Ulrich Drepper [Mon, 24 Aug 2009 19:07:27 +0000 (12:07 -0700)]
Merge branch 'master' of ssh://sources.redhat.com/git/glibc
Ulrich Drepper [Mon, 24 Aug 2009 19:06:55 +0000 (12:06 -0700)]
Fix overflow handling in fdim.
Roland McGrath [Mon, 24 Aug 2009 00:43:21 +0000 (17:43 -0700)]
Add sysdeps/unix/syscall-template.S; build syscall stubs with deps and -g pointing to it.
Ulrich Drepper [Mon, 24 Aug 2009 17:33:57 +0000 (10:33 -0700)]
Define math_errhandling is possible.
Ulrich Drepper [Mon, 24 Aug 2009 17:20:58 +0000 (10:20 -0700)]
Optimize x86-64 signbit{,f} a bit.
Ulrich Drepper [Mon, 24 Aug 2009 03:43:53 +0000 (20:43 -0700)]
Merge branch 'master' of ssh://sources.redhat.com/git/glibc
Roland McGrath [Sun, 23 Aug 2009 23:33:50 +0000 (16:33 -0700)]
Fix td_ta_map_lwp2thr logging and early sanity check.
Ulrich Drepper [Sun, 23 Aug 2009 23:03:48 +0000 (16:03 -0700)]
Extend last test case.
Ulrich Drepper [Sun, 23 Aug 2009 22:33:40 +0000 (15:33 -0700)]
Add test case for last fixed regex bug.
Ulrich Drepper [Sun, 23 Aug 2009 22:22:00 +0000 (15:22 -0700)]
Recognize ill-formed { } expressions in regcomp.
Ulrich Drepper [Sun, 23 Aug 2009 21:55:51 +0000 (14:55 -0700)]
Also correct _POSIX2_* constants in case older standards are selected.
Ulrich Drepper [Sun, 23 Aug 2009 20:59:41 +0000 (13:59 -0700)]
More namespace cleanups.
Ulrich Drepper [Sun, 23 Aug 2009 19:27:09 +0000 (12:27 -0700)]
Define _POSIX_VERSION correctly when older POSIX versions are selected.
Ulrich Drepper [Sun, 23 Aug 2009 18:57:52 +0000 (11:57 -0700)]
Print sign of NaN values.
Ulrich Drepper [Sun, 23 Aug 2009 17:56:08 +0000 (10:56 -0700)]
Thread-local locale handling part of XPG7.
I incorrectly enabled the definitions for XPG6.
Ulrich Drepper [Sun, 23 Aug 2009 00:58:04 +0000 (17:58 -0700)]
Rvert accidental checkins.
Andreas Schwab [Sat, 22 Aug 2009 09:01:51 +0000 (02:01 -0700)]
Add sigstack handling to Linux ____longjmp_chk on powerpc.
Roland McGrath [Thu, 20 Aug 2009 22:31:08 +0000 (15:31 -0700)]
Improve backtrace_symbols{,_fd} output when missing symbols.
Ulrich Drepper [Sun, 16 Aug 2009 07:39:43 +0000 (00:39 -0700)]
Fix 64-bit platform handling in test cases for generated headers with constants.
Ulrich Drepper [Fri, 14 Aug 2009 07:42:51 +0000 (00:42 -0700)]
Improve test-skeleton.c to clean up after dead parent.
Ulrich Drepper [Wed, 12 Aug 2009 03:47:36 +0000 (20:47 -0700)]
Add CFI directives to x86-64 pthread_rwlock_unlock.
Ulrich Drepper [Mon, 10 Aug 2009 18:26:16 +0000 (11:26 -0700)]
Add CFI directives to x86-64 pthread_rwlock_{rd,wr)lock.
SUGIOKA Toshinobu [Mon, 10 Aug 2009 15:12:49 +0000 (08:12 -0700)]
SH: fix clobber list in stdlib/longlong.h
Andreas Schwab [Mon, 10 Aug 2009 15:10:11 +0000 (08:10 -0700)]
Fix check for PI mutex in x86-64 pthread_cond_signal
Register eax contains the syscall number, use a different one instead.
Ulrich Drepper [Sun, 9 Aug 2009 00:48:09 +0000 (17:48 -0700)]
Optimize x86-64 version of sem_timedwait.
