Commit Graph

232 Commits

Author SHA1 Message Date
Adhemerval Zanella
8781c1301d misc: Set generic pselect as ENOSYS
The generic pselect implementation has the very specific race condition
that motived the creation of the pselect syscall (no atomicity in
signal mask set/reset).  Using it as generic implementation is
counterproductive  Also currently only microblaze uses it as fallback
when used on kernel prior 3.15.

This patch moves the generic implementation to a microblaze specific
one, sets the generic internal as a ENOSYS, and cleanups the Linux
generic implementation.

The microblaze implementation mimics the previous Linux generic one,
where it either uses pselect6 directly if __ASSUME_PSELECT or a
first try pselect6 then the fallback otherwise.

Checked on x86_64-linux-gnu and microblaze-linux-gnu.
2019-11-22 14:40:57 -03:00
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
Adhemerval Zanella
06436acf81 ipc: Refactor sysvipc internal definitions
This patch refactor the internal sysvipc in two main points:

  1. Add a new __ASSUME_SYSVIPC_DEFAULT_IPC_64 to infer the __IPC_64
     value to be used along either the multiplexed __NR_ipc or wired-up
     syscall.  The defaut value assumed for __IPC_64 is also changed
     from 0x100 to 0x0, aligning with Linux generic UAPI.  The idea
     is to simplify the Linux 5.1 wire-up for sysvipc syscalls for
     some 32-bit ABIs (which expectes __IPC_64 being 0x0) and simplify
     new ports (which will no longer need to add ipc_priv.h).

  2. It also removes some duplicated internal definition used on compat
     sysvipc symbols defined at ipc_priv.h (more specifically the
     __old_ipc_perm, SEMCTL_ARG_ADDRESS, MSGRCV_ARGS, and
     SEMTIMEDOP_IPC_ARGS).  The idea is also to make it simpler to enable
     the new wire-up sysvipc syscall provided by Linux v5.1.

There is no semantic change expected on any port.  Checked with a build
against all affected ABIs.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
2019-10-17 11:04:59 -03:00
Adhemerval Zanella
2f959dfe84 sysvipc: Set ipc_perm mode as mode_t (BZ#18231)
This patch sets the mode field in ipc_perm as mode_t for all architectures,
as POSIX specification [1].  The changes required are as follow:

  1. It moves the ipc_perm definition out of ipc.h to its own header
     ipc_perm.h.  It also allows consolidate the IPC_* definition on
     only one header.

  2. The generic implementation follow the kernel ipc64_perm size so the
     syscall can be made directly without temporary buffer copy.  However,
     since glibc defines the MODE field as mode_t, it omits the __PAD1 field
     (since glibc does not export mode_t as 16-bit for any architecture).

     It is a two-fold improvement:

     2.1. New implementation which follow Linux UAPI will not need to
	  provide an arch-specific ipc-perm.h header neither wrongly
          use the wrong 16-bit definition from previous default ipc.h
	  (as csky did).

     2.1. It allows consolidate ipc_perm definition for architectures that
          already provide mode_t as 32-bit.

  3. All kernel ABIs for the supported architectures already provides the
     expected padding for mode type extension to 32-bit.  However, some
     architectures the padding has the wrong placement, so it requires
     the ipc control routines (msgctl, semctl, and shmctl) to adjust the
     mode field accordingly.  Currently they are armeb, microblaze, m68k,
     s390, and sheb.

     A new assume is added, __ASSUME_SYSVIPC_BROKEN_MODE_T, which the
     required ABIs define.

  4. For the ABIs that define __ASSUME_SYSVIPC_BROKEN_MODE_T, it also
     require compat symbols that do not adjust the mode field.

Checked on arm-linux-gnueabihf, aarch64-linux-gnu, powerpc64le-linux-gnu,
and x86_64-linux-gnu. I also checked the sysvipc tests on hppa-linux-gnu,
sh4-linux-gnu, s390x-linux-gnu, and s390-linux-gnu.

I also did a sanity test against armeb qemu usermode for the sysvipc
tests.

