| Commit message (Collapse) | Author | Age | Files | Lines |
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from POSIX-generic code.
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type conversions without cast.
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Carlos reported failures in conform/ tests in environments where the
compiler used could only find headers in glibc's source and build
trees, not any previously installed headers
<https://sourceware.org/ml/libc-alpha/2014-09/msg00040.html>.
This patch moves nptl/semaphore.h to sysdeps/pthread/semaphore.h so
that it can be found by builds from all glibc subdirectories; it's not
in any way NPTL-specific. (I left the Makefile setting to install
this header in nptl/, but maybe it should move as well - it's just not
clear to me what ifeq ($(subdir),...) conditional should be used to
select the directory to associate the header with for installation
purposes. The path in the toplevel Makefile used for begin-end-check
also remains hardcoded; it's a known todo issue to rework that test to
run in each subdirectory checking the headers installed from that
subdirectory, rather than a separate hardcoded list.)
Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by the patch). I did *not* test a
configuration such as that in which Carlos saw failure.
* nptl/semaphore.h: Move to ...
* sysdeps/pthread/semaphore.h: ... here.
* Makefile (installed-headers): Change nptl/semaphore.h to
sysdeps/pthread/semaphore.h.
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Carlos reported failures in conform/ tests in environments where the
compiler used could only find headers in glibc's source and build
trees, not any previously installed headers
<https://sourceware.org/ml/libc-alpha/2014-09/msg00040.html>.
This patch adds wrappers for two of the affected headers to include/,
which is the normal way to make headers visible when building or
testing in directories other than the one containing the header (I
suppose these headers weren't needed in any such directories except
conform/, or other build or test failures would have resulted). I
believe the same issue applies at least to regexp.h and re_comp.h - we
don't currently have conform/ expectations for those, but when such
expectations are added we'll also need to add header wrappers.
Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by the patch). I did *not* test a
configuration such as that in which Carlos saw failure.
* include/cpio.h: New file.
* include/fmtmsg.h: Likewise.
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Without this, on gcc 4.8.2 the built glibc crashes when memcpy
or memset are invoked, since they call themselves recursively.
See commit 85c2e6110c9a01ec for the generic inhibit_loop_to_libcall.
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Add __USE_GNU guards on 'socket/sys/socket.h' __sendmmsg prototype.
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integer value instead of boolean.
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* malloc/malloc.c: Fix powerof2 check.
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ldbl-128ibm uses ldbl-128 e_lgammal_r implementation as is, however some
constants definitions overflows for IBM long double range. This patch
suppress the compiler warnings until the ldbl-128ibm implementation is
fixed.
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This patch merges the latest release of gettext into the intl
subdirectory. The initial motivation was to include the plural.y
changes which enable building with bison 3.0, but the majority
of the other changes are merely cosmetic so it seemed like merging
the whole directory was simpler than trying to take it piecemeal.
The merge was done by copying across the latext gettext code and
adding in a few small glibc changes that have been added over the
years that seemed beneficial, as well as a couple of small build
fixes that should be merged back to gettext. I also reverted the
gettext commit:
commit 279b57fc367251666f00e8e2b599b83703451afb
Author: Bruno Haible <bruno@clisp.org>
Date: Fri Jun 14 12:03:49 2002 +0000
Make absolute pathnames inside $LANGUAGE work.
As it caused localedata/tst-setlocale3 to fail and it wasn't clear
that glibc wanted that behaviour.
The merge has dropped many uses of __glibc_likely/unlikely. This is
intentional given that it eases merging. It seems to me that the cost
of continually rewriting these lines when merging and the risk of adding
bugs when doing so outweighs the benefits of using these macros when
code is shared with another project.
Tested with make check on x86_64.
ChangeLog:
2014-12-11 Will Newton <will.newton@linaro.org>
Merge gettext 0.19.3 into intl/.
This involves a number of cosmetic changes to comments
and ANSI function definitions and prototypes throughout
all the files. The gettext copyright header is used but
with the date ranges taken from the glibc copy.
