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/* This testcase is part of GDB, the GNU debugger.
Copyright 2010-2017 Free Software Foundation, Inc.
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; either version 3 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 <http://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <assert.h>
#include <signal.h>
#include <asm/unistd.h>
#include <unistd.h>
#define tgkill(tgid, tid, sig) syscall (__NR_tgkill, (tgid), (tid), (sig))
#define gettid() syscall (__NR_gettid)
static volatile int var;
static void
handler (int signo) /* step-0 */
{ /* step-0 */
var++; /* step-1 */
tgkill (getpid (), gettid (), SIGUSR1); /* step-2 */
}
static void *
start (void *arg)
{
tgkill (getpid (), gettid (), SIGUSR1);
assert (0);
return NULL;
}
int
main (void)
{
pthread_t thread;
signal (SIGUSR1, handler);
pthread_create (&thread, NULL, start, NULL);
start (NULL); /* main-start */
return 0;
}
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