mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-05 09:19:27 +01:00
118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
/* libunwind - a platform-independent unwind library
|
|
Copyright (C) 2003 Hewlett-Packard Co
|
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be
|
|
included in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
/* Verify that multi-threaded concurrent unwinding works as expected. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <libunwind.h>
|
|
#include <pthread.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#define NTHREADS 128
|
|
|
|
#define panic(args...) \
|
|
do { fprintf (stderr, args); ++nerrors; } while (0)
|
|
|
|
int verbose;
|
|
int nerrors;
|
|
int got_usr1, got_usr2;
|
|
char *sigusr1_sp;
|
|
|
|
void
|
|
handler (int sig)
|
|
{
|
|
unw_word_t ip;
|
|
unw_context_t uc;
|
|
unw_cursor_t c;
|
|
int ret;
|
|
|
|
unw_getcontext(&uc);
|
|
unw_init_local(&c, &uc);
|
|
do
|
|
{
|
|
unw_get_reg(&c, UNW_REG_IP, &ip);
|
|
if (verbose)
|
|
printf ("%lx: IP=%lx\n", (long) pthread_self (), (unsigned long) ip);
|
|
}
|
|
while ((ret = unw_step(&c)) > 0);
|
|
|
|
if (ret < 0)
|
|
panic ("unw_step() returned %d\n", ret);
|
|
}
|
|
|
|
void *
|
|
worker (void *arg)
|
|
{
|
|
signal (SIGUSR1, handler);
|
|
|
|
if (verbose)
|
|
printf ("sending SIGUSR1\n");
|
|
pthread_kill (pthread_self (), SIGUSR1);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
doit (void)
|
|
{
|
|
pthread_t th[NTHREADS];
|
|
int i;
|
|
|
|
for (i = 0; i < NTHREADS; ++i)
|
|
pthread_create (th + i, NULL, worker, NULL);
|
|
|
|
for (i = 0; i < NTHREADS; ++i)
|
|
pthread_join (th[i], NULL);
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
if (argc > 1)
|
|
verbose = 1;
|
|
|
|
if (verbose)
|
|
printf ("Caching: none\n");
|
|
unw_set_caching_policy (unw_local_addr_space, UNW_CACHE_NONE);
|
|
doit ();
|
|
|
|
if (verbose)
|
|
printf ("Caching: global\n");
|
|
unw_set_caching_policy (unw_local_addr_space, UNW_CACHE_GLOBAL);
|
|
|
|
if (verbose)
|
|
printf ("Caching: per-thread\n");
|
|
unw_set_caching_policy (unw_local_addr_space, UNW_CACHE_PER_THREAD);
|
|
|
|
if (nerrors)
|
|
fprintf (stderr, "FAILURE: detected %d errors\n", nerrors);
|
|
|
|
if (verbose)
|
|
printf ("SUCCESS\n");
|
|
return 0;
|
|
}
|