* [Bug math/16739] IBM long double nextafterl wrong on power of two value
2014-03-22 9:40 [Bug math/16739] New: IBM long double nextafterl wrong on power of two value amodra at gmail dot com
@ 2014-03-22 9:41 ` amodra at gmail dot com
2014-03-25 2:32 ` amodra at gmail dot com
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From: amodra at gmail dot com @ 2014-03-22 9:41 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16739
Alan Modra <amodra at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at sourceware dot org |amodra at gmail dot com
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2014-03-22 9:41 ` [Bug math/16739] " amodra at gmail dot com
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To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16739
Alan Modra <amodra at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |powerpc64-linux
URL| |https://sourceware.org/ml/l
| |ibc-alpha/2014-03/msg00751.
| |html
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2014-03-22 9:40 [Bug math/16739] New: IBM long double nextafterl wrong on power of two value amodra at gmail dot com
2014-03-22 9:41 ` [Bug math/16739] " amodra at gmail dot com
2014-03-25 2:32 ` amodra at gmail dot com
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To: glibc-bugs
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--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
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from af6b17973cbc07ac06cfb40eeab5cc2391fb489a (commit)
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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b0abbc21034f0e5edc49023d8fda0616173faf17
commit b0abbc21034f0e5edc49023d8fda0616173faf17
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:46:19 2014 +1030
Correct IBM long double nextafterl.
Fix for values near a power of two, and some tidies.
[BZ #16739]
* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Correct
output when value is near a power of two. Use int64_t for lx and
remove casts. Use decimal rather than hex exponent constants.
Don't use long double multiplication when double will suffice.
* math/libm-test.inc (nextafter_test_data): Add tests.
* NEWS: Add 16739 and 16786 to bug list.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 10 ++++++
NEWS | 2 +-
math/libm-test.inc | 8 ++++
sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c | 49 +++++++++++++++++++---------
4 files changed, 52 insertions(+), 17 deletions(-)
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To: glibc-bugs
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Alan Modra <amodra at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Alan Modra <amodra at gmail dot com> ---
Fixed
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--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
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The branch, ibm/2.19/master has been updated
via e266b71770050a4d0cb276f4afea1c5b05215184 (commit)
via b23fc92895aff0ce3d3134a91adaa253bffd187a (commit)
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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e266b71770050a4d0cb276f4afea1c5b05215184
commit e266b71770050a4d0cb276f4afea1c5b05215184
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:46:19 2014 +1030
Correct IBM long double nextafterl.
Fix for values near a power of two, and some tidies.
[BZ #16739]
* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Correct
output when value is near a power of two. Use int64_t for lx and
remove casts. Use decimal rather than hex exponent constants.
Don't use long double multiplication when double will suffice.
* math/libm-test.inc (nextafter_test_data): Add tests.
* NEWS: Add 16739 and 16786 to bug list.
Backport of b0abbc21034f0e5edc49023d8fda0616173faf17.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b23fc92895aff0ce3d3134a91adaa253bffd187a
commit b23fc92895aff0ce3d3134a91adaa253bffd187a
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:42:27 2014 +1030
Correct prefetch hint in power7 memrchr.
Typo fix.
* sysdeps/powerpc/powerpc64/power7/memrchr.S: Correct stream hint.
Backport of af6b17973cbc07ac06cfb40eeab5cc2391fb489a.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=acd56f757b4e5ab8737b9564bd7a4ad1009acd8d
commit acd56f757b4e5ab8737b9564bd7a4ad1009acd8d
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:40:21 2014 +1030
Fix reference to toc symbol.
https://sourceware.org/ml/binutils/2014-03/msg00033.html removes the
"magic" treatment of symbols defined in a .toc section.
* sysdeps/powerpc/powerpc64/start.S: Add @toc to toc symbol reference.
Backport of 483818d768ed99a5edf4114298a75ebedaee8d5c.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fd5100c480beef3d36c4bf74b6a23529695d036c
commit fd5100c480beef3d36c4bf74b6a23529695d036c
Author: Alan Modra <amodra@gmail.com>
Date: Tue Apr 1 14:07:42 2014 +1030
Fix s_copysign stack temp for PowerPC64 ELFv2
[BZ #16786]
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Don't trash stack.
Backport of c859b32e9d76afe8a3f20bb9528961a573c06937.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 23 +++++++++++++
NEWS | 2 +-
math/libm-test.inc | 8 ++++
sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c | 49 +++++++++++++++++++---------
sysdeps/powerpc/powerpc64/fpu/s_copysign.S | 4 +-
sysdeps/powerpc/powerpc64/power7/memrchr.S | 2 +-
sysdeps/powerpc/powerpc64/start.S | 2 +-
7 files changed, 69 insertions(+), 21 deletions(-)
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To: glibc-bugs
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Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
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The branch, ibm/2.19/master has been created
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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=88a8a351f3a6a95205a1499fd68b79fc3d0b9d19
commit 88a8a351f3a6a95205a1499fd68b79fc3d0b9d19
Author: Carlos O'Donell <carlos@redhat.com>
Date: Wed Nov 19 11:44:12 2014 -0500
CVE-2014-7817: wordexp fails to honour WRDE_NOCMD.
The function wordexp() fails to properly handle the WRDE_NOCMD
flag when processing arithmetic inputs in the form of "$((... ``))"
where "..." can be anything valid. The backticks in the arithmetic
epxression are evaluated by in a shell even if WRDE_NOCMD forbade
command substitution. This allows an attacker to attempt to pass
dangerous commands via constructs of the above form, and bypass
the WRDE_NOCMD flag. This patch fixes this by checking for WRDE_NOCMD
in exec_comm(), the only place that can execute a shell. All other
checks for WRDE_NOCMD are superfluous and removed.
We expand the testsuite and add 3 new regression tests of roughly
the same form but with a couple of nested levels.
On top of the 3 new tests we add fork validation to the WRDE_NOCMD
testing. If any forks are detected during the execution of a wordexp()
call with WRDE_NOCMD, the test is marked as failed. This is slightly
heuristic since vfork might be used in the future, but it provides a
higher level of assurance that no shells were executed as part of
command substitution with WRDE_NOCMD in effect. In addition it doesn't
require libpthread or libdl, instead we use the public implementation
namespace function __register_atfork (already part of the public ABI
for libpthread).
Tested on x86_64 with no regressions.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=32404a33a03747951daafde164e3b14464c28fe9
commit 32404a33a03747951daafde164e3b14464c28fe9
Author: Allan McRae <allan@archlinux.org>
Date: Thu Dec 18 11:01:43 2014 +1000
Label CVE-2014-9402 in NEWS
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d2a6f3a27b791d91beec2ea91f293ec898080904
commit d2a6f3a27b791d91beec2ea91f293ec898080904
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Dec 15 17:41:13 2014 +0100
Avoid infinite loop in nss_dns getnetbyname [BZ #17630]
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=39700792d4224af99ab52ea26e98a0a2a2ed6ac6
commit 39700792d4224af99ab52ea26e98a0a2a2ed6ac6
Author: Jeff Law <law@redhat.com>
Date: Mon Dec 15 10:09:32 2014 +0100
CVE-2012-3406: Stack overflow in vfprintf [BZ #16617]
A larger number of format specifiers coudld cause a stack overflow,
potentially allowing to bypass _FORTIFY_SOURCE format string
protection.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5cefe3fc8f35b50eb84cbb740268539a40651173
commit 5cefe3fc8f35b50eb84cbb740268539a40651173
Author: Allan McRae <allan@archlinux.org>
Date: Sat Jun 21 17:23:55 2014 +1000
Mention CVE-2014-4043 in NEWS
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=eece504424b59a1d8de7b4da9c64e24acaa6fbe0
commit eece504424b59a1d8de7b4da9c64e24acaa6fbe0
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Jun 11 23:12:52 2014 +0200
posix_spawn_file_actions_addopen needs to copy the path argument (BZ 17048)
POSIX requires that we make a copy, so we allocate a new string
and free it in posix_spawn_file_actions_destroy.
