  (As I noted in
<https://sourceware.org/ml/libc-alpha/2018-10/msg00631.html>, it might
well make sense for glibc's symbol versioning macros to do that alias
creation with __COUNTER__ themselves, which would somewhat simplify
the logic in the totalorder source files.)

It is of course desirable to test the compat symbols.  I did this with
the generic libm-test machinery, but didn't wish to duplicate the
actual tables of test inputs and outputs, and thought it risky to
attempt to have a single object file refer to both default and compat
versions of the same function in order to test them together.  Thus, I
created libm-test-compat_totalorder.inc and
libm-test-compat_totalordermag.inc which include the generated .c
files (with the processed version of those tables of inputs) from the
non-compat tests, and added appropriate dependencies.  I think this
provides sufficient test coverage for the compat symbols without also
needing to make the special ldbl-96 and ldbl-128ibm tests (of
peculiarities relating to the representations of those formats that
can't be covered in the generic tests) run for the compat symbols.

Tests of compat symbols need to be internal tests, meaning _ISOMAC is
not defined.  Making some libm-test tests into internal tests showed
up two other issues.  GCC diagnoses duplicate macro definitions of
__STDC_* macros, including __STDC_WANT_IEC_60559_TYPES_EXT__; I added
an appropriate conditional and filed
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91451> for this issue.
On ia64, include/setjmp.h ends up getting included indirectly from
libm-symbols.h, resulting in conflicting definitions of the STR macro
(also defined in libm-test-driver.c); I renamed the macros in
include/setjmp.h.  (It's arguable that we should have common internal
headers used everywhere for stringizing and concatenation macros.)

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* math/bits/mathcalls.h
	[__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN]
	(totalorder): Take pointer arguments.
	[__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN]
	(totalordermag): Likewise.
	* manual/arith.texi (totalorder): Likewise.
	(totalorderf): Likewise.
	(totalorderl): Likewise.
	(totalorderfN): Likewise.
	(totalorderfNx): Likewise.
	(totalordermag): Likewise.
	(totalordermagf): Likewise.
	(totalordermagl): Likewise.
	(totalordermagfN): Likewise.
	(totalordermagfNx): Likewise.
	* math/tgmath.h (__TGMATH_BINARY_REAL_RET_ONLY): Remove macro.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): Likewise.
	* math/Versions (GLIBC_2.31): Add totalorder, totalorderf,
	totalorderl, totalordermag, totalordermagf, totalordermagl,
	totalorderf32, totalorderf64, totalorderf32x, totalordermagf32,
	totalordermagf64, totalordermagf32x, totalorderf64x,
	totalordermagf64x, totalorderf128 and totalordermagf128.
	* math/Makefile (libm-test-funcs-noauto): Add compat_totalorder
	and compat_totalordermag.
	(libm-test-funcs-compat): New variable.
	(libm-tests-compat): Likewise.
	(tests): Do not include compat tests.
	(tests-internal): Add compat tests.
	($(foreach t,$(libm-tests-base),
	$(objpfx)$(t)-compat_totalorder.o)): Depend
	on $(objpfx)libm-test-totalorder.c.
	($(foreach t,$(libm-tests-base),
	$(objpfx)$(t)-compat_totalordermag.o): Depend on
	$(objpfx)libm-test-totalordermag.c.
	(tgmath3-macros): Remove totalorder and totalordermag.
	* math/libm-test-compat_totalorder.inc: New file.
	* math/libm-test-compat_totalordermag.inc: Likewise.
	* math/libm-test-driver.c (struct test_ff_i_data): Update comment.
	(RUN_TEST_fpfp_b): New macro.
	(RUN_TEST_LOOP_fpfp_b): Likewise.
	* math/libm-test-totalorder.inc (totalorder_test_data): Use
	TEST_fpfp_b.
	(totalorder_test): Condition on [!COMPAT_TEST].
	(do_test): Likewise.
	* math/libm-test-totalordermag.inc (totalordermag_test_data): Use
	TEST_fpfp_b.
	(totalordermag_test): Condition on [!COMPAT_TEST].
	(do_test): Likewise.
	* math/gen-tgmath-tests.py (Tests.add_all_tests): Remove
	totalorder and totalordermag.
	* math/test-tgmath.c (NCALLS): Change to 132.
	(F(compile_test)): Do not call totalorder or totalordermag.
	(F(totalorder)): Remove.
	(F(totalordermag)): Likewise.
	* include/float.h (__STDC_WANT_IEC_60559_TYPES_EXT__): Do not
	define if [__STDC_WANT_IEC_60559_TYPES_EXT__].
	* include/setjmp.h [!_ISOMAC] (STR_HELPER): Rename to
	SJSTR_HELPER.
	[!_ISOMAC] (STR): Rename to SJSTR.  Update call to STR_HELPER.
	[!_ISOMAC] (TEST_SIZE): Update call to STR.
	[!_ISOMAC] (TEST_ALIGN): Likewise.
	[!_ISOMAC] (TEST_OFFSET): Likewise.
	* sysdeps/ieee754/dbl-64/s_totalorder.c: Include <shlib-compat.h>
	and <first-versions.h>.
	(__totalorder): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/dbl-64/s_totalordermag.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermag): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalorder): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermag): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/float128/float128_private.h
	(__totalorder_compatl): New macro.
	(__totalordermag_compatl): Likewise.
	* sysdeps/ieee754/flt-32/s_totalorderf.c: Include <shlib-compat.h>
	and <first-versions.h>.
	(__totalorderf): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/flt-32/s_totalordermagf.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermagf): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-128/s_totalorderl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalorderl): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermagl): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Include
	<shlib-compat.h>.
	(__totalorderl): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Include
	<shlib-compat.h>.
	(__totalordermagl): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-96/s_totalorderl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalorderl): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermagl): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c (totalorderl): Take
	pointer arguments.
	* sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c (totalordermagl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c
	(do_test): Update calls to totalorderl and totalordermagl.
	* sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test):
	Update calls to totalorderl and totalordermagl.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2019-08-15 15:18:34 +00:00
Florian Weimer
17e1347452 nptl: Remove pthread_self compatibility symbol from libpthread 
The symbol is no longer needed because since glibc 2.30, the dynamic
loader continues searching for the symbol in libc.
 2019-08-15 14:33:49 +02:00
Florian Weimer
fa57c30193 nptl: Move pthread_attr_destroy implementation into libc 2019-08-15 13:06:50 +02:00
Florian Weimer
dda373b00e nptl: Move pthread_equal implementation into libc 2019-08-15 08:48:31 +02:00
Adhemerval Zanella
d665367f59 linux: Enable vDSO for static linking as default (BZ#19767) 
This patch assumes static vDSO is supported as default, it is now supported
on all current architectures that support vDSO.  It allows removing both
ALWAYS_USE_VSYSCALL define, which an architecture requires to explicit define
and USE_VSYSCALL (which defines vDSO only for shared or if architecture defines
ALWAYS_USE_VSYSCALL).

Checked with a build against all affected ABIs.

	[BZ #19767]
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (ALWAYS_USE_VSYSCALL):
	Remove definition.
	* sysdeps/unix/sysv/linux/arm/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/riscv/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (ALWAYS_USE_VSYSCALL):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/libc-vdso.h: Remove #if USE_VSYSCALL.
	* sysdeps/unix/sysv/linux/sysdep-vdso.h: Likewise.
	* sysdeps/unix/sysv/linux/sysdep.h (ALWAYS_USE_VSYSCALL,
	USE_VSYSCALL): Remove defitions.
 2019-08-05 16:38:42 -03:00
Adhemerval Zanella
5e855c8954 s390: Enable VDSO for static linking 
Although s390 only enables vDSO for dynamically linked elf binaries
(arch/s390/kernel/vdso.c:217), there is no indication in the code or
associated commit message for why not enable it for statically linked
binaries as well.  To double check, I rebuilt a kernel with the
check removed and the vDSO does work for static build for supplied
symbols.

Checked on s390x-linux-gnu and s390-linux-gnu.

	[BZ #19767]
	* sysdeps/unix/sysv/linux/s390/init-first.c: Remove #ifdef SHARED.
	* sysdeps/unix/sysv/linux/s390/libc-vdso.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(ALWAYS_USE_VSYSCALL): Define.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(ALWAYS_USE_VSYSCALL): Likewise.
 2019-08-05 16:38:22 -03:00
Mike Crowe
9d20e22e46 nptl: Add POSIX-proposed pthread_mutex_clocklock 
Add POSIX-proposed pthread_mutex_clocklock function that works like
pthread_mutex_timedlock but takes a clockid parameter to measure the
abstime parameter against.

	* sysdeps/nptl/pthread.h: Add pthread_mutex_clocklock.
	* nptl/DESIGN-systemtap-probes.txt: Likewise.
	* nptl/pthread_mutex_timedlock.c
	(__pthread_mutex_clocklock_common): Rename from
	__pthread_mutex_timedlock and add clockid parameter. Pass this
	parameter to lll_clocklock and lll_clocklock_elision in place of
	CLOCK_REALTIME. (__pthread_mutex_clocklock): New function to add
	LIBC_PROBE and validate clockid parameter before calling
	__pthread_mutex_clocklock_common. (__pthread_mutex_timedlock): New
	implementation to add LIBC_PROBE and calls
	__pthread_mutex_clocklock_common passing CLOCK_REALTIME as the
	clockid.
	* nptl/Makefile: Add tst-mutex11.c.
	* nptl/tst-abstime.c (th): Add tests for pthread_mutex_clocklock.
	* nptl/tst-mutex11.c: New tests for passing invalid and unsupported
	clockid parameters to pthread_mutex_clocklock.
	* nptl/tst-mutex5.c (do_test_clock): Rename from do_test and take
	clockid parameter to indicate which clock to be used. Call
	pthread_mutex_timedlock or pthread_mutex_clocklock as appropriate.
	(do_test): Call do_test_clock to separately test
	pthread_mutex_timedlock, pthread_mutex_clocklock(CLOCK_REALTIME)
	and pthread_mutex_clocklock(CLOCK_MONOTONIC).
	* nptl/tst-mutex9.c: Likewise.
	* nptl/Versions (GLIBC_2.30): Add pthread_mutex_clocklock.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:25 +00:00
Mike Crowe
e996fa72a9 nptl: Add POSIX-proposed pthread_rwlock_clockrdlock & pthread_rwlock_clockwrlock 
Add:
 int pthread_rwlock_clockrdlock (pthread_rwlock_t *rwlock,
                                 clockid_t clockid,
                                 const struct timespec *abstime)
and:
 int pthread_rwlock_clockwrlock (pthread_rwlock_t *rwlock,
                                 clockid_t clockid,
                                 const struct timespec *abstime)

which behave like pthread_rwlock_timedrdlock and
pthread_rwlock_timedwrlock respectively, except they always measure
abstime against the supplied clockid. The functions currently support
CLOCK_REALTIME and CLOCK_MONOTONIC and return EINVAL if any other
clock is specified.

	* sysdeps/nptl/pthread.h: Add pthread_rwlock_clockrdlock and
	pthread_wrlock_clockwrlock.
	* nptl/Makefile: Build pthread_rwlock_clockrdlock.c and
	pthread_rwlock_clockwrlock.c.
	* nptl/pthread_rwlock_clockrdlock.c: Implement
	pthread_rwlock_clockrdlock.
	* nptl/pthread_rwlock_clockwrlock.c: Implement
	pthread_rwlock_clockwrlock.
	* nptl/pthread_rwlock_common.c (__pthread_rwlock_rdlock_full): Add
	clockid parameter and verify that it indicates a supported clock on
	entry so that we fail even if it doesn't end up being used. Pass
	that clock on to futex_abstimed_wait when necessary.
	(__pthread_rwlock_wrlock_full): Likewise.
	* nptl/pthread_rwlock_rdlock.c: (__pthread_rwlock_rdlock): Pass
	CLOCK_REALTIME to __pthread_rwlock_rdlock_full even though it won't
	be used because there's no timeout.
	* nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Pass
	CLOCK_REALTIME to __pthread_rwlock_wrlock_full even though it won't
	be used because there is no timeout.
	* nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
	Pass CLOCK_REALTIME to __pthread_rwlock_rdlock_full since abstime
	uses that clock.
	* nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
	Pass CLOCK_REALTIME to __pthread_rwlock_wrlock_full since abstime
	uses that clock.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* nptl/tst-abstime.c (th): Add pthread_rwlock_clockrdlock and
	pthread_rwlock_clockwrlock timeout tests to match the existing
	pthread_rwlock_timedrdloock and pthread_rwlock_timedwrlock tests.
	* nptl/tst-rwlock14.c (do_test): Likewise.
	* nptl/tst-rwlock6.c Invent verbose_printf macro, and use for
	ancillary output throughout. (tf): Accept thread_args structure so
	that rwlock, a clockid and function name can be passed to the
	thread. (do_test_clock): Rename from do_test. Accept clockid
	parameter to specify test clock. Use the magic clockid value of
	CLOCK_USE_TIMEDLOCK to indicate that pthread_rwlock_timedrdlock and
	pthread_rwlock_timedwrlock should be tested, otherwise pass the
	specified clockid to pthread_rwlock_clockrdlock and
	pthread_rwlock_clockwrlock. Use xpthread_create and xpthread_join.
	(do_test): Call do_test_clock to test each clockid in turn.
	* nptl/tst-rwlock7.c: Likewise.
	* nptl/tst-rwlock9.c (writer_thread, reader_thread): Accept
	thread_args structure so that the (now int) thread number, the
	clockid and the function name can be passed to the thread.
	(do_test_clock): Renamed from do_test. Pass the necessary
	thread_args when creating the reader and writer threads. Use
	xpthread_create and xpthread_join.
	(do_test): Call do_test_clock to test each clockid in turn.
	* manual/threads.texi: Add documentation for
	pthread_rwlock_clockrdlock and pthread_rwlock_clockwrclock.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:24 +00:00
Mike Crowe
afe4de7d28 nptl: Add POSIX-proposed pthread_cond_clockwait 
Add:

 int pthread_cond_clockwait (pthread_cond_t *cond,
                             pthread_mutex_t *mutex,
                             clockid_t clockid,
                             const struct timespec *abstime)

which behaves just like pthread_cond_timedwait except it always measures
abstime against the supplied clockid. Currently supports CLOCK_REALTIME
and
CLOCK_MONOTONIC and returns EINVAL if any other clock is specified.

Includes feedback from many others. This function was originally
proposed[1] as pthread_cond_timedwaitonclock_np, but The Austin Group
preferred the new name.

	* nptl/Makefile: Add tst-cond26 and tst-cond27
	* nptl/Versions (GLIBC_2.30): Add pthread_cond_clockwait
	* sysdeps/nptl/pthread.h: Likewise
	* nptl/forward.c: Add __pthread_cond_clockwait
	* nptl/forward.c: Likewise
	* nptl/pthreadP.h: Likewise
	* sysdeps/nptl/pthread-functions.h: Likewise
	* nptl/pthread_cond_wait.c (__pthread_cond_wait_common): Add
	clockid parameter and comment describing why we don't need to
	check
	its value. Use that value when calling
	futex_abstimed_wait_cancelable rather than reading the clock
	from
	the flags. (__pthread_cond_wait): Pass unused clockid parameter.
	(__pthread_cond_timedwait): Read clock from flags and pass it to
	__pthread_cond_wait_common. (__pthread_cond_clockwait): Add new
	function with weak alias from pthread_cond_clockwait.
	* sysdeps/mach/hurd/i386/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist
	* (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30):
	* Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* nptl/tst-cond11.c (run_test): Support testing
	pthread_cond_clockwait too by using a special magic
	CLOCK_USE_ATTR_CLOCK value to determine whether to call
	pthread_cond_timedwait or pthread_cond_clockwait. (do_test):
	Pass
	CLOCK_USE_ATTR_CLOCK for existing tests, and add new tests using
	all combinations of CLOCK_MONOTONIC and CLOCK_REALTIME.
	* ntpl/tst-cond26.c: New test for passing unsupported and
	* invalid
	clocks to pthread_cond_clockwait.
	* nptl/tst-cond27.c: Add test similar to tst-cond5.c, but using
	struct timespec and pthread_cond_clockwait.
	* manual/threads.texi: Document pthread_cond_clockwait. The
	* comment
	was provided by Carlos O'Donell.

[1] https://sourceware.org/ml/libc-alpha/2015-07/msg00193.html

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:24 +00:00
Mike Crowe
6615f77978 nptl: Add POSIX-proposed sem_clockwait 
Add:

 int sem_clockwait (sem_t *sem, clockid_t clock, const struct timespec
*abstime)

which behaves just like sem_timedwait, but measures abstime against the
specified clock. Currently supports CLOCK_REALTIME and CLOCK_MONOTONIC
and sets errno == EINVAL if any other clock is specified.

	* nptl/sem_waitcommon.c (do_futex_wait, __new_sem_wait_slow): Add
	clockid parameters to indicate the clock which abstime should be
	measured against.
	* nptl/sem_timedwait.c (sem_timedwait), nptl/sem_wait.c
	(__new_sem_wait): Pass CLOCK_REALTIME as clockid to
	__new_sem_wait_slow.
	* nptl/sem_clockwait.c: New file to implement sem_clockwait based
	on sem_timedwait.c.
	* nptl/Makefile: Add sem_clockwait.c source file. Add CFLAGS for
	sem_clockwait.c to match those used for sem_timedwait.c.
	* sysdeps/pthread/semaphore.h: Add sem_clockwait.
	* nptl/Versions (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
	(GLIBC_2.30): Likewise.
	* nptl/tst-sem17.c: Add new test for passing invalid clock to
	sem_clockwait.
	* nptl/tst-sem13.c, nptl/tst-sem5.c: Modify existing sem_timedwait
	tests to also test sem_clockwait.
	* manual/threads.texi: Document sem_clockwait.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-07-12 13:36:23 +00:00
Florian Weimer
41d6f74e6c nptl: Remove vfork IFUNC-based forwarder from libpthread [BZ #20188] 
With commit f0b2132b35 ("ld.so:
Support moving versioned symbols between sonames [BZ #24741]"), the
dynamic linker will find the definition of vfork in libc and binds
a vfork reference to that symbol, even if the soname in the version
reference says that the symbol should be located in libpthread.

As a result, the forwarder (whether it's IFUNC-based or a duplicate
of the libc implementation) is no longer necessary.

On older architectures, a placeholder symbol is required, to make sure
that the GLIBC_2.1.2 symbol version does not go away, or is turned in
to a weak symbol definition by the link editor.  (The symbol version
needs to preserved so that the symbol coverage check in
elf/dl-version.c does not fail for old binaries.)

mips32 is an outlier: It defined __vfork@@GLIBC_2.2, but the
baseline is GLIBC_2.0.  Since there are other @@GLIBC_2.2 symbols,
the placeholder symbol is not needed there.
 2019-07-02 16:51:13 +02:00
Florian Weimer
51ea67d548 Linux: Add getdents64 system call 
No 32-bit system call wrapper is added because the interface
is problematic because it cannot deal with 64-bit inode numbers
and 64-bit directory hashes.

A future commit will deprecate the undocumented getdirentries
and getdirentries64 functions.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2019-06-07 09:27:01 +02:00
Florian Weimer
04b261bdc1 Linux: Add the tgkill function 
The tgkill function is sometimes used in crash handlers.

<bits/signal_ext.h> follows the same approach as <bits/unistd_ext.h>
(which was added for the gettid system call wrapper).

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2019-05-14 22:55:51 +02:00
Florian Weimer
7b807a35a8 misc: Add twalk_r function 
The twalk function is very difficult to use in a multi-threaded
program because there is no way to pass external state to the
iterator function.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2019-05-02 11:42:51 +02:00
Gabriel F. T. Gomes
d11086a939 ldbl-opt: Add error and error_at_line (bug 23984) 
On platforms where long double may have the same format as double
(-mlong-double-64), error and error_at_line do not take that into
account and might produce wrong output if a long double conversion is
requested by the format string ('%Lf').  This patch adds compatibility
functions for this situation and redirects calls via header magic.

Tested for powerpc, powerpc64 and powerpc64le.
 2019-03-01 15:26:36 -03:00
Gabriel F. T. Gomes
90188e7d1a ldbl-opt: Add err, errx, verr, verrx, warn, warnx, vwarn, and vwarnx (bug 23984) 
When support for long double format with 128-bits (-mlong-double-128)
was added for platforms where long double had the same format as double,
such as powerpc, compatibility versions for the functions listed in the
commit title were missed.  Since the older format of long double can
still be used (with -mlong-double-64), using these functions with a
format string that requests the printing of long double variables will
produce wrong outputs.

This patch adds the missing compatibility functions and header magic to
redirect calls to them when -mlong-double-64 is in use.

Tested for powerpc, powerpc64 and powerpc64le.
 2019-03-01 15:24:51 -03:00
Gabriel F. T. Gomes
6e1f6440b9 ldbl-opt: Add argp_error and argp_failure (bug 23983) 
The functions argp_error and argp_failure are missing support for
printing long double values when long double has the same format as
double.  This patch adds the new functions __nldbl_argp_error and
__nldbl_argp_failure, as well as header magic to redirect calls to them
when -mlong-double-64 is in use.

Tested for powerpc, powerpc64 and powerpc64le.
 2019-03-01 15:21:32 -03:00
Joseph Myers
aa0e46636a Break further lines before not after operators. 
This patch continues the process of fixing coding style to break lines
before not after operators in accordance with the GNU Coding
Standards, fixing such issues in a non-exhaustive selection of sysdeps
files that had them.

Tested for x86_64, and with build-many-glibcs.py.

	* sysdeps/arm/sysdep.h (#if condition): Break lines before rather
	than after operators.
	* sysdeps/mach/hurd/fork.c (__fork): Likewise.
	* sysdeps/mach/hurd/getcwd.c
	(__hurd_canonicalize_directory_name_internal): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-consistent.c
	(pthread_mutex_consistent): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-init.c (_pthread_mutex_init):
	Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-transfer-np.c
	(__pthread_mutex_transfer_np): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-unlock.c
	(__pthread_mutex_unlock): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex.h (ROBUST_LOCK): Likewise.
	(mtx_owned_p): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutexattr-getrobust.c
	(pthread_mutexattr_getrobust): Likewise.
	* sysdeps/mach/hurd/i386/init-first.c (init1): Likewise.
	* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
	Likewise.
	* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
	* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise.
	* sysdeps/mach/hurd/kill.c (__kill): Likewise.
	* sysdeps/mach/hurd/mig-reply.c (__mig_get_reply_port): Likewise.
	* sysdeps/mach/hurd/ptrace.c (ptrace): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (#if condition):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/ioperm.c (process_cpuinfo):
	Likewise.
	* sysdeps/unix/sysv/linux/bits/timex.h (STA_RONLY): Likewise.
	* sysdeps/unix/sysv/linux/csky/sysdep.h (#if condition): Likewise.
	* sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
	(____longjmp_chk): Likewise.
	* sysdeps/unix/sysv/linux/generic/futimesat.c (futimesat):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(INTERNAL_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(INTERNAL_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
	(__get_clockfreq_via_cpuinfo): Likewise.
 2019-02-26 15:01:50 +00:00
Florian Weimer
1d0fc21382 Linux: Add gettid system call wrapper [BZ #6399] 
This commit adds gettid to <unistd.h> on Linux, and not to the
kernel-independent GNU API.

gettid is now supportable on Linux because too many things assume a
1:1 mapping between libpthread threads and kernel threads.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2019-02-08 11:27:55 +01:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2019-01-01 00:11:28 +00:00
H.J. Lu
a092ca9453 Add getcpu 
Add

  #include <sched.h>

  int getcpu (unsigned int *cpu, unsigned int *node);

to return currently used CPU and NUMA node.

Tested on x86-64, x32 and i686 as well as with build-many-glibcs.py.

	* NEWS: Mention getcpu.
	* include/sched.h (__getcpu): New libc_hidden_proto.
	* manual/resource.texi: Document getcpu.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add getcpu.
	* sysdeps/unix/sysv/linux/Versions (GLIBC_2.29): Add getcpu.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add getcpu.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/bits/sched.h (getcpu): New prototype.
	* sysdeps/unix/sysv/linux/getcpu.c: New file.
	* sysdeps/unix/sysv/linux/tst-skeleton-affinity.c (test_size):
	Also check getcpu.
 2018-12-07 09:17:50 -08:00
Florian Weimer
3a3fb75572 posix: New function posix_spawn_file_actions_addfchdir_np [BZ #17405] 
Along with posix_spawn_file_actions_addchdir,
posix_spawn_file_actions_addfchdir is the subject of a change proposal
for POSIX: <http://austingroupbugs.net/view.php?id=1208>
 2018-12-07 16:04:05 +01:00
Szabolcs Nagy
a502c5294b Remove the error handling wrapper from pow 
Introduce new pow symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_pow.c and enabled for targets with their own pow implementation or
ifunc dispatch on __ieee754_pow by including math/w_pow.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously powl was an alias of pow, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __pow_finite symbol is now an alias of pow.  Both __pow_finite and
pow set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that
may affect that header.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add pow.
	* math/w_pow_compat.c (__pow_compat): Change to versioned compat
	symbol.
	* math/w_pow.c: New file.
	* sysdeps/i386/fpu/w_pow.c: New file.
	* sysdeps/ia64/fpu/e_pow.S: Add versioned symbols.
	* sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Rename to __pow
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_pow.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_pow.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_pow-fma.c (__ieee754_pow): Rename to
	__pow.
	* sysdeps/x86_64/fpu/multiarch/e_pow-fma4.c (__ieee754_pow): Likewise.
	* sysdeps/x86_64/fpu/multiarch/e_pow.c (__ieee754_pow): Likewise.
	* sysdeps/x86_64/fpu/multiarch/w_pow.c: New file.
 2018-11-21 09:58:36 +00:00
Szabolcs Nagy
718d6542f2 Remove the error handling wrapper from log2 
Introduce new log2 symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log2.c and enabled for targets with their own log2 implementation by
including math/w_log2.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously log2l was an alias of log2, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __log2_finite symbol is now an alias of log2.  Both __log2_finite
and log2 set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add log2.
	* math/w_log2_compat.c (__log2_compat): Change to versioned compat
	symbol.
	* math/w_log2.c: New file.
	* sysdeps/i386/fpu/w_log2.c: New file.
	* sysdeps/ia64/fpu/e_log2.S: Add versioned symbols.
	* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_log2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_log2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
 2018-11-21 09:57:21 +00:00
Szabolcs Nagy
f29b7c492d Remove the error handling wrapper from log 
Introduce new log symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log.c and enabled for targets with their own log implementation by
including math/w_log.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously logl was an alias of log, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __log_finite symbol is now an alias of log.  Both __log_finite and
log set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that may
affect that header.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add log.
	* math/w_log_compat.c (__log_compat): Change to versioned compat
	symbol.
	* math/w_log.c: New file.
	* sysdeps/i386/fpu/w_log.c: New file.
	* sysdeps/ia64/fpu/e_log.S: Update.
	* sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Rename to __log
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_log.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_log.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_log-avx.c (__ieee754_log): Rename to
	__log.
	* sysdeps/x86_64/fpu/multiarch/e_log-fma.c (__ieee754_log): Likewise.
	* sysdeps/x86_64/fpu/multiarch/e_log-fma4.c (__ieee754_log): Likewise.
	* sysdeps/x86_64/fpu/multiarch/e_log.c (__ieee754_log): Likewise.
	* sysdeps/x86_64/fpu/multiarch/w_log.c: New file.
 2018-11-21 09:56:27 +00:00
Szabolcs Nagy
c20a10561a Remove the error handling wrapper from exp and exp2 
Introduce new exp and exp2 symbol version that don't do SVID compatible
error handling.  The standard errno and fp exception based error handling
is inline in the new code and does not have significant overhead.

The double precision wrappers are disabled for sysdeps/ieee754/dbl-64
by using empty w_exp.c and w_exp2.c files, the math/w_exp.c and
math/w_exp2.c files use the wrapper template and can be included by
targets that have their own exp and exp2 implementations or use ifunc
on the glibc internal __ieee754_exp symbol.

The compatibility symbol versions still use the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously expl and exp2l were aliases of exp and exp2,
now they point to the compatibility symbols with the wrapper, because
they still need the SVID compatible error handling.  This affects
NO_LONG_DOUBLE (e.g arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets
as well.

The _finite symbols are now aliases of the standard symbols (they have
no performance advantage anymore).  Both the standard symbols and
_finite symbols set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that may
affect that header (the new macro name is __exp instead of __ieee754_exp
which breaks some math.h macros).

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add exp and exp2.
	* math/w_exp2_compat.c (__exp2_compat): Change to versioned compat
	symbol, handle NO_LONG_DOUBLE and LONG_DOUBLE_COMPAT explicitly.
	* math/w_exp_compat.c (__exp_compat): Likewise.
	* math/w_exp.c: New file.
	* math/w_exp2.c: New file.
	* sysdeps/i386/fpu/w_exp.c: New file.
	* sysdeps/i386/fpu/w_exp2.c: New file.
	* sysdeps/ia64/fpu/e_exp.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_exp2.S: Likewise.
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Rename to __exp
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Rename to __exp2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_exp.c: New file.
	* sysdeps/ieee754/dbl-64/w_exp2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp.c (__ieee754_exp): Rename to
	__exp.
	* sysdeps/x86_64/fpu/multiarch/w_exp.c: New file.
 2018-11-21 09:55:02 +00:00
Florian Weimer
4a938cb273 posix: New function posix_spawn_file_actions_addchdir_np [BZ #17405] 2018-11-06 16:08:12 +01:00
Ilya Leoshkevich
71c01af52f S390: Implement 64-bit __fentry__ 
* Since __fentry__ is almost the same as _mcount, reuse the code by
  #including it twice with different #defines around.
* Remove LA usages - they are needed in 31-bit mode to clear the top
  bit, but in 64-bit they appear to do nothing.
* Add CFI rule for the nonstandard return register. This rule applies
  to the current function (binutils generates a new CIE - see
  gas/dw2gencfi.c:select_cie_for_fde()), so it is not necessary to put
  __fentry__ into a new file.
* Fix CFI offset for %r14.
* Add CFI rule for %r0.
* Fix unwound value of %r15 being off by 244 bytes.
* Unwinding in __fentry__@plt does not work, no plan to fix it - it
  would require asking linker to generate CFI for return address in
  %r0.  From functional perspective keeping it broken is fine, since
  the callee did not have a chance to do anything yet.  From
  convenience perspective it would be possible to enhance GDB in the
  future to treat __fentry__@plt in a special way.
* Fix whitespace.
* Fix offsets in comments, which were copied from 32-bit code.
* 32-bit version will not be implemented, since it's not compatible
  with the corresponding PLT stubs: they assume %r12 points to GOT,
  which is not the case for gcc-emitted __fentry__ stub, which runs
  before the prolog.

