| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2021-2022 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 <unistd.h> |
| #include <assert.h> |
| |
| static volatile int release_forking_thread = 0; |
| static int x; |
| static pthread_barrier_t barrier; |
| |
| static void |
| break_here (void) |
| { |
| x++; |
| } |
| |
| static void |
| do_fork (void) |
| { |
| while (!release_forking_thread); |
| |
| if (FORK_FUNCTION () == 0) |
| { |
| /* We create the file in a separate program that we exec: if FORK_FUNCTION |
| is vfork, we shouldn't do anything more than an exec. */ |
| execl (TOUCH_FILE_BIN, TOUCH_FILE_BIN, NULL); |
| } |
| |
| } |
| |
| static void * |
| thread_func (void *p) |
| { |
| pthread_barrier_wait (&barrier); |
| |
| #if defined(MAIN_THREAD_FORKS) |
| break_here (); |
| #elif defined(OTHER_THREAD_FORKS) |
| do_fork (); |
| #else |
| # error "MAIN_THREAD_FORKS or OTHER_THREAD_FORKS must be defined" |
| #endif |
| } |
| |
| |
| int |
| main (void) |
| { |
| pthread_t thread; |
| int ret; |
| |
| pthread_barrier_init (&barrier, NULL, 2); |
| |
| alarm (30); |
| ret = pthread_create (&thread, NULL, thread_func, NULL); |
| assert (ret == 0); |
| |
| pthread_barrier_wait (&barrier); |
| |
| #if defined(MAIN_THREAD_FORKS) |
| do_fork (); |
| #elif defined(OTHER_THREAD_FORKS) |
| break_here (); |
| #else |
| # error "MAIN_THREAD_FORKS or OTHER_THREAD_FORKS must be defined" |
| #endif |
| |
| pthread_join (thread, NULL); |
| |
| return 0; |
| } |