Replace with IS_IN (ldconfig). No change in generated code.
* elf/Makefile (CFLAGS-ldconfig.c): Remove definition of
IS_IN_ldconfig.
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.c: Use IS_IN.
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.h: Likewise.
This sets __HAVE_64B_ATOMICS if provided. It also sets
USE_ATOMIC_COMPILER_BUILTINS to true if the existing atomic ops use the
__atomic* builtins (aarch64, mips partially) or if this has been
tested (x86_64); otherwise, this is set to false so that C11 atomics will
be based on the existing atomic operations.
The current scheme to identify which module a translation unit is
built in depends on defining multiple macros IS_IN_* and also defining
NOT_IN_libc if we're building a non-libc module. In addition, there
is an IN_LIB macro that does effectively the same thing, but for
different modules (notably the systemtap probes). This macro scheme
unifies both ideas to use just one macro IN_MODULE and assign it a
value depending on the module it is being built into. If the module
is not defined, it defaults to MODULE_libc.
Patches that follow will replace uses of IS_IN_* variables with the
IS_IN() macro. libc-symbols.h has been converted already to give an
example of how such a transition will look.
Verified that there are no relevant binary changes. One source change
that will crop up repeatedly is that of nscd_stat, since it uses the
build timestamp as a constant in its logic.
* Makeconfig (in-module): Get value of libof set for the
translation unit.
(CPPFLAGS): Use $(in-module).
* Makerules: Don't suffix routine names for nonlib.
* include/libc-modules.h: New file.
* include/libc-symbols.h: Include libc-modules.h
(IS_IN): New macro to replace IS_IN_* macros.
* elf/Makefile: Set libof-* for each routine.
* elf/rtld-Rules: Likewise.
* extra-modules.mk: Likewise.
* iconv/Makefile: Likewise.
* iconvdata/Makefile: Likewise.
* locale/Makefile: Likewise.
* malloc/Makefile: Likewise.
* nss/Makefile: Likewise.
* sysdeps/gnu/Makefile: Likewise.
* sysdeps/ieee754/ldbl-opt/Makefile: Likewise.
* sysdeps/unix/sysv/linux/Makefile: Likewise.
* sysdeps/s390/s390-64/Makefile: Likewise.
* nscd/Makefile: Set libof-* for each routine. Set CFLAGS and
CPPFLAGS for nscd instead of nonlib.
__get_nprocs is called from malloc code, but calls fgets_unlocked,
which is not an ISO C or POSIX function. This patch fixes it to call
a new __fgets_unlocked name instead.
Note: there are various other uses of fgets_unlocked in glibc's
libraries, and I haven't yet investigated which others might also be
problematic (called directly or indirectly from standard functions)
and so need to change to use __fgets_unlocked.
Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by the patch).
[BZ #17582]
* libio/iofgets.c [weak_alias && !_IO_MTSAFE_IO]
(__fgets_unlocked): Add alias of _IO_fgets. Use libc_hidden_def.
* libio/iofgets_u.c (fgets_unlocked): Rename to __fgets_unlocked
and define as weak alias of __fgets_unlocked. Use
libc_hidden_weak.
(__fgets_unlocked): Use libc_hidden_def.
* include/stdio.h (__fgets_unlocked): Declare. Use
libc_hidden_proto.
* sysdeps/unix/sysv/linux/getsysstats.c (phys_pages_info): Use
__fgets_unlocked instead of fgets_unlocked.
* sysdeps/unix/sysv/linux/alpha/getsysstats.c
(GET_NPROCS_CONF_PARSER): Likewise.
* sysdeps/unix/sysv/linux/sparc/getsysstats.c
(GET_NPROCS_CONF_PARSER): Likewise.
Continuing the removal of unused __libc_* function names, this patch
removes the __libc_waitpid name.
Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by the patch; __waitpid, which is exported from
shared libc, changes from weak to strong on some configurations, which
is of no significance).
* include/sys/wait.h (__libc_waitpid): Remove declaration.
* posix/waitpid.c (__libc_waitpid): Rename to __waitpid.
(__waitpid): Don't define as alias. Use libc_hidden_def not
libc_hidden_weak.
(waitpid): Define as alias of __waitpid.
* sysdeps/unix/bsd/waitpid.c (__libc_waitpid): Rename to
__waitpid.
(__waitpid): Don't define as alias. Use libc_hidden_def not
libc_hidden_weak.
(waitpid): Define as alias of __waitpid.
* sysdeps/unix/sysv/linux/i386/syscalls.list (waitpid): Remove
__libc_waitpid alias.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (waitpid): Likewise.
* sysdeps/unix/sysv/linux/powerpc/syscalls.list (waitpid):
Likewise.