This patch adds the runtime support in glibc for the -mfentry
gcc feature introduced in [1] and [2].

[1] https://gcc.gnu.org/ml/gcc-patches/2018-07/msg00784.html
[2] https://gcc.gnu.org/ml/gcc-patches/2018-07/msg00912.html

ChangeLog:

	* sysdeps/s390/s390-64/Versions (__fentry__): Add.
	* sysdeps/s390/s390-64/s390x-mcount.S: Move the common
	code to s390x-mcount.h and #include it.
	* sysdeps/s390/s390-64/s390x-mcount.h: New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
	(__fentry__): Add.
 2018-08-10 09:07:44 +02:00
Adhemerval Zanella
c6dd669bed nptl: Add abilist symbols for C11 threads 
This patch adds the required abilist symbols for C11 thread support.

Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
and x86_64-linux-gnu).

Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu,
arm-linux-gnueabhf, and powerpc64le-linux-gnu.

	[BZ #14092]
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist [GLIBC_2.28]
	(thrd_current, thrd_equal, thrd_sleep, thrd_yield): Add C11 thread
	symbols.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist [[GLIBC_2.28]
	(call_once, cnd_broadcast, cnd_destroy, cnd_init, cnd_signal,
	cnd_timedwait, cnd_wait, mtx_destroy, mtx_init, mtx_lock,
	mtx_timedlock, mtx_trylock, mtx_unlokc, thrd_create, thrd_detach,
	thrd_exit, thrd_join, tss_create, tss_delete, tss_get, tss_set):
	Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist: Likewise.
	ikewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist:
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist: Likewise.
 2018-07-24 14:07:18 -03:00
Florian Weimer
fd70af4552 Add the statx function 2018-07-10 16:14:45 +02:00
Florian Weimer
d6da5cb6a8 Add renameat2 function [BZ #17662] 
The implementation falls back to renameat if renameat2 is not available
in the kernel (or in the kernel headers) and the flags argument is zero.
Without kernel support, a non-zero argument returns EINVAL, not ENOSYS.
This mirrors what the kernel does for invalid renameat2 flags.
 2018-07-05 19:00:10 +02:00
Adhemerval Zanella
06ab719d30 Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251) 
This patch fixes the OFD ("file private") locks for architectures that
support non-LFS flock definition (__USE_FILE_OFFSET64 not defined). The
issue in this case is both F_OFD_{GETLK,SETLK,SETLKW} and
F_{SET,GET}L{W}K64 expects a flock64 argument and when using old
F_OFD_* flags with a non LFS flock argument the kernel might interpret
the underlying data wrongly.  Kernel idea originally was to avoid using
such flags in non-LFS syscall, but since GLIBC uses fcntl with LFS
semantic as default it is possible to provide the functionality and
avoid the bogus struct kernel passing by adjusting the struct manually
for the required flags.

The idea follows other LFS interfaces that provide two symbols:

  1. A new LFS fcntl64 is added on default ABI with the usual macros to
     select it for FILE_OFFSET_BITS=64.

  2. The Linux non-LFS fcntl use a stack allocated struct flock64 for
     F_OFD_{GETLK,SETLK,SETLKW} copy the results on the user provided
     struct.

  3. Keep a compat symbol with old broken semantic for architectures
     that do not define __OFF_T_MATCHES_OFF64_T.

So for architectures which defines __USE_FILE_OFFSET64, fcntl64 will
aliased to fcntl and no adjustment would be required.  So to actually
use F_OFD_* with LFS support the source must be built with LFS support
(_FILE_OFFSET_BITS=64).

Also F_OFD_SETLKW command is handled a cancellation point, as for
F_SETLKW{64}.

Checked on x86_64-linux-gnu and i686-linux-gnu.

	[BZ #20251]
	* NEWS: Mention fcntl64 addition.
	* csu/check_fds.c: Replace __fcntl_nocancel by __fcntl64_nocancel.
	* login/utmp_file.c: Likewise.
	* sysdeps/posix/fdopendir.c: Likewise.
	* sysdeps/posix/opendir.c: Likewise.
	* sysdeps/unix/pt-fcntl.c: Likewise.
	* include/fcntl.h (__libc_fcntl64, __fcntl64,
	__fcntl64_nocancel_adjusted): New prototype.
	(__fcntl_nocancel_adjusted): Remove prototype.
	* io/Makefile (routines): Add fcntl64.
	(CFLAGS-fcntl64.c): New rule.
	* io/Versions [GLIBC_2.28] (fcntl64): New symbol.
	[GLIBC_PRIVATE] (__libc_fcntl): Rename to __libc_fcntl64.
	* io/fcntl.h (fcntl64): Add prototype and redirect if
	__USE_FILE_OFFSET64 is defined.
	* io/fcntl64.c: New file.
	* manual/llio.text: Add a note for which commands fcntl acts a
	cancellation point.
	* nptl/Makefile (CFLAGS-fcntl64.c): New rule.
	* sysdeps/mach/hurd/fcntl.c: Alias fcntl to fcntl64 symbols.
	* sysdeps/mach/hurd/i386/libc.abilist [GLIBC_2.28] (fcntl, fcntl64):
	New symbols.
	* sysdeps/unix/sysv/linux/fcntl.c (__libc_fcntl): Fix F_GETLK64,
	F_OFD_GETLK, F_SETLK64, F_SETLKW64, F_OFD_SETLK, and F_OFD_SETLKW for
	non-LFS case.
	* sysdeps/unix/sysv/linux/fcntl64.c: New file.
	* sysdeps/unix/sysv/linux/fcntl_nocancel.c (__fcntl_nocancel): Rename
	to __fcntl64_nocancel.
	(__fcntl_nocancel_adjusted): Rename to __fcntl64_nocancel_adjusted.
	* sysdeps/unix/sysv/linux/not-cancel.h (__fcntl_nocancel): Rename
	to __fcntl64_nocancel.
	* sysdeps/unix/sysv/linux/tst-ofdlocks.c: New file.
	* sysdeps/unix/sysv/linux/tst-ofdlocks-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/Makefile (tests): Add tst-ofdlocks.
	(tests-internal): Add tst-ofdlocks-compat.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist [GLIBC_2.28]
	(fcntl64): New symbol.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist [GLIBC_2.28] (fcntl,
	fcntl64): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilis: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
 2018-06-26 13:22:53 -03:00
Joseph Myers
632a6cbe44 Add narrowing divide functions. 
This patch adds the narrowing divide functions from TS 18661-1 to
glibc's libm: fdiv, fdivl, ddivl, f32divf64, f32divf32x, f32xdivf64
for all configurations; f32divf64x, f32divf128, f64divf64x,
f64divf128, f32xdivf64x, f32xdivf128, f64xdivf128 for configurations
with _Float64x and _Float128; __nldbl_ddivl for ldbl-opt.

The changes are mostly essentially the same as for the other narrowing
functions, so the description of those generally applies to this patch
as well.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add div.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing divide functions.
	* math/bits/mathcalls-narrow.h (div): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add div.
	* math/math-narrow.h (CHECK_NARROW_DIV): New macro.
	(NARROW_DIV_ROUND_TO_ODD): Likewise.
	(NARROW_DIV_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fdivl): New
	macro.
	(__ddivl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fdiv and
	ddiv.
	(CFLAGS-nldbl-ddiv.c): New variable.
	(CFLAGS-nldbl-fdiv.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_ddivl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_ddivl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fdiv, fdivl,
	ddivl, fMdivfN, fMdivfNx, fMxdivfN and fMxdivfNx.
	* math/auto-libm-test-in: Add tests of div.
	* math/auto-libm-test-out-narrow-div: New generated file.
	* math/libm-test-narrow-div.inc: New file.
	* sysdeps/i386/fpu/s_f32xdivf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xdivf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fdiv.c: Likewise.
	* sysdeps/ieee754/float128/s_f32divf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64divf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xdivf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xdivf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ddiv.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fdiv.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdiv.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-05-17 00:40:52 +00:00
Joseph Myers
69a01461ee Add narrowing multiply functions. 
This patch adds the narrowing multiply functions from TS 18661-1 to
glibc's libm: fmul, fmull, dmull, f32mulf64, f32mulf32x, f32xmulf64
for all configurations; f32mulf64x, f32mulf128, f64mulf64x,
f64mulf128, f32xmulf64x, f32xmulf128, f64xmulf128 for configurations
with _Float64x and _Float128; __nldbl_dmull for ldbl-opt.

The changes are mostly essentially the same as for the narrowing add
functions, so the description of those generally applies to this patch
as well.  f32xmulf64 for i386 cannot use precision control as used for
add and subtract, because that would result in double rounding for
subnormal results, so that uses round-to-odd with long double
intermediate result instead.  The soft-fp support involves adding a
new FP_TRUNC_COOKED since soft-fp multiplication uses cooked inputs
and outputs.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add mul.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing multiply functions.
	* math/bits/mathcalls-narrow.h (mul): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add mul.
	* math/math-narrow.h (CHECK_NARROW_MUL): New macro.
	(NARROW_MUL_ROUND_TO_ODD): Likewise.
	(NARROW_MUL_TRIVIAL): Likewise.
	* soft-fp/op-common.h (FP_TRUNC_COOKED): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fmull): New
	macro.
	(__dmull): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fmul and
	dmul.
	(CFLAGS-nldbl-dmul.c): New variable.
	(CFLAGS-nldbl-fmul.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_dmull.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_dmull): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fmul, fmull,
	dmull, fMmulfN, fMmulfNx, fMxmulfN and fMxmulfNx.
	* math/auto-libm-test-in: Add tests of mul.
	* math/auto-libm-test-out-narrow-mul: New generated file.
	* math/libm-test-narrow-mul.inc: New file.
	* sysdeps/i386/fpu/s_f32xmulf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xmulf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fmul.c: Likewise.
	* sysdeps/ieee754/float128/s_f32mulf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64mulf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xmulf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_dmull.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xmulf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fmull.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_dmull.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fmull.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_dmull.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fmull.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-dmul.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fmul.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dmull.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fmul.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fmull.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-05-16 00:05:28 +00:00
Joseph Myers
b289cd9db8 Ignore absolute symbols in ABI tests. 
A recent binutils patch
<https://sourceware.org/ml/binutils/2018-04/msg00336.html> stops the
MIPS linker including the _gp_disp absolute symbol in dynamic symbol
tables.

With older binutils, it is included for MIPS o32 (despite the use of
symbol versioning), and this means that all the ABI test baselines for
MIPS o32 include "_gp_disp _gp_disp A".  This symbol is not
meaningfully part of the ABI for shared libraries, since it always has
to be resolved at static link time to the local definition for the
linked object.

All the other absolute symbols in ABI test baselines are the names of
symbol versions.  I don't think the mere existence of a symbol version
with a given name - as opposed to the contents of that version if
nonempty - is part of the ABI either.  Thus, this patch allows the ABI
tests to pass both before and after the binutils change by changing
abilist.awk not to include absolute symbols in its output, and
changing the baselines accordingly.

Tested for x86_64, and with build-many-glibcs.py.

	* scripts/abilist.awk: Ignore absolute symbols.
	* sysdeps/mach/hurd/i386/ld.abilist: Remove absolute symbols.
	* sysdeps/mach/hurd/i386/libBrokenLocale.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libanl.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libc.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libcrypt.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libdl.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libnsl.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libpthread.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libresolv.abilist: Likewise.
	* sysdeps/mach/hurd/i386/librt.abilist: Likewise.
	* sysdeps/mach/hurd/i386/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libcidn.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_compat.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_dns.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_files.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_hesiod.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_nis.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libnss_nisplus.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libresolv.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libthread_db.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libBrokenLocale-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libanl-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libcrypt-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libdl-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libnsl-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libpthread.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libresolv-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libresolv.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/librt-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libthread_db-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libthread_db.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libutil-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libBrokenLocale.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libutil.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libBrokenLocale.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libanl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libcrypt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libdl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libnsl.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libresolv.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/librt.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libthread_db.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libutil.abilist: Likewise.
 2018-05-04 15:46:32 +00:00
Adhemerval Zanella
b4a5d26d88 linux: Consolidate sigaction implementation 
This patch consolidates all Linux sigaction implementations on the default
sysdeps/unix/sysv/linux/sigaction.c.  The idea is remove redundant code
and simplify new ports addition by following the current generic
Linux User API (UAPI).

The UAPI for new ports defines a generic extensible sigaction struct as:

  struct sigaction
  {
    __sighandler_t sa_handler;
    unsigned long sa_flags;
  #ifdef SA_RESTORER
    void (*sa_restorer) (void);
  #endif
    sigset_t sa_mask;
  };

Where SA_RESTORER is just placed for compatibility reasons (news ports
should not add it).  A similar definition is used on generic
kernel_sigaction.h.

The user exported sigaction definition is not changed, so for most
architectures it requires an adjustment to kernel expected one for the
syscall.

The main changes are:

  - All architectures now define and use a kernel_sigaction struct meant
    for the syscall, even for the architectures where the user sigaction
    has the same layout of the kernel expected one (s390-64 and ia64).
    Although it requires more work for these architectures, it simplifies
    the generic implementation. Also, sigaction is hardly a hotspot where
    micro optimization would play an important role.

  - The generic kernel_sigaction definition is now aligned with expected
    UAPI one for newer ports, where SA_RESTORER and sa_restorer are not
    expected to be defined.  This means adding kernel_sigaction for
    current architectures that does define it (m68k, nios2, powerpc, s390,
    sh, sparc, and tile) and which rely on previous generic definition.

  - Remove old MIPS usage of sa_restorer.  This was removed since 2.6.27
    (2957c9e61ee9c - "[MIPS] IRIX: Goodbye and thanks for all the fish").

  - The remaining arch-specific sigaction.c are to handle ABI idiosyncrasies
    (like SPARC kernel ABI for rt_sigaction that requires an additional
    stub argument).

So for new ports the generic implementation should work if its uses
Linux UAPI.  If SA_RESTORER is still required (due some architecture
limitation), it should define its own kernel_sigaction.h, define it and
include generic header (assuming it still uses the default generic kernel
layout).

Checked on x86_64-linux-gnu, i686-linux-gnu, arm-linux-gnueabihf,
aarch64-linux-gnu, sparc64-linux-gnu, sparcv9-linux-gnu, powerpc-linux-gnu,
powerpc64-linux-gnu, ia64-linux-gnu and alpha-linux-gnu.  I also checked the
build on all remaining affected ABIs.

	* sysdeps/unix/sysv/linux/aarch64/sigaction.c: Use default Linux version
	as base implementation.
	* sysdeps/unix/sysv/linux/arm/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h: Add include guards,
	remove unrequired definitions and update comments.
	* sysdeps/unix/sysv/linux/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel_sigaction.h: New file.
	* sysdeps/unix/sysv/linux/m68k/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/kernel_sigaction: Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigaction.c: Remove file.
	* sysdeps/unix/sysv/linux/mips/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sigaction.c: Add STUB, SET_SA_RESTORER,
	and RESET_SA_RESTORER hooks.
 2018-04-05 17:09:50 -03:00
Joseph Myers
8d3f9e85cf Add narrowing subtract functions. 
This patch adds the narrowing subtract functions from TS 18661-1 to
glibc's libm: fsub, fsubl, dsubl, f32subf64, f32subf32x, f32xsubf64
for all configurations; f32subf64x, f32subf128, f64subf64x,
f64subf128, f32xsubf64x, f32xsubf128, f64xsubf128 for configurations
with _Float64x and _Float128; __nldbl_dsubl for ldbl-opt.

The changes are essentially the same as for the narrowing add
functions, so the description of those generally applies to this patch
as well.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add sub.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing subtract functions.
	* math/bits/mathcalls-narrow.h (sub): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add sub.
	* math/math-narrow.h (CHECK_NARROW_SUB): New macro.
	(NARROW_SUB_ROUND_TO_ODD): Likewise.
	(NARROW_SUB_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fsubl): New
	macro.
	(__dsubl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fsub and
	dsub.
	(CFLAGS-nldbl-dsub.c): New variable.
	(CFLAGS-nldbl-fsub.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_dsubl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_dsubl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fsub, fsubl,
	dsubl, fMsubfN, fMsubfNx, fMxsubfN and fMxsubfNx.
	* math/auto-libm-test-in: Add tests of sub.
	* math/auto-libm-test-out-narrow-sub: New generated file.
	* math/libm-test-narrow-sub.inc: New file.
	* sysdeps/i386/fpu/s_f32xsubf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xsubf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fsub.c: Likewise.
	* sysdeps/ieee754/float128/s_f32subf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64subf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xsubf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_dsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xsubf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_dsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_dsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fsubl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-dsub.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fsub.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fsub.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-03-20 00:34:52 +00:00
Joseph Myers
d8742dd82f Add narrowing add functions. 
This patch adds the narrowing add functions from TS 18661-1 to glibc's
libm: fadd, faddl, daddl, f32addf64, f32addf32x, f32xaddf64 for all
configurations; f32addf64x, f32addf128, f64addf64x, f64addf128,
f32xaddf64x, f32xaddf128, f64xaddf128 for configurations with
_Float64x and _Float128; __nldbl_daddl for ldbl-opt.  As discussed for
the build infrastructure patch, tgmath.h support is deliberately
deferred, and FP_FAST_* macros are not applicable without optimized
function implementations.

Function implementations are added for all relevant pairs of formats
(including certain cases of a format and itself where more than one
type has that format).  The main implementations use round-to-odd, or
a trivial computation in the case where both formats are the same or
where the wider format is IBM long double (in which case we don't
attempt to be correctly rounding).  The sysdeps/ieee754/soft-fp
implementations use soft-fp, and are used automatically for
configurations without exceptions and rounding modes by virtue of
existing Implies files.  As previously discussed, optimized versions
for particular architectures are possible, but not included.

i386 gets a special version of f32xaddf64 to avoid problems with
double rounding (similar to the existing fdim version), since this
function must round just once without an intermediate rounding to long
double.  (No such special version is needed for any other function,
because the nontrivial functions use round-to-odd, which does the
intermediate computation with the rounding mode set to round-to-zero,
and double rounding is OK except in round-to-nearest mode, so is OK
for that intermediate round-to-zero computation.)  mul and div will
need slightly different special versions for i386 (using round-to-odd
on long double instead of precision control) because of the
possibility of inexact intermediate results in the subnormal range for
double.

To reduce duplication among the different function implementations,
math-narrow.h gets macros CHECK_NARROW_ADD, NARROW_ADD_ROUND_TO_ODD
and NARROW_ADD_TRIVIAL.

In the trivial cases and for any architecture-specific optimized
implementations, the overhead of the errno setting might be
significant, but I think that's best handled through compiler built-in
functions rather than providing separate no-errno versions in glibc
(and likewise there are no __*_finite entry points for these function
provided, __*_finite effectively being no-errno versions at present in
most cases).

Tested for x86_64 and x86, with both GCC 6 and GCC 7.  Tested for
mips64 (all three ABIs, both hard and soft float) and powerpc with GCC
7.  Tested with build-many-glibcs.py with both GCC 6 and GCC 7.

	* math/Makefile (libm-narrow-fns): Add add.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing add functions.
	* math/bits/mathcalls-narrow.h (add): Use __MATHCALL_NARROW .
	* math/gen-auto-libm-tests.c (test_functions): Add add.
	* math/math-narrow.h (CHECK_NARROW_ADD): New macro.
	(NARROW_ADD_ROUND_TO_ODD): Likewise.
	(NARROW_ADD_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__faddl): New
	macro.
	(__daddl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fadd and
	dadd.
	(CFLAGS-nldbl-dadd.c): New variable.
	(CFLAGS-nldbl-fadd.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_daddl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_daddl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fadd, faddl,
	daddl, fMaddfN, fMaddfNx, fMxaddfN and fMxaddfNx.
	* math/auto-libm-test-in: Add tests of add.
	* math/auto-libm-test-out-narrow-add: New generated file.
	* math/libm-test-narrow-add.inc: New file.
	* sysdeps/i386/fpu/s_f32xaddf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xaddf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fadd.c: Likewise.
	* sysdeps/ieee754/float128/s_f32addf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64addf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xaddf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_daddl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xaddf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_faddl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_daddl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_faddl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_daddl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_faddl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-dadd.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fadd.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_daddl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fadd.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_faddl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2018-02-10 02:08:43 +00:00
Andreas Schwab
128c43a2d6 LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 
The arguments of the LIBC_SLIBDIR_RTLDDIR macro are used both in unquoted
and single quoted context, so that neither shell nor makefile variable
references work.  Consistently put them in single quotes so that they can
refer to makefile variables.
 2018-01-25 17:20:28 +01:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Florian Weimer
bad7a0c81f copy_file_range: New function to copy file data 
The semantics are based on the Linux system call, but a very close
emulation in user space is provided.
 2017-12-22 10:55:40 +01:00
Joseph Myers
1f9055ce04 Add _Float32 function aliases. 
This patch concludes filling out TS 18661-3 support for different
types by adding *f32 function aliases of float functions to support
_Float32.  As with _Float64 and _Float32x, this is supported for all
glibc configurations.  As with the previous such patches there are
some x86 ulps updates because of inline functions present for float
but not for _Float32.  The patch also has the usual
bits/floatn-common.h update, symbol versions, ABI baselines updates,
test enablement and documentation.

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* bits/floatn-common.h (__HAVE_FLOAT32): Define to 1.
	* manual/math.texi (Mathematics): Document support for _Float32.
	* math/Makefile (test-types): Add float32.
	* math/Versions (GLIBC_2.27): Add _Float32 functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
 2017-12-07 00:48:31 +00:00
Joseph Myers
0d93b7fd7c Add _Float64, _Float32x function aliases. 
This patch continues filling out TS 18661-3 support by adding *f64 and
*f32x function aliases, supporting _Float64 and _Float32x, as aliases
for double functions.  These types are supported for all glibc
configurations.  The API corresponds exactly to that for _Float128 and
_Float64x.  _Float32 aliases to float functions remain to be added in
subsequent patches to complete this process (then there are a few
miscellaneous functions in TS 18661-3 to implement that aren't simply
versions of existing functions for new types).

The patch enables the feature in bits/floatn-common.h, adds symbol
versions and documentation with updates to ABI baselines, and arranges
for the libm functions for the new types to be tested.  As with the
_Float64x changes there are some x86 ulps updates because of header
inlines not used for the new types (and one other change to the
non-multiarch libm-test-ulps, which I suppose comes from using a
different compiler version / configuration from when it was last
regenerated).

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* bits/floatn-common.h (__HAVE_FLOAT64): Define to 1.
	(__HAVE_FLOAT32X): Likewise.
	* manual/math.texi (Mathematics): Document support for _Float64
	and _Float32x.
	* math/Makefile (test-types): Add float64 and float32x.
	* math/Versions (GLIBC_2.27): Add _Float64 and _Float32x
	functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
 2017-12-06 00:58:03 +00:00
Florian Weimer
446d22e91d Linux: Implement interfaces for memory protection keys 
This adds system call wrappers for pkey_alloc, pkey_free, pkey_mprotect,
and x86-64 implementations of pkey_get and pkey_set, which abstract over
the PKRU CPU register and hide the actual number of memory protection
keys supported by the CPU.  pkey_mprotect with a -1 key is implemented
using mprotect, so it will work even if the kernel does not support the
pkey_mprotect system call.

The system call wrapers use unsigned int instead of unsigned long for
parameters, so that no special treatment for x32 is needed.  The flags
argument is currently unused, and the access rights bit mask is limited
to two bits by the current PKRU register layout anyway.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2017-12-05 15:20:35 +01:00
Stefan Liebler
478593e637 S390: Fix backtrace in vdso functions. 
On s390, GDB fails to show the complete backtrace from within vdso functions.
The macro INTERNAL_VSYSCALL_CALL saves the return address in r14 to r10
before branching to the vdso function. The branch-instruction updates r14
in order to let the vdso function return. Then the original address in r14 is
restored from r10. Unfortunately, there are no cfi-rules and GDB fails.

Furthermore the call of the vdso function does not comply with the s390 ABI
as no stack-frame for the vdso-function is generated.

This patch removes the s390 specific macro INTERNAL_VSYSCALL_CALL
and the common implementation in sysdeps/unix/sysv/linux/sysdep-vdso.h is used.
Then the vdso function is called via function-pointer and GCC generates a
new stack-frame and emits all needed cfi-rules.

The defines CLOBBER_[0-6] are removed as they  were only used in macro
INTERNAL_VSYSCALL_CALL.

The macro INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK is not used on s390.
The only user is power. Thus it is removed from s390 sysdep.h.

ChangeLog:

	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(INTERNAL_VSYSCALL_CALL, CLOBBER_0, CLOBBER_1, CLOBBER_2,
	 CLOBBER_3, CLOBBER_4, CLOBBER_5, CLOBBER_6,
	INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK): Remove.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
 2017-12-04 16:40:13 +01:00
Florian Weimer
4bab02240e Implement the mlock2 function 
Fallback using mlock is provided if the flags argument is zero.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2017-11-27 17:14:29 +01:00
Joseph Myers
a23aa5b727 Add _Float64x function aliases. 
This patch continues filling out TS 18661-3 support by adding *f64x
function aliases on platforms with _Float64x support.  (It so happens
the set of such platforms is exactly the same as the set of platforms
with _Float128 support, although on x86_64, x86 and ia32 the _Float64x
format is Intel extended rather than binary128.)  The API provided
corresponds exactly to that provided for _Float128, mostly coming from
TS 18661-3.  As these functions always alias those for another type
(long double, _Float128 or both), __* function names are not provided,
as in other cases of alias types.

Given the preparation done in previous patches, this one just enables
the feature via Makeconfig and bits/floatn.h, adds symbol versions,
and updates documentation and ABI baselines.  The symbol versions are
present unconditionally as GLIBC_2.27 in the relevant Versions files,
as it's OK for those to specify versions for functions that may not be
present in some configurations; no additional complexity is needed
unless in future some configuration gains support for this type that
didn't have such support in 2.27.  The Makeconfig additions for ia64
and x86 aren't strictly needed, as those configurations also get
float64x-alias-fcts definitions from
sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given
that _Float64x is not _Float128 for those configurations.

A libm-test-ulps update for x86 is included.  This is because
bits/mathinline.h does not have _Float64x support added and for two
functions the use of out-of-line functions results in increased ulps
(ifloat64x shares ulps with ildouble / ifloat128 as appropriate).
Given that we'd like generally to eliminate bits/mathinline.h
optimizations, preferring to have such optimizations in GCC instead,
it seems reasonable not to add such support there for new types.  GCC
support for _FloatN / _FloatNx built-in functions is limited, but has
been improved in GCC 8, and at some point I hope the full set of libm
built-in functions in GCC, and other optimizations with
per-floating-type aspects, will be enabled for all _FloatN / _FloatNx
types.

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable.
	* sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/x86/Makeconfig: New file.
	* bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* bits/floatn.h (__HAVE_FLOAT64X): New macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X):
	Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* manual/math.texi (Mathematics): Document support for _Float64x.
	* math/Versions (GLIBC_2.27): Add _Float64x functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
 2017-11-27 14:16:47 +00:00
Florian Weimer
59d2cbb1fe Linux: Add memfd_create system call wrapper 
The system call is somewhat obscure because it is closely related
to file descriptor sealing.  However, it is also the recommended
way to create alias mappings, which is why it has more general use.

No emulation is provided.  Except for the name of the
/proc/self/fd links, it would be possible to implement an
approximation using O_TMPFILE and tmpfs, but this does not appear
to be worth the added complexity.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
 2017-11-23 10:00:40 +01:00
Stefan Liebler
8beba15d53 S390: Add cfi information for start routines in order to stop unwinding. 
GDB failed to detect the outermost frame while showing the backtrace
within a thread:
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Before this patch, the start routines like thread_start had no cfi information.
GDB is then using the prologue unwinder if no cfi information is available.
This unwinder tries to unwind r15 and stops e.g. if r15 was updated or
on some jump-instructions.

On older glibc-versions (before commit "Remove cached PID/TID in clone"
c579f48edb), the thread_start function used
such a jump-instruction and GDB did not fail with an error.

This patch adds cfi information for _start, thread_start and __makecontext_ret
and marks r14 as undefined which marks the frame as outermost frame and GDB
stops the backtrace. Also tested different gcc versions in order to test
_Unwind_Backtrace() in libgcc as this is used by backtrace() in glibc.

ChangeLog:

	* sysdeps/s390/s390-64/start.S (_start): Add cfi information for r14.
	* sysdeps/s390/s390-32/start.S: (_start): Likewise
	* sysdeps/unix/sysv/linux/s390/s390-64/clone.S
	(thread_start): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/clone.S
	(thread_start): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S
	(__makecontext_ret): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
	(__makecontext_ret): Likewise.
 2017-11-21 08:45:28 +01:00
H.J. Lu
8cb5295d3f Add jmp_buf-macros.h 
Verify that sizes, alignments and field offsets of jmp_buf as well as
sigjmp_buf are unchanged regardless how struct __jmp_buf_tag is defined.
Since jmp_buf is target specific, jmp_buf-macros.h is added for each
Linux target.  A new target must provides its own jmp_buf-macros.h.

TODO: Hurd needs to provide a jmp_buf-macros.h.

Tested with build-many-glibcs.py.

