sys/stat.h declares fchmod if __USE_POSIX (i.e. POSIX.1:1990). But it
was actually added in 1993 and also in XPG4. This patch changes the
conditions to the correct __USE_POSIX199309 || __USE_XOPEN_EXTENDED.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
[BZ #20073]
* io/sys/stat.h (fchmod): Declare for
[__USE_POSIX199309 || __USE_XOPEN_EXTENDED], not [__USE_POSIX].
* conform/Makefile (test-xfail-XPG3/sys/stat.h/conform): Remove
variable.
This patch fixes various conformtest sys/stat.h expectations that were
incorrect for XPG3 (not based on a full review, so not necessarily an
exhaustive set of such corrections). Most of these corrections fix
spurious failures shown in testing (but that for fchmod introduces a
correct failure, as that function is wrongly declared for XPG3, so
this doesn't eliminate any XFAILs).
Tested for x86_64 and x86.
* conform/data/sys/stat.h-data [XPG3] (S_IFLNK): Do not expect.
[XPG3] (S_IFSOCK): Likewise.
[XPG3] (S_ISVTX): Likewise.
[XPG3] (S_ISLNK): Likewise.
[XPG3] (S_ISSOCK): Likewise.
[XPG3] (fchmod): Likewise.
[XPG3] (lstat): Likewise.
[XPG3] (mknod): Likewise.
The conformtest expectations expect the struct stat fields st_blksize
and st_blocks to be of types blksize_t and blkcnt_t. But XPG4 does
not have those types, using long instead, and XPG3 does not have these
fields at all. This patch adjusts the expectations for those
standards, XFAILing them for XPG4 to allow for systems where the
typedefs don't correspond to long.
Tested for x86_64 and x86.
* conform/data/sys/stat.h-data (st_blksize): Do not expect for
[XPG3]. Expect type long and XFAIL for [XPG4].
(st_blocks): Likewise.
For UNIX98 (only), unistd.h should declare pthread_atfork, but that
declaration is missing. This patch adds it.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #20044]
* posix/unistd.h [__USE_UNIX98 && !__USE_XOPEN2K]
(pthread_atfork): New prototype.
* conform/Makefile (test-xfail-UNIX98/unistd.h/conform): Remove
variable.
The conformtest tests for sys/types.h for XPG3 and XPG4 fail because
of missing blksize_t. This is a bug in the expectations; that type is
not part of those standards. This patch stops the tests from
expecting it, and some other types that also are not part of XPG3 and
XPG4.
Tested for x86_64 and x86.
* conform/data/sys/types.h-data (blkcnt_t): Do not expect for
[XPG3 || XPG4].
(blksize_t): Likewise.
(clockid_t): Likewise.
* conform/Makefile (test-xfail-XPG3/sys/types.h/conform): Remove
variable.
(test-xfail-XPG4/sys/types.h/conform): Likewise.
For UNIX98 and older standards, sys/time.h should not define struct
timespec, but does so via the inclusion of sys/select.h (which is a
new header in the 2001 edition of POSIX, and defines struct timespec
because of the declaration of pselect, a new function in the 2001
edition of POSIX). In turn, this affects some other headers that
themselves include sys/time.h.
This patch fixes this by conditioning the __need_timespec definition
in sys/select.h on __USE_XOPEN2K, the same condition used there for
the declaration of pselect (this has no effect on direct uses of
sys/select.h with feature test macros for any standard that includes
that header, since such standards result in __USE_XOPEN2K being
defined).
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #20041]
* misc/sys/select.h (__need_timespec): Only define if
[__USE_XOPEN2K].
* conform/Makefile (test-xfail-XPG4/sys/time.h/conform): Remove
variable.
(test-xfail-XPG4/utmpx.h/conform): Likewise.
(test-xfail-UNIX98/sys/time.h/conform): Likewise.
(test-xfail-UNIX98/utmpx.h/conform): Likewise.
fcntl.h defines struct timespec if __USE_XOPEN || __USE_XOPEN2K8. But
(a) the subsequent bits/stat.h include only needs it if __USE_XOPEN2K8
and (b) older standards did not allow struct timespec here. (It's
allowed for newer standards by virtue of the permission to include
symbols from sys/stat.h. But sys/stat.h is only required to provide
struct timespec from the 2008 edition of POSIX onwards, and permitted
by the 2004 TC to the 2001 edition in anticipation of the addition of
nanosecond timestamp support to struct stat in the 2008 edition.)
This patch limits the timespec definition to the __USE_XOPEN2K8 case,
that being the only case where it is actually needed for the
<bits/stat.h> include.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #20023]
* io/fcntl.h [__USE_XOPEN && !__USE_XOPEN2K8]: Do not include
<time.h>.
* conform/Makefile (test-xfail-UNIX98/fcntl.h/conform): Remove
variable.
(test-xfail-XOPEN2K/fcntl.h/conform): Likewise.
stdio.h declares flockfile, ftrylockfile, funlockfile, getc_unlocked,
getchar_unlocked, putc_unlocked and putchar_unlocked if __USE_POSIX,
with comments "These are defined in POSIX.1:1996.". But __USE_POSIX
is actually POSIX.1:1990, and these functions should not be declared
for 1990 / 1992 / 1993 POSIX, XPG3 or XPG4. This patch fixes stdio.h
to use __USE_POSIX199506 instead for those conditionals, as that is
the correct conditional for the version of POSIX that introduced
threads, and with threads those functions.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
[BZ #20014]
* libio/stdio.h (getc_unlocked): Declare if [__USE_POSIX199506],
not [__USE_POSIX].
(getchar_unlocked): Likewise.
(putc_unlocked): Likewise.
(putchar_unlocked): Likewise.
(flockfile): Likewise.
(ftrylockfile): Likewise.
(funlockfile): Likewise.
* conform/Makefile (test-xfail-XPG3/stdio.h/conform): Remove
variable.
(test-xfail-XPG4/stdio.h/conform): Likewise.
The conformtest expectations for langinfo.h fail to include the YESSTR
and NOSTR constants that were present in UNIX98 and earlier XPG
standards. This patch adds those expectations, so fixing three
XFAILs.
Tested for x86_64 and x86.
* conform/data/langinfo.h-data [XPG3 || XPG4 || UNIX98] (YESSTR):
Expect constant.
[XPG3 || XPG4 || UNIX98] (NOSTR): Likewise.
* conform/Makefile (test-xfail-XPG3/langinfo.h/conform): Remove
variable.
(test-xfail-XPG4/langinfo.h/conform): Likewise.
(test-xfail-UNIX98/langinfo.h/conform): Likewise.
