mirror of
https://sourceware.org/git/glibc.git
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5a82c74822
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
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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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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<https://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <list.h>
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#include <fork.h>
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#include <dl-sysdep.h>
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#include <tls.h>
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#include <string.h>
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#include <pthreadP.h>
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#include <libc-lock.h>
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#include <sysdep.h>
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#include <ldsodefs.h>
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unsigned long int *__fork_generation_pointer;
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#ifdef TLS_MULTIPLE_THREADS_IN_TCB
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void
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#else
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extern int __libc_multiple_threads attribute_hidden;
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int *
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#endif
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__libc_pthread_init (unsigned long int *ptr, void (*reclaim) (void),
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const struct pthread_functions *functions)
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{
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/* Remember the pointer to the generation counter in libpthread. */
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__fork_generation_pointer = ptr;
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/* Called by a child after fork. */
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__register_atfork (NULL, NULL, reclaim, NULL);
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#ifdef SHARED
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/* Copy the function pointers into an array in libc. This enables
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access with just one memory reference but moreso, it prevents
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hijacking the function pointers with just one pointer change. We
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"encrypt" the function pointers since we cannot write-protect the
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array easily enough. */
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union ptrhack
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{
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struct pthread_functions pf;
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# define NPTRS (sizeof (struct pthread_functions) / sizeof (void *))
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void *parr[NPTRS];
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} __attribute__ ((may_alias)) const *src;
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union ptrhack *dest;
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src = (const void *) functions;
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dest = (void *) &__libc_pthread_functions;
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for (size_t cnt = 0; cnt < NPTRS; ++cnt)
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{
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void *p = src->parr[cnt];
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PTR_MANGLE (p);
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dest->parr[cnt] = p;
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}
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__libc_pthread_functions_init = 1;
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#endif
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#ifndef TLS_MULTIPLE_THREADS_IN_TCB
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return &__libc_multiple_threads;
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#endif
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}
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