	* include/setjmp.h [!_ISOMAC]: Include <stddef.h> and
	<jmp_buf-macros.h>.
	[!_ISOMAC] (STR_HELPER): New.
	[!_ISOMAC] (STR): Likewise.
	[!_ISOMAC] (TEST_SIZE): Likewise.
	[!_ISOMAC] (TEST_ALIGN): Likewise.
	[!_ISOMAC] (TEST_OFFSET): Likewise.
	[!_ISOMAC] Add _Static_assert to check sizes, alignments and
	field offsets of jmp_buf as well as sigjmp_buf.
	* sysdeps/unix/sysv/linux/aarch64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/jmp_buf-macros.h: Likewise.
 2017-11-09 05:10:03 -08:00
Yury Norov
e8681faa01 Consolidate Linux sigpending() implementation 
ia64, s390-64, sparc64 and x86_64 host their own implementation of
sigpending() in corresponding files, but they are identical to generic
linux file despite few comments. This patch removes that files, so the
implementation of sigpending() is taken from sysdeps/unix/sysv/linux
for all ports.

Build-tested on x86_64.

	* sysdeps/unix/sysv/linux/ia64/sigpending.c: Remove file.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigpending.c: Likewise.

Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
 2017-10-31 17:49:11 -02:00
Joseph Myers
81325b12b1 Add _Float128 function aliases. 
This patch adds support for *f128 function aliases on platforms where
long double has the binary128 format (and thus GCC 7 provides the
_Float128 type with the same ABI as long double but as a distinct type
in terms of C type compatibility).  This is the same API as provided
in glibc 2.26 for powerpc64le / x86_64 / x86 / ia64 where _Float128
has a different format from long double, with the bulk of the API
coming from TS 18661-3.  All the functions alias the corresponding
long double functions, and __* function names are not provided since
those are only needed once for each floating-point format, not more
than once for different types with the same format (so for example,
-ffinite-math-only maps foof128 to __fool_finite, while type-generic
macros end up calling e.g. __issignalingl for _Float128 arguments on
such platforms).

The preparation for this feature was done in previous patches, so this
one just needs to add the relevant makefile and header definitions,
and update macro definitions of libm_alias_ldouble_other_r, to turn on
the feature, and update documentation and ABI baselines.

Tested (a) for x86_64, (b) for aarch64, (c) with build-many-glibcs.py
with both GCC 6 and GCC 7.

	* sysdeps/ieee754/ldbl-128/Makeconfig: New file.
	* sysdeps/ieee754/ldbl-128/bits/floatn.h: Likewise.
	* sysdeps/ieee754/ldbl-128/float128-abi.h: Likewise.
	* sysdeps/generic/libm-alias-ldouble.h: Include <bits/floatn.h>.
	[__HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128]
	(libm_alias_ldouble_other_r): Also create _Float128 alias.
	* sysdeps/ieee754/ldbl-opt/libm-alias-ldouble.h: Include
	<bits/floatn.h>.
	[__HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128]
	(libm_alias_ldouble_other_r): Also create _Float128 alias.
	* manual/math.texi (Mathematics): Document additional architecture
	support for _Float128.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
 2017-10-18 17:37:18 +00:00
Adhemerval Zanella
09c76a7409 Linux: Consolidate {RTLD_}SINGLE_THREAD_P definition 
Current GLIBC has two ways to implement the single thread optimization
on syscalls to avoid calling the cancellation path: either by using
global variables (__{libc,pthread}_multiple_thread) or by accessing
the TCB field (defined by TLS_MULTIPLE_THREADS_IN_TCB).  Both the
variables and the macros to acces its value are defined in the
architecture sysdep-cancel.h header.

This patch consolidates its definition on only one header,
sysdeps/unix/sysv/linux/sysdep-cancel.h, and adds a new define
(SINGLE_THREAD_BY_GLOBAL) which the architecture defines if it prefer
to use the global variables instead of the TCB field.  This is an
optimization, so if the architecture does not define it, the TCB
method will be used as default.

Checked on x86_64-linux-gnu and on a build with major touched
ABIs (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
hppa-linux-gnu, i686-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu,
mips-linux-gnu, mips64-linux-gnu, powerpc-linux-gnu,
powerpc64le-linux-gnu, s390-linux-gnu, s390x-linux-gnu, sh4-linux-gnu,
sparcv9-linux-gnu, sparc64-linux-gnu, tilegx-linux-gnu).

	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Remove file.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(SINGLE_THREAD_BY_GLOBAL): Define.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep.h
	(SINGLE_THREAD_BY_GLOBAL): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
	Likewise.
 2017-10-11 14:27:24 -03:00
Szabolcs Nagy
72d3d28108 New symbol version for logf, log2f and powf without SVID compat 
This patch changes the logf, log2f and powf error handling semantics
to only set errno accoring to POSIX rules. New symbol version is
introduced at GLIBC_2.27.

The old wrappers are kept for compat symbols.

ia64 needed assembly change to have the new and compat versioned
symbol map to the same function.

All linux libm abilists are updated.

	* math/Versions (logf): New libm symbol at GLIBC_2.27.
	(log2f): Likewise.
	(powf): Likewise.
	* math/w_log2f.c: New file.
	* math/w_logf.c: New file.
	* math/w_powf.c: New file.
	* math/w_log2f_compat.c (__log2f_compat): For compat symbol only.
	* math/w_logf_compat.c (__logf_compat): Likewise.
	* math/w_powf_compat.c (__powf_compat): Likewise.
	* sysdeps/ia64/fpu/e_log2f.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_logf.S: Likewise.
	* sysdeps/ia64/fpu/e_powf.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2017-10-02 14:38:03 +01:00
H.J. Lu
6a088436d4 Hide internal signal functions [BZ #18822] 
Hide internal signal functions to allow direct access within libc.so and
libc.a without using GOT nor PLT.

__GI___kill and __GI___sigaltstack are defined when syscalls.list is
used to generate them.  Otherwise libc_hidden_def is needed explicitly.

	[BZ #18822]
	* include/signal.h (__kill): Add libc_hidden_proto.
	(__sigblock): Likewise.
	(__sigprocmask): Likewise.
	(__sigaltstack): Likewise.
	* signal/kill.c (__kill): Add libc_hidden_def.
	* signal/sigblock.c (__sigblock): Likewise.
	* signal/sigprocmask.c (__sigprocmask): Likewise.
	* sysdeps/mach/hurd/kill.c (__kill): Likewise.
	* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
	* sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise.
	* sysdeps/posix/sigblock.c (__sigblock): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sigprocmask.c (__sigprocmask):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c
	(__sigprocmask): Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask):
	Likewise.
	* /sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
	(__sigprocmask): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask):
	Likewise.
 2017-10-01 16:04:41 -07:00
Adhemerval Zanella
ccf970c7a7 posix: Add compat glob symbol to not follow dangling symbols 
This patch follows commit 5554304f0 (posix: Allow glob to match dangling
symlinks [BZ #866]) by adding a compat symbol that follow previous
semantic of not following dangling symlinks and thus avoiding call
gl_lstat with GLOB_ALTDIRFUNC.

It avoids failure with old binaries that not set the alternate function
pointer for lstat (GNUmake for instance).  The following scenario, for
instance, fails with current GNUmake because glibc will access unitialized
memory when calling gl_lstat:

  $ cat src/t/t.c
  int main ()
  {
    return 0;
  }
  $ cat Makefile
  SRC = $(wildcard src/*/t.c)
  OBJ = $(patsubst src/%.c, obj/%.o, $(SRC))

  prog:           $(OBJ)
                  $(CC) $(CFLAGS) $(LDFLAGS) $(LIBS) $(OBJ) -o prog

  obj/%.o:        src/%.c
                  $(CC) $(CFLAGS) -c $< -o $@
  $ make

This works as expected with the patch applied.  Since it is for generic
ABI, default compat symbols are added with override for Linux due LFS.
Now we have two compat symbols for glob on Linux:

  1. sysdeps/unix/sysv/linux/oldglob.c which implements glob64 with
     the old dirent layout.  For this implementation I also set it to
     not follow dangling symlinks (which is the safest path).

  2. sysdeps/unix/sysv/linux/glob{64}-lstat-compat.c which implements
     the compat symbol for dangling symlinks.  As for generic glob,
     the implementation uses XSTAT_IS_XSTAT64 to define whether
     both __glob_lstat_compat and __glob64_lstat_compat should be
     different implementations.  For archictures that define
     XSTAT_IS_XSTAT64, __glob_lstat_compat is aliased to
     __glob64_lstat_compat.

  3. sysdeps/unix/sysv/linux/alpha/oldglob.c with a different glob_t
     layout.  As for 1. this patch changes it to not follow dangling
     symlinks.

The patch also bumps _GNU_GLOB_INTERFACE_VERSION to 2 to advertise the
new semantic.  On GNUmake, for instance, it will force to it use its
internal glob implementation instead and avoiding triggering the same
failure on builds against newer GLIBCs.

Checked on x86_64-linux-gnu and i686-linux-gnu.  I also checked
with a build against the major ABIs required to check for the abilist.

The changes should also work on gnulib (I run gnulib-tool.py check glob
and it shown no regressions).

	[BZ #22183]
	* include/gnu-versions.h (_GNU_GLOB_INTERFACE_VERSION): Increase
	version to 2.
	* posix/Makefile (routines): Add glob-lstat-compat and
	glob64-lstat-compat.
	* posix/Versions (GLIBC_2.27, glob, glob64): Add symbol version.
	* posix/glob-lstat-compat.c: New file.
	* posix/glob64-lstat-compat.c: Likewise.
	* posix/tst-glob_lstat_compat.c: Likewise.
	* sysdeps/unix/sysv/linux/glob-lstat-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/glob-lstat-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/glob64-lstat-compat.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/glob.c: Remove file.
	* posix/glob.c (glob_lstat): New function.
	(glob): Rename to __glob and add versioned symbol to 2.27.
	(glob_in_dir): Use glob_lstat.
	* posix/glob64.c (glob64): Add GLOB_ATTRIBUTE.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/glob.c (glob): Add versioned symbol for
	2.27.
	* sysdeps/unix/sysv/linux/glob64.c (glob64): Likewise.
	* sysdeps/unix/sysv/linux/oldglob.c (GLOB_NO_LSTAT): Define.
	* sysdeps/unix/sysv/linux/alpha/oldglob.c (__old_glob): Do not use
	gl_lstat on glob call.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add GLIBC_2.27 glob
	and glob64 symbols.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
 2017-09-25 18:04:16 -07:00
Szabolcs Nagy
f5f0f52651 New expf and exp2f version without SVID compat wrapper 
This patch changes the expf and exp2f error handling semantics to only
set errno accoring to POSIX rules. New symbol version is introduced at
GLIBC_2.27.

The old wrappers are kept for compat symbols.

Internal calls to __expf now get the new error semantics, this seems to
only affect sysdeps/i386/fpu/s_expm1f.S where the errno-only behaviour
should be correct.

ia64 needed assembly change to have the new and compat versioned symbol
map to the same function.

All linux libm abilists are updated.

	* math/Versions (expf): New libm symbol at GLIBC_2.27.
	(exp2f): Likewise.
	* math/w_exp2f.c: New file.
	* math/w_expf.c: New file.
	* math/w_exp2f_compat.c (__exp2f_compat): For compat symbol only.
	* math/w_expf_compat.c (__expf_compat): Likewise.
	* sysdeps/ia64/fpu/e_exp2f.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_expf.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2017-09-25 10:45:08 +01:00
Adhemerval Zanella
102dde842a Remove NO_CANCELLATION macro 
The NO_CANCELLATION macro is used currently on generic headers to
define non cancellable syscalls and on Linux fcntl to implement the non
cancellable variation.  Former should be single-handled by not-cancel.h
header and former could be simplified build both cancellable and non
cancellable for default objects and alias the non-cancellable to default
one for rtld ones (since Linux already support cancellation as default).

This patch thus removes the NO_CANCELLATION macro and its usage.  The
generic non cancellable fcntl is route to internal fcntl.

Checked on x86_64-linux-gnu and i686-linux-gnu.  Also checked with
a build again major ABIs.

	* sysdeps/generic/not-cancel.h (NO_CANCELLATION): Remove macro.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h
	(NO_CANCELLATION): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h
	(NO_CANCELLATION): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h
	(NO_CANCELLATION): Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (NO_CANCELLATION):
	Likewise
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (NO_CANCELLATION):
	Likewise.
	* sysdeps/unix/sysv/linux/not-cancel.h (__fcntl_nocancel): Add
	hidden prototype.
	* sysdeps/unix/sysv/linux/fcntl.c (__fcntl_nocancel): Define only
	for !IS_IN (rtld) and remove NO_CANCELLATION usage.
 2017-08-31 16:10:34 -03:00
Adhemerval Zanella
ebd6f0076a Remove cancellation support for syscall generation 
This patch removes the cancellation mark from the auto-generation syscall
script.  Now all the cancellable syscalls are done throught C code using
the SYSCALL_CANCEL macro.  It simplifies the assembly required to each
architecture port, since the SYSCALL_CANCEL uses the already defined
INLINE_SYSCALL macros, and allows a more straigh fix on cancellation
machanism (since no more specific assembly fixes will be required).

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.A
Also with build-many-glibc.py with remaning touched architectures.

	* sysdeps/unix/make-syscalls.sh: Remove cancellable tagging for
	syscall definitions.
	* sysdeps/unix/syscall-template.S (SYSCALL_CANCELLABLE): Remove
	definition.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libpthread)] (__local_disable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	(CENABLE): Likewise.
	(CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO): Remove
	defintion.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h (PSEUDO):
	Remove definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	(SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Remove file.
	* sysdeps/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Remove file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
 2017-08-24 14:58:35 -03:00
Christian Borntraeger
35810f5ccf s390: optimize syscall function 
Since kernel 2.6.0 all Linux version accept the system call number
in register 1 for svc 0. There is no need to have special handling
that uses EX for system calls < 256. This will simplify and speed
up that code.

A microbenchmark doing "syscall(__NR_getpid);" in a loops gets faster
by ~12%.

        * sysdeps/unix/sysv/linux/s390/s390-32/syscall.S: Simplify
        code by always using SVC 0 instead of EX.
        * sysdeps/unix/sysv/linux/s390/s390-64/syscall.S: Likewise.
 2017-06-19 10:59:40 +02:00
Adhemerval Zanella
52bd938169 posix: Implement preadv2 and pwritev2 
This patch adds support of preadv2 and pwritev2 which are similar to
preadv/pwritev but with an extra flag argument.  As for preadv/pwritev
both interfaces are added a non-standard GNU API.

For default 'posix' implementation trying to emulate the Linux supported
flags is troublesome:

   * We can not temporary change the file state of the O_DSYNC and O_SYNC
     flags to emulate RWF_{D}SYNC (attempts to change the state of using
     fcntl are silently ignored).

   * IOCB_HIPRI requires the file opened in O_DIRECT and uses an internal
     semantic not provided by any other flag (O_NONBLOCK for instance).

So default sysdeps/posix implementations fails with EOPNOTSUPP for any non
supported flag (which are none currently) calls generic preadv/pwritev.
Basically this implementation supports only preadv2 called as preadv (with
flags sets to 0).

The Linux one uses the preadv2/pwritev2 syscall if defined, otherwise it
call preadv/writev.  Instead of using the previous __ASSUME_* to
unconditionally issue the syscall (and avoid building the fallback routine),
it call pread/write if the preadv2/pwritev2 syscalls fails.  The idea
is just avoid adding another __ASSUME_* and checking each architecture
on every kernel bump and simplify code conditionals.

Checked on x86_64-linux-gnu and on i686-linux-gnu and a check with
run-built-tests=no on aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu, mips{64,64n32}-linux-gnu,
nios2-linux-gnu, powerpc{64,64le}-linux-gnu, s390{x}-linux-gnu,
sparc{64,v9}-linux-gnu, tile{gx,pro}-linux-gnu, and sh4-linux-gnu (all using
gcc 6.3).

	* NEWS: Add note about pwritev2 and preadv2 inclusion.
	* misc/Makefile (routines): Add preadv2, preadv64v2, pwritev2, and
	pwritev64v2.
	(tests): Add tst-preadvwritev2 and tst-preadvwritev64v2.
	* misc/Versions (GLIBC_2.26): Add preadv2, preadv64v2, pwritev2, and
	pwritev64v2.
	* misc/preadv2.c: New file.
	* misc/preadv64v2.c: Likewise.
	* misc/pwritev2.c: Likewise.
	* misc/pwritev64v2.c: Likewise.
	* misc/tst-preadvwritev2.c: Likewise.
	* misc/tst-preadvwritev64v2.c: Likewise.
	* manual/llio.texi: Add preadv2 and pwritev2 documentation.
	* misc/sys/uio.h [__USE_GNU && !__USE_FILE_OFFSET64] (preadv2): New
	prototype.
	[__USE_GNU && !__USE_FILE_OFFSET64] (pwritev2):	Likewise.
	[__USE_GNU && __USE_FILE_OFFSET64] (preadv64v2): Likewise.
	[__USE_GNU && __USE_FILE_OFFSET64] (pwritev64v2): Likewise.
	* misc/tst-preadvwritev-common.c (PREADV): Define if not defined.
	(PWRITEV): Likewise.
	(do_test_with_offset): Use PREADV and PWRITEV macros and check for
	ENOSYS.
	* nptl/tst-cancel4.c (tf_pwritev2): New test.
	(tf_preadv2): Likewise.
	(tf_fsync): Add tf_pwritev2 and tf_preadv2.
	* sysdeps/posix/preadv2.c: Likewise.
	* sysdeps/posix/preadv64v2.c: Likewise.
	* sysdeps/posix/pwritev2.c: Likewise.
	* sysdeps/posix/pwritev64v2.c: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Add comment for syscall
	support in kernel.
	* sysdeps/unix/sysv/linux/preadv2.c: Likewise.
	* sysdeps/unix/sysv/linux/preadv64v2.c: Likewise.
	* sysdeps/unix/sysv/linux/pwritev2.c: Likewise.
	* sysdeps/unix/sysv/linux/pwritev64v2.c: Likewise.
	* sysdeps/unix/sysv/linux/preadv.c (preadv): Add libc_hidden_def.
	* sysdeps/unix/sysv/linux/preadv64.c (preadv64): Likewise.
	* sysdeps/unix/sysv/linux/pwritev.c (pwritev): Likewise.
	* sysdeps/unix/sysv/linux/pwritev64.c (pwritev64): Likewise.
	* sysdeps/unix/sysv/linux/bits/uio.h: Add supported preadv2/pwritev2
	support flags on Linux.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist (GLIBC_2.26): Add
	preadv2, preadv64v2, pwritev2, pwritev64v2.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
	(GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
	(GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
	(GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist (GLIBC_2.26): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/sysv/linux/tile/tilegx/tilegx32/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/sysv/linux/tile/tilegx/tilegx64/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist (GLIBC_2.26):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist (GLIBC_2.26):
	Likewise.
 2017-05-31 17:35:46 -03:00
Dennis Wölfing
2e0bbbfbf9 Add reallocarray function 
The reallocarray function is an extension from OpenBSD.  It is an
integer-overflow-safe replacement for realloc(p, X*Y) and
malloc(X*Y) (realloc(NULL, X*Y)).  It can therefore help in preventing
certain security issues in code.

This is an updated version of a patch originally submitted by Rüdiger
Sonderfeld in May 2014 [1].

Checked on i686-linux-gnu and x86_64-linux-gnu.

[1] <https://sourceware.org/ml/libc-alpha/2014-05/msg00481.html>.

2017-05-30  Dennis Wölfing  <denniswoelfing@gmx.de>
            Rüdiger Sonderfeld  <ruediger@c-plusplus.de>

	* include/stdlib.h (__libc_reallocarray): New declaration.
	* malloc/Makefile (routines): Add reallocarray.
	(tests): Add tst-reallocarray.c.
	* malloc/Versions: Add reallocarray and __libc_reallocarray.
	* malloc/malloc-internal.h (check_mul_overflow_size_t): New inline
	function.
	* malloc/malloc.h (reallocarray): New declaration.
	* stdlib/stdlib.h (reallocarray): Likewise.
	* malloc/reallocarray.c: New file.
	* malloc/tst-reallocarray.c: New test file.
	* manual/memory.texi: Document reallocarray.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add reallocarray.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
 2017-05-30 18:27:57 -03:00
Adhemerval Zanella
158d5fa0e1 Consolidate Linux mmap implementation (BZ#21270) 
This patch consolidates all Linux mmap implementations on default
sysdeps/unix/sysv/linux/mmap{64}.c one.  To accomodate all required
architecture specific requeriments a new internal header is created
(mmap_internal.h) where each architecture add its specific code
requirements.  Currently only x86_64 (to define MMAP_PREPARE to add
MAP_32BITS), s390 (which have a different kernel ABI for mmap), m68k
(which have variable minimum page sizes), and MIPS n32 (which zero
extend the offset to handle negative one correctly) redefine the new
header.

The patch also fixes BZ#21270 where default mmap64 on architectures
which uses mmap2 silent truncates large offsets value (larger than
1 << (page shift + 8 * sizeof (off_t)) or 1<<44 on architectures with
4096 bytes page size).  The new consolidate implementation returns
EINVAL as allowed by POSIX.

It also adds a tests for on current tst-mmap-offset one.  I have run
a full make check on x86_64, x86_64-32, i686, aarch64, armhf, powerpc,
powerpc64le, sparc64, and sparcv9 without any regressions.  I also ran
some basic tests (tst-mmap-offset) on sh4, m68k, and on qemu simulated
MIPS32 and MIPS64.

	[BZ #21270]
	* posix/tst-mmap-offset.c (do_prepare): New function.
	(do_test): Rename to do_test_bz18877 and use FAIL_RET.
	(do_test_bz21270): New function.
	* sysdeps/unix/sysv/linux/aarch64/mmap.c: Remove file.
	* sysdeps/unix/sysv/linux/arm/mmap.c: Remove file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/hppa/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/mmap64.c: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/mmap64.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/mmap64.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/mmap_internal.h: New file.
	* sysdeps/unix/sysv/linux/m68k/mmap_internal.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/mmap_internal.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/mmap_internal.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/mmap_internal.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list: Remove mmap
	from auto-generation list.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mmap.c: New file.
	* sysdeps/unix/sysv/linux/mmap64.c (__mmap64): Add check for invalid
	offsets and support for mmap2 syscall.
 2017-04-12 11:04:28 -03:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Joseph Myers
423c2b9d08 Add fromfp functions. 
TS 18661-1 defines fromfp functions (fromfp, fromfpx, ufromfp,
ufromfpx, and float and long double variants) to convert from
floating-point to an integer type with any signedness and any given
width up to that of intmax_t, in any of the five IEEE rounding modes
(the usual four for binary floating point, plus rounding to nearest
with ties rounding away from zero), with control of whether in-range
non-integer values should result in the "inexact" exception being
raised.  This patch implements these functions for glibc.

These implementations are (apart from raising exceptions) pure integer
implementations; it's entirely possible optimized versions could be
devised for some architectures.  A common math/fromfp.h header
provides various common helper code that can readily be shared between
the implementations for different types.  For each type, the bulk of
the implementation is also shared between the four functions, with
wrappers that define UNSIGNED and INEXACT macros appropriately before
including the main implementation.

As the functions return intmax_t and uintmax_t without math.h being
allowed to expose those typedef names, they are declared using
__intmax_t and __uintmax_t as obtained from <bits/types.h>.

The FP_INT_* rounding direction macros are defined as ascending
integers in the order the names are listed in the TS; I see no
significant value in allowing architectures to vary the values of
them.

The libm-test machinery is duly adapted to handle unsigned int
arguments, and intmax_t and uintmax_t results.  Because each test
input is generally tested for four functions, five rounding modes and
several different widths, the libm-test.inc additions are very large.
Thus, the diffs in the body of this message exclude the libm-test.inc
changes, with the full patch being attached gzipped.  The bulk of the
new tests were generated (expanded from a test input plus rounding
results and information about where it lies in the relevant interval
between integers, to libm-test tests for all relevant combinations of
function, rounding direction and width) by a script that's included in
the patch as math/gen-fromfp-tests.py (input data
math/gen-fromfp-tests-inputs); as an ad hoc script that's not really
expected to be rerun, it's not very polished, but it's at least
plausibly useful for adding any further tests for these functions in
future.  I may split the libm-test tests up by function in future (so
both libm-test.inc and auto-libm-test-out are split into separate
files, and the tests for each function are also built and run
separately), but not for 2.25.

For no obvious reason, adding tgmath tests for the new functions
resulted in -Wuninitialized errors from test-tgmath.c about the
variable i being used uninitialized.  Those errors were correct - the
variable is read by the frexp version in test-tgmath.c (where real
frexp would write through that pointer instead of reading it) - but I
don't know why this patch would result in the pre-existing issue being
newly detected.  The patch initializes the variable to avoid those
errors.

With these changes, glibc 2.25 should have all the library features
from TS 18661-1 other than the functions that round result to narrower
type (and constant rounding directions, but I'm considering those
mainly a compiler feature not a library one).

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(fromfp): New declaration.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise.
	* math/tgmath.h (__TGMATH_TERNARY_FIRST_REAL_RET_ONLY): New macro.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfp): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise.
	* math/math.h: Include <bits/types.h>.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_INT_UPWARD): New enum
	constant and macro.
	(FP_INT_DOWNWARD): Likewise.
	(FP_INT_TOWARDZERO): Likewise.
	(FP_INT_TONEARESTFROMZERO): Likewise.
	(FP_INT_TONEAREST): Likewise.
	* math/Versions (fromfp): New libm symbol at version GLIBC_2.25.
	(fromfpf): Likewise.
	(fromfpl): Likewise.
	(ufromfp): Likewise.
	(ufromfpf): Likewise.
	(ufromfpl): Likewise.
	(fromfpx): Likewise.
	(fromfpxf): Likewise.
	(fromfpxl): Likewise.
	(ufromfpx): Likewise.
	(ufromfpxf): Likewise.
	(ufromfpxl): Likewise.
	* math/Makefile (libm-calls): Add s_fromfpF, s_ufromfpF,
	s_fromfpxF and s_ufromfpxF.
	* math/gen-fromfp-tests.py: New file.
	* math/gen-fromfp-tests-inputs: Likewise.
	* math/libm-test.inc: Include <stdint.h>
	(check_intmax_t): New function.
	(check_uintmax_t): Likewise.
	(struct test_fiu_M_data): New type.
	(struct test_fiu_U_data): Likewise.
	(RUN_TEST_fiu_M): New macro.
	(RUN_TEST_LOOP_fiu_M): Likewise.
	(RUN_TEST_fiu_U): Likewise.
	(RUN_TEST_LOOP_fiu_U): Likewise.
	(fromfp_test_data): New array.
	(fromfp_test): New function.
	(fromfpx_test_data): New array.
	(fromfpx_test): New function.
	(ufromfp_test_data): New array.
	(ufromfp_test): New function.
	(ufromfpx_test_data): New array.
	(ufromfpx_test): New function.
	(main): Call fromfp_test, fromfpx_test, ufromfp_test and
	ufromfpx_test.
	* math/gen-libm-test.pl (parse_args): Handle u, M and U descriptor
	characters.
	* math/test-tgmath-ret.c: Include <stdint.h>.
	(rm): New variable.
	(width): Likewise.
	(CHECK_RET_CONST_TYPE): Take extra arguments and pass them to
	called function.
	(CHECK_RET_CONST_FLOAT): Take extra arguments and pass them to
	CHECK_RET_CONST_TYPE.
	(CHECK_RET_CONST_DOUBLE): Likewise.
	(CHECK_RET_CONST_LDOUBLE): Likewise.
	(CHECK_RET_CONST): Take extra arguments and pass them to calls
	macros.
	(fromfp): New CHECK_RET_CONST call.
	(ufromfp): Likewise.
	(fromfpx): Likewise.
	(ufromfpx): Likewise.
	(do_test): Call check_return_fromfp, check_return_ufromfp,
	check_return_fromfpx and check_return_ufromfpx.
	* math/test-tgmath.c: Include <stdint.h>
	(NCALLS): Increase to 138.
	(F(compile_test)): Initialize i.  Call fromfp functions.
	(F(fromfp)): New function.
	(F(fromfpx)): Likewise.
	(F(ufromfp)): Likewise.
	(F(ufromfpx)): Likewise.
	* manual/arith.texi (Rounding Functions): Document FP_INT_UPWARD,
	FP_INT_DOWNWARD, FP_INT_TOWARDZERO, FP_INT_TONEARESTFROMZERO,
	FP_INT_TONEAREST, fromfp, fromfpf, fromfpl, ufromfp, ufromfpf,
	ufromfpl, fromfpx, fromfpxf, fromfpxl, ufromfpx, ufromfpxf and
	ufromfpxl.
	* manual/libm-err-tab.pl (@all_functions): Add fromfp, fromfpx,
	ufromfp and ufromfpx.
	* math/fromfp.h: New file.
	* sysdeps/ieee754/dbl-64/s_fromfp.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fromfp_main.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fromfpx.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_ufromfp.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_ufromfpx.c: Likewise.
	* sysdeps/ieee754/flt-32/s_fromfpf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_fromfpf_main.c: Likewise.
	* sysdeps/ieee754/flt-32/s_fromfpxf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_ufromfpf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_ufromfpxf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fromfpl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ufromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ufromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fromfpl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ufromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ufromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fromfpl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ufromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ufromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fromfp,
	ufromfp, fromfpx and ufromfpx.
	(CFLAGS-nldbl-fromfp.c): New variable.
	(CFLAGS-nldbl-fromfpx.c): Likewise.
	(CFLAGS-nldbl-ufromfp.c): Likewise.
	(CFLAGS-nldbl-ufromfpx.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h: Include <stdint.h>.
	* sysdeps/ieee754/ldbl-opt/nldbl-fromfp.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-fromfpx.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ufromfp.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ufromfpx.c: Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-12-31 00:40:59 +00:00
Adhemerval Zanella
50a6b4e0e4 Use shmget syscall for linux implementation 
this patch add a direct call to shmget syscall if it is supported by
kernel features.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmget): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmget):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmget):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/shmget.c (shmget): Use shmget syscall if it
	is defined.
 2016-12-28 20:31:05 -02:00
Adhemerval Zanella
214f017fdf Use shmdt syscall for linux implementation 
this patch add a direct call to shmdt syscall if it is supported by
kernel features.

hecked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmdt): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmdt):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmdt):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/shmdt.c (shmdt): Use shmdt syscall if it is
	defined.
 2016-12-28 20:31:05 -02:00
Adhemerval Zanella
e01f79e412 Consolidate Linux shmctl implementation 
This patch consolidates the shmctl Linux implementation in only
one default file, sysdeps/unix/sysv/linux/shmctl.c.  If tries to use
the direct syscall if it is supported, otherwise will use the old ipc
multiplex mechanism.