	[BZ #18231]
	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
	bits/ipc-perm.h.
	* sysdeps/unix/sysv/linux/aarch64/bits/ipc.h: Remove file.
	* sysdeps/unix/sysv/linux/alpha/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	[__BYTE_ORDER == __BIG_ENDIAN] (__ASSUME_SYSVIPC_BROKEN_MODE_T):
	Define.
	* sysdeps/sysv/linux/microblaze/kernel-features.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	[!__s390x__] (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_SYSVIPC_BROKEN_MODE_T): Define.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/ipc-perm.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/bits/ipc-perm.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/ipc-perm.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/ipc.h (ipc_perm): Move to
	bits/ipc-perm.h.
	* sysdeps/unix/sysv/linux/hppa/bits/ipc-perm.h: New file.
	* sysdeps/unix/sysv/linux/kernel-features.h: Add comment about
	__ASSUME_SYSVIPC_BROKEN_MODE_T semantic.
	* sysdeps/unix/sysv/linux/msgctl.c (DEFAULT_VERSION): Define as
	2.31 if __ASSUME_SYSVIPC_BROKEN_MODE_T is defined.
	(msgctl_syscall, __msgctl_mode16): New symbol.
	(__new_msgctl): Add bits for __ASSUME_SYSVIPC_BROKEN_MODE_T.
	* sysdeps/unix/sysv/linux/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/be/libc.abilist (GLIBC_2.31): Add
	msgctl, semctl, and shmctl.
	* sysdeps/sysv/linux/microblaze/be/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/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/be/libc.abilist: Likewise.
	* conform/data/sys/ipc.h-data: Only xfail {struct ipc_perm} mode_t
	mode for Hurd.
	* sysdeps/unix/sysv/linux/m68k/Versions (libc) [GLIBC_2.31]: Add
	msgctl, semctl, and shmctl.
	* sysdeps/unix/sysv/linux/arm/be/Versions: New file.
	* sysdeps/unix/sysv/linux/microblaze/be/Versions: Likewise.
	* sysdeps/unix/sysv/linux/sh/be/Versions: Likewise.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_ipc.h.html
2019-10-10 17:33:27 -03:00
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
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
Adhemerval Zanella
c7fca8d404 microblaze: Split BE/LE abilist
The fix for BZ#18231 requires new symbols only for microblaze.  This patch
adds the required folder and files for both BE and LE abilist.  No semantic
changes are expected.

Checked with check-abi for microblaze-linux-gnueabihf and
microblazeel-linux-gnueabihf.

	* sysdeps/microblaze/preconfigure.ac: New file.
	* sysdeps/microblaze/preconfigure: Regenerate.
	* sysdeps/microblaze/be/implies: New file.
	* sysdeps/microblaze/le/implies: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/be/implies: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/le/implies: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/*.abilist. Move to
	sysdeps/unix/sysv/linux/microblaze/be/*.abilist.
	* sysdeps/unix/sysv/linux/microblaze/le/*.abilist: New files.
2019-08-29 09:58:27 -03:00
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
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
5a659ccc0e io: Remove copy_file_range emulation [BZ #24744]
The kernel is evolving this interface (e.g., removal of the
restriction on cross-device copies), and keeping up with that
is difficult.  Applications which need the function should
run kernels which support the system call instead of relying on
the imperfect glibc emulation.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2019-06-28 09:39:21 +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
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
Joseph Myers
e5de3b5b72 Remove __ASSUME_SOCKETCALL.
The __ASSUME_SOCKETCALL macro in kernel-features.h is no longer used
for anything.  (It used to be used in defining other macros related to
accept4 / recvmmsg / sendmmsg availability, but the code in that area
was simplified once we could assume a kernel with those features,
whether through a syscall or through socketcall, so allowing those
functions to be handled much like other socket operations, without
requring __ASSUME_SOCKETCALL.)  This patch removes that unused macro.

(Note: once we can assume a Linux 4.4 or later kernel, much of the
support for using socketcall at all can be removed from glibc,
although a few functions may need that support in glibc for longer.)

Tested with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/kernel-features.h: Remove comment about
	__ASSUME_SOCKETCALL.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_SOCKETCALL): Remove.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_SOCKETCALL): Likewise.
2018-11-08 20:28:07 +00:00
Joseph Myers
596cc360aa Fix __ASSUME_MLOCK2 for ARM, MicroBlaze (bug 23867).
The generic kernel-features.h defines __ASSUME_MLOCK2 for 4.4 and
later kernels.  However, for 32-bit ARM binaries running on 64-bit ARM
kernels, and for MicroBlaze, the syscall was only wired up in the 4.7
kernel.  (32-bit ARM kernels did have the syscall from 4.4 onwards.)
This patch duly arranges for the macro to be undefined for those
architectures for kernels before 4.7.

Tested with build-many-glibcs.py for its ARM and MicroBlaze
configurations.

	[BZ #23867]
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	[__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_MLOCK2): Undefine.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	[__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_MLOCK2): Undefine.
2018-11-07 16:27:35 +00:00
Florian Weimer
4a938cb273 posix: New function posix_spawn_file_actions_addchdir_np [BZ #17405] 2018-11-06 16:08:12 +01:00
Joseph Myers
8ea4d2b7d1 Unify some sys/procfs.h headers.
As per recent discussions, this patch unifies some of the sys/procfs.h
headers for architectures using the Linux kernel, producing a generic
version that can hopefully be used by all new architectures as well.

