step-over-lands-on-breakpoint.c revision 1.3
1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2014-2015 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18#include <pthread.h> 19#include <unistd.h> 20#include <stdlib.h> 21 22pthread_barrier_t barrier; 23pthread_t child_thread; 24 25volatile unsigned int counter = 1; 26 27void * 28child_function (void *arg) 29{ 30 pthread_barrier_wait (&barrier); 31 32 while (counter > 0) 33 { 34 counter++; 35 36 asm (" nop"); /* set breakpoint child here */ 37 asm (" nop"); /* set breakpoint after step-over here */ 38 usleep (1); 39 } 40 41 pthread_exit (NULL); 42} 43 44static int 45wait_threads (void) 46{ 47 return 1; /* in wait_threads */ 48} 49 50int 51main () 52{ 53 int res; 54 long i; 55 56 pthread_barrier_init (&barrier, NULL, 2); 57 58 res = pthread_create (&child_thread, NULL, child_function, NULL); 59 pthread_barrier_wait (&barrier); 60 wait_threads (); /* set wait-thread breakpoint here */ 61 62 pthread_join (child_thread, NULL); 63 64 exit (EXIT_SUCCESS); 65} 66