* sysdeps/mach/hurd/bits/libc-lock.h
(__libc_cleanup_push, __libc_cleanup_pop): New macros.
2003-08-01 Alfred M. Szmidt <ams@kemisten.nu>
* sysdeps/i386/dl-procinfo.h: New file, contents taken from ...
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: ... here.
#include_next dl-procinfo.h to get them.
(_DL_HWCAP_COUNT): Moved to sysdeps/i386/dl-procinfo.h.
(_DL_PLATFORMS_COUNT): Likewise.
(_DL_FIRST_PLATFORM): Likewise.
(_DL_HWCAP_PLATFORM): Likewise.
(HWCAP_I386_FPU, HWCAP_I386_VME, HWCAP_I386_DE, HWCAP_I386_PSE,
HWCAP_I386_TSC, HWCAP_I386_MSR, HWCAP_I386_PAE, HWCAP_I386_MCE,
HWCAP_I386_CX8, HWCAP_I386_APIC, HWCAP_I386_SEP, HWCAP_I386_MTRR,
HWCAP_I386_PGE, HWCAP_I386_MCA, HWCAP_I386_CMOV,
HWCAP_I386_FCMOV, HWCAP_I386_MMX, HWCAP_I386_OSFXSR,
HWCAP_I386_XMM, HWCAP_I386_XMM2, HWCAP_I386_AMD3D,
HWCAP_IMPORTANT): Likewise.
(_DL_PROCINFO_H_): Likewise.
(_dl_hwcap_string, _dl_platform_string, _dl_string_hwcap): Likewise.
(_dl_string_platform): Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.c: Moved to ...
* sysdeps/i386/dl-procinfo.c: ... here, new file.
2003-09-25 03:55:10 +00:00
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/* Data for i386 version of processor capability information.
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2021-01-02 19:32:25 +00:00
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Copyright (C) 2001-2021 Free Software Foundation, Inc.
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2001-01-17 01:14:51 +00:00
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This file is part of the GNU C Library.
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2002-02-01 07:49:47 +00:00
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
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2001-01-17 01:14:51 +00:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 04:58:11 +00:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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2001-01-17 01:14:51 +00:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 04:58:11 +00:00
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Lesser General Public License for more details.
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2001-01-17 01:14:51 +00:00
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2001-07-06 04:58:11 +00:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2001-01-17 01:14:51 +00:00
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x86: Set dl_platform and dl_hwcap from CPU features [BZ #21391]
dl_platform and dl_hwcap are set from AT_PLATFORM and AT_HWCAP very
early during startup. They are used by dynamic linker to determine
platform and build an array of hardware capability names, which are
added to search path when loading shared object. dl_platform and
dl_hwcap are unused on x86-64. On i386, i386, i486, i586 and i686
platforms were supported and only SSE2 capability was used.
On x86, usage of AT_PLATFORM and AT_HWCAP to determine platform and
processor capabilities is obsolete since all information is available
in dl_x86_cpu_features. This patch sets dl_platform and dl_hwcap from
dl_x86_cpu_features in dynamic linker. On i386, the available plaforms
are changed to i586 and i686 since i386 has been deprecated. On x86-64,
the available plaforms are haswell, which is for Haswell class processors
with BMI1, BMI2, LZCNT, MOVBE, POPCNT, AVX2 and FMA, and xeon_phi, which
is for Xeon Phi class processors with AVX512F, AVX512CD, AVX512ER and
AVX512PF. A capability, avx512_1, is also added to x86-64 for AVX512
ISAs: AVX512F, AVX512CD, AVX512BW, AVX512DQ and AVX512VL.
[BZ #21391]
* sysdeps/i386/dl-machine.h (dl_platform_init) [IS_IN (rtld)]:
Only call init_cpu_features.
[!IS_IN (rtld)]: Only set GLRO(dl_platform) to NULL if needed.
* sysdeps/x86_64/dl-machine.h (dl_platform_init): Likewise.
