Yury Usishchev [Fri, 26 Jun 2015 14:10:21 +0000 (17:10 +0300)]
Add .cantunwind to _dl_start_user
Unwinding using unwind tables failed when _dl_start_user is encountered.
This caused segmentation fault in address sanitizer initialization.
Change-Id: I7d26126ffd85ba526e400ea50ed35a68cb467c6e
Signed-off-by: Yury Usishchev <y.usishchev@samsung.com>
Vyacheslav Barinov [Thu, 28 May 2015 14:47:22 +0000 (17:47 +0300)]
Restoring usual unwind tables
During check in submit/tizen/
20150430.093651 asyncronous unwind tables shown
as incompatible with Tizen arm-wayland build.
So restoring usual unwind tables.
Change-Id: Ibe58d92e73356b15f54bbae2364aab36b5388876
Signed-off-by: Vyacheslav Barinov <v.barinov@samsung.com>
Vyacheslav Barinov [Wed, 29 Apr 2015 07:14:14 +0000 (10:14 +0300)]
glibc must be built with unwind tables to prevent SIGSEGV in gcc unwinding
Some objects are forced to build with unwind tables by glibc build system
to support exceptions and when some objects are built without them tables become
malformed and cause SIGSEGV inside libgcc unwinding function.
Change-Id: I8e59cca874dfc6c17c344bd3d972d3b7e0f0163a
Signed-off-by: Vyacheslav Barinov <v.barinov@samsung.com>
Dongkyun, Son [Mon, 20 Apr 2015 05:54:40 +0000 (14:54 +0900)]
Lie about futex_atomic_cmpxchg_inatomic kernel support.
In past versions of glibc, we incorrectly assumed all ARM kernels
in all configurations supported futex_atomic_cmpxchg_inatomic. This
was clearly a lie, however it was a lie that we relied on, because
the fallback implementation appears to not play nicely with certain
applications like pulseaudio. Restore the lie for kernels > 2.6.32
and plug our ears and scream "LA LA LA" about how wrong this is.
Author: Adam Conrad <adconrad@ubuntu.com>
Bug-Ubuntu: https://launchpad.net/bugs/1436162
Last-Update: 2015-03-25
Change-Id: I9c2bfb363520ac86d5d66cedd013e32c95f05bc5
Signed-off-by: Dongkyun, Son <dongkyun.s@samsung.com>
Vyacheslav Barinov [Thu, 12 Feb 2015 08:55:37 +0000 (11:55 +0300)]
Fix sse-enabled build
Build both with -msse and -Werror causes
cc1: all warnings being treated as errors
dl-runtime.c:1:0: error: SSE instruction set disabled, using 387 arithmetics [-Werror]
Change-Id: I4f62d652d12dd5b611e2ea51b03601abd2234385
Signed-off-by: Vyacheslav Barinov <v.barinov@samsung.com>
Vyacheslav Barinov [Mon, 9 Feb 2015 13:42:31 +0000 (16:42 +0300)]
packaging: update version to 2.21
Change-Id: I03ef1e71b68749c6a202037c16d2b19e42a91467
Signed-off-by: Vyacheslav Barinov <v.barinov@samsung.com>
Vyacheslav Barinov [Tue, 9 Sep 2014 06:27:34 +0000 (10:27 +0400)]
Addons fix
nptl is not an add-on for x86 - it's an integral glibc part
ports is not an addon for arm and aarch64
https://sourceware.org/glibc/wiki/Release/2.20
Change-Id: If1e460650ed6c349dd594109e0fd37306bc59c9f
Signed-off-by: Vyacheslav Barinov <v.barinov@samsung.com>
Chanho Park [Tue, 9 Sep 2014 03:47:07 +0000 (12:47 +0900)]
packaging: update version to 2.20
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Chanho Park [Fri, 1 Aug 2014 08:46:34 +0000 (17:46 +0900)]
packaging: remove not found file during packing
exclude packing below files
/usr/lib64/libSegFault.so
/usr/lib64/libbsd-compat.a
Change-Id: I7aa90a5835ac028c998f9ed3e1b979e159ab3788
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Chanho Park [Tue, 8 Jul 2014 13:26:32 +0000 (22:26 +0900)]
packaging: update version to 2.19
Change-Id: Ic31ffbbe3891deca8f06973a3000136d563bb926
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Jacek Bukarewicz [Tue, 15 Oct 2013 13:20:17 +0000 (15:20 +0200)]
Subpackage reorganization - devel-utils package
Utils subpackage has been renamed to devel-utils which now
includes additional binaries from base and -devel packages
Change-Id: Ib5cfa030921e067c1278db530045fec8412e7534
Signed-off-by: Jacek Bukarewicz <j.bukarewicz@samsung.com>
Anas Nashif [Mon, 26 Aug 2013 19:14:47 +0000 (15:14 -0400)]
Update change log
Anas Nashif [Tue, 13 Aug 2013 03:30:53 +0000 (23:30 -0400)]
Update to 2.18
Anas Nashif [Thu, 1 Aug 2013 20:26:02 +0000 (16:26 -0400)]
fixed groups
Junfeng Dong [Mon, 8 Jul 2013 08:06:49 +0000 (16:06 +0800)]
No ld-linux-armhf.so.3 on armv7l architecture.