Similar to my previous fix for XOPEN2K
<https://sourceware.org/ml/libc-alpha/2016-04/msg00631.html>, now that
bugs in the conformtest expectations for stdio.h for UNIX98 have been
corrected, that case too fails because fseeko and ftello are now
correctly expected, but off_t is not defined. As in that fix, it
seems appropriate to define off_t in stdio.h for this standard as
well, and this patch does so.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* libio/stdio.h (off_t): Also define if [__USE_UNIX98].
[__USE_LARGEFILE64] (off64_t): Likewise.
* conform/Makefile (test-xfail-UNIX98/stdio.h/conform): Remove
variable.
The conform/ test of stdio.h wrongly does not expect fdopen for XPG3
and XPG4. fdopen is in those standards; this patch corrects the
expectations.
Tested for x86_64 and x86.
* conform/data/stdio.h-data (fdopen): Expect also for
[XPG3 || XPG4].
The conform/ test of stdio.h for UNIX98 fails with surious namespace
errors for functions that are correctly declared for that standard.
This patch fixes the expectations to expect those functions also for
UNIX98. (This does not by itself fix the XFAIL of that test, and is
not based a full review of the header expectations so there could
still be other bugs in the expectations for this header for UNIX98.)
Tested for x86_64 and x86.
* conform/data/stdio.h-data (flockfile): Also expect for [UNIX98].
(fseeko): Likewise.
(ftello): Likewise.
(ftrylockfile): Likewise.
(funlockfile): Likewise.
(getc_unlocked): Likewise.
(getchar_unlocked): Likewise.
(putc_unlocked): Likewise.
(putchar_unlocked): Likewise.
The conformtest expectations for signal.h have various declarations
that are expected for POSIX (1996) and all later standards, except,
wrongly, for XOPEN2K. This shows up as failures of tests for two
other headers, which are allowed to make visible symbols from
signal.h, because of an incorrect namespace failure for sigval
(required in signal.h in XOPEN2K, so should be allowed for those other
headers); signal.h tests for various standards fail anyway because of
other problems in the header. This patch fixes the incorrect
expectations and removes the two XFAILs that this fixes.
Tested for x86_64 and x86.
* conform/data/signal.h-data (union sigval): Expect also if
[XOPEN2K].
(struct sigevent): Likewise.
(SIGEV_NONE): Likewise.
(SIGEV_SIGNAL): Likewise.
(SIGEV_THREAD): Likewise.
(SIGRTMIN): Likewise.
(SIGRTMAX): Likewise.
* conform/Makefile (test-xfail-XOPEN2K/aio.h/conform): Remove
variable.
(test-xfail-XOPEN2K/mqueue.h/conform): Likewise.
langinfo.h declares nl_langinfo_l if __USE_XOPEN2K. But this function
was new in the 2008 edition of POSIX. This patch fixes the condition
accordingly.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
[BZ #19996]
* locale/langinfo.h (nl_langinfo_l): Declare if [__USE_XOPEN2K8],
not [__USE_XOPEN2K].
* conform/Makefile (test-xfail-XOPEN2K/langinfo.h/conform): Remove
variable.
The conform/ test expectations for stdarg.h were wrongly missing an
expectation of va_copy for XOPEN2K (based on C99, so including that
macro). This patch fixes this.
Tested for x86_64 and x86.
* conform/data/stdarg.h-data [XOPEN2K] (va_copy): Require macro.
* conform/Makefile (test-xfail-XOPEN2K/stdarg.h/conform): Remove
variable.
The header conformance test for stdio.h for XOPEN2K fails because the
header does not define the off_t type, used in the expected
declarations for fseeko and ftello.
The absence of this type is not actually strictly a bug (hence no bug
report being filed in Bugzilla), since POSIX didn't require the type
to be declared in this header until the 2008 edition. However, the
glibc convention in such cases - where the type falls under the
general *_t POSIX reservation, and so it's OK to define it for all
POSIX versions - is to make the headers self-contained in this regard
even for the older POSIX versions not requiring the type to be defined
despite including other declarations depending on the type. Thus,
this patch adjusts the condition in the header and removes the XFAIL
(rather than adapting the expectation to work when the functions are
declared using __off_t without off_t being defined).
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
* libio/stdio.h (off_t): Define if [__USE_XOPEN2K], not
[__USE_XOPEN2K8].
[__USE_LARGEFILE64] (off64_t): Likewise.
* conform/Makefile (test-xfail-XOPEN2K/stdio.h/conform): Remove
variable.
stdio.h declares cuserid if __USE_XOPEN. But this was removed in the
2001 edition of POSIX.
The #endif comment "Use X/Open, but not issue 6." reflects the correct
logic, but does not correspond to the #ifdef. The use of a correct
libc-hacker. The online archives for libc-hacker in August 2000 are
broken, but the messages can be found in the qmail archives in
/sourceware1/qmail/lists-sourceware/libc-hacker/archive/26 if you have
shell access to sourceware.
The issue showed up in August 2000 because of a warning about a
non-prototype definition in sysdeps/posix/cuserid.c when there was no
previous prototype declaration. Since we've now eliminated
non-prototype function definitions, that issue does not apply. The
other points from that discussion were about whether it should be
included in _GNU_SOURCE; whether _GNU_SOURCE should include
"everything"; whether deprecated interfaces such as this should be
excluded from it; and whether, even given exclusion of deprecated
interfaces, it should apply for deprecations in a version of POSIX
that at that time had not been released.
This patch follows the more conservative approach to a fix of keeping
the interface in _GNU_SOURCE. That matches how L_cuserid is handled.
I think there is a strong case for eliminating this interface from
_GNU_SOURCE (but this may not automatically be the case for every
interface removed in newer POSIX versions), but then L_cuserid should
also be removed from _GNU_SOURCE (in stdio-common/stdio_lim.h.in) at
the same time.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
[BZ #19989]
* libio/stdio.h (cuserid): Do not declare if
[__USE_XOPEN2K && !__USE_GNU].
* conform/Makefile (test-xfail-XOPEN2K8/stdio.h/conform): Remove
variable.
bits/xopen_lim.h (included by limits.h if __USE_XOPEN) defines
NL_NMAX, but this constant was removed in the 2008 edition of POSIX so
should not be defined in that case. This patch duly disables that
define for __USE_XOPEN2K8. It remains enabled for __USE_GNU to avoid
affecting sysconf (_SC_NL_NMAX), the implementation of which uses
"#ifdef NL_NMAX".
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #19929]
* include/bits/xopen_lim.h (NL_NMAX): Do not define if
[__USE_XOPEN2K8 && !__USE_GNU].
* conform/Makefile (test-xfail-XOPEN2K8/limits.h/conform): Remove
variable.
bits/termios.h (various versions under sysdeps/unix/sysv/linux)
defines XCASE if defined __USE_MISC || defined __USE_XOPEN. This
macro was removed in the 2001 edition of POSIX, and is not otherwise
reserved, so should not be defined for 2001 and later versions of
POSIX. This patch fixes the conditions accordingly (leaving the macro
defined for __USE_MISC, so still in the default namespace).
