Joseph Myers [Wed, 19 Aug 2015 00:50:17 +0000 (00:50 +0000)]
Fix -Wundef warnings in login/tst-utmp.c.
To remove -Wno-error=undef, we need to fix the remaining cases where
there are -Wundef warnings in the testsuite. One of those places is
in login/tst-utmp.c.
When included from tst-utmpx.c, <utmpx.h> is included instead of
<utmp.h>, meaning the _HAVE_UT_* macros are not defined. The test is
prepared for them not being defined, in that all the relevant
conditionals also include "defined UTMPX". However, they test the
_HAVE_UT_* macros first, so resulting in -Wundef warnings.
This patch does the minimal fix of swapping the || operands. This is
logically correct - avoiding checking a macro we know will not be
defined in the case where it is not defined. It won't fix such
warnings for the case where the toplevel bits/utmp.h is used and most
_HAVE_UT_* aren't defined at all even when <utmp.h> is included, but
that case doesn't apply to any current glibc configuration. Fixing it
would also be tricky in that, while glibc itself consistently uses
_HAVE_UT_* in ways that would work with 0 instead of undefined,
external packages that use the macros expect defined / undefined
instead of 1 / 0 (codesearch.debian.net shows uses by util-linux,
python-utmp, libsys-utmp-perl).
Tested for x86_64.
* login/tst-utmp.c [_HAVE_UT_TYPE || defined UTMPX]: Change
conditional to [defined UTMPX || _HAVE_UT_TYPE].
[_HAVE_UT_TV || defined UTMPX]: Change conditional to [defined
UTMPX || _HAVE_UT_TV].
[_HAVE_UT_TV - 0 || defined UTMPX]: Change conditional to [defined
UTMPX || _HAVE_UT_TV - 0].
Joseph Myers [Tue, 18 Aug 2015 21:52:22 +0000 (21:52 +0000)]
Fix MIPS -Wundef warnings for __mips_isa_rev.
This patch fixes -Wundef warnings relating to __mips_isa_rev being
undefined.
Tested for mips64 (all three ABIs) that there is a clean build and
testsuite run with -Wno-error=undef removed (and my other -Wundef
patches applied).
* sysdeps/mips/dl-machine.h [__mips_isa_rev < 6]: Change
conditionals to [!defined __mips_isa_rev || __mips_isa_rev < 6].
* sysdeps/mips/machine-gmon.h [__mips_isa_rev < 6]: Likewise.
Carlos Eduardo Seo [Thu, 13 Aug 2015 17:33:06 +0000 (14:33 -0300)]
powerpc: Add missing hwcap strings.
Some features in hwcap.h do not have matching string descriptors
to be displayed when LD_SHOW_AUXV=1. This patch fixes the problem.
2015-08-13 Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
* sysdeps/powerpc/dl-procinfo.c:
(_dl_powerpc_cap_flags): Added missing strings for some
hwcap features.
* sysdeps/powerpc/dl-procinfo.h: Updated hwcap bit count.
Paul Eggert [Wed, 22 Jul 2015 05:50:29 +0000 (22:50 -0700)]
Port the 0x7efe...feff pattern to GCC 6.
See Steve Ellcey's bug report in:
https://sourceware.org/ml/libc-alpha/2015-07/msg00673.html
* string/memrchr.c (MEMRCHR):
* string/rawmemchr.c (RAWMEMCHR):
* string/strchr.c (strchr):
* string/strchrnul.c (STRCHRNUL):
Rewrite code to avoid issues with signed shift overflow.
H.J. Lu [Tue, 18 Aug 2015 14:59:49 +0000 (07:59 -0700)]
Define HAS_CPUID/HAS_I586/HAS_I686 from -march=
cpuid, i586 and i686 instructions are available if the processor
specified by -march= supports them. We can use this information
to determine whether those instructions can be used safely.
* sysdeps/x86/cpu-features.c (init_cpu_features): Check
whether cpuid is available only if HAS_CPUID is 0.
* sysdeps/x86/cpu-features.h (HAS_CPUID): New.
(HAS_I586): Likewise.
(HAS_I686): Likewise.
Marko Myllynen [Tue, 11 Aug 2015 07:54:25 +0000 (10:54 +0300)]
Fix lang_lib/lang_term as per ISO 639-2 [BZ #16973]
lang_lib (which reflects ISO 639-2/B (bibliographic) codes) and
lang_term (which reflects ISO 639-2/T (terminology) codes) should be
identical except for those languages for which ISO 639-2 specifies
separate bibliographic/terminology values.
I used this Library of Congress page as the source:
http://www.loc.gov/standards/iso639-2/php/code_list.php
Zack Weinberg [Mon, 17 Aug 2015 15:28:46 +0000 (11:28 -0400)]
regexp.h: update Versions to match file usage [BZ #18681]
Since the new regexp.c code uses the GLIBC_2.23 symbol, make sure we
declare it to avoid warnings/errors.
Mike Frysinger [Tue, 18 Aug 2015 06:59:37 +0000 (02:59 -0400)]
NEWS: note fixed bug
Alan Modra [Sat, 15 Aug 2015 02:15:49 +0000 (22:15 -0400)]
hppa: start.S: rework references to fix PIE TEXTRELs [BZ #18421]
The startup code was not using PIC friendly references leading to TEXTRELs
in every PIE ELF.
Mike Frysinger [Sat, 15 Aug 2015 02:14:28 +0000 (22:14 -0400)]
hppa: timerfd.h: move to common sys/timerfd.h
Use the common sys/timerfd.h to avoid duplication and move the
arch-specific settings into bits/timerfd.h.
Mike Frysinger [Sat, 15 Aug 2015 02:14:16 +0000 (22:14 -0400)]
hppa: signalfd.h: move to common sys/signalfd.h
Use the common sys/signalfd.h to avoid duplication and move the
arch-specific settings into bits/signalfd.h.
Mike Frysinger [Sat, 15 Aug 2015 02:14:00 +0000 (22:14 -0400)]
hppa: inotify.h: move to common sys/inotify.h
Use the common sys/inotify.h to avoid duplication and move the
arch-specific settings into bits/inotify.h.