Reported by David Reid, Alex Gaynor, and Glyph Lefkowitz. This bug
may have security implications.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=dcf0cce30d91100005e9aeb002096236325648fb
commit dcf0cce30d91100005e9aeb002096236325648fb
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon May 12 15:24:12 2014 +0200
_nl_find_locale: Improve handling of crafted locale names [BZ #17137]
Prevent directory traversal in locale-related environment variables
(CVE-2014-0475).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a5da5d74ff2e0a6ee267f283be8dbccc92cec59a
commit a5da5d74ff2e0a6ee267f283be8dbccc92cec59a
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Aug 26 19:38:59 2014 +0200
__gconv_translit_find: Disable function [BZ #17187]
This functionality has never worked correctly, and the implementation
contained a security vulnerability (CVE-2014-5119).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e6cbfc1fa2c64cad3c599f419dd154cec5af23cc
commit e6cbfc1fa2c64cad3c599f419dd154cec5af23cc
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Sep 3 19:45:43 2014 +0200
CVE-2014-6040: Crashes on invalid input in IBM gconv modules [BZ #17325]
These changes are based on the fix for BZ #14134 in commit
6e230d11837f3ae7b375ea69d7905f0d18eb79e5.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fa7cc069f4eb29c00ec3a833d73ec4a473b11c8a
commit fa7cc069f4eb29c00ec3a833d73ec4a473b11c8a
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 29 13:56:44 2014 -0500
PowerPC: Fix gprof entry point for LE
This patch fixes the ELFv2 gprof entry point since the ABI
does not define function descriptors. It fixes BZ#17213.
This is a backport of a53fbd8e6cd2f69bdfa3431d616a5f332aea6664.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3c640c4acb9bc2c2cc7fa77d5ce1254953761dc1
commit 3c640c4acb9bc2c2cc7fa77d5ce1254953761dc1
Author: Alan Modra <amodra@gmail.com>
Date: Mon Jul 14 21:14:50 2014 +0930
Correct DT_PPC64_NUM
[BZ #17153]
* elf/elf.h (DT_PPC64_NUM): Correct value.
* NEWS: Add to fixed bug list.
This is a backport of f6c44d475104e931bab2b4ffa499961088de673c.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=957afa3407c426969eaaa348981b9648d5191ae2
commit 957afa3407c426969eaaa348981b9648d5191ae2
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 8 08:54:09 2014 -0500
PowerPC: Cleanup powerpc memmove
Now that MEMCPY_OK_FOR_FWD_MEMMOVE should be define on memcopy.h there
is no need to specialized powerpc memmove implementation. This patch
moves the define set to powerpc memcopy and cleanup its definition on
powerpc code.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8d9513a103bdd202ffa4884bdedc2c3c0dbab210
commit 8d9513a103bdd202ffa4884bdedc2c3c0dbab210
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 8 08:49:54 2014 -0500
PowerPC: Fix compiler warnings
This patch fixes some compiler due trailing data in #undef directives
and due missing prototypes.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b00ec143897f076ecbcedc7369b4b74e0c7f6d14
commit b00ec143897f076ecbcedc7369b4b74e0c7f6d14
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 8 08:35:44 2014 -0500
PowerPC: Add ifunc tests for memmove
This patch add the missing ifunc tests definition for memmove ppc32
optimization patch (commit 07aedd7).
This is a backport of 91f4b564bd7bedcd93e7047cad570ce292d6330b.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=565e3d6c8230affd7089bf5ebfcebbf72f32a27c
commit 565e3d6c8230affd7089bf5ebfcebbf72f32a27c
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Wed Jun 25 11:54:31 2014 -0500
PowerPC: Align power7 memcpy using VSX to quadword
This patch changes power7 memcpy to use VSX instructions only when
memory is aligned to quardword. It is to avoid unaligned kernel traps
on non-cacheable memory (for instance, memory-mapped I/O).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6fae3527af330c32399e3a4cdfac3958fc440eb8
commit 6fae3527af330c32399e3a4cdfac3958fc440eb8
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jun 24 08:47:52 2014 -0500
PowerPC: optimized memmove for POWER7/PPC32
This patch adds a optimized memmove for power7 by using the optimized
power7 memcpy for forward copying.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5d55f9b05ecb85b7a543f641829479cfb081f380
commit 5d55f9b05ecb85b7a543f641829479cfb081f380
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Jun 20 12:55:16 2014 -0500
PowerPC: optimized memmove for POWER7/PPC64
This patch adds an optimized memmove optimization for POWER7/powerpc64.
Basically the idea is to use the memcpy for POWER7 on non-overlapped
memory regions and a optimized backward memcpy for memory regions
that overlap (similar to the idea of string/memmove.c).
The backward memcpy algorithm used is similar the one use for memcpy for
POWER7, with adjustments done for alignment. The difference is memory
is always aligned to 16 bytes before using VSX/altivec instructions.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=dde00e9914370ddd90c9bbc4f3f0e455efae4b47
commit dde00e9914370ddd90c9bbc4f3f0e455efae4b47
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jun 24 06:42:31 2014 -0500
PowerPC: memmove default implementation cleanup
This patch removes the powerpc specific logic in memmove and instead
include default implementation with MEMCPY_OK_FOR_FWD_MEMMOVE defined.
This lead in a increase performance, since the constraints to use
memcpy in powerpc code are too restrictive and memcpy can be used for
any forward memmove.
This is a backport of d6f68bbef4427850c2901728a1d13efc0e687297.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9841a0850ed3be4310ec6b49c3349e39a6f0f481
commit 9841a0850ed3be4310ec6b49c3349e39a6f0f481
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Wed Jun 11 22:21:20 2014 -0500
PowerPC: strcat optimization for PPC64/POWER7
This patch adds an ifunc power7 strcat symbol that uses the logic on
sysdeps/powerpc/strcat.c but call power7 strlen/strcpy symbols instead
of default ones.
This is a backport of bc8ea38590070604006399e42469087e943fc8ec.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ded8852b37f673b8e66163b44f70504dc5af0985
commit ded8852b37f673b8e66163b44f70504dc5af0985
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Jun 23 09:38:47 2014 -0500
PowerPC: sync hwcap.h capabilities
Linux commit dd58a092c4202f2bd490adab7285b3ff77f8e467 added the
PPC_FEATURE2_VEC_CRYPTO auvx capability to indicate whether to
hardware supports vector crypto hardware instructions. This patch
adds its definition to powerpc hwcap bits.
This is a backport of db22400947e1c82153e5270d23fed53fc1e3a659.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7e986751f5c05f3363c01c717972f87a681da0d0
commit 7e986751f5c05f3363c01c717972f87a681da0d0
Author: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Tue Jun 17 08:46:25 2014 -0500
PowerPC: Fix nearbyintl failure for few inputs
This patch fixes few failures in nearbyintl() where the fraction part is
close to 0.5.i The new tests added report few extra failures in
nearbyint_downward and nearbyint_towardzero which is a known issue.