The patch also simplify header inclusion and reorganize internal
compat symbol to be built only if old ipc is defined.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove
	oldshmctl.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmctl): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (shmctl): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (shmctl): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmctl): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmctl): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmctl): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmctl):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmctl):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmctl): Likewise.
	* sysdeps/unix/sysv/linux/alpha/shmctl.c: Remove file.
	* sysdeps/unix/sysv/linux/arm/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/shmctl.c: Use default
	implementation.
	* sysdeps/unix/sysv/linux/shmctl.c (__new_shmctl): Use shmctl syscall
	if it is defined.
 2016-12-28 20:31:05 -02:00
Adhemerval Zanella
8232e7d209 Use shmat syscall for Linux implementation 
This patch add a direct call to shmat syscall if it is supported by
kernel features.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmat): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (shmat): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (shmat): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmat): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmat): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmat): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmat):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmat):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmat): Likewise.
	* sysdeps/unix/sysv/linux/alpha/kernel-features.h (__NR_shmat):
	Define to __NR_osf_shmat.
	* sysdeps/unix/sysv/linux/shmat.c (shmat): Use shmat syscall if it is
	defined.
 2016-12-28 20:31:05 -02:00
Adhemerval Zanella
0f97184020 Use semop syscall for Linux implementation 
This patch add a direct call to semop syscall if it is supported by
kernel headers.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (semop): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semop):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semop):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/semop.c (semop): Use semop syscall if it is
	defined.
 2016-12-28 20:31:04 -02:00
Adhemerval Zanella
d29f6bcdcc Use semget syscall for Linux implementation 
This patch add a direct call to semget syscall if it is supported by
kernel features.

hecked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (semget): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semget):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semget):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/semget.c (semget): Use semget syscall
	if it is defined.
 2016-12-28 20:31:04 -02:00
Adhemerval Zanella
40c0a78068 Consolidate Linux semctl implementation 
This patch consolidates the semctl Linux implementation in only
one default file, sysdeps/unix/sysv/linux/semctl.c.  If tries to use
the direct syscall if it is supported, otherwise will use the old ipc
multiplex mechanism.

The patch also simplify header inclusion and reorganize internal
compat symbol to be built only if old ipc is defined.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove
	oldsemctl.
	* sysdeps/unix/sysv/linux/alpha/semctl.c: Remove file.
	* sysdeps/unix/sysv/linux/arm/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/semctl.c: Use defaulf
	implementation.
	* sysdeps/unix/sysv/linux/semctl.c (__new_semctl): Use semctl
	syscall if it is defined.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (semctl): Remove.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list (semctl): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (semctl): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (semctl): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semctl):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semctl): Likewise.
 2016-12-28 20:31:04 -02:00
Adhemerval Zanella
2182a151a7 Use msgget syscall for Linux implementation 
This patch add a direct call to msgget syscall if it is supported by
kernel features.

hecked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (msgget): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgget):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgget):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/msgget.c (msgget): Use msgget syscall if
	define.
 2016-12-28 20:28:56 -02:00
Adhemerval Zanella
692fe43ae2 Use msgsnd syscall for Linux implementation 
This patch add a direct call to msgsnd syscall if it is supported by
kernel features.

hecked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (msgsnd): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (msgsnd): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (msgsnd): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (msgsnd): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (msgsnd): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgsnd): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgsnd):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgsnd):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgsnd): Likewise.
	* sysdeps/unix/sysv/linux/msgsnd.c (__libc_msgsnd): Use msgsnd syscall
	if defined.
 2016-12-28 20:28:56 -02:00
Adhemerval Zanella
dee23189ae Consolidate Linux msgrcv implementation 
This patch consolidates the msgrcv Linux implementation in only
one default file, sysdeps/unix/sysv/linux/msgrcv.c.  If tries to use
the direct syscall if it is supported, otherwise will use the old ipc
multiplex mechanism.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (msgctl): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgctl):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgctl): Likewise,
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgctl):
	Likewise.
	* sysdeps/unix/sysv/linux/msgrcv.c (__libc_msgrcv): Use msgrcv syscall
	if defined.
	* sysdeps/unix/sysv/linux/sparc/sparc64/msgrcv.c: Remove file.
 2016-12-28 20:28:56 -02:00
Adhemerval Zanella
356c0aabd0 Consolidate Linux msgctl implementation 
This patch consolidates the msgctl Linux implementation in only
one default file, sysdeps/unix/sysv/linux/msgctl.c.  If tries to use
the direct syscall if it is supported, otherwise will use the old ipc
multiplex mechanism.

The patch also simplify header inclusion and reorganize internal
compat symbol to be built only if old ipc is defined.

Checked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove
	oldmsgctl.
	* sysdeps/unix/sysv/linux/alpha/msgctl.c: Remove file.
	* sysdeps/unix/sysv/linux/arm/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list (oldmsgctl): Remove.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgctl):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgctl): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/msgctl.c: Use default
	implementation.
	* sysdeps/unix/sysv/linux/msgctl.c (__new_msgctl): Use msgctl syscall
	if defined.
 2016-12-28 20:28:56 -02:00
Joseph Myers
41c67149b9 Add roundeven, roundevenf, roundevenl. 
TS 18661-1 defines roundeven functions that round a floating-point
number to the nearest integer, in that floating-point type, with ties
rounding to even (whereas the round functions round ties away from
zero).  As with other such functions, they raise no exceptions apart
from "invalid" for signaling NaNs.  There was a previous user request
for this functionality in glibc in
<https://sourceware.org/ml/libc-help/2015-02/msg00005.html>.

This patch implements these functions for glibc.  The implementations
use integer bit-manipulation (or roundeven on the high and low parts,
in the IBM long double case).  It's possible that there may be faster
approaches on some architectures (in particular, on AArch64 the frintn
instruction should do exactly what's required); I'll leave it to
architecture maintainers or others interested to implement such
architecture-specific versions if desired.  (Where architectures have
instructions to round to nearest integer in the current rounding mode,
implementations saving and restoring the rounding mode - and dealing
with exceptions if those instructions generate "inexact" - are also
possible, though their performance depends on the cost of manipulating
exceptions / rounding mode state.)

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(roundeven): New declaration.
	* math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (roundeven): New
	macro.
	* math/Versions (roundeven): New libm symbol at version
	GLIBC_2.25.
	(roundevenf): Likewise.
	(roundevenl): Likewise.
	* math/Makefile (libm-calls): Add s_roundevenF.
	* math/libm-test.inc (roundeven_test_data): New array.
	(roundeven_test): New function.
	(main): Call roundeven_test.
	* math/test-tgmath.c (NCALLS): Increase to 134.
	(F(compile_test)): Call roundeven.
	(F(roundeven)): New function.
	* manual/arith.texi (Rounding Functions): Document roundeven,
	roundevenf and roundevenl.
	* manual/libm-err-tab.pl (@all_functions): Add roundeven.
	* include/math.h (roundeven): Use libm_hidden_proto.
	* sysdeps/ieee754/dbl-64/s_roundeven.c: New file.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_roundeven.c: Likewise.
	* sysdeps/ieee754/flt-32/s_roundevenf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_roundevenl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_roundevenl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_roundevenl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
	roundeven.
	(CFLAGS-nldbl-roundeven.c): New variable.
	* sysdeps/ieee754/ldbl-opt/nldbl-roundeven.c: New file.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-12-21 01:48:27 +00:00
Joseph Myers
525f803984 Add fmaxmag, fminmag functions. 
TS 18661-1 defines fmaxmag and fminmag functions that return the
argument with maximum / minimum magnitude (acting like fmax / fmin if
the arguments have the same magnitude or either argument is a NaN).
These correspond to the IEEE 754-2008 operations maxNumMag and
minNumMag.  This patch implements these functions for glibc.  They are
implemented with type-generic templates.  Tests are based on those for
fmax and fmin.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(fmaxmag): New declaration.
	(fminmag): Likewise.
	* math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (fmaxmag): New
	macro.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fminmag): Likewise.
	* math/Versions (fmaxmag): New libm symbol at version GLIBC_2.25.
	(fmaxmagf): Likewise.
	(fmaxmagl): Likewise.
	(fminmag): Likewise.
	(fminmagf): Likewise.
	(fminmagl): Likewise.
	* math/Makefile (gen-libm-calls): Add s_fmaxmagF and s_fminmagF.
	* math/s_fmaxmag_template.c: New file.
	* math/s_fminmag_template.c: Likewise.
	* math/libm-test.inc (fmaxmag_test_data): New array.
	(fmaxmag_test): New function.
	(fminmag_test_data): New array.
	(fminmag_test): New function.
	(main): Call fmaxmag_test and fminmag_test.
	* math/test-tgmath.c (NCALLS): Increase to 132.
	(F(compile_test)): Call fmaxmag and fminmag.
	(F(fminmag)): New function.
	(F(fmaxmag)): Likewise.
	* manual/arith.texi (Misc FP Arithmetic): Document fminmag,
	fminmagf, fminmagl, fmaxmag, fmaxmagf and fmaxmagl.
	* manual/libm-err-tab.pl (@all_functions): Add fmaxmag and
	fminmag.
	* sysdeps/ieee754/ldbl-opt/nldbl-fmaxmag.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-fminmag.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/s_fmaxmagl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/s_fminmagl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fmaxmag
	and fminmag.
	(CFLAGS-nldbl-fmaxmag.c): New variable.
	(CFLAGS-nldbl-fminmag.c): Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-12-20 00:46:53 +00:00
Zack Weinberg
ea1bd74def New string function explicit_bzero (from OpenBSD). 
explicit_bzero(s, n) is the same as memset(s, 0, n), except that the
compiler is not allowed to delete a call to explicit_bzero even if the
memory pointed to by 's' is dead after the call.  Right now, this effect
is achieved externally by having explicit_bzero be a function whose
semantics are unknown to the compiler, and internally, with a no-op
asm statement that clobbers memory.  This does mean that small
explicit_bzero operations cannot be expanded inline as small memset
operations can, but on the other hand, small memset operations do get
deleted by the compiler.  Hopefully full compiler support for
explicit_bzero will happen relatively soon.

There are two new tests: test-explicit_bzero.c verifies the
visible semantics in the same way as the existing test-bzero.c,
and tst-xbzero-opt.c verifies the not-being-optimized-out property.
The latter is conceptually based on a test written by Matthew Dempsky
for the OpenBSD regression suite.

The crypt() implementation has an immediate use for this new feature.
We avoid having to add a GLIBC_PRIVATE alias for explicit_bzero
by running all of libcrypt's calls through the fortified variant,
__explicit_bzero_chk, which is in the impl namespace anyway.  Currently
I'm not aware of anything in libc proper that needs this, but the
glue is all in place if it does become necessary.  The legacy DES
implementation wasn't bothering to clear its buffers, so I added that,
mostly for consistency's sake.

	* string/explicit_bzero.c: New routine.
	* string/test-explicit_bzero.c, string/tst-xbzero-opt.c: New tests.
	* string/Makefile (routines, strop-tests, tests): Add them.
	* string/test-memset.c: Add ifdeffage for testing explicit_bzero.
	* string/string.h [__USE_MISC]: Declare explicit_bzero.

	* debug/explicit_bzero_chk.c: New routine.
	* debug/Makefile (routines): Add it.
	* debug/tst-chk1.c: Test fortification of explicit_bzero.
	* string/bits/string3.h: Fortify explicit_bzero.

	* manual/string.texi: Document explicit_bzero.
	* NEWS: Mention addition of explicit_bzero.

	* crypt/crypt-entry.c (__crypt_r): Clear key-dependent intermediate
	data before returning, using explicit_bzero.
	* crypt/md5-crypt.c (__md5_crypt_r): Likewise.
	* crypt/sha256-crypt.c (__sha256_crypt_r): Likewise.
	* crypt/sha512-crypt.c (__sha512_crypt_r): Likewise.

	* include/string.h: Redirect internal uses of explicit_bzero
	to __explicit_bzero_chk[_internal].
	* string/Versions [GLIBC_2.25]: Add explicit_bzero.
	* debug/Versions [GLIBC_2.25]: Add __explicit_bzero_chk.
	* sysdeps/arm/nacl/libc.abilist
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist
	* sysdeps/unix/sysv/linux/alpha/libc.abilist
	* sysdeps/unix/sysv/linux/arm/libc.abilist
	* sysdeps/unix/sysv/linux/hppa/libc.abilist
	* sysdeps/unix/sysv/linux/i386/libc.abilist
	* sysdeps/unix/sysv/linux/ia64/libc.abilist
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
	* sysdeps/unix/sysv/linux/nios2/libc.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
	* sysdeps/unix/sysv/linux/sh/libc.abilist
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist:
	Add entries for explicit_bzero and __explicit_bzero_chk.
 2016-12-16 16:21:54 -05:00
Florian Weimer
92dcaa3e2f Add getentropy, getrandom, <sys/random.h> [BZ #17252] 2016-12-12 17:28:04 +01:00
Joseph Myers
55a38f8236 Add llogb, llogbf, llogbl. 
TS 18661-1 defines llogb functions that are like ilogb except that
they return long int instead of int.  Corresponding FP_LLOGB* macros
are defined, whose values are required to have the obvious
correspondence to those of the FP_ILOGB* macros.

This patch implements these functions and macros for glibc.  llogb
uses the type-generic infrastructure, with an implementation similar
to the wrapper for ilogb but with additional conversion from FP_ILOGB*
to FP_LLOGB*; this approach avoids needing to modify or duplicate any
of the architecture-specific ilogb implementations.  Tests are also
based on those for ilogb.

Ideally the llogb functions would alias the ilogb ones when long is
32-bit, but such aliasing requires the associated header declarations
of the different-type alias to be hidden, typically by defining macros
before including the header (see e.g. how
sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c defines lround to
__hidden_lround before including <math.h>).  The infrastructure for
type-generic function implementations does not support defining such
macros at present (since C code can't define a macro whose name is
determined by other macros).  So this patch leaves them as separate
functions (similar to e.g. scalbln and scalbn being separate in such a
case as well), but with the remapping of FP_ILOGB* to FP_LLOGB*
conditioned out in the case where it would be the identity map.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (llogb):
	New declaration.
	* math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (llogb): New
	macro.
	* math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (__FP_LONG_MAX):
	New macro.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_LLOGB0): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_LLOGBNAN): Likewise.
	* math/Versions (llogb): New libm symbol at version GLIBC_2.25.
	(llogbf): Likewise.
	(llogbl): Likewise.
	* math/Makefile (gen-libm-calls): Add w_llogbF.
	(tests): Add test-fp-llogb-constants.
	* math/w_llogb_template.c: New file.  Based on
	math/w_ilogb_template.c.
	* math/libm-test.inc (llogb_test_data): New array.
	(llogb_test): New function.
	(main): Call llogb_test.
	* math/test-fp-llogb-constants.c: New file.  Based on
	math/test-fp-ilogb-constants.c.
	* math/test-tgmath-ret.c (llogb): New CHECK_RET_CONST call.
	(do_test): Call check_return_llogb.
	* math/test-tgmath.c (NCALLS): Increase to 126.
	(F(compile_test)): Call llogb.
	(F(llogb)): New function.
	* manual/math.texi (Exponents and Logarithms): Document llogb,
	llogbf, llogbl, FP_LLOGB0 and FP_LLOGBNAN.
	* manual/libm-err-tab.pl (@all_functions): Add llogb.
	* sysdeps/ieee754/ldbl-opt/nldbl-llogb.c: New file.
	* sysdeps/ieee754/ldbl-opt/w_llogbl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add llogb.
	(CFLAGS-nldbl-llogb.c): New variable.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-12-02 01:42:49 +00:00
Florian Weimer
b04beebf07 ld.so: Remove __libc_memalign 
It is no longer needed since commit 6c444ad6e9
(elf: Do not use memalign for TCB/TLS blocks allocation [BZ #17730]).
Applications do not link against ld.so and will use the definition in
libc.so, so there is no ABI impact.
 2016-11-30 16:23:58 +01:00
Joseph Myers
457663a7cd Add setpayloadsig, setpayloadsigf, setpayloadsigl. 
TS 18661-1 defines functions for manipulating the payloads of NaNs.
This patch implements the setpayloadsig functions for glibc; these are
like the setpayload functions, but produce a signaling NaN instead of
a quiet NaN.

The substance of the implementation was included with the setpayload
implementation, so the new files here just need to wrap the main files
with different defines to build the new functions.

Because the functions store a signaling NaN via a pointer and the
libm-test macros choose a suitable initial value for the variable in
such a case by comparing with the expected value, the relevant macro
needs to clear exceptions after FE_INVALID may have been raised by
that comparison.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(setpayloadsig): New declaration.
	* math/Versions (setpayloadsig): New libm symbol at version
	GLIBC_2.25.
	(setpayloadsigf): Likewise.
	(setpayloadsigl): Likewise.
	* math/Makefile (libm-calls): Add s_setpayloadsigF.
	* math/libm-test.inc (RUN_TEST_Ff_b1): Call feclearexcept
	(FE_ALL_EXCEPT) after initializing EXTRA_VAR.
	(setpayloadsig_test_data): New array.
	(setpayloadsig_test): New function.
	(main): Call setpayloadsig_test.
	* manual/arith.texi (FP Bit Twiddling): Document setpayloadsig,
	setpayloadsigf and setpayloadsigl.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/ieee754/dbl-64/s_setpayloadsig.c: New file.
	* sysdeps/ieee754/flt-32/s_setpayloadsigf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_setpayloadsigl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_setpayloadsigl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_setpayloadsigl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-setpayloadsig.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
	setpayloadsig.
	(CFLAGS-nldbl-setpayloadsig.c): New variable.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-11-24 23:56:48 +00:00
Adhemerval Zanella
c579f48edb Remove cached PID/TID in clone 
This patch remove the PID cache and usage in current GLIBC code.  Current
usage is mainly used a performance optimization to avoid the syscall,
however it adds some issues:

  - The exposed clone syscall will try to set pid/tid to make the new
    thread somewhat compatible with current GLIBC assumptions.  This cause
    a set of issue with new workloads and usecases (such as BZ#17214 and
    [1]) as well for new internal usage of clone to optimize other algorithms
    (such as clone plus CLONE_VM for posix_spawn, BZ#19957).

  - The caching complexity also added some bugs in the past [2] [3] and
    requires more effort of each port to handle such requirements (for
    both clone and vfork implementation).

  - Caching performance gain in mainly on getpid and some specific
    code paths.  The getpid performance leverage is questionable [4],
    either by the idea of getpid being a hotspot as for the getpid
    implementation itself (if it is indeed a justifiable hotspot a
    vDSO symbol could let to a much more simpler solution).

    Other usage is mainly for non usual code paths, such as pthread
    cancellation signal and handling.

For thread creation (on stack allocation) the code simplification in fact
adds some performance gain due the no need of transverse the stack cache
and invalidate each element pid.

Other thread usages will require a direct getpid syscall, such as
cancellation/setxid signal, thread cancellation, thread fail path (at
create_thread), and thread signal (pthread_kill and pthread_sigqueue).
However these are hardly usual hotspots and I think adding a syscall is
justifiable.

It also simplifies both the clone and vfork arch-specific implementation.
And by review each fork implementation there are some discrepancies that
this patch also solves:

  - microblaze clone/vfork does not set/reset the pid/tid field
  - hppa uses the default vfork implementation that fallback to fork.
    Since vfork is deprecated I do not think we should bother with it.

The patch also removes the TID caching in clone. My understanding for
such semantic is try provide some pthread usage after a user program
issue clone directly (as done by thread creation with CLONE_PARENT_SETTID
and pthread tid member).  However, as stated before in multiple discussions
threads, GLIBC provides clone syscalls without further supporting all this
semantics.

I ran a full make check on x86_64, x32, i686, armhf, aarch64, and powerpc64le.
For sparc32, sparc64, and mips I ran the basic fork and vfork tests from
posix/ folder (on a qemu system).  So it would require further testing
on alpha, hppa, ia64, m68k, nios2, s390, sh, and tile (I excluded microblaze
because it is already implementing the patch semantic regarding clone/vfork).

[1] https://codereview.chromium.org/800183004/
[2] https://sourceware.org/ml/libc-alpha/2006-07/msg00123.html
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=15368
[4] http://yarchive.net/comp/linux/getpid_caching.html

	* sysdeps/nptl/fork.c (__libc_fork): Remove pid cache setting.
	* nptl/allocatestack.c (allocate_stack): Likewise.
	(__reclaim_stacks): Likewise.
	(setxid_signal_thread): Obtain pid through syscall.
	* nptl/nptl-init.c (sigcancel_handler): Likewise.
	(sighandle_setxid): Likewise.
	* nptl/pthread_cancel.c (pthread_cancel): Likewise.
	* sysdeps/unix/sysv/linux/pthread_kill.c (__pthread_kill): Likewise.
	* sysdeps/unix/sysv/linux/pthread_sigqueue.c (pthread_sigqueue):
	Likewise.
	* sysdeps/unix/sysv/linux/createthread.c (create_thread): Likewise.
	* sysdeps/unix/sysv/linux/getpid.c: Remove file.
	* nptl/descr.h (struct pthread): Change comment about pid value.
	* nptl/pthread_getattr_np.c (pthread_getattr_np): Remove thread
	pid assert.
	* sysdeps/unix/sysv/linux/pthread-pids.h (__pthread_initialize_pids):
	Do not set pid value.
	* nptl_db/td_ta_thr_iter.c (iterate_thread_list): Remove thread
	pid cache check.
	* nptl_db/td_thr_validate.c (td_thr_validate): Likewise.
	* sysdeps/aarch64/nptl/tcb-offsets.sym: Remove pid offset.
	* sysdeps/alpha/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/arm/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/hppa/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/i386/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/ia64/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/m68k/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/microblaze/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/mips/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/nios2/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/powerpc/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/s390/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/sh/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/sparc/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/tile/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/x86_64/nptl/tcb-offsets.sym: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/clone.S: Remove pid and tid caching.
	* sysdeps/unix/sysv/linux/alpha/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/arm/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/hppa/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/clone2.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/nios2/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/tile/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/vfork.S: Remove pid set and reset.
	* sysdeps/unix/sysv/linux/alpha/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/arm/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/nios2/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/tile/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/tst-clone2.c (f): Remove direct pthread
	struct access.
	(clone_test): Remove function.
	(do_test): Rewrite to take in consideration pid is not cached anymore.
 2016-11-24 19:38:51 -02:00
Steve Ellcey
510abe7b94 Allow [f]statfs64 to alias [f]statfs 
* sysdeps/unix/sysv/linux/fstatfs64.c: Hide prototypes for fstatfs
	and __fstatfs.  Make them aliases of __fstatfs64 if
	STATFS_IS_STATFS64 is set to non-zero.
	* sysdeps/unix/sysv/linux/statfs64.c: Ditto for __statfs, statfs,
	and __statfs64.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c: Do not
	define __fstatfs and fstatfs if STATFS_IS_STATFS64 is non-zero.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c: Ditto
	for __statfs and statfs.
	* sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Set STATFS_IS_STATFS64
	to 0.
	* sysdeps/unix/sysv/linux/generic/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/hppa/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/ia64/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/microblaze/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/mips/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h: Ditto.
	* sysdeps/unix/sysv/linux/x86_64/kernel_stat.h: Ditto.
 2016-11-22 09:59:12 -08:00
Joseph Myers
eb3c12c784 Add setpayload, setpayloadf, setpayloadl. 
TS 18661-1 defines functions for manipulating the payloads of NaNs.
This patch implements the setpayload functions for glibc; these set a
number (pointed to by a function argument) to a quiet NaN with the
given payload, or to +0 if the given payload is not valid.  The
implementations are structured to allow the substance of the
implementation to be shared with the setpayloadsig functions when
those are added.

The semantics in the TS are not entirely clear in the case where the
payload passed to the function is zero (see discussion on the WG14
reflector last month).  This patch implements what seems the most
sensible interpretation, that -0 is never valid to give as the
payload, but +0 is valid in the case where the kind of NaN being
generated has its high mantissa bit set so payload 0 is actually
possible in such a NaN.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(setpayload): New declaration.
	* math/Versions (setpayload): New libm symbol at version
	GLIBC_2.25.
	(setpayloadf): Likewise.
	(setpayloadl): Likewise.
	* math/Makefile (libm-calls): Add s_setpayloadF.
	* math/libm-test.inc (struct test_Ffp_b1_data): Rename to struct
	test_Ff_b1_data.
	(RUN_TEST_Ff_b1): New macro.
	(RUN_TEST_LOOP_Ff_b1): Likewise.
	(canonicalize_test_data): Update type.
	(setpayload_test_data): New array.
	(setpayload_test): New function.
	(main): Call setpayload_test.
	* manual/arith.texi (FP Bit Twiddling): Document setpayload,
	setpayloadf and setpayloadl.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/ieee754/dbl-64/s_setpayload.c: New file.
	* sysdeps/ieee754/dbl-64/s_setpayload_main.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c:
	Likewise.
	* sysdeps/ieee754/flt-32/s_setpayloadf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_setpayloadf_main.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_setpayloadl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_setpayloadl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_setpayloadl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_setpayloadl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_setpayloadl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_setpayloadl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-setpayload.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
	setpayload.
	(CFLAGS-nldbl-setpayload.c): New variable.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-11-19 00:16:28 +00:00
Joseph Myers
eaf5ad0bc4 Add canonicalize, canonicalizef, canonicalizel. 
TS 18661-1 defines canonicalize functions to produce a canonical
version of a floating-point representation.  This patch implements
these functions for glibc.

As with the iscanonical macro, these functions are oriented to the
decimal floating-point case, where some values have both canonical and
noncanonical representations.  However, the functions have a return
value that says whether they succeeded in storing a canonical result;
thus, they can fail for the case of an invalid representation (while
still not making any particular choice from among multiple equally
canonical valid representations of the same value).  Since no
floating-point formats in glibc actually have noncanonical valid
representations, a type-generic implementation of these functions can
be used that expects iscanonical to return 0 only for invalid
representations.  Now that iscanonical is used within libm.so,
libm_hidden_proto / libm_hidden_def are added for __iscanonicall.

The definition of these functions is intended to correspond to a
convertFormat operation to the same floating-point format.  Thus, they
convert signaling NaNs to quiet NaNs, raising the "invalid" exception.
Such a conversion "should" produce "the canonical version of that
signaling NaN made quiet".

libm-test.inc is made to check NaN payloads for the output of these
functions, a new feature (at some point manipulation functions such as
fabs and copysign should have tests added that verify payload
preservation for them).  As however some architectures may not follow
the recommended practice of preserving NaN payloads when converting a
signaling NaN to quiet, a new math-tests.h macro
SNAN_TESTS_PRESERVE_PAYLOAD is added, and defined to 0 for non-NAN2008
MIPS; any other architectures seeing test failures for lack of payload
preservation in this case should also define this macro to 0.  (If any
cases arise where the sign isn't preserved either, those should have a
similar macro added.)