Mike Frysinger [Sat, 15 Aug 2015 02:13:37 +0000 (22:13 -0400)]
hppa: eventfd.h: move to common sys/eventfd.h
Use the common sys/eventfd.h to avoid duplication and move the
arch-specific settings into bits/eventfd.h.
Mike Frysinger [Sat, 15 Aug 2015 02:12:54 +0000 (22:12 -0400)]
hppa: epoll.h: move to common sys/epoll.h
Use the common sys/epoll.h to avoid duplication and move the arch-specific
settings into bits/epoll.h.
Mike Frysinger [Sat, 15 Aug 2015 02:11:50 +0000 (22:11 -0400)]
hppa: sigaction.h: update define export based on __USE_XOPEN2K8
This brings hppa in line with other ports by exporting a few more defines
based on the __USE_XOPEN2K8 define and not just __USE_MISC.
Mike Frysinger [Sat, 15 Aug 2015 02:11:03 +0000 (22:11 -0400)]
hppa: shm.h: add SHM_EXEC
This brings hppa in line with all the other arches.
Mike Frysinger [Sat, 15 Aug 2015 02:09:30 +0000 (22:09 -0400)]
hppa: drop __ASSUME_LWS_CAS define
We require recent enough kernels for this now, and we've been hardcoding
it to 1, so drop it entirely now.
Mike Frysinger [Sat, 15 Aug 2015 02:07:40 +0000 (22:07 -0400)]
hppa: assume TLS everywhere
This brings hppa inline with all the other arches and main code where we
require TLS support everywhere. That means dropping the defines USE_TLS
and USE___THREAD, and dropping the binutils check (since we already have
a version requirement that is new enough).
Joseph Myers [Mon, 17 Aug 2015 23:02:54 +0000 (23:02 +0000)]
Fix csqrt spurious underflows (bug 18823).
The csqrt functions scale up small arguments to avoid underflows when
calling hypot functions. However, even when hypot does not underflow,
a subsequent calculation of 0.5 * hypot can underflow. This patch
duly increases the threshold and scale factor to avoid such underflows
as well.
Tested for x86_64, x86 and mips64.
[BZ #18823]
* math/s_csqrt.c (__csqrt): Increase threshold and scale factor
for scaling up small arguments.
* math/s_csqrtf.c (__csqrtf): Likewise.
* math/s_csqrtl.c (__csqrtl): Likewise.
* math/auto-libm-test-in: Add more tests of csqrt.
* math/auto-libm-test-out: Regenerated.
Andreas Schwab [Mon, 17 Aug 2015 14:20:46 +0000 (16:20 +0200)]
Add version set GLIBC_2.19 for linux/powerpc
Zack Weinberg [Sun, 12 Jul 2015 19:27:34 +0000 (15:27 -0400)]
Desupport regexp.h (bug 18681)
Paul Pluzhnikov [Sat, 15 Aug 2015 18:42:43 +0000 (11:42 -0700)]
Fix BZ #18084 -- backtrace (..., 0) dumps core on x86.
Other architectures also had bugs, or did unnecessary work.
Mike Frysinger [Sat, 15 Aug 2015 02:43:52 +0000 (22:43 -0400)]
stpncpy: fix bug number [BZ #18795]
The previous commit used 18975 instead of 18795.
Zack Weinberg [Fri, 14 Aug 2015 13:21:44 +0000 (09:21 -0400)]
stpncpy: fix size checking [BZ #18975]
I think the last clause of the conditional,
|| __n <= __bos (__dest)
may be backward. The code should call the runtime-checking function
if __n is not constant, or if __n is known to be LARGER than the size
of the destination.
Joseph Myers [Fri, 14 Aug 2015 17:15:06 +0000 (17:15 +0000)]
Fix fma spurious underflows (bug 18824).
Various fma implementations have logic that, when computing fma (x, y,
z) where z is large (so care needs taking to avoid internal overflow)
but x * y is small, scale x * y up instead of down to avoid internal
underflows resulting from scaling down. (In these cases, x * y is
small enough that only its sign actually matters rather than the exact
value.)
The threshold for scaling up instead of down was correct for "if the
unscaled values were multiplied, the low part of the multiplication
could underflow", and the scaling was sufficient to ensure that the
low part of the multiplication did not underflow (given that cases of
very small x * y - less than half the least subnormal - were
previously dealt with). However, the choice in the functions wasn't
between scaling up or no scaling, but between scaling up and scaling
down (scaling down actually being needed when x * y isn't so small
compared to z and so the exact value does matter). Thus a larger
threshold is needed to ensure that scaling down doesn't produce values
the multiplication of whose low parts underflows. This patch
increases the thresholds accordingly.
Tested for x86_64, x86 and mips64 (with the MIPS version of s_fmal.c
removed so that the ldbl-128 version gets tested instead of the
soft-fp one).
[BZ #18824]
* sysdeps/ieee754/dbl-64/s_fma.c (__fma): Increase threshold for
scaling x * y up instead of down.
* sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Likewise.
* sysdeps/ieee754/ldbl-96/s_fmal.c (__fmal): Likewise.
* math/auto-libm-test-in: Add more tests of fma.
* math/auto-libm-test-out: Regenerated.
Paul Pluzhnikov [Fri, 14 Aug 2015 16:59:04 +0000 (09:59 -0700)]
Regenerated sysdeps/x86_64/fpu/libm-test-ulps with AVX2.
Siddhesh Poyarekar [Fri, 14 Aug 2015 12:30:17 +0000 (05:30 -0700)]
Remove incorrect register mov in floorf/nearbyint on x86_64
The change in
0b5395f052ee09cd7e3d219af4e805c38058afb5 replaced calls
to __get_cpu_features@plt followed by a mov from rax to rdx, with a
single macro LOAD_RTLD_GLOBAL_RO_RDX. It is pretty clear that there
was a typo in s_floorf and __nearbyint due to which the (now incorrect)
mov was not removed. This patch removes that mov.
* sysdeps/x86_64/fpu/multiarch/s_floorf.S (__floorf): Remove
unnecessary movq.
* sysdeps/x86_64/fpu/multiarch/s_nearbyint.S (__nearbyint):
Likewise.