Fixes #17031.
This is a backport of 754c5a08aacb44895d1ab97c553ce424eb43f761.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2289a56644fc05786e2d5637c76d47afea7d38b9
commit 2289a56644fc05786e2d5637c76d47afea7d38b9
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Fri Jun 6 07:56:07 2014 -0500
PowerPC: Optimized strcmp for PPC64/POWER7
Optimization is achieved on 8 byte aligned strings with double word
comparison using cmpb instruction. On unaligned strings loop unrolling
is applied for Power7 gain.
It is a backport of e23d3d2690bf63207b1a47e83a94693daebbbfe5.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=010c023685495f4cd907b7bf7d15375edcbe1ead
commit 010c023685495f4cd907b7bf7d15375edcbe1ead
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Jun 6 09:37:07 2014 -0500
PowerPC: Fix optimized strncat strlen call
This patch fixes the optimized ppc64/power7 strncat strlen call for
static build without ifunc enabled. The strlen symbol to call in such
situation is just strlen, instead of __GI_strlen (since the __GI_
alias is just created for shared objects).
It is a backport of ed36bfa18faf9be457575568e64b8409e46caa22.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6f0aba1acab171bd853905b66c551336aa0adcf9
commit 6f0aba1acab171bd853905b66c551336aa0adcf9
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Apr 8 17:25:14 2014 -0500
PowerPC: Fix --disable-multi-arch builds
This patch fixes some powerpc32 and powerpc64 builds with
--disable-multi-arch option along with different --with-cpu=powerN.
It cleanups the Implies directories by removing the multiarch
folder for non multiarch config and also fixing two assembly
implementations: powerpc64/power7/strncat.S that is calling the
wrong strlen; and power8/fpu/s_isnan.S that misses the hidden_def and
weak_alias directives.
It is a backport of de21c33c068c8e39afb5711613a7c083c11ce6a1.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e40df8c4677611afc48601472675593dfd087e4b
commit e40df8c4677611afc48601472675593dfd087e4b
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu May 22 14:48:38 2014 -0500
PowerPC: Remove 64 bits instructions in PPC32 code
This patch replaces the insrdi by insrwi in powerpc32 assembly.
It is a backport of d298c41635ce7f2dc7c3eccc842fe3aa754c0c8e.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a448439dfffc0878121e0941be9717e05786b1fe
commit a448439dfffc0878121e0941be9717e05786b1fe
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu May 22 07:53:44 2014 -0500
PowerPC: Fix memchr ifunc hidden symbol for PPC32
This patch fixes a similar issue to
736c304a1ab4cee36a2f3343f1698bc0abae4608, where for PPC32 if the symbol
is defined as hidden (memchr) then compiler will create a local branc
(symbol@local) and the linker will not create a required PLT call to
make the ifunc work. It changes the default hidden symbol (__GI_memchr)
to default memchr symbol for powerpc32 (__memchr_ppc32).
Backport of 3d2badacf185fac740a2992240a817fb2ca325af.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c725f80591aa98c5c0270feb80e857c5943c861a
commit c725f80591aa98c5c0270feb80e857c5943c861a
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon May 19 17:56:55 2014 -0500
PowerPC: Fix multiarch hypotf PPC64 path
This patch moves the hypotf multiarch implementation to correct path.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1db8c8c873e6112ee4ecddf1eff54f4abaab91a7
commit 1db8c8c873e6112ee4ecddf1eff54f4abaab91a7
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Mon May 5 19:10:45 2014 -0500
PowerPC: strncpy/stpncpy optimization for PPC64/POWER7
The optimization is achieved by following techniques:
> data alignment [gain from aligned memory access on read/write]
> POWER7 gains performance with loop unrolling/unwinding
[gain by reduction of branch penalty].
> zero padding done by calling optimized memset
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=08111251bbd7275024d9c945f442f61b06d98910
commit 08111251bbd7275024d9c945f442f61b06d98910
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri May 2 12:00:36 2014 -0500
PowerPC: ifunc improvement for internal calls
This patch changes de default symbol redirection for internal call of
memcpy, memset, memchr, and strlen to the IFUNC resolved ones. The
performance improvement is noticeable in algorithms that uses these
symbols extensible, like the regex functions.
This is a backport of 19c4bec0f43599eecc2f32de96ae179cd7d64053.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a8050d789589b73e7908b806d5c929facf76cc6b
commit a8050d789589b73e7908b806d5c929facf76cc6b
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 16 19:33:32 2014 +0930
Correct IBM long double frexpl.
Besides fixing the bugzilla, this also fixes corner-cases where the high
and low double differ greatly in magnitude, and handles a denormal
input without resorting to a fp rescale.
[BZ #16740]
[BZ #16619]
* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Rewrite.
* math/libm-test.inc (frexp_test_data): Add tests.
Backport of aa5f0ff11ad2cc85277c64cf65c723a9664e1149 and
9860b0450275ad2b69cb9360fd01d5c122a65fc5.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=154d4d95f48061d5ab890c85b6015221c1accc6e
commit 154d4d95f48061d5ab890c85b6015221c1accc6e
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Sun Apr 6 14:50:11 2014 -0500
PowerPC: Fix nearbyint/nearbyintf result for FE_DOWNWARD
This patch fixes the powerpc32 optimized nearbyint/nearbyintf bogus
results for FE_DOWNWARD rounding mode. This is due wrong instructions
sequence used in the rounding calculation (two subtractions instead of
adition and a subtraction).
Fixes BZ#16815.
Backport of 8bd70862e11023e7f827f240a5a214f847ae982d.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e266b71770050a4d0cb276f4afea1c5b05215184
commit e266b71770050a4d0cb276f4afea1c5b05215184
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:46:19 2014 +1030
Correct IBM long double nextafterl.
Fix for values near a power of two, and some tidies.
[BZ #16739]
* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Correct
output when value is near a power of two. Use int64_t for lx and
remove casts. Use decimal rather than hex exponent constants.
Don't use long double multiplication when double will suffice.
* math/libm-test.inc (nextafter_test_data): Add tests.
* NEWS: Add 16739 and 16786 to bug list.
Backport of b0abbc21034f0e5edc49023d8fda0616173faf17.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b23fc92895aff0ce3d3134a91adaa253bffd187a
commit b23fc92895aff0ce3d3134a91adaa253bffd187a
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:42:27 2014 +1030
Correct prefetch hint in power7 memrchr.
Typo fix.
* sysdeps/powerpc/powerpc64/power7/memrchr.S: Correct stream hint.
Backport of af6b17973cbc07ac06cfb40eeab5cc2391fb489a.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=acd56f757b4e5ab8737b9564bd7a4ad1009acd8d
commit acd56f757b4e5ab8737b9564bd7a4ad1009acd8d
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:40:21 2014 +1030
Fix reference to toc symbol.
https://sourceware.org/ml/binutils/2014-03/msg00033.html removes the
"magic" treatment of symbols defined in a .toc section.
* sysdeps/powerpc/powerpc64/start.S: Add @toc to toc symbol reference.