Change-Id: I1dc51b72a25866e514163239fca92a0d48adc001
Signed-off-by: Junfeng Dong <junfeng.dong@intel.com>
Alexandru Cornea [Fri, 28 Jun 2013 20:30:40 +0000 (23:30 +0300)]
resetting manifest requested domain to floor
Anas Nashif [Fri, 22 Mar 2013 17:50:41 +0000 (10:50 -0700)]
Fixed package groups
Anas Nashif [Tue, 15 Jan 2013 13:15:02 +0000 (05:15 -0800)]
do not provide /usr/lib/locale
Anas Nashif [Tue, 15 Jan 2013 13:14:51 +0000 (05:14 -0800)]
do not provide /usr/lib/locale
Anas Nashif [Tue, 15 Jan 2013 05:23:10 +0000 (21:23 -0800)]
require /usr/bin/cat
Anas Nashif [Mon, 14 Jan 2013 16:56:03 +0000 (08:56 -0800)]
Update to 2.17
Anas Nashif [Mon, 14 Jan 2013 14:02:35 +0000 (06:02 -0800)]
disable exceptions
Anas Nashif [Fri, 11 Jan 2013 04:26:28 +0000 (20:26 -0800)]
update to 2.17
Anas Nashif [Thu, 27 Dec 2012 00:40:40 +0000 (16:40 -0800)]
cleanup spec
Anas Nashif [Mon, 24 Dec 2012 02:51:35 +0000 (18:51 -0800)]
fixed inlining and opt flags
Anas Nashif [Mon, 24 Dec 2012 02:42:25 +0000 (18:42 -0800)]
dont depend on selinux
Anas Nashif [Mon, 24 Dec 2012 02:38:56 +0000 (18:38 -0800)]
add packaging
Anas Nashif [Mon, 24 Dec 2012 02:26:15 +0000 (18:26 -0800)]
Fix LD_PROFILE
glibc bug#13818
Anas Nashif [Mon, 24 Dec 2012 02:23:17 +0000 (18:23 -0800)]
armhf compatibility
Patch for elf/dl-load.c taken from Debian:
For backward compatibility with armhf binaries built with the
old linker SONAME, we need to fake out the linker to believe
the new is the old, until such a point as everything is rebuilt.
Anas Nashif [Mon, 24 Dec 2012 02:21:16 +0000 (18:21 -0800)]
Make --no-archive default for localedef - kukuk@suse.de
Anas Nashif [Mon, 24 Dec 2012 02:20:14 +0000 (18:20 -0800)]
adjust nscd.conf
Anas Nashif [Mon, 24 Dec 2012 02:19:37 +0000 (18:19 -0800)]
Use /var/db for nss_db
Carlos O'Donell [Fri, 6 Feb 2015 06:19:42 +0000 (01:19 -0500)]
Update version.h and include/features.h for 2.21 release
Carlos O'Donell [Fri, 6 Feb 2015 06:56:35 +0000 (01:56 -0500)]
hppa: Sync with pthread.h.
This reverts part of the previous commit to refactor pthread.h.
The refactoring must be done by having pthread.h include arch
bits headers, not the other way around. Then hppa provides the
arch bits header. For now we synchronzie again with pthread.h
and include the entire contents in the hppa copy.
Paul Pluzhnikov [Fri, 6 Feb 2015 05:30:42 +0000 (00:30 -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.
Carlos O'Donell [Fri, 6 Feb 2015 03:56:00 +0000 (22:56 -0500)]
glibc 2.21 pre-release update.
Update all translations.
Update contributions in the manual.
Update installation notes with information about newest working tools.
Reconfigure using exactly autoconf 2.69.
Regenerate INSTALL.
Carlos O'Donell [Fri, 6 Feb 2015 02:33:03 +0000 (21:33 -0500)]
hppa: Remove warnings and fix conformance errors.
(1) Fix warnings.
This is a bulk update to fix all the warnings that were causing
build failures with -Werror on hppa.
The most egregious problems are in dl-fptr.c which needs to be
entirely rewritten, thus I've used -Wno-error for that.
(2) Fix conformance errors.
The sysdep.c file had __syscall_error and syscall in one file
which caused conformance issues by including syscall when
__syscall_error was linked to. The fix is obviously to split
the file and use syscall.c to implement syscall.
