2013-10-14 11:55:28 +00:00
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/* This file is part of the GNU C Library.
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2020-01-01 00:14:33 +00:00
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Copyright (C) 2013-2020 Free Software Foundation, Inc.
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2013-10-14 11:55:28 +00:00
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The GNU C Library is free software; you can redistribute it and/or
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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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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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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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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2013-10-14 11:55:28 +00:00
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#include <ldsodefs.h>
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/* The code checks if _rtld_global_ro was realocated before trying to access
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the dl_hwcap field. The assembly is to make the compiler not optimize the
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test (&_rtld_global_ro != NULL), which is always true in ISO C (but not
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in that case since _rtld_global_ro might not been realocated yet). */
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2014-11-20 15:39:43 +00:00
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#if defined(SHARED) && !IS_IN (rtld)
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2013-10-14 11:55:28 +00:00
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# define __GLRO(value) \
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({ volatile void **__p = (volatile void**)(&_rtld_global_ro); \
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unsigned long int __ret; \
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asm ("# x in %0" : "+r" (__p)); \
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__ret = (__p) ? GLRO(value) : 0; \
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__ret; })
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#else
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# define __GLRO(value) GLRO(value)
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#endif
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/* dl_hwcap contains only the latest supported ISA, the macro checks which is
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and fills the previous ones. */
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#define INIT_ARCH() \
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unsigned long int hwcap = __GLRO(dl_hwcap); \
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2014-02-27 15:43:51 +00:00
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unsigned long int __attribute__((unused)) hwcap2 = __GLRO(dl_hwcap2); \
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2017-12-11 19:39:42 +00:00
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bool __attribute__((unused)) use_cached_memopt = \
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GLRO(dl_powerpc_cpu_features).use_cached_memopt; \
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2013-10-14 11:55:28 +00:00
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if (hwcap & PPC_FEATURE_ARCH_2_06) \
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hwcap |= PPC_FEATURE_ARCH_2_05 | \
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PPC_FEATURE_POWER5_PLUS | \
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PPC_FEATURE_POWER5 | \
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PPC_FEATURE_POWER4; \
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else if (hwcap & PPC_FEATURE_ARCH_2_05) \
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hwcap |= PPC_FEATURE_POWER5_PLUS | \
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PPC_FEATURE_POWER5 | \
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PPC_FEATURE_POWER4; \
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else if (hwcap & PPC_FEATURE_POWER5_PLUS) \
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hwcap |= PPC_FEATURE_POWER5 | \
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PPC_FEATURE_POWER4; \
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else if (hwcap & PPC_FEATURE_POWER5) \
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hwcap |= PPC_FEATURE_POWER4;
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