mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 06:10:10 +00:00
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
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/* Setup of nscd worker threads. Linux verison.
|
|
Copyright (C) 2004-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published
|
|
by the Free Software Foundation; version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <nscd.h>
|
|
#include <sysdep.h>
|
|
|
|
|
|
int
|
|
setup_thread (struct database_dyn *db)
|
|
{
|
|
#ifdef __NR_set_tid_address
|
|
/* Only supported when NPTL is used. */
|
|
char buf[100];
|
|
if (confstr (_CS_GNU_LIBPTHREAD_VERSION, buf, sizeof (buf)) >= sizeof (buf)
|
|
|| strncmp (buf, "NPTL", 4) != 0)
|
|
return 0;
|
|
|
|
/* Do not try this at home, kids. We play with the SETTID address
|
|
even thought the process is multi-threaded. This can only work
|
|
since none of the threads ever terminates. */
|
|
INTERNAL_SYSCALL_DECL (err);
|
|
int r = INTERNAL_SYSCALL (set_tid_address, err, 1,
|
|
&db->head->nscd_certainly_running);
|
|
if (!INTERNAL_SYSCALL_ERROR_P (r, err))
|
|
/* We know the kernel can reset this field when nscd terminates.
|
|
So, set the field to a nonzero value which indicates that nscd
|
|
is certainly running and clients can skip the test. */
|
|
return db->head->nscd_certainly_running = 1;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|