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- /* Test case for forgotten hw-watchpoints after fork()-off of a process.
- Copyright 2012-2022 Free Software Foundation, Inc.
- This file is part of GDB.
- 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 <string.h>
- #include <errno.h>
- #include <sys/types.h>
- #include <unistd.h>
- #include <assert.h>
- #include <stdio.h>
- #include <sys/wait.h>
- #include "watchpoint-fork.h"
- void
- forkoff (int nr)
- {
- pid_t child, pid_got;
- int exit_code = 42 + nr;
- int status, i;
- child = fork ();
- switch (child)
- {
- case -1:
- assert (0);
- case 0:
- #if DEBUG
- printf ("child%d: %d\n", nr, (int) getpid ());
- /* Delay to get both the "child%d" and "parent%d" message printed without
- a race breaking expect by its endless wait on `$gdb_prompt$':
- Breakpoint 3, marker () at ../../../gdb/testsuite/gdb.threads/watchpoint-fork.c:33
- 33 }
- (gdb) parent2: 14223 */
- i = sleep (1);
- assert (i == 0);
- #endif
- /* We must not get caught here (against a forgotten breakpoint). */
- var++;
- marker ();
- _exit (exit_code);
- default:
- #if DEBUG
- printf ("parent%d: %d\n", nr, (int) child);
- /* Delay to get both the "child%d" and "parent%d" message printed, see
- above. */
- i = sleep (1);
- assert (i == 0);
- #endif
- pid_got = wait (&status);
- assert (pid_got == child);
- assert (WIFEXITED (status));
- assert (WEXITSTATUS (status) == exit_code);
- /* We must get caught here (against a false watchpoint removal). */
- marker ();
- }
- }
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