* NEWS: Add gettext merge to 2.21.
* intl/bindtextdom.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
Use gl_* locking primitives rather than __libc_* ones.
Use __builtin_expect rather than __glibc_likely/unlikely.
* intl/dcgettext.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
* intl/dcigettext.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
(INTDIV0_RAISES_SIGFPE): New define.
Use gl_* locking primitives rather than __libc_* ones.
Include eval-plural.h instead of plural-eval.c.
Use __builtin_expect rather than __glibc_likely/unlikely.
* intl/dcngettext.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
* intl/dgettext.c: Likewise.
* intl/dngettext.c: Likewise.
* intl/plural-eval.c: Renamed to...
* intl/eval-plural.h: ...this.
* intl/explodename.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
(_nl_explode_name): Use strchr instead of __rawmemchr.
* intl/finddomain.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
Use gl_* locking primitives rather than __libc_* ones.
(_nl_find_domain): Use malloc rather than alloca for
allocation of temporary locale name.
* intl/gettext.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
* intl/gettextP.h: Switch to gettext copyright.
Use ANSI definitions and prototypes.
Use gl_* locking primitives rather than __libc_* ones.
* intl/gmo.h: Switch to gettext copyright.
(struct sysdep_string): Move struct segment_pair outside of
struct definition.
* intl/hash-string.c: Use ANSI definitions and prototypes.
* intl/hash-string.h: Switch to gettext copyright.
Use ANSI definitions and prototypes.
* intl/l10nflist.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
(_nl_normalize_codeset): Avoid integer overflow.
* intl/loadinfo.h: Switch to gettext copyright.
Use ANSI definitions and prototypes.
(LIBINTL_DLL_EXPORTED): New define.
(PATH_SEPARATOR): New define.
* intl/loadmsgcat.c: Switch to gettext copyright.
* intl/localealias.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
(_nl_expand_alias): Use PATH_SEPARATOR.
* intl/ngettext.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
* intl/plural-exp.c: Likewise.
* intl/plural-exp.h: Switch to gettext copyright.
Use ANSI definitions and prototypes.
(struct expression): Move definition of enum operator outside
of struct definition.
* intl/plural.c: Regenerate.
* intl/plural.y: Switch to gettext copyright.
Use ANSI definitions and prototypes.
Port to bison 3.0.
* intl/textdomain.c: Switch to gettext copyright.
Use ANSI definitions and prototypes.
Use gl_* locking primitives rather than __libc_* ones.
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* debug/warning-nop.c: Add used atrribute.
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As previously discussed in
<https://sourceware.org/ml/libc-alpha/2012-11/msg00798.html>, MIPS (o32)
waitid has build warnings (now errors) because a function is declared
inline but functions with five-argument syscalls cannot be inlined for
MIPS o32.
This patch disables the -Winline warnings for waitid.c using a
MIPS-specific wrapper file. As it's whole-file disabling, there's no
point in using push and pop, so just DIAG_IGNORE_NEEDS_COMMENT is
used.
* sysdeps/unix/sysv/linux/mips/mips32/waitid.c: New file.
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Building MIPS sigaction (for ABIs other than o32) fails because of
"'restore_rt' used but never defined", arising from static functions
being defined in asms and referred to from C code. There is no
corresponding -W option for that warning, so this patch uses
-Wno-error for building sigaction.c.
* sysdeps/unix/sysv/linux/mips/mips64/Makefile
[$(subdir) == signal] (CFLAGS-sigaction.c): New variable.
[$(subdir) == nptl] (CFLAGS-sigaction.c): Likewise.
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Use of strftime, a C90 function, ends up bringing in wcschr, which is
not a C90 function. Although not a conformance bug (C90 reserves
wcs*), this is still contrary to glibc practice of avoiding relying on
those reservations; this patch arranges for the internal uses to use
__wcschr instead, with wcschr being a weak alias. This is more
complicated than some such patches because of the various IFUNC
definitions of wcschr (which include code redefining libc_hidden_def
in a way that involves creating __GI_wcschr manually and so also needs
to create __GI___wcschr after the change of internal uses to use
__wcschr).
Tested for x86_64 and 32-bit x86 (testsuite, and that disassembly of
installed shared libraries is unchanged by the patch).
