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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/15128] dynamic loader may clobber floating-point parameters on AArch64
Date: Mon, 03 Aug 2015 19:32:00 -0000 [thread overview]
Message-ID: <bug-15128-131-8Q2aOv4Rgu@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-15128-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=15128
--- Comment #28 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".
The branch, hjl/plt/master has been created
at f6db06d3805c47ca7f0fd0bed17d32abb02689d3 (commit)
- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f6db06d3805c47ca7f0fd0bed17d32abb02689d3
commit f6db06d3805c47ca7f0fd0bed17d32abb02689d3
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Aug 2 22:27:47 2015 -0700
Don't run tst-getpid2 with LD_BIND_NOW=1
Since _dl_x86_64_save_sse and _dl_x86_64_restore_sse are removed now,
we don't need to run tst-getpid2 with LD_BIND_NOW=1.
* sysdeps/unix/sysv/linux/Makefile (tst-getpid2-ENV): Removed.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e9df5c18b1424d0b2c6e5f848fbd0ffa4f0ccf13
commit e9df5c18b1424d0b2c6e5f848fbd0ffa4f0ccf13
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=e54d30f31423f0e8c703a2dc0466bc4b492400d8
commit e54d30f31423f0e8c703a2dc0466bc4b492400d8
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=7448ae107ca0f19c96e0246892abb07e29949d6b
commit 7448ae107ca0f19c96e0246892abb07e29949d6b
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=0bbf91204e74db2c6f7a89990443c98d16ca7300
commit 0bbf91204e74db2c6f7a89990443c98d16ca7300
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=ca43850f17b4b366db6c43bce86f054bd8850e3b
commit ca43850f17b4b366db6c43bce86f054bd8850e3b
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 $(all-rtld-routines).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=698c7e058547f634639bbf06cfb88d572adfd6de
commit 698c7e058547f634639bbf06cfb88d572adfd6de
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Jul 11 13:25:25 2015 -0700
Save and restore vector registers in x86-64 ld.so
This patch initiaizes GLRO(dl_x86_xstate) in dl_platform_init to
indicate if the processor supports SSE, AVX or AVX512. It uses
this information to properly save and restore vector registers in
ld.so. Now we can use SSE in ld.so and delete FOREIGN_CALL macros.
[BZ #15128]
* sysdeps/x86_64/Makefile [$(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.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0622f480da5844b1f4c7f383fa71e8ed65a32264
commit 0622f480da5844b1f4c7f383fa71e8ed65a32264
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=23662bce8ea3a3b1c822e95efc71f1f8602eeaf8
commit 23662bce8ea3a3b1c822e95efc71f1f8602eeaf8
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=ffc7fb0b97ba9a4f97800003077ff678a235fc8f
commit ffc7fb0b97ba9a4f97800003077ff678a235fc8f
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=40d3b80e0767dd3dc102d6fb544d9ef0c610c207
commit 40d3b80e0767dd3dc102d6fb544d9ef0c610c207
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=6427f82096f4d75a46801672360dda2082eb1ce4
commit 6427f82096f4d75a46801672360dda2082eb1ce4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jul 31 13:46:05 2015 -0700
Update libmvec multiarch functions for <cpu-features.h>
This patch updates libmvec multiarch functions to use the newly defined
HAS_CPU_FEATURE, HAS_ARCH_FEATURE and LOAD_RTLD_GLOBAL_RO_RDX from
<cpu-features.h>.
* math/Makefile ($(addprefix $(objpfx), $(libm-vec-tests))):
Remove $(objpfx)init-arch.o.
* sysdeps/x86_64/fpu/Makefile (libmvec-support): Remove
init-arch.
* sysdeps/x86_64/fpu/math-tests-arch.h (avx_usable): Removed.
(INIT_ARCH_EXT): Defined as empty.
(CHECK_ARCH_EXT): Replace HAS_XXX with HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S: Remove
__init_cpu_features call. Replace HAS_XXX with
HAS_CPU_FEATURE/HAS_ARCH_FEATURE (XXX).
* sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos2_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf4_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf8_core.S: Likewise.
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next prev parent reply other threads:[~2015-08-03 19:32 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-09 17:03 [Bug dynamic-link/15128] New: " mikpe at it dot uu.se
2013-02-09 17:04 ` [Bug dynamic-link/15128] " mikpe at it dot uu.se
2013-02-11 5:00 ` bugdal at aerifal dot cx
2013-02-11 7:21 ` Ondřej Bílka
2013-02-11 7:21 ` neleai at seznam dot cz
2013-02-11 9:09 ` mikpe at it dot uu.se
2013-02-11 13:36 ` bugdal at aerifal dot cx
2013-02-11 15:13 ` mikpe at it dot uu.se
2013-02-11 21:38 ` bugdal at aerifal dot cx
2013-02-13 9:32 ` mikpe at it dot uu.se
2013-02-20 18:12 ` carlos at redhat dot com
2013-02-24 18:11 ` amonakov at gmail dot com
2013-02-24 18:13 ` amonakov at gmail dot com
2013-02-25 8:06 ` aj at suse dot de
2013-05-21 12:59 ` marcus.shawcroft at linaro dot org
2013-10-02 22:15 ` neleai at seznam dot cz
2013-12-18 12:08 ` cvs-commit at gcc dot gnu.org
2013-12-19 14:04 ` cvs-commit at gcc dot gnu.org
2013-12-19 14:10 ` marcus.shawcroft at linaro dot org
2014-06-13 18:52 ` fweimer at redhat dot com
2015-07-31 12:33 ` cvs-commit at gcc dot gnu.org
2015-08-01 15:55 ` cvs-commit at gcc dot gnu.org
2015-08-01 22:23 ` cvs-commit at gcc dot gnu.org
2015-08-01 22:25 ` cvs-commit at gcc dot gnu.org
2015-08-02 3:55 ` cvs-commit at gcc dot gnu.org
2015-08-02 12:33 ` cvs-commit at gcc dot gnu.org
2015-08-02 13:57 ` cvs-commit at gcc dot gnu.org
2015-08-02 17:41 ` cvs-commit at gcc dot gnu.org
2015-08-02 17:43 ` cvs-commit at gcc dot gnu.org
2015-08-03 4:47 ` cvs-commit at gcc dot gnu.org
2015-08-03 4:50 ` cvs-commit at gcc dot gnu.org
2015-08-03 17:21 ` cvs-commit at gcc dot gnu.org
2015-08-03 19:32 ` cvs-commit at gcc dot gnu.org [this message]
2015-08-03 21:25 ` cvs-commit at gcc dot gnu.org
2015-08-03 21:36 ` cvs-commit at gcc dot gnu.org
2015-08-05 14:34 ` cvs-commit at gcc dot gnu.org
2015-08-05 14:35 ` cvs-commit at gcc dot gnu.org
2015-08-07 22:45 ` jsweval at arxan dot com
2015-08-19 12:19 ` cvs-commit at gcc dot gnu.org
2015-08-24 13:19 ` cvs-commit at gcc dot gnu.org
2015-08-25 11:31 ` cvs-commit at gcc dot gnu.org
2015-08-25 11:53 ` cvs-commit at gcc dot gnu.org
2023-12-08 9:28 ` liqingqing3 at huawei dot com
2023-12-08 10:37 ` fweimer at redhat dot com
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