Ulrich Drepper [Sat, 8 Aug 2009 18:01:04 +0000 (11:01 -0700)]
Remove duplicate NEWS entry.
Ulrich Drepper [Sat, 8 Aug 2009 17:57:59 +0000 (10:57 -0700)]
Yet more news items.
H.J. Lu [Sat, 8 Aug 2009 17:54:42 +0000 (10:54 -0700)]
Support mixed SSE/AVX audit and check AVX only once.
This patch fixes mixed SSE/AVX audit and checks AVX only once in
_dl_runtime_profile. When an AVX or SSE register value in pltenter is
modified, we have to make sure that the SSE part value is the same in both
lr_xmm and lr_vector fields so that pltexit will get the correct value
from either lr_xmm or lr_vector fields. AVX-enabled pltenter should
update both lr_xmm and lr_vector fields to support stacked AVX/SSE
pltenter functions.
H.J. Lu [Sat, 8 Aug 2009 17:29:29 +0000 (10:29 -0700)]
Use PIC only if SHARED is defined.
For ia32, we can avoid PIC in IFUNC functions in static library.
Jim Meyering [Sat, 8 Aug 2009 17:25:58 +0000 (10:25 -0700)]
Simplify cpuid.h configure test.
Ulrich Drepper [Sat, 8 Aug 2009 17:21:46 +0000 (10:21 -0700)]
Another minor optimization of x86-64 pthread_cond_wait.
Ulrich Drepper [Sat, 8 Aug 2009 16:38:32 +0000 (09:38 -0700)]
Move SSE4.2 functions together.
Ulrich Drepper [Sat, 8 Aug 2009 16:13:02 +0000 (09:13 -0700)]
Add some news items.
Ulrich Drepper [Sat, 8 Aug 2009 05:51:02 +0000 (22:51 -0700)]
Add SSSE3-optimized implementation of str{,n}cmp for x86-64.
Ulrich Drepper [Sat, 8 Aug 2009 03:36:53 +0000 (20:36 -0700)]
Small optimizations to cancellable x86-64 code.
Ulrich Drepper [Fri, 7 Aug 2009 23:19:54 +0000 (16:19 -0700)]
Avoid warning through fake initialization.
Ulrich Drepper [Fri, 7 Aug 2009 17:41:54 +0000 (10:41 -0700)]
Fix whitespace in last patch.
H.J. Lu [Fri, 7 Aug 2009 17:40:45 +0000 (10:40 -0700)]
Add the missing "; \".
Andreas Schwab [Fri, 7 Aug 2009 17:39:55 +0000 (10:39 -0700)]
Fix expanding STB_GNU_UNIQUE hash table.
An invalid symbol name pointer was entered into the hash table while
enlarging it.
Ulrich Drepper [Fri, 7 Aug 2009 16:47:12 +0000 (09:47 -0700)]
Fix whitespaces in last checkin.
H.J. Lu [Fri, 7 Aug 2009 16:39:36 +0000 (09:39 -0700)]
Properly count number of logical processors on Intel CPUs.
The meaning of the 25-14 bits in EAX returned from cpuid with EAX = 4
has been changed from "the maximum number of threads sharing the cache"
to "the maximum number of addressable IDs for logical processors sharing
the cache" if cpuid takes EAX = 11. We need to use results from both
EAX = 4 and EAX = 11 to get the number of threads sharing the cache.
The 25-14 bits in EAX on Core i7 is 15 although the number of logical
processors is 8. Here is a white paper on this:
http://software.intel.com/en-us/articles/intel-64-architecture-processor-topology-enumeration/
This patch correctly counts number of logical processors on Intel CPUs
with EAX = 11 support on cpuid. Tested on Dinnington, Core i7 and
Nehalem EX/EP.
It also fixed Pentium Ds workaround since EBX may not have the right
value returned from cpuid with EAX = 1.
Andreas Schwab [Fri, 7 Aug 2009 08:40:42 +0000 (10:40 +0200)]
Fix sed expression in TAGS command.
The backslash-newline pair is interpreted as the beginning of an address
regex.
Andreas Schwab [Thu, 6 Aug 2009 11:29:14 +0000 (13:29 +0200)]
Ignore TAGS.
Ulrich Drepper [Wed, 5 Aug 2009 01:15:02 +0000 (18:15 -0700)]
Add x86 SSE strlen.
H.J. Lu [Tue, 4 Aug 2009 19:13:43 +0000 (12:13 -0700)]
Add x86 32-bit SSE4.2 string functions.