The new generic version is based on the AArch64 one.  The register
definitions, the only part that generally needs to vary by
architecture, go in a new bits/procfs.h header (which each
architecture using the generic version needs to provide); that header
also has any #includes that were in the architecture-specific
sys/procfs.h, where those includes went beyond the generic set.

The generic version is used for eight architectures where the generic
definitions were the same as the architecture-specific ones.  (Some of
those architectures had #if 0 fields, now removed; some defined types
or fields using different type names which were typedefs for the same
underlying types.)

Six of the remaining architectures with their own sys/procfs.h use
unsigned short for pr_uid / pr_gid in some cases; moving those to the
generic header will require a bits/ header to define a typedef for the
type of those fields.  In the case of alpha, the generic sys/procfs.h
uses elf_gregset_t (= unsigned long int[33]) to define prgregset_t and
elf_fpregset_t (= double[32]) to define prfpregset_t, but the alpha
version uses gregset_t (= long int[33]) and fpregset_t (= long
int[32]), so avoiding unnecessarily changing the underlying types (and
thus C++ name mangling) again means a bits/ header will need to be
able to define a different choice for those typedefs.

bits/procfs.h is included outside the __BEGIN_DECLS / __END_DECLS pair
(whereas the definitions it contains were previously inside that pair
in various sys/procfs.h headers), because it sometimes includes other
headers and putting those other #includes inside that pair seems
risky.  Because none of the declarations in bits/procfs.h are of
functions or variables or involve function types, I don't think it
makes any difference whether they are inside or outside an extern "C"
context.

Tested with build-many-glibcs.py (again, that does not provide much
validation for the correctness of this patch).

	* sysdeps/unix/sysv/linux/sys/procfs.h: Replace with file based on
	AArch64 version.  Include <bits/procfs.h>.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
	(sysdep_headers): Add bits/procfs.h.
	* sysdeps/unix/sysv/linux/bits/procfs.h: New file.
	* sysdeps/unix/sysv/linux/aarch64/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove file.
	* sysdeps/unix/sysv/linux/hppa/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/sys/procfs.h: Likewise.
2018-09-25 16:48:15 +00:00
Joseph Myers
d3a43e49f3 Unify many bits/mman.h headers.
Many bits/mman.h headers for Linux architectures have exactly the same
contents, up to whitespace, comments and the number of leading 0s on
constants.  Specifically, this applies to architectures that, in the
Linux kernel, either have no uapi/asm/mman.h, or have one that
includes asm-generic/mman.h without any changes or additions relevant
to glibc (this last case is the one that applies to Arm).

It's not useful to have to duplicate the set of MAP_* constants in
glibc for all such architectures and any new architectures with that
property.  Thus, this patch creates a generic
sysdeps/unix/sysv/linux/bits/mman.h and removes all the
architecture-specific versions that become unnecessary.

Further unification remains possible after this patch.  For example,
the new bits/mman.h could become bits/mman-map-flags-generic.h so that
it could also be used by architecture-specific bits/mman.h headers on
architectures that use the generic flags but add architecture-specific
ones to them.  That would allow this common set of MAP_* definitions
to be used on ia64 and x86 as well (architectures that include
asm-generic/mman.h from their own uapi/asm/mman.h but define
additional MAP_* values of their own).

Tested with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/bits/mman.h: New file.
	* sysdeps/unix/sysv/linux/aarch64/bits/mman.h: Remove.
	* sysdeps/unix/sysv/linux/arm/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h: Likewise.
2018-09-18 16:12:56 +00:00
Joseph Myers
d59f3e5e0f Fix sys/procfs.h pr_uid, pr_gid type (bug 23649).
As noted in
<https://sourceware.org/ml/libc-alpha/2018-09/msg00178.html>, glibc's
sys/procfs.h headers for microblaze, mips (n64), nios2 and riscv have
incorrect types for the pr_uid and pr_gid members of struct
elf_prpsinfo (as does the generic Linux version, but nothing uses
that).

This patch fixes those headers to use unsigned int.  The generic Linux
version is also fixed, but I do *not* recommend making new
architectures use it yet.  Rather, I think it should be reworked to
look more like a copy of the AArch64 version, but with a new
<bits/procfs.h> header included to provide register set definitions;
<bits/procfs.h> would then be architecture-specific while many
architectures could use the generic <sys/procfs.h>.  This fix is
deliberately separate from any reworking to use a generic header more,
since it's possible there could be uses for backporting this fix but
not for backporting a subsequent cleanup.