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
[BZ #19925]
* sysdeps/unix/sysv/linux/alpha/bits/termios.h (XCASE): Do not
define if [!__USE_MISC && __USE_XOPEN2K].
* sysdeps/unix/sysv/linux/bits/termios.h (XCASE): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h (XCASE): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h (XCASE):
Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h (XCASE): Likewise.
* conform/Makefile (test-xfail-XOPEN2K/termios.h/conform): Remove
variable.
(test-xfail-XOPEN2K8/termios.h/conform): Likewise.
The lgamma (and likewise lgammaf, lgammal) function wrongly sets the
signgam variable even when building for strict ISO C conformance
(-std=c99 / -std=c11), although the user may define such a variable
and it's only in the implementation namespace for POSIX with XSI
extensions enabled.
Following discussions starting at
<https://sourceware.org/ml/libc-alpha/2013-04/msg00767.html> and
<https://sourceware.org/ml/libc-alpha/2015-10/msg00844.html>, it seems
that the safest approach for fixing this particular issue is for
signgam to become a weak alias for a newly exported symbol __signgam,
with the library functions only setting __signgam, at which point
static linker magic will preserve the alias for newly linked binaries
that refer to the library's signgam rather than defining their own,
while breaking the alias for programs that define their own signgam,
with new symbol versions for lgamma functions and with compat symbols
for existing binaries that set both signgam and __signgam.
This patch implements that approach for the fix. signgam is made into
a weak alias. The four symbols __signgam, lgamma, lgammaf, lgammal
get new symbol versions at version GLIBC_2.23, with the existing
versions of lgamma, lgammaf and lgammal becoming compat symbols.
When the compat versions are built, gamma, gammaf and gammal are
aliases for the compat versions (i.e. always set signgam); this is OK
as they are not ISO C functions, and avoids adding new symbol versions
for them unnecessarily. When the compat versions are not built
(i.e. for static linking and for future glibc ports), gamma, gammaf
and gammal are aliases for the new versions that set __signgam. The
ldbl-opt versions are updated accordingly.
The lgamma wrappers are adjusted so that the same source files,
included from different files with different definitions of
USE_AS_COMPAT, can build either the new versions or the compat
versions. Similar changes are made to the ia64 versions (untested).
Tests are added that the lgamma functions do not interfere with a user
variable called signgam for ISO C, with various choices for the size
of that variable, whether it is initialized, and for static and
dynamic linking. The conformtest whitelist entry is removed as well.
Tested for x86_64, x86, mips64 and powerpc, including looking at
objdump --dynamic-syms output to make sure the expected sets of
symbols were aliases. Also spot-tested that a binary built with old
glibc works properly (i.e. gets signgam set) when run with new glibc.
[BZ #15421]
* sysdeps/ieee754/s_signgam.c (signgam): Rename to __signgam,
initialize with 0 and define as weak alias of __signgam.
* include/math.h [!_ISOMAC] (__signgam): Declare.
* math/Makefile (libm-calls): Add w_lgamma_compat.
(tests): Add test-signgam-uchar, test-signgam-uchar-init,
test-signgam-uint, test-signgam-uint-init, test-signgam-ullong and
test-signgam-ullong-init.
(tests-static): Add test-signgam-uchar-static,
test-signgam-uchar-init-static, test-signgam-uint-static,
test-signgam-uint-init-static, test-signgam-ullong-static and
test-signgam-ullong-init-static.
(CFLAGS-test-signgam-uchar.c): New variable.
(CFLAGS-test-signgam-uchar-init.c): Likewise.
(CFLAGS-test-signgam-uchar-static.c): Likewise.
(CFLAGS-test-signgam-uchar-init-static.c): Likewise.
(CFLAGS-test-signgam-uint.c): Likewise.
(CFLAGS-test-signgam-uint-init.c): Likewise.
(CFLAGS-test-signgam-uint-static.c): Likewise.
(CFLAGS-test-signgam-uint-init-static.c): Likewise.
(CFLAGS-test-signgam-ullong.c): Likewise.
(CFLAGS-test-signgam-ullong-init.c): Likewise.
(CFLAGS-test-signgam-ullong-static.c): Likewise.
(CFLAGS-test-signgam-ullong-init-static.c): Likewise.
* math/Versions (libm): Add GLIBC_2.23.
* math/lgamma-compat.h: New file.
* math/test-signgam-main.c: Likewise.
* math/test-signgam-uchar-init-static.c: Likewise.
* math/test-signgam-uchar-init.c: Likewise.
* math/test-signgam-uchar-static.c: Likewise.
* math/test-signgam-uchar.c: Likewise.
* math/test-signgam-uint-init-static.c: Likewise.
* math/test-signgam-uint-init.c: Likewise.
* math/test-signgam-uint-static.c: Likewise.
* math/test-signgam-uint.c: Likewise.
* math/test-signgam-ullong-init-static.c: Likewise.
* math/test-signgam-ullong-init.c: Likewise.
* math/test-signgam-ullong-static.c: Likewise.
* math/test-signgam-ullong.c: Likewise.
* math/w_lgamma.c: Rename to w_lgamma_main.c and replace by
wrapper of w_lgamma_main.c.
* math/w_lgamma_compat.c: New file.
* math/w_lgamma_compatf.c: Likewise.
* math/w_lgamma_compatl.c: Likewise.
* math/w_lgamma_main.c: New file. Based on w_lgamma.c. Include
<lgamma-compat.h>. Condition contents on [BUILD_LGAMMA]. Support
defining compatibility symbols.
(__lgamma): Change to LGFUNC (__lgamma). Use CALL_LGAMMA.
* math/w_lgammaf.c: Rename to w_lgammaf_main.c and replace by
wrapper of w_lgammaf_main.c.
* math/w_lgammaf_main.c: New file. Based on w_lgammaf.c. Include
<lgamma-compat.h>. Condition contents on [BUILD_LGAMMA]. Support
defining compatibility symbols.
(__lgammaf): Change to LGFUNC (__lgammaf). Use CALL_LGAMMA.
* math/w_lgammal.c: Rename to w_lgammal_main.c and replace by
wrapper of w_lgammal_main.c.
* math/w_lgammal_main.c: New file. Based on w_lgammal.c. Include
<lgamma-compat.h>. Condition contents on [BUILD_LGAMMA]. Support
defining compatibility symbols.
(__lgammal): Change to LGFUNC (__lgammal). Use CALL_LGAMMA.
* sysdeps/ia64/fpu/lgamma-compat.h: New file.
* sysdeps/ia64/fpu/w_lgamma.c: Move to ....
* sysdeps/ia64/fpu/w_lgamma_main.c: ...here. Include
<lgamma-compat.h>.