This patch adds 32bit SSE4.2 string functions. It uses -16L instead of
0xfffffffffffffff0L, which works for both 32bit and 64bit long. Tested
on 32bit Core i7 and Core 2.
Ulrich Drepper [Tue, 4 Aug 2009 18:03:46 +0000 (11:03 -0700)]
Optimize x86-64 syscall cancellation handling.
The syscall wrappers had to save and restore the syscall parameter
values and return value when calling the functions to enable/disable
cancellation were called. Not anymore. The called functions are
special and don't modify any unexpected registers.
Ulrich Drepper [Mon, 3 Aug 2009 04:51:37 +0000 (21:51 -0700)]
Remove leftover code from Linux/x86 ____longjmp_chk.
Ulrich Drepper [Sun, 2 Aug 2009 17:38:44 +0000 (10:38 -0700)]
x86/x86-64 now needs <cpuid.h> from gcc.
Ulrich Drepper [Sat, 1 Aug 2009 21:18:58 +0000 (14:18 -0700)]
Remove last trace of bounded pointer handling from ____longjmp_chk on x86-64.
Ulrich Drepper [Sat, 1 Aug 2009 05:30:30 +0000 (22:30 -0700)]
Macro cleanup.
Better definition of the *_NITSET macros.
Ulrich Drepper [Sat, 1 Aug 2009 04:50:00 +0000 (21:50 -0700)]
Merge branch 'master' of file:///net/myware66/home/drepper/gnu/libc
Ulrich Drepper [Sat, 1 Aug 2009 04:48:59 +0000 (21:48 -0700)]
Regenerated.
Ulrich Drepper [Sat, 1 Aug 2009 00:27:38 +0000 (17:27 -0700)]
Optimize x86 and x86-64 ____longjmp_chk for Linux.
Ulrich Drepper [Fri, 31 Jul 2009 19:57:45 +0000 (12:57 -0700)]
Fix ____longjmp_chk on x86-64.
After a recent change to fix CFI in ____longjmp_chk the test of the
ss_flags used the wrong memory location.
H.J. Lu [Fri, 31 Jul 2009 18:53:35 +0000 (11:53 -0700)]
Support multiarch for i686.
This patch adds multiarch support when configured for i686. I modified
some x86-64 functions to support 32bit. I will contribute 32bit SSE string
and memory functions later.
Jakub Jelinek [Fri, 31 Jul 2009 14:26:36 +0000 (07:26 -0700)]
Fix obstack* on i?86
obstack calls several callbacks, so on i?86 it'd better be compiled
without -mpreferred-stack-boundary=2, otherwise the callbacks are called
with misaligned stack.
Ulrich Drepper [Fri, 31 Jul 2009 14:20:45 +0000 (07:20 -0700)]
Remove CHEC_ESP handling from i386 __longjmp.
Ulrich Drepper [Fri, 31 Jul 2009 04:51:56 +0000 (21:51 -0700)]
Whitespace cleanup.
Ulrich Drepper [Fri, 31 Jul 2009 04:50:14 +0000 (21:50 -0700)]
Add sigstack handling to Linux ____longjmp_chk on i386.
All other i386 ports need to provide their own versions.
Ulrich Drepper [Fri, 31 Jul 2009 04:42:27 +0000 (21:42 -0700)]
____longjmp_chk is now OS-specific.
We use sigaltstack internally which on some systems is a syscall
and should be used as such. Move the x86-64 version to the Linux
specific directory and create in its place a file which always
causes compile errors.
Ulrich Drepper [Fri, 31 Jul 2009 04:29:27 +0000 (21:29 -0700)]
Change code a bit to correct CFI.
Ulrich Drepper [Fri, 31 Jul 2009 03:09:30 +0000 (20:09 -0700)]
Optimize ____longjmp_chk for x86-64 a bit.
Ulrich Drepper [Fri, 31 Jul 2009 02:46:46 +0000 (19:46 -0700)]
Add CFLAGS definition missing from last patch.
Ulrich Drepper [Fri, 31 Jul 2009 00:48:58 +0000 (17:48 -0700)]
Add test case for ____longjmp_chk vs signal stacks.
Ulrich Drepper [Fri, 31 Jul 2009 00:31:48 +0000 (17:31 -0700)]
Fix x86-64 ____longjmp_chk to handle signal stacks.