Joseph Myers [Thu, 13 Aug 2015 23:23:23 +0000 (23:23 +0000)]
Add more random libm-test inputs.
This patch adds more test inputs to various libm functions found
through random generation to have larger ulps errors than previously
listed in libm-test-ulp, on at least one of x86_64 and x86.
Tested for x86_64 and x86.
* math/auto-libm-test-in: Add more tests of acos, acosh, asin,
asinh, atan, atan2, atanh, cabs, cbrt, cosh, csqrt, erf, erfc,
exp, exp2, lgamma, log, log1p, log2, pow, sin, sincos, tan, tanh
and tgamma.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
Joseph Myers [Thu, 13 Aug 2015 16:40:39 +0000 (16:40 +0000)]
Fix tanh missing underflows (bug 16520).
Similar to various other bugs in this area, some tanh implementations
do not raise the underflow exception for subnormal arguments, when the
result is tiny and inexact. This patch forces the exception in a
similar way to previous fixes.
Tested for x86_64, x86, mips64 and powerpc.
[BZ #16520]
* sysdeps/ieee754/dbl-64/s_tanh.c: Include <float.h>.
(__tanh): Force underflow exception for arguments with small
absolute value.
* sysdeps/ieee754/flt-32/s_tanhf.c: Include <float.h>.
(__tanhf): Force underflow exception for arguments with small
absolute value.
* sysdeps/ieee754/ldbl-128/s_tanhl.c: Include <float.h>.
(__tanhl): Force underflow exception for arguments with small
absolute value.
* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: Include <float.h>.
(__tanhl): Force underflow exception for arguments with small
absolute value.
* sysdeps/ieee754/ldbl-96/s_tanhl.c: Include <float.h>.
(__tanhl): Force underflow exception for arguments with small
absolute value.
* math/auto-libm-test-in: Add more tests of tanh.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
H.J. Lu [Thu, 13 Aug 2015 11:52:50 +0000 (04:52 -0700)]
Check if cpuid is available in init_cpu_features
Since not all i486 processors support cpuid, we call __get_cpuid_max to
check if cpuid is available before using it if not compiling for i586,
i686 nor x86-64.
* sysdeps/x86/cpu-features.c (init_cpu_features): Call
__get_cpuid_max if not compiling for i586, i686 nor x86-64.
H.J. Lu [Thu, 13 Aug 2015 10:46:13 +0000 (03:46 -0700)]
Don't include <cpuid.h> in elision-conf.h
Don't include the unused <cpuid.h> in Linux/x86 elision-conf.h.
* sysdeps/unix/sysv/linux/x86/elision-conf.h: Don't include
<cpuid.h>.
H.J. Lu [Thu, 13 Aug 2015 10:40:40 +0000 (03:40 -0700)]
Update x86 elision-conf.c for <cpu-features.h>
This patch updates x86 elision-conf.c to use the newly defined
HAS_CPU_FEATURE from <cpu-features.h>.
* sysdeps/unix/sysv/linux/x86/elision-conf.c (elision_init):
Replace HAS_RTM with HAS_CPU_FEATURE (RTM).
H.J. Lu [Thu, 13 Aug 2015 10:40:00 +0000 (03:40 -0700)]
Update libmvec multiarch functions for <cpu-features.h>
This patch updates libmvec multiarch functions to use the newly defined
HAS_CPU_FEATURE, HAS_ARCH_FEATURE and LOAD_RTLD_GLOBAL_RO_RDX from
<cpu-features.h>.
* math/Makefile ($(addprefix $(objpfx), $(libm-vec-tests))):
Remove $(objpfx)init-arch.o.
* sysdeps/x86_64/fpu/Makefile (libmvec-support): Remove
init-arch.
* sysdeps/x86_64/fpu/math-tests-arch.h (avx_usable): Removed.
(INIT_ARCH_EXT): Defined as empty.
(CHECK_ARCH_EXT): Replace HAS_XXX with HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S: Remove
__init_cpu_features call. Replace HAS_XXX with
HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf8_core.S: Likewise.
H.J. Lu [Thu, 13 Aug 2015 10:39:22 +0000 (03:39 -0700)]
Update i686 multiarch functions for <cpu-features.h>
This patch updates i686 multiarch functions to use the newly defined
HAS_CPU_FEATURE, HAS_ARCH_FEATURE, LOAD_GOT_AND_RTLD_GLOBAL_RO and
LOAD_FUNC_GOT_EAX from <cpu-features.h>.
* sysdeps/i386/i686/fpu/multiarch/e_expf.c: Replace HAS_XXX
with HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/i386/i686/fpu/multiarch/s_cosf.c: Likewise.
* sysdeps/i386/i686/fpu/multiarch/s_cosf.c: Likewise.
* sysdeps/i386/i686/fpu/multiarch/s_sincosf.c: Likewise.
* sysdeps/i386/i686/fpu/multiarch/s_sinf.c: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-impl-list.c: Likewise.
* sysdeps/i386/i686/multiarch/s_fma.c: Likewise.
* sysdeps/i386/i686/multiarch/s_fmaf.c: Likewise.
* sysdeps/i386/i686/multiarch/bcopy.S: Remove __init_cpu_features
call. Merge SHARED and !SHARED. Add LOAD_GOT_AND_RTLD_GLOBAL_RO.
Use LOAD_FUNC_GOT_EAX to load function address. Replace HAS_XXX
with HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/i386/i686/multiarch/bzero.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memset.S: Likewise.
* sysdeps/i386/i686/multiarch/memset_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/rawmemchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strcasecmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat.S: Likewise.
* sysdeps/i386/i686/multiarch/strchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/strcspn.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strncase.S: Likewise.
* sysdeps/i386/i686/multiarch/strnlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strspn.S: Likewise.
* sysdeps/i386/i686/multiarch/wcschr.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscmp.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy.S: Likewise.
* sysdeps/i386/i686/multiarch/wcslen.S: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/wmemcmp.S: Likewise.