* sysdeps/unix/sysv/linux/sh/syscalls.list (waitpid): Likewise.
* sysdeps/unix/sysv/linux/sparc/syscalls.list (waitpid): Likewise.
* sysdeps/unix/sysv/linux/tile/waitpid.S (__libc_waitpid): Remove
alias.
* sysdeps/unix/sysv/linux/waitpid.c (__libc_waitpid): Rename to
__waitpid.
(__waitpid): Don't define as alias. Use libc_hidden_def not
libc_hidden_weak.
(waitpid): Define as alias of __waitpid.
For maximum paranoia we run ld.so through the normal set
of tests for all of the shared libraries. This includes
running ld.so through check-localplt, check-textrel, and
check-execstack. While none of these should trigger any
failures given the way ld.so is built, it might possibly
fail if a developer does something wrong. This paranoia
was triggered by a discussion over the use of __strcpy
vs. strcpy [1] and if the symbol could leak and use the
libc.so version.
The check-localplt test fails right away because localplt.data
needs updating for all arches. By default we add 6 new symbols:
__tls_get_addr, __libc_memalign, malloc, calloc, realloc and
free. Other machines like i386, power, and s390 require some
different symbol sets e.g. ___tls_get_addr vs. __tls_get_addr
for i386.
Verified for i386
Verified for x86_64
Verified for ppc32
Verified for ppc64
Verified for ppc64le
Verified for arm
Verified for aarch64
Verified for s390
Verified for s390x
Guessed for alpha
Guessed for ia64
Guessed for m68k
Guessed for microblaze
Guessed for sparc32
Guessed for sparc64
Defaults for sh
Defaults for mips
Defaults for hppa
Defaults for tile
Machine manintainers notified to double check the data
used in localplt.data.
[1] https://sourceware.org/ml/libc-alpha/2014-10/msg00548.html
Continuing the removal of unused __libc_* function names, this patch
removes the __libc_nanosleep name.
Tested for x86_64 (testsuite, and that the disassembly of installed
shared libraries is unchanged by the patch; __nanosleep changes from
weak to strong, which is of no significance).
* posix/nanosleep.c (__libc_nanosleep): Rename to __nanosleep.
(__nanosleep): Do not define as alias.
(nanosleep): Define as alias of __nanosleep.
* sysdeps/unix/sysv/linux/syscalls.list (nanosleep): Remove
__libc_nanosleep name.
Continuing the removal of unused __libc_* function names, this patch
removes the __libc_pselect alias.
Tested for x86_64 that installed stripped shared libraries are
unchanged by this patch.
* misc/pselect.c [!__pselect] (__libc_pselect): Remove alias.
* sysdeps/unix/sysv/linux/pselect.c [__NR_pselect6]
(__libc_pselect): Likewise.
Concluding the move of syscall definitions to syscalls.list, where the
removal of support for old kernel versions has made this possible,
this patch removes C definitions of pread, pread64, pwrite and
pwrite64 for powerpc64. As far as I can tell, the existing
syscalls.list definitions in
sysdeps/unix/sysv/linux/wordsize-64/syscalls.list should suffice to
produce results equivalent to what these C files do.
[BZ #14138]
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pread.c: Remove file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite64.c: Likewise.
glibc has lots of __libc_* function names that no longer serve any
purpose (are not used for any calls or exported at a public symbol
version). This patch removes __libc_creat. It has the effect of
creat becoming a strong symbol instead of a weak symbol in various
cases, but that's fine; in shared libraries it doesn't matter at all,
while for static linking the only other symbol sometimes defined in
the same object is creat64, and whenever creat64 is a reserved name so
is creat.
Other such cases of unnecessary __libc_* symbols are expected to be
dealt with in separate patches over time.
Tested for x86_64 (testsuite, and that the disassembly of installed
shared libraries is unchanged by the patch).
* include/fcntl.h (__libc_creat): Remove declaration.
* io/creat.c (__libc_creat): Rename to creat.
(creat): Do not define as alias.
* sysdeps/unix/sysv/linux/alpha/creat.c (creat64): Define as alias
of creat instead of __libc_creat.
* sysdeps/unix/sysv/linux/generic/creat.c (__libc_creat): Rename
to creat.
(creat): Do not define as alias.
[__WORDSIZE == 64] (creat64): Define as alias of creat instead of
__libc_creat.
* sysdeps/unix/sysv/linux/syscalls.list (creat): Do not define
__libc_creat name.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (creat):
Likewise.
ARM linux kernels before 3.14.3 may or may not support
futex_atomic_cmpxchg_inatomic depending on the kernel configuration (e.g.