(__ieee754_lgamma): Change to LGFUNC (lgamma). Use CALL_LGAMMA.
(__ieee754_gamma): Define as alias.
* sysdeps/ia64/fpu/w_lgammaf.c: Move to ....
* sysdeps/ia64/fpu/w_lgammaf_main.c: ...here. Include
<lgamma-compat.h>.
(__ieee754_lgammaf): Change to LGFUNC (lgammaf). Use CALL_LGAMMA.
(__ieee754_gammaf): Define as alias.
* sysdeps/ia64/fpu/w_lgammal.c: Move to ....
* sysdeps/ia64/fpu/w_lgammal_main.c: ...here. Include
<lgamma-compat.h>.
(__ieee754_lgammal): Change to LGFUNC (lgammal). Use CALL_LGAMMA.
(__ieee754_gammal): Define as alias.
* sysdeps/ieee754/ldbl-opt/w_lgamma.c: Move to ....
* sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c: ...here. Include
<math/w_lgamma_compat.c>.
[LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)] (__lgammal_dbl_compat):
Define as alias of __lgamma_compat and use in defining lgammal.
* sysdeps/ieee754/ldbl-opt/w_lgammal.c: Move to ....
* sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c: ...here. Include
<math/lgamma-compat.h> and <math/w_lgamma_compatl.c>.
(USE_AS_COMPAT): New macro.
(LGAMMA_OLD_VER): Undefine and redefine.
(lgammal): Do not define here.
(gammal): Only define here if [GAMMA_ALIAS].
* conform/linknamespace.pl (@whitelist): Remove signgam.
* sysdeps/nacl/libm.abilist: Update.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
Now that GCC 4.7 or later is required to build glibc, this patch
removes three conform/ test XFAILs that related to missing C11 support
in GCC 4.6.
Tested for x86_64 and x86 (conform/ tests).
* conform/Makefile (test-xfail-ISO11/complex.h/conform): Remove
variable.
(test-xfail-ISO11/stdalign.h/conform): Likewise.
(test-xfail-ISO11/stdnoreturn.h/conform): Likewise.
Now that GCC 4.7 or later is required to build glibc, this patch makes
the conformance tests use -std=c11 for C11 tests instead of -std=c1x
-D_ISOC11_SOURCE.
Tested for x86_64 and x86 (conform/ tests).
* conform/GlibcConform.pm ($CFLAGS{"ISO11"}): Use -std=c11 instead
of -std=c1x -D_ISOC11_SOURCE.
This patch makes linknamespace.pl require weak undefined symbols to be
within the standard namespace. (It remains the case that
linknamespace.pl does not look for definitions of such symbols or
require symbols used in those definitions to be within the standard
namespace.)
Tested for x86_64 and x86.
* conform/linknamespace.pl: Require weak undefined symbols to be
in the standard namespace.
(%strong_syms): Rename to %seen_syms.
(%strong_seen): Rename to %seen_where.
math.h incorrectly declares various functions for XSI POSIX 2001 and
2008 editions. gamma was removed in the 2001 edition but is still
declared, along with gammaf and gammal which were never standard
functions. isnan is still declared as a function, along with isnanf
and isnanl which were never standard functions, although in 2001 the
function was replaced by the type-generic macro. scalbf and scalbl
are declared although never standard, and scalb was removed in the
2008 edition but is still declared. The scalb type-generic macro in
tgmath.h shouldn't be present for any POSIX version, since POSIX never
had such a type-generic macro.
This patch disables all those declarations in the relevant cases (as a
minimal fix, it leaves them enabled for __USE_MISC). For the matter
of declaring scalb but not scalbf or scalbl for the 2001 edition, a
new macro __MATH_DECLARING_DOUBLE is added, defined by math.h around
includes of bits/mathcalls.h, for bits/mathcalls.h to use to test
which type's functions are being declared.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #18967]
* math/math.h (__MATH_DECLARING_DOUBLE): New macro. Define and
undefine around includes of <bits/mathcalls.h>.
* math/bits/mathcalls.h [!__USE_MISC && __USE_XOPEN2K] (isnan): Do
not declare function.
[!__USE_MISC && __USE_XOPEN2K] (gamma): Likewise.
[!__USE_MISC && (!__MATH_DECLARING_DOUBLE || __USE_XOPEN2K8)]
(scalb): Likewise.
* math/tgmath.h [!__USE_MISC && __USE_XOPEN_EXTENDED] (scalb): Do
not define macro.
* conform/Makefile (test-xfail-XOPEN2K/math.h/conform): Remove
variable.
(test-xfail-XOPEN2K/tgmath.h/conform): Likewise.
(test-xfail-XOPEN2K8/math.h/conform): Likewise.
(test-xfail-XOPEN2K8/tgmath.h/conform): Likewise.
glibc supports the deprecated matherr hook for math error reporting. The
conform tests take this into consideration and whitelist this symbol when
running linknamespace tests.
The ia64 libm code has long provided two additional hooks in this space:
matherrf (for floats)
matherrl (for long doubles)
Which causes the conform tests to fail with chains that all look like:
[initial] __atan2 ->
[libm.a(e_atan2.o)] __libm_error_support ->
[libm.a(libm_error.o)] matherrf
We can't (losslessly) redirect existing usage of these funcs to matherr
because the structure passed in is different -- matherr uses a struct with
doubles while matherrf/matherrl use floats and long doubles respectively.
Plus, this has been part of the exported ABI since glibc-2.2.3, so it
doesn't feel right to change it so late.
Until we get around to obsoleting matherr entirely, whitelist these two
additional ia64 symbols.
conformtest expected pselect for XOPEN2K and POSIX2008 (correctly),
but not for XOPEN2K8 (wrongly). This patch fixes the data to expect
it for XOPEN2K8 as well.
(As for all such fixes based on failures seen from the tests, there is
no guarantee that the data is fully correct for a particular standard
after the fix; headers and data may well have matching bugs. So far
I've only reviewed ISO, ISO99, ISO11 and POSIX data in detail, though
I hope eventually to review the others.)
Tested for x86_64 and x86.
* conform/data/sys/select.h-data [XOPEN2K8] (pselect): Expect.
* conform/Makefile (test-xfail-XOPEN2K8/sys/select.h/conform):
Remove variable.
(test-xfail-XOPEN2K8/sys/time.h/conform): Likewise.
(test-xfail-XOPEN2K8/utmpx.h/conform).
Various conformtest tests fail because of known issues, filed in
Bugzilla, that are hard to fix (requiring new features, kernel
cooperation or involving changing types in ways that may involve care
around padding when interfacing to the kernel). Such an issue has the
effect of making the whole test for the (standard, header) pair fail,
so hiding any other issues with that header for that standard
(possibly regressions or architecture-specific issues).