H.J. Lu [Thu, 13 Aug 2015 10:38:47 +0000 (03:38 -0700)]
Update x86_64 multiarch functions for <cpu-features.h>
This patch updates x86_64 multiarch functions to use the newly defined
HAS_CPU_FEATURE, HAS_ARCH_FEATURE and LOAD_RTLD_GLOBAL_RO_RDX from
<cpu-features.h>.
* sysdeps/x86_64/fpu/multiarch/e_asin.c: Replace HAS_XXX with
HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/fpu/multiarch/e_atan2.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/e_exp.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/e_log.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/e_pow.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_atan.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_fma.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_fmaf.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_sin.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_tan.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_ceil.S: Use
LOAD_RTLD_GLOBAL_RO_RDX and HAS_CPU_FEATURE (SSE4_1).
* sysdeps/x86_64/fpu/multiarch/s_ceilf.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_floor.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_floorf.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_nearbyint.S : Likewise.
* sysdeps/x86_64/fpu/multiarch/s_nearbyintf.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_rintf.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_rintf.S : Likewise.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c: Likewise.
* sysdeps/x86_64/multiarch/sched_cpucount.c: Likewise.
* sysdeps/x86_64/multiarch/strstr.c: Likewise.
* sysdeps/x86_64/multiarch/memmove.c: Likewise.
* sysdeps/x86_64/multiarch/memmove_chk.c: Likewise.
* sysdeps/x86_64/multiarch/test-multiarch.c: Likewise.
* sysdeps/x86_64/multiarch/memcmp.S: Remove __init_cpu_features
call. Add LOAD_RTLD_GLOBAL_RO_RDX. Replace HAS_XXX with
HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/multiarch/memcpy.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memset.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
* sysdeps/x86_64/multiarch/strcat.S: Likewise.
* sysdeps/x86_64/multiarch/strchr.S: Likewise.
* sysdeps/x86_64/multiarch/strcmp.S: Likewise.
* sysdeps/x86_64/multiarch/strcpy.S: Likewise.
* sysdeps/x86_64/multiarch/strcspn.S: Likewise.
* sysdeps/x86_64/multiarch/strspn.S: Likewise.
* sysdeps/x86_64/multiarch/wcscpy.S: Likewise.
* sysdeps/x86_64/multiarch/wmemcmp.S: Likewise.
H.J. Lu [Thu, 13 Aug 2015 10:37:47 +0000 (03:37 -0700)]
Add _dl_x86_cpu_features to rtld_global
This patch adds _dl_x86_cpu_features to rtld_global in x86 ld.so
and initializes it early before __libc_start_main is called so that
cpu_features is always available when it is used and we can avoid
calling __init_cpu_features in IFUNC selectors.
* sysdeps/i386/dl-machine.h: Include <cpu-features.c>.
(dl_platform_init): Call init_cpu_features.
* sysdeps/i386/dl-procinfo.c (_dl_x86_cpu_features): New.
* sysdeps/i386/i686/cacheinfo.c
(DISABLE_PREFERRED_MEMORY_INSTRUCTION): Removed.
* sysdeps/i386/i686/multiarch/Makefile (aux): Remove init-arch.
* sysdeps/i386/i686/multiarch/Versions: Removed.
* sysdeps/i386/i686/multiarch/ifunc-defines.sym (KIND_OFFSET):
Removed.
* sysdeps/i386/ldsodefs.h: Include <cpu-features.h>.
* sysdeps/unix/sysv/linux/x86/Makefile
(libpthread-sysdep_routines): Remove init-arch.
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.c: Include
<sysdeps/x86_64/dl-procinfo.c> instead of
sysdeps/generic/dl-procinfo.c>.
* sysdeps/x86/Makefile [$(subdir) == csu] (gen-as-const-headers):
Add cpu-features-offsets.sym and rtld-global-offsets.sym.
[$(subdir) == elf] (sysdep-dl-routines): Add dl-get-cpu-features.
[$(subdir) == elf] (tests): Add tst-get-cpu-features.
[$(subdir) == elf] (tests-static): Add
tst-get-cpu-features-static.
* sysdeps/x86/Versions: New file.
* sysdeps/x86/cpu-features-offsets.sym: Likewise.
* sysdeps/x86/cpu-features.c: Likewise.
* sysdeps/x86/cpu-features.h: Likewise.
* sysdeps/x86/dl-get-cpu-features.c: Likewise.
* sysdeps/x86/libc-start.c: Likewise.
* sysdeps/x86/rtld-global-offsets.sym: Likewise.
* sysdeps/x86/tst-get-cpu-features-static.c: Likewise.
* sysdeps/x86/tst-get-cpu-features.c: Likewise.
* sysdeps/x86_64/dl-procinfo.c: Likewise.
* sysdeps/x86_64/cacheinfo.c (__cpuid_count): Removed.
Assume USE_MULTIARCH is defined and don't check it.
(is_intel): Replace __cpu_features with GLRO(dl_x86_cpu_features).
(is_amd): Likewise.
(max_cpuid): Likewise.
(intel_check_word): Likewise.
(__cache_sysconf): Don't call __init_cpu_features.
(__x86_preferred_memory_instruction): Removed.
(init_cacheinfo): Don't call __init_cpu_features. Replace
__cpu_features with GLRO(dl_x86_cpu_features).
* sysdeps/x86_64/dl-machine.h: <cpu-features.c>.
(dl_platform_init): Call init_cpu_features.
* sysdeps/x86_64/ldsodefs.h: Include <cpu-features.h>.
* sysdeps/x86_64/multiarch/Makefile (aux): Remove init-arch.
* sysdeps/x86_64/multiarch/Versions: Removed.
* sysdeps/x86_64/multiarch/cacheinfo.c: Likewise.
* sysdeps/x86_64/multiarch/init-arch.c: Likewise.
* sysdeps/x86_64/multiarch/ifunc-defines.sym (KIND_OFFSET):
Removed.
* sysdeps/x86_64/multiarch/init-arch.h: Rewrite.
Paul Pluzhnikov [Thu, 13 Aug 2015 06:51:04 +0000 (23:51 -0700)]
Fix BZ #18820 -- fmemopen may leak memory on failure.
