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[Bug dynamic-link/18134] x86 ld.so doesn't preserve bound registers
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Sun, 02 Aug 2015 17:43:27 +0000
- Subject: [Bug dynamic-link/18134] x86 ld.so doesn't preserve bound registers
- Auto-submitted: auto-generated
- References: <bug-18134-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=18134
--- Comment #7 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
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The branch, hjl/plt/2.21 has been created
at adf2bca6cef858265c67d36fb762ad8d094cf8e6 (commit)
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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=adf2bca6cef858265c67d36fb762ad8d094cf8e6
commit adf2bca6cef858265c67d36fb762ad8d094cf8e6
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jul 29 04:49:38 2015 -0700
Use SSE optimized strcmp in x86-64 ld.so
Since ld.so preserves vector registers now, we can SSE optimized strcmp
in x86-64 ld.so.
* sysdeps/x86_64/strcmp.S: Remove "#if !IS_IN (libc)".
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ea6b54e9214abaf37faf988eda0b55adf734d7ba
commit ea6b54e9214abaf37faf988eda0b55adf734d7ba
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jul 29 03:56:14 2015 -0700
Remove x86-64 rtld-xxx.c and rtld-xxx.S
Since ld.so preserves vector registers now, we can use the regular,
non-ifunc string and memory functions in ld.so.
* sysdeps/x86_64/rtld-memcmp.c: Removed.
* sysdeps/x86_64/rtld-memset.S: Likewise.
* sysdeps/x86_64/rtld-strchr.S: Likewise.
* sysdeps/x86_64/rtld-strlen.S: Likewise.
* sysdeps/x86_64/multiarch/rtld-memcmp.c: Likewise.
* sysdeps/x86_64/multiarch/rtld-memset.S: Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=684b6047c2f84671dac9fa790f4cdc1416325e0b
commit 684b6047c2f84671dac9fa790f4cdc1416325e0b
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jul 29 03:47:54 2015 -0700
Replace %xmm8 with %xmm0
Since ld.so preserves vector registers now, we can use %xmm0 to avoid
the REX prefix.
* sysdeps/x86_64/memset.S: Replace %xmm8 with %xmm0.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9f41fc798f5c830cd909e6a849c676223240efc9
commit 9f41fc798f5c830cd909e6a849c676223240efc9
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jul 29 03:44:39 2015 -0700
Replace %xmm[8-12] with %xmm[0-4]
Since ld.so preserves vector registers now, we can use %xmm[0-4] to
avoid the REX prefix.
* sysdeps/x86_64/strlen.S: Replace %xmm[8-12] with %xmm[0-4].
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7d973940b6e8b281cdf53d6f66ac5305a478ebf9
commit 7d973940b6e8b281cdf53d6f66ac5305a478ebf9
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jul 28 18:56:18 2015 -0700
Don't disable SSE in x86-64 ld.so
Since ld.so preserves vector registers now, we can use SSE in ld.so.
* sysdeps/i386/Makefile [$(subdir) == elf] (CFLAGS-.os): Add
-mno-sse -mno-mmx for $(all-rtld-routines).
[$(subdir) == elf] (tests-special): Add
$(objpfx)tst-ld-sse-use.out.
[$(subdir) == elf] ($(objpfx)tst-ld-sse-use.out): New rule.
* sysdeps/x86/Makefile [$(subdir) == elf] (CFLAGS-.os): Removed.
[$(subdir) == elf] (tests-special): Likewise.
[$(subdir) == elf] ($(objpfx)tst-ld-sse-use.out): Likewise.
* sysdeps/x86_64/Makefile [$(subdir) == elf] (CFLAGS-.os): Add
-mno-mmx for $(all-rtld-routines).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=07ce37a6da7d00fb331736331031e371cbe753a8
commit 07ce37a6da7d00fb331736331031e371cbe753a8
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Jul 11 13:25:25 2015 -0700
Save and restore vector registers in x86-64 ld.so
This patch initiaizes GLRO(dl_x86_xstate) in dl_platform_init to
indicate if the processor supports SSE, AVX or AVX512. It uses
this information to properly save and restore vector registers in
ld.so. Now we can use SSE in ld.so and delete FOREIGN_CALL macros.