Backport of 483818d768ed99a5edf4114298a75ebedaee8d5c.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fd5100c480beef3d36c4bf74b6a23529695d036c
commit fd5100c480beef3d36c4bf74b6a23529695d036c
Author: Alan Modra <amodra@gmail.com>
Date: Tue Apr 1 14:07:42 2014 +1030
Fix s_copysign stack temp for PowerPC64 ELFv2
[BZ #16786]
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Don't trash stack.
Backport of c859b32e9d76afe8a3f20bb9528961a573c06937.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a51aafa398ed7dd2a0a846c1b2ed8a37909609eb
commit a51aafa398ed7dd2a0a846c1b2ed8a37909609eb
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Mar 31 08:07:55 2014 -0500
PowerPC: Fix little endian enconding for mfvsrd
This patch fixes the MFVSRD_R3_V1 macro that encodes 'mfvsrd r3,vs1'
(to support old binutils) for little endian.
Backport of 757d9dd5c3efa56fac75965abc014faaae7b7895.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=62caa3eed2a154a61a01df3a5f3dde3ff400f4d4
commit 62caa3eed2a154a61a01df3a5f3dde3ff400f4d4
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Mar 20 15:28:07 2014 -0500
PowerPC: optimized strpbrk for POWER7
This patch add an optimized strpbrk for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance on
the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and memory
clear using VSX instructions.
Backport of 6f23d0939e9651d8ac3c77a835fb6464b35a1dc4
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c0afc58657f482f4c31ccade06e7b059e761186c
commit c0afc58657f482f4c31ccade06e7b059e761186c
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Mar 20 11:24:52 2014 -0500
PowerPC: optimized strcspn for PPC64/POWER7
This patch add a optimized strcspn for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance
on the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and align
stack memory to table to 16 bytes (so VSX clean can ran without
alignment issues).
Backport of 6eaf95cbfa0031ea267682dc2c9c17ed3e3dc167
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ac6d8452be2d582e4a2b14525c839c71b9351991
commit ac6d8452be2d582e4a2b14525c839c71b9351991
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 12:49:45 2014 -0500
PowerPC: remove wrong roundl implementation for PowerPC64
The roundl assembly implementation
(sysdeps/powerpc/powerpc64/fpu/s_roundl.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.
Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).
By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_roundl.c instead fixes the failing math.
This fixes 16707.
Backport of c7de50250367167d8c9f35594b264f6a0af8dd0c
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c5ac422010eb6b384c3b4e45ab0049172f0ad688
commit c5ac422010eb6b384c3b4e45ab0049172f0ad688
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 12:27:52 2014 -0500
PowerPC: remove wrong nearbyintl implementation for PPC64
The nearbyintl assembly implementation
(sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.
Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).
By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c instead fixes the failing
math.
Fixes BZ#16706.
Backport of 98fb27a373f37554232e0060eef1a5bb00a07eb0
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7986a2d12b7ea0653f0366200c703a3905edffd9
commit 7986a2d12b7ea0653f0366200c703a3905edffd9
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 07:35:43 2014 -0500
PowerPC: remove wrong ceill implementation for PowerPC64
The ceill assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_ceill.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.
Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).
By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_ceill.c instead fixes the failing math.
Fixes BZ#16701.
Backport of 374f7f61214967bb4e2257695aeeeecc2a77f369
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a56198dbb21767bde0003d3062d5ec7a8e1279f1
commit a56198dbb21767bde0003d3062d5ec7a8e1279f1
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 12:15:40 2014 -0500
Add truncl tests related to BZ#16414
Backport of 4655c291d1808c35b7c54236ae62be7a3aaa0a2d
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a52b3f7e4c4de8705370adda4b390293780dc768
commit a52b3f7e4c4de8705370adda4b390293780dc768
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Wed Mar 12 08:55:50 2014 -0500
PowerPC: Fix bzero definition for static libc for PPC32
This patch fixes an issue for powerpc32-fpu static build which fails
with an 'bzero' undefined reference. This patch adds bzero ifunc selector
for static builds and fixes the '__bzero_ppc' reference to default
memset symbol (since static memset build does not provide ifunc
selector).
Fixes BZ#16689.
Backport of dd3946c615184e1957a0cb09352cac72be5d6d5b.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=09e09c2872ab52c8a42b907105343520019ca1d1
commit 09e09c2872ab52c8a42b907105343520019ca1d1
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Mar 11 16:17:50 2014 -0500
PowerPC: Fix strspn for static build
This patch makes the strspn ifunc selector build for static builds.
This is a backport of 27c7220a483bda576533aa9a0a9b42175644b1a1
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f510d35c58d16c32ce988d053c9a525b8e38fe47
commit f510d35c58d16c32ce988d053c9a525b8e38fe47
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Mar 10 15:26:20 2014 -0500
PowerPC: Fix bzero definition for static libc for PPC64
This patch fixes an issue for powerpc64[le] static build where __bzero
is definied in multiple places (memset-ppc64.o and bzero.o). It is now
defined only in bzero.o and memset-ppc64.o only defined __bzero_ppc for
both dynamic and static library.
Fixes BZ#16683.
Backport of 4facea473059914983b7da8dd654c06b8e3dcc41
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=afd75351c2f3cae4a2daf88c50faad889e3a0f2b
commit afd75351c2f3cae4a2daf88c50faad889e3a0f2b
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Mon Mar 10 12:20:36 2014 -0400
PowerPC: strspn optimization for PPC64/POWER7
The optimization is achieved by following techniques:
> hashing of needle.
> hashing avoids scanning of duplicate entries in needle across the
string.
> initializing the hash table with Vector instructions (VSX) by quadword
access.
> unrolling when scanning for character in string across hash table.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e5829d82c88117c9f4752cedfefc8516cb9ffdf7
commit e5829d82c88117c9f4752cedfefc8516cb9ffdf7
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 7 06:09:47 2014 -0600
PowerPC: strncat optimization for PPC64
The optimization is achieved by following techniques:
1. Doubleword aligned memory access and compares using
cmpb instruction.
2. Loop unrolling for byte load/store.
3. CPU pre-fetch to avoid cache miss.
Backport of ba9cc0714e58a9e8fa73cf6b0e205cbf1e6b71f2
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e032058ea756e396c4ed1395a44d8b321e370b2f
commit e032058ea756e396c4ed1395a44d8b321e370b2f
Author: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Mon Mar 3 08:06:41 2014 -0600
PowerPC: strrchr optimization for POWER7/PPC64
This patch optimizes strrchr() for ppc64. It uses aligned memory
access along with cmpb instruction and CPU prefetch to avoid
cache misses for speed improvement.