Paul Pluzhnikov [Thu, 13 Aug 2015 01:56:08 +0000 (18:56 -0700)]
Fix BZ #16734 -- fopen calls mmap to allocate its buffer
Paul Pluzhnikov [Wed, 12 Aug 2015 06:40:00 +0000 (23:40 -0700)]
Fix BZ #18086 -- nice resets errno to 0.
Ondrej Bilka [Tue, 28 Jul 2015 20:34:04 +0000 (17:34 -0300)]
powerpc: Fix stpcpy performance for power8
This patch fixes the missing enablement for stpcpy on POWER8.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy.c: Fix ifunc.
Adhemerval Zanella [Fri, 31 Jul 2015 13:48:20 +0000 (10:48 -0300)]
powerpc: Fix PPC64/POWER7 conform tests
When building with --disable-multi-arch the memmove and strstr POWER7
optimization create and uses symbols that conflict with expect conform
tests.
* sysdeps/powerpc/powerpc64/power7/memmove.S (bcopy): Changing to
__bcopy and add a weak_alias to bcopy.
* sysdeps/powerpc/powerpc64/power7/strstr.S (strstr): Use __strnlen
for static build.
Adhemerval Zanella [Tue, 28 Jul 2015 20:12:25 +0000 (17:12 -0300)]
powerpc: Use default strcpy optimization for POWER7
This patches uses the default strcpy/stpcpy implementation for
POWER7/PPC64. This is faster in mostly inputs for benchtests
and for multiarch the implementation uses the POWER7 strlen and
memcpy.
* string/stpcpy.c (__stpcpy): Use STPCPY to redefine symbol name and
cleanup macro usage.
* string/strcpy.c (strcpt): Use STRCPY to redefine symbol name.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S: Remove file.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/stpcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strcpy.c: Likewise.
* sysdeps/powerpc/powerpc64/stpcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/strcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
[SHARED && IS_IN (libc)]: Include <string/strcpy.c>.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
[SHARED && IS_IN (libc)]: Include <string/stpcpy.c>.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.c: New file.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/power7/strcpy.c: Likewise.
Adhemerval Zanella [Tue, 28 Jul 2015 18:39:13 +0000 (15:39 -0300)]
powerpc: Fix strnlen/power7 build
This patch fixes the strnlen.S build with --disable-multi-arch option.
Adhemerval Zanella [Tue, 28 Jul 2015 18:34:25 +0000 (15:34 -0300)]
powerpc: Fix strstr/power7 build
This patch fixes the strstr build with --disable-multi-arch option.
The optimization calls the __strstr_ppc symbol, which always build
for multiarch config but not if it is disable. This patch fixes it
by adding the default C implementation object with the expected
symbol name.
* sysdeps/powerpc/powerpc64/power7/Makefile [$(subdir) = string]
(sysdep_routines): Add strstr-ppc64.
* sysdeps/powerpc/powerpc64/power7/strstr-ppc64.c: New file.
Maxim Ostapenko [Mon, 10 Aug 2015 07:47:54 +0000 (10:47 +0300)]
Clear DF_1_NODELETE flag only for failed to load library.
https://sourceware.org/bugzilla/show_bug.cgi?id=18778
If dlopen fails to load an object that has triggered loading libpthread it
causes ld.so to unload libpthread because its DF_1_NODELETE flags has been
forcefully cleared. The next call to __rtdl_unlock_lock_recursive will crash
since pthread_mutex_unlock no longer exists.
This patch moves l->l_flags_1 &= ~DF_1_NODELETE out of loop through all loaded
libraries and performs the action only on inconsistent one.
[BZ #18778]
* elf/Makefile (tests): Add Add tst-nodelete2.
(modules-names): Add tst-nodelete2mod.
(tst-nodelete2mod.so-no-z-defs): New.
($(objpfx)tst-nodelete2): Likewise.
($(objpfx)tst-nodelete2.out): Likewise.
(LDFLAGS-tst-nodelete2): Likewise.
* elf/dl-close.c (_dl_close_worker): Move DF_1_NODELETE clearing
out of loop through all loaded libraries.
* elf/tst-nodelete2.c: New file.
* elf/tst-nodelete2mod.c: Likewise.
Andreas Schwab [Mon, 10 Aug 2015 13:04:09 +0000 (15:04 +0200)]
Remove unused definition of __openat(64)_nocancel
Joseph Myers [Tue, 11 Aug 2015 00:58:28 +0000 (00:58 +0000)]
Add more tests of various libm functions.
This patch adds more tests of various libm functions found through
random test generation to give increased ulps on 32-bit x86.
Tested for x86_64 and x86.
* math/auto-libm-test-in: Add more tests of acosh, asin, asinh,
atanh, cabs, carg, cbrt, cosh, csqrt, erf, erfc, exp, exp10,
expm1, hypot, log, log10, log1p, log2, pow, sinh, tan and tgamma.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
Joseph Myers [Mon, 10 Aug 2015 20:35:30 +0000 (20:35 +0000)]
Fix ldbl-128ibm tanhl inaccuracy (bug 18790).
ldbl-128ibm tanhl uses a too-small threshold to decide when to return
+/-1, resulting in large errors. This patch changes it to a more
appropriate threshold (the requirement is for 2*exp(-2|x|) to be small
in terms of ulps of 1).
Tested for x86_64, x86 and powerpc.
[BZ #18790]
* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): Increase
threshold for returning +/- 1.
* math/auto-libm-test-in: Add more tests of tanh.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
Andreas Schwab [Mon, 10 Aug 2015 12:12:47 +0000 (14:12 +0200)]
Readd O_LARGEFILE flag for openat64 (bug 18781)
Joseph Myers [Mon, 10 Aug 2015 15:25:10 +0000 (15:25 +0000)]
Fix ldbl-128ibm sinhl inaccuracy near 0 (bug 18789).
ldbl-128ibm sinhl uses a too-big threshold to decide when to return
the argument, resulting in large errors. This patch fixes it to use a
more appropriate threshold.
Tested for x86_64, x86 and powerpc.
[BZ #18789]
* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c (__ieee754_sinhl): Use
smaller threshold for returning the argument.