* sysdeps/i386/dl-procinfo.h: Removed.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Don't include
<sysdeps/i386/dl-procinfo.h> nor <ldsodefs.h>. Include
<sysdeps/x86/dl-procinfo.h>.
(_dl_procinfo): Replace _DL_HWCAP_COUNT with 32.
* sysdeps/unix/sysv/linux/x86_64/dl-procinfo.h [!IS_IN (ldconfig)]:
Include <sysdeps/x86/dl-procinfo.h> instead of
<sysdeps/generic/dl-procinfo.h>.
* sysdeps/x86/cpu-features.c: Include <dl-hwcap.h>.
(init_cpu_features): Set dl_platform, dl_hwcap and dl_hwcap_mask.
* sysdeps/x86/cpu-features.h (bit_cpu_LZCNT): New.
(bit_cpu_MOVBE): Likewise.
(bit_cpu_BMI1): Likewise.
(bit_cpu_BMI2): Likewise.
(index_cpu_BMI1): Likewise.
(index_cpu_BMI2): Likewise.
(index_cpu_LZCNT): Likewise.
(index_cpu_MOVBE): Likewise.
(index_cpu_POPCNT): Likewise.
(reg_BMI1): Likewise.
(reg_BMI2): Likewise.
(reg_LZCNT): Likewise.
(reg_MOVBE): Likewise.
(reg_POPCNT): Likewise.
* sysdeps/x86/dl-hwcap.h: New file.
* sysdeps/x86/dl-procinfo.h: Likewise.
* sysdeps/x86/dl-procinfo.c (_dl_x86_hwcap_flags): New.
(_dl_x86_platforms): Likewise.
2017-05-03 20:42:42 +00:00
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/* If anything should be added here check whether the size of each string
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2002-02-01 07:49:47 +00:00
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is still ok with the given array size.
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2001-01-17 01:14:51 +00:00
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2004-07-10 20:00:44 +00:00
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All the #ifdefs in the definitions are quite irritating but
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2002-02-01 07:49:47 +00:00
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necessary if we want to avoid duplicating the information. There
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are three different modes:
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- PROCINFO_DECL is defined. This means we are only interested in
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declarations.
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- PROCINFO_DECL is not defined:
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+ if SHARED is defined the file is included in an array
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initializer. The .element = { ... } syntax is needed.
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+ if SHARED is not defined a normal array initialization is
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needed.
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*/
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2003-07-22 22:28:07 +00:00
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#ifndef PROCINFO_CLASS
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2004-07-10 20:00:44 +00:00
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# define PROCINFO_CLASS
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2002-02-01 07:49:47 +00:00
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#endif
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2003-07-22 22:28:07 +00:00
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2017-04-10 19:01:30 +00:00
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#include <sysdeps/x86/dl-procinfo.c>
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2015-08-13 10:37:47 +00:00
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2002-02-01 07:49:47 +00:00
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#if !defined PROCINFO_DECL && defined SHARED
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._dl_x86_cap_flags
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#else
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2003-07-22 22:28:07 +00:00
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PROCINFO_CLASS const char _dl_x86_cap_flags[32][8]
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2002-02-01 07:49:47 +00:00
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#endif
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#ifndef PROCINFO_DECL
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= {
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2001-01-17 01:14:51 +00:00
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"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
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"cx8", "apic", "10", "sep", "mtrr", "pge", "mca", "cmov",
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2002-02-01 07:49:47 +00:00
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"pat", "pse36", "pn", "clflush", "20", "dts", "acpi", "mmx",
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2003-01-14 10:04:07 +00:00
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"fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe"
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2002-02-01 07:49:47 +00:00
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}
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#endif
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#if !defined SHARED || defined PROCINFO_DECL
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;
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#else
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,
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#endif
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2001-01-17 01:14:51 +00:00
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2002-02-01 07:49:47 +00:00
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#undef PROCINFO_DECL
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2003-07-22 22:28:07 +00:00
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#undef PROCINFO_CLASS
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