Backport of c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=54dd35c59cda5f59c2f3ae783468da4b94f30dff
commit 54dd35c59cda5f59c2f3ae783468da4b94f30dff
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Feb 17 10:44:08 2014 -0600
PowerPC: llround/llroundf POWER8 optimization
This patch add a optimized llround/llroundf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport fe13a20c37578f08ce393ccaeb45caeb48815ca5
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b34f8e9fcd1274e69a9a59a28c270e2cada39c95
commit b34f8e9fcd1274e69a9a59a28c270e2cada39c95
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Feb 18 09:29:29 2014 -0500
PowerPC: llrint/llrintf POWER8 optimization
This patch add a optimized llrint/llrintf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of 1ad8950a3ea4056ed343d681b5146f4b4aa27e10
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c3241bcd73c47d2bcd2a5ffe84a21d4853c8c938
commit c3241bcd73c47d2bcd2a5ffe84a21d4853c8c938
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Feb 27 09:46:46 2014 -0600
PowerPC: Optimized finite/finitef for POWER8
This patch add a optimized finite/finitef implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of cac626d60a863e48ab75417064984769e58c5719.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1cd3b05dda2dab30cb7658193cb1af8f594f52f3
commit 1cd3b05dda2dab30cb7658193cb1af8f594f52f3
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Feb 27 09:45:41 2014 -0600
PowerPC: Optimized isinf/isinff for POWER8
This patch add a optimized isinf/isinff implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of 4393fc119c34e97519b9b7a4fc94066b283be452
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=65c8daedb68b74eae860f91dca226215cd80e348
commit 65c8daedb68b74eae860f91dca226215cd80e348
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Feb 27 09:43:51 2014 -0600
PowerPC: Optimized isnan/isnanf for POWER8
This patch add a optimized isnan/isnanf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of 487972aea52004f604c2878c8c9d3e77670f2c32
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=55e71ccf31c29a7839344f03e0a7437ea0f5f211
commit 55e71ccf31c29a7839344f03e0a7437ea0f5f211
Author: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Date: Fri Nov 15 07:44:20 2013 -0600
Partially revert commit 2663b74f8103a2a8a46b4896439b7a452480fc7c
This change is necessary in order to avoid the issue documented at
http://sourceware.org/ml/libc-alpha/2013-05/msg00350.html.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fbed4f13980bf4ebd7df59b0e52bd2a16875f0db
commit fbed4f13980bf4ebd7df59b0e52bd2a16875f0db
Author: Ryan S. Arnold <rsa@linux.vnet.ibm.com>
Date: Fri Nov 15 07:42:33 2013 -0600
Remove assert() if DT_RUNPATH and DT_RPATH flags are found in ld.so.
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2014-03-22 9:40 [Bug math/16739] New: IBM long double nextafterl wrong on power of two value amodra at gmail dot com
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2015-01-16 17:03 ` cvs-commit at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2015-02-23 14:23 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16739
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the project "GNU C Library master sources".
The branch, ibm/2.19/master has been created
at b5faf032c4c6a2260a9a93d8d4df611caa8b54cc (commit)
- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b5faf032c4c6a2260a9a93d8d4df611caa8b54cc
commit b5faf032c4c6a2260a9a93d8d4df611caa8b54cc
Author: Paul Pluzhnikov <ppluzhnikov@google.com>
Date: Fri Feb 6 00:30:42 2015 -0500
CVE-2015-1472: wscanf allocates too little memory
BZ #16618
Under certain conditions wscanf can allocate too little memory for the
to-be-scanned arguments and overflow the allocated buffer. The
implementation now correctly computes the required buffer size when
using malloc.
A regression test was added to tst-sscanf.
Conflicts:
ChangeLog
NEWS
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=88a8a351f3a6a95205a1499fd68b79fc3d0b9d19
commit 88a8a351f3a6a95205a1499fd68b79fc3d0b9d19
Author: Carlos O'Donell <carlos@redhat.com>
Date: Wed Nov 19 11:44:12 2014 -0500
CVE-2014-7817: wordexp fails to honour WRDE_NOCMD.
The function wordexp() fails to properly handle the WRDE_NOCMD
flag when processing arithmetic inputs in the form of "$((... ``))"
where "..." can be anything valid. The backticks in the arithmetic
epxression are evaluated by in a shell even if WRDE_NOCMD forbade
command substitution. This allows an attacker to attempt to pass
dangerous commands via constructs of the above form, and bypass
the WRDE_NOCMD flag. This patch fixes this by checking for WRDE_NOCMD
in exec_comm(), the only place that can execute a shell. All other
checks for WRDE_NOCMD are superfluous and removed.
We expand the testsuite and add 3 new regression tests of roughly
the same form but with a couple of nested levels.
On top of the 3 new tests we add fork validation to the WRDE_NOCMD
testing. If any forks are detected during the execution of a wordexp()
call with WRDE_NOCMD, the test is marked as failed. This is slightly
heuristic since vfork might be used in the future, but it provides a
higher level of assurance that no shells were executed as part of
command substitution with WRDE_NOCMD in effect. In addition it doesn't
require libpthread or libdl, instead we use the public implementation
namespace function __register_atfork (already part of the public ABI
for libpthread).
Tested on x86_64 with no regressions.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=32404a33a03747951daafde164e3b14464c28fe9
commit 32404a33a03747951daafde164e3b14464c28fe9
Author: Allan McRae <allan@archlinux.org>
Date: Thu Dec 18 11:01:43 2014 +1000
Label CVE-2014-9402 in NEWS
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d2a6f3a27b791d91beec2ea91f293ec898080904
commit d2a6f3a27b791d91beec2ea91f293ec898080904
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Dec 15 17:41:13 2014 +0100
Avoid infinite loop in nss_dns getnetbyname [BZ #17630]
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=39700792d4224af99ab52ea26e98a0a2a2ed6ac6
commit 39700792d4224af99ab52ea26e98a0a2a2ed6ac6
Author: Jeff Law <law@redhat.com>
Date: Mon Dec 15 10:09:32 2014 +0100
CVE-2012-3406: Stack overflow in vfprintf [BZ #16617]
A larger number of format specifiers coudld cause a stack overflow,
potentially allowing to bypass _FORTIFY_SOURCE format string
protection.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5cefe3fc8f35b50eb84cbb740268539a40651173
commit 5cefe3fc8f35b50eb84cbb740268539a40651173
Author: Allan McRae <allan@archlinux.org>
Date: Sat Jun 21 17:23:55 2014 +1000
Mention CVE-2014-4043 in NEWS
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=eece504424b59a1d8de7b4da9c64e24acaa6fbe0
commit eece504424b59a1d8de7b4da9c64e24acaa6fbe0
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Jun 11 23:12:52 2014 +0200
posix_spawn_file_actions_addopen needs to copy the path argument (BZ 17048)
POSIX requires that we make a copy, so we allocate a new string
and free it in posix_spawn_file_actions_destroy.
Reported by David Reid, Alex Gaynor, and Glyph Lefkowitz. This bug
may have security implications.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=dcf0cce30d91100005e9aeb002096236325648fb
commit dcf0cce30d91100005e9aeb002096236325648fb
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon May 12 15:24:12 2014 +0200
_nl_find_locale: Improve handling of crafted locale names [BZ #17137]
Prevent directory traversal in locale-related environment variables
(CVE-2014-0475).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a5da5d74ff2e0a6ee267f283be8dbccc92cec59a
commit a5da5d74ff2e0a6ee267f283be8dbccc92cec59a
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Aug 26 19:38:59 2014 +0200
__gconv_translit_find: Disable function [BZ #17187]
This functionality has never worked correctly, and the implementation
contained a security vulnerability (CVE-2014-5119).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e6cbfc1fa2c64cad3c599f419dd154cec5af23cc
commit e6cbfc1fa2c64cad3c599f419dd154cec5af23cc
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Sep 3 19:45:43 2014 +0200
CVE-2014-6040: Crashes on invalid input in IBM gconv modules [BZ #17325]
These changes are based on the fix for BZ #14134 in commit
6e230d11837f3ae7b375ea69d7905f0d18eb79e5.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fa7cc069f4eb29c00ec3a833d73ec4a473b11c8a
commit fa7cc069f4eb29c00ec3a833d73ec4a473b11c8a
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 29 13:56:44 2014 -0500
PowerPC: Fix gprof entry point for LE
This patch fixes the ELFv2 gprof entry point since the ABI
does not define function descriptors. It fixes BZ#17213.