[BZ #15128]
* sysdeps/x86_64/Makefile [$(subdir) == elf] (tests): Add
ifuncmain8.
(modules-names): Add ifuncmod8.
($(objpfx)ifuncmain8): New rule.
* sysdeps/x86_64/dl-machine.h: Include <dl-procinfo.h> and
<cpuid.h>.
(elf_machine_runtime_setup): Use _dl_runtime_resolve_sse,
_dl_runtime_resolve_avx, or _dl_runtime_resolve_avx512,
_dl_runtime_profile_sse, _dl_runtime_profile_avx, or
_dl_runtime_profile_avx512, based on HAS_ARCH_FEATURE.
* sysdeps/x86_64/dl-trampoline.S: Rewrite.
* sysdeps/x86_64/dl-trampoline.h: Likewise.
* sysdeps/x86_64/ifuncmain8.c: New file.
* sysdeps/x86_64/ifuncmod8.c: Likewise.
* sysdeps/x86_64/nptl/tcb-offsets.sym (RTLD_SAVESPACE_SSE):
Removed.
* sysdeps/x86_64/nptl/tls.h (__128bits): Removed.
(tcbhead_t): Change rtld_must_xmm_save to __glibc_unused1.
Change rtld_savespace_sse to __glibc_unused2.
(RTLD_CHECK_FOREIGN_CALL): Removed.
(RTLD_ENABLE_FOREIGN_CALL): Likewise.
(RTLD_PREPARE_FOREIGN_CALL): Likewise.
(RTLD_FINALIZE_FOREIGN_CALL): Likewise.
Fix tcbhead_t
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2fede219d1005f41a04aab125ec49b7c1456236f
commit 2fede219d1005f41a04aab125ec49b7c1456236f
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Jul 12 14:41:20 2015 -0700
Align stack when calling __errno_location
We should align stack to 16 bytes when calling __errno_location.
[BZ #18661]
* sysdeps/x86_64/fpu/s_cosf.S (__cosf): Align stack to 16 bytes
when calling __errno_location.
* sysdeps/x86_64/fpu/s_sincosf.S (__sincosf): Likewise.
* sysdeps/x86_64/fpu/s_sinf.S (__sinf): Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3a538a8e9905c07a3a60b998e31b8c5ac73a4a58
commit 3a538a8e9905c07a3a60b998e31b8c5ac73a4a58
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Jul 12 14:40:25 2015 -0700
Align stack to 16 bytes when calling __gettimeofday
Subtract stack by 24 bytes instead of 16 bytes so that stack is aligned
to 16 bytes when calling __gettimeofday.
[BZ #18661]
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
(__lll_timedwait_tid): Align stack to 16 bytes when calling
__gettimeofday.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=69acbbd5ca5a54520cfc107bacc3b71e69ec0d2d
commit 69acbbd5ca5a54520cfc107bacc3b71e69ec0d2d
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Jul 12 14:38:58 2015 -0700
Align stack to 16 bytes when calling __setcontext
Don't use pop to restore %rdi so that stack is aligned to 16 bytes
when calling __setcontext.
[BZ #18661]
* sysdeps/unix/sysv/linux/x86_64/__start_context.S
(__start_context): Don't use pop to restore %rdi so that stack
is aligned to 16 bytes when calling __setcontext.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2b58e5d85955174dde6a9304002adb79d2681ca3
commit 2b58e5d85955174dde6a9304002adb79d2681ca3
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jul 29 03:41:58 2015 -0700
Compile {memcpy,strcmp}-sse2-unaligned.S only for libc
{memcpy,strcmp}-sse2-unaligned.S aren't needed in ld.so.
* sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S: Compile
only for libc.
* sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S: Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5d7a32c16a65d27b73d01556a30fb138338639f1
commit 5d7a32c16a65d27b73d01556a30fb138338639f1
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Aug 1 07:47:16 2015 -0700
Update x86 elision-conf.c for <cpu-features.h>
This patch updates x86 elision-conf.c to use the newly defined
HAS_CPU_FEATURE from <cpu-features.h>.
* sysdeps/unix/sysv/linux/x86/elision-conf.c (elision_init):
Replace HAS_RTM with HAS_CPU_FEATURE (RTM).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=da0e27c6c7266df2107c7a4825cf2eb2d6360d28
commit da0e27c6c7266df2107c7a4825cf2eb2d6360d28
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jul 31 16:52:19 2015 -0700
Update i686 multiarch functions for <cpu-features.h>
This patch updates i686 multiarch functions to use the newly defined
HAS_CPU_FEATURE, HAS_ARCH_FEATURE, LOAD_GOT_AND_RTLD_GLOBAL_RO and
LOAD_FUNC_GOT_EAX from <cpu-features.h>.
* sysdeps/i386/i686/fpu/multiarch/e_expf.c: Replace HAS_XXX
with HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/i386/i686/fpu/multiarch/s_cosf.c: Likewise.
* sysdeps/i386/i686/fpu/multiarch/s_cosf.c: Likewise.
* sysdeps/i386/i686/fpu/multiarch/s_sincosf.c: Likewise.
* sysdeps/i386/i686/fpu/multiarch/s_sinf.c: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-impl-list.c: Likewise.
* sysdeps/i386/i686/multiarch/s_fma.c: Likewise.
* sysdeps/i386/i686/multiarch/s_fmaf.c: Likewise.
* sysdeps/i386/i686/multiarch/bcopy.S: Remove __init_cpu_features
call. Merge SHARED and !SHARED. Add LOAD_GOT_AND_RTLD_GLOBAL_RO.
Use LOAD_FUNC_GOT_EAX to load function address. Replace HAS_XXX
with HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/i386/i686/multiarch/bzero.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memset.S: Likewise.
* sysdeps/i386/i686/multiarch/memset_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/rawmemchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strcasecmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat.S: Likewise.
* sysdeps/i386/i686/multiarch/strchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/strcspn.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strncase.S: Likewise.
* sysdeps/i386/i686/multiarch/strnlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strspn.S: Likewise.
* sysdeps/i386/i686/multiarch/wcschr.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscmp.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy.S: Likewise.
* sysdeps/i386/i686/multiarch/wcslen.S: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/wmemcmp.S: Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a7be9410184a405f4f1347302afe0b625146cdab
commit a7be9410184a405f4f1347302afe0b625146cdab
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jul 31 13:41:04 2015 -0700
Update x86_64 multiarch functions for <cpu-features.h>
This patch updates x86_64 multiarch functions to use the newly defined
HAS_CPU_FEATURE, HAS_ARCH_FEATURE and LOAD_RTLD_GLOBAL_RO_RDX from
<cpu-features.h>.
* sysdeps/x86_64/fpu/multiarch/e_asin.c: Replace HAS_XXX with
HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/fpu/multiarch/e_atan2.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/e_exp.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/e_log.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/e_pow.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_atan.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_fma.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_fmaf.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_sin.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_tan.c: Likewise.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c: Likewise.
* sysdeps/x86_64/multiarch/sched_cpucount.c: Likewise.
* sysdeps/x86_64/multiarch/strstr.c: Likewise.
* sysdeps/x86_64/multiarch/memmove.c: Likewise.
* sysdeps/x86_64/multiarch/memmove_chk.c: Likewise.
* sysdeps/x86_64/multiarch/test-multiarch.c: Likewise.
