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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: Sun, 02 Aug 2015 17:41:00 -0000 [thread overview]
Message-ID: <bug-15128-131-pXJtPsVQaa@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 #23 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
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the project "GNU C Library master sources".
The branch, hjl/plt/master has been created
at d53574deb7a0f49da15eca67d01bc188b4f89948 (commit)
- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d53574deb7a0f49da15eca67d01bc188b4f89948
commit d53574deb7a0f49da15eca67d01bc188b4f89948
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=3b06f9e926254743bcf61a0971841312c737b2f1
commit 3b06f9e926254743bcf61a0971841312c737b2f1
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=5100a9262c79946feddb83ad46d8448312d0a792
commit 5100a9262c79946feddb83ad46d8448312d0a792
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=200eb0e798153aa644e6a6c551c685a25f1f0d1f
commit 200eb0e798153aa644e6a6c551c685a25f1f0d1f
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=6642aacc2b3f2779448f9878b9a320dd9bd184ab
commit 6642aacc2b3f2779448f9878b9a320dd9bd184ab
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 $(all-rtld-routines).
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f95bec159176aef22fb9465793b8fa5d354bea31
commit f95bec159176aef22fb9465793b8fa5d354bea31
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Jul 11 13:25:25 2015 -0700
Save and restore vector registers in x86-64 ld.so
This patch initiaizes GLRO(dl_x86_xstate) in dl_platform_init to
indicate if the processor supports SSE, AVX or AVX512. It uses
this information to properly save and restore vector registers in
ld.so. Now we can use SSE in ld.so and delete FOREIGN_CALL macros.
[BZ #15128]
* sysdeps/x86_64/Makefile [$(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=a018fe7a7229c3048dcd5765716b719905820f64
commit a018fe7a7229c3048dcd5765716b719905820f64
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=dececeb4701899392f987a0d9eb92fe8fd0e9e32
commit dececeb4701899392f987a0d9eb92fe8fd0e9e32
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=18a1650a345418cc2a4c83372cb4402d0da4535d
commit 18a1650a345418cc2a4c83372cb4402d0da4535d
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=1c1d5084bb4de396487418ca2fd96538e489100e
commit 1c1d5084bb4de396487418ca2fd96538e489100e
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:[~2015-08-02 17:41 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 [this message]
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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