Chung-Lin Tang [Thu, 5 Feb 2015 14:19:36 +0000 (06:19 -0800)]
Function name typo error in non-PIC case, fixed in this patch.
David S. Miller [Sun, 1 Feb 2015 03:07:28 +0000 (19:07 -0800)]
Fix two bugs in sparc atomics.
* sysdeps/sparc/sparc32/bits/atomic.h
(__sparc32_atomic_do_unlock24): Put the memory barrier before the
unlock not after it.
(__v9_compare_and_exchange_val_32_acq): Use unions to avoid getting
volatile register usage warnings from the compiler.
David S. Miller [Sun, 1 Feb 2015 02:59:40 +0000 (18:59 -0800)]
Fix sparc semaphore implementation after recent changes.
* sysdeps/sparc/nptl/sem_init.c: Delete.
* sysdeps/sparc/nptl/sem_post.c: Delete.
* sysdeps/sparc/nptl/sem_timedwait.c: Delete.
* sysdeps/sparc/nptl/sem_wait.c: Delete.
* sysdeps/sparc/sparc32/sem_init.c: New file.
* sysdeps/sparc/sparc32/sem_waitcommon.c: New file.
* sysdeps/sparc/sparc32/sem_open.c: Generic nptl version with
padding explicitly initialized.
* sysdeps/sparc/sparc32/sem_post.c: Generic nptl version using
padding for in-semaphore spinlock.
* sysdeps/sparc/sparc32/sem_wait.c: Likewise.
* sysdeps/sparc/sparc32/sem_trywait.c: Delete.
* sysdeps/sparc/sparc32/sem_timedwait.c: Delete.
* sysdeps/sparc/sparc32/sparcv9/sem_init.c: New file.
* sysdeps/sparc/sparc32/sparcv9/sem_open.c: New file.
* sysdeps/sparc/sparc32/sparcv9/sem_post.c: New file.
* sysdeps/sparc/sparc32/sparcv9/sem_waitcommon.c: New file.
* sysdeps/sparc/sparc32/sparcv9/sem_wait.c: Redirect to nptl
version.
* sysdeps/sparc/sparc32/sparcv9/sem_timedwait.c: Delete.
* sysdeps/sparc/sparc32/sparcv9/sem_trywait.c: Delete.
H.J. Lu [Fri, 30 Jan 2015 14:50:20 +0000 (06:50 -0800)]
Use AVX unaligned memcpy only if AVX2 is available
memcpy with unaligned 256-bit AVX register loads/stores are slow on older
processorsl like Sandy Bridge. This patch adds bit_AVX_Fast_Unaligned_Load
and sets it only when AVX2 is available.
[BZ #17801]
* sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features):
Set the bit_AVX_Fast_Unaligned_Load bit for AVX2.
* sysdeps/x86_64/multiarch/init-arch.h (bit_AVX_Fast_Unaligned_Load):
New.
(index_AVX_Fast_Unaligned_Load): Likewise.
(HAS_AVX_FAST_UNALIGNED_LOAD): Likewise.
* sysdeps/x86_64/multiarch/memcpy.S (__new_memcpy): Check the
bit_AVX_Fast_Unaligned_Load bit instead of the bit_AVX_Usable bit.
* sysdeps/x86_64/multiarch/memcpy_chk.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/multiarch/mempcpy.S (__mempcpy): Likewise.
* sysdeps/x86_64/multiarch/mempcpy_chk.S (__mempcpy_chk): Likewise.
* sysdeps/x86_64/multiarch/memmove.c (__libc_memmove): Replace
HAS_AVX with HAS_AVX_FAST_UNALIGNED_LOAD.
* sysdeps/x86_64/multiarch/memmove_chk.c (__memmove_chk): Likewise.
Andreas Schwab [Sun, 25 Jan 2015 10:05:53 +0000 (11:05 +0100)]
Include <signal.h> in sysdeps/nptl/allocrtsig.c
Architectures which don't use hp-timing-common.h don't include <signal.h>
via <sys/param.h>.
Siddhesh Poyarekar [Thu, 29 Jan 2015 05:01:10 +0000 (10:31 +0530)]
Fix up ChangeLog formatting
Siddhesh Poyarekar [Thu, 29 Jan 2015 05:00:09 +0000 (10:30 +0530)]
Initialize nscd stats data [BZ #17892]
The padding bytes in the statsdata struct are not initialized, due to
which valgrind throws a warning:
==11384== Memcheck, a memory error detector
==11384== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==11384== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==11384== Command: nscd -d
==11384==
Fri 25 Apr 2014 10:34:53 AM CEST - 11384: handle_request: request received (Version = 2) from PID 11396
Fri 25 Apr 2014 10:34:53 AM CEST - 11384: GETSTAT
==11384== Thread 6:
==11384== Syscall param socketcall.sendto(msg) points to uninitialised byte(s)
==11384== at 0x4E4ACDC: send (in /lib64/libpthread-2.12.so)
==11384== by 0x11AF6B: send_stats (in /usr/sbin/nscd)
==11384== by 0x112F75: nscd_run_worker (in /usr/sbin/nscd)
==11384== by 0x4E439D0: start_thread (in /lib64/libpthread-2.12.so)
==11384== by 0x599AB6C: clone (in /lib64/libc-2.12.so)
==11384== Address 0x15708395 is on thread 6's stack
Fix the warning by initializing the structure.
