| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2012-2021 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 <stdlib.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <limits.h> |
| #include <string.h> |
| #include <pthread.h> |
| |
| #define NUM_THREADS 1 |
| |
| static pthread_barrier_t barrier; |
| |
| static void * |
| thread_start (void *arg) |
| { |
| pthread_barrier_wait (&barrier); |
| pthread_barrier_wait (&barrier); |
| pthread_barrier_wait (&barrier); |
| |
| while (1) |
| sleep (1); |
| return NULL; |
| } |
| |
| static void |
| all_started (void) |
| { |
| } |
| |
| int |
| main (int argc, char ** argv) |
| { |
| char prog[PATH_MAX]; |
| pthread_t thread; |
| int len; |
| |
| strcpy (prog, argv[0]); |
| len = strlen (prog); |
| /* Replace "multi-arch-exec" with "multi-arch-exec-hello". */ |
| memcpy (prog + len - 15, "multi-arch-exec-hello", 21); |
| prog[len + 6] = 0; |
| |
| pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1); |
| pthread_create (&thread, NULL, thread_start, NULL); |
| |
| pthread_barrier_wait (&barrier); |
| all_started (); |
| |
| /* Avoid races with GDB ptrace-resuming the threads and the exec: ensure |
| both threads were resumed by GDB before going into the exec. */ |
| pthread_barrier_wait (&barrier); |
| pthread_barrier_wait (&barrier); |
| |
| execl (prog, |
| prog, |
| (char *) NULL); |
| perror ("execl failed"); |
| exit (1); |
| } |