2014-12-10 Joseph Myers <joseph@codesourcery.com>
Adhemerval Zanella <azanella@linux.vnet.ibm.com>
[BZ #17634]
* wcsmbs/wcschr.c [!WCSCHR] (wcschr): Define as __wcschr.
Undefine after defining function. Define as weak alias of
__wcschr. Use libc_hidden_weak.
* include/wchar.h (__wcschr): Declare. Use libc_hidden_proto.
* sysdeps/i386/i686/multiarch/wcschr-c.c [IS_IN (libc) && SHARED]
(libc_hidden_def): Also define __GI___wcschr alias.
* sysdeps/i386/i686/multiarch/wcschr.S (wcschr): Rename to
__wcschr and define as weak alias of __wcschr.
* sysdeps/powerpc/power6/wcschr.c [!WCSCHR] (WCSCHR): Define as
__wcschr.
[!WCSCHR] (DEFAULT_WCSCHR): Define.
[DEFAULT_WCSCHR] (__wcschr): Use libc_hidden_def.
[DEFAULT_WCSCHR] (wcschr): Define as weak alias of __wcschr. Use
libc_hidden_weak. Do not use libc_hidden_def.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-ppc32.c
[IS_IN (libc) && SHARED] (libc_hidden_def): Also define
__GI___wcschr alias.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr.c
[IS_IN (libc)] (wcschr): Define as macro expanding to
__redirect_wcschr.
[IS_IN (libc)] (__wcschr_ppc): Use __redirect_wcschr in typeof.
[IS_IN (libc)] (__wcschr_power6): Likewise.
[IS_IN (libc)] (__wcschr_power7): Likewise.
[IS_IN (libc)] (__libc_wcschr): New. Define with libc_ifunc
instead of wcschr.
[IS_IN (libc)] (wcschr): Undefine and define as weak alias of
__libc_wcschr.
[!IS_IN (libc)] (libc_hidden_def): Do not undefine and redefine.
* sysdeps/powerpc/powerpc64/multiarch/wcschr.c (wcschr): Rename to
__wcschr and define as weak alias of __wcschr. Use
libc_hidden_builtin_def.
* sysdeps/x86_64/wcschr.S (wcschr): Rename to __wcschr and define
as weak alias of __wcschr. Use libc_hidden_weak.
* time/alt_digit.c (_nl_get_walt_digit): Use __wcschr instead of
wcschr.
* time/era.c (_nl_init_era_entries): Likewise.
* conform/Makefile (test-xfail-ISO/time.h/linknamespace): Remove
variable.
(test-xfail-XPG3/time.h/linknamespace): Likewise.
(test-xfail-XPG4/time.h/linknamespace): Likewise.
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A recent change to libio/tst-ftell-active-handler.c (postdating my
last check for warnings on x86) introduced a format warning from a
long int variable used with a %zu format. This patch fixes it by
using %ld for the format to match the variable.
Tested for x86.
* libio/tst-ftell-active-handler.c (do_ftruncate_test): Use %ld
format for long int variable.
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Under certain conditions on the size of the array and its items,
qsort() may fall back to an in-place quicksort if it cannot allocate
memory for a temporary array with malloc(). This algorithm is not a
stable sort even if the comparison function is written in the
described manner.
Fixes #10672.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
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The stdio locks for streams with the _IO_USER_LOCK flag should not be
touched by internal code.
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As discussed starting at
<https://sourceware.org/ml/libc-alpha/2014-11/msg00323.html>, this
patch makes the glibc build use -Werror by default to avoid
accidentally adding new warnings to the build. The configure option
--disable-werror can be used to disable this.