This is a backport of a53fbd8e6cd2f69bdfa3431d616a5f332aea6664.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3c640c4acb9bc2c2cc7fa77d5ce1254953761dc1
commit 3c640c4acb9bc2c2cc7fa77d5ce1254953761dc1
Author: Alan Modra <amodra@gmail.com>
Date: Mon Jul 14 21:14:50 2014 +0930
Correct DT_PPC64_NUM
[BZ #17153]
* elf/elf.h (DT_PPC64_NUM): Correct value.
* NEWS: Add to fixed bug list.
This is a backport of f6c44d475104e931bab2b4ffa499961088de673c.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=957afa3407c426969eaaa348981b9648d5191ae2
commit 957afa3407c426969eaaa348981b9648d5191ae2
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 8 08:54:09 2014 -0500
PowerPC: Cleanup powerpc memmove
Now that MEMCPY_OK_FOR_FWD_MEMMOVE should be define on memcopy.h there
is no need to specialized powerpc memmove implementation. This patch
moves the define set to powerpc memcopy and cleanup its definition on
powerpc code.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8d9513a103bdd202ffa4884bdedc2c3c0dbab210
commit 8d9513a103bdd202ffa4884bdedc2c3c0dbab210
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 8 08:49:54 2014 -0500
PowerPC: Fix compiler warnings
This patch fixes some compiler due trailing data in #undef directives
and due missing prototypes.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b00ec143897f076ecbcedc7369b4b74e0c7f6d14
commit b00ec143897f076ecbcedc7369b4b74e0c7f6d14
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jul 8 08:35:44 2014 -0500
PowerPC: Add ifunc tests for memmove
This patch add the missing ifunc tests definition for memmove ppc32
optimization patch (commit 07aedd7).
This is a backport of 91f4b564bd7bedcd93e7047cad570ce292d6330b.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=565e3d6c8230affd7089bf5ebfcebbf72f32a27c
commit 565e3d6c8230affd7089bf5ebfcebbf72f32a27c
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Wed Jun 25 11:54:31 2014 -0500
PowerPC: Align power7 memcpy using VSX to quadword
This patch changes power7 memcpy to use VSX instructions only when
memory is aligned to quardword. It is to avoid unaligned kernel traps
on non-cacheable memory (for instance, memory-mapped I/O).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6fae3527af330c32399e3a4cdfac3958fc440eb8
commit 6fae3527af330c32399e3a4cdfac3958fc440eb8
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jun 24 08:47:52 2014 -0500
PowerPC: optimized memmove for POWER7/PPC32
This patch adds a optimized memmove for power7 by using the optimized
power7 memcpy for forward copying.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5d55f9b05ecb85b7a543f641829479cfb081f380
commit 5d55f9b05ecb85b7a543f641829479cfb081f380
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Jun 20 12:55:16 2014 -0500
PowerPC: optimized memmove for POWER7/PPC64
This patch adds an optimized memmove optimization for POWER7/powerpc64.
Basically the idea is to use the memcpy for POWER7 on non-overlapped
memory regions and a optimized backward memcpy for memory regions
that overlap (similar to the idea of string/memmove.c).
The backward memcpy algorithm used is similar the one use for memcpy for
POWER7, with adjustments done for alignment. The difference is memory
is always aligned to 16 bytes before using VSX/altivec instructions.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=dde00e9914370ddd90c9bbc4f3f0e455efae4b47
commit dde00e9914370ddd90c9bbc4f3f0e455efae4b47
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Jun 24 06:42:31 2014 -0500
PowerPC: memmove default implementation cleanup
This patch removes the powerpc specific logic in memmove and instead
include default implementation with MEMCPY_OK_FOR_FWD_MEMMOVE defined.
This lead in a increase performance, since the constraints to use
memcpy in powerpc code are too restrictive and memcpy can be used for
any forward memmove.
This is a backport of d6f68bbef4427850c2901728a1d13efc0e687297.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9841a0850ed3be4310ec6b49c3349e39a6f0f481
commit 9841a0850ed3be4310ec6b49c3349e39a6f0f481
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Wed Jun 11 22:21:20 2014 -0500
PowerPC: strcat optimization for PPC64/POWER7
This patch adds an ifunc power7 strcat symbol that uses the logic on
sysdeps/powerpc/strcat.c but call power7 strlen/strcpy symbols instead
of default ones.
This is a backport of bc8ea38590070604006399e42469087e943fc8ec.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ded8852b37f673b8e66163b44f70504dc5af0985
commit ded8852b37f673b8e66163b44f70504dc5af0985
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Jun 23 09:38:47 2014 -0500
PowerPC: sync hwcap.h capabilities
Linux commit dd58a092c4202f2bd490adab7285b3ff77f8e467 added the
PPC_FEATURE2_VEC_CRYPTO auvx capability to indicate whether to
hardware supports vector crypto hardware instructions. This patch
adds its definition to powerpc hwcap bits.
This is a backport of db22400947e1c82153e5270d23fed53fc1e3a659.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7e986751f5c05f3363c01c717972f87a681da0d0
commit 7e986751f5c05f3363c01c717972f87a681da0d0
Author: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Tue Jun 17 08:46:25 2014 -0500
PowerPC: Fix nearbyintl failure for few inputs
This patch fixes few failures in nearbyintl() where the fraction part is
close to 0.5.i The new tests added report few extra failures in
nearbyint_downward and nearbyint_towardzero which is a known issue.
Fixes #17031.
This is a backport of 754c5a08aacb44895d1ab97c553ce424eb43f761.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2289a56644fc05786e2d5637c76d47afea7d38b9
commit 2289a56644fc05786e2d5637c76d47afea7d38b9
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Fri Jun 6 07:56:07 2014 -0500
PowerPC: Optimized strcmp for PPC64/POWER7
Optimization is achieved on 8 byte aligned strings with double word
comparison using cmpb instruction. On unaligned strings loop unrolling
is applied for Power7 gain.
It is a backport of e23d3d2690bf63207b1a47e83a94693daebbbfe5.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=010c023685495f4cd907b7bf7d15375edcbe1ead
commit 010c023685495f4cd907b7bf7d15375edcbe1ead
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Jun 6 09:37:07 2014 -0500
PowerPC: Fix optimized strncat strlen call
This patch fixes the optimized ppc64/power7 strncat strlen call for
static build without ifunc enabled. The strlen symbol to call in such
situation is just strlen, instead of __GI_strlen (since the __GI_
alias is just created for shared objects).
It is a backport of ed36bfa18faf9be457575568e64b8409e46caa22.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6f0aba1acab171bd853905b66c551336aa0adcf9
commit 6f0aba1acab171bd853905b66c551336aa0adcf9
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Apr 8 17:25:14 2014 -0500
PowerPC: Fix --disable-multi-arch builds
This patch fixes some powerpc32 and powerpc64 builds with
--disable-multi-arch option along with different --with-cpu=powerN.
It cleanups the Implies directories by removing the multiarch
folder for non multiarch config and also fixing two assembly
implementations: powerpc64/power7/strncat.S that is calling the
wrong strlen; and power8/fpu/s_isnan.S that misses the hidden_def and
weak_alias directives.