* math/auto-libm-test-in: Add more tests of sinh.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
H.J. Lu [Sun, 9 Aug 2015 14:59:15 +0000 (07:59 -0700)]
Add a missing break in tst-auditmod3b.c
[BZ #18674]
* sysdeps/i386/tst-auditmod3b.c (la_objsearch): Add a missing
break.
Joseph Myers [Sun, 9 Aug 2015 14:35:43 +0000 (14:35 +0000)]
Resort bug numbers in NEWS into ascending order.
Andreas Schwab [Sun, 9 Aug 2015 14:03:14 +0000 (16:03 +0200)]
Remove unused variables from timezone/Makefile
Mike Frysinger [Thu, 6 Aug 2015 08:14:56 +0000 (04:14 -0400)]
gawk: fix gensub usage
The third arg can either be a string with "g" or "G", or it is a number.
The empty string elicits a warning with newer versions like so:
gawk: scripts/sysd-rules.awk:56: warning: gensub: third argument `' treated as 1
Mike Frysinger [Thu, 6 Aug 2015 08:14:20 +0000 (04:14 -0400)]
fix non-portable `echo -n` usage
These scripts use #!/bin/sh explicitly, so make sure they avoid echo -n
as different shells treat it differently. Use the portable printf func
instead.
Mike Frysinger [Wed, 5 Aug 2015 09:17:29 +0000 (05:17 -0400)]
hppa: put custom madvise defines behind __USE_MISC
No other arch exports these defines, and having them in the default
namespace causes conformance header tests to fail. Put them behind
the __USE_MISC define as that is what other arches seem to use.
John David Anglin [Fri, 7 Aug 2015 15:54:19 +0000 (11:54 -0400)]
hppa: Fix miscompilation of sched_setaffinity() [BZ #18480]
The attached change fixes the miscompilation of sched_setaffinity() on
hppa. This is an old problem that was fixed on other architectures using
a similar approach to the attached change. See:
https://sourceware.org/ml/libc-hacker/2004-04/msg00016.html
Build tested on trunk. Patch has been applied to debian glibc for some time.
Paul Pluzhnikov [Sat, 8 Aug 2015 23:27:58 +0000 (16:27 -0700)]
In preparation for fixing BZ#16734, fix failure in misc/tst-error1-mem
when _G_HAVE_MMAP is turned off.
Paul Pluzhnikov [Sat, 8 Aug 2015 22:54:40 +0000 (15:54 -0700)]
Fix trailing space.
Paul Pluzhnikov [Sat, 8 Aug 2015 22:53:03 +0000 (15:53 -0700)]
Fix BZ #17905
John David Anglin [Fri, 7 Aug 2015 17:37:35 +0000 (13:37 -0400)]
hppa: Fix reload error with atomic code [BZ #18787]
As noted in the bug, the asm operands need to be copied to register
variables to avoid operand reloads in the principal asm of the macro.
See the arm implementation for reference. Otherwise we get:
../sysdeps/unix/sysv/linux/hppa/bits/atomic.h:68:6: error:
can't find a register in class 'R1_REGS' while reloading 'asm'
Build tested on trunk with gcc-4.8. Similar patch has been tested
with 2.19 on Debian hppa-unknown-linux-gnu.
Mike Frysinger [Thu, 6 Aug 2015 06:10:46 +0000 (02:10 -0400)]
microblaze: include unix/sysdep.h
The semi-recent SYSCALL_CANCEL inclusion broke microblaze due to the
sysdep.h header not including the unix/sysdep.h header. Include it
here like all other ports.
Joseph Myers [Fri, 7 Aug 2015 23:10:35 +0000 (23:10 +0000)]
Fix tan missing underflows (bug 16517).
Similar to various other bugs in this area, some tan implementations
do not raise the underflow exception for subnormal arguments, when the
result is tiny and inexact. This patch forces the exception in a
similar way to previous fixes.
Tested for x86_64, x86, mips64 and powerpc.
[BZ #16517]
* sysdeps/ieee754/dbl-64/s_tan.c: Include <float.h>.
(tan): Force underflow exception for arguments with small absolute
value.
* sysdeps/ieee754/flt-32/k_tanf.c: Include <float.h>.
(__kernel_tanf): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-128/k_tanl.c: Include <float.h>.
(__kernel_tanl): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-128ibm/k_tanl.c: Include <float.h>.
(__kernel_tanl): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-96/k_tanl.c: Include <float.h>.
(__kernel_tanl): Force underflow exception for arguments with
small absolute value.
* math/auto-libm-test-in: Add more tests of tan.
* math/auto-libm-test-out: Regenerated.
Arslanbek Astemirov [Fri, 3 Jul 2015 09:19:39 +0000 (09:19 +0000)]
locales/ce_RU: sync with other *_RU locales
[BZ #18618]
* locales/ce_RU (LC_IDENTIFICATION): Fix language.
(LC_TIME): Set first_weekday and first_workday.
(LC_NUMERIC): Copy ru_RU.
Samuel Thibault [Fri, 7 Aug 2015 07:53:56 +0000 (09:53 +0200)]
Fix sysdeps/i386/fpu/s_scalbn.S build
* math/Versions (libc: GLIBC_2_22): New (empty) version set.
Mike Frysinger [Fri, 7 Aug 2015 05:43:08 +0000 (01:43 -0400)]
hppa: _dl_symbol_address: add missing hidden def
Commit
2a6ad8142d14c998e6c5eb51418aac1f598b621e updated the headers and
the common dl-symaddr.c, but missed that hppa has its own dedicated source
file for this func. Update that too to fix build errors due to missing
exports of the symbol.
Samuel Thibault [Thu, 6 Aug 2015 23:38:39 +0000 (01:38 +0200)]
Fix gcrt0.o compilation
When static-start-installed-name is different from
start-installed-name, we must not use the shared objects.
* csu/Makefile
(extra-objs): Add gmon-start.o when building shared library and
$(static-start-installed-name) is different from
$(start-installed-name).
$(objpfx)g$(static-start-installed-name): When building shared
library and $(static-start-installed-name) is different from
$(static-start-installed-name), revert to non-shared rule,
i.e. using $(objpfx)% and gmon-start.o.
Joseph Myers [Thu, 6 Aug 2015 23:01:09 +0000 (23:01 +0000)]
Fix sinh missing underflows (bug 16519).
