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6127 Commits

Author SHA1 Message Date
Ulrich Drepper
63601ccd16 Replace hand-coded unwind tables from x86-64 pthread_once. 2009-07-17 14:45:08 -07:00
Ulrich Drepper
55c4ce6885 Remove warning and little optimization. 
The prototype for _dl_higher_prime_number was missing.  While at it,
the function is now marked with internal_function.
 2009-07-16 07:18:53 -07:00
Ulrich Drepper
c8027cced1 Optimize restoring of ymm registers on x86-64. 
The patch mainly reduces the code size but also avoids some jumps.
 2009-07-16 07:15:15 -07:00
Ulrich Drepper
24a12a5a5f Fix up whitespaces in new memcmp for x86-64. 2009-07-16 07:02:27 -07:00
H.J. Lu
e26c9b8415 memcmp implementation for x86-64 using SSE2. 2009-07-16 07:00:34 -07:00
Ulrich Drepper
ca419225a3 Fix thinko in AVX audit patch. 
Don't use AVX instructions too often.
 2009-07-15 17:59:14 -07:00
Ulrich Drepper
47fc9b710b Fix typo in last change. 2009-07-15 17:51:11 -07:00
Ulrich Drepper
d7bd7a8ae8 Secure AVX changes for auditing code. 
The original AVX patch used a function pointer to handle the difference
between machines with and without AVX support.  This is insecure.  A
well-placed memory exploit could lead to redirection of the execution.
Using a variable and several tests is a bit slower but cannot be
exploited in this way.
 2009-07-15 17:41:36 -07:00
H.J. Lu
b0ecde3a63 Add AVX support to ld.so auditing for x86-64. 2009-07-10 12:04:14 -07:00
Ulrich Drepper
339717d5f1 Fix comment in Linux's <sys/epoll.h>. 2009-07-10 06:14:25 -07:00
Ulrich Drepper
415ac3df9b Implement STB_GNU_UNIQUE handling. 
Some symbols have to be identified process-wide by their name.  This is
particularly important for some C++ features (e.g., class local static data
and static variables in inline functions).  This cannot completely be
implemented with ELF functionality so far.  The STB_GNU_UNIQUE binding
helps by ensuring the dynamic linker will always use the same definition for
all symbols with the same name and this binding.
 2009-07-09 23:52:22 -07:00
Andreas Schwab
2123d5815e Fix wrong PPC_FEATURE_* values. 
Nothing uses these wrong values yet, but it fixes a warning due to
conflicting definitions in <asm/cputable.h>.
 2009-07-05 23:46:03 -07:00
Ulrich Drepper
cea4329592 Minor cleanups in recently added files. 2009-07-03 03:23:01 -07:00
Ulrich Drepper
d6485c981b Align functions to 16-byte boundary. 
Some of the new multi-arch string functions for x86-64 were
not aligned to 16 byte boundarie,s possibly creating unnecessary
cache line misses and delays.
 2009-07-03 03:01:57 -07:00
H.J. Lu
06e51c8f3d Add SSE4.2 support for strcspn, strpbrk, and strspn on x86-64. 2009-07-03 02:48:56 -07:00
H.J. Lu
167d5ed5de Fix handling of xmm6 in ld.so audit hooks on x86-64. 2009-07-02 04:33:12 -07:00
Ulrich Drepper
af263b8154 Whitespace fixes in last patch. 2009-07-02 03:43:05 -07:00
H.J. Lu
ab6a873fe0 SSSE3 strcpy/stpcpy for x86-64 
This patch adds SSSE3 strcpy/stpcpy. I got up to 4X speed up on Core 2
and Core i7.  I disabled it on Atom since SSSE3 version is slower for
shorter (<64byte) data.
 2009-07-02 03:39:03 -07:00
Ulrich Drepper
e6bd12ddf7 Regenerated. 2009-06-30 05:33:52 -07:00
Ulrich Drepper
b38a2e2e64 Fix little checkin problem in last patch. 2009-06-30 04:41:38 -07:00
H.J. Lu
0181291385 Determine and store processor family and model on x86-64. 2009-06-30 04:39:09 -07:00
Andreas Schwab
80a98966c8 Fix text relocation on ppc32. 
The ____longjmp_chk implementation didn't load from memory the
right way.
 2009-06-25 08:56:20 -07:00
Andreas Schwab
3f241d7584 Fix cfa offset for saved registers in PPC sqrt implementations. 2009-06-24 11:36:57 -07:00
Ulrich Drepper
059215ae21 Clean up whitespaces in last patch. 2009-06-22 20:39:37 -07:00
H.J. Lu
772f4e6a1b Add SSE4.2 support for strcmp and strncmp on x86-64. 2009-06-22 20:38:41 -07:00
Ulrich Drepper
d0a2af7106 Add 802.15.4 definitions to header files. 2009-06-18 07:52:38 -07:00
Andreas Schwab
f60ddf9bf7 Don't treat bug reporting message as a format string. 2009-06-16 20:34:55 -07:00
Ulrich Drepper
f793b62438 Extend pt_chown to drop privileges. 
