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Author SHA1 Message Date
Ulrich Drepper
009a69f0bc No need for special strcmp for rtld. 2009-07-27 06:55:04 -07:00
Ulrich Drepper
16d2ea4c82 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.
 2009-07-26 16:10:00 -07:00
Ulrich Drepper
dc8e5eb6ed Add missing ChangeLog entry for last checkin. 2009-07-26 13:37:45 -07:00
H.J. Lu
7956a3d27c Add SSE2 support to str{,n}cmp for x86-64. 2009-07-26 13:32:28 -07:00
Ulrich Drepper
7b7f43bed1 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.
 2009-07-26 13:00:04 -07:00
Ulrich Drepper
aa7492d20e Compatibility of signalfd/eventfd with older kernels. 2009-07-26 12:55:03 -07:00
Ulrich Drepper
e28b969b49 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.
 2009-07-26 12:16:24 -07:00
Ulrich Drepper
889f847e4a Define NT_GNU_GOLD_VERSION. 2009-07-26 08:26:43 -07:00
H.J. Lu
4e5b5821bf Some some optimizations for x86-64 strcmp. 2009-07-25 19:15:14 -07:00
Ulrich Drepper
657317537c 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.
 2009-07-25 12:29:04 -07:00
Ulrich Drepper
29e92fa5cd Optimize x86-64 SSE4.2 strcmp. 
The file contained some code which was never used.  Don't compile it
in.
 2009-07-25 12:02:47 -07:00
Ulrich Drepper
da331e8e14 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.
 2009-07-24 13:01:17 -07:00
Ulrich Drepper
7c36ced067 More white space fixes. 2009-07-24 08:34:47 -07:00
Ulrich Drepper
89749d1970 White space fixes in last checkin. 2009-07-24 08:32:47 -07:00
Andreas Krebbel
f957edded8 S/390: Hardware iconv modules. 2009-07-24 08:29:06 -07:00
Ulrich Drepper
01b597da40 Check for .cfi_{personality,lsda} on x86-64. 
We need this support in NPTL now to avoid the hand-coded tables.
 2009-07-23 17:15:56 -07:00
Ulrich Drepper
f1adf1f490 Fix pthread_cond_timedwait error handling on old kernels. 2009-07-23 16:39:06 -07:00
Ulrich Drepper
b2509a1e38 Avoid cpuid instructions in cache info discovery. 
When multiarch is enabled we have this information stored.  Use it.
 2009-07-23 14:03:53 -07:00
Ulrich Drepper
3e9099b4f6 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.
 2009-07-23 13:42:46 -07:00
Ulrich Drepper
d28797e426 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.
 2009-07-23 13:15:17 -07:00
Ulrich Drepper
666a9871f7 Avoid warnings in test cases. 
The posix/tst-rfc3484* test cases caused warnings in newer gccs
because the unused but copied sin_zero part of sockaddr_in wasn't
explicitly initialized.
 2009-07-23 12:53:50 -07:00
Duncan Simpson
30a2dfd518 Make include/unistd.h suitable for C++ test cases. 2009-07-23 12:39:17 -07:00
Ulrich Drepper
9b6bf8a302 Preserve stack alignment in i386 makecontext. 2009-07-23 08:02:07 -07:00
Ulrich Drepper
c15b1d20cd Minor optimization of unloading prevention patch. 
References to unique symbols from copy relocations can only come
from executables which cannot be unloaded anyway.  Optimize the
code to set the unload flag a bit.
 2009-07-23 07:40:56 -07:00
Ulrich Drepper
fe4d2935e8 Fix comment. 2009-07-23 07:37:48 -07:00
Ulrich Drepper
077e7700b3 Some more fixes for the unique symbol handling. 
The hash value can be zero, so we need a different test for empty
slots.  And unify the way we prevent a DSO from being unloaded.