CONFIG_CPU_USE_DOMAINS && CONFIG_SMP configuration was not supported)
Starting with 3.14.3 the linux kernel unconditionally enables support for
ARM, and this re-enables the relevant __ASSUME_* macros.
Tested on ARM both with kernels >= 3.14.3 and older kernels.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030E03] (__ASSUME_FUTEX_LOCK_PI): Do
not undefine.
[__LINUX_KERNEL_VERSION >= 0x030E03] (__ASSUME_REQUEUE_PI):
Likewise.
[__LINUX_KERNEL_VERSION >= 0x030E03] (__ASSUME_SET_ROBUST_LIST):
Likewise.
Continuing the move of syscall definitions to syscalls.list, where the
removal of support for old kernel versions has made this possible,
this patch moves various definitions of chown, lchown and fchown.
In most cases the need for special syscalls.list entries (rather than
existing generic ones) is because these architectures use chown32,
lchown32 and fchown32 as syscall names. Some architectures also have
symbol versioning compatibility for older versions of chown having
been equivalent to lchown.
The aliases specified for s390-32 had the effect of exporting
__chown@@GLIBC_2.1 (but not __chown@GLIBC_2.0) despite it not being
listed in Versions files. (I'm not sure why versioned_symbol but not
compat_symbol were effective like that to create such __chown exports
in the absence of Versions entries.) The natural way to preserve that
versioned export of __chown seems to be to add it in a Versions file,
so I did so. (Maybe actually it should be a compat symbol,
__chown@GLIBC_2.1, unless there's a good reason for that export, but
this patch doesn't change anything there.)
Tested for x86.
[BZ #14138]
* sysdeps/unix/sysv/linux/i386/chown.c: Remove file.
* sysdeps/unix/sysv/linux/i386/fchown.c: Likewise.
* sysdeps/unix/sysv/linux/i386/lchown.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/chown.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/fchown.c: Remove file.
* sysdeps/unix/sysv/linux/s390/s390-32/lchown.c: Likewise.
* sysdeps/unix/sysv/linux/sh/chown.c: Likewise.
* sysdeps/unix/sysv/linux/sh/fchown.c: Likewise.
* sysdeps/unix/sysv/linux/sh/lchown.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/chown.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/fchown.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/lchown.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/Versions (GLIBC_2.1): Add
__chown.
* sysdeps/unix/sysv/linux/i386/syscalls.list (chown): Add syscall.
(lchown): Likewise.
(fchown): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list (chown):
Likewise.
(lchown): Likewise.
(fchown): Likewise.
* sysdeps/unix/sysv/linux/sh/syscalls.list (chown): Likewise.
(lchown): Likewise.
(fchown): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list (chown):
Likewise.
(lchown): Likewise.
(fchown): Likewise.
In the Linux kernel version 3.17 the signal numbers were rearranged in
order to make hppa like every other arch. Previously we started
__SIGRTMIN at 37, and that meant several pieces of important software,
including systemd, would fail to build. To support systemd we removed
SIGEMT and SIGLOST, and rearranged the others according to expected
values. This is technically an ABI incompatible change, but because
zero applications use SIGSTKFLT, SIGXCPU, SIGXFSZ and SIGSYS nothing
broke. Nothing uses SIGEMT and SIGLOST, and they were present for
HPUX compatibility which is no longer supported. Thus because nothing
breaks we don't do any compatibility work here.
Upstream kernel commit is 1f25df2eff5b25f52c139d3ff31bc883eee9a0ab.
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2014-10-23 Carlos O'Donell <carlos@systemhalted.org>
Helge Deller <deller@gmx.de>
[BZ #17508]
* sysdeps/unix/sysv/linux/hppa/bits/signum.h: Remove SIGEMT.
Define SIGSTKFLT as 7. Define SIGSYS as 31. Define SIGXCPU as 12.
Remove SIGLOST. Define SIGXFSZ as 30. Define __SIGRTMIN as 32.
This satisfies a symbol reference created with:
.symver __libc_vfork, vfork@GLIBC_2.0
where `__libc_vfork' has not been defined or referenced. In this case
the `vfork@GLIBC_2.0' reference is supposed to be discarded, however a
bug present in GAS since forever causes an undefined symbol table entry
to be created. This in turn triggers a problem in the linker that can
manifest itself by link errors such as:
ld: libpthread.so: invalid string offset 2765592330 >= 5154 for section `.dynstr'
The GAS and linker bugs need to be resolved, but we can avoid them too
by providing a `__libc_vfork' definition just like our other platforms.
[BZ #17485]
* sysdeps/unix/sysv/linux/mips/vfork.S (__libc_vfork): Define.