This patch adds a mechanism for individual conformtest test
expectations to start with xfail-, meaning that a failure of that
particular assertion does not cause the whole test to fail at the
makefile level and so failure at the makefile level can be used to
detect other issues that are likely to be easier to fix. This is
similar to the whitelisted symbols in the linknamespace tests, or the
marking of particular libm tests as allowing spurious or missing
exceptions, for example. The bugs filed in Bugzilla should still be
fixed, and the xfail- markers removed at that point, but xfail-
renders the tests more useful until that happens.
Note that there is no way to add such a marker for the assertion that
a header uses only symbols in the namespace of symbols it's meant to
use. I don't think there's any need for a way to xfail those
namespace tests other than xfailing the whole (standard, header) pair
at the makefile level, since they are generally straightforward to fix
(add appropriate conditionals on the problem definitions).
The xfails in this patch do not necessarily cover all cases of
hard-to-fix header bugs filed in Bugzilla that currently show up in
conformtest failures; there may be more yet to add for existing open
bugs.
Tested for x86_64 and x86.
* conform/conformtest.pl ($xerrors): New variable.
(note_error): New function.
(compiletest): New argument $xfail. Use not_error.
(runtest): Likewise.
(top level): Handle xfail- lines. Update calls to compiletest and
runtest. Handle xfail- and optional- in headers listed with
allow-header.
* conform/data/fcntl.h-data (O_TTY_INIT): Use xfail-.
(O_EXEC): Likewise.
(O_SEARCH): Likewise.
* conform/data/stropts.h-data (ioctl): Likewise.
* conform/data/sys/ipc.h-data (ipc_perm.mode): Likewise.
* conform/data/sys/sem.h-data (semid_ds.sem_nsems): Likewise.
* conform/data/sys/socket.h-data (msghdr.msg_iovlen): Likewise.
(msghdr.msg_controllen): Likewise.
(cmsghdr.cmsg_len): Likewise.
* conform/data/utmpx.h-data (utmpx.ut_tv): Likewise.
* conform/Makefile (test-xfail-XPG3/sys/ipc.h/conform): Remove
variable.
(test-xfail-XPG3/sys/sem.h/conform): Likewise.
(test-xfail-XPG4/stropts.h/conform): Likewise.
(test-xfail-XPG4/sys/ipc.h/conform): Likewise.
(test-xfail-XPG4/sys/sem.h/conform): Likewise.
(test-xfail-XPG4/sys/socket.h/conform): Likewise.
(test-xfail-UNIX98/stropts.h/conform): Likewise.
(test-xfail-UNIX98/sys/ipc.h/conform): Likewise.
(test-xfail-UNIX98/sys/sem.h/conform): Likewise.
(test-xfail-UNIX98/sys/socket.h/conform): Likewise.
(test-xfail-XOPEN2K/stropts.h/conform): Likewise.
(test-xfail-XOPEN2K/sys/ipc.h/conform): Likewise.
(test-xfail-XOPEN2K/sys/sem.h/conform): Likewise.
(test-xfail-XOPEN2K/sys/socket.h/conform): Likewise.
(test-xfail-XOPEN2K/utmpx.h/conform): Likewise.
(test-xfail-POSIX2008/fcntl.h/conform): Likewise.
(test-xfail-POSIX2008/stropts.h/conform): Likewise.
(test-xfail-XOPEN2K8/fcntl.h/conform): Likewise.
(test-xfail-XOPEN2K8/stropts.h/conform): Likewise.
(test-xfail-XOPEN2K8/sys/ipc.h/conform): Likewise.
(test-xfail-XOPEN2K8/sys/sem.h/conform): Likewise.
(test-xfail-XOPEN2K8/sys/socket.h/conform): Likewise.
Ten conformtest failures arise from the internal header
include/bits/ipc.h failing to condition internal declarations, outside
the public namespace of headers including bits/ipc.h, on [!_ISOMAC].
As discussed in
<https://sourceware.org/ml/libc-alpha/2015-06/msg00653.html>, the
internal declarations that are actually relevant are in ipc_priv.h and
so include/bits/ipc.h should not be needed at all; this patch removes
it. (Ten further conformtest failures for other headers including
bits/ipc.h remain because of other conformance issues in those
headers.)
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
* include/bits/ipc.h: Remove file.
* conform/Makefile (test-xfail-XPG3/sys/msg.h/conform): Remove
variable.
(test-xfail-XPG3/sys/shm.h/conform): Likewise.
(test-xfail-XPG4/sys/msg.h/conform): Likewise.
(test-xfail-XPG4/sys/shm.h/conform): Likewise.
(test-xfail-UNIX98/sys/msg.h/conform): Likewise.
(test-xfail-UNIX98/sys/shm.h/conform): Likewise.
(test-xfail-XOPEN2K/sys/msg.h/conform): Likewise.
(test-xfail-XOPEN2K/sys/shm.h/conform): Likewise.
(test-xfail-XOPEN2K8/sys/msg.h/conform): Likewise.
(test-xfail-XOPEN2K8/sys/shm.h/conform): Likewise.
sysdeps/unix/sysv/linux/bits/in.h (as included in netinet/in.h, and
via that in netdb.h and arpa/inet.h) defines a series of MCAST_*
macros, both under __USE_MISC and then again unconditionally. These
are not POSIX macros, nor in any of the namespaces listed in POSIX as
reserved for this header, so should not be defined unconditionally.
This patch duly removes the unconditional definitions, leaving the
ones conditional on __USE_MISC.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #18558]
* sysdeps/unix/sysv/linux/bits/in.h (MCAST_JOIN_GROUP): Remove
unconditional definition.
(MCAST_BLOCK_SOURCE): Likewise.
(MCAST_UNBLOCK_SOURCE): Likewise.
(MCAST_LEAVE_GROUP): Likewise.
(MCAST_JOIN_SOURCE_GROUP): Likewise.
(MCAST_LEAVE_SOURCE_GROUP): Likewise.
(MCAST_MSFILTER): Likewise.
* conform/Makefile (test-xfail-XOPEN2K/arpa/inet.h/conform):
Remove variable.
(test-xfail-XOPEN2K/netdb.h/conform): Likewise.
(test-xfail-XOPEN2K/netinet/in.h/conform): Likewise.
(test-xfail-XOPEN2K8/arpa/inet.h/conform): Likewise.
(test-xfail-XOPEN2K8/netdb.h/conform): Likewise.
(test-xfail-XOPEN2K8/netinet/in.h/conform): Likewise.
nice (XPG3) calls getpriority and setpriority (in XPG4 but not XPG3,
i.e. UX-shaded in XPG4). This patch fixes this by making those
functions into weak aliases of __* functions and calling the __*
versions as needed.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed shared libraries is unchanged by this patch).