 2009-07-23 07:36:34 -07:00
Ulrich Drepper
802fe9a1ca Handle unloading of DSO with a unique symbol definition. 2009-07-23 07:07:53 -07:00
Ulrich Drepper
0122f28eb9 Add 2.11 news items. 2009-07-21 08:32:54 -07:00
Ulrich Drepper
ae612b04cc Minor cleanups in x86-64 strstr. 2009-07-21 07:52:12 -07:00
Ulrich Drepper
a8f895ebe1 Better check for optimization in new x86-64 strstr/strcasestr. 2009-07-20 21:18:28 -07:00
H.J. Lu
2b7a8664fa SSE4.2 strstr/strcasestr for x86-64. 
This patch implements SSE4.2 strstr/strcasestr, using Knuth-Morris-Pratt
string searching algorithm.
 2009-07-20 21:06:50 -07:00
Ulrich Drepper
63fbc91bec Use correct index for _NL_CTYPE_NONASCII_CASE. 2009-07-20 20:50:38 -07:00
Ulrich Drepper
8a4494506d Check generated locale for non-ASCII 8-bit characters with case conversion. 
If a locale does not have 8-bit characters with case conversion which
are different from the ASCII conversion (±0x20) then we can perform
some optimizations.  These will follow later.
 2009-07-20 20:04:42 -07:00
Ulrich Drepper
c3db953c16 Minor optimizations of last x86-64 condvar changes. 2009-07-20 08:39:47 -07:00
Ulrich Drepper
42e69bcf11 Support requeueing for condvars using PI mutex. x86-64 only. 
Add support for the new FUTEX_WAIT_REQUEUE_PI and FUTEX_CMP_REQUEUE_PI
options of futex.
 2009-07-19 20:56:40 -07:00
Ulrich Drepper
515a8908ce Make x86-64 pthread_cond_timedwait more robust. 
It just happens that __pthread_enable_asynccancel doesn't modify the $rdi
register.  But this isn't guaranteed.  Hence we reload the register after
the calls.
 2009-07-19 14:54:56 -07:00
Ulrich Drepper
e2dca2fea3 Extend x86-64 __lll_robust_timedlock_wait to use futex syscall with absolute timeout. 2009-07-19 00:00:17 -07:00
Ulrich Drepper
3d77b2687f Add more sem_timedwait tests. 2009-07-18 22:07:25 -07:00
Ulrich Drepper
32c6c342b6 Extend x86-64 pthread_rwlock_timedrdlock to use futex syscall with absolute timeout. 2009-07-18 21:53:26 -07:00
Ulrich Drepper
4c74e6522a Pretty printing last change. 2009-07-18 21:41:52 -07:00
Ulrich Drepper
d979611eb9 Extend x86-64 pthread_rwlock_timedwrlock to use futex syscall with absolute timeout. 2009-07-18 21:35:33 -07:00
Ulrich Drepper
d9201c1365 Remove leftover cfi. 2009-07-18 13:08:21 -07:00
Ulrich Drepper
f8b6cd2182 Extend pthread_cond_timedwait tests. 2009-07-18 12:45:27 -07:00
Ulrich Drepper
e88726b483 Extend x86-64 pthread_cond_timedwait to use futex syscall with absolute timeout. 2009-07-18 12:44:12 -07:00
Ulrich Drepper
92618c954f Optimize x86-64 pthread_cond_timedwait. 
Instead of actively registering an unwind buffer we now use the
exception handling functionality of the gcc runtime.
 2009-07-18 08:53:18 -07:00
Ulrich Drepper
30b1954abb Optimize x86-64 pthread_cond_wait. 
Instead of actively registering an unwind buffer we now use the
exception handling functionality of the gcc runtime.
 2009-07-18 08:09:39 -07:00
Ulrich Drepper
f351f2b756 Extend x86-64 sem_timedwait to use futex syscall with absolute timeout. 2009-07-17 19:08:54 -07:00
Ulrich Drepper
312d667b85 Consistently use symbolic constants. 2009-07-17 16:39:27 -07:00
Ulrich Drepper
aee2665a17 Replace hand-coded unwind tables from x86-64 sem_timedwait. 2009-07-17 16:26:06 -07:00
Ulrich Drepper
0adae46817 Optimize x86-64 sem_wait for uncontested semaphore. 2009-07-17 15:50:23 -07:00