| 1 | /* Test case for forgotten hw-watchpoints after fork()-off of a process. |
| 2 | |
| 3 | Copyright 2012-2016 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "watchpoint-fork.h" |
| 21 | |
| 22 | #include <assert.h> |
| 23 | #include <unistd.h> |
| 24 | #include <sys/wait.h> |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | |
| 28 | volatile int var; |
| 29 | |
| 30 | void |
| 31 | marker (void) |
| 32 | { |
| 33 | } |
| 34 | |
| 35 | static void |
| 36 | mark_exit (void) |
| 37 | { |
| 38 | } |
| 39 | |
| 40 | int |
| 41 | main (void) |
| 42 | { |
| 43 | setbuf (stdout, NULL); |
| 44 | printf ("main: %d\n", (int) getpid ()); |
| 45 | |
| 46 | /* General hardware breakpoints and watchpoints validity. */ |
| 47 | marker (); |
| 48 | var++; |
| 49 | /* Hardware watchpoints got disarmed here. */ |
| 50 | forkoff (1); |
| 51 | /* This watchpoint got lost before. */ |
| 52 | var++; |
| 53 | /* A sanity check for double hardware watchpoints removal. */ |
| 54 | forkoff (2); |
| 55 | var++; |
| 56 | |
| 57 | mark_exit (); |
| 58 | return 0; |
| 59 | } |