* sysdeps/x86_64/multiarch/memcmp.S: Remove __init_cpu_features
call. Add LOAD_RTLD_GLOBAL_RO_RDX. Replace HAS_XXX with
HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/multiarch/memcpy.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memset.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
* sysdeps/x86_64/multiarch/strcat.S: Likewise.
* sysdeps/x86_64/multiarch/strchr.S: Likewise.
* sysdeps/x86_64/multiarch/strcmp.S: Likewise.
* sysdeps/x86_64/multiarch/strcpy.S: Likewise.
* sysdeps/x86_64/multiarch/strcspn.S: Likewise.
* sysdeps/x86_64/multiarch/strspn.S: Likewise.
* sysdeps/x86_64/multiarch/wcscpy.S: Likewise.
* sysdeps/x86_64/multiarch/wmemcmp.S: Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2f99aa146788d958bf202ce51e070c31af84a570
commit 2f99aa146788d958bf202ce51e070c31af84a570
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jul 31 07:30:04 2015 -0700
Add _dl_x86_cpu_features to rtld_global in ld.so
This patch adds _dl_x86_cpu_features to rtld_global in x86 ld.so
and initializes it early before __libc_start_main is called so that
cpu_features is always available when it is used and we can avoid
calling __init_cpu_features in IFUNC selectors.
* sysdeps/i386/dl-machine.h: Include <cpu-features.c>.
(dl_platform_init): Call init_cpu_features.
* sysdeps/i386/dl-procinfo.c (_dl_x86_cpu_features): New.
* sysdeps/i386/i686/cacheinfo.c
(DISABLE_PREFERRED_MEMORY_INSTRUCTION): Removed.
* sysdeps/i386/i686/multiarch/ifunc-defines.sym (KIND_OFFSET):
Removed.
* sysdeps/i386/ldsodefs.h: Include <cpu-features.h>.
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.c: Include
<sysdeps/x86_64/dl-procinfo.c> instead of
sysdeps/generic/dl-procinfo.c>.
* sysdeps/x86/Makefile [$(subdir) == csu] (gen-as-const-headers):
Add cpu-features-offsets.sym and rtld-global-offsets.sym.
* sysdeps/x86/cpu-features-offsets.sym: New file.
* sysdeps/x86/cpu-features.c: Likewise.
* sysdeps/x86/cpu-features.h: Likewise.
* sysdeps/x86/libc-start.c: Likewise.
* sysdeps/x86/rtld-global-offsets.sym: Likewise.
* sysdeps/x86_64/dl-procinfo.c: Likewise.
* sysdeps/x86_64/cacheinfo.c (__cpuid_count): Removed.
Assume USE_MULTIARCH is defined and don't check it.
(is_intel): Replace __cpu_features with GLRO(dl_x86_cpu_features).
(is_amd): Likewise.
(max_cpuid): Likewise.
(intel_check_word): Likewise.
(__cache_sysconf): Don't call __init_cpu_features.
(__x86_preferred_memory_instruction): Removed.
(init_cacheinfo): Don't call __init_cpu_features. Replace
__cpu_features with GLRO(dl_x86_cpu_features).
* sysdeps/x86_64/dl-machine.h: <cpu-features.c>.
(dl_platform_init): Call init_cpu_features.
* sysdeps/x86_64/ldsodefs.h: Include <cpu-features.h>.
* sysdeps/x86_64/multiarch/cacheinfo.c: Removed.
* sysdeps/x86_64/multiarch/ifunc-defines.sym (KIND_OFFSET):
Removed.
* sysdeps/x86_64/multiarch/init-arch.c: Rewrite.
* sysdeps/x86_64/multiarch/init-arch.h: Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fdd3aa0b19700ab564da895a2a85bf3fdb0bedf0
commit fdd3aa0b19700ab564da895a2a85bf3fdb0bedf0
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Jul 9 09:30:09 2015 -0700
Improve bndmov encoding with zero displacement
If x86-64 assembler doesn't support MPX, we encode bndmov instruction by
hand. When displacement is zero, assembler generates shorter encoding.