Continuing the move of syscall definitions to syscalls.list, where the
removal of support for old kernel versions has made this possible,
this patch moves definitions of readv and writev.
The relevant syscalls.list entries were already in
sysdeps/unix/syscalls.list, but to match the C files they needed to
have the names __libc_readv and __libc_writev added. In fact, I don't
see anything making use of those names - as far as I can tell, these
functions could just be defined as __readv and __writev with aliases
readv and writev. But cleaning up unnecessary aliases for functions
should be a separate matter from cleaning up unnecessary C syscall
wrappers.
Tested for x86_64.
[BZ #14138]
* sysdeps/unix/syscalls.list (readv): Use __libc_readv as strong
name.
(writev): Use __libc_writev as strong name.
* sysdeps/unix/sysv/linux/readv.c: Remove file.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
The recvmsg could return 0 under some conditions and cause the
make_request function to be stuck in an infinite loop.
Thank you Jim King <jim.king@simplivity.com> for posting Paul's patch
on the list.
This patch removes some stray (unused) *_internal aliases, and
function prototypes with no corresponding definitions at all, at least
some of which were missed in previous INTDEF / INTUSE removal.
Not removed in this patch: __canonicalize_directory_name_internal,
noticed in the course of preparing this patch, isn't an alias, but an
actual function in sysdeps/mach/hurd/getcwd.c - apparently unused,
however.
Tested for x86_64 that installed stripped shared libraries are
unchanged by this patch.
[BZ #14132]
* include/wctype.h [!_ISOMAC] (__iswalpha_l_internal): Remove
declaration.
[!_ISOMAC] (__iswdigit_l_internal): Likewise.
[!_ISOMAC] (__iswspace_l_internal): Likewise.
[!_ISOMAC] (__iswxdigit_l_internal): Likewise.
[!_ISOMAC] (__iswctype_internal): Likewise.
* stdio-common/siglist.c (_sys_siglist_internal): Remove alias.
* sysdeps/unix/syscalls.list (chown): Remove __chown_internal
alias.
(fcntl): Remove __fcntl_internal alias.
* sysdeps/unix/sysv/linux/hppa/syscalls.list (connect): Remove
__connect_internal alias.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (connect):
Likewise.
Bug 14132 is removal of the old INTDEF/INTUSE system of *_internal
aliases as obsoleted by the hidden_proto / hidden_def system. Various
cases were cleaned up in 2012, but some remain. This patch removes
the use of this mechanism for __adjtimex.
Tested for x86_64 that stripped installed shared libraries are
unchanged by the patch.
[BZ #14132]
* sysdeps/unix/sysv/linux/include/sys/timex.h: New file.
* sysdeps/unix/sysv/linux/adjtime.c [!ADJTIMEX] (ADJTIMEX): Do not
use INTUSE.
[!ADJTIMEX] (INTUSE(__adjtimex)): Remove declaration.
* sysdeps/unix/sysv/linux/alpha/adjtime.c (__adjtimex_internal):
Remove alias.
(__adjtimex): Define using libc_hidden_ver.
* sysdeps/unix/sysv/linux/ntp_gettime.c (INTUSE(__adjtimex)):
Remove declaration.
(ntp_gettime): Call __adjtimex directly.
* sysdeps/unix/sysv/linux/ntp_gettimex.c (INTUSE(__adjtimex)):
Remove declaration.
(ntp_gettimex): Call __adjtimex directly.
* sysdeps/unix/sysv/linux/syscalls.list (adjtimex): Remove
__adjtimex_internal alias.
This patch enables syscalls.list entries to specify both compat and
non-compat symbol versions for the same syscall definition, making use
of this for setrlimit / chown / lchown where the inability to specify
such aliases showed up in the course of work on bug 14138.
The change to make-syscalls.sh is minimal: adding a SHARED conditional
on the compat_symbol calls. It remains the case that if a compat
symbol version is specified, the syscall is only built for the shared
library at all if an explicit symbol version is given for a non-compat
symbol (so it's necessary to specify "lchown@@GLIBC_2.0
chown@GLIBC_2.0" rather than just "lchown chown@GLIBC_2.0"). It also
remains the case, as already commented in make-syscalls.sh, that no
SHLIB_COMPAT conditionals are generated, so there would be problems if
the same syscalls.list file, with compat symbols, were used for both
configurations that should have those symbols and configurations for
which they should be conditioned out with SHLIB_COMPAT.
Tested for x86.
* sysdeps/unix/make-syscalls.sh (emit_weak_aliases): Condition
compat_symbol calls on [SHARED].