Tested with build-many-glibcs.py.  This of course doesn't provide much
validation of the structure layout; if the Linux kernel is fixed so
that "#include <linux/elfcore.h>" actually compiles with the headers
from "make headers_install" (and if the layout in both headers is
meant to be the same, whatever ABI we are building for), I have a test
that can be added to glibc to check the layout against that from the
Linux kernel.

	[BZ #23649]
	* sysdeps/unix/sysv/linux/microblaze/sys/procfs.h (struct
	elf_prpsinfo): Use unsigned int for pr_uid and pr_gid.
	* sysdeps/unix/sysv/linux/mips/sys/procfs.h (struct elf_prpsinfo):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/sys/procfs.h (struct
	elf_prpsinfo): Likewise.
	* sysdeps/unix/sysv/linux/riscv/sys/procfs.h (struct
	elf_prpsinfo): Likewise.
	* sysdeps/unix/sysv/linux/sys/procfs.h (struct elf_prpsinfo):
	Likewise.
2018-09-14 13:21:33 +00:00
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
bef1cbf4da Add MAP_FIXED_NOREPLACE from Linux 4.17 to bits/mman.h.
Linux 4.17 adds MAP_FIXED_NOREPLACE (value 0x100000 on most
architectures, 0x200000 on alpha).  This patch adds that macro to
glibc's bits/mman.h headers.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/aarch64/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): New macro.
	* sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/arm/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/mman.h [__USE_MISC]
	(MAP_FIXED_NOREPLACE): Likewise.
2018-06-05 11:04:46 +00:00
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
Joseph Myers
a44061398c Remove unused frame.h header, sigcontextinfo.h macros.
The glibc-internal header frame.h was used in the old
debug/backtrace.c but is now unused.  Similarly, there are some
sigcontextinfo.h macros that are used nowhere in glibc -
ADVANCE_STACK_FRAME and FIRST_FRAME_POINTER were used in the old
debug/backtrace.c, while SIGCONTEXT_EXTRA_ARGS, GET_FRAME, GET_STACK
and CALL_SIGHANDLER were unused even before the removal of that old
implementation (beyond uses of SIGCONTEXT_EXTRA_ARGS in definitions of
CALL_SIGHANDLER).  This patch removes all the unused frame.h headers
and definitions of those macros.

Tested with build-many-glibcs.py.

	* sysdeps/generic/frame.h: Remove file.
	* sysdeps/arm/frame.h: Likewise.
	* sysdeps/hppa/frame.h: Likewise.
	* sysdeps/generic/sigcontextinfo.h (SIGCONTEXT_EXTRA_ARGS): Remove
	macro.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/mach/hurd/i386/sigcontextinfo.h (SIGCONTEXT_EXTRA_ARGS):
	Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(ADVANCE_STACK_FRAME): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/i386/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/s390/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/sh/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(FIRST_FRAME_POINTER): Likewise.
	(ADVANCE_STACK_FRAME): Likewise.
	(GET_STACK): Likewise.
	(GET_FRAME): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(ADVANCE_STACK_FRAME): Likewise.
	(GET_STACK): Likewise.
	(GET_FRAME): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/tile/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_FRAME): Likewise.
	(GET_STACK): Likewise.
	(CALL_SIGHANDLER): Likewise.
2018-03-22 16:40:51 +00:00
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
Adhemerval Zanella
3dc214977b Refactor Linux ARCH_FORK implementation
This patch refactors the ARCH_FORK macro and the required architecture
specific header to simplify the required architecture definitions
to provide the fork syscall semantic and proper document current
Linux clone ABI variant.

Instead of require the reimplementation of arch-fork.h header, this
patch changes the ARCH_FORK to an inline function with clone ABI
defined by kernel-features.h define.  The generic kernel ABI meant
for newer ports is used as default and redefine if the architecture
requires.

Checked on x86_64-linux-gnu and i686-linux-gnu.  Also with a build
for all the afected ABIs.