The simple test previously used might trigger if the longjmp jumps
from the signal stack to the normal stack. We now explicitly test
for this case.
Ulrich Drepper [Thu, 30 Jul 2009 23:53:52 +0000 (16:53 -0700)]
Stop backtrace when we make no more progress.
Ulrich Drepper [Wed, 29 Jul 2009 22:26:06 +0000 (15:26 -0700)]
Add support for x86-64 fma instruction.
Use it to implement fma and fmaf, if possible.
Ulrich Drepper [Wed, 29 Jul 2009 22:22:28 +0000 (15:22 -0700)]
Prepare use if IFUNC functions outside libc.so.
We use a callback function into libc.so to get access to the data
structure with the information and have special versions of the test
macros which automatically use this function.
Ulrich Drepper [Wed, 29 Jul 2009 16:01:04 +0000 (09:01 -0700)]
Fix x86-64 TCB alignment for future processor versions.
Ulrich Drepper [Wed, 29 Jul 2009 15:50:03 +0000 (08:50 -0700)]
Improve CFI in x86-64 ld.so trampoline code.
H.J. Lu [Wed, 29 Jul 2009 15:40:54 +0000 (08:40 -0700)]
Properly restore AVX registers on x86-64.
tst-audit4 and tst-audit5 fail under AVX emulator due to je instead of
jne. This patch fixes them.
Ulrich Drepper [Wed, 29 Jul 2009 15:33:03 +0000 (08:33 -0700)]
Preserve SSE registers in runtime relocations on x86-64.
SSE registers are used for passing parameters and must be preserved
in runtime relocations. This is inside ld.so enforced through the
tests in tst-xmmymm.sh. But the malloc routines used after startup
come from libc.so and can be arbitrarily complex. It's overkill
to save the SSE registers all the time because of that. These calls
are rare. Instead we save them on demand. The new infrastructure
put in place in this patch makes this possible and efficient.
Ulrich Drepper [Wed, 29 Jul 2009 04:58:32 +0000 (21:58 -0700)]
Fix bookkeeping of static TLS block for TLS_TCB_AT_TP architectures.
Ulrich Drepper [Tue, 28 Jul 2009 16:40:39 +0000 (09:40 -0700)]
Fix bookkeeping in mutex when using requeue_pi.
Ulrich Drepper [Mon, 27 Jul 2009 20:46:56 +0000 (13:46 -0700)]
pthread_mutex_unlock needs to use _rel semantics for atomic ops.
Ulrich Drepper [Mon, 27 Jul 2009 20:43:01 +0000 (13:43 -0700)]
Revert "Memory ordering in pthread_mutex_{,timed}lock."
This reverts commit
7b7f43bed134db6a0da34282fffcbf0af10d4613.
Ulrich Drepper [Mon, 27 Jul 2009 20:40:27 +0000 (13:40 -0700)]
Refine testing for xmm/ymm register use in x86-64 ld.so.
The test now takes the callgraph into account. Only code called
during runtime relocation is affected by the limitation. We now
determine the affected object files as closely as possible from
the outside. This allowed to remove some the specializations
for some of the string functions as they are only used in other
code paths.
Ulrich Drepper [Mon, 27 Jul 2009 20:23:00 +0000 (13:23 -0700)]
Break out _dl_scope_free into its own file.
This reduces the coarse static callgraph that can be discovered by
looking at the object files.
Adam Tkac [Mon, 27 Jul 2009 14:33:48 +0000 (07:33 -0700)]
Define and implement RES_USE_DNSSEC option in resolver.
Jakub Jelinek [Mon, 27 Jul 2009 14:25:57 +0000 (07:25 -0700)]
Fix STB_GNU_UNIQUE handling for > 30 unique symbols.
There were several issues when the initial 31 entries hashtab filled up.
size * 3 <= tab->n_elements is always false, table can't have more elements
than its size. I assume from libiberty/hashtab.c this meant to be check for
3/4 full. Even after fixing that, _dl_higher_prime_number (31) apparently
returns 31, only _dl_higher_prime_number (32) returns 61. And, size
variable wasn't updated during reallocation, which means during reallocation
the insertion of the new entry was done into a wrong spot.
All this lead to a hang in ld.so, because a search with n_elements 31 size
31 wouldn't ever terminate.
Ulrich Drepper [Mon, 27 Jul 2009 13:55:04 +0000 (06:55 -0700)]
No need for special strcmp for rtld.