This completes cleaning up the unsorted linknamespace test XFAILs.
[BZ #18553]
* resource/getpriority.c (getpriority): Rename to __getpriority
and define as weak alias of __getpriority.
* resource/setpriority.c (setpriority): Rename to __setpriority
and define as weak alias of __setpriority.
* sysdeps/mach/hurd/getpriority.c (getpriority): Rename to
__getpriority and define as weak alias of __getpriority.
* sysdeps/mach/hurd/setpriority.c (setpriority): Rename to
__setpriority and define as weak alias of __setpriority.
* sysdeps/unix/syscalls.list (getpriority): Use __getpriority as
strong name.
(setpriority): Use __setpriority as strong name.
* sysdeps/unix/sysv/linux/getpriority.c (getpriority): Rename to
__getpriority and define as weak alias of __getpriority.
* include/sys/resource.h (__getpriority): Declare. Use
libc_hidden_proto.
(__setpriority): Likewise.
(getpriority): Don't use libc_hidden_proto.
(setpriority): Likewise.
* sysdeps/posix/nice.c (nice): Call __getpriority instead of
getpriority. Call __setpriority instead of setpriority.
* conform/Makefile (test-xfail-XPG3/unistd.h/linknamespace):
Remove variable.
ttyslot (XPG4) calls the non-XPG4 functions endttyent, getttyent and
setttyent, which in turn bring in references to fgets_unlocked and
getttynam. This patch fixes this by making these functions into weak
aliases and calling the __* names as needed.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed stripped shared libraries is unchanged by the patch).
[BZ #18547]
* misc/getttyent.c (getttynam): Rename to __getttynam and define
as weak alias of __getttynam. Use prototype function definition.
Call __setttyent, __getttyent and __endttyent instead of
setttyent, getttyent and endttyent.
(getttyent): Rename to __getttyent and define as weak alias of
__getttyent. Call __setttyent instead of setttyent. Call
__fgets_unlocked instead of fgets_unlocked.
(setttyent): Rename to __setttyent and define as weak alias of
__setttyent.
(endttyent): Rename to __endttyent and define as weak alias of
__endttyent.
* include/ttyent.h (__getttyent): Declare. Use libc_hidden_proto.
(__setttyent): Likewise.
(__endttyent): Likewise.
(getttyent): Don't use libc_hidden_proto.
(setttyent): Likewise.
(endttyent): Likewise.
* misc/ttyslot.c (ttyslot): Call __setttyent, __getttyent and
__endttyent instead of setttyent, getttyent and endttyent.
* conform/Makefile (test-xfail-XPG4/unistd.h/linknamespace):
Remove variable.
mq_notify (in the 1996 edition of POSIX) brings in references to recv
and socket (not in POSIX until the 2001 edition). This patch fixes
this by using __recv and __socket, exporting them from libc at version
GLIBC_PRIVATE.
Tested for x86_64 and x86 (testsuite and comparison of installed
stripped shared libraries; PLT / dynamic symbol table changes render
the comparison not particularly useful for libc).
[BZ #18546]
* socket/recv.c (__recv): Use libc_hidden_def.
* socket/socket.c (__socket): Likewise.
* sysdeps/mach/hurd/recv.c (__recv): Likewise.
* sysdeps/mach/hurd/socket.c (__socket): Likewise.
* sysdeps/unix/sysv/linux/generic/recv.c (__recv): Likewise.
* sysdeps/unix/sysv/linux/recv.c (__recv): Use libc_hidden_weak.
* sysdeps/unix/sysv/linux/socket.c (__socket): Use
libc_hidden_def.
* sysdeps/unix/sysv/linux/x86_64/recv.c (__recv): Use
libc_hidden_weak.
* include/sys/socket.h (__socket): Do not use attribute_hidden.
Use libc_hidden_proto.
(__recv): Likewise.
* socket/Versions (libc): Export __recv and __socket at version
GLIBC_PRIVATE.
* sysdeps/unix/sysv/linux/mq_notify.c (helper_thread): Call __recv
instead of recv.
(init_mq_netlink): Call __socket instead of socket.
* conform/Makefile (test-xfail-POSIX/mqueue.h/linknamespace):
Remove variable.
mq_receive calls mq_timedreceive, and mq_send calls mq_timedsend. But
mq_receive and mq_send were in POSIX by 1996, while mq_timed* were
added in the 2001 edition of POSIX. This patch fixes this by making
mq_timed* into weak aliases for __mq_timed* and calling the
__mq_timed* names.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed shared libraries is unchanged by the patch).
[BZ #18545]
* rt/mq_timedreceive.c (mq_timedreceive): Rename to
__mq_timedreceive and define as alias of __mq_timedreceive. Use
hidden_weak.
* rt/mq_timedsend.c (mq_timedsend): Rename to __mq_timedsend and
define as alias of __mq_timedsend. Use hidden_weak.
* sysdeps/unix/sysv/linux/syscalls.list (mq_timedsend): Use
__mq_timedsend as strong name.
(mq_timedreceive): Use __mq_timedreceive as strong name.
* include/mqueue.h (__mq_timedsend): Declare. Use hidden_proto.
(__mq_timedreceive): Likewise.
* sysdeps/unix/sysv/linux/mq_receive.c (mq_receive): Call
__mq_timedreceive instead of mq_timedreceive.
* sysdeps/unix/sysv/linux/mq_send.c (mq_send): Call __mq_timedsend
instead of mq_timedsend.
* conform/Makefile (test-xfail-UNIX98/mqueue.h/linknamespace):
Remove variable.
swscanf (added in C90 Amendment 1, present in UNIX98) calls vswscanf
(added in C99, not in C90 Amendment 1 or UNIX98). This patch fixes
this by using __vswscanf instead and making vswscanf into a weak
alias.
(I intend to add conform/ test support for C90 Amendment 1 - and
various other standard versions supported by glibc but not yet by
conform/ tests - at some point, once the results for currently tested
standards are cleaner.)
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #18542]
* libio/iovswscanf.c (__vswscanf): Use libc_hidden_def.
(vswscanf): Use ldbl_weak_alias instead of ldbl_strong_alias
* include/wchar.h (__vswscanf): Declare. Use libc_hidden_proto.
* libio/swscanf.c (__swscanf): Call __vswscanf instead of
vswscanf.
* conform/Makefile (test-xfail-UNIX98/wchar.h/linknamespace):
Remove variable.
The getpass function (XPG3 / XPG4 / UNIX98) calls fflush_unlocked (not
in any of those standards). This patch fixes this by making
fflush_unlocked into a weak alias for __fflush_unlocked and calling
__fflush_unlocked from getpass.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed stripped shared libraries is unchanged by the patch).
[BZ #18540]
* libio/iofflush.c [!_IO_MTSAFE_IO] (__fflush_unlocked): Define as
strong alias of _IO_fflush. Use libc_hidden_def.