* sysdeps/unix/sysv/linux/powerpc/lchown.S: Remove file.
* sysdeps/unix/sysv/linux/i386/syscalls.list (oldsetrlimit):
Remove.
(setrlimit): Add setrlimit@GLIBC_2.0 alias.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list
(oldsetrlimit): Remove.
(setrlimit): Add setrlimit@GLIBC_2.0 alias.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list
(lchown): New syscall entry.
(oldsetrlimit): Remove.
(setrlimit): Add setrlimit@GLIBC_2.0 alias.
* sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list
(oldsetrlimit): Remove.
(setrlimit): Add setrlimit@GLIBC_2.0 alias.
Continuing the move of syscall definitions to syscalls.list, where the
removal of support for old kernel versions has made this possible,
this patch moves various definitions of chown, lchown and fchown.
In most cases the need for special syscalls.list entries (rather than
existing generic ones) is because these architectures use chown32,
lchown32 and fchown32 as syscall names. Some architectures also have
symbol versioning compatibility for older versions of chown having
been equivalent to lchown.
In the case of powerpc, chown.c (providing the chown@@GLIBC_2.1
default version) is replaced by a syscalls.list entry (for powerpc32;
powerpc64 has no need for this because of its more recent minimum
symbol version, so can just use the entry in
sysdeps/unix/syscalls.list), but lchown.S is left as-is because it
provides the compat version of chown as an actual alias for __lchown,
which is not yet supported by syscalls.list. This file can be removed
once such aliases are supported in syscalls.list.
[BZ #14138]
* sysdeps/unix/sysv/linux/arm/fchown.c: Remove file.
* sysdeps/unix/sysv/linux/arm/lchown.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/fchown.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/lchown.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/chown.c: Likewise.
* sysdeps/unix/sysv/linux/arm/syscalls.list (lchown): Add syscall.
(fchown): Likewise.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (lchown): Likewise.
(fchown): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list (chown):
Likewise.
Continuing the move of syscall definitions to syscalls.list, where
previous cleanups have made this possible, this patch moves the
definition of execve. (In this case, it was the removal of bounded
pointers support, rather than old kernel support, which made the move
possible.)
Tested for x86_64.
[BZ #14138]
* sysdeps/unix/sysv/linux/execve.c: Remove file.
* sysdeps/unix/sysv/linux/syscalls.list (execve): Add syscall.
Continuing the move of syscall definitions to syscalls.list, where the
removal of support for old kernel versions has made this possible,
this patch moves definitions of various *at functions in
sysdeps/unix/sysv/linux/.
These particular moves are straightforward: there are no #includes of
these source files, no special architecture-specific versions, no
special symbol version handling and no aliases. Each source file can
be replaced by a single line in sysdeps/unix/sysv/linux/syscalls.list.
Tested for x86_64.
[BZ #14138]
* sysdeps/unix/sysv/linux/syscalls.list (fchownat): New syscall.
(linkat): Likewise.
(mkdirat): Likewise.
(readlinkat): Likewise.
(renameat): Likewise.
(symlinkat): Likewise.
(unlinkat): Likewise.
* sysdeps/unix/sysv/linux/fchownat.c: Remove file.
* sysdeps/unix/sysv/linux/linkat.c: Likewise.
* sysdeps/unix/sysv/linux/mkdirat.c: Likewise.
* sysdeps/unix/sysv/linux/readlinkat.c: Likewise.
* sysdeps/unix/sysv/linux/renameat.c: Likewise.
* sysdeps/unix/sysv/linux/symlinkat.c: Likewise.
* sysdeps/unix/sysv/linux/unlinkat.c: Likewise.
When a shlib-versions file has a DEFAULT line, it's not necessary to
specify the same default minimum symbol version on the lines for
individual libraries. If those lines otherwise duplicate the default
SONAME for the library in question, they can be removed completely.
This patch makes such cleanups: version entries for ld.so are removed
(leaving just the definition of the architecture-specific dynamic
linker name) and entries for libpthread are removed completely (since
the default is libpthread.so.0).
Tested for x86_64 that the installed shared libraries are unchanged by
this patch.
There are various architectures (hppa, ia64, mips, sh, sparc64) that
define minimum symbol versions (or in the case of mips, omission of
symbol versions) only for particular libraries without a DEFAULT line.
None of these are equivalent to something simpler with a DEFAULT line
because all have some other libraries, not explicitly mentioned, with
symbol versions that would be omitted were such a line used. In the
mips case I'm pretty sure it was a mistake not to omit the 2.1 symbols
for libthread_db; for the others I don't know if it was a mistake or
deliberate that some symbols in various libraries have 2.0 or 2.1
versions despite other libraries having a 2.2 minimum.
