mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-15 04:20:28 +08:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
159 lines
2.8 KiB
C
159 lines
2.8 KiB
C
/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <dlfcn.h>
|
|
#include <errno.h>
|
|
#include <mcheck.h>
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/wait.h>
|
|
|
|
|
|
/* Must be exported. */
|
|
int val;
|
|
|
|
static void
|
|
prepare (void)
|
|
{
|
|
val *= 2;
|
|
}
|
|
|
|
static void
|
|
parent (void)
|
|
{
|
|
val += 4;
|
|
}
|
|
|
|
static void
|
|
child (void)
|
|
{
|
|
val += 8;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
mtrace ();
|
|
|
|
if (pthread_atfork (prepare, parent, child) != 0)
|
|
{
|
|
puts ("do_test: atfork failed");
|
|
exit (1);
|
|
}
|
|
|
|
void *h = dlopen ("tst-atfork2mod.so", RTLD_LAZY);
|
|
if (h == NULL)
|
|
{
|
|
printf ("dlopen failed: %s\n", dlerror ());
|
|
exit (1);
|
|
}
|
|
|
|
/* First trial of fork. */
|
|
pid_t pid = fork ();
|
|
if (pid == -1)
|
|
{
|
|
puts ("1st fork failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (pid == 0)
|
|
{
|
|
/* Child. */
|
|
if (val != 80)
|
|
{
|
|
printf ("1st: expected val=%d, got %d\n", 80, val);
|
|
exit (2);
|
|
}
|
|
|
|
exit (0);
|
|
}
|
|
|
|
/* Parent. */
|
|
if (val != 24)
|
|
{
|
|
printf ("1st: expected val=%d, got %d\n", 24, val);
|
|
exit (1);
|
|
}
|
|
|
|
int status;
|
|
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
|
|
{
|
|
puts ("1st waitpid failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (status != 0)
|
|
exit (status);
|
|
|
|
puts ("unloading now");
|
|
|
|
/* Unload the module. */
|
|
if (dlclose (h) != 0)
|
|
{
|
|
puts ("dlclose failed");
|
|
exit (1);
|
|
}
|
|
|
|
puts ("2nd fork");
|
|
|
|
/* Second fork trial. */
|
|
val = 1;
|
|
pid = fork ();
|
|
if (pid == -1)
|
|
{
|
|
puts ("2nd fork failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (pid == 0)
|
|
{
|
|
/* Child. */
|
|
if (val != 10)
|
|
{
|
|
printf ("2nd: expected val=%d, got %d\n", 10, val);
|
|
exit (3);
|
|
}
|
|
|
|
exit (0);
|
|
}
|
|
|
|
/* Parent. */
|
|
if (val != 6)
|
|
{
|
|
printf ("2nd: expected val=%d, got %d\n", 6, val);
|
|
exit (1);
|
|
}
|
|
|
|
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
|
|
{
|
|
puts ("2nd waitpid failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (status != 0)
|
|
exit (status);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|