* libio/iofflush_u.c (fflush_unlocked): Rename to
__fflush_unlocked and define as weak alias of __fflush_unlocked.
Use libc_hidden_weak.
* include/stdio.h (__fflush_unlocked): Declare. Use
libc_hidden_proto.
* misc/getpass.c (getpass): Call __fflush_unlocked instead of
fflush_unlocked.
* conform/Makefile (test-xfail-UNIX98/unistd.h/linknamespace):
Remove variable.
Use of fmtmsg (XSI POSIX) brings in addseverity (non-POSIX). This
patch fixes this by making addseverity into a weak alias for
__addseverity.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed shared libraries is unchanged by the patch).
[BZ #18539]
* stdlib/fmtmsg.c (addseverity): Rename to __addseverity and
define as weak alias of __addseverity.
* conform/Makefile (test-xfail-XPG4/fmtmsg.h/linknamespace):
Remove variable.
(test-xfail-UNIX98/fmtmsg.h/linknamespace): Likewise.
(test-xfail-XOPEN2K/fmtmsg.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/fmtmsg.h/linknamespace): Likewise.
The sem_* functions bring in references to tdelete, tfind, tsearch and
twalk. But the t* functions are XSI-shaded, while sem_* aren't. This
patch fixes this by using __t* instead, exporting those functions from
libc at version GLIBC_PRIVATE (since sem_* are in libpthread) and
using libc_hidden_* for the benefit of calls within libc.
Tested for x86_64 and x86 (testsuite, and comparison of disassembly of
installed stripped shared libraries). libpthread gets changes from
PLT reordering; addresses in libc change because of PLT / dynamic
symbol table changes.
[BZ #18536]
* misc/tsearch.c (__tsearch): Use libc_hidden_def.
(__tfind): Likewise.
(__tdelete): Likewise.
(__twalk): Likewise.
* misc/Versions (libc): Add __tdelete, __tfind, __tsearch and
__twalk to GLIBC_PRIVATE.
* include/search.h (__tsearch): Use libc_hidden_proto.
(__tfind): Likewise.
(__tdelete): Likewise.
(__twalk): Likewise.
* nptl/sem_close.c (sem_close): Call __twalk instead of twalk.
Call __tdelete instead of tdelete.
* nptl/sem_open.c (check_add_mapping): Call __tfind instead of
tfind. Call __tsearch instead of tsearch.
* sysdeps/sparc/sparc32/sem_open.c (check_add_mapping): Likewise.
* conform/Makefile (test-xfail-POSIX/semaphore.h/linknamespace):
Remove variable.
(test-xfail-POSIX2008/semaphore.h/linknamespace): Likewise.
syslog functions bring in references to dprintf, which wasn't added to
POSIX until the 2008 edition and so isn't in various standards
containing the syslog functions. This patch fixes this by making
dprintf into a weak alias of __dprintf and using __dprintf as
appropriate.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #18534]
* stdio-common/dprintf.c (__dprintf): Use libc_hidden_def.
(dprintf): Define as a weak alias of __dprintf, not a strong
alias.
* include/stdio.h (__dprintf): Declare. Use libc_hidden_proto.
* misc/syslog.c (__vsyslog_chk): Call __dprintf instead of
dprintf.
* conform/Makefile (test-xfail-XPG4/syslog.h/linknamespace):
Remove variable.
(test-xfail-UNIX98/syslog.h/linknamespace): Likewise.
(test-xfail-XOPEN2K/syslog.h/linknamespace): Likewise.
syslog functions (in POSIX) bring in the strong symbol vsyslog (not in
POSIX). This patch fixes this by changing this symbol from a strong
alias to a weak alias.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch). (vsyslog becomes weak
in the static libraries, which is what's needed; the particular macro
sequence in use leaves it as strong in the shared libraries, hence
those libraries being completely unchanged, but it doesn't generally
matter whether symbols exported from the shared libraries are weak or
strong.)
[BZ #18533]
* misc/syslog.c (vsyslog): Define as a weak alias of __vsyslog,
not a strong alias.
* conform/Makefile (test-xfail-XOPEN2K8/syslog.h/linknamespace):
Remove variable.
gethostbyaddr brings in references to in6addr_any and thereby
in6addr_loopback, which aren't in all the standards containing
gethostbyaddr (gethostbyaddr is in XPG4 and UNIX98, in6addr_any and
in6addr_loopback are new in POSIX.1:2001). This patch fixes this by
making those symbols into weak aliases (safe in this case, unlike for
most data symbols, because these data symbols are const).
Tested for x86_64 and x86 (testsuite, and comparison of disassembly of
installed stripped shared libraries). Disassembly is unchanged for
x86_64; for x86, I see some changes of stack offsets, but no other
code generation changes or code size differences.
[BZ #18532]
* inet/in6_addr.c (in6addr_any): Rename to __in6addr_any and
define as weak alias of __in6addr_any. Use libc_hidden_data_weak.
(in6addr_loopback): Rename to __in6addr_loopback and define as
weak alias of __in6addr_loopback. Use libc_hidden_data_weak.
* include/netinet/in.h (__in6addr_loopback): Declare. Use
libc_hidden_proto.
(__in6addr_any): Likewise.
* inet/gethstbyad_r.c (PREPROCESS): Use __in6addr_any instead of
in6addr_any.
* conform/Makefile (test-xfail-XPG4/netdb.h/linknamespace): Remove
variable.
(test-xfail-UNIX98/netdb.h/linknamespace): Likewise.
Some linknamespace test failures turned out to be because the
variables in6addr_any and in6addr_loopback weren't listed in the lists
of extra reserved symbols for the relevant standards (only functions
are handled automatically through -aux-info, data symbols need listing
manually in list-header-symbols.pl). This patch duly adds those
symbols to those lists (there are still failures for older standards
because of references to those symbols being brought in for standards
that didn't reserve them: bug 18532, to be fixed separately).
Tested for x86_64.
* conform/list-header-symbols.pl (%extra_syms): Add in6addr_any
and in6addr_loopback for XOPEN2K, XOPEN2K8 and POSIX2008.
* conform/Makefile (test-xfail-XOPEN2K/netdb.h/linknamespace):
Remove variable.
(test-xfail-POSIX2008/netdb.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/netdb.h/linknamespace): Likewise.
netdb.h declares interfaces such as getaddrinfo if __USE_POSIX,
i.e. POSIX.1:1990 or later. However, these interfaces were new in the
2001 edition of POSIX, although the header was in XPG4 and UNIX98, so
they should not be declared for XPG4 or UNIX98. (This produces
spurious linknamespace test failures, although there are other
failures for this header as well for the same standards so this patch
doesn't remove any XFAILs.) This patch corrects the condition, and
the conform/ test expectations which were similarly wrong.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #18529]
* resolv/netdb.h [__USE_POSIX]: Change condition to
[__USE_XOPEN2K].