Martin Sebor [Thu, 29 Jan 2015 04:07:01 +0000 (21:07 -0700)]
Clarify math/README.libm-test. Add "How to read the test output."
Chris Metcalf [Wed, 28 Jan 2015 19:51:21 +0000 (14:51 -0500)]
tilegx32: set __HAVE_64B_ATOMICS to 0
This is because of alignment issues in the sem_t support.
tilegx32 does in fact support 64-bit atomics and we will need
to revisit this after the 2.21 freeze.
Joseph Myers [Wed, 28 Jan 2015 18:40:35 +0000 (18:40 +0000)]
Disable 64-bit atomics for MIPS n32.
This patch disables use of 64-bit atomics for MIPS n32 to fix the
problems with unaligned semaphores.
Before 64-bit atomics are used for anything for which such alignment
issues do not arise, and before the addition of any new ILP32 ports
with 64-bit semaphores for which the ABI can be set to have the
greater alignment (AARCH64?), a better approach will need to be
established that allows architectures to declare their 64-bit atomics
availability accurately, without doing so causing inappropriate use of
such atomics on unaligned semaphores.
Tested for MIPS n32 that this fixes the nptl/tst-sem3 failure.
* sysdeps/mips/bits/atomic.h [_MIPS_SIM == _ABIN32]
(__HAVE_64B_ATOMICS): Define to 0.
Adhemerval Zanella [Tue, 27 Jan 2015 12:37:10 +0000 (06:37 -0600)]
powerpc: Fix fesetexceptflag [BZ#17885]
This patch fixes a bug introduced by
18f2945ae9216cfc, where it optimizes
the FPSCR set by just issuing a mtfs instruction if new flag is different
from older one. The issue is a typo, where the new flag should the the
new value, instead of the old one.
It fixes BZ#17885.
Adhemerval Zanella [Tue, 27 Jan 2015 18:16:39 +0000 (13:16 -0500)]
powerpc: Fix fsqrt build in libm [BZ#16576]
Some powerpc64 processors (e5500 core for instance) does not provide the
fsqrt instruction, however current check to use in math_private.h is
__WORDSIZE and _ARCH_PWR4 (ISA 2.02). This is patch change it to use
the compiler flag _ARCH_PPCSQ (which is the same condition GCC uses to
decide whether to generate fsqrt instruction).
It fixes BZ#16576.
Andreas Krebbel [Tue, 27 Jan 2015 08:37:04 +0000 (09:37 +0100)]
iconv: Suppress array out of bounds warning.
Andreas Schwab [Sun, 25 Jan 2015 21:31:29 +0000 (22:31 +0100)]
ia64: avoid set-but-not-used warning
Andreas Schwab [Sun, 25 Jan 2015 21:09:05 +0000 (22:09 +0100)]
m68k/coldfire: avoid warning about volatile register variables
Andreas Schwab [Sun, 25 Jan 2015 10:49:50 +0000 (11:49 +0100)]
m68k: fix missing definition of __feraiseexcept
Andreas Schwab [Sun, 25 Jan 2015 09:08:04 +0000 (10:08 +0100)]
m68k: force inlining bswap functions
Bram [Thu, 18 Apr 2013 14:50:49 +0000 (16:50 +0200)]
Fix segmentation fault when LD_LIBRARY_PATH contains only non-existings paths
Adhemerval Zanella [Fri, 23 Jan 2015 16:31:49 +0000 (11:31 -0500)]
powerpc: Fix powerpc64 build failure with binutils 2.22
GLIBC memset optimization for POWER8 uses the '.machine power8'
directive, which is only supported officially on binutils 2.24+. This
causes a build failure on older binutils.
Since the requirement of .machine power8 is to correctly assembly the
'mtvsrd' instruction and it is already handled by the MTVSRD_V1_R4
macro, there is no really needed of using it.
The patch replaces the power8 with power7 for .machine directive.
It fixes BZ#17869.
Adhemerval Zanella [Fri, 23 Jan 2015 16:16:49 +0000 (11:16 -0500)]
powerpc: Fix ifuncmain6pie failure with GCC 4.9
This patch fix the elf/ifuncmain6pie failure when building with GCC
4.9+. For some reason, the compiler removes the branch taken code at
resolve_ifunc (sysdeps/powerpc/powerpc64/dl-machine.h) as dead-code
and thus the testcase fails because the ifunc resolves branches to an
invalid memory location. It fixes by explicit adding a dependency of
value based on odp variable to avoid compiler optimization.