This concludes the shlib-versions cleanups I'm aware of.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: Do not
specify symbol version for ld.so. Do not include entry for
libpthread.
* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
This patch eliminates the mixture of SONAME information in
shlib-versions files and SONAME information used to generate
gnu/lib-names.h in makefiles, with the information in the makefiles
being removed so all this information comes from the shlib-versions
files.
So that gnu/lib-names.h supports multiple ABIs, it is changed to be
generated on the same basis as gnu/stubs.h: when there are multiple
ABIs, gnu/lib-names.h is a wrapper header (the same header installed
whatever ABI is being built) and separate headers such as
gnu/lib-names-64.h contain the substantive contents (only one such
header being installed by any glibc build).
The rules for building gnu/lib-names.h were moved from Makeconfig to
Makerules because they need to come after sysdeps makefiles are
included (now that "ifndef abi-variants" is a toplevel conditional on
the rules rather than $(abi-variants) being evaluated later inside the
commands for a rule).
Tested for x86_64 and x86 that the installed shared libraries are
unchanged by this patch, and examined the installed gnu/lib-names*.h
headers by hand. Also tested the case of a single ABI (where there is
just a single header installed, again like stubs.h) by hacking
abi-variants to empty for x86_64.
[BZ #14171]
* Makeconfig [$(build-shared) = yes]
($(common-objpfx)soversions.mk): Don't handle SONAMEs specified in
makefiles.
[$(build-shared) = yes && $(soversions.mk-done) = t]
($(common-objpfx)gnu/lib-names.h): Remove rule.
[$(build-shared) = yes && $(soversions.mk-done) = t]
($(common-objpfx)gnu/lib-names.stmp): Likewise. Split and moved
to Makerules.
[$(build-shared) = yes && $(soversions.mk-done) = t]
(before-compile): Don't append $(common-objpfx)gnu/lib-names.h
here.
[$(build-shared) = yes && $(soversions.mk-done) = t]
(common-generated): Don't append gnu/lib-names.h and
gnu/lib-names.stmp here.
* Makerules [$(build-shared) = yes && $(soversions.mk-done) = t]
(lib-names-h-abi): New variable.
[$(build-shared) = yes && $(soversions.mk-done) = t]
(lib-names-stmp-abi): Likewise.
[$(build-shared) = yes && $(soversions.mk-done) = t &&
abi-variants] (before-compile): Append
$(common-objpfx)$(lib-names-h-abi).
[$(build-shared) = yes && $(soversions.mk-done) = t &&
abi-variants] (common-generated): Append gnu/lib-names.h.
[$(build-shared) = yes && $(soversions.mk-done) = t &&
abi-variants] (install-others-nosubdir): Depend on
$(inst_includedir)/$(lib-names-h-abi).
[$(build-shared) = yes && $(soversions.mk-done) = t &&
abi-variants] ($(common-objpfx)gnu/lib-names.h): New rule.
[$(build-shared) = yes && $(soversions.mk-done) = t]
($(common-objpfx)$(lib-names-h-abi)): New rule.
[$(build-shared) = yes && $(soversions.mk-done) = t]
($(common-objpfx)$(lib-names-stmp-abi)): Likewise.
[$(build-shared) = yes && $(soversions.mk-done) = t]
(common-generated): Append $(lib-names-h-abi) and
$(lib-names-stmp-abi).
* scripts/lib-names.awk: Do not handle multi being set.
* sysdeps/unix/sysv/linux/aarch64/Makefile (abi-lp64-ld-soname):
Remove variable.
(abi-lp64_be-ld-soname): Likewise.
* sysdeps/unix/sysv/linux/arm/Makefile (abi-soft-ld-soname):
Likewise.
(abi-hard-ld-soname): Likewise.
* sysdeps/unix/sysv/linux/i386/shlib-versions: New file.
* sysdeps/unix/sysv/linux/mips/Makefile (abi-o32_soft-ld-soname):
Remove variable.
(abi-o32_hard-ld-soname): Likewise.
(abi-o32_soft_2008-ld-soname): Likewise.
(abi-o32_hard_2008-ld-soname): Likewise.
(abi-n32_soft-ld-soname): Likewise.
(abi-n32_hard-ld-soname): Likewise.
(abi-n32_soft_2008-ld-soname): Likewise.
(abi-n32_hard_2008-ld-soname): Likewise.
(abi-n64_soft-ld-soname): Likewise.
(abi-n64_hard-ld-soname): Likewise.
(abi-n64_soft_2008-ld-soname): Likewise.
(abi-n64_hard_2008-ld-soname): Likewise.