	* sysdeps/nptl/fork.c (ARCH_FORK): Replace by auch_fork.
	* sysdeps/unix/sysv/linux/alpha/arch-fork.h: Remove file.
	* sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/arch-fork.h: Likewise.
	* sysdeps/unix/sysv/linux/arch-fork.h (arch_fork): New function.
	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h: New file.
	* sysdeps/unix/sysv/linux/riscv/kernel-features.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Define.
	* sysdeps/unix/sysv/linux/createthread.c (ARCH_CLONE): Define to
	__clone2 if __NR_clone2 is defined.
	* sysdeps/unix/sysv/linux/hppa/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel-features.h
	(__ASSUME_CLONE2): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS3): Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Document possible clone
	variants and the define architecture can use.
	(__ASSUME_CLONE_DEFAULT): Define as default.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS2): Likewise.
2018-03-07 17:39:40 -03:00
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
Joseph Myers
e76def72eb Add MAP_SYNC from Linux 4.15.
This patch adds the MAP_SYNC macro from Linux 4.15 to various
bits/mman.h headers.  Note that this is *not* added to all
architectures: in Linux 4.15, this macro is only in
asm-generic/mman.h, and only some architectures' asm/mman.h include
the asm-generic file - the architectures not using the asm-generic
file will need their own values of MAP_SYNC allocated to support this
functionality (some of them also already have conflicting mmap flags
so the value there will have to be different from the generic
0x80000).  Specifically, for glibc architectures, alpha hppa mips
powerpc sparc tile lack allocations of values for MAP_SYNC.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/aarch64/bits/mman.h [__USE_MISC]
	(MAP_SYNC): New macro.
	* sysdeps/unix/sysv/linux/arm/bits/mman.h [__USE_MISC] (MAP_SYNC):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/nios2/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/riscv/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h [__USE_MISC]
	(MAP_SYNC): Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h [__USE_MISC] (MAP_SYNC):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/mman.h [__USE_MISC] (MAP_SYNC):
	Likewise.
2018-02-06 00:36:14 +00:00
Romain Naour
b7ccb5de35 microblaze: don't use copy_file_range syscall with kernel headers < 4.10
copy_file_range syscall was added for microblaze in 4.10.

This patch makes the MicroBlaze kernel-features.h undefine
__ASSUME_COPY_FILE_RANGE for toolchains built with kernel headers < 4.10.

	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_COPY_FILE_RANGE) [__LINUX_KERNEL_VERSION < 0x040A00]: Undef.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=7181e5590e5ba898804aef3ee6be7f27606e6f8b

Signed-off-by: Romain Naour <romain.naour@gmail.com>
2018-01-29 16:12:08 +00:00
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
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
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
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
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
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
Andreas Schwab
43ffc53a35 Use execveat syscall in fexecve (bug 22134)
By using execveat we no longer depend on /proc.  The execveat syscall was
introduced in 3.19, except for a few late comers.
2017-09-19 16:19:14 +02:00
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
Joseph Myers
4fa9b3bfe6 Fix mcontext_t sigcontext namespace (bug 21457).
This patch completes the ucontext.h namespace fixes by fixing issues
related to the use of struct sigcontext as mcontext_t, and inclusion
of <bits/sigcontext.h> even when struct sigcontext is not so used.

Inclusion of <bits/sigcontext.h> by <sys/ucontext.h> is removed; the
way to get the sigcontext structure is by including <signal.h> (in a
context where __USE_MISC is defined); the sysdeps/generic version of
sys/ucontext.h keeps the inclusion by necessity, with a comment about
how this is not namespace-clean, but the only configuration that used
it, MicroBlaze, gets its own version of the header in this patch.
Where mcontext_t was typedefed to struct sigcontext, the contents of
struct sigcontext are inserted (with appropriate namespace handling to
prefix fields with __ when __USE_MISC is not defined); review should
check that this has been done correctly in each case, whether the
definition of struct sigcontext comes from glibc headers or from the
Linux kernel.  This changes C++ name mangling on affected
architectures (which do not include x86_64/x86).

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

2017-08-14  Joseph Myers  <joseph@codesourcery.com>

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/generic/sys/ucontext.h: Add comment about use of struct
	sigcontext and namespace requirements.
	* sysdeps/i386/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/m68k/sys/ucontext.h: Likewise.
	* sysdeps/mips/sys/ucontext.h: Likewise.  Include <bits/types.h>.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (oEXTENSION): Use
	__glibc_reserved1 instead of __reserved.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/alpha/ucontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/ia64/makecontext.c (__makecontext): Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sigcontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): New macro.
	(struct __ia64_fpreg_mcontext): New type.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	(_SC_GR0_OFFSET): Use mcontext_t instead of struct sigcontext.
	(uc_sigmask): Define using __ctx.
	(uc_stack): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/microblaze/sys/ucontext.h: New file.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.  Include <bits/types.h>.
	* conform/Makefile (test-xfail-XPG42/signal.h/conform): Remove.
	(test-xfail-XPG42/sys/wait.h/conform): Likewise.
	(test-xfail-XPG42/ucontext.h/conform): Likewise.
	(test-xfail-UNIX98/signal.h/conform): Likewise.
	(test-xfail-UNIX98/sys/wait.h/conform): Likewise.
	(test-xfail-UNIX98/ucontext.h/conform): Likewise.
	(test-xfail-XOPEN2K/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K/ucontext.h/conform): Likewise.
	(test-xfail-POSIX2008/signal.h/conform): Likewise.
	(test-xfail-POSIX2008/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K8/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K8/sys/wait.h/conform): Likewise.
2017-08-30 22:02:04 +00:00
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
Florian Weimer
2449ae7b2d ld.so: Introduce struct dl_exception
This commit separates allocating and raising exceptions.  This
simplifies catching and re-raising them because it is no longer
necessary to make a temporary, on-stack copy of the exception message.
2017-08-10 16:54:57 +02:00
Nathan Rossi
d95fcb2df4 microblaze: Resolve non-relocatable branch in pt-vfork.S (BZ#21779)
The relative branch directly to __libc_vfork results in an relocation
that cannot be resolved. Specifically a R_MICROBLAZE_64_PCREL relocation
is created for this branch, however for MicroBlaze R_MICROBLAZE_64_PCREL
type relocations symbols are not resolved. Additionally due to the
branch being located in the .text section the instruction cannot be
rewritten as the section is not writable, and causes a segfault at
runtime when loading libpthread.