It fixes BZ#17868.
H.J. Lu [Sat, 24 Jan 2015 02:52:45 +0000 (18:52 -0800)]
Also treat model numbers 0x5a/0x5d as Silvermont
H.J. Lu [Sat, 24 Jan 2015 01:27:09 +0000 (17:27 -0800)]
Treat model numbers 0x4a/0x4d as Silvermont
* sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features):
Treat model numbers 0x4a/0x4d as Intel Silvermont architecture.
H.J. Lu [Sat, 24 Jan 2015 00:21:07 +0000 (16:21 -0800)]
Also use uint64_t in __new_sem_wait_fast
H.J. Lu [Fri, 23 Jan 2015 22:48:40 +0000 (14:48 -0800)]
Use uint64_t and (uint64_t) 1 for 64-bit int
This patch replaces unsigned long int and 1UL with uint64_t and
(uint64_t) 1 to support ILP32 targets like x32.
[BZ #17870]
* nptl/sem_post.c (__new_sem_post): Replace unsigned long int
with uint64_t.
* nptl/sem_waitcommon.c (__sem_wait_cleanup): Replace 1UL with
(uint64_t) 1.
(__new_sem_wait_slow): Replace unsigned long int with uint64_t.
Replace 1UL with (uint64_t) 1.
* sysdeps/nptl/internaltypes.h (new_sem): Replace unsigned long
int with uint64_t.
Roland McGrath [Fri, 23 Jan 2015 19:29:02 +0000 (11:29 -0800)]
Add missing libc_hidden_weak to stub if_nameindex, if_freenameindex.
Roland McGrath [Fri, 23 Jan 2015 18:41:37 +0000 (10:41 -0800)]
Add missing libc_hidden_def to stub getrlimit64.
Joseph Myers [Thu, 22 Jan 2015 22:39:26 +0000 (22:39 +0000)]
soft-fp: Use __label__ for all labels within macros.
soft-fp has various macros containing labels and goto statements.
Because label names are function-scoped, this is problematic for using
the same macro more than once within a function, which some
architectures do in the Linux kernel (the soft-fp version there
predates the addition of any of these labels and gotos). This patch
fixes this by using __label__ to make the labels local to the block
with the __label__ declaration.
Tested for powerpc-nofpu that installed stripped shared libraries are
unchanged by this patch.
* soft-fp/op-common.h (_FP_ADD_INTERNAL): Declare labels with
__label__.
(_FP_FMA): Likewise.
(_FP_TO_INT_ROUND): Likewise.
(_FP_FROM_INT): Likewise.
Adhemerval Zanella [Mon, 24 Nov 2014 21:18:26 +0000 (16:18 -0500)]
BZ #16418: Fix powerpc get_clockfreq raciness
This patch fix powerpc __get_clockfreq racy and cancel-safe issues by
dropping internal static cache and by using nocancel file operations.
The vDSO failure check is also removed, since kernel code does not
return an error (it cleans cr0.so bit on function return) and the static
code (to read value /proc) now uses non-cancellable calls.
Carlos O'Donell [Wed, 21 Jan 2015 15:35:31 +0000 (10:35 -0500)]
Update copyright year to 2015 for new files.
Carlos O'Donell [Wed, 21 Jan 2015 15:08:18 +0000 (10:08 -0500)]
tst-getpw: Rewrite.
The test is rewritten to look for the testable conditions and
exit once they are all detected. This prevents the test from
iterating over 2000 UIDs and looking up each one. It speeds up
the test and prevents it from failing if the system under test
has an NSS-based passwd that is slower than the test timeout.
See:
https://sourceware.org/ml/libc-alpha/2015-01/msg00394.html
Marek Polacek [Wed, 21 Jan 2015 11:30:42 +0000 (12:30 +0100)]
Fix tst_wcscpy.c test.
Carlos O'Donell [Wed, 21 Jan 2015 06:51:10 +0000 (01:51 -0500)]
Fix recursive dlopen.
The ability to recursively call dlopen is useful for malloc
implementations that wish to load other dynamic modules that
implement reentrant/AS-safe functions to use in their own
implementation.
Given that a user malloc implementation may be called by an
ongoing dlopen to allocate memory the user malloc
implementation interrupts dlopen and if it calls dlopen again
that's a reentrant call.
This patch fixes the issues with the ld.so.cache mapping
and the _r_debug assertion which prevent this from working
as expected.
See:
https://sourceware.org/ml/libc-alpha/2014-12/msg00446.html
Carlos O'Donell [Wed, 21 Jan 2015 05:46:16 +0000 (00:46 -0500)]
Fix semaphore destruction (bug 12674).