The ldbl-96 and ldbl-128ibm tests of iscanonical are renamed and
adapted to test canonicalizel as well on the same representations.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(canonicalize): New declaration.
	* math/Versions (canonicalize): New libm symbol at version
	GLIBC_2.25.
	(canonicalizef): Likewise.
	(canonicalizel): Likewise.
	* math/Makefile (gen-libm-calls): Add s_canonicalizeF.
	* math/s_canonicalize_template.c: New file.
	* math/libm-test.inc: Update comment on functions tested and
	testing of NaN payloads.
	(TEST_NAN_PAYLOAD): New macro.
	(NO_TEST_INLINE): Update value.
	(XFAIL_TEST): Likewise.
	(ERRNO_UNCHANGED): Likewise.
	(ERRNO_EDOM): Likewise.
	(ERRNO_ERANGE): Likewise.
	(IGNORE_RESULT): Likewise.
	(NON_FINITE): Likewise.
	(TEST_SNAN): Likewise.
	(NO_TEST_MATHVEC): Likewise.
	(TEST_NAN_PAYLOAD_CANONICALIZE): New macro.
	(check_float_internal): Check NaN payloads if TEST_NAN_PAYLOAD.
	(struct test_Ffp_b1_data): New type.
	(RUN_TEST_Ffp_b1): New macro.
	(RUN_TEST_LOOP_Ffp_b1): Likewise.
	(canonicalize_test_data): New array.
	(canonicalize_test): New function.
	(main): Call canonicalize_test.
	* manual/arith.texi (FP Bit Twiddling): Document canonicalize,
	canonicalizef and canonicalizel.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/ieee754/ldbl-opt/nldbl-canonicalize.c: New file.
	* sysdeps/ieee754/ldbl-opt/s_canonicalizel.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
	canonicalize.
	(CFLAGS-nldbl-canonicalize.c): New variable.
	* sysdeps/ieee754/ldbl-128ibm/test-iscanonical-ldbl-128ibm.c: Move
	to ...
	* sysdeps/ieee754/ldbl-128ibm/test-canonical-ldbl-128ibm.c:
	... here.
	(do_test): Also test canonicalizel.
	* sysdeps/ieee754/ldbl-128ibm/Makefile (tests): Change
	test-iscanonical-ldbl-128ibm to test-canonical-ldbl-128ibm.
	* sysdeps/ieee754/ldbl-128ibm/include/bits/iscanonical.h: New
	file.
	* sysdeps/ieee754/ldbl-128ibm/s_iscanonicall.c (__iscanonicall):
	Use libm_hidden_def.
	* sysdeps/ieee754/ldbl-96/test-iscanonical-ldbl-96.c: Move to ...
	* sysdeps/ieee754/ldbl-96/test-canonical-ldbl-96.c: ... here.
	(do_test): Also test canonicalizel.
	* sysdeps/ieee754/ldbl-96/Makefile (tests): Change
	test-iscanonical-ldbl-96 to test-canonical-ldbl-96.
	* sysdeps/ieee754/ldbl-96/include/bits/iscanonical.h: New file.
	* sysdeps/ieee754/ldbl-96/s_iscanonicall.c (__iscanonicall): Use
	libm_hidden_def.
	* sysdeps/generic/math-tests.h (SNAN_TESTS_PRESERVE_PAYLOAD): New
	macro.
	* sysdeps/mips/math-tests.h [__mips_hard_float && !__mips_nan2008]
	(SNAN_TESTS_PRESERVE_PAYLOAD): Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-10-26 23:14:31 +00:00
Gabriel F. T. Gomes
6962682ffe Add strfromd, strfromf, and strfroml functions 
ISO/IEC TS 18661-1 adds several functions in the strfrom family to stdlib.
This patch adds strfromd, strfromf, and strfroml.  This is being done in
preparation for the new floating-point type, float128.  The added functions
convert a floating-point value into a string, with configurable format.
 2016-10-25 17:03:54 -02:00
Joseph Myers
f8e8b8ed9f Add getpayload, getpayloadf, getpayloadl. 
TS 18661-1 defines functions for manipulating the payloads of NaNs.
This patch implements the getpayload functions for glibc; these
extract the NaN payload (from an argument passed as a pointer, for
which corresponding libm-test support is added) and return it in the
same floating-point type.  The return value of these functions is
unspecified for non-NaN arguments; the patch does the simplest thing
to implement, which is that the functions do not check whether the
argument is a NaN and just treat the relevant bits of the
representation as a payload regardless.  A conversion from integer to
floating-point is used to produce the required return value, except in
the ldbl-128 case; as 128-bit integers are not supported for all
configurations using ldbl-128, the code constructs the required
floating-point representation of the return value directly instead.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(getpayload): New declaration.
	* math/Versions (getpayload): New libm symbol at version
	GLIBC_2.25.
	(getpayloadf): Likewise.
	(getpayloadl): Likewise.
	* math/Makefile (libm-calls): Add s_getpayloadF.
	* math/libm-test.inc: Include <nan-high-order-bit.h>.
	(struct test_f_f_data): Add comment.
	(RUN_TEST_fp_f): New macro.
	(RUN_TEST_LOOP_fp_f): Likewise.
	(getpayload_test_data): New array.
	(getpayload_test): New function.
	(main): Call getpayload_test.
	* math/gen-libm-test.pl (parse_args): Handle 'p' in argument
	descriptor.
	* manual/arith.texi (FP Bit Twiddling): Document getpayload,
	getpayloadf and getpayloadl.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/ieee754/dbl-64/s_getpayload.c: New file.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_getpayload.c: Likewise.
	* sysdeps/ieee754/flt-32/s_getpayloadf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_getpayloadl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_getpayloadl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_getpayloadl.c: Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-10-19 01:49:09 +00:00
Joseph Myers
cc6a8d7457 Add totalordermag, totalordermagf, totalordermagl. 
In addition to the totalorder functions, TS 18661-1 defines
totalordermag functions, which do the same comparison but on the
absolute values of the arguments.  This patch implements these
functions for glibc, including the type-generic macro in <tgmath.h>.
In general the implementations are similar to but simpler than those
for the totalorder functions.

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(totalordermag): New declaration.
	* math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag):
	New macro.
	* math/Versions (totalordermag): New libm symbol at version
	GLIBC_2.25.
	(totalordermagf): Likewise.
	(totalordermagl): Likewise.
	* math/Makefile (libm-calls): Add s_totalordermagF.
	* math/libm-test.inc (totalordermag_test_data): New array.
	(totalordermag_test): New function.
	(main): Call totalordermag_test.
	* math/test-tgmath.c (NCALLS): Increase to 125.
	(F(compile_test)): Call totalordermag.
	(F(totalordermag)): New function.
	* manual/arith.texi (FP Comparison Functions): Document
	totalordermag, totalordermagf and totalordermagl.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/ieee754/dbl-64/s_totalordermag.c: New file.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Likewise.
	* sysdeps/ieee754/flt-32/s_totalordermagf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
	totalordermag.
	(CFLAGS-nldbl-totalordermag.c): New variable.
	* sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c
	(do_test): Also test totalordermagl.
	* sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test):
	Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-10-15 00:36:48 +00:00
Joseph Myers
5e9d98a3d9 Add totalorder, totalorderf, totalorderl. 
TS 18661-1 defines totalorder functions implementing the totalOrder
comparison operation from IEEE 754-2008.  This patch implements these
functions for glibc, including the type-generic macro in <tgmath.h>.
(The totalordermag functions will be added in a separate patch.)

The description of the totalOrder operation is complicated.  However,
for IEEE interchange binary formats and the preferred quiet NaN
convention, what that complicated description means is that you
interpret the representation as a sign-magnitude integer (with -0
coming before +0) and do a <= comparison on that interpretation.  For
finite values and infinities the ordering of the sign-magnitude
integers is just the same as the ordering of floating-point values, so
this extends that to all representations.  (Different representations
of the same floating-point value - which includes same quantum in the
decimal case - must still be considered equal by this operation, but
that issue doesn't arise for IEEE interchange binary formats.)  So the
complications are:

* When MIPS quiet NaN conventions are in use, the representation of
  NaNs needs adjusting before making such an integer comparison.  This
  patch does this adjustment only when both arguments are NaNs, as
  there's no need for it if only one is a NaN, and as long as both are
  NaNs you can just flip the relevant bits without any problems from
  this turning a NaN into an infinity.

* For the m68k version of ldbl-96, where the high mantissa bit is
  "don't care" for infinities and NaNs, representations where it
  differs must compare the same.  Note: although the testcase for this
  compiles, I have not actually tested on m68k.

* For ldbl-128ibm, the low part must be ignored when the high part is
  NaN, and low parts of +0 and -0 must be considered the same whatever
  the high part.

The new tests in libm-test.inc are the first tests there specifying
particular payloads for input NaNs.  Separate tests are also added for
the ldbl-96 and ldbl-128ibm special cases where there are different
representations of the same value that must compare equal (which can't
be covered in libm-test.inc as that only specifies values, not
representations).

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(totalorder): New declaration.
	* math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder):
	New macro.
	* math/Versions (totalorder): New libm symbol at version
	GLIBC_2.25.
	(totalorderf): Likewise.
	(totalorderl): Likewise.
	* math/Makefile (libm-calls): Add s_totalorderF.
	* math/gen-libm-test.pl (parse_args): Escape quotes in test name
	string.
	* math/libm-test.inc (PAYLOAD_DIG): New macro.
	(qnan_value_pl): Likewise.
	(snan_value_pl): Likewise.
	(qnan_value): Define using qnan_value_pl.
	(snan_value): Define using snan_value_pl.
	(struct test_ff_i_data): Add comment about which tests use this
	structure.
	(RUN_TEST_ff_b): New macro.
	(RUN_TEST_LOOP_ff_b): Likewise.
	(totalorder_test_data): New array.
	(totalorder_test): New function.
	(main): Call totalorder_test.
	* math/test-tgmath.c (NCALLS): Increase to 122.
	(F(compile_test)): Call totalorder.
	(F(totalorder)): New function.
	* manual/arith.texi (FP Comparison Functions): Document
	totalorder, totalorderf and totalorderl.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/ieee754/dbl-64/s_totalorder.c: New file.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Likewise.
	* sysdeps/ieee754/flt-32/s_totalorderf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_totalorderl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_totalorderl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
	totalorder.
	(CFLAGS-nldbl-totalorder.c): New variable.
	* sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c: New
	file.
	* sysdeps/ieee754/ldbl-128ibm/Makefile [$(subdir) = math] (tests):
	Add test-totalorderl-ldbl-128ibm.
	* sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c: New file.
	* sysdeps/ieee754/ldbl-96/Makefile [$(subdir) = math] (tests): Add
	test-totalorderl-ldbl-96.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-10-12 01:20:30 +00:00
Joseph Myers
1e7c8fcca5 Add iseqsig. 
TS 18661-1 adds an iseqsig type-generic comparison macro to <math.h>.
This macro is like the == operator except that unordered operands
result in the "invalid" exception and errno being set to EDOM.

This patch implements this macro for glibc.  Given the need to set
errno, this is implemented with out-of-line functions __iseqsigf,
__iseqsig and __iseqsigl (of which the last only exists at all if long
double is ABI-distinct from double, so no function aliases or compat
support are needed).  The present patch ignores excess precision
issues; I intend to deal with those in a followup patch.  (Like
comparison operators, type-generic comparison macros should *not*
convert operands to their semantic types but should preserve excess
range and precision, meaning that for some argument types and values
of FLT_EVAL_METHOD, an underlying function should be called for a
wider type than that of the arguments.)

The underlying functions are implemented with the type-generic
template machinery.  Comparing x <= y && x >= y is sufficient in ISO C
to achieve an equality comparison with "invalid" raised for unordered
operands (and the results of those two comparisons can also be used to
tell whether errno needs to be set).  However, some architectures have
GCC bugs meaning that unordered comparison instructions are used
instead of ordered ones.  Thus, a mechanism is provided for
architectures to use an explicit call to feraiseexcept to raise
exceptions if required.  If your architecture has such a bug you
should add a fix-fp-int-compare-invalid.h header for it, with a
comment pointing to the relevant GCC bug report; if such a GCC bug is
fixed, that header's contents should have a __GNUC_PREREQ conditional
added so that the workaround can eventually be removed for that
architecture.

Tested for x86_64, x86, mips64, arm and powerpc.

	* math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (iseqsig): New
	macro.
	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(__iseqsig): New declaration.
	* math/s_iseqsig_template.c: New file.
	* math/Versions (__iseqsigf): New libm symbol at version
	GLIBC_2.25.
	(__iseqsig): Likewise.
	(__iseqsigl): Likewise.
	* math/libm-test.inc (iseqsig_test_data): New array.
	(iseqsig_test): New function.
	(main): Call iseqsig_test.
	* math/Makefile (gen-libm-calls): Add s_iseqsigF.
	* manual/arith.texi (FP Comparison Functions): Document iseqsig.
	* manual/libm-err-tab.pl: Update comment on interfaces without
	ulps tabulated.
	* sysdeps/generic/fix-fp-int-compare-invalid.h: New file.
	* sysdeps/powerpc/fpu/fix-fp-int-compare-invalid.h: Likewise.
	* sysdeps/x86/fpu/fix-fp-int-compare-invalid.h: Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-10-06 22:19:38 +00:00
Joseph Myers
ec94343f59 Add femode_t functions. 
TS 18661-1 defines a type femode_t to represent the set of dynamic
floating-point control modes (such as the rounding mode and trap
enablement modes), and functions fegetmode and fesetmode to manipulate
those modes (without affecting other state such as the raised
exception flags) and a corresponding macro FE_DFL_MODE.

This patch series implements those interfaces for glibc.  This first
patch adds the architecture-independent pieces, the x86 and x86_64
implementations, and the <bits/fenv.h> and ABI baseline updates for
all architectures so glibc keeps building and passing the ABI tests on
all architectures.  Subsequent patches add the fegetmode and fesetmode
implementations for other architectures.

femode_t is generally an integer type - the same type as fenv_t, or as
the single element of fenv_t where fenv_t is a structure containing a
single integer (or the single relevant element, where it has elements
for both status and control registers) - except where architecture
properties or consistency with the fenv_t implementation indicate
otherwise.  FE_DFL_MODE follows FE_DFL_ENV in whether it's a magic
pointer value (-1 cast to const femode_t *), a value that can be
distinguished from valid pointers by its high bits but otherwise
contains a representation of the desired register contents, or a
pointer to a constant variable (the powerpc case; __fe_dfl_mode is
added as an exported constant object, an alias to __fe_dfl_env).

Note that where architectures (that share a register between control
and status bits) gain definitions of new floating-point control or
status bits in future, the implementations of fesetmode for those
architectures may need updating (depending on whether the new bits are
control or status bits and what the implementation does with
previously unknown bits), just like existing implementations of
<fenv.h> functions that take care not to touch reserved bits may need
updating when the set of reserved bits changes.  (As any new bits are
outside the scope of ISO C, that's just a quality-of-implementation
issue for supporting them, not a conformance issue.)

As with fenv_t, femode_t should properly include any software DFP
rounding mode (and for both fenv_t and femode_t I'd consider that
fragment of DFP support appropriate for inclusion in glibc even in the
absence of the rest of libdfp; hardware DFP rounding modes should
already be included if the definitions of which bits are status /
control bits are correct).

Tested for x86_64, x86, mips64 (hard float, and soft float to test the
fallback version), arm (hard float) and powerpc (hard float, soft
float and e500).  Other architecture versions are untested.

	* math/fegetmode.c: New file.
	* math/fesetmode.c: Likewise.
	* sysdeps/i386/fpu/fegetmode.c: Likewise.
	* sysdeps/i386/fpu/fesetmode.c: Likewise.
	* sysdeps/x86_64/fpu/fegetmode.c: Likewise.
	* sysdeps/x86_64/fpu/fesetmode.c: Likewise.
	* math/fenv.h: Update comment on inclusion of <bits/fenv.h>.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fegetmode): New function
	declaration.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fesetmode): Likewise.
	* bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New
	typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/aarch64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/alpha/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/arm/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/hppa/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/ia64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/m68k/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/microblaze/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/mips/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/nios2/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/powerpc/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (__fe_dfl_mode): New variable
	declaration.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/s390/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/sh/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/sparc/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/tile/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* sysdeps/x86/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(femode_t): New typedef.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro.
	* manual/arith.texi (FE_DFL_MODE): Document macro.
	(fegetmode): Document function.
	(fesetmode): Likewise.
	* math/Versions (fegetmode): New libm symbol at version
	GLIBC_2.25.
	(fesetmode): Likewise.
	* math/Makefile (libm-support): Add fegetmode and fesetmode.
	(tests): Add test-femode and test-femode-traps.
	* math/test-femode-traps.c: New file.
	* math/test-femode.c: Likewise.
	* sysdeps/powerpc/fpu/fenv_const.c (__fe_dfl_mode): Declare as
	alias for __fe_dfl_env.
	* sysdeps/powerpc/nofpu/fenv_const.c (__fe_dfl_mode): Likewise.
	* sysdeps/powerpc/powerpc32/e500/nofpu/fenv_const.c
	(__fe_dfl_mode): Likewise.
	* sysdeps/powerpc/Versions (__fe_dfl_mode): New libm symbol at
	version GLIBC_2.25.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-09-07 16:40:09 +00:00
Joseph Myers
780257d48d Add fetestexceptflag. 
TS 18661-1 defines an fetestexceptflag function to test the exception
state saved in an fexcept_t object by fegetexceptflag.

This patch implements this function for glibc.  Almost all
architectures save exception state in such a way that it can be
directly ANDed with exception flag bits, so rather than having lots of
fetestexceptflag implementations that all do the same thing, the math/
implementation is made to use this generic logic (which is also OK in
the fallback case where FE_ALL_EXCEPT is zero).  The only architecture
that seems to need anything different is s390.

(fegetexceptflag and fesetexceptflag use abbreviated filenames
fgetexcptflg.c and fsetexcptflg.c.  Because we are no longer concerned
by 14-character filename limits, fetestexceptflag uses the obvious
filename fetestexceptflag.c.)

The NEWS entry is intended to be expanded along the lines given in
<https://sourceware.org/ml/libc-alpha/2016-08/msg00356.html> when
fegetmode and fesetmode are added.

Tested for x86_64, x86, mips64 and powerpc.

	* math/fetestexceptflag.c: New file.
	* sysdeps/s390/fpu/fetestexceptflag.c: Likewise.  Comment by
	Stefan Liebler.
	* math/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(fetestexceptflag): New function declaration.
	* manual/arith.texi (fetestexceptflag): Document function.
	* math/Versions (fetestexceptflag): New libm symbol at version
	GLIBC_2.25.
	* math/Makefile (libm-support): Add fetestexceptflag.
	(tests): Add test-fetestexceptflag.
	* math/test-fetestexceptflag.c: New file.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-08-29 11:47:21 +00:00
Joseph Myers
5146356f5a Add fesetexcept. 
TS 18661-1 defines an fesetexcept function for setting floating-point
exception flags without the side-effect of causing enabled traps to be
taken.

This patch series implements this function for glibc.  The present
patch adds the fallback stub implementation, x86 and x86_64
implementations, documentation, tests and ABI baseline updates.  The
remaining patches, some of them untested, add implementations for
other architectures.  The implementations generally follow those of
the fesetexceptflag function.

As for fesetexceptflag, the approach taken for architectures where
setting flags causes enabled traps to be taken is to set the flags
(and potentially cause traps) rather than refusing to set the flags
and returning an error.  Since ISO C and TS 18661 provide no way to
enable traps, this is formally in accordance with the standards.

The NEWS entry should be considered a placeholder, since this patch
series is intended to be followed by further such series adding other
TS 18661-1 features, so that the NEWS entry would end up looking more
like

* New <fenv.h> features from TS 18661-1:2014 are added to libm: the
  fesetexcept, fetestexceptflag, fegetmode and fesetmode functions,
  the femode_t type and the FE_DFL_MODE macro.

with hopefully more such entries for other features, rather than
having an entry for a single function in the end.

I believe we have consensus for adding TS 18661-1 interfaces as per
<https://sourceware.org/ml/libc-alpha/2016-06/msg00421.html>.

Tested for x86_64, x86, mips64 (hard float, and soft float to test the
fallback version), arm (hard float) and powerpc (hard float, soft
float and e500).

	* math/fesetexcept.c: New file.
	* sysdeps/i386/fpu/fesetexcept.c: Likewise.
	* sysdeps/x86_64/fpu/fesetexcept.c: Likewise.
	* math/fenv.h: Define
	__GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include
	<bits/libc-header-start.h> instead of including <features.h>.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fesetexcept): New function
	declaration.
	* manual/arith.texi (fesetexcept): Document function.
	* math/Versions (fesetexcept): New libm symbol at version
	GLIBC_2.25.
	* math/Makefile (libm-support): Add fesetexcept.
	(tests): Add test-fesetexcept and test-fesetexcept-traps.
	* math/test-fesetexcept.c: New file.
	* math/test-fesetexcept-traps.c: Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2016-08-16 16:16:10 +00:00
Zack Weinberg
63eb8df85a Minimize sysdeps code involved in defining major/minor/makedev. 
Presently sys/sysmacros.h is entirely defined in sysdeps.  This would
mean that the deprecation logic coming up in the next patch would have
to be written twice (in generic/ and unix/sysv/linux/).  To avoid that,
hoist all but the unavoidably system-dependent logic to misc/, leaving a
bits/ header behind.  This also promotes the Linux-specific encoding of
dev_t, which accommodates 32-bit major and minor numbers in a 64-bit dev_t,
to generic, as glibc's dev_t is always 64 bits wide.

The former Linux implementation used inline functions to avoid evaluating
arguments more than once.  After this change, all platforms use inline
functions, which means that three new symbols are added to the generic ABI.
(These symbols are in the user namespace, which is how they have always
been on Linux.  They begin with "gnu_dev_", so collisions with user code
are pretty unlikely.)

New ports henceforth need only provide a bits/sysmacros.h defining
internal macros __SYSMACROS_{DECLARE,DEFINE}_{MAJOR,MINOR,MAKEDEV}.
This is only necessary if the kernel encoding is incompatible with
the now-generic encoding (for instance, it would be necessary for
FreeBSD).

While I was at it, I added a basic round-trip test for these functions.

	* sysdeps/generic/sys/sysmacros.h: Delete file.
	* sysdeps/unix/sysv/linux/makedev.c: Delete file.
	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Move file ...
	* bits/sysmacros.h: ... here; this encoding is now the generic
	encoding.  Now defines only the following macros:
	__SYSMACROS_DECLARE_MAJOR, __SYSMACROS_DEFINE_MAJOR,
	__SYSMACROS_DECLARE_MINOR, __SYSMACROS_DEFINE_MINOR,
	__SYSMACROS_DECLARE_MAKEDEV, __SYSMACROS_DEFINE_MAKEDEV.

	* misc/sys/sysmacros.h, misc/makedev.c: New files that use
	bits/sysmacros.h and the above new macros to generate the
	public implementations of major, minor, and makedev.
	* misc/tst-makedev.c: New test.
	* include/sys/sysmacros.h: New wrapper.

	* misc/Makefile (headers): Add sys/sysmacros.h, bits/sysmacros.h.
	(routines): Add makedev.
	(tests): Add tst-makedev.
	* misc/Versions [GLIBC_2.25]: Add gnu_dev_major, gnu_dev_minor,
	gnu_dev_makedev.
	* posix/Makefile (headers): Remove sys/sysmacros.h.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove makedev.

	* sysdeps/arm/nacl/libc.abilist: Add GLIBC_2.25,
	gnu_dev_major, gnu_dev_makedev, gnu_dev_minor.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist
	* sysdeps/unix/sysv/linux/alpha/libc.abilist
	* sysdeps/unix/sysv/linux/arm/libc.abilist
	* sysdeps/unix/sysv/linux/hppa/libc.abilist
	* sysdeps/unix/sysv/linux/i386/libc.abilist
	* sysdeps/unix/sysv/linux/ia64/libc.abilist
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
	* sysdeps/unix/sysv/linux/nios2/libc.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
	* sysdeps/unix/sysv/linux/sh/libc.abilist
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist:
	Add GLIBC_2.25.
 2016-08-03 15:23:04 -04:00
Rajalakshmi Srinivasaraghavan
41a359e22f Add nextup and nextdown math functions 
TS 18661 adds nextup and nextdown functions alongside nextafter to provide
support for float128 equivalent to it.  This patch adds nextupl, nextup,
nextupf, nextdownl, nextdown and nextdownf to libm before float128 support.

The nextup functions return the next representable value in the direction of
positive infinity and the nextdown functions return the next representable
value in the direction of negative infinity.  These are currently enabled
as GNU extensions.
 2016-06-16 21:37:45 +05:30
Adhemerval Zanella
78880cc185 Revert {send,sendm,recv,recvm}msg conformance changes 
After some discussion in libc-alpha about this POSIX compliance fix, I see
that GLIBC should indeed revert back to previous definition of msghdr and
cmsghdr and implementation of sendmsg, recvmsg, sendmmsg, recvmmsg due some
reasons:

 * The possible issue where the syscalls wrapper add the compatibility
   layer is quite limited in scope and range.  And kernel current
   also add some limits to the values on the internal msghdr and
   cmsghdr fields:

     - msghdr::msg_iovlen larger than UIO_MAXIOV (1024) returns
       EMSGSIZE.
     - msghdr::msg_controllen larger than INT_MAX returns ENOBUFS.

 * There is a small performance hit for recvmsg/sendmsg/recmmsg which
   is neglectable, but it is a big hit for sendmmsg since now instead
   of calling the syscall for the packed structure, GLIBC is calling
   multiple sendmsg.  This defeat the very existence of the syscall.

 * It currently breaks libsanitizer build on GCC [1] (I fixed on compiler-rt).
   However the fix is incomplete because it does add any runtime check
   since libsanitizer currently does not have any facility to intercept
   symbols with multiple version [2].

   This, along with incorret dlsym/dlvsym return for versioned symbol due
   another bug [3], makes hard to interpose versioned symbols.

   Also, current approach of fixing GCC PR#71445 leads to half-baked
   solutions without versioned symbol interposing.

This patch basically reverts commits 2f0dc39029, 222c2d7f43,
af7f7c7ec8.  I decided to not revert abf29edd4a (Adjust
kernel-features.h defaults for recvmsg and sendmsg) mainly because it
does not really address the POSIX compliance original issue and also
adds some cleanups.

Tested on x86, i386, s390, s390x, aarch64, and powerpc64le.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71445
[2] https://github.com/google/sanitizers/issues/628
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=14932

	* conform/data/sys/socket.h-data (msghdr.msg_iovlen): Add xfail-.
	(msghdr.msg_controllen): Likewise.
	(cmsghdr.cmsg_len): Likewise.
	* nptl/Makefile (libpthread-routines): Remove ptw-oldrecvmsg and
	ptw-oldsendmsg.
	(CFLAGS-oldrecvmsg.c): Remove rule.
	(CFLAGS-oldsendmsg.c): Likewise.
	(CFLAGS-recvmsg.c): Add rule.
	(CFLAGS-sendmsg.c): Likewise.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
	oldrecvmsg, oldsendmsg, oldrecvmmsg, oldsendmmsg.
	(CFLAGS-recvmsg.c): Remove rule.
	(CFLAGS-sendmsg.c): Likewise.
	(CFLAGS-oldrecvmsg.c): Likewise.
	(CFLAGS-oldsendmsg.c): Likewise.
	(CFLAGS-recvmmsg.c): Likewise.
	* sysdeps/unix/sysv/linux/bits/socket.h (msghdr.msg_iovlen): Revert
	to kernel defined interfaces.
	(msghdr.msg_controllen): Likewise.
	(cmsghdr.cmsg_len): Likewise.
	(msghdr.__glibc_reserved1): Remove member.
	(msghdr.__glibc_reserved2): Likewise.
	(cmsghdr.__glibc_reserved1): Likewise.
	* sysdeps/unix/sysv/linux/oldrecvmmsg.c: Remove file.
	* sysdeps/unix/sysv/linux/oldrecvmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/oldsendmmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/oldsendmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/recvmmsg.c: Revert back to previous
	version.
	* sysdeps/unix/sysv/linux/recvmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/sendmmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/sendmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/Versions [libc] (GLIBC_2.24):
	Remove recvmsg and sendmsg.
	* sysdeps/unix/sysv/linux/alpha/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/m68k/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/Versions
	[libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/nios2/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
	[libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/sparc/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/Versions: Remove file
	* sysdeps/unix/sysv/linux/x86_64/64/Versions: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/Versions: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Remove new 2.24
	version for {recv,send,recm,sendm}msg.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
 2016-06-10 11:58:16 -03:00
Carlos O'Donell
47dd3543d3 Bug 20198: quick_exit should not call destructors. 
In C++11 18.5.12 says "Objects shall not be destroyed as a
result of calling quick_exit." In C11 quick_exit is silent
about thread object destruction. Therefore to make glibc
C++ compliant we do not call any thread local destructors.
A new regression test verifies the fix.

I will note that C++11 18.5.3 makes it clear that C++
defines additional requirements for _Exit() to prevent it
from executing destructors.

Given that the point of _Exit() is to terminate the process
immediately it makes sense the C and C++ should line up
and avoid calling destructors.

No failures. New regtest passes.
 2016-06-06 21:40:25 -04:00
Adhemerval Zanella
222c2d7f43 network: recvmmsg and sendmmsg standard compliance (BZ#16919) 
POSIX specifies that both msghdr::msg_iovlen and msghdr::msg_controllen
to be of size int and socklen_t respectively, however Linux implements
it as a size_t.  So for 64-bits architecture where sizeof of size_t is
larger than socklen_t, both sendmmsg and recvmmsg need to adjust the
mmsghdr::msg_hdr internal fields before issuing the syscall itself.

This patch fixes it by operating on the padding if it the case.
For recvmmsg, the most straightfoward case, only zero padding the fields
is suffice.  However, for sendmmsg, where adjusting the buffer is out
of the contract (since it may point to a read-only data), the function
is rewritten to use sendmsg instead (which from previous patch
allocates a temporary msghdr to operate on).

Also for 64-bit ports that requires it, a new recvmmsg and sendmmsg
compat version is created (which uses size_t for both cmsghdr::cmsg_len
and internal

Tested on x86_64, i686, aarch64, armhf, and powerpc64le.

	* sysdeps/unix/sysv/linux/Makefile
	[$(subdir) = socket] (sysdep_routines): Add oldrecvmmsg and
	oldsendmmsg.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add recvmmsg and
	sendmmsg.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/oldrecvmmsg.c: New file.
	* sysdeps/unix/sysv/linux/oldsendmmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/recvmmsg.c (__recvmmsg): Adjust msghdr
	iovlen and controllen fields to adjust to POSIX specification.
	* sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Likewise.
 2016-05-25 17:39:07 -03:00
Adhemerval Zanella
af7f7c7ec8 network: recvmsg and sendmsg standard compliance (BZ#16919) 
POSIX specifies that both msghdr::msg_iovlen and msghdr::msg_controllen
to be of size int and socklen_t respectively.  However Linux defines it as
both size_t and for 64-bit it requires some adjustments to make the
functions standard compliance.

This patch fixes it by creating a temporary header and zeroing the pad
fields for 64-bits architecture where size of size_t exceeds the size of
the int.

Also the new recvmsg and sendmsg implementation is only added on libc,
with libpthread only containing a compat symbol.

Tested on x86_64, i686, aarch64, armhf, and powerpc64le.