-Wno-error=undef is temporarily used because the build isn't clean
regarding -Wundef warnings. The idea is that once the remaining
-Wundef warnings have been cleaned up (in at least one configuration),
-Wno-error=undef will be removed.
I get a clean build and test on x86_64 (GCC 4.9 branch) with this
patch. The expectation is that this may well break the build for some
other configurations, and people seeing such breakage should make
appropriate fixes to fix or suppress the warnings for their
configurations. In some cases that may involve using pragmas as the
right fix (I think that will be right for the -Wno-inline issue for
MIPS I referred to in
<https://sourceware.org/ml/libc-alpha/2012-11/msg00798.html>, for
example), in some cases -Wno-error in sysdeps makefiles (__restore_rt
in MIPS sigaction, for example), in some cases substantive fixes for
the warnings.
Note that if, with a view to listing all the warnings then fixing them
all, you just look for "warning:" in output from building and testing
with --disable-werror, you'll see lots of warnings from the linker
about functions such as tmpnam. Those warnings can be ignored - only
compiler warnings are relevant to -Werror, not linker warnings.
* configure.ac (--disable-werror): New configure option.
(enable_werror): New AC_SUBST.
* configure: Regenerated.
* config.make.in (enable-werror): New variable.
* Makeconfig [$(enable-werror) = yes] (+gccwarn): Add -Werror
-Wno-error=undef.
(+gccwarn-c): Do not use -Werror=implicit-function-declaration.
* manual/install.texi (Configuring and compiling): Document
--disable-werror.
* INSTALL: Regenerated.
* debug/Makefile (CFLAGS-tst-chk1.c): Add -Wno-error.
(CFLAGS-tst-chk2.c): Likewise.
(CFLAGS-tst-chk3.c): Likewise.
(CFLAGS-tst-chk4.cc): Likewise.
(CFLAGS-tst-chk5.cc): Likewise.
(CFLAGS-tst-chk6.cc): Likewise.
(CFLAGS-tst-lfschk1.c): Likewise.
(CFLAGS-tst-lfschk2.c): Likewise.
(CFLAGS-tst-lfschk3.c): Likewise.
(CFLAGS-tst-lfschk4.cc): Likewise.
(CFLAGS-tst-lfschk5.cc): Likewise.
(CFLAGS-tst-lfschk6.cc): Likewise.
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tst-printfsz.c.
This patch uses diagnostic control pragmas to disable warnings in
stdio-common/tst-printfsz.c for use of the deprecated
register_printf_function. Because this test is testing printf_size
and printf_size_info, and the latter has the interface expected for
register_printf_function instead of the newer
register_printf_specifier, it seems correct for this test to use the
deprecated interface (wrapping printf_size_info in some way to use
register_printf_specifier would seem an excessive change to what's
tested).
Tested for x86_64.
* stdio-common/tst-printfsz.c: Include <libc-internal.h>.
(main): Disable -Wdeprecated-declarations around calls to
register_printf_function.
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This patch uses diagnostic control pragmas to disable some
division-by-zero warnings in stdio-common/tst-unlockedio.c. This is
another test where disabling warnings using diagnostic pragmas seems
appropriate (the warnings are not wildly inappropriate for what the
test deliberately does; the deliberate use of unusual arguments to the
macros being tested means that changing the arguments in a way that
avoids the warning would also unduly perturb what is being tested).
Tested for x86_64.
* stdio-common/tst-unlockedio.c: Include <libc-internal.h>.
(do_test): Disable -Wdiv-by-zero around some calls to
fwrite_unlocked and fread_unlocked.
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In <https://sourceware.org/ml/libc-alpha/2014-11/msg00326.html>,
Roland requested internal macros for use of "#pragma GCC diagnostic".
This patch adds such macros and uses them to disable -Wformat warnings
for some code testing GNU scanf %as where GCC expects C99 scanf %a
(several other stdio tests currently use -Wno-format to disable
warnings). Limitations in GCC's diagnostic pragmas require separate
macros before and after the code generating the warnings, rather than
a single macro taking that code as an argument.
