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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: Fri, 31 Jul 2015 12:33:00 -0000 [thread overview]
Message-ID: <bug-15128-131-k1dYLBGr1v@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 #16 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/pr18661 has been created
at 2e4cca72c25aa2a3a0da59c651ca69320b16bfff (commit)
- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2e4cca72c25aa2a3a0da59c651ca69320b16bfff
commit 2e4cca72c25aa2a3a0da59c651ca69320b16bfff
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=3600e9c49c921bf4f788fb55321d1fb3824abf2d
commit 3600e9c49c921bf4f788fb55321d1fb3824abf2d
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=45e6b0f0009e3499f924d003746b6994cb9dff3c
commit 45e6b0f0009e3499f924d003746b6994cb9dff3c
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=8a9d5ef56db422846842aae87be3347382aff070
commit 8a9d5ef56db422846842aae87be3347382aff070
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=442e00b6d245a40075b9a58e2783c8395abce62c
commit 442e00b6d245a40075b9a58e2783c8395abce62c
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] ($(objpfx)tst-ld-sse-use.out): New rule.
* sysdeps/x86/Makefile: Removed.
* sysdeps/x86_64/Makefile [$(subdir) == elf] (CFLAGS-.os): Add
-mno-mmx for $(all-rtld-routines).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=72185dfbf09bab8333c1245f11af0f7697ca1c03
commit 72185dfbf09bab8333c1245f11af0f7697ca1c03
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Jul 11 13:25:25 2015 -0700
Save and restore vector registers in x86-64 ld.so
This patch initiaizes GLRO(dl_x86_xstate) in dl_platform_init to
indicate if the processor supports SSE, AVX or AVX512. It uses
this information to properly save and restore vector registers in
ld.so. Now we can use SSE in ld.so and delete FOREIGN_CALL macros.
We can also retire the rtld_must_xmm_save field and remove the
rtld_savespace_sse field in tcbhead_t. It is safe since they are
internal to glibc.
[BZ #15128]
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.c: Include
<sysdeps/x86_64/dl-procinfo.c> instead of
<sysdeps/generic/dl-procinfo.c>.
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.h: Include
<sysdeps/x86_64/dl-procinfo.h> instead of
<sysdeps/generic/dl-procinfo.h>.
* sysdeps/x86_64/Makefile [$(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 GLRO(dl_x86_xstate).
(dl_platform_init): Set GLRO(dl_x86_xstate) based on cpuid.
* sysdeps/x86_64/dl-procinfo.c: New file.
* sysdeps/x86_64/dl-procinfo.h: Likewise.
* sysdeps/x86_64/ifuncmain8.c: Likewise.
* sysdeps/x86_64/ifuncmod8.c: Likewise.
* sysdeps/x86_64/dl-trampoline.S: Rewrite.
* sysdeps/x86_64/dl-trampoline.h: 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.
Remove rtld_savespace_sse and __padding.
(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=a955dc4b8be25f9288dfaad15ef14a083be2ca78
commit a955dc4b8be25f9288dfaad15ef14a083be2ca78
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=16dcea99081d9f4a7fb2fadf13a69ff480feb30f
commit 16dcea99081d9f4a7fb2fadf13a69ff480feb30f
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=497480af688602f69dc1e49113106d6fcdff3d4d
commit 497480af688602f69dc1e49113106d6fcdff3d4d
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=46c362d7c702b3ea2fb4e4a17cd633671793fa21
commit 46c362d7c702b3ea2fb4e4a17cd633671793fa21
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.
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next prev parent reply other threads:[~2015-07-31 12:33 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 [this message]
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
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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