This commit fixes semaphore destruction by either using 64b atomic
operations (where available), or by using two separate fields when only
32b atomic operations are available. In the latter case, we keep a
conservative estimate of whether there are any waiting threads in one
bit of the field that counts the number of available tokens, thus
allowing sem_post to atomically both add a token and determine whether
it needs to call futex_wake.
See:
https://sourceware.org/ml/libc-alpha/2014-12/msg00155.html
Carlos O'Donell [Wed, 21 Jan 2015 03:25:38 +0000 (22:25 -0500)]
Regenerate INSTALL.
Carlos O'Donell [Wed, 21 Jan 2015 03:18:11 +0000 (22:18 -0500)]
Update libc.pot:
In preparation for providing a tarball to the translation project.
* po/libc.pot: Regenerated.
Chung-Lin Tang [Sun, 18 Jan 2015 06:29:12 +0000 (22:29 -0800)]
Commit nios2 port to master.
Stefan Liebler [Fri, 16 Jan 2015 08:18:58 +0000 (09:18 +0100)]
S390: Get rid of linknamespace failures for utmp functions.
Stefan Liebler [Fri, 16 Jan 2015 08:17:32 +0000 (09:17 +0100)]
S390: Get rid of linknamespace failures for string functions.
Joseph Myers [Wed, 14 Jan 2015 21:35:40 +0000 (21:35 +0000)]
Fix powerpc-nofpu fesetenv namespace (bug 17748).
When fixing namespace issues for <fenv.h> functions I missed one call
to fesetenv for powerpc-nofpu. This patch changes this to a call to
__fesetenv.
Tested for powerpc-nofpu; it fixes the previously observed math.h
linknamespace test failures.
[BZ #17748]
* sysdeps/powerpc/nofpu/feholdexcpt.c (__feholdexcept): Call
__fesetenv instead of fesetenv.
Siddhesh Poyarekar [Wed, 14 Jan 2015 15:56:50 +0000 (21:26 +0530)]
[s390] Define a __tls_get_addr macro to avoid declaring it again
commit
050f7298e1ecc39887c329037575ccd972071255 added an extern
declaration for __tls_get_addr that conflicts with the one in s390
dl-tls.h, based on whether __tls_get_addr is defined as a macro. The
rationale seems to be based on the assumption that __tls_get_addr is
exported for every architecture and hence an internal non-plt alias is
needed. This is not true for s390 though, since it exports
__tls_get_offset and not __tls_get_addr. This results in tst-audit9
being stuck in an infinite loop.
This patch fixes this by defining a __tls_get_addr macro to itself so
as to not use the conflicting declaration.
Adhemerval Zanella [Mon, 12 Jan 2015 01:33:17 +0000 (19:33 -0600)]
powerpc: Fix POWER7/PPC64 performance regression on LE
This patch fixes a performance regression on the POWER7/PPC64 memcmp
porting for Little Endian. The LE code uses 'ldbrx' instruction to read
the memory on byte reversed form, however ISA 2.06 just provide the indexed
form which uses a register value as additional index, instead of a fixed value
enconded in the instruction.
And the port strategy for LE uses r0 index value and update the address
value on each compare loop interation. For large compare size values,
it adds 8 more instructions plus some more depending of trailing
size. This patch fixes it by adding pre-calculate indexes to remove the
address update on loops and tailing sizes.
For large sizes it shows a considerable gain, with double performance
pairing with BE.
Adhemerval Zanella [Fri, 9 Jan 2015 21:04:26 +0000 (16:04 -0500)]
powerpc: Optimized strncmp for POWER8/PPC64
This patch adds an optimized POWER8 strncmp. The implementation focus
on speeding up unaligned cases follwing the ideas of power8 strcmp.
The algorithm first check the initial 16 bytes, then align the first
function source and uses unaligned loads on second argument only.
Aditional checks for page boundaries are done for unaligned cases
(where sources alignment are different).
Rajalakshmi Srinivasaraghavan [Fri, 9 Jan 2015 16:56:35 +0000 (11:56 -0500)]
powerpc: Optimize POWER7 strcmp trailing checks
This patch optimized the POWER7 trailing check by avoiding using byte
read operations and instead use the doubleword already readed with
bitwise operations.
David S. Miller [Tue, 13 Jan 2015 19:28:17 +0000 (11:28 -0800)]
Fix scanf15.c testsuite build on sparc.
* include/signal.h (__sigreturn): Guard with __USE_MISC.
Roland McGrath [Tue, 13 Jan 2015 19:12:55 +0000 (11:12 -0800)]
Remove some references to bcopy/bcmp/bzero.
Adhemerval Zanella [Wed, 7 Jan 2015 12:18:30 +0000 (07:18 -0500)]
powerpc: Optimized strcmp for POWER8/PPC64
This patch adds an optimized POWER8 strcmp using unaligned accesses.