	* conform/data/sys/socket.h-data (msghdr.msg_iovlen): Remove xfail-
	and change to correct expected type.
	(msghdr.msg_controllen): Likewise.
	(cmsghdr.cmsg_len): Likewise.
	* sysdeps/unix/sysv/linux/bits/socket.h (msghdr.msg_iovlen): Fix
	expected POSIX assumption about the size.
	(msghdr.msg_controllen): Likewise.
	(msghdr.__glibc_reserved1): Likewise.
	(msghdr.__glibc_reserved2): Likewise.
	(cmsghdr.cmsg_len): Likewise.
	(cmsghdr.__glibc_reserved1): Likewise.
	* nptl/Makefile (libpthread-routines): Remove ptw-recvmsg and ptw-sendmsg.
	Add ptw-oldrecvmsg and ptw-oldsendmsg.
	(CFLAGS-sendmsg.c): Remove rule.
	(CFLAGS-recvmsg.c): Likewise.
	(CFLAGS-oldsendmsg.c): Add rule.
	(CFLAGS-oldrecvmsg.c): Likewise.
	* sysdeps/unix/sysv/linux/alpha/Versions [libc] (GLIBC_2.24): Add
	recvmsg and sendmsg.
	* sysdeps/unix/sysv/linux/aarch64/Version [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/hppa/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/i386/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/ia64/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/m68k/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions [libc]
	(GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/Versions [libc] (GLIBC_2.24): Likewise.
	* sysdeps/unix/sysv/linux/sparc/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Versions [libc] (GLIBC_2.24):
	Likewise.
	( sysdeps/unix/sysv/linux/tile/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/Versions [libc]
	(GLIBC_2.24): Likewise.
	( sysdeps/unix/sysv/linux/x86_64/64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/x84_64/Versions [libc] (GLIBC_2.24):
	Likewise.
	* sysdeps/unix/sysv/linux/Makefile
	[$(subdir) = socket)] (sysdep_headers): Add oldrecvmsg and oldsendmsg.
	(CFLAGS-sendmsg.c): Add rule.
	(CFLAGS-recvmsg.c): Likewise.
	(CFLAGS-oldsendmsg.c): Likewise.
	(CFLAGS-oldrecvmsg.c): Likewise.
	* sysdeps/unix/sysv/linux/check_native.c (__check_native): Fix msghdr
	initialization.
	* sysdeps/unix/sysv/linux/check_pf.c (make_request): Likewise.
	* sysdeps/unix/sysv/linux/ifaddrs.c (__netlink_request): Likewise.
	* sysdeps/unix/sysv/linux/oldrecvmsg.c: New file.
	* sysdeps/unix/sysv/linux/oldsendmsg.c: Likewise.
	* sysdeps/unix/sysv/linux/recvmsg.c (__libc_recvmsg): Adjust msghdr
	iovlen and controllen fields to adjust to POSIX specification.
	* sysdeps/unix/sysv/linux/sendmsg.c (__libc_sendmsg): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: New version and
	added recvmsg and sendmsg.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdepe/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	Likewise.
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
 2016-05-25 17:39:01 -03:00
Stefan Liebler
b91a333ecb S390: Add support for vdso getcpu symbol. 
This patch adds support for symbol __kernel_getcpu in vDSO,
which is available with kernel 4.5.
Now sched_getcpu is using this symbol if available in mapped vDSO
by defining macro HAVE_GETCPU_VSYSCALL. If not available at runtime,
the former syscall is used.
 2016-05-09 11:05:45 +02:00
Adhemerval Zanella
0cb313f7cb Fix clone (CLONE_VM) pid/tid reset (BZ#19957) 
As discussed in libc-alpha [1] current clone with CLONE_VM (without
CLONE_THREAD set) will reset the pthread pid/tid fields to -1.  The
issue is since memory is shared between the parent and child it will
clobber parent's cached pid/tid leading to internal inconsistencies
if the value is not restored.

And even it is restored it may lead to racy conditions when between
set/restore a thread might invoke pthread function that validate the
pthread with INVALID_TD_P/INVALID_NOT_TERMINATED_TD_P and thus get
wrong results.

As stated in BZ19957, previously reports of this behaviour was close
with EWONTFIX due the fact usage of clone outside glibc is tricky
since glibc requires consistent internal pthread, while using clone
directly may not provide it. However since now posix_spawn uses
clone (CLONE_VM) to fixes various issues related to previous vfork
usage this issue requires fixing.

The vfork implementation also does something similar, but instead
it negates and restores only the *pid* field and functions that
might access its value know to handle such case (getpid, raise
and pthread ones that uses INVALID_TD_P/INVALID_NOT_TERMINATED_TD_P
macros that check only *tid* field).  Also vfork does not call
__clone directly, instead calling either __NR_vfork or __NR_clone
directly.

So this patch removes this clone behavior by avoiding setting
the pthread pid/tid field for CLONE_VM. There is no need to
check for CLONE_THREAD, since the minimum supported kernel in all
architecture implies that CLONE_VM must be used with CLONE_THREAD,
otherwise clone returns EINVAL.

Instead of current approach of:

   int clone(int (*fn)(void *), void *child_stack, int flags, ...)
      [...]
      if (flags & CLONE_THREAD)
        goto do_syscall;
      pid_t new_value;
      if (flags & CLONE_VM)
        new_value = -1;
      else
        new_value = getpid ();
      THREAD_SETMEM (THREAD_SELF, pid, new_value);
      THREAD_SETMEM (THREAD_SELF, tid, new_value);

    do_syscall:
      [...]

The new approach uses:

   int clone(int (*fn)(void *), void *child_stack, int flags, ...)
      [...]
      if (flags & CLONE_VM)
        goto do_syscall;
      pid_t new_value = getpid ();
      THREAD_SETMEM (THREAD_SELF, pid, new_value);
      THREAD_SETMEM (THREAD_SELF, tid, new_value);

    do_syscall:
      [...]

It also removes the linux tst-getpid2.c test which expects the previous
behavior and instead add another clone test.

Tested on x86_64, i686, x32, powerpc64le, aarch64, armhf, s390, and
s390x. I also did limited check on mips32 and sparc64 (using the new
added test).

I also got reviews from both m68k, hppa, and tile.  So I presume for
these architecture the patch works.

The fixes for alpha, microblaze, sh, ia64, and nio2 have not been
tested.

[1] https://sourceware.org/ml/libc-alpha/2016-04/msg00307.html

	* sysdeps/unix/sysv/linux/Makefile [$(subdir) == nptl] (test): Remove
	tst-getpid2.
	(test): Add tst-clone2.
	* sysdeps/unix/sysv/linux/tst-clone2.c: New file.
	* sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Do not change
	pid/tid fields for CLONE_VM.
	* sysdeps/unix/sysv/linux/arm/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/tst-getpid2.c: Remove file.
 2016-04-29 18:19:30 -03:00
Adhemerval Zanella
9ff72da471 posix: New Linux posix_spawn{p} implementation 
This patch implements a new posix_spawn{p} implementation for Linux.  The main
difference is it uses the clone syscall directly with CLONE_VM and CLONE_VFORK
flags and a direct allocated stack.  The new stack and start function solves
most the vfork limitation (possible parent clobber due stack spilling).  The
remaning issue are related to signal handling:

  1. That no signal handlers must run in child context, to avoid corrupt
     parent's state.
  2. Child must synchronize with parent to enforce stack deallocation and
     to possible return execv issues.

The first one is solved by blocking all signals in child, even NPTL-internal
ones (SIGCANCEL and SIGSETXID).  The second issue is done by a stack allocation
in parent and a synchronization with using a pipe or waitpid (in case or error).
The pipe has the advantage of allowing the child signal an exec error (checked
with new tst-spawn2 test).

There is an inherent race condition in pipe2 usage for architectures that do not
support the syscall directly.  In such cases the a pipe plus fctnl is used
instead and it may lead to file descriptor leak in parent (as decribed by fcntl
documentation).

The child process stack is allocate with a mmap with MAP_STACK flag using
default architecture stack size.  Although it is slower than use a stack buffer
from parent, it allows some slack for the compatibility code to run scripts
with no shebang (which may use a buffer with size depending of argument list
count).

Performance should be similar to the vfork default posix implementation and
way faster than fork path (vfork on mostly linux ports are basically
clone with CLONE_VM plus CLONE_VFORK).  The only difference is the syscalls
required for the stack allocation/deallocation.

It fixes BZ#10354, BZ#14750, and BZ#18433.

Tested on i386, x86_64, powerpc64le, and aarch64.

	[BZ #14750]
	[BZ #10354]
	[BZ #18433]
	* include/sched.h (__clone): Add hidden prototype.
	(__clone2): Likewise.
	* include/unistd.h (__dup): Likewise.
	* posix/Makefile (tests): Add tst-spawn2.
	* posix/tst-spawn2.c: New file.
	* sysdeps/posix/dup.c (__dup): Add hidden definition.
	* sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/sh/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/nptl-signals.h
	(____nptl_is_internal_signal): New function.
	* sysdeps/unix/sysv/linux/spawni.c: New file.
 2016-03-07 11:53:47 +07:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Carlos O'Donell
90fe682d30 Rename localedir to complocaledir (bug 14259). 
In preparation to fix the --localedir configure argument we must
move the existing conflicting definition of localedir to a more
appropriate name. Given that all current internal uses of localedir
relate to the compiled locales we rename to complocaledir.
 2015-11-27 10:22:38 -05:00
Joseph Myers
d709042a6e Fix lgamma setting signgam for ISO C (bug 15421). 
The lgamma (and likewise lgammaf, lgammal) function wrongly sets the
signgam variable even when building for strict ISO C conformance
(-std=c99 / -std=c11), although the user may define such a variable
and it's only in the implementation namespace for POSIX with XSI
extensions enabled.

Following discussions starting at
<https://sourceware.org/ml/libc-alpha/2013-04/msg00767.html> and
<https://sourceware.org/ml/libc-alpha/2015-10/msg00844.html>, it seems
that the safest approach for fixing this particular issue is for
signgam to become a weak alias for a newly exported symbol __signgam,
with the library functions only setting __signgam, at which point
static linker magic will preserve the alias for newly linked binaries
that refer to the library's signgam rather than defining their own,
while breaking the alias for programs that define their own signgam,
with new symbol versions for lgamma functions and with compat symbols
for existing binaries that set both signgam and __signgam.

This patch implements that approach for the fix.  signgam is made into
a weak alias.  The four symbols __signgam, lgamma, lgammaf, lgammal
get new symbol versions at version GLIBC_2.23, with the existing
versions of lgamma, lgammaf and lgammal becoming compat symbols.

When the compat versions are built, gamma, gammaf and gammal are
aliases for the compat versions (i.e. always set signgam); this is OK
as they are not ISO C functions, and avoids adding new symbol versions
for them unnecessarily.  When the compat versions are not built
(i.e. for static linking and for future glibc ports), gamma, gammaf
and gammal are aliases for the new versions that set __signgam.  The
ldbl-opt versions are updated accordingly.

The lgamma wrappers are adjusted so that the same source files,
included from different files with different definitions of
USE_AS_COMPAT, can build either the new versions or the compat
versions.  Similar changes are made to the ia64 versions (untested).

Tests are added that the lgamma functions do not interfere with a user
variable called signgam for ISO C, with various choices for the size
of that variable, whether it is initialized, and for static and
dynamic linking.  The conformtest whitelist entry is removed as well.

Tested for x86_64, x86, mips64 and powerpc, including looking at
objdump --dynamic-syms output to make sure the expected sets of
symbols were aliases.  Also spot-tested that a binary built with old
glibc works properly (i.e. gets signgam set) when run with new glibc.

	[BZ #15421]
	* sysdeps/ieee754/s_signgam.c (signgam): Rename to __signgam,
	initialize with 0 and define as weak alias of __signgam.
	* include/math.h [!_ISOMAC] (__signgam): Declare.
	* math/Makefile (libm-calls): Add w_lgamma_compat.
	(tests): Add test-signgam-uchar, test-signgam-uchar-init,
	test-signgam-uint, test-signgam-uint-init, test-signgam-ullong and
	test-signgam-ullong-init.
	(tests-static): Add test-signgam-uchar-static,
	test-signgam-uchar-init-static, test-signgam-uint-static,
	test-signgam-uint-init-static, test-signgam-ullong-static and
	test-signgam-ullong-init-static.
	(CFLAGS-test-signgam-uchar.c): New variable.
	(CFLAGS-test-signgam-uchar-init.c): Likewise.
	(CFLAGS-test-signgam-uchar-static.c): Likewise.
	(CFLAGS-test-signgam-uchar-init-static.c): Likewise.
	(CFLAGS-test-signgam-uint.c): Likewise.
	(CFLAGS-test-signgam-uint-init.c): Likewise.
	(CFLAGS-test-signgam-uint-static.c): Likewise.
	(CFLAGS-test-signgam-uint-init-static.c): Likewise.
	(CFLAGS-test-signgam-ullong.c): Likewise.
	(CFLAGS-test-signgam-ullong-init.c): Likewise.
	(CFLAGS-test-signgam-ullong-static.c): Likewise.
	(CFLAGS-test-signgam-ullong-init-static.c): Likewise.
	* math/Versions (libm): Add GLIBC_2.23.
	* math/lgamma-compat.h: New file.
	* math/test-signgam-main.c: Likewise.
	* math/test-signgam-uchar-init-static.c: Likewise.
	* math/test-signgam-uchar-init.c: Likewise.
	* math/test-signgam-uchar-static.c: Likewise.
	* math/test-signgam-uchar.c: Likewise.
	* math/test-signgam-uint-init-static.c: Likewise.
	* math/test-signgam-uint-init.c: Likewise.
	* math/test-signgam-uint-static.c: Likewise.
	* math/test-signgam-uint.c: Likewise.
	* math/test-signgam-ullong-init-static.c: Likewise.
	* math/test-signgam-ullong-init.c: Likewise.
	* math/test-signgam-ullong-static.c: Likewise.
	* math/test-signgam-ullong.c: Likewise.
	* math/w_lgamma.c: Rename to w_lgamma_main.c and replace by
	wrapper of w_lgamma_main.c.
	* math/w_lgamma_compat.c: New file.
	* math/w_lgamma_compatf.c: Likewise.
	* math/w_lgamma_compatl.c: Likewise.
	* math/w_lgamma_main.c: New file.  Based on w_lgamma.c.  Include
	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
	defining compatibility symbols.
	(__lgamma): Change to LGFUNC (__lgamma).  Use CALL_LGAMMA.
	* math/w_lgammaf.c: Rename to w_lgammaf_main.c and replace by
	wrapper of w_lgammaf_main.c.
	* math/w_lgammaf_main.c: New file.  Based on w_lgammaf.c.  Include
	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
	defining compatibility symbols.
	(__lgammaf): Change to LGFUNC (__lgammaf).  Use CALL_LGAMMA.
	* math/w_lgammal.c: Rename to w_lgammal_main.c and replace by
	wrapper of w_lgammal_main.c.
	* math/w_lgammal_main.c: New file.  Based on w_lgammal.c.  Include
	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
	defining compatibility symbols.
	(__lgammal): Change to LGFUNC (__lgammal).  Use CALL_LGAMMA.
	* sysdeps/ia64/fpu/lgamma-compat.h: New file.
	* sysdeps/ia64/fpu/w_lgamma.c: Move to ....
	* sysdeps/ia64/fpu/w_lgamma_main.c: ...here.  Include
	<lgamma-compat.h>.
	(__ieee754_lgamma): Change to LGFUNC (lgamma).  Use CALL_LGAMMA.
	(__ieee754_gamma): Define as alias.
	* sysdeps/ia64/fpu/w_lgammaf.c: Move to ....
	* sysdeps/ia64/fpu/w_lgammaf_main.c: ...here.  Include
	<lgamma-compat.h>.
	(__ieee754_lgammaf): Change to LGFUNC (lgammaf).  Use CALL_LGAMMA.
	(__ieee754_gammaf): Define as alias.
	* sysdeps/ia64/fpu/w_lgammal.c: Move to ....
	* sysdeps/ia64/fpu/w_lgammal_main.c: ...here.  Include
	<lgamma-compat.h>.
	(__ieee754_lgammal): Change to LGFUNC (lgammal).  Use CALL_LGAMMA.
	(__ieee754_gammal): Define as alias.
	* sysdeps/ieee754/ldbl-opt/w_lgamma.c: Move to ....
	* sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c: ...here.  Include
	<math/w_lgamma_compat.c>.
	[LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)] (__lgammal_dbl_compat):
	Define as alias of __lgamma_compat and use in defining lgammal.
	* sysdeps/ieee754/ldbl-opt/w_lgammal.c: Move to ....
	* sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c: ...here.  Include
	<math/lgamma-compat.h> and <math/w_lgamma_compatl.c>.
	(USE_AS_COMPAT): New macro.
	(LGAMMA_OLD_VER): Undefine and redefine.
	(lgammal): Do not define here.
	(gammal): Only define here if [GAMMA_ALIAS].
	* conform/linknamespace.pl (@whitelist): Remove signgam.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2015-11-20 22:49:59 +00:00
Stefan Liebler
31cf39421b S390: Use __asm__ instead of asm. 
* sysdeps/s390/fpu/bits/mathinline.h:
	Use __asm__ [__volatile__] instead of asm [volatile].
	* sysdeps/s390/abort-instr.h: Likewise.
	* sysdeps/s390/atomic-machine.h: Likewise.
	* sysdeps/s390/bits/string.h: Likewise.
	* sysdeps/s390/dl-tls.h: Likewise.
	* sysdeps/s390/fpu/e_sqrt.c: Likewise.
	* sysdeps/s390/fpu/e_sqrtf.c: Likewise.
	* sysdeps/s390/fpu/e_sqrtl.c: Likewise.
	* sysdeps/s390/fpu/fesetround.c: Likewise.
	* sysdeps/s390/fpu/fpu_control.h: Likewise.
	* sysdeps/s390/fpu/s_fma.c: Likewise.
	* sysdeps/s390/fpu/s_fmaf.c: Likewise.
	* sysdeps/s390/memusage.h: Likewise.
	* sysdeps/s390/multiarch/ifunc-resolve.h: Likewise.
	* sysdeps/s390/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/s390/nptl/pthread_spin_trylock.c: Likewise.
	* sysdeps/s390/nptl/pthread_spin_unlock.c: Likewise.
	* sysdeps/s390/nptl/tls.h: Likewise.
	* sysdeps/s390/s390-32/__longjmp.c: Likewise.
	* sysdeps/s390/s390-32/backtrace.c: Likewise.
	* sysdeps/s390/s390-32/dl-machine.h: Likewise.
	* sysdeps/s390/s390-32/multiarch/memcmp.c: Likewise.
	* sysdeps/s390/s390-32/stackguard-macros.h: Likewise.
	* sysdeps/s390/s390-32/tls-macros.h: Likewise.
	* sysdeps/s390/s390-64/__longjmp.c: Likewise.
	* sysdeps/s390/s390-64/backtrace.c: Likewise.
	* sysdeps/s390/s390-64/dl-machine.h: Likewise.
	* sysdeps/s390/s390-64/iso-8859-1_cp037_z900.c: Likewise.
	* sysdeps/s390/s390-64/multiarch/memcmp.c: Likewise.
	* sysdeps/s390/s390-64/stackguard-macros.h: Likewise.
	* sysdeps/s390/s390-64/tls-macros.h: Likewise.
	* sysdeps/s390/s390-64/utf16-utf32-z9.c: Likewise.
	* sysdeps/s390/s390-64/utf8-utf16-z9.c: Likewise.
	* sysdeps/s390/s390-64/utf8-utf32-z9.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/brk.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/elision-trylock.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/sysconf.c: Likewise.
 2015-11-20 08:56:40 +01:00
Stefan Liebler
37d13b179c S390: Clean setjmp, longjmp, getcontext symbols. 
For each function setjmp, longjmp, getcontext, there exist a symbol
<func> and a default/versioned symbol <func>@@GLIBC_2.x in the build
obj-files.
This is wrong because it should only exist an unversioned or a
default-versioned symbol with the same name in an obj-file.
Glibc can't be build with recent binutils. See the already fixed linker
bug https://sourceware.org/bugzilla/show_bug.cgi?id=19073.
Nevertheless, this patch cleans this up.

Furthermore the BSD entry points setjmp, _setjmp were marked as weak,
but should be strong as on other architectures.
(see https://sourceware.org/ml/libc-alpha/2014-07/msg00568.html for an
older discussion with Andreas Schwab)

Some whitespace issues are corrected in sysdeps/s390/s390-64/setjmp.S,
too. But there is no change in the assembler code.

ChangeLog:

	* sysdeps/s390/longjmp.c (longjmp, _longjmp, siglongjmp):
	Don't create weak aliases,
	because versioned symbols are created later.
	* sysdeps/s390/s390-32/setjmp.S
	(setjmp, _setjmp): Remove weak and rename to an unique name
	in SHARED case due to existing versioned symbols.
	* sysdeps/s390/s390-64/setjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
	(getcontext): Create weak alias only in non SHARED case.
	* sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S: Likewise.
 2015-11-09 16:14:49 +01:00
Stefan Liebler
016495b818 S390: Call direct system calls for socket operations. 
this patch calls direct system calls for socket operations in the same way as power does. The system calls were introduced in kernel commit https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=977108f89c989b1eeb5c8d938e1e71913391eb5f.
There are no direct recv, send, accept syscalls available on s390. Thus
recvfrom, sendto, accept4 are called instead of the socketcall by defining __ASSUME_*_FOR_*_SYSCALL macros. See recv.c, send.c, accept.c in sysdeps/unix/sysv/linux/ folder.

The socketcalls in syscalls.list for s390-64 are removed. They were never used on s390x.

ChangeLog:

	* sysdeps/unix/sysv/linux/s390/kernel-features.h:
	(__ASSUME_*_SYSCALL) Define new macros.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list:
	Remove socketcall syscalls.
	* sysdeps/unix/sysv/linux/accept.c (__libc_accept):
	Use accept4 if defined __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL.
	* sysdeps/unix/sysv/linux/recv.c (__libc_recv):
	Use recvfrom if defined __ASSUME_RECVFROM_FOR_RECV_SYSCALL.
	* sysdeps/unix/sysv/linux/send.c (__libc_send):
	Use sendto if defined __ASSUME_SENDTO_FOR_SEND_SYSCALL.
 2015-11-09 16:14:49 +01:00
Florian Weimer
8c77b6ad40 Simplify the abilist format 
The new format lists the version on each line, as in:

	VERSION SYMBOL TYPE [VALUE]

This makes it easier to process the files with line-oriented tools.

The abilist files were converted with this awk script:

/^[^ ]/ { version = $1 }
/^ / { print version, substr($0, 2) }

And sorted under the "C" locale with sort.
 2015-11-06 13:58:53 +01:00
Mark Wielaard
8b7b7f75d9 Add LFS support for fts functions (bug 11460) 
fts didn't have large-file support yet and fts.h had an #error preventing
usage when _FILE_OFFSET_BITS was set. This required nasty workarounds for
programs using fts with LFS. This patch implements LFS support for fts by
adding FTS64 and FTENT64 variants plus fts64 functions. Which are simple
aliases for 64bit off_t arches.

Also includes a simple testcase for some of the fts functions with or
without LFS enabled.

	[BZ #11460]
	* io/Makefile (routines): Add fts64.
	(tests): Add tst-fts and tst-fts-lfs.
	(CFLAGS-fts64.c): New.
	* io/Versions (GLIBC_2.23): New.
	* io/fts.c: Replace FTS with FTSOBJ, FTSENT with FTSENTRY. Use
	function defines FTS_OPEN, FTS_CLOSE, FTS_READ, FTS_SET and
	FTS_CHILDREN. Define FTSOBJ, FTSENTRY, FTS_OPEN, FTS_CLOSE,
	FTS_READ, FTS_SET, FTS_CHILDREN, INO_T, STAT and LSTAT if necessary.
	* io/fts.h (FTS64): New if _USE_LARGEFILE64.
	(FTSENT64): Likewise.
	(fts64_children): Likewise.
	(fts64_close): Likewise.
	(fts64_open): Likewise.
	(fts64_read): Likewise.
	(fts64_set): Likewise.
	* io/fts64.c: New file.
	* io/tst-fts.c: New test.
	* io/tst-fts-lfs.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist (GLIBC_2.23): Add
	GLIBC_2.23, fts64_children, fts64_close, fts64_open, fts64_read and
	fts64_set.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/wordsize-64/fts.c: New file.
	* sysdeps/wordsize-64/fts64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/fts.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/fts64.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/fts.c: likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/fts64.c: likewise.
 2015-11-06 11:24:16 +01:00
Joseph Myers
bd2260a206 Convert 231 sysdeps function definitions to prototype style. 
This mostly automatically-generated patch converts 231 sysdeps
function definitions in glibc from old-style K&R to prototype-style.

For __aio_sigqueue and __gai_sigqueue I had to add internal_function
to the definitions as noted by Florian in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00595.html> to keep
the functions compiling on x86 after conversion to prototype
definitions.  Otherwise, the patch is automatically generated with all
the same exclusions and caveats as in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00594.html> except
that it's a patch for sysdeps files.

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).  Also tested for arm,
mips64 and powerpc32 that installed stripped shared libraries are
unchanged by the patch.

