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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
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* Test for exit/dlclose race (Bug 22180).
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Copyright (C) 2017-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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/* This file must be run from within a directory called "stdlib". */
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/* This test verifies that when dlopen in one thread races against exit
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in another thread, we don't call registered destructor twice.
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Expected result:
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second
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first
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... clean termination
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <semaphore.h>
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#include <support/check.h>
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#include <support/xdlfcn.h>
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#include <support/xthread.h>
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/* Semaphore to ensure we have a happens-before between the first function
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starting and exit being called. */
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sem_t order1;
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/* Semaphore to ensure we have a happens-before between the second function
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starting and the first function returning. */
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sem_t order2;
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void *
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exit_thread (void *arg)
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{
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/* Wait for the dlclose to start... */
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sem_wait (&order1);
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/* Then try to run the exit sequence which should call all
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__cxa_atexit registered functions and in parallel with
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the executing dlclose(). */
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exit (0);
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}
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void
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last (void)
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{
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/* Let dlclose thread proceed. */
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sem_post (&order2);
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}
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int
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main (void)
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{
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void *dso;
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pthread_t thread;
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atexit (last);
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dso = xdlopen ("$ORIGIN/test-dlclose-exit-race-helper.so",
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RTLD_NOW|RTLD_GLOBAL);
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thread = xpthread_create (NULL, exit_thread, NULL);
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xdlclose (dso);
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xpthread_join (thread);
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FAIL_EXIT1 ("Did not terminate via exit(0) in exit_thread() as expected.");
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}
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