Ulrich Drepper [Sun, 26 Jul 2009 23:10:00 +0000 (16:10 -0700)]
Make sure no code in ld.so uses xmm/ymm registers on x86-64.
This patch introduces a test to make sure no function modifies the
xmm/ymm registers. With the exception of the auditing functions.
The test is probably too pessimistic. All code linked into ld.so
is checked. Perhaps at some point the callgraph starting from
_dl_fixup and _dl_profile_fixup is checked and we can start using
faster SSE-using functions in parts of ld.so.
Ulrich Drepper [Sun, 26 Jul 2009 20:37:45 +0000 (13:37 -0700)]
Add missing ChangeLog entry for last checkin.
H.J. Lu [Sun, 26 Jul 2009 20:32:28 +0000 (13:32 -0700)]
Add SSE2 support to str{,n}cmp for x86-64.
Ulrich Drepper [Sun, 26 Jul 2009 20:00:04 +0000 (13:00 -0700)]
Memory ordering in pthread_mutex_{,timed}lock.
All commits should have happened before the mutex lock is taken.
Therefore use the _rel variant of the cmpxchg atomic op.
Ulrich Drepper [Sun, 26 Jul 2009 19:55:03 +0000 (12:55 -0700)]
Compatibility of signalfd/eventfd with older kernels.
Ulrich Drepper [Sun, 26 Jul 2009 19:16:24 +0000 (12:16 -0700)]
Handle SERVFAIL, NOTIMP, REFUSED replies from DNS server better.
When doing IPv4+6 lookups we have to pass up the error record from
send_dg.
Ulrich Drepper [Sun, 26 Jul 2009 15:26:43 +0000 (08:26 -0700)]
Define NT_GNU_GOLD_VERSION.
H.J. Lu [Sun, 26 Jul 2009 02:15:14 +0000 (19:15 -0700)]
Some some optimizations for x86-64 strcmp.
Ulrich Drepper [Sat, 25 Jul 2009 19:29:04 +0000 (12:29 -0700)]
Handle missing NSS modules and those without callbacks.
getaddrinfo didn't update the status variable in that round of the
loop if no callback was used.
Ulrich Drepper [Sat, 25 Jul 2009 19:02:47 +0000 (12:02 -0700)]
Optimize x86-64 SSE4.2 strcmp.
The file contained some code which was never used. Don't compile it
in.
Ulrich Drepper [Fri, 24 Jul 2009 20:01:17 +0000 (13:01 -0700)]
Don't automatically use /lib/modules/* headers.
Ever since the /usr/include/linux headers got cleaned up this isn't
necessary. Meanwhile everybody should have these cleanups.
Ulrich Drepper [Fri, 24 Jul 2009 15:34:47 +0000 (08:34 -0700)]
More white space fixes.
Ulrich Drepper [Fri, 24 Jul 2009 15:32:47 +0000 (08:32 -0700)]
White space fixes in last checkin.
Andreas Krebbel [Fri, 24 Jul 2009 15:29:06 +0000 (08:29 -0700)]
S/390: Hardware iconv modules.
Ulrich Drepper [Fri, 24 Jul 2009 00:15:56 +0000 (17:15 -0700)]
Check for .cfi_{personality,lsda} on x86-64.
We need this support in NPTL now to avoid the hand-coded tables.
Ulrich Drepper [Thu, 23 Jul 2009 23:39:06 +0000 (16:39 -0700)]
Fix pthread_cond_timedwait error handling on old kernels.
Ulrich Drepper [Thu, 23 Jul 2009 21:03:53 +0000 (14:03 -0700)]
Avoid cpuid instructions in cache info discovery.
When multiarch is enabled we have this information stored. Use it.
Ulrich Drepper [Thu, 23 Jul 2009 20:42:46 +0000 (13:42 -0700)]
Add more cache descriptors for L3 caches on x86 and x86-64.
The most recent AP 485 describes a few more cache descriptors for
L3 caches with 24-way associativity.
Ulrich Drepper [Thu, 23 Jul 2009 20:15:17 +0000 (13:15 -0700)]
Perform test for Arom x86-64 in central place and handle it.
There will be more than one function which, in multiarch mode, wants
to use SSSE3. We should not test in each of them for Atoms with
slow SSSE3. Instead, disable the SSSE3 bit in the startup code for
such machines.