	* sysdeps/arm/backtrace.c (__backtrace): Convert to
	prototype-style function definition.
	* sysdeps/i386/backtrace.c (__backtrace): Likewise.
	* sysdeps/i386/ffs.c (__ffs): Likewise.
	* sysdeps/i386/i686/ffs.c (__ffs): Likewise.
	* sysdeps/ia64/nptl/pthread_spin_lock.c (pthread_spin_lock):
	Likewise.
	* sysdeps/ia64/nptl/pthread_spin_trylock.c (pthread_spin_trylock):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_log2l.c (__ieee754_log2l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_log2l.c (__ieee754_log2l):
	Likewise.
	* sysdeps/m68k/ffs.c (__ffs): Likewise.
	* sysdeps/m68k/m680x0/fpu/e_acos.c (FUNC): Likewise.
	* sysdeps/m68k/m680x0/fpu/e_fmod.c (FUNC): Likewise.
	* sysdeps/mach/adjtime.c (__adjtime): Likewise.
	* sysdeps/mach/gettimeofday.c (__gettimeofday): Likewise.
	* sysdeps/mach/hurd/_exit.c (_exit): Likewise.
	* sysdeps/mach/hurd/access.c (__access): Likewise.
	* sysdeps/mach/hurd/adjtime.c (__adjtime): Likewise.
	* sysdeps/mach/hurd/chdir.c (__chdir): Likewise.
	* sysdeps/mach/hurd/chmod.c (__chmod): Likewise.
	* sysdeps/mach/hurd/chown.c (__chown): Likewise.
	* sysdeps/mach/hurd/cthreads.c (cthread_keycreate): Likewise.
	(cthread_getspecific): Likewise.
	(cthread_setspecific): Likewise.
	(__libc_getspecific): Likewise.
	* sysdeps/mach/hurd/euidaccess.c (__euidaccess): Likewise.
	* sysdeps/mach/hurd/faccessat.c (faccessat): Likewise.
	* sysdeps/mach/hurd/fchdir.c (__fchdir): Likewise.
	* sysdeps/mach/hurd/fchmod.c (__fchmod): Likewise.
	* sysdeps/mach/hurd/fchmodat.c (fchmodat): Likewise.
	* sysdeps/mach/hurd/fchown.c (__fchown): Likewise.
	* sysdeps/mach/hurd/fchownat.c (fchownat): Likewise.
	* sysdeps/mach/hurd/flock.c (__flock): Likewise.
	* sysdeps/mach/hurd/fsync.c (fsync): Likewise.
	* sysdeps/mach/hurd/ftruncate.c (__ftruncate): Likewise.
	* sysdeps/mach/hurd/getgroups.c (__getgroups): Likewise.
	* sysdeps/mach/hurd/gethostname.c (__gethostname): Likewise.
	* sysdeps/mach/hurd/getitimer.c (__getitimer): Likewise.
	* sysdeps/mach/hurd/getlogin_r.c (__getlogin_r): Likewise.
	* sysdeps/mach/hurd/getpgid.c (__getpgid): Likewise.
	* sysdeps/mach/hurd/getrusage.c (__getrusage): Likewise.
	* sysdeps/mach/hurd/getsockname.c (__getsockname): Likewise.
	* sysdeps/mach/hurd/group_member.c (__group_member): Likewise.
	* sysdeps/mach/hurd/isatty.c (__isatty): Likewise.
	* sysdeps/mach/hurd/lchown.c (__lchown): Likewise.
	* sysdeps/mach/hurd/link.c (__link): Likewise.
	* sysdeps/mach/hurd/linkat.c (linkat): Likewise.
	* sysdeps/mach/hurd/listen.c (__listen): Likewise.
	* sysdeps/mach/hurd/mkdir.c (__mkdir): Likewise.
	* sysdeps/mach/hurd/mkdirat.c (mkdirat): Likewise.
	* sysdeps/mach/hurd/openat.c (__openat): Likewise.
	* sysdeps/mach/hurd/poll.c (__poll): Likewise.
	* sysdeps/mach/hurd/readlink.c (__readlink): Likewise.
	* sysdeps/mach/hurd/readlinkat.c (readlinkat): Likewise.
	* sysdeps/mach/hurd/recv.c (__recv): Likewise.
	* sysdeps/mach/hurd/rename.c (rename): Likewise.
	* sysdeps/mach/hurd/renameat.c (renameat): Likewise.
	* sysdeps/mach/hurd/revoke.c (revoke): Likewise.
	* sysdeps/mach/hurd/rewinddir.c (__rewinddir): Likewise.
	* sysdeps/mach/hurd/rmdir.c (__rmdir): Likewise.
	* sysdeps/mach/hurd/seekdir.c (seekdir): Likewise.
	* sysdeps/mach/hurd/send.c (__send): Likewise.
	* sysdeps/mach/hurd/setdomain.c (setdomainname): Likewise.
	* sysdeps/mach/hurd/setegid.c (setegid): Likewise.
	* sysdeps/mach/hurd/seteuid.c (seteuid): Likewise.
	* sysdeps/mach/hurd/setgid.c (__setgid): Likewise.
	* sysdeps/mach/hurd/setgroups.c (setgroups): Likewise.
	* sysdeps/mach/hurd/sethostid.c (sethostid): Likewise.
	* sysdeps/mach/hurd/sethostname.c (sethostname): Likewise.
	* sysdeps/mach/hurd/setlogin.c (setlogin): Likewise.
	* sysdeps/mach/hurd/setpgid.c (__setpgid): Likewise.
	* sysdeps/mach/hurd/setregid.c (__setregid): Likewise.
	* sysdeps/mach/hurd/setreuid.c (__setreuid): Likewise.
	* sysdeps/mach/hurd/settimeofday.c (__settimeofday): Likewise.
	* sysdeps/mach/hurd/setuid.c (__setuid): Likewise.
	* sysdeps/mach/hurd/shutdown.c (shutdown): Likewise.
	* sysdeps/mach/hurd/sigaction.c (__sigaction): Likewise.
	* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
	* sysdeps/mach/hurd/sigpending.c (sigpending): Likewise.
	* sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise.
	* sysdeps/mach/hurd/sigsuspend.c (__sigsuspend): Likewise.
	* sysdeps/mach/hurd/socket.c (__socket): Likewise.
	* sysdeps/mach/hurd/symlink.c (__symlink): Likewise.
	* sysdeps/mach/hurd/symlinkat.c (symlinkat): Likewise.
	* sysdeps/mach/hurd/telldir.c (telldir): Likewise.
	* sysdeps/mach/hurd/truncate.c (__truncate): Likewise.
	* sysdeps/mach/hurd/umask.c (__umask): Likewise.
	* sysdeps/mach/hurd/unlink.c (__unlink): Likewise.
	* sysdeps/mach/hurd/unlinkat.c (unlinkat): Likewise.
	* sysdeps/mips/mips64/__longjmp.c (__longjmp): Likewise.
	* sysdeps/posix/alarm.c (alarm): Likewise.
	* sysdeps/posix/cuserid.c (cuserid): Likewise.
	* sysdeps/posix/dirfd.c (dirfd): Likewise.
	* sysdeps/posix/dup.c (__dup): Likewise.
	* sysdeps/posix/dup2.c (__dup2): Likewise.
	* sysdeps/posix/euidaccess.c (euidaccess): Likewise.
	(main): Likewise.
	* sysdeps/posix/flock.c (__flock): Likewise.
	* sysdeps/posix/fpathconf.c (__fpathconf): Likewise.
	* sysdeps/posix/getcwd.c (__getcwd): Likewise.
	* sysdeps/posix/gethostname.c (__gethostname): Likewise.
	* sysdeps/posix/gettimeofday.c (__gettimeofday): Likewise.
	* sysdeps/posix/isatty.c (__isatty): Likewise.
	* sysdeps/posix/killpg.c (killpg): Likewise.
	* sysdeps/posix/libc_fatal.c (__libc_fatal): Likewise.
	* sysdeps/posix/mkfifoat.c (mkfifoat): Likewise.
	* sysdeps/posix/raise.c (raise): Likewise.
	* sysdeps/posix/remove.c (remove): Likewise.
	* sysdeps/posix/rename.c (rename): Likewise.
	* sysdeps/posix/rewinddir.c (__rewinddir): Likewise.
	* sysdeps/posix/seekdir.c (seekdir): Likewise.
	* sysdeps/posix/sigblock.c (__sigblock): Likewise.
	* sysdeps/posix/sigignore.c (sigignore): Likewise.
	* sysdeps/posix/sigintr.c (siginterrupt): Likewise.
	* sysdeps/posix/signal.c (__bsd_signal): Likewise.
	* sysdeps/posix/sigset.c (sigset): Likewise.
	* sysdeps/posix/sigsuspend.c (__sigsuspend): Likewise.
	* sysdeps/posix/sysconf.c (__sysconf): Likewise.
	* sysdeps/posix/sysv_signal.c (__sysv_signal): Likewise.
	* sysdeps/posix/time.c (time): Likewise.
	* sysdeps/posix/ttyname.c (getttyname): Likewise.
	(ttyname): Likewise.
	* sysdeps/posix/ttyname_r.c (__ttyname_r): Likewise.
	* sysdeps/posix/utime.c (utime): Likewise.
	* sysdeps/powerpc/fpu/s_isnan.c (__isnan): Likewise.
	* sysdeps/powerpc/nptl/pthread_spin_lock.c (pthread_spin_lock):
	Likewise.
	* sysdeps/powerpc/nptl/pthread_spin_trylock.c
	(pthread_spin_trylock): Likewise.
	* sysdeps/pthread/aio_error.c (aio_error): Likewise.
	* sysdeps/pthread/aio_read.c (aio_read): Likewise.
	* sysdeps/pthread/aio_read64.c (aio_read64): Likewise.
	* sysdeps/pthread/aio_write.c (aio_write): Likewise.
	* sysdeps/pthread/aio_write64.c (aio_write64): Likewise.
	* sysdeps/pthread/flockfile.c (__flockfile): Likewise.
	* sysdeps/pthread/ftrylockfile.c (__ftrylockfile): Likewise.
	* sysdeps/pthread/funlockfile.c (__funlockfile): Likewise.
	* sysdeps/pthread/timer_create.c (timer_create): Likewise.
	* sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Likewise.
	* sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise.
	* sysdeps/s390/ffs.c (__ffs): Likewise.
	* sysdeps/s390/nptl/pthread_spin_lock.c (pthread_spin_lock):
	Likewise.
	* sysdeps/s390/nptl/pthread_spin_trylock.c (pthread_spin_trylock):
	Likewise.
	* sysdeps/sh/nptl/pthread_spin_lock.c (pthread_spin_lock):
	Likewise.
	* sysdeps/sparc/nptl/pthread_barrier_destroy.c
	(pthread_barrier_destroy): Likewise.
	* sysdeps/sparc/nptl/pthread_barrier_wait.c
	(__pthread_barrier_wait): Likewise.
	* sysdeps/sparc/sparc32/e_sqrt.c (__ieee754_sqrt): Likewise.
	* sysdeps/sparc/sparc32/pthread_barrier_wait.c
	(__pthread_barrier_wait): Likewise.
	* sysdeps/sparc/sparc32/sem_init.c (__old_sem_init): Likewise.
	* sysdeps/tile/memcmp.c (memcmp_common_alignment): Likewise.
	(memcmp_not_common_alignment): Likewise.
	(MEMCMP): Likewise.
	* sysdeps/tile/wordcopy.c (_wordcopy_fwd_aligned): Likewise.
	(_wordcopy_fwd_dest_aligned): Likewise.
	(_wordcopy_bwd_aligned): Likewise.
	(_wordcopy_bwd_dest_aligned): Likewise.
	* sysdeps/unix/bsd/ftime.c (ftime): Likewise.
	* sysdeps/unix/bsd/gtty.c (gtty): Likewise.
	* sysdeps/unix/bsd/stty.c (stty): Likewise.
	* sysdeps/unix/bsd/tcflow.c (tcflow): Likewise.
	* sysdeps/unix/bsd/tcflush.c (tcflush): Likewise.
	* sysdeps/unix/bsd/tcgetattr.c (__tcgetattr): Likewise.
	* sysdeps/unix/bsd/tcgetpgrp.c (tcgetpgrp): Likewise.
	* sysdeps/unix/bsd/tcsendbrk.c (tcsendbreak): Likewise.
	* sysdeps/unix/bsd/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/unix/bsd/tcsetpgrp.c (tcsetpgrp): Likewise.
	* sysdeps/unix/bsd/ualarm.c (ualarm): Likewise.
	* sysdeps/unix/bsd/wait3.c (__wait3): Likewise.
	* sysdeps/unix/getlogin_r.c (__getlogin_r): Likewise.
	* sysdeps/unix/sockatmark.c (sockatmark): Likewise.
	* sysdeps/unix/stime.c (stime): Likewise.
	* sysdeps/unix/sysv/linux/_exit.c (_exit): Likewise.
	* sysdeps/unix/sysv/linux/aio_sigqueue.c (__aio_sigqueue):
	Likewise.  Use internal_function.
	* sysdeps/unix/sysv/linux/arm/sigaction.c (__libc_sigaction):
	Convert to prototype-style function definition.
	* sysdeps/unix/sysv/linux/faccessat.c (faccessat): Likewise.
	* sysdeps/unix/sysv/linux/fchmodat.c (fchmodat): Likewise.
	* sysdeps/unix/sysv/linux/fpathconf.c (__fpathconf): Likewise.
	* sysdeps/unix/sysv/linux/gai_sigqueue.c (__gai_sigqueue):
	Likewise.  Use internal_function.
	* sysdeps/unix/sysv/linux/gethostid.c (sethostid): Convert to
	prototype-style function definition
	* sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid):
	Likewise.
	(__getlogin_r): Likewise.
	* sysdeps/unix/sysv/linux/getpt.c (__posix_openpt): Likewise.
	* sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
	(__pthread_cond_broadcast): Likewise.
	* sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
	(__pthread_cond_destroy): Likewise.
	* sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
	(__pthread_cond_init): Likewise.
	* sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
	(__pthread_cond_signal): Likewise.
	* sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
	(__pthread_cond_wait): Likewise.
	* sysdeps/unix/sysv/linux/i386/getmsg.c (getmsg): Likewise.
	* sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigaction.c (__libc_sigaction):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigpending.c (sigpending):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/sigaction.c (__libc_sigaction):
	Likewise.
	* sysdeps/unix/sysv/linux/msgget.c (msgget): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ftruncate64.c
	(__ftruncate64): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/truncate64.c
	(truncate64): Likewise.
	* sysdeps/unix/sysv/linux/pt-raise.c (raise): Likewise.
	* sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
	(pthread_getcpuclockid): Likewise.
	* sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np):
	Likewise.
	* sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np):
	Likewise.
	* sysdeps/unix/sysv/linux/pthread_sigmask.c (pthread_sigmask):
	Likewise.
	* sysdeps/unix/sysv/linux/pthread_sigqueue.c (pthread_sigqueue):
	Likewise.
	* sysdeps/unix/sysv/linux/raise.c (raise): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c
	(__libc_sigaction): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigpending.c (sigpending):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c
	(__sigprocmask): Likewise.
	* sysdeps/unix/sysv/linux/semget.c (semget): Likewise.
	* sysdeps/unix/sysv/linux/semop.c (semop): Likewise.
	* sysdeps/unix/sysv/linux/setrlimit64.c (setrlimit64): Likewise.
	* sysdeps/unix/sysv/linux/shmat.c (shmat): Likewise.
	* sysdeps/unix/sysv/linux/shmdt.c (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/shmget.c (shmget): Likewise.
	* sysdeps/unix/sysv/linux/sigaction.c (__libc_sigaction):
	Likewise.
	* sysdeps/unix/sysv/linux/sigpending.c (sigpending): Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask): Likewise.
	* sysdeps/unix/sysv/linux/sigqueue.c (__sigqueue): Likewise.
	* sysdeps/unix/sysv/linux/sigstack.c (sigstack): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c (sigpending):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
	(__sigprocmask): Likewise.
	* sysdeps/unix/sysv/linux/speed.c (cfgetospeed): Likewise.
	(cfgetispeed): Likewise.
	(cfsetospeed): Likewise.
	(cfsetispeed): Likewise.
	* sysdeps/unix/sysv/linux/tcflow.c (tcflow): Likewise.
	* sysdeps/unix/sysv/linux/tcflush.c (tcflush): Likewise.
	* sysdeps/unix/sysv/linux/tcgetattr.c (__tcgetattr): Likewise.
	* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/unix/sysv/linux/time.c (time): Likewise.
	* sysdeps/unix/sysv/linux/timer_create.c (timer_create): Likewise.
	* sysdeps/unix/sysv/linux/timer_delete.c (timer_delete): Likewise.
	* sysdeps/unix/sysv/linux/timer_getoverr.c (timer_getoverrun):
	Likewise.
	* sysdeps/unix/sysv/linux/timer_gettime.c (timer_gettime):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigpending.c (sigpending):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask):
	Likewise.
	* sysdeps/x86_64/backtrace.c (__backtrace): Likewise.
 2015-10-19 12:04:33 +00:00
H.J. Lu
fb1cf10811 Add INLINE_SYSCALL_ERROR_RETURN_VALUE 
For ia32 PIC, the first thing of many syscalls does is to call
__x86.get_pc_thunk.reg to load PC into reg in case there is an error,
which is required for setting errno.  In most cases, there are no
errors.  But we still call __x86.get_pc_thunk.reg.  This patch adds
INLINE_SYSCALL_ERROR_RETURN_VALUE so that i386 can optimize setting
errno by branching to the internal __syscall_error without PLT.

With i386 INLINE_SYSCALL_ERROR_RETURN_VALUE and i386 syscall inlining
optimization for GCC 5, for sysdeps/unix/sysv/linux/fchmodat.c with
-O2 -march=i686 -mtune=generic, GCC 5.2 now generates:

<fchmodat>:
   0:	push   %ebx
   1:	mov    0x14(%esp),%eax
   5:	mov    0x8(%esp),%ebx
   9:	mov    0xc(%esp),%ecx
   d:	mov    0x10(%esp),%edx
  11:	test   $0xfffffeff,%eax
  16:	jne    38 <fchmodat+0x38>
  18:	test   $0x1,%ah
  1b:	jne    48 <fchmodat+0x48>
  1d:	mov    $0x132,%eax
  22:	call   *%gs:0x10
  29:	cmp    $0xfffff000,%eax
  2e:	ja     58 <fchmodat+0x58>
  30:	pop    %ebx
  31:	ret
  32:	lea    0x0(%esi),%esi
  38:	pop    %ebx
  39:	mov    $0xffffffea,%eax
  3e:	jmp    3f <fchmodat+0x3f>	3f: R_386_PC32	__syscall_error
  43:	nop
  44:	lea    0x0(%esi,%eiz,1),%esi
  48:	pop    %ebx
  49:	mov    $0xffffffa1,%eax
  4e:	jmp    4f <fchmodat+0x4f>	4f: R_386_PC32	__syscall_error
  53:	nop
  54:	lea    0x0(%esi,%eiz,1),%esi
  58:	pop    %ebx
  59:	jmp    5a <fchmodat+0x5a>	5a: R_386_PC32	__syscall_error

instead of

<fchmodat>:
   0:	sub    $0x8,%esp
   3:	mov    0x18(%esp),%eax
   7:	mov    %ebx,(%esp)
   a:	call   b <fchmodat+0xb>	b: R_386_PC32	__x86.get_pc_thunk.bx
   f:	add    $0x2,%ebx	11: R_386_GOTPC	_GLOBAL_OFFSET_TABLE_
  15:	mov    %edi,0x4(%esp)
  19:	test   $0xfffffeff,%eax
  1e:	jne    70 <fchmodat+0x70>
  20:	test   $0x1,%ah
  23:	jne    88 <fchmodat+0x88>
  25:	mov    0x14(%esp),%edx
  29:	mov    0x10(%esp),%ecx
  2d:	mov    0xc(%esp),%edi
  31:	xchg   %ebx,%edi
  33:	mov    $0x132,%eax
  38:	call   *%gs:0x10
  3f:	xchg   %edi,%ebx
  41:	cmp    $0xfffff000,%eax
  46:	ja     58 <fchmodat+0x58>
  48:	mov    (%esp),%ebx
  4b:	mov    0x4(%esp),%edi
  4f:	add    $0x8,%esp
  52:	ret
  53:	nop
  54:	lea    0x0(%esi,%eiz,1),%esi
  58:	mov    0x0(%ebx),%edx	5a: R_386_TLS_GOTIE	__libc_errno
  5e:	neg    %eax
  60:	mov    %eax,%gs:(%edx)
  63:	mov    $0xffffffff,%eax
  68:	jmp    48 <fchmodat+0x48>
  6a:	lea    0x0(%esi),%esi
  70:	mov    0x0(%ebx),%eax	72: R_386_TLS_GOTIE	__libc_errno
  76:	movl   $0x16,%gs:(%eax)
  7d:	mov    $0xffffffff,%eax
  82:	jmp    48 <fchmodat+0x48>
  84:	lea    0x0(%esi,%eiz,1),%esi
  88:	mov    0x0(%ebx),%eax	8a: R_386_TLS_GOTIE	__libc_errno
  8e:	movl   $0x5f,%gs:(%eax)
  95:	mov    $0xffffffff,%eax
  9a:	jmp    48 <fchmodat+0x48>

	* sysdeps/unix/sysv/linux/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/i386/sysdep.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep.h: Include
	<sysdeps/unix/sysv/linux/sysdep.h>.
	* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/generic/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == csu]
	(sysdep-dl-routines): Add sysdep.
	[$(subdir) == nptl] (libpthread-routines): Likewise.
	[$(subdir) == rt] (librt-routines): Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S (__clone): Don't check
	PIC when branching to SYSCALL_ERROR_LABEL.
	* sysdeps/unix/sysv/linux/i386/sysdep.S: Removed.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Include
	<sysdeps/unix/sysv/linux/sysdep.h>.
	(SYSCALL_ERROR_LABEL): Changed to __syscall_error.
	(SYSCALL_ERROR_ERRNO): Removed.
	(SYSCALL_ERROR_HANDLER): Changed to empty.
	(SYSCALL_ERROR_HANDLER_TLS_STORE): Likewise.
	(__syscall_error): New prototype.
	[IS_IN (libc)] (INLINE_SYSCALL): New macro.
	(INLINE_SYSCALL_ERROR_RETURN_VALUE): Likewise.
 2015-10-13 11:59:15 -07:00
Adhemerval Zanella
fdb7d390dd libio: fmemopen rewrite to POSIX compliance 
This patch added a new fmemopen version, for glibc 2.22, that aims to be
POSIX complaint.  It fixes some long-stading glibc fmemopen issues, such
as:

* it changes the way fseek with SEEK_END works on fmemopen to seek
  relative to buffer size instead of first '\0'.  This is default mode and
  'b' opening mode does not change internal behavior (bz#6544).

* fix apending opening mode to use as start position either first null
  byte of len specified in function call (bz#13152 and #13151).

* remove binary option 'b' and internal different handling (bz#12836)

* fix seek/SEE_END with negative values (bz#14292).

A compatibility symbol is provided to with old behavior for older symbols
version (2.2.5).

	* include/stdio.h (fmemopen): Remove hidden prototype.
	(__fmemopen): Add new hidden prototype.
	* libio/Makefile: Add oldfmemopen object.
	* libio/Versions [GLIBC_2.22]: Add new fmemopen symbol.
	* libio/fmemopen.c (__fmemopen): Function rewrite to be POSIX
	compliance.
	* libio/oldfmemopen.c: New file: old fmemopen implementation for
	symbol compatibility.
	* stdio-common/Makefile [tests]: Add new tst-fmemopen3.
	* stdio-common/psiginfo.c [psiginfo]: Call __fmemopen instead of
	fmemopen.
	* stdio-common/tst-fmemopen3.c: New file: more fmemopen tests, focus
	on append and read mode.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist [GLIBC_2.22]: Add
	fmemopen.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist [GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/arm/libc.abilist [GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist [GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/sh/libc.abilist [GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist
	[GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist [GLIBC_2.22]:
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/libc.abilist [GLIBC_2.22]: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libc.abilist [GLIBC_2.22]: Likewise.
 2015-07-08 12:07:21 -03:00
Stefan Liebler
890b7a4b33 S390: Fix "backtrace() returns infinitely deep stack frames with makecontext()" [BZ #18508]. 
On s390/s390x backtrace(buffer, size) returns the series of called functions until
"makecontext_ret" and additional entries (up to "size") with "makecontext_ret".
GDB-backtrace is also warning:
"Backtrace stopped: previous frame identical to this frame (corrupt stack?)"

To reproduce this scenario you have to setup a new context with makecontext()
and activate it with setcontext(). See e.g. cf() function in testcase stdlib/tst-makecontext.c.
Or see bug in libgo "Bug 66303 - runtime.Caller() returns infinitely deep stack frames
on s390x " (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66303).

This patch omits the cfi_startproc/cfi_endproc directives in ENTRY/END macro of
__makecontext_ret. Thus no frame information is generated in .eh_frame and backtrace
stops after __makecontext_ret. There is also no .eh_frame info for _start or
thread_start functions.

ChangeLog:

	[BZ #18508]
	* stdlib/Makefile ($(objpfx)tst-makecontext3):
	Depend on $(libdl).
	* stdlib/tst-makecontext.c (cf): Test if _Unwind_Backtrace
	is not called infinitely times.
	(backtrace_helper): New function.
	(trace_arg): New struct.
	(st1): Enlarge stack size.
	* sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S:
	(__makecontext_ret): Omit cfi_startproc and cfi_endproc.
	* sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S:
	Likewise.
 2015-07-07 16:11:14 +02:00
Adhemerval Zanella
97554e4382 Consolidate gettimeofday across aarch64/s390/tile 
This patch removes the architecture specific gettimeofday implementation
to use the vDSO symbol and consolidate it on a common Linux one.
Similar to clock_gettime and clock_getres vDSO implementation, each port
that supports gettimeofday through vDSO should just implement INLINE_VSYSCALL
to access the symbol and define HAVE_{GETTIME,GETRES}_VSYSCAL as 1.
 2015-05-26 17:03:35 -03:00
Adhemerval Zanella
f534255e4d Consolidate vDSO macros and usage 
This patch consolidate the Linux vDSO define and usage across all ports
that uses it.  The common vDSO definitions and calling through
{INLINE/INTERNAL}_VSYSCALL macros are moved to a common header
sysdep-vdso.h and vDSO name declaration and prototype is defined
using a common macro.

Also PTR_{MANGLE,DEMANGLE} is added to ports that does not use them
for vDSO calls (aarch64, powerpc, s390, and tile) and thus it will
reflect in code changes.  For ports that already implement pointer
mangling/demangling in vDSO system (i386, x32, x86_64) this patch
is mainly a code refactor.

Checked on x32, x86_64, x32, ppc64le, and aarch64.
 2015-05-26 10:10:36 -03:00
Adhemerval Zanella
60dce8b904 Remove socket.S implementation 
This patch removes the socket.S implementation for all ports and replace
it by a C implementation using socketcall.  For ports that implement
the syscall directly, there is no change.

The patch idea is to simplify the socket function implementation that
uses the socketcall to be based on C implemetation instead of a pseudo
assembly implementation with arch specific parts.  The patch then remove
the assembly implementatation for the ports which uses socketcall
(i386, microblaze, mips, powerpc, sparc, m68k, s390 and sh).

I have cross-build GLIBC for afore-mentioned ports and tested on both
i386 and ppc32 without regressions.
 2015-05-22 17:38:06 -03:00
Stefan Liebler
2e807f2959 S/390: Fix setcontext/swapcontext which are not restoring sigmask. 2015-03-12 11:08:11 +01:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Joseph Myers
ea41469b7a Fix profil_counter namespace (bug 17725). 
On ARM, where profil_counter is not static, it is brought in by
references to various standard functions, as noted in
<https://sourceware.org/ml/libc-alpha/2014-11/msg00890.html>, although
it is not a standard function itself.  I don't know if this also
causes test failures on SPARC, although I see no reason for it not to
do so.

This patch fixes this namespace issue.  profil_counter is renamed to
__profil_counter and made a weak alias on ARM and SPARC.  Because of
the uses in profil.c / sprofil.c it seems simplest to make the rename
globally, including on the other architectures for which
profil_counter was static and so the change is of no substance.  The
variant names profil_counter_* used in sprofil.c are also renamed to
start with __ so that undesired function names do not get exported in
static libc.

As I noted in bug 17726, profil_counter should probably be a compat
symbol on ARM and SPARC, so it wouldn't exist at all in static libc
even as a weak alias.  Since defining a compat symbol still requires
an internal name as a target of an alias, this patch still seems
reasonable as an intermediate step towards that goal: it wouldn't be
possible for the function simply to be static profil_counter on ARM
and SPARC with profil_counter also being the exported compat symbol
name, so profil.c / sprofil.c would still need to be prepared to call
the function under another name (here, __profil_counter).

Tested for x86_64 (testsuite, and that stripped installed shared
libraries are unchanged by the patch) and ARM (ABI and linknamespace
tests - this patch reduces the number of linknamespace failures I see
on ARM from 227 to 5, the residue being math.h failures for fe*
functions and for j0l/j1n/jnl/y0l/y1l/ynl aliases).

2014-12-17  Joseph Myers  <joseph@codesourcery.com>

	[BZ #17725]
	* sysdeps/generic/profil-counter.h (profil_counter): Rename to
	__profil_counter.
	* sysdeps/unix/sysv/linux/hppa/profil-counter.h (profil_counter):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/profil-counter.h (profil_counter):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/profil-counter.h (profil_counter):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/profil-counter.h
	(profil_counter): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/profil-counter.h
	(profil_counter): Likewise.
	* sysdeps/unix/sysv/linux/sh/profil-counter.h (profil_counter):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/profil-counter.h (profil_counter):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/profil-counter.h
	(profil_counter): Likewise.
	* sysdeps/unix/sysv/linux/arm/profil-counter.h (profil_counter):
	Likewise.
	[!__profil_counter] (profil_counter): Define as weak alias of
	__profil_counter.
	* sysdeps/unix/sysv/linux/sparc/sparc32/profil-counter.h
	(profil_counter): Rename to __profil_counter.
	[!__profil_counter] (profil_counter): Define as weak alias of
	__profil_counter.
	* sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h
	(profil_counter): Rename to __profil_counter.
	[!__profil_counter] (profil_counter): Define as weak alias of
	__profil_counter.
	* sysdeps/posix/profil.c: Update comment referring to
	profil_counter.
	(__profil): Use __profil_counter instead of profil_counter.
	* sysdeps/posix/sprofil.c (profil_counter): Rename to
	__profil_counter.  Use __profil_counter_ushort and
	__profil_counter_uint in definitions.
	(__sprofil): Use __profil_counter_uint and __profil_counter_ushort
	instead of profil_counter_uint and profil_counter_ushort.
 2014-12-17 18:10:37 +00:00
Siddhesh Poyarekar
4f41c682f3 Remove NOT_IN_libc 
Replace with !IS_IN (libc).  This completes the transition from
the IS_IN/NOT_IN macros to the IN_MODULE macro set.

The generated code is unchanged on x86_64.

	* stdlib/isomac.c (fmt): Replace NOT_IN_libc with IN_MODULE.
	(get_null_defines): Adjust.
	* sunrpc/Makefile: Adjust comment.
	* Makerules (CPPFLAGS-nonlib): Remove NOT_IN_libc.
	* elf/Makefile (CPPFLAGS-sotruss-lib): Likewise.
	(CFLAGS-interp.c): Likewise.
	(CFLAGS-ldconfig.c): Likewise.
	(CPPFLAGS-.os): Likewise.
	* elf/rtld-Rules (rtld-CPPFLAGS): Likewise.
	* extra-lib.mk (CPPFLAGS-$(lib)): Likewise.
	* extra-modules.mk (extra-modules.mk): Likewise.
	* iconv/Makefile (CPPFLAGS-iconvprogs): Likewise.
	* locale/Makefile (CPPFLAGS-locale_programs): Likewise.
	* malloc/Makefile (CPPFLAGS-memusagestat): Likewise.
	* nscd/Makefile (CPPFLAGS-nscd): Likewise.
	* nss/Makefile (CPPFLAGS-nss_test1): Likewise.
	* stdlib/Makefile (CFLAGS-tst-putenvmod.c): Likewise.
	* sysdeps/gnu/Makefile ($(objpfx)errlist-compat.c): Likewise.
	* sysdeps/unix/sysv/linux/Makefile (CPPFLAGS-lddlibc4): Likewise.
	* iconvdata/Makefile (CPPFLAGS): Likewise.
	(cpp-srcs-left): Add libof for all iconvdata routines.
	* bits/stdio-lock.h: Replace NOT_IN_libc with IS_IN.
	* include/assert.h: Likewise.
	* include/ctype.h: Likewise.
	* include/errno.h: Likewise.
	* include/libc-symbols.h: Likewise.
	* include/math.h: Likewise.
	* include/netdb.h: Likewise.
	* include/resolv.h: Likewise.
	* include/stdio.h: Likewise.
	* include/stdlib.h: Likewise.
	* include/string.h: Likewise.
	* include/sys/stat.h: Likewise.
	* include/wctype.h: Likewise.
	* intl/l10nflist.c: Likewise.
	* libidn/idn-stub.c: Likewise.
	* libio/libioP.h: Likewise.
	* nptl/libc_multiple_threads.c: Likewise.
	* nptl/pthreadP.h: Likewise.
	* posix/regex_internal.h: Likewise.
	* resolv/res_hconf.c: Likewise.
	* sysdeps/arm/armv7/multiarch/memcpy.S: Likewise.
	* sysdeps/arm/memmove.S: Likewise.
	* sysdeps/arm/sysdep.h: Likewise.
	* sysdeps/generic/_itoa.h: Likewise.
	* sysdeps/generic/symbol-hacks.h: Likewise.
	* sysdeps/gnu/errlist.awk: Likewise.
	* sysdeps/gnu/errlist.c: Likewise.
	* sysdeps/i386/i586/memcpy.S: Likewise.
	* sysdeps/i386/i586/memset.S: Likewise.
	* sysdeps/i386/i686/memcpy.S: Likewise.
	* sysdeps/i386/i686/memmove.S: Likewise.
	* sysdeps/i386/i686/mempcpy.S: Likewise.
	* sysdeps/i386/i686/memset.S: Likewise.
	* sysdeps/i386/i686/multiarch/bcopy.S: Likewise.
	* sysdeps/i386/i686/multiarch/bzero.S: Likewise.
	* sysdeps/i386/i686/multiarch/memchr-sse2-bsf.S: Likewise.
	* sysdeps/i386/i686/multiarch/memchr-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/memchr.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcmp-sse4.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcmp-ssse3.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcmp.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcpy-ssse3.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcpy.S: Likewise.
	* sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise.
	* sysdeps/i386/i686/multiarch/memmove.S: Likewise.
	* sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise.
	* sysdeps/i386/i686/multiarch/mempcpy.S: Likewise.
	* sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise.
	* sysdeps/i386/i686/multiarch/memrchr-c.c: Likewise.
	* sysdeps/i386/i686/multiarch/memrchr-sse2-bsf.S: Likewise.
	* sysdeps/i386/i686/multiarch/memrchr-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/memrchr.S: Likewise.
	* sysdeps/i386/i686/multiarch/memset-sse2-rep.S: Likewise.
	* sysdeps/i386/i686/multiarch/memset-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/memset.S: Likewise.
	* sysdeps/i386/i686/multiarch/memset_chk.S: Likewise.
	* sysdeps/i386/i686/multiarch/rawmemchr.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcat-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcat-ssse3.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcat.S: Likewise.
	* sysdeps/i386/i686/multiarch/strchr-sse2-bsf.S: Likewise.
	* sysdeps/i386/i686/multiarch/strchr-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/strchr.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcmp-sse4.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcmp-ssse3.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcmp.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcpy-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcpy-ssse3.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcpy.S: Likewise.
	* sysdeps/i386/i686/multiarch/strcspn.S: Likewise.
	* sysdeps/i386/i686/multiarch/strlen-sse2-bsf.S: Likewise.
	* sysdeps/i386/i686/multiarch/strlen-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/strlen.S: Likewise.
	* sysdeps/i386/i686/multiarch/strnlen.S: Likewise.
	* sysdeps/i386/i686/multiarch/strrchr-sse2-bsf.S: Likewise.
	* sysdeps/i386/i686/multiarch/strrchr-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/strrchr.S: Likewise.
	* sysdeps/i386/i686/multiarch/strspn.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcschr-c.c: Likewise.
	* sysdeps/i386/i686/multiarch/wcschr-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcschr.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcscmp-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcscmp.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcscpy-c.c: Likewise.
	* sysdeps/i386/i686/multiarch/wcscpy-ssse3.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcscpy.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcslen-c.c: Likewise.
	* sysdeps/i386/i686/multiarch/wcslen-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcslen.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcsrchr-c.c: Likewise.
	* sysdeps/i386/i686/multiarch/wcsrchr-sse2.S: Likewise.
	* sysdeps/i386/i686/multiarch/wcsrchr.S: Likewise.
	* sysdeps/i386/i686/multiarch/wmemcmp-c.c: Likewise.
	* sysdeps/i386/i686/multiarch/wmemcmp.S: Likewise.
	* sysdeps/ia64/fpu/libm-symbols.h: Likewise.
	* sysdeps/nptl/bits/libc-lock.h: Likewise.
	* sysdeps/nptl/bits/libc-lockP.h: Likewise.
	* sysdeps/nptl/bits/stdio-lock.h: Likewise.
	* sysdeps/posix/closedir.c: Likewise.
	* sysdeps/posix/opendir.c: Likewise.
	* sysdeps/posix/readdir.c: Likewise.
	* sysdeps/posix/rewinddir.c: Likewise.
	* sysdeps/powerpc/novmx-sigjmp.c: Likewise.
	* sysdeps/powerpc/powerpc32/__longjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/bsd-_setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/__longjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/bzero.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memcmp-ppc32.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memcpy-ppc32.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memset-ppc32.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/memset.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp_l.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strlen-ppc32.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strncase.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strncase_l.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-ppc32.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-ppc32.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy.c: Likewise.
	* sysdeps/powerpc/powerpc32/power6/memset.S: Likewise.
	* sysdeps/powerpc/powerpc32/setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc64/__longjmp.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/bzero.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memcmp.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memcpy-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memcpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memmove.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/mempcpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memrchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memset.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/stpcpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/stpncpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcat.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strchrnul.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcmp-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcmp.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcspn.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strlen-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strlen.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncase.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncase_l.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncat.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncmp-ppc64.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncmp.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncpy-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strnlen.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strpbrk.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strrchr-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strrchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strspn-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strspn.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcschr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcscpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wordcopy.c: Likewise.
	* sysdeps/powerpc/powerpc64/setjmp.S: Likewise.
	* sysdeps/s390/s390-32/multiarch/ifunc-resolve.c: Likewise.
	* sysdeps/s390/s390-32/multiarch/memcmp.S: Likewise.
	* sysdeps/s390/s390-32/multiarch/memcpy.S: Likewise.
	* sysdeps/s390/s390-32/multiarch/memset.S: Likewise.
	* sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Likewise.
	* sysdeps/s390/s390-64/multiarch/memcmp.S: Likewise.
	* sysdeps/s390/s390-64/multiarch/memcpy.S: Likewise.
	* sysdeps/s390/s390-64/multiarch/memset.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara4.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memset-niagara1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memset-niagara4.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memset.S: Likewise.
	* sysdeps/unix/alpha/sysdep.S: Likewise.
	* sysdeps/unix/alpha/sysdep.h: Likewise.
	* sysdeps/unix/make-syscalls.sh: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/getpid.c: Likewise.
	* sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/lowlevellock-futex.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/not-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/longjmp_chk.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/waitpid.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
	* sysdeps/wordsize-32/symbol-hacks.h: Likewise.
	* sysdeps/x86_64/memcpy.S: Likewise.
	* sysdeps/x86_64/memmove.c: Likewise.
	* sysdeps/x86_64/memset.S: Likewise.
	* sysdeps/x86_64/multiarch/init-arch.h: Likewise.
	* sysdeps/x86_64/multiarch/memcmp-sse4.S: Likewise.
	* sysdeps/x86_64/multiarch/memcmp-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/memcmp.S: Likewise.
	* sysdeps/x86_64/multiarch/memcpy-avx-unaligned.S: Likewise.
	* sysdeps/x86_64/multiarch/memcpy-ssse3-back.S: Likewise.
	* sysdeps/x86_64/multiarch/memcpy-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/memcpy.S: Likewise.
	* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove.c: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/memset-avx2.S: Likewise.
	* sysdeps/x86_64/multiarch/memset.S: Likewise.
	* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/strcat-sse2-unaligned.S: Likewise.
	* sysdeps/x86_64/multiarch/strcat-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/strcat.S: Likewise.
	* sysdeps/x86_64/multiarch/strchr-sse2-no-bsf.S: Likewise.
	* sysdeps/x86_64/multiarch/strchr.S: Likewise.
	* sysdeps/x86_64/multiarch/strcmp-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/strcmp.S: Likewise.
	* sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S: Likewise.
	* sysdeps/x86_64/multiarch/strcpy-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/strcpy.S: Likewise.
	* sysdeps/x86_64/multiarch/strcspn.S: Likewise.
	* sysdeps/x86_64/multiarch/strspn.S: Likewise.
	* sysdeps/x86_64/multiarch/wcscpy-c.c: Likewise.
	* sysdeps/x86_64/multiarch/wcscpy-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/wcscpy.S: Likewise.
	* sysdeps/x86_64/multiarch/wmemcmp-c.c: Likewise.
	* sysdeps/x86_64/multiarch/wmemcmp.S: Likewise.
	* sysdeps/x86_64/strcmp.S: Likewise.
 2014-11-24 15:03:45 +05:30
Siddhesh Poyarekar
a38484851a Remove IS_IN_rtld 
Replace with IS_IN (rtld).  Generated code is unchanged on
x86_64.