* conform/data/netdb.h-data [XPG4 || UNIX98] (struct addrinfo): Do
not expect.
[XPG4 || UNIX98] (AI_PASSIVE): Likewise.
[XPG4 || UNIX98] (AI_CANONNAME): Likewise.
[XPG4 || UNIX98] (AI_NUMERICHOST): Likewise.
[XPG4 || UNIX98] (AI_V4MAPPED): Likewise.
[XPG4 || UNIX98] (AI_ALL): Likewise.
[XPG4 || UNIX98] (AI_ADDRCONFIG): Likewise.
[XPG4 || UNIX98] (AI_NUMERICSERV): Likewise.
[XPG4 || UNIX98] (NI_NOFQDN): Likewise.
[XPG4 || UNIX98] (NI_NUMERICHOST): Likewise.
[XPG4 || UNIX98] (NI_NAMEREQD): Likewise.
[XPG4 || UNIX98] (NI_NUMERICSERV): Likewise.
[XPG4 || UNIX98] (NI_DGRAM): Likewise.
[XPG4 || UNIX98] (EAI_AGAIN): Likewise.
[XPG4 || UNIX98] (EAI_BADFLAGS): Likewise.
[XPG4 || UNIX98] (EAI_FAIL): Likewise.
[XPG4 || UNIX98] (EAI_FAMILY): Likewise.
[XPG4 || UNIX98] (EAI_MEMORY): Likewise.
[XPG4 || UNIX98] (EAI_NONAME): Likewise.
[XPG4 || UNIX98] (EAI_SERVICE): Likewise.
[XPG4 || UNIX98] (EAI_SOCKTYPE): Likewise.
[XPG4 || UNIX98] (EAI_SYSTEM): Likewise.
[XPG4 || UNIX98] (EAI_SYSTEM): Likewise.
[XPG4 || UNIX98] (freeaddrinfo): Likewise.
[XPG4 || UNIX98] (gai_strerror): Likewise.
[XPG4 || UNIX98] (getaddrinfo): Likewise.
[XPG4 || UNIX98] (getnameinfo): Likewise.
grp.h declares endgrent and getgrent if __USE_XOPEN2K8 (i.e. 2008
edition of POSIX, non-XSI). However, the 2013 Technical Corrigendum
corrected the grp.h specification to XSI-shade these functions as in
previous editions (see <http://austingroupbugs.net/view.php?id=24>),
so they should not be declared for non-XSI POSIX. This patch corrects
the conditions - using __USE_MISC || __USE_XOPEN_EXTENDED to match
setgrent - and the conform/ test expectations for this header, thereby
fixing the conform tests for this header for XPG3 (where the
expectations were wrong) and the linknamespace tests for it for
POSIX2008 (where the header bug meant it was wrongly considered a
problem for endgrent to bring in a reference to setgrent).
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
[BZ #18528]
* grp/grp.h (endgrent): Condition on [__USE_MISC ||
__USE_XOPEN_EXTENDED], not [__USE_XOPEN_EXTENDED ||
__USE_XOPEN2K8].
(getgrent): Likewise.
* conform/data/grp.h-data [XPG3 || POSIX2008] (getgrent): Do not
expect.
[XPG3 || POSIX2008] (endgrent): Likewise.
[XPG3] (setgrent): Likewise.
* conform/Makefile (test-xfail-XPG3/grp.h/conform): Remove
variable.
(test-xfail-POSIX2008/grp.h/linknamespace): Likewise.
Various functions in XPG4 bring in references to getlogin_r, which is
not in XPG4; this is also a bug for some older POSIX versions which
aren't yet covered by the linknamespace tests. This patch fixes this
by making getlogin_r into a weak alias for __getlogin_r and using
__getlogin_r as needed.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed stripped shared libraries is unchanged by the patch).
[BZ #18527]
* login/getlogin_r.c (getlogin_r): Rename to __getlogin_r and
define as weak alias of __getlogin_r. Use libc_hidden_weak.
* sysdeps/mach/hurd/getlogin_r.c (getlogin_r): Likewise.
* sysdeps/unix/getlogin_r.c (getlogin_r): Likewise.
* sysdeps/unix/sysv/linux/getlogin_r.c (getlogin_r): Likewise.
* include/unistd.h (__getlogin_r): Declare. Use
libc_hidden_proto.
* posix/glob.c (glob): Call __getlogin_r instead of getlogin_r.
* conform/Makefile (test-xfail-XPG3/glob.h/linknamespace): Remove
variable.
(test-xfail-XPG3/wordexp.h/linknamespace): Likewise.
(test-xfail-XPG4/glob.h/linknamespace): Likewise.
(test-xfail-XPG4/wordexp.h/linknamespace): Likewise.
aio_* bring in references to pread, which isn't in all the standards
containing aio_* (as a reference from one library to another, this is
a bug for dynamic as well as static linking). This patch fixes this
by using __libc_pread instead, exporting that function from libc at
symbol version GLIBC_PRIVATE; the code, with conditionals that may
call either __pread64 or __libc_pread, becomes exactly analogous to
that elsewhere in the same file that may call either __pwrite64 or
__libc_pwrite.
Tested for x86_64 and x86 (testsuite, and comparison of disassembly of
installed shared libraries). libc changes because of the PLT entry
for the newly exported __libc_pread; librt changes because of
assertion line numbers and PLT rearrangement; other stripped installed
shared libraries do not change.
[BZ #18519]
* posix/Versions (libc): Export __libc_pread at version
GLIBC_PRIVATE.
* sysdeps/pthread/aio_misc.c (handle_fildes_io): Call __libc_pread
instead of pread.
* conform/Makefile (test-xfail-POSIX/aio.h/linknamespace): Remove
variable.
The functions ecvt, fcvt and gcvt, in some standards, bring in
references to ecvt_r and fcvt_r, which aren't in any of those
standards. The calls are correctly to __ecvt_r and __fcvt_r, but then
the names ecvt_r and fcvt_r are defined as strong aliases; this patch
changes them to weak aliases.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed stripped shared libraries is unchanged by the patch).
[BZ #18522]
* misc/efgcvt_r.c
[LONG_DOUBLE_COMPAT (libc, GLIBC_2_0) && !LONG_DOUBLE_CVT]
(cvt_symbol): Use weak_alias instead of strong_alias.
[LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)] (cvt_symbol): Likewise.
* conform/Makefile (test-xfail-XPG4/stdlib.h/linknamespace):
Remove variable.
(test-xfail-UNIX98/stdlib.h/linknamespace): Likewise.
(test-xfail-XOPEN2K/stdlib.h/linknamespace): Likewise.