The macros are named DIAG_*_NEEDS_COMMENT to emphasise to reviewers
the need for a comment accompanying any use of them (such comments may
however just appear once for several uses of the macros for the same
issue in the same file). I put a GCC version in the arguments to
DIAG_IGNORE_NEEDS_COMMENT, as that seems something useful to grep for
when obsoleting support for an old GCC version and needing to decide
if warning-disabling code is still relevant.
These macros should be usable for replacing existing -Wno-* use in
makefiles (as also suggested by Roland), though I have no plans to
work on that (only on use of the macros in cases where warnings are
currently present that need disabling to use -Werror).
Tested for x86_64.
* include/libc-internal.h (DIAG_PUSH_NEEDS_COMMENT): New macro.
(DIAG_POP_NEEDS_COMMENT): Likewise.
(_DIAG_STR1): Likewise.
(_DIAG_STR): Likewise.
(DIAG_IGNORE_NEEDS_COMMENT): Likewise.
* stdio-common/bug21.c: Include <libc-internal.h>.
(do_test): Disable -Wformat around call to sscanf.
* stdio-common/scanf14.c: Include <libc-internal.h>.
(main): Disable -Wformat around some calls to scanf functions.
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This patch fixes a stack allocated variable to force it to have wchar_t
alignment.
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Some pthreads functions use getrlimit and gettimeofday, but these
functions are XSI, not base POSIX; this is a namespace issue for
dynamic linking as well as static linking. This patch makes them use
__getrlimit and __gettimeofday instead - the former needed to be newly
exported from libc.so at GLIBC_PRIVATE (and so now needs
libc_hidden_proto / libc_hidden_def), the latter was already exported.
Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by the patch).
[BZ #17682]
* resource/Versions (libc): Add __getrlimit at GLIBC_PRIVATE.
* resource/getrlimit.c (__getrlimit): Use libc_hidden_def.
* sysdeps/mach/hurd/getrlimit.c (__getrlimit): Likewise.
* include/sys/resource.h (__getrlimit): Use libc_hidden_proto.
* nptl/nptl-init.c (__pthread_initialize_minimal_internal): Use
__getrlimit instead of getrlimit.
* nptl/pthread_cond_timedwait.c (__pthread_cond_timedwait): Use
__gettimeofday instead of gettimeofday.
* nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
Likewise.
* nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
Likewise.
* sysdeps/pthread/aio_misc.c (handle_fildes_io): Likewise.
* conform/Makefile (test-xfail-POSIX2008/aio.h/linknamespace):
Remove variable.
(test-xfail-POSIX2008/pthread.h/linknamespace): Likewise.
(test-xfail-POSIX2008/time.h/linknamespace): Likewise.
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On 'do_ftell_test' the code:
365 if (test_modes[i].fd_mode != O_WRONLY)
366 {
367 char tmpbuf[data_len];
368
369 rewind (fp);
370
371 while (fgets_func (tmpbuf, sizeof (tmpbuf), fp) && !feof (fp));
The 'data_len' is calculated with wsclen and allocated as 'char'. The
subsequent fgetws will then try to write at most 'data_len' wchar_t
in a buffer with just data_len 'char'. This patch fixes it by
allocating the tmpbuf using 'wchar_t' * data_len bytes.
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Some linknamespace tests were failing because of references to
h_errno. References to this symbol should be allowed for XPG4, UNIX98
and XOPEN2K; this patch adds it to the list of allowed data symbols
for those standards. (h_errno was removed in the 2008 edition of
POSIX, so POSIX2008 and XOPEN2K8 references to it are genuine bugs;
fortunately it's not a public data symbol - __h_errno_location is
public, TLS h_errno is GLIBC_PRIVATE - so the symbol can simply be
renamed to __h_errno to fix those bugs without the ABI complications
normally associated with namespace issues for data symbols.)
Tested for x86_64.
* conform/list-header-symbols.pl (%extra_syms): Add h_errno for
XPG4, UNIX98 and XOPEN2K.