        * elf/Makefile (CPPFLAGS-.os): Remove IS_IN_rtld.
        * elf/dl-open.c: Use IS_IN (rtld) instead if IS_IN_rtld.
        * elf/rtld-Rules: Likewise.
        * elf/setup-vdso.h: Likewise.
        * include/assert.h: Likewise.
        * include/bits/stdlib-float.h: Likewise.
        * include/errno.h: Likewise.
        * include/sys/stat.h: Likewise.
        * include/unistd.h: Likewise.
        * sysdeps/aarch64/setjmp.S: Likewise.
        * sysdeps/alpha/setjmp.S: Likewise.
        * sysdeps/arm/__longjmp.S: Likewise.
        * sysdeps/arm/aeabi_unwind_cpp_pr1.c: Likewise.
        * sysdeps/arm/setjmp.S: Likewise.
        * sysdeps/arm/sysdep.h: Likewise.
        * sysdeps/generic/_itoa.h: Likewise.
        * sysdeps/generic/dl-sysdep.h: Likewise.
        * sysdeps/generic/ldsodefs.h: Likewise.
        * sysdeps/i386/dl-tls.h: Likewise.
        * sysdeps/i386/setjmp.S: Likewise.
        * sysdeps/m68k/setjmp.c: Likewise.
        * sysdeps/mach/hurd/dl-execstack.c: Likewise.
        * sysdeps/mach/hurd/opendir.c: Likewise.
        * sysdeps/posix/getcwd.c: Likewise.
        * sysdeps/posix/opendir.c: Likewise.
        * sysdeps/posix/profil.c: Likewise.
        * sysdeps/powerpc/dl-procinfo.h: Likewise.
        * sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S: Likewise.
        * sysdeps/powerpc/powerpc32/fpu/setjmp-common.S: Likewise.
        * sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h: Likewise.
        * sysdeps/powerpc/powerpc32/setjmp-common.S: Likewise.
        * sysdeps/powerpc/powerpc64/__longjmp-common.S: Likewise.
        * sysdeps/powerpc/powerpc64/setjmp-common.S: Likewise.
        * sysdeps/s390/dl-tls.h: Likewise.
        * sysdeps/s390/s390-32/setjmp.S: Likewise.
        * sysdeps/s390/s390-64/setjmp.S: Likewise.
        * sysdeps/sh/sh3/setjmp.S: Likewise.
        * sysdeps/sh/sh4/setjmp.S: Likewise.
        * sysdeps/unix/alpha/sysdep.h: Likewise.
        * sysdeps/unix/arm/sysdep.S: Likewise.
        * sysdeps/unix/i386/sysdep.S: Likewise.
        * sysdeps/unix/sysv/linux/aarch64/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/getcwd.c: Likewise.
        * sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/ia64/setjmp.S: Likewise.
        * sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/lowlevellock-futex.h: Likewise.
        * sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h: Likewise.
        * sysdeps/unix/sysv/linux/m68k/m68k-helpers.S: Likewise.
        * sysdeps/unix/sysv/linux/microblaze/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/tile/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/tile/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
        * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
        * sysdeps/unix/x86_64/sysdep.S: Likewise.
        * sysdeps/x86_64/setjmp.S: Likewise.
 2014-11-24 11:41:48 +05:30
Siddhesh Poyarekar
ce9f10f7f0 Remove IS_IN_libpthread 
Replace with IS_IN (libpthread).  Generated code unchanged on
x86_64.

	* nptl/lowlevellock.c: Use IS_IN instead of IS_IN_libpthread.
	* nptl/pthreadP.h: Likewise.
	* nptl_db/structs.def: Likewise.
	* sysdeps/arm/sysdep.h: Likewise.
	* sysdeps/nptl/bits/libc-lock.h: Likewise.
	* sysdeps/nptl/bits/libc-lockP.h: Likewise.
	* sysdeps/sparc/sparc32/lowlevellock.c: Likewise.
	* sysdeps/unix/alpha/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/not-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/waitpid.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/cancellation.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
 2014-11-24 11:41:46 +05:30
Siddhesh Poyarekar
016afc75cd Remove IS_IN_librt 
Replace with IS_IN (librt).  Generated code unchanged on x86_64

        * include/mqueue.h: Use IS_IN instead of IS_IN_librt.
        * nptl/pthreadP.h: Likewise.
        * sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/not-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
        * sysdeps/unix/sysv/linux/tile/waitpid.S: Likewise.
        * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
 2014-11-24 11:41:45 +05:30
Joseph Myers
1810d3ab71 Remove shlib-versions entries redundant with DEFAULT entries. 
When a shlib-versions file has a DEFAULT line, it's not necessary to
specify the same default minimum symbol version on the lines for
individual libraries.  If those lines otherwise duplicate the default
SONAME for the library in question, they can be removed completely.

This patch makes such cleanups: version entries for ld.so are removed
(leaving just the definition of the architecture-specific dynamic
linker name) and entries for libpthread are removed completely (since
the default is libpthread.so.0).

Tested for x86_64 that the installed shared libraries are unchanged by
this patch.

There are various architectures (hppa, ia64, mips, sh, sparc64) that
define minimum symbol versions (or in the case of mips, omission of
symbol versions) only for particular libraries without a DEFAULT line.
None of these are equivalent to something simpler with a DEFAULT line
because all have some other libraries, not explicitly mentioned, with
symbol versions that would be omitted were such a line used.  In the
mips case I'm pretty sure it was a mistake not to omit the 2.1 symbols
for libthread_db; for the others I don't know if it was a mistake or
deliberate that some symbols in various libraries have 2.0 or 2.1
versions despite other libraries having a 2.2 minimum.

This concludes the shlib-versions cleanups I'm aware of.

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: Do not
	specify symbol version for ld.so.  Do not include entry for
	libpthread.
	* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
 2014-09-26 17:34:22 +00:00
Joseph Myers
93ae1ebaa6 Clean up gnu/lib-names.h generation (bug 14171). 
This patch eliminates the mixture of SONAME information in
shlib-versions files and SONAME information used to generate
gnu/lib-names.h in makefiles, with the information in the makefiles
being removed so all this information comes from the shlib-versions
files.

So that gnu/lib-names.h supports multiple ABIs, it is changed to be
generated on the same basis as gnu/stubs.h: when there are multiple
ABIs, gnu/lib-names.h is a wrapper header (the same header installed
whatever ABI is being built) and separate headers such as
gnu/lib-names-64.h contain the substantive contents (only one such
header being installed by any glibc build).

The rules for building gnu/lib-names.h were moved from Makeconfig to
Makerules because they need to come after sysdeps makefiles are
included (now that "ifndef abi-variants" is a toplevel conditional on
the rules rather than $(abi-variants) being evaluated later inside the
commands for a rule).

Tested for x86_64 and x86 that the installed shared libraries are
unchanged by this patch, and examined the installed gnu/lib-names*.h
headers by hand.  Also tested the case of a single ABI (where there is
just a single header installed, again like stubs.h) by hacking
abi-variants to empty for x86_64.

	[BZ #14171]
	* Makeconfig [$(build-shared) = yes]
	($(common-objpfx)soversions.mk): Don't handle SONAMEs specified in
	makefiles.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)gnu/lib-names.h): Remove rule.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)gnu/lib-names.stmp): Likewise.  Split and moved
	to Makerules.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(before-compile): Don't append $(common-objpfx)gnu/lib-names.h
	here.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(common-generated): Don't append gnu/lib-names.h and
	gnu/lib-names.stmp here.
	* Makerules [$(build-shared) = yes && $(soversions.mk-done) = t]
	(lib-names-h-abi): New variable.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(lib-names-stmp-abi): Likewise.
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] (before-compile): Append
	$(common-objpfx)$(lib-names-h-abi).
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] (common-generated): Append gnu/lib-names.h.
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] (install-others-nosubdir): Depend on
	$(inst_includedir)/$(lib-names-h-abi).
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] ($(common-objpfx)gnu/lib-names.h): New rule.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)$(lib-names-h-abi)): New rule.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)$(lib-names-stmp-abi)): Likewise.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(common-generated): Append $(lib-names-h-abi) and
	$(lib-names-stmp-abi).
	* scripts/lib-names.awk: Do not handle multi being set.
	* sysdeps/unix/sysv/linux/aarch64/Makefile (abi-lp64-ld-soname):
	Remove variable.
	(abi-lp64_be-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/arm/Makefile (abi-soft-ld-soname):
	Likewise.
	(abi-hard-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/i386/shlib-versions: New file.
	* sysdeps/unix/sysv/linux/mips/Makefile (abi-o32_soft-ld-soname):
	Remove variable.
	(abi-o32_hard-ld-soname): Likewise.
	(abi-o32_soft_2008-ld-soname): Likewise.
	(abi-o32_hard_2008-ld-soname): Likewise.
	(abi-n32_soft-ld-soname): Likewise.
	(abi-n32_hard-ld-soname): Likewise.
	(abi-n32_soft_2008-ld-soname): Likewise.
	(abi-n32_hard_2008-ld-soname): Likewise.
	(abi-n64_soft-ld-soname): Likewise.
	(abi-n64_hard-ld-soname): Likewise.
	(abi-n64_soft_2008-ld-soname): Likewise.
	(abi-n64_hard_2008-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/Makefile (abi-64-v1-ld-soname):
	Likewise.
	(abi-64-v2-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: Add
	ld.so entries.
	* sysdeps/unix/sysv/linux/s390/Makefile (abi-64-ld-soname): Remove
	variable.
	* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Add ld.so
	entry.
	* sysdeps/unix/sysv/linux/x86/Makefile (abi-32-ld-soname): Remove
	variable.
	(abi-64-ld-soname): Likewise.
	(abi-x32-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Add ld.so
	entry.
	* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
 2014-09-26 17:33:04 +00:00
Joseph Myers
ba90e05052 Remove configuration name patterns from shlib-versions. 
This patch removes the first column (patterns matching configuration
names) from shlib-versions, leaving shlib-versions entry selection
based purely on sysdeps directories.

An implication of this removal is that the default for any non-Linux
ports using NPTL will be the same SONAMEs for NPTL libraries as for
Linux (as those defaults, previously limited to .*-.*-linux.*, are
left in nptl/shlib-versions and nptl_db/shlib-versions).

Special host_os handling in configure.ac that was purely for
shlib-versions is removed.  (The host_os setting is still used for
libc-abis - see
<https://sourceware.org/ml/libc-alpha/2014-01/msg00375.html> regarding
that - but no entries there are affected by this change.)

Tested on x86_64 and x86 that the installed shared libraries are
unchanged by this patch.

	* scripts/soversions.awk: Do not handle configuration names.
	* Makeconfig ($(common-objpfx)soversions.i): Do not pass cpu,
	vendor and os variables to soversions.awk.
	* configure.ac: Do not modify gnu-* host_os.
	* configure: Regenerated
	* shlib-versions: Remove first column with configuration names.
	* nptl/shlib-versions: Likewise.
	* nptl_db/shlib-versions: Likewise.
	* sysdeps/hppa/shlib-versions: Likewise.
	* sysdeps/m68k/shlib-versions: Likewise.
	* sysdeps/mach/hurd/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/alpha/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/arm/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/hppa/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/ia64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/mips/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sh/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/tile/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.

libidn/ChangeLog:
	* shlib-versions: Remove first column with configuration names.
 2014-09-12 12:28:47 +00:00
Joseph Myers
dc932a24d9 Move architecture-specific shlib-versions entries to sysdeps files. 
This patch eliminates another way in which ex-ports and non-ex-ports
architectures differ, by moving architecture-specific entries from the
top-level shlib-versions file and that in nptl/ to appropriate sysdeps
directories.  As with my previous patch
<https://sourceware.org/ml/libc-alpha/2014-06/msg00949.html>, I do not
change the regular expressions used; even where the present
expressions seem more general, I believe they are in fact specific to
the chosen sysdeps directory, because any port that matches the
expression but not the sysdeps directory does not currently exist, and
so would use different symbol versions if added in future (and an
intended goal of these changes is to eliminate the first column in
shlib-versions completely rather than having two different mechanisms
in use for system-specific configuration).

Tested on x86_64 that this does not change the installed shared
libraries.  (x86_64 of course does not provide much test coverage for
this patch - what should be architecture-specific contents in
shlib-versions for x86_64 is currently abi-*-ld-soname Makefile
settings, until gnu/lib-names.h is generated more like gnu/stubs.h so
those can move back to shlib-versions.)

	* nptl/shlib-versions: Remove architecture-specific entries.
	Moved to files in sysdeps.
	* shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sh/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/shlib-versions: Likewise.
 2014-09-12 12:22:27 +00:00
Siddhesh Poyarekar
eb72478a28 Remove unnecessary uses of NOT_IN_libc 
If a IS_IN_* macro is defined, then NOT_IN_libc is always defined,
except obviously for IS_IN_libc.  There's no need to check for both.
Verified on x86_64 and i686 that the source is unchanged.

       * include/libc-symbols.h: Remove unnecessary check for
       NOT_IN_libc.
       * nptl/pthreadP.h: Likewise.
       * sysdeps/aarch64/setjmp.S: Likewise.
       * sysdeps/alpha/setjmp.S: Likewise.
       * sysdeps/arm/sysdep.h: Likewise.
       * sysdeps/i386/setjmp.S: Likewise.
       * sysdeps/m68k/setjmp.c: Likewise.
       * sysdeps/posix/getcwd.c: Likewise.
       * sysdeps/powerpc/powerpc32/setjmp-common.S: Likewise.
       * sysdeps/powerpc/powerpc64/setjmp-common.S: Likewise.
       * sysdeps/s390/s390-32/setjmp.S: Likewise.
       * sysdeps/s390/s390-64/setjmp.S: Likewise.
       * sysdeps/sh/sh3/setjmp.S: Likewise.
       * sysdeps/sh/sh4/setjmp.S: Likewise.
       * sysdeps/unix/alpha/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/aarch64/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/ia64/setjmp.S: Likewise.
       * sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/tile/sysdep.h: Likewise.
       * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
       * sysdeps/x86_64/setjmp.S: Likewise.
 2014-08-21 10:26:46 +05:30
Stefan Liebler
2f438e20ab S/390: Revert the jmp_buf/ucontext_t ABI change. 2014-07-31 20:04:54 +02:00
Joseph Myers
d95ffd4cfd Refactor handling of /lib64 etc. cases, move out of sysdeps/gnu/configure.ac. 
This patch continues removing architecture-specific cases from
non-architecture-specific files by moving the logic to use directories
such as /lib64 out of sysdeps/gnu/configure.ac.

A new macro LIBC_SLIBDIR_RTLDDIR is created that sysdeps configure
scripts can use to declare the library directories to be used; the
logic was previously duplicated in configure fragments for aarch64,
mips and x32 as well as in sysdeps/gnu/configure.ac.  This macro is
used directly in sysdeps/gnu/configure.ac only to provide the /lib
default (the logic saying that with --prefix=/usr shared libraries go
in /lib not /usr/lib); the architecture cases formerly there are moved
into various new or existing configure.ac files.  The new macro is
also used in the various architecture fragments that already had such
logic.  In the x32 there was previously a configure fragment, but it
was a directly written one without a .ac file; now a .ac file is used
there instead to generate configure.

Tested x86_64 that the installed shared libraries, and the directory
structure of the installation, are unchanged by this patch.

There is an old bug report - bug 6441 - about library directories
changing after reconfiguring.  If this is still applicable - and I
haven't attempted to confirm it or review the old patch pointed to in
that bug - then this patch should reduce the number of places needing
changing in any fix.

	* aclocal.m4 (LIBC_SLIBDIR_RTLDDIR): New macro.
	* sysdeps/gnu/configure.ac: Use LIBC_SLIBDIR_RTLDDIR.  Remove
	cases for individual architectures.
	* sysdeps/gnu/configure: Regenerated.
	* sysdeps/unix/sysv/linux/aarch64/configure.ac: Use
	LIBC_SLIBDIR_RTLDDIR.
	* sysdeps/unix/sysv/linux/aarch64/configure: Regenerated.
	* sysdeps/unix/sysv/linux/mips/configure.ac: Use
	LIBC_SLIBDIR_RTLDDIR.
	* sysdeps/unix/sysv/linux/mips/configure: Regenerated.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac: Use
	LIBC_SLIBDIR_RTLDDIR.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/configure:
	Regenerated.
	* sysdeps/unix/sysv/linux/s390/s390-64/configure.ac: New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/configure: New generated
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/configure.ac: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/configure: New generated
	file.
	* sysdeps/unix/sysv/linux/x86_64/64/configure.ac: New file.
	* sysdeps/unix/sysv/linux/x86_64/64/configure: New generated file.
	* sysdeps/unix/sysv/linux/x86_64/x32/configure.ac: New file.
	* sysdeps/unix/sysv/linux/x86_64/x32/configure: Generate.
 2014-07-17 14:35:48 +00:00
Roland McGrath
08192659bb Get rid of nptl/sysdeps/ entirely! 2014-07-07 09:28:38 -07:00
Roland McGrath
d8a483f3ef S390: Consolidate nptl/ subdirectories under linux/... 2014-06-26 09:34:34 -07:00
Roland McGrath
52ae23b4bf Move remaining S390 code out of nptl/. 2014-06-26 09:31:11 -07:00
Roland McGrath
39507e4a6c S390: Consolidate NPTL/non versions of vfork 2014-06-26 09:30:52 -07:00
Roland McGrath
e549ee5658 S390: Consolidate NPTL/non versions of clone 2014-06-26 09:30:33 -07:00
Ondřej Bílka
a1ffb40e32 Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
Andreas Krebbel
0f0c35e46e S/390: Merge 32 and 64 bit ucontext.h. 2014-01-22 18:44:35 +01:00
Andreas Krebbel
05d138ef07 S/390: Make ucontext_t extendible. 2014-01-07 09:42:23 +01:00
Andreas Krebbel
93a45ff1ca S/390: Make jmp_buf extendible. 2014-01-07 09:36:31 +01:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Siddhesh Poyarekar
61dd6208fb New API to set default thread attributes 
This patch introduces two new convenience functions to set the default
thread attributes used for creating threads.  This allows a programmer
to set the default thread attributes just once in a process and then
run pthread_create without additional attributes.
 2013-06-15 12:24:15 +05:30
Joseph Myers
9c84384cc1 Remove trailing whitespace. 2013-06-05 20:44:03 +00:00
Thomas Schwinge
572676160d New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 
It is based on draft TS 18661 and currently enabled as a GNU extension.
 2013-04-02 13:51:02 +02:00
Andreas Krebbel
c3e94a9533 S/390: Fix rt_sigprocmask syscall invocation in get/set/swapcontext. 2013-03-05 08:15:33 +01:00
Siddhesh Poyarekar
ba384f6ed9 C++11 thread_local destructors support 
This feature is specifically for the C++ compiler to offload calling
thread_local object destructors on thread program exit, to glibc.
This is to overcome the possible complication of destructors of
thread_local objects getting called after the DSO in which they're
defined is unloaded by the dynamic linker.  The DSO is marked as
'unloadable' if it has a constructed thread_local object and marked as
'unloadable' again when all the constructed thread_local objects
defined in it are destroyed.
 2013-02-18 19:08:21 +05:30
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Roland McGrath
6e6249d0b4 BZ#14743: Move clock_* symbols from librt to libc. 2012-10-24 14:50:46 -07:00
Florian Weimer
84b3fd8407 Rename __secure_getenv to secure_getenv 2012-07-25 19:46:22 +02:00
Joseph Myers
0f48659e36 Move localplt baselines to sysdeps directories. 2012-07-20 19:20:34 +00:00
Andreas Krebbel
46f85fc226 S/390: Fix uc_link == NULL handling for makecontext 2012-07-19 15:58:17 +02:00
Joseph Myers
bd29910a8a Move c++-types baselines to sysdeps directories. 2012-07-17 14:44:06 +00:00
Joseph Myers
ea32bcdd3d Add default-abi definitions for powerpc, s390 and sparc. 2012-06-01 21:19:28 +00:00
Andreas Schwab
03277f8fe1 Remove use of INTDEF/INTUSE in socket 2012-05-31 00:34:41 +02:00
Andreas Krebbel
11ef492c80 S/390: ABI baseline update. 2012-05-29 11:04:22 +00:00
Richard Henderson
c7683a6d02 Add <sys/auxv.h> and getauxval. 2012-05-20 10:40:35 -07:00
David S. Miller
8dbd5d7b90 Move abilist files into sysdep dirs. 
* Makerules (%.abilist): Add vpath on sysdep_dirs.
	(check-abi-%): Remove AWK script prerequisite and explicit
	abilist directory.
	(check-abi): Rewrite to just diff the symlist with the abilist.
	(config-tls, config-abi-config): Delete, no longer used.
	(update-abi-%): Remove AWK script and explicit abilist directory.
	(update-abi): Rewrite to simply compare and conditionally copy the
	symlist and the sysdep abilist file.  Remove update-abi-config
	checks.
	* abilist/ld.abilist: Remove.
	* abilist/libBrokenLocale.abilist: Remove.
	* abilist/libanl.abilist: Remove.
	* abilist/libcrypt.abilist: Remove.
	* abilist/libdl.abilist: Remove.
	* abilist/librt.abilist: Remove.
	* abilist/libthread_db.abilist: Remove.
	* abilist/libutil.abilist: Remove.
	* scripts/extract-abilist.awk: Remove.
	* scripts/merge-abilist.awk: Remove.
	* sysdeps/generic/libcidn.abilist: New file.
	* sysdeps/generic/libnss_compat.abilist: New file.
	* sysdeps/generic/libnss_db.abilist: New file.
	* sysdeps/generic/libnss_dns.abilist: New file.
	* sysdeps/generic/libnss_files.abilist: New file.
	* sysdeps/generic/libnss_hesiod.abilist: New file.
	* sysdeps/generic/libnss_nis.abilist: New file.
	* sysdeps/generic/libnss_nisplus.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libanl.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libBrokenLocale.abilist: New
	file.
	* sysdeps/unix/sysv/linux/i386/nptl/libc.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libcrypt.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libdl.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libm.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libnsl.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libresolv.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/librt.abilist: New file.
	* sysdeps/unix/sysv/linux/i386/nptl/libthread_db.abilist: New
	file.
	* sysdeps/unix/sysv/linux/i386/nptl/libutil.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libanl.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libBrokenLocale.abilist: New
	file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libc.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libcrypt.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libdl.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libm.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libnsl.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libpthread.abilist: New
	file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libresolv.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/librt.abilist: New file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libthread_db.abilist: New
	file.
	* sysdeps/unix/sysv/linux/x86_64/nptl/libutil.abilist: New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/ld.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libanl.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libBrokenLocale.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libc.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libcrypt.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libdl.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libm.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libnsl.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libpthread.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libresolv.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/librt.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libthread_db.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powercp32/fpu/nptl/libutil.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/ld.abilist: New
	file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libanl.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libBrokenLocale.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libc.abilist: New
	file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libcrypt.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libdl.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libm.abilist: New
	file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libnsl.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libpthread.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libresolv.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/librt.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libthread_db.abilist:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libutil.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libanl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libBrokenLocale.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libc.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libcrypt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libdl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libm.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libnsl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libpthread.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libresolv.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/librt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libthread_db.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/nptl/libutil.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libanl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libBrokenLocale.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libc.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libcrypt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libdl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libm.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libnsl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libpthread.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libresolv.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/librt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libthread_db.abilist:
	New file.
	* sysdeps/unix/sysv/linux/s390/s390-64/nptl/libutil.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sh/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libanl.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libBrokenLocale.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sh/nptl/libc.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libcrypt.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libdl.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libm.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libnsl.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libpthread.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libresolv.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/librt.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libthread_db.abilist: New file.
	* sysdeps/unix/sysv/linux/sh/nptl/libutil.abilist: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libanl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libBrokenLocale.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libc.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libcrypt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libdl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libm.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libnsl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libpthread.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libresolv.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/librt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libthread_db.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libutil.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/ld.abilist: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libanl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libBrokenLocale.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libcrypt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libdl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libm.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libnsl.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libpthread.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libresolv.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/librt.abilist: New
	file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libthread_db.abilist:
	New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libutil.abilist: New
	file.
 2012-04-28 04:36:51 -04:00
H.J. Lu
eb96ffb07d Move stdio-common/_itoa.h to sysdeps/generic 2012-03-20 16:00:23 -07:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
d063d16433 Remove support for !USE___THREAD 2011-09-10 16:50:28 -04:00
Andreas Krebbel
19df733e64 S/390: Don't use r11 in INTERNAL_VSYSCALL_NCS macro 2011-07-19 20:29:27 -04:00
Andreas Schwab
0dabf204ef Fix makecontext on s390/s390x 2010-04-13 10:23:22 -07:00
Andreas Schwab
e3b7670be2 Fix ____longjmp_chk for s390/s390x. 2010-01-20 07:59:30 -08:00