It is a backport of de21c33c068c8e39afb5711613a7c083c11ce6a1.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e40df8c4677611afc48601472675593dfd087e4b
commit e40df8c4677611afc48601472675593dfd087e4b
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu May 22 14:48:38 2014 -0500
PowerPC: Remove 64 bits instructions in PPC32 code
This patch replaces the insrdi by insrwi in powerpc32 assembly.
It is a backport of d298c41635ce7f2dc7c3eccc842fe3aa754c0c8e.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a448439dfffc0878121e0941be9717e05786b1fe
commit a448439dfffc0878121e0941be9717e05786b1fe
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu May 22 07:53:44 2014 -0500
PowerPC: Fix memchr ifunc hidden symbol for PPC32
This patch fixes a similar issue to
736c304a1ab4cee36a2f3343f1698bc0abae4608, where for PPC32 if the symbol
is defined as hidden (memchr) then compiler will create a local branc
(symbol@local) and the linker will not create a required PLT call to
make the ifunc work. It changes the default hidden symbol (__GI_memchr)
to default memchr symbol for powerpc32 (__memchr_ppc32).
Backport of 3d2badacf185fac740a2992240a817fb2ca325af.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c725f80591aa98c5c0270feb80e857c5943c861a
commit c725f80591aa98c5c0270feb80e857c5943c861a
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon May 19 17:56:55 2014 -0500
PowerPC: Fix multiarch hypotf PPC64 path
This patch moves the hypotf multiarch implementation to correct path.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1db8c8c873e6112ee4ecddf1eff54f4abaab91a7
commit 1db8c8c873e6112ee4ecddf1eff54f4abaab91a7
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Mon May 5 19:10:45 2014 -0500
PowerPC: strncpy/stpncpy optimization for PPC64/POWER7
The optimization is achieved by following techniques:
> data alignment [gain from aligned memory access on read/write]
> POWER7 gains performance with loop unrolling/unwinding
[gain by reduction of branch penalty].
> zero padding done by calling optimized memset
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=08111251bbd7275024d9c945f442f61b06d98910
commit 08111251bbd7275024d9c945f442f61b06d98910
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri May 2 12:00:36 2014 -0500
PowerPC: ifunc improvement for internal calls
This patch changes de default symbol redirection for internal call of
memcpy, memset, memchr, and strlen to the IFUNC resolved ones. The
performance improvement is noticeable in algorithms that uses these
symbols extensible, like the regex functions.
This is a backport of 19c4bec0f43599eecc2f32de96ae179cd7d64053.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a8050d789589b73e7908b806d5c929facf76cc6b
commit a8050d789589b73e7908b806d5c929facf76cc6b
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 16 19:33:32 2014 +0930
Correct IBM long double frexpl.
Besides fixing the bugzilla, this also fixes corner-cases where the high
and low double differ greatly in magnitude, and handles a denormal
input without resorting to a fp rescale.
[BZ #16740]
[BZ #16619]
* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Rewrite.
* math/libm-test.inc (frexp_test_data): Add tests.
Backport of aa5f0ff11ad2cc85277c64cf65c723a9664e1149 and
9860b0450275ad2b69cb9360fd01d5c122a65fc5.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=154d4d95f48061d5ab890c85b6015221c1accc6e
commit 154d4d95f48061d5ab890c85b6015221c1accc6e
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Sun Apr 6 14:50:11 2014 -0500
PowerPC: Fix nearbyint/nearbyintf result for FE_DOWNWARD
This patch fixes the powerpc32 optimized nearbyint/nearbyintf bogus
results for FE_DOWNWARD rounding mode. This is due wrong instructions
sequence used in the rounding calculation (two subtractions instead of
adition and a subtraction).
Fixes BZ#16815.
Backport of 8bd70862e11023e7f827f240a5a214f847ae982d.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e266b71770050a4d0cb276f4afea1c5b05215184
commit e266b71770050a4d0cb276f4afea1c5b05215184
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:46:19 2014 +1030
Correct IBM long double nextafterl.
Fix for values near a power of two, and some tidies.
[BZ #16739]
* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Correct
output when value is near a power of two. Use int64_t for lx and
remove casts. Use decimal rather than hex exponent constants.
Don't use long double multiplication when double will suffice.
* math/libm-test.inc (nextafter_test_data): Add tests.
* NEWS: Add 16739 and 16786 to bug list.
Backport of b0abbc21034f0e5edc49023d8fda0616173faf17.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b23fc92895aff0ce3d3134a91adaa253bffd187a
commit b23fc92895aff0ce3d3134a91adaa253bffd187a
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:42:27 2014 +1030
Correct prefetch hint in power7 memrchr.
Typo fix.
* sysdeps/powerpc/powerpc64/power7/memrchr.S: Correct stream hint.
Backport of af6b17973cbc07ac06cfb40eeab5cc2391fb489a.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=acd56f757b4e5ab8737b9564bd7a4ad1009acd8d
commit acd56f757b4e5ab8737b9564bd7a4ad1009acd8d
Author: Alan Modra <amodra@gmail.com>
Date: Wed Apr 2 13:40:21 2014 +1030
Fix reference to toc symbol.
https://sourceware.org/ml/binutils/2014-03/msg00033.html removes the
"magic" treatment of symbols defined in a .toc section.
* sysdeps/powerpc/powerpc64/start.S: Add @toc to toc symbol reference.
Backport of 483818d768ed99a5edf4114298a75ebedaee8d5c.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fd5100c480beef3d36c4bf74b6a23529695d036c
commit fd5100c480beef3d36c4bf74b6a23529695d036c
Author: Alan Modra <amodra@gmail.com>
Date: Tue Apr 1 14:07:42 2014 +1030
Fix s_copysign stack temp for PowerPC64 ELFv2
[BZ #16786]
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Don't trash stack.
Backport of c859b32e9d76afe8a3f20bb9528961a573c06937.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a51aafa398ed7dd2a0a846c1b2ed8a37909609eb
commit a51aafa398ed7dd2a0a846c1b2ed8a37909609eb
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Mar 31 08:07:55 2014 -0500
PowerPC: Fix little endian enconding for mfvsrd
This patch fixes the MFVSRD_R3_V1 macro that encodes 'mfvsrd r3,vs1'
(to support old binutils) for little endian.
Backport of 757d9dd5c3efa56fac75965abc014faaae7b7895.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=62caa3eed2a154a61a01df3a5f3dde3ff400f4d4
commit 62caa3eed2a154a61a01df3a5f3dde3ff400f4d4
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Mar 20 15:28:07 2014 -0500
PowerPC: optimized strpbrk for POWER7
This patch add an optimized strpbrk for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance on
the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and memory
clear using VSX instructions.
Backport of 6f23d0939e9651d8ac3c77a835fb6464b35a1dc4
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c0afc58657f482f4c31ccade06e7b059e761186c
commit c0afc58657f482f4c31ccade06e7b059e761186c
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Mar 20 11:24:52 2014 -0500
PowerPC: optimized strcspn for PPC64/POWER7
This patch add a optimized strcspn for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance
on the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and align
stack memory to table to 16 bytes (so VSX clean can ran without
alignment issues).
Backport of 6eaf95cbfa0031ea267682dc2c9c17ed3e3dc167
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ac6d8452be2d582e4a2b14525c839c71b9351991
commit ac6d8452be2d582e4a2b14525c839c71b9351991
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 12:49:45 2014 -0500
PowerPC: remove wrong roundl implementation for PowerPC64
The roundl assembly implementation
(sysdeps/powerpc/powerpc64/fpu/s_roundl.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.
Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).
By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_roundl.c instead fixes the failing math.
This fixes 16707.
Backport of c7de50250367167d8c9f35594b264f6a0af8dd0c
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c5ac422010eb6b384c3b4e45ab0049172f0ad688
commit c5ac422010eb6b384c3b4e45ab0049172f0ad688
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 12:27:52 2014 -0500
PowerPC: remove wrong nearbyintl implementation for PPC64
The nearbyintl assembly implementation
(sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.
Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).
By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c instead fixes the failing
math.
Fixes BZ#16706.
Backport of 98fb27a373f37554232e0060eef1a5bb00a07eb0
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7986a2d12b7ea0653f0366200c703a3905edffd9
commit 7986a2d12b7ea0653f0366200c703a3905edffd9
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 07:35:43 2014 -0500
PowerPC: remove wrong ceill implementation for PowerPC64
The ceill assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_ceill.S)
returns wrong results for some inputs where first double is a exact
integer and the precision is determined by second long double.
Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).
By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_ceill.c instead fixes the failing math.
Fixes BZ#16701.
Backport of 374f7f61214967bb4e2257695aeeeecc2a77f369
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a56198dbb21767bde0003d3062d5ec7a8e1279f1
commit a56198dbb21767bde0003d3062d5ec7a8e1279f1
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 14 12:15:40 2014 -0500
Add truncl tests related to BZ#16414
Backport of 4655c291d1808c35b7c54236ae62be7a3aaa0a2d
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a52b3f7e4c4de8705370adda4b390293780dc768
commit a52b3f7e4c4de8705370adda4b390293780dc768
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Wed Mar 12 08:55:50 2014 -0500
PowerPC: Fix bzero definition for static libc for PPC32
This patch fixes an issue for powerpc32-fpu static build which fails
with an 'bzero' undefined reference. This patch adds bzero ifunc selector
for static builds and fixes the '__bzero_ppc' reference to default
memset symbol (since static memset build does not provide ifunc
selector).
Fixes BZ#16689.
Backport of dd3946c615184e1957a0cb09352cac72be5d6d5b.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=09e09c2872ab52c8a42b907105343520019ca1d1
commit 09e09c2872ab52c8a42b907105343520019ca1d1
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Mar 11 16:17:50 2014 -0500
PowerPC: Fix strspn for static build
This patch makes the strspn ifunc selector build for static builds.
This is a backport of 27c7220a483bda576533aa9a0a9b42175644b1a1
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f510d35c58d16c32ce988d053c9a525b8e38fe47
commit f510d35c58d16c32ce988d053c9a525b8e38fe47
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Mar 10 15:26:20 2014 -0500
PowerPC: Fix bzero definition for static libc for PPC64
This patch fixes an issue for powerpc64[le] static build where __bzero
is definied in multiple places (memset-ppc64.o and bzero.o). It is now
defined only in bzero.o and memset-ppc64.o only defined __bzero_ppc for
both dynamic and static library.
Fixes BZ#16683.
Backport of 4facea473059914983b7da8dd654c06b8e3dcc41
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=afd75351c2f3cae4a2daf88c50faad889e3a0f2b
commit afd75351c2f3cae4a2daf88c50faad889e3a0f2b
Author: Vidya Ranganathan <vidya@linux.vnet.ibm.com>
Date: Mon Mar 10 12:20:36 2014 -0400
PowerPC: strspn optimization for PPC64/POWER7
The optimization is achieved by following techniques:
> hashing of needle.
> hashing avoids scanning of duplicate entries in needle across the
string.
> initializing the hash table with Vector instructions (VSX) by quadword
access.
> unrolling when scanning for character in string across hash table.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e5829d82c88117c9f4752cedfefc8516cb9ffdf7
commit e5829d82c88117c9f4752cedfefc8516cb9ffdf7
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Mar 7 06:09:47 2014 -0600
PowerPC: strncat optimization for PPC64
The optimization is achieved by following techniques:
1. Doubleword aligned memory access and compares using
cmpb instruction.
2. Loop unrolling for byte load/store.
3. CPU pre-fetch to avoid cache miss.
Backport of ba9cc0714e58a9e8fa73cf6b0e205cbf1e6b71f2
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e032058ea756e396c4ed1395a44d8b321e370b2f
commit e032058ea756e396c4ed1395a44d8b321e370b2f
Author: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Mon Mar 3 08:06:41 2014 -0600
PowerPC: strrchr optimization for POWER7/PPC64
This patch optimizes strrchr() for ppc64. It uses aligned memory
access along with cmpb instruction and CPU prefetch to avoid
cache misses for speed improvement.
Backport of c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=54dd35c59cda5f59c2f3ae783468da4b94f30dff
commit 54dd35c59cda5f59c2f3ae783468da4b94f30dff
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon Feb 17 10:44:08 2014 -0600
PowerPC: llround/llroundf POWER8 optimization
This patch add a optimized llround/llroundf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport fe13a20c37578f08ce393ccaeb45caeb48815ca5
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b34f8e9fcd1274e69a9a59a28c270e2cada39c95
commit b34f8e9fcd1274e69a9a59a28c270e2cada39c95
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue Feb 18 09:29:29 2014 -0500
PowerPC: llrint/llrintf POWER8 optimization
This patch add a optimized llrint/llrintf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of 1ad8950a3ea4056ed343d681b5146f4b4aa27e10
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c3241bcd73c47d2bcd2a5ffe84a21d4853c8c938
commit c3241bcd73c47d2bcd2a5ffe84a21d4853c8c938
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Feb 27 09:46:46 2014 -0600
PowerPC: Optimized finite/finitef for POWER8
This patch add a optimized finite/finitef implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of cac626d60a863e48ab75417064984769e58c5719.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1cd3b05dda2dab30cb7658193cb1af8f594f52f3
commit 1cd3b05dda2dab30cb7658193cb1af8f594f52f3
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Feb 27 09:45:41 2014 -0600
PowerPC: Optimized isinf/isinff for POWER8
This patch add a optimized isinf/isinff implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of 4393fc119c34e97519b9b7a4fc94066b283be452
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=65c8daedb68b74eae860f91dca226215cd80e348
commit 65c8daedb68b74eae860f91dca226215cd80e348
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Thu Feb 27 09:43:51 2014 -0600
PowerPC: Optimized isnan/isnanf for POWER8
This patch add a optimized isnan/isnanf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Backport of 487972aea52004f604c2878c8c9d3e77670f2c32
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=55e71ccf31c29a7839344f03e0a7437ea0f5f211
commit 55e71ccf31c29a7839344f03e0a7437ea0f5f211
Author: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Date: Fri Nov 15 07:44:20 2013 -0600
Partially revert commit 2663b74f8103a2a8a46b4896439b7a452480fc7c
This change is necessary in order to avoid the issue documented at
http://sourceware.org/ml/libc-alpha/2013-05/msg00350.html.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fbed4f13980bf4ebd7df59b0e52bd2a16875f0db
commit fbed4f13980bf4ebd7df59b0e52bd2a16875f0db
Author: Ryan S. Arnold <rsa@linux.vnet.ibm.com>
Date: Fri Nov 15 07:42:33 2013 -0600
Remove assert() if DT_RUNPATH and DT_RPATH flags are found in ld.so.
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