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The SSE4.2 implementation is used in the DSO only. The patch also adds
some infrastructure to be used in similar code later one.
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Old binutils don't provide IFUNC and don't generate the section start/end
symbols we expect. At least for now only add the initializer code for
static IFUNC relocations if multi-arch support is requested.
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I didn't remove an instruction from a previous version in the final
version.
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Little typo could cause additional characters to be printed.
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There is some existing practice in other OSes and it's trivial to
implement giving the existing code. Fixes BZ #10221.
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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.
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Now that static executables can handle IFUNC functions don't exclude
optimization for sched_cpucount for !SHARED.
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Add support for the IRELAIVE relocation and IFUNC in static executables.
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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.
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Similar to the changes which went already in for the other formats,
follow POSIX rules for errno.
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This saves about 1.5kB in the DSO.
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After the last addition to the math test suite PPC routines haven't
been adjusted so far.
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So far accept4 was only supported on archs using socketcall for x86.
This patch adds support for the remaining archs.
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The latest stratcliff extension exposed a bug in the IA-64 memchr which
uses non-speculative loads to prefetch data. Change the code to use
speculative loads with appropriate fixup. Fixes BZ 10162.
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The ____longjmp_chk functions on x86 and x86-64 were placed in .rodata.str1.1.
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This definition was meant to be removed before the checkin. It was
used in the development.
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The header had the old name (paccept).
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Following the previous changes for x86 and x86-64.
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There are two issues with the forced loop exit in the nscd lookup:
1. the estimate of the entry size isn't pessimistic enough for all
databases, resulting potentially is too early exits
2. the combination of 64-bit process and 32-bit nscd would lead to
rejecting valid records in the database.
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This fixes BZ #10159. The stdlib.h definition was out of date.
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The move to nscd-client.h was only needed for some interim version
of the patch. The final version doesn't need it. Undo the change.
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The patch to bound the search in the nscd caches used a wrong exit
condition. Fixed now.
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We can compute an absolute maximum for the number of elements which
can fit into the currently mapped database. Stop after that many
iterations.
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The nscd database mapped in processes can change at any time. We
have to be more vigilant when it comes to using that memory. Test
the data entries are valid in their entire size, don't read data
again from memory once we verified it, and make sure the trailing
pointer is not going off the deep end.
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If longjmp restores the stack frame to an address which is beyond
the stack frame at the time of the longjmp call it would install
an uninitialized stack frame. If compiled with _FORTIFY_SOURCE
defined, longjmp will now bail out in this situation.
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Add a text program, built to run on the host, to check all newly
built DSOs for executable stacks and fail if the stack information
is missing or indicates executable stacks.
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* nss/getXXbyYY_r.c: If NO_COMPAT_NEEDED is defined don't define any
compatibility functions.
* nss/getXXent_r.c: Likewise.
* gshadow/getsgent_r.c: Define NO_COMPAT_NEEDED.
* gshadow/getsgnam_r.c: Likewise.
* gshadow/Version: Remove duplicate entries.
* sysdeps/x86_64/cacheinfo.c (intel_02_cache_info): Add missing entries
for recent processor.
* sysdeps/unix/sysv/linux/i386/sysconf.c (intel_02_cache_info):
Likewise.
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same place we add ASFLAGS-config.
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* include/features.h (__GLIBC_MINOR__): Bump to 10.
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2009-05-05 Aurelien Jarno <aurelien@aurel32.net>
[BZ #10128]
* resolv/res_query.c (__libc_res_nquery): If one query returns NOTIMP
or FORMERR and the other NOERROR, don't raise an error.
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2009-05-06 Ryan S. Arnold <rsa@us.ibm.com>
[BZ #10118]
* Makeconfig (+asflags): New variable based upon ASFLAG or
asflags-cpu.
(ASFLAGS): Add override to set ASFLAGS to +asflags.
* config.make.in (asflags-cpu): Add variable based upon
@libc_cv_cc_submachine@ to propagate -mcpu=CPU from --with-cpu=CPU to
the assembler.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/setcontext.S:
Remove unneeded file now that the assembler emits _ARCH_PWR6 and
recognizes power6 instruction set due to passing -mcpu=power6 from
--with-cpu=power6 when compiling .S files.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/swapcontext.S:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/setcontext.S:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/swapcontext.S:
Likewise.
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STRNLEN, MEMCHR, STRNCPY, STPNCPY, MEMCPY, MEMPCPY and memccpy
at the end of the page.
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