* sysdeps/unix/sysv/linux/powerpc/Makefile (abi-64-v1-ld-soname):
Likewise.
(abi-64-v2-ld-soname): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: Add
ld.so entries.
* sysdeps/unix/sysv/linux/s390/Makefile (abi-64-ld-soname): Remove
variable.
* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Add ld.so
entry.
* sysdeps/unix/sysv/linux/x86/Makefile (abi-32-ld-soname): Remove
variable.
(abi-64-ld-soname): Likewise.
(abi-x32-ld-soname): Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Add ld.so
entry.
* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
Bug 14138 is followup cleanup after removal of support for old Linux
kernel versions: moving syscalls to syscalls.list where the only
reason for using C definitions was kernel version conditionals that
are no longer present.
This patch deals with the case of setrlimit
(sysdeps/unix/sysv/linux/i386/setrlimit.c, included by various other
architectures). Where needed (where there is also a compat symbol for
setrlimit@GLIBC_2.0), new syscalls.list entries are added. Where not
needed (where there is no such compat symbol and the minimum symbol
version for libc is 2.2 or later), no such entries are added as that
in sysdeps/unix/syscalls.list will suffice. Thus arm and sh need no
such entries, while m68k and powerpc need entries only in a
subdirectory syscalls.list file rather than for all configurations
that previously used setrlimit.c.
(setrlimit@@GLIBC_2.2 and setrlimit@GLIBC_2.0 are now semantically
identical - the new symbol version was about a change of types from
signed to unsigned and the former compatibility code for dealing with
large unsigned arguments on old kernels is no longer needed or
present, having been removed with support for pre-2.4 kernels.
However, making the two versions into aliases doesn't work at present:
the case of having both default and non-default symbol versions on the
same syscalls.list line results in a compat_symbol call in code built
for static libc, which doesn't compile. I don't suppose it would be
hard to generate SHARED conditionals from make-syscalls.sh to fix
this, but in any case this patch doesn't make things any worse, as the
functions weren't aliases before the patch either.)
Tested for x86, and ran ABI tests for ARM as an example of an
architecture where the setrlimit.c file was just removed without
adding syscalls.list entries.
[BZ #14138]
* sysdeps/unix/sysv/linux/arm/setrlimit.c: Remove file.
* sysdeps/unix/sysv/linux/i386/setrlimit.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/setrlimit.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/setrlimit.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/setrlimit.c: Likewise.
* sysdeps/unix/sysv/linux/sh/setrlimit.c: Likewise.
* sysdeps/unix/sysv/linux/i386/syscalls.list (setrlimit): Add
syscall entry for GLIBC_2.2 symbol version.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list (setrlimit):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list
(setrlimit): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list (setrlimit):
Likewise.
sysdep.h was defining _SYS_AUXV_H in order to avoid an include guard check
in hwcap.h. Unfortunately it didn't undefine it so it could leak out into
code and caused a build failure with -Wimplicit-function-declaration
building tst-auxv on ARM.
ChangeLog:
2014-09-23 Will Newton <will.newton@linaro.org>
* sysdeps/unix/sysv/linux/arm/bits/hwcap.h: Check for
_LINUX_ARM_SYSDEP_H include guard too.
* sysdeps/unix/sysv/linux/arm/sysdep.h (_SYS_AUXV_H): Remove
define.
This patch removes the --enable-oldest-abi configure option, which has
long been bitrotten (as reported in bug 6652). The principle of
removing this option was agreed in the thread starting at
<https://sourceware.org/ml/libc-alpha/2013-07/msg00174.html>.
Tested for x86_64 and x86 that the installed shared libraries other
than libc.so are unchanged by this patch and that libc.so disassembly
and symbol versions are unchanged (debug info changes because of
changed line numbers in csu/version.c).
[BZ #6652]
* Makeconfig (soversions-default-setname): Remove variable.
($(common-objpfx)soversions.i): Don't pass default_setname to
soversions.awk.
* Makerules ($(common-objpfx)abi-versions.h): Don't pass
oldest_abi to abi-versions.awk.
* config.h.in (GLIBC_OLDEST_ABI): Remove macro undefine.
* config.make.in (oldest-abi): Remove variable.
* configure.ac (--enable-oldest-abi): Remove configure option.
* configure: Regenerated.
* csu/version.c (banner) [GLIBC_OLDEST_ABI]: Remove conditional
text.
* scripts/abi-versions.awk: Do not handle oldest_abi variable.
* scripts/soversions.awk: Do not handle default_setname variable.
* sysdeps/mach/hurd/configure.ac: Do not handle oldest_abi
variable.