The algorithm first check the initial 16 bytes, then align the first
function source and uses unaligned loads on second argument only.
Aditional checks for page boundaries are done for unaligned cases
Adhemerval Zanella [Wed, 31 Dec 2014 16:47:41 +0000 (11:47 -0500)]
powerpc: Optimized st{r,p}ncpy for POWER8/PPC64
This patch adds an optimized POWER8 st{r,p}ncpy using unaligned accesses.
It shows 10%-80% improvement over the optimized POWER7 one that uses
only aligned accesses, specially on unaligned inputs.
The algorithm first read and check 16 bytes (if inputs do not cross a 4K
page size). The it realign source to 16-bytes and issue a 16 bytes read
and compare loop to speedup null byte checks for large strings. Also,
different from POWER7 optimization, the null pad is done inline in the
implementation using possible unaligned accesses, instead of realying on
a memset call. Special case is added for page cross reads.
Adhemerval Zanella [Tue, 23 Dec 2014 18:39:23 +0000 (13:39 -0500)]
powerpc: Optimized strncat for POWER7/PPC64
With
3eb38795dbbbd816 (Simplify strncat) the generic algorithms uses
strlen, strnlen, and memcpy. This is faster than POWER7 current
implementation, especially for unaligned strings (where POWER7 code
uses byte-byte operations).
This patch removes the assembly implementation and uses a multiarch
specialization based on default algorithm calling optimized POWER7
symbols.
Adhemerval Zanella [Tue, 23 Dec 2014 18:36:34 +0000 (13:36 -0500)]
powerpc: Optimized strcat for POWER8/PPC64
With new optimized strcpy for POWER8, this patch adds an optimized
strcat which uses it along with default implementation at strings/.
Adhemerval Zanella [Tue, 23 Dec 2014 11:59:44 +0000 (05:59 -0600)]
powerpc: Optimized st{r,p}cpy for POWER8/PPC64
This patch adds an optimized POWER8 strcpy using unaligned accesses.
For strings up to 16 bytes the implementation first calculate the
string size, like strlen, and issues a memcpy. For larger strings,
source is first aligned to 16 bytes and then tested over a loop that
reads 16 bytes am combine the cmpb results for speedup. Special case is
added for page cross reads.
It shows 30%-60% improvement over the optimized POWER7 one that uses
only aligned accesses.
Leonhard Holz [Tue, 13 Jan 2015 06:03:56 +0000 (11:33 +0530)]
Fix memory handling in strxfrm_l [BZ #16009]
[Modified from the original email by Siddhesh Poyarekar]
This patch solves bug #16009 by implementing an additional path in
strxfrm that does not depend on caching the weight and rule indices.
In detail the following changed:
* The old main loop was factored out of strxfrm_l into the function
do_xfrm_cached to be able to alternativly use the non-caching version
do_xfrm.
* strxfrm_l allocates a a fixed size array on the stack. If this is not
sufficiant to store the weight and rule indices, the non-caching path is
taken. As the cache size is not dependent on the input there can be no
problems with integer overflows or stack allocations greater than
__MAX_ALLOCA_CUTOFF. Note that malloc-ing is not possible because the
definition of strxfrm does not allow an oom errorhandling.
* The uncached path determines the weight and rule index for every char
and for every pass again.
* Passing all the locale data array by array resulted in very long
parameter lists, so I introduced a structure that holds them.
* Checking for zero src string has been moved a bit upwards, it is
before the locale data initialization now.
* To verify that the non-caching path works correct I added a test run
to localedata/sort-test.sh & localedata/xfrm-test.c where all strings
are patched up with spaces so that they are too large for the caching path.
Torvald Riegel [Tue, 13 Jan 2015 00:09:29 +0000 (01:09 +0100)]
Fix wake-up in sysdeps/nptl/fork.c.
Joseph Myers [Mon, 12 Jan 2015 23:02:14 +0000 (23:02 +0000)]
Fix ldbl-96 scalblnl underflowing results (bug 17803).
The ldbl-96 implementation of scalblnl (used for x86_64 and ia64) uses
a condition k <= -63 to determine when a standard underflowing result
tiny*__copysignl(tiny,x) should be returned. However, that condition
corresponds to values with exponent -16446 or less, and in the case of
-16446, the correct result for round-to-nearest depends on whether the
value is exactly 0x1p-16446 (half the least subnormal) or more than
that. This patch fixes the bug by changing the condition to k <= -64
and accordingly adjusting the exponent by 64 not 63 when converting to
a normal value.
Tested for x86_64.
[BZ #17803]
* sysdeps/ieee754/ldbl-96/s_scalblnl.c (twom63): Rename to
twom64. Adjust value to 0x1p-64L.
(__scalblnl): Only return standard underflowing result for K <=
-64 not K <= -63; adjust exponent for underflowing result by 64
not 63.