This patch improves bndmov encoding with zero displacement so that ld.so
is identical when using assemblers with and without MPX support.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve): Improve
bndmov encoding with zero displacement.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9e4fc7f67f6695f294ae759a6b540f5d08a56f0c
commit 9e4fc7f67f6695f294ae759a6b540f5d08a56f0c
Author: Igor Zamyatin <igor.zamyatin@intel.com>
Date: Thu Jul 9 06:50:12 2015 -0700
Preserve bound registers for pointer pass/return
We need to save/restore bound registers and add a BND prefix before
branches in _dl_runtime_profile so that bound registers for pointer
pass and return are preserved when LD_AUDIT is used.
[BZ #18134]
* sysdeps/i386/configure.ac: Set HAVE_MPX_SUPPORT.
* sysdeps/i386/configure: Regenerated.
* sysdeps/i386/dl-trampoline.S (PRESERVE_BND_REGS_PREFIX): New.
(_dl_runtime_profile): Save and restore Intel MPX return bound
registers when calling _dl_call_pltexit. Add
PRESERVE_BND_REGS_PREFIX before return.
* sysdeps/i386/link-defines.sym (LRV_BND0_OFFSET): New.
(LRV_BND1_OFFSET): Likewise.
* sysdeps/x86/bits/link.h (La_i86_retval): Add lrv_bnd0 and
lrv_bnd1.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Fix
typo in bndmov encoding.
* sysdeps/x86_64/dl-trampoline.h: Properly save and restore
Intel MPX bound registers. Add PRESERVE_BND_REGS_PREFIX before
branch instructions to preserve bounds.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b15f277bac14482c8b2dda4931ebf919644932fa
commit b15f277bac14482c8b2dda4931ebf919644932fa
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Mar 16 14:58:43 2015 -0700
Preserve bound registers in _dl_runtime_resolve
We need to add a BND prefix before indirect branch at the end of
_dl_runtime_resolve to preserve bound registers.
[BZ #18134]
* sysdeps/x86_64/dl-trampoline.S (PRESERVE_BND_REGS_PREFIX): New.
(_dl_runtime_resolve): Add a BND prefix before indirect branch.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=20f87a053b1e6a9106851f764c205d59fd4b6879
commit 20f87a053b1e6a9106851f764c205d59fd4b6879
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jul 7 05:23:24 2015 -0700
Add and use sysdeps/i386/link-defines.sym
Define macros for fields in La_i86_regs and La_i86_retval and use them
in dl-trampoline.S, instead of hardcoded values.
* sysdeps/i386/Makefile (gen-as-const-headers)[elf]: Add
link-defines.sym.
* sysdeps/i386/dl-trampoline.S: Include <link-defines.h>.
(_dl_runtime_profile): Use LONG_DOUBLE_SIZE, LRV_SIZE,
LRV_EAX_OFFSET, LRV_EDX_OFFSET, LRV_ST0_OFFSET, LRV_ST1_OFFSET
and LR_SIZE.
* sysdeps/i386/link-defines.sym: New file.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d6fd297566e2389ab855325754bcb25f604c6b7d
commit d6fd297566e2389ab855325754bcb25f604c6b7d
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jul 7 05:09:16 2015 -0700
Add a testcase for i386 LD_AUDIT
This patch adds a testcase for i386 LD_AUDIT to check function return
and parameters passed in registers.
* sysdeps/i386/Makefile (tests)[elf]: Add tst-audit3.
(modules-names): Add tst-auditmod3a tst-auditmod3b.
($(objpfx)tst-audit3): New rule.
($(objpfx)tst-audit3.out): Likewise.
* sysdeps/i386/tst-audit3.c: New file.
* sysdeps/i386/tst-audit3.h: Likewise.
* sysdeps/i386/tst-auditmod3a.c: Likewise.
* sysdeps/i386/tst-auditmod3b.c: Likewise.
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