* sysdeps/mach/hurd/configure: Regenerated.
* sysdeps/unix/sysv/linux/configure.ac: Do not handle oldest_abi
variable.
* sysdeps/unix/sysv/linux/configure: Regenerated.
This patch removes the first column (patterns matching configuration
names) from shlib-versions, leaving shlib-versions entry selection
based purely on sysdeps directories.
An implication of this removal is that the default for any non-Linux
ports using NPTL will be the same SONAMEs for NPTL libraries as for
Linux (as those defaults, previously limited to .*-.*-linux.*, are
left in nptl/shlib-versions and nptl_db/shlib-versions).
Special host_os handling in configure.ac that was purely for
shlib-versions is removed. (The host_os setting is still used for
libc-abis - see
<https://sourceware.org/ml/libc-alpha/2014-01/msg00375.html> regarding
that - but no entries there are affected by this change.)
Tested on x86_64 and x86 that the installed shared libraries are
unchanged by this patch.
* scripts/soversions.awk: Do not handle configuration names.
* Makeconfig ($(common-objpfx)soversions.i): Do not pass cpu,
vendor and os variables to soversions.awk.
* configure.ac: Do not modify gnu-* host_os.
* configure: Regenerated
* shlib-versions: Remove first column with configuration names.
* nptl/shlib-versions: Likewise.
* nptl_db/shlib-versions: Likewise.
* sysdeps/hppa/shlib-versions: Likewise.
* sysdeps/m68k/shlib-versions: Likewise.
* sysdeps/mach/hurd/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/aarch64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/alpha/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/arm/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/hppa/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/ia64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/microblaze/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/mips/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions:
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sh/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/tile/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
libidn/ChangeLog:
* shlib-versions: Remove first column with configuration names.
This patch makes
sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions use %ifdef
conditionals around the different symbol version definitions for big
and little endian. (It doesn't actually change the host patterns used
for those definitions; the point is to make it possible to remove the
first column from shlib-versions by eliminating the last case where it
would be harmful for it to be treated as .*-.*-.*.) The conditional
is based on the ELFv1/ELFv2 distinction rather than BE/LE, since
that's what's already tested in configure and used for the ld.so
soname in the Makefiles. (Of course if BE ELFv2 were supported in
future, it would get new symbol versions and so need new
conditionals.)
* sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac
(HAVE_ELFV2_ABI): AC_DEFINE in ELFv2 case.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/configure:
Regenerated.
* config.h.in (HAVE_ELFV2_ABI): New macro undefine.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions:
Condition symbol version definitions on [HAVE_ELFV2_ABI].
This patch moves OS-specific entries in the top-level shlib-versions
file to appropriate sysdeps directories. I left the entries in
nptl/shlib-versions and nptl_db/shlib-versions unchanged; I think it
can be for those doing non-Linux NPTL-using ports to figure out
whether those entries should actually be OS-independent or should move
to sysdeps.
Given these two patches, I think the only further change needed before
the first column of shlib-versions can be eliminated will be changing
sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions to use %ifdef
to distinguish BE and LE configurations, instead of relying on the
powerpc64-.*-linux.* and powerpc.*le-.*-linux.* patterns.
Tested on x86_64 that the installed shared libraries are unchanged by
this patch.
* shlib-versions: Remove OS-specific entries. Moved to files in
sysdeps.
* sysdeps/mach/hurd/shlib-versions: New file.
* sysdeps/unix/sysv/linux/shlib-versions: Likewise.
This patch eliminates another way in which ex-ports and non-ex-ports
architectures differ, by moving architecture-specific entries from the
top-level shlib-versions file and that in nptl/ to appropriate sysdeps
directories. As with my previous patch
<https://sourceware.org/ml/libc-alpha/2014-06/msg00949.html>, I do not
change the regular expressions used; even where the present
expressions seem more general, I believe they are in fact specific to
the chosen sysdeps directory, because any port that matches the
expression but not the sysdeps directory does not currently exist, and
so would use different symbol versions if added in future (and an
intended goal of these changes is to eliminate the first column in
shlib-versions completely rather than having two different mechanisms
in use for system-specific configuration).
Tested on x86_64 that this does not change the installed shared
libraries. (x86_64 of course does not provide much test coverage for
this patch - what should be architecture-specific contents in
shlib-versions for x86_64 is currently abi-*-ld-soname Makefile
settings, until gnu/lib-names.h is generated more like gnu/stubs.h so
those can move back to shlib-versions.)
* nptl/shlib-versions: Remove architecture-specific entries.
Moved to files in sysdeps.
* shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: New
file.
* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sh/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/shlib-versions: Likewise.