If libcap is available, use it to drop privileges in pt_chown before
starting the work to change the permissions and ownership of the
slave device.
 2009-06-16 15:58:07 -07:00
Jakub Jelinek
fab8238de6 Fix x86-64 memchr for large lengths. 2009-06-16 10:23:31 -07:00
Ryan S. Arnold
25bfbb9e0e Fix incorrect use of cmpldi in 32-bit PPC code. 
The 32-bit PowerPC POWER6 memcpy uses the cmpldi insn when it should use a cmplwi.
BZ #10107
 2009-06-16 08:29:04 -07:00
Ulrich Drepper
3c8770316b Add missing include. 2009-06-16 08:00:10 -07:00
Ulrich Drepper
b34de9ea81 Fold Linux-specific grantpt code into Unix version. 2009-06-16 07:59:09 -07:00
Ulrich Drepper
292e3abebf Fix permission of slave device on devpts if necessary. 
If devptr is misconfigured the slave device permission after grantpt
might not be 0620.  BZ #10166
 2009-06-15 22:56:51 -07:00
Ulrich Drepper
48dcd0ba84 Preserve message printed before abort. 
The terminal output etc is not visible in a core file.  The new
libc-internal variable __abort_msg will point to a string with the
message which has been printed before the abort in case abort is
called from inside libc.  BZ #10217
 2009-06-15 16:17:09 -07:00
Jakub Jelinek
0212596218 libc part of prelink IFUNC support. 
The dl-lookup.c changes are needed for prelink (support in prelink
checked into SVN, tested for both i?86 and x86-64), dl-irel.h just
something I discovered by code inspection.
 2009-06-15 07:46:53 -07:00
Ulrich Drepper
eb0b6cb6e1 Fix warnings when using <sys/select.h>. 
gcc 4.4 is more picky.  And the x86-64 version of <bits/select.h>
contained a now unnecessary asm optimization.  Remove it.
 2009-06-14 16:09:42 -07:00
Ulrich Drepper
b77c932329 Add SSE4.2 optimized rawmemchr implementation for x86-64. 2009-06-05 16:54:50 -07:00
Ulrich Drepper
6f9eea15bf Forgot some more cleanups for the SSE4.2 strlen on x86-64. 2009-06-05 11:51:59 -07:00
Ulrich Drepper
f85a9e72e2 Add missing cleanups from SSE4.2 x86-64 strlen. 2009-06-05 11:39:45 -07:00
Ulrich Drepper
3ab2d57a4d Optimize x86-64 strlen for SSE4.2. 
The SSE4.2 implementation is used in the DSO only.  The patch also adds
some infrastructure to be used in similar code later one.
 2009-06-05 11:32:00 -07:00
Ulrich Drepper
2f3f7b9da2 More small optimizations for x86-64 strlen. 2009-06-04 16:45:35 -07:00
Ulrich Drepper
747785f2b3 Tiny strlen for x86-64 optimization. 
I didn't remove an instruction from a previous version in the final
version.
 2009-06-04 10:54:29 -07:00
Ulrich Drepper
fd96f06208 Small optimization of STT_GNU_IFUNC handling. 
The test to call the indirect function now includes a subtest to
checked whether the symbol is defined.  When coming to that point
this is almost always the case.  The test for STT_GNU_IFUNC on the
other hand rarely is true.  Move it to the front means we don't have
to perform the second test unless really necessary.
 2009-06-01 11:49:05 -07:00
Ulrich Drepper
b7629ee33f Better error message for invalid relocatio in static binary. 2009-06-01 11:39:24 -07:00
Ulrich Drepper
8ea2372936 Fix up sched_cpucount in x86-64. 
Now that static executables can handle IFUNC functions don't exclude
optimization for sched_cpucount for !SHARED.
 2009-05-31 23:46:42 -07:00
Ulrich Drepper
7441470835 Finish IFUNC support for x86 and x86-64. 
Add support for the IRELAIVE relocation and IFUNC in static executables.
 2009-05-31 23:45:33 -07:00
Ulrich Drepper
963cb6fcb4 Simplify CPUID value handling. 
SO far Intel and AMD use exactly the same bits meaning the same
things in CPUID index 1.  Simplify the code.  Should an architecture
come along which doesn't use the same semantics then it must use a
different index value than COMMON_CPUID_INDEX_1.
 2009-05-31 17:52:05 -07:00
Ulrich Drepper
fd469aac31 Add missing file from accept4 commit. 
Hidden by previous .gitignore content.
 2009-05-31 17:46:55 -07:00
Ulrich Drepper
7f3394bdf3 Fix errno for boundary conditions in 128-bit long double. 
Similar to the changes which went already in for the other formats,
follow POSIX rules for errno.
 2009-05-29 12:00:22 -07:00
Ulrich Drepper
b8bb339f7d Implement longjmp checking for s390. 2009-05-29 11:58:04 -07:00