* math/libm-test.inc (scalbn_test_data): Add more tests.
(scalbln_test_data): Likewise.
Joseph Myers [Mon, 12 Jan 2015 22:34:58 +0000 (22:34 +0000)]
Fix ldbl-96 scalblnl for subnormal arguments (bug 17834).
The ldbl-96 implementation of scalblnl (used for x86_64 and ia64) is
incorrect for subnormal arguments (this is a separate bug from bug
17803, which is about underflowing results). There are two problems
with the adjustments of subnormal arguments: the "two63" variable
multiplied by is actually 0x1p52L not 0x1p63L, so is insufficient to
make values normal, and then GET_LDOUBLE_EXP(es,x), used to extract
the new exponent, extracts it into a variable that isn't used, while
the value taken to by the new exponent is wrongly taken from the high
part of the mantissa before the adjustment (hx). This patch fixes
both those problems and adds appropriate tests.
Tested for x86_64.
[BZ #17834]
* sysdeps/ieee754/ldbl-96/s_scalblnl.c (two63): Change value to
0x1p63L.
(__scalblnl): Get new exponent of adjusted subnormal value from ES
not HX.
* math/libm-test.inc (scalbn_test_data): Add more tests.
(scalbln_test_data): Likewise.
Adhemerval Zanella [Fri, 27 Jun 2014 21:00:18 +0000 (14:00 -0700)]
Add x86 32 bit vDSO time function support
Linux 3.15 adds support for clock_gettime, gettimeofday, and time vDSO
(commit id
37c975545ec63320789962bf307f000f08fabd48). This patch adds
GLIBC supports to use such symbol when they are avaiable.
Along with x86 vDSO support, this patch cleanup x86_64 code by moving
all common code to x86 common folder. Only init-first.c is different
between implementations.
Adhemerval Zanella [Mon, 12 Jan 2015 17:58:34 +0000 (12:58 -0500)]
powerpc: Fix Copyright dates and CL entry
This patch fixes the copyright dates from files created by commit
8d2c0a5, 4b45943, and 56cf276.
Adhemerval Zanella [Fri, 7 Nov 2014 17:34:52 +0000 (12:34 -0500)]
powerpc: abort transaction in syscalls
Linux kernel powerpc documentation states issuing a syscall inside a
transaction is not recommended and may lead to undefined behavior. It
also states syscalls does not abort transactoin neither they run in
transactional state.
To avoid side-effects being visible outside transactions, GLIBC with
lock elision enabled will issue a transaction abort instruction just
before all syscalls if hardware supports hardware transactions.
Adhemerval Zanella [Fri, 7 Nov 2014 17:30:56 +0000 (12:30 -0500)]
powerpc: Add adaptive elision to rwlocks
This patch adds support for lock elision using ISA 2.07 hardware
transactional memory for rwlocks. The logic is similar to the
one presented in pthread_mutex lock elision.
Adhemerval Zanella [Fri, 7 Nov 2014 17:25:32 +0000 (12:25 -0500)]
powerpc: Add the lock elision using HTM
This patch adds support for lock elision using ISA 2.07 hardware
transactional memory instructions for pthread_mutex primitives.
Similar to s390 version, the for elision logic defined in
'force-elision.h' is only enabled if ENABLE_LOCK_ELISION is defined.
Also, the lock elision code should be able to be built even with
a compiler that does not provide HTM support with builtins.
However I have noted the performance is sub-optimal due scheduling
pressures.
Andreas Schwab [Mon, 12 Jan 2015 09:26:16 +0000 (10:26 +0100)]
Remove 17581 from NEWS
Roland McGrath [Sat, 10 Jan 2015 00:08:14 +0000 (16:08 -0800)]
Fix shm-directory.h #include.
Chung-Lin Tang [Fri, 9 Jan 2015 17:40:29 +0000 (09:40 -0800)]
Remove divide from _ELF_DYNAMIC_DO_RELOC in elf/dynamic-link.h.
Matthew Fortune [Mon, 5 Jan 2015 15:12:45 +0000 (15:12 +0000)]
MicroBlaze: Fix BZ17791 - Remove fixed page size macros and others
Microblaze apparently has a variable page size (see thread below) and
should not hard-code any page-size related macros.
Also remove macros that are only used for BFD's trad-core support
which is not relavant for microblaze also according to the thread
starting here:
https://sourceware.org/ml/libc-ports/2013-11/msg00028.html
This patch is neither built nor tested but mirrors a MIPS patch that
fixes the same issue.
Thanks,
Matthew
* sysdepsysdeps/unix/sysv/linux/microblaze/sys/user.h
(PAGE_SHIFT, PAGE_SIZE, PAGE_MASK, NBPG, UPAGES): Remove.
(HOST_TEXT_START_ADDR, HOST_STACK_END_ADDR): Remove.
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>