To resolve this issue, ensure the branch is done using PLT. This removes
the need to modify the instruction and trades the R_MICROBLAZE_64_PCREL
for a more common R_MICROBLAZE_JUMP via the PLT.

	[BZ #21779]
	* sysdeps/unix/sysv/linux/microblaze/pt-vfork.S: Branch using PLT.
2017-07-28 09:21:14 -03:00
Adhemerval Zanella
9b8f8593e5 Consolidate Linux fcntl implementation
This patch consolidates the fcntl Linux syscall generation on
sysdeps/unix/sysv/linux/fcntl.c.  It basically removes all the
architecture specific implementations.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/arm/fcntl.c: Remove file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/hppa/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/fcntl.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Refactor to
	use default implementation.
2017-06-30 15:17:26 -03:00
Joseph Myers
251287734e Rename struct ucontext tag (bug 21457).
The ucontext_t type has a tag struct ucontext.  As with previous such
issues for siginfo_t and stack_t, this tag is not permitted by POSIX
(is not in a reserved namespace), and so namespace conformance means
breaking C++ name mangling for this type.

In this case, the type does need to have some tag rather than just a
typedef name, because it includes a pointer to itself.  This patch
uses struct ucontext_t as the new tag, so the type is mangled as
ucontext_t (the POSIX *_t reservation applies in all namespaces, not
just the namespace of ordinary identifiers).  Another reserved name
such as struct __ucontext could of course be used.

Because of other namespace issues, this patch does not by itself fix
bug 21457 or allow any XFAILs to be removed.

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

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h (struct ucontext): Rename to struct
	ucontext_t.
	* sysdeps/generic/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/i386/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/m68k/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/mips/sys/ucontext.h (struct ucontext): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (struct
	ucontext): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (struct
	ucontext): Likewise.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h (struct ucontext):
	Likewise.
	* sysdeps/powerpc/powerpc32/backtrace.c (struct
	rt_signal_frame_32): Likewise.
	* sysdeps/powerpc/powerpc64/backtrace.c (struct signal_frame_64):
	Likewise.
	* sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h (struct
	kernel_rt_sigframe): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/register-dump.h (register_dump):
	Likewise.
	* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/profil-counter.h
	(__profil_counter): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h
	(SIGCONTEXT): Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_rt_sigframe.h (struct
	kernel_rt_sigframe): Likewise.
	* sysdeps/unix/sysv/linux/nios2/kernel_rt_sigframe.h (struct
	kernel_rt_sigframe): Likewise.
	* sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/sh/makecontext.S (__makecontext):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
	(__start_context): Likewise.
	* sysdeps/unix/sysv/linux/tile/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/register-dump.h (register_dump):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h (SIGCONTEXT):
	Likewise.
2017-06-26 22:03:58 +00:00
Zack Weinberg
491bb0858e Avoid tickling a linker bug from microblaze pt-vfork.S.
libpthread used to have its own vfork implementation that differed
from libc's only in having a pointless micro-optimization.  There is
no longer any use to having a separate copy in libpthread, but the
historical ABI requires a compatibility shim.  microblaze was trying
to be slightly too clever about how it did this, and tickled a linker
bug.  The linker bug should get fixed eventually, but there's no
reason for us to keep tickling it in the meantime.

This doesn't reuse the generic pt-vfork.c because microblaze doesn't
have IFUNC support yet, and it doesn't reuse aarch64/pt-vfork.c
because that fails to generate a tailcall (with GCC 7.1.1).