* conform/Makefile (test-xfail-XOPEN2K/grp.h/linknamespace):
Remove variable.
(test-xfail-XOPEN2K/pwd.h/linknamespace): Likewise.
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Don't use K&R style for function definitions.
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POSIX allows applications to switch file handles when a read results
in an end of file. Unset the cached offset at this point so that it
is queried again.
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The test case fails to truncate the file when a file is intended to be
opened in w or w+ mode. Add O_TRUNC to fix this. The test still
succeeds with this change.
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Currently we seek to end of file if there are unflushed writes or the
stream is in write mode, to get the current offset for writing in
append mode, which is the end of file. The latter case (i.e. stream
is in write mode, but no unflushed writes) is unnecessary since it
will only happen when the stream has just been flushed, in which case
the recorded offset ought to be reliable.
Removing that case lets ftell give the correct offset when it follows
an ftruncate. The latter truncates the file, but does not change the
file position, due to which it is permissible to call ftell without an
intervening fseek call.
Tested on x86_64 to verify that the added test case fails without the
patch and succeeds with it, and that there are no additional
regressions due to it.
[BZ #17647]
* libio/fileops.c (do_ftell): Seek only when there are
unflushed writes.
* libio/wfileops.c (do_ftell_wide): Likewise.
* libio/tst-ftell-active-handler.c (do_ftruncate_test): New
test case.
(do_one_test): Call it.
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Some linknamespace tests were failing because of references to
getdate_err. References to this symbol should be allowed for XPG4 and
later XSI standards; it was missing from the whitelist of data
symbols. This patch adds it to that list.
Tested for x86_64.
* conform/list-header-symbols.pl (%extra_syms): Add getdate_err
for XPG4, UNIX98, XOPEN2K and XOPEN2K8.
* conform/Makefile (test-xfail-XOPEN2K/pthread.h/linknamespace):
Remove variable.
(test-xfail-XOPEN2K/time.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/pthread.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/time.h/linknamespace): Likewise.
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It seems two of the XFAILed linknamespace tests were completely fixed
by some of my recent namespace fixes in combination (although not by
any individual one of those fixes relative to the sources used for
testing each patch, or that individual fix would also have removed the
XFAIL in question). This patch removes those XFAILs that are no
longer needed.
Tested for x86_64.
* conform/Makefile (test-xfail-XOPEN2K/aio.h/linknamespace):
Remove variable.
(test-xfail-XOPEN2K8/aio.h/linknamespace): Likewise.
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Various objects in glibc bring in ifaddrs.o (via references to
__netlink_*) and thereby getifaddrs and freeifaddrs, which are not
part of any standard supported by glibc. These should be weak aliases
of __getifaddrs and __freeifaddrs; this patch makes them so.
(The path by which these functions are brought in is Linux-specific,
but it seems less confusing to make all versions of these functions
weak aliases rather than only the Linux-specific versions that
definitely need it.)
Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by this patch).
[BZ #17668]
* inet/ifaddrs.c (getifaddrs): Rename to __getifaddrs and define
as weak alias of __getifaddrs. Use libc_hidden_weak.
(freeifaddrs): Rename to __freeifaddrs and define as weak alias of
__freeifaddrs. Use libc_hidden_weak.
* sysdeps/gnu/ifaddrs.c (getifaddrs): Rename to __getifaddrs and
define as weak alias of __getifaddrs. Use libc_hidden_weak.
(freeifaddrs): Rename to __freeifaddrs and define as weak alias of
__freeifaddrs. Use libc_hidden_weak.
* sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs): Rename to
__getifaddrs and define as weak alias of __getifaddrs. Use
libc_hidden_weak.
(freeifaddrs): Rename to __freeifaddrs and define as weak alias of
__freeifaddrs. Use libc_hidden_weak.
* conform/Makefile (test-xfail-XOPEN2K/net/if.h/linknamespace):
Remove variable.
(test-xfail-POSIX2008/net/if.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/net/if.h/linknamespace): Likewise.
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