Similar to various other bugs in this area, some sinh implementations
do not raise the underflow exception for subnormal arguments, when the
result is tiny and inexact. This patch forces the exception in a
similar way to previous fixes.
Tested for x86_64, x86, mips64 and powerpc.
[BZ #16519]
* sysdeps/ieee754/dbl-64/e_sinh.c: Include <float.h>.
(__ieee754_sinh): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/flt-32/e_sinhf.c: Include <float.h>.
(__ieee754_sinhf): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-128/e_sinhl.c: Include <float.h>.
(__ieee754_sinhl): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c: Include <float.h>.
(__ieee754_sinhl): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-96/e_sinhl.c: Include <float.h>.
(__ieee754_sinhl): Force underflow exception for arguments with
small absolute value.
* math/auto-libm-test-in: Add more tests of sinh.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
Paul Pluzhnikov [Thu, 6 Aug 2015 15:51:31 +0000 (08:51 -0700)]
Add #include <unistd.h> to libio/oldfileops.c for write.
Mike Frysinger [Thu, 6 Aug 2015 06:44:44 +0000 (02:44 -0400)]
fix missing ctype.h include
This file uses isspace but doesn't include ctype.h leading to:
isomac.c: In function 'get_null_defines':
isomac.c:305:30: warning: implicit declaration of function 'isspace' [-Wimplicit-function-declaration]
for (end = start + 1; !isspace (*end) && *end != '\0'; ++end)
Arjun Shankar [Mon, 3 Aug 2015 16:14:21 +0000 (16:14 +0000)]
Modify several tests to use test-skeleton.c
These tests were skipped by the use-test-skeleton conversion done in
commit
29955b5d because they did not have an `int main (void)'
declaration. Instead their `main' functions were declared with arguments
(i.e. argc, argv) even though they didn't use them.
Remove these arguments and include the test skeleton in these tests.
Zack Weinberg [Thu, 6 Aug 2015 02:35:28 +0000 (22:35 -0400)]
Correct comments about the history of <regexp.h>
In the "Kill regexp.h" thread, Joseph dug up more accurate information
about exactly which editions of the Single Unix Standard included and
deprecated this header.
Andreas Schwab [Wed, 5 Aug 2015 21:20:49 +0000 (23:20 +0200)]
Properly terminate FDE in makecontext for m68k (bug 18635)
H.J. Lu [Sun, 12 Jul 2015 21:41:20 +0000 (14:41 -0700)]
Align stack to 16 bytes when calling __errno_location
We should align stack to 16 bytes when calling __errno_location.
[BZ #18661]
* sysdeps/x86_64/fpu/s_cosf.S (__cosf): Align stack to 16 bytes
when calling __errno_location.
* sysdeps/x86_64/fpu/s_sincosf.S (__sincosf): Likewise.
* sysdeps/x86_64/fpu/s_sinf.S (__sinf): Likewise.
H.J. Lu [Sun, 12 Jul 2015 21:40:25 +0000 (14:40 -0700)]
Align stack to 16 bytes when calling __gettimeofday
Subtract stack by 24 bytes instead of 16 bytes so that stack is aligned
to 16 bytes when calling __gettimeofday.
[BZ #18661]
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
(__lll_timedwait_tid): Align stack to 16 bytes when calling
__gettimeofday.
H.J. Lu [Sun, 12 Jul 2015 21:38:58 +0000 (14:38 -0700)]
Align stack to 16 bytes when calling __setcontext
Don't use pop to restore %rdi so that stack is aligned to 16 bytes
when calling __setcontext.
[BZ #18661]
* sysdeps/unix/sysv/linux/x86_64/__start_context.S
(__start_context): Don't use pop to restore %rdi so that stack
is aligned to 16 bytes when calling __setcontext.
H.J. Lu [Wed, 29 Jul 2015 10:41:58 +0000 (03:41 -0700)]
Compile {memcpy,strcmp}-sse2-unaligned.S only for libc
{memcpy,strcmp}-sse2-unaligned.S aren't needed in ld.so.
* sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S: Compile
only for libc.
* sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S: Likewise.
Wilco Dijkstra [Wed, 5 Aug 2015 14:58:15 +0000 (15:58 +0100)]
Improve performance of mempcpy by inlining and using memcpy. Enable
this for all targets except sparc which has an optimized mempcpy
implementation.
Wilco Dijkstra [Wed, 5 Aug 2015 14:24:06 +0000 (15:24 +0100)]
Improve memccpy performance by using memchr/memcpy/mempcpy rather than
a byte loop. Overall performance on bench-memccpy is > 2x faster when
using the C implementation of memchr and an optimized memcpy.
Wilco Dijkstra [Wed, 5 Aug 2015 14:15:28 +0000 (15:15 +0100)]
This patch improves strncpy performance by using strnlen/memcpy rather than a byte loop. Performance
on bench-strncpy is 1.9-2.1x faster on average. I tried several variations, and using a tailcall and
calling memset conditionally gave the best overall results.
Wilco Dijkstra [Wed, 5 Aug 2015 14:03:08 +0000 (15:03 +0100)]
Improve feenableexcept performance - avoid an unnecessary FPCR read in case
the FPCR does not change. Also improve the logic of the return value.
Wilco Dijkstra [Wed, 5 Aug 2015 13:57:37 +0000 (14:57 +0100)]
Improve fesetenv performance by avoiding unnecessary FPSR/FPCR reads/writes.
It uses the same logic as the ARM version. The common case removes 1 FPSR
and 1 FPCR read. For FE_DFL_ENV and FE_NOMASK_ENV a FPCR read is avoided in
case the FPCR does not change.
H.J. Lu [Wed, 5 Aug 2015 15:15:51 +0000 (08:15 -0700)]
Also check dead->data[category] != NULL
_nl_load_locale_from_archive (int category, const char **namep)
has
for (cnt = 0; cnt < __LC_LAST; ++cnt)
if (cnt != LC_ALL)
{
lia->data[cnt] = _nl_intern_locale_data (cnt,
results[cnt].addr,
results[cnt].len);
if (__glibc_likely (lia->data[cnt] != NULL))
{
...