	* sysdeps/unix/sysv/linux/microblaze/pt-vfork.S: Don't include
	alpha/pt-vfork.S.  Provide own compat shim for vfork and __vfork.
	* sysdeps/unix/sysv/linux/microblaze/vfork.S: Add __libc_vfork alias.
	* sysdeps/unix/sysv/linux/microblaze/localplt.data:
	libpthread.so no longer references __errno_location.
2017-06-01 08:53:56 -04:00
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
Joseph Myers
e3b0580d0d Simplify accept4, recvmmsg, sendmmsg code.
The accept4, recvmmsg and sendmmsg functions had macros
__ASSUME_*_SYSCALL_WITH_SOCKETCALL.  Before we could assume kernels
with the relevant functionality, these macros represented the
conditions under which, on a socketcall architecture, glibc could just
call the syscall unconditionally and not have to deal with socketcall
at all for those functions, because if the syscall didn't work for
them the socketcall call wouldn't either.

Now we can assume kernels with the relevant functionality, the only
question is whether we can assume the syscall is present; if not, we
are on a socketcall architecture and just use socketcall instead.
Thus, this patch removes the macros that are no longer necessary, and
simplifies the code for accept4, recvmmsg and sendmmsg to use the same
logic as the other C implementations of socket functions that may use
a syscall or socketcall depending on kernel support.

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/accept4.c (accept4): Use syscall if
	[__ASSUME_ACCEPT4_SYSCALL], otherwise socketcall.
	* sysdeps/unix/sysv/linux/recvmmsg.c (recvmmsg): Use syscall if
	[__ASSUME_RECVMMSG_SYSCALL], otherwise socketcall.
	* sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Use syscall if
	[__ASSUME_SENDMMSG_SYSCALL], otherwise socketcall.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_ACCEPT4_SYSCALL): Move to general list of macros for
	socket syscalls.
	(__ASSUME_RECVMMSG_SYSCALL): Likewise.
	(__ASSUME_SENDMMSG_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Remove.
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Remove.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise.
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
2017-05-09 21:59:36 +00:00
Adhemerval Zanella
827b823783 posix: Fix internal p{read,write} plt usage
This patch adds internal alias for __pread, __pread64, and __pwrite
following the already in place one for __pwrite64.  This is not used
in any implementation but on microblaze on preadv/pwritev fallback
(since it does not define __ASSUME_PREADV).

In fact it was signaled by commit c35db50ff5 which update the expected
localptl.data for the architecture based on resulted value.  This patch
updates the plt for microblaze now that p{read,write}{64} are correctly
routed to use internal alias.

Checked on x86_64-linux-gnu and a build for all supported architectures
(no all variants although).

	* include/unistd.h (__pread): Add libc_hidden_proto.
	(__pread64): Likewise.
	(__pwrite): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/localplt.data [libc.so]
	(__pread64): Remove.
	* sysdeps/unix/sysv/linux/pread.c (__pread64): Add libc_hidden_weak.
	* sysdeps/unix/sysv/linux/pread64.c (__pread64): Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c (__pwrite): Likewise.
2017-05-02 14:57:40 -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
Adhemerval Zanella
dd5905de03 Consolidate set* Linux implementation
This patch consolidates the Linux setegid, seteuid, setgid, setgroups,
setregid, setresgid, setresuid, setreuid, and setuid implementation on
default sysdeps/unix/sysv/linux/set*.c implementation.  It basically
removes all the architecture define implementations and add support for
__NR_set*32 syscall on Linux default implementation.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/arm/setegid.c: Remove file.
	* sysdeps/unix/sysv/linux/arm/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/setegid.c (setegid): Use
	INLINE_SYSCALL_ERROR_RETURN_VALUE.
	* sysdeps/unix/sysv/linux/seteuid.c (seteuid): Likewise.
	* sysdeps/unix/sysv/linux/setgid.c (setgid): Use __NR_setgid32 if
	defined.
	* sysdeps/unix/sysv/linux/setgroups.c (setgroups): Use
	__NR_setgroups32 if defined.
	* sysdeps/unix/sysv/linux/setregid.c (__setregid): Use __NR_setregid32
	if defined.
	* sysdeps/unix/sysv/linux/setresgid.c (__setresgid): Use
	__NR_setresgid32 is defined.
	* sysdeps/unix/sysv/linux/setresuid.c (__setresuid): Use
	__NR_setresuid32 if defined.
	* sysdeps/unix/sysv/linux/setreuid.c (__setreuid): Use
	__NR_setreuid32 if defined.
	* sysdeps/unix/sysv/linux/setuid.c (__setuid): Use __NR_setuid32 if
	defined.
2017-03-28 12:29:27 -03:00
Adhemerval Zanella
06cf371e97 Consolidate Linux sendto implementation
This patch consolidates the sendto Linux syscall implementation on
sysdeps/unix/sysv/linux/sendto.c.  The changes are:

   1. Define __ASSUME_SENDTO_SYSCALL by default.
   2. Undef it for architectures that do not support __NR_sendto.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove sendto from
	auto-generation list.
	* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_SENDTO_SYSCALL): Define by default.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_SENDTO_SYSCALL): Undef it is kernel does not support
	__NR_sendto.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_SENDTO_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_SENDTO_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_SENDTO_SYSCALL): Remove definition.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_SENDTO_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h:
	(__ASSUME_SENDTO_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sendto.c: Simplify includes.
2017-03-09 15:22:06 +01:00
Adhemerval Zanella
1f8161a801 Consolidate Linux recvfrom implementation
This patch consolidates the recvfrom Linux syscall implementation on
sysdeps/unix/sysv/linux/recvfrom.c.  The changes are:

  1. Define __ASSUME_RECVFROM_SYSCALL by default
  2. Undef it for  architectures that do not support __NR_recvfrom.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove recvfrom from
	auto-generation list.
	* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Define by default.
	(__ASSUME_RECVFROM_SYSCALL): Undef it if kernel does not support
	__NR_recvfrom.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Remove definition.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_RECVFROM_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/recvfrom.c: Simplify includes.
2017-03-09 15:22:06 +01:00
Adhemerval Zanella
01061a7cab Consolidate Linux accept implementation
This patch consolidates the accept Linux syscall implementation on
sysdeps/unix/sysv/linux/accept.c.  The changes are:

  1. Remove accept from auto-generation syscalls.list on the architecture
     that uses __NR_accept.
  2. Define __NR_accept as default (__ASSUME_ACCEPT_SYSCALL) and undef for
     architectures that do not support it.
  3. Remove __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL and decide to use
     __NR_accept4 for accept generation based on __ASSUME_ACCEPT4_SYSCALL.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/accept.c (__libc_accept): Replace
	__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL by __ASSUME_ACCEPT4_SYSCALL.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove accept from
	auto-generation list.
	* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): New define.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
	(__ASSUME_ACCEPT_SYSCALL): Define wheter kernel version supports.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Define.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/s390/kernel-features.h
	(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Undefine.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_ACCEPT_SYSCALL): Undefine for 32 bits.
2017-03-09 15:22:06 +01:00
Joseph Myers
fe3f0488da Restore clock_* librt exports for MicroBlaze (bug 21061).
MicroBlaze had clock_* functions exported from librt in glibc 2.18 and
2.19, as confirmed in
<https://sourceware.org/ml/libc-alpha/2017-01/msg00369.html>, and they
then disappeared in 2.20, presumably as a result of the fix
<https://sourceware.org/ml/libc-alpha/2014-02/msg00598.html> for a
Versions.def bug that had resulted in their unintended inclusion in
2.18 (followed by removal of the Versions.def mechanism that allowed
such bugs).

As they were released in that library, they should be considered part
of the GLIBC_2.18 ABI and so restored for the sake of any binaries
that expect them in that library.  This patch restores them by adding
a MicroBlaze version of clock-compat.c that overrides SHLIB_COMPAT.

Tested (compilation only) with build-many-glibcs.py (where this fixes
the librt ABI test failure; elf/check-execstack still fails and still
needs architecture maintainer attention to fix it or XFAIL it with an
appropriate explanatory comment).

	[BZ #21061]
	* sysdeps/unix/sysv/linux/microblaze/clock-compat.c: New file.
2017-01-19 20:57:16 +00:00
Joseph Myers
c35db50ff5 Update MicroBlaze localplt.data.
This patch updates the MicroBlaze localplt.data based on the results
of a build with build-many-glibcs.py.  This is simply an empirical
update; quite possibly the port could be optimized to remove more
local PLT entry usage.

Tested (compilation tests) with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/microblaze/localplt.data (__pread64):
	Add libc.so PLT entry.
	(__tls_get_addr): Make ld.so PLT entry optional.
2017-01-09 16:09:53 +00:00
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
38cee35b0c Consolidate Linux semtimedop implementation
This patch consolidates the semtimedop Linux implementation in only
one default file, sysdeps/unix/sysv/linux/semtimedop.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 (semtimedop): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (semtimedop): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (semtimedop):
	Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (semtimedop): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (semtimedop): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (semtimedop):
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semtimedop):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semtimedop): Likewise.
	* sysdeps/unix/sysv/linux/m68k/semtimedop.S: Remove file.
	* sysdeps/unix/sysv/linux/s390/semtimedop.c: Reorganize headers and
	add a comment about s390 syscall difference from default one.
	* sysdeps/unix/sysv/linux/semtimedop.c (semtimedop): Use semtimedop
	syscall if it is defined.
2016-12-28 20:31:04 -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