}
}
lia->data[cnt] can be NULL, which happens to en_US.UTF-8 with
LC_COLLATE. But this won't happen if glibc is configured with
--enable-hardcoded-path-in-tests. We should also check
dead->data[category] != NULL.
* locale/loadarchive.c (_nl_archive_subfreeres): Also check
dead->data[category] != NULL.
Joseph Myers [Wed, 5 Aug 2015 15:01:58 +0000 (15:01 +0000)]
Fix powf (close to -1, large) (bug 18647).
The flt-32 implementation of powf wrongly uses x-1 instead of |x|-1
when computing log (x) for the case where |x| is close to 1 and y is
large. This patch fixes the logic accordingly. Relevant tests
existed for x close to 1, and corresponding tests are added for x
close to -1, as well as for some new variant cases.
Tested for x86_64 and x86.
[BZ #18647]
* sysdeps/ieee754/flt-32/e_powf.c (__ieee754_powf): For large y
and |x| close to 1, use absolute value of x when computing log.
* math/auto-libm-test-in: Add more tests of pow.
* math/auto-libm-test-out: Regenerated.
Adhemerval Zanella [Mon, 6 Jul 2015 13:00:29 +0000 (13:00 +0000)]
arm: Assembly implementation cleanup
This patch removes arm assembly implementation of mmap and mmap64.
The new implementation used is the wordsize-32 generic linux one.
Tested on armhf.
Marko Myllynen [Fri, 12 Jun 2015 14:05:25 +0000 (17:05 +0300)]
localedata: remove timezone information [BZ #18525]
as discussed in the thread starting at
https://sourceware.org/ml/libc-alpha/2015-06/msg00098.html
it looks like the best options is to remove locale timezone information
from locales which currently provide it (in incomplete or incorrect
fashion) rather than to start duplicating tzdata info in glibc.
Daniel Marjamäki [Fri, 22 May 2015 08:00:26 +0000 (08:00 +0000)]
Updated __nonnull annotations for wcscat, wcsncat, wcscmp and wcsncmp [BZ #18265]
This patch adds __nonnull annotations for wcscat, wcsncat, wcscmp and wcsncmp.
These added annotations match the annoations for strcat, strncat, strcmp, strncmp in glibc.
Mike Frysinger [Tue, 4 Aug 2015 11:26:46 +0000 (07:26 -0400)]
test-skeleton: add usage information
I keep trying to run tests with --help and then remembering that does
nothing when it throws an error. That means I have to dig into the
source when I want to refer to flags or env vars and re-read a good
amount of code to find the nested locations.
Make this all much more user friendly with a usage screen that gets
printed out whenever an unknown option is specified.
Mike Frysinger [Wed, 29 Jul 2015 15:35:37 +0000 (11:35 -0400)]
mmap64: fix undef warnings
The only target that defines this is m68k, so move the existing fallback
define up to avoid warnings on other systems.
Mike Frysinger [Thu, 30 Jul 2015 02:53:28 +0000 (22:53 -0400)]
nptl: fix set-but-unused warning w/_STACK_GROWS_UP
On arches that set _STACK_GROWS_UP, the stacktop variable is declared
and set, but never actually used. Refactor the code a bit so that the
variable is only declared/set under _STACK_GROWS_DOWN settings.
Carlos O'Donell [Wed, 5 Aug 2015 07:01:50 +0000 (03:01 -0400)]
Open development for 2.23.
Carlos O'Donell [Wed, 5 Aug 2015 06:42:21 +0000 (02:42 -0400)]
Update version.h and include/features.h for 2.22 release
Chris Metcalf [Tue, 4 Aug 2015 16:02:10 +0000 (12:02 -0400)]
tilepro: fix warnings in sysdeps/tile/tilepro/bits/atomic.h
Using a ({ }) structure avoids the "value computed is not used"
that a simple () structure causes.
Andreas Schwab [Tue, 4 Aug 2015 10:35:50 +0000 (12:35 +0200)]
Properly terminate FDE in makecontext for ix86 (bug 18635)
Carlos O'Donell [Sat, 1 Aug 2015 18:48:31 +0000 (14:48 -0400)]
Updated translations for 2.22.
Zack Weinberg [Sat, 1 Aug 2015 18:38:05 +0000 (14:38 -0400)]
Deprecate the use of regexp.h
<regexp.h> (not to be confused with <regex.h>) is an obsolete and
frankly horrible regular expression-matching API. It was part of SVID
but was withdrawn in Issue 5 (for reference, we're on Issue 7 now).
It doesn't do anything you can't do with <regex.h>, and using it
involves defining a bunch of macros before including the header.
Moreover, the code in regexp.h that uses those macros has been buggy
since its creation (in 1996) and no one has noticed, which indicates
to me that there are no users. (Specifically, RETURN() is used in a
whole bunch of cases where it should have been ERROR().)
The header is given a warning and marked deprecated for 2.22.
See:
https://sourceware.org/ml/libc-alpha/2015-07/msg00862.html and
https://sourceware.org/ml/libc-alpha/2015-07/msg00871.html.
Carlos O'Donell [Fri, 31 Jul 2015 04:13:33 +0000 (00:13 -0400)]
Regenerate libc.pot for 2.22 release.
Andrew Senkevich [Thu, 30 Jul 2015 15:00:24 +0000 (18:00 +0300)]
Prevent runtime fail of SSE vector math tests on non SSE4.1 machine.
[BZ #18740]
* sysdeps/x86_64/fpu/Makefile (double-vlen2-arch-ext-cflags,
float-vlen4-arch-ext-cflags): Removed.
* math/Makefile (CFLAGS-test-double-vlen2-wrappers.c,
CFLAGS-test-float-vlen4-wrappers.c): Likewise.
Mike Frysinger [Thu, 30 Jul 2015 14:08:35 +0000 (10:08 -0400)]
hppa: add bz entry for pthreadtypes.h fix
Mike Frysinger [Thu, 30 Jul 2015 09:02:15 +0000 (05:02 -0400)]
hppa: fix pthreadtypes.h namespace failures
The conform tests flag the "aligned" symbol used inside the attributes,
so rename it to __aligned__ like other headers.
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