1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2002-2016 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 */ 19 20 #include <unistd.h> 21 #include <stdlib.h> 22 #include <pthread.h> 23 24 unsigned int args[2]; 25 int trigger = 0; 26 27 void * 28 thread_function0 (void *arg) 29 { 30 int my_number = (long) arg; 31 volatile int *myp = (volatile int *) &args[my_number]; 32 33 while (*myp > 0) 34 { 35 (*myp) ++; 36 usleep (1); /* Loop increment 1. */ 37 } 38 39 return NULL; 40 } 41 42 void * 43 thread_function0_1 (void *arg) 44 { 45 void *ret = thread_function0 (arg); 46 47 return ret; /* set breakpoint here */ 48 } 49 50 void * 51 thread_function1 (void *arg) 52 { 53 int my_number = (long) arg; 54 55 volatile int *myp = (volatile int *) &args[my_number]; 56 57 while (*myp > 0) 58 { 59 (*myp) ++; 60 usleep (1); /* Loop increment 2. */ 61 } 62 63 return NULL; 64 } 65 66 int 67 main () 68 { 69 int res; 70 pthread_t threads[2]; 71 void *thread_result; 72 long i = 0; 73 74 args[i] = 1; /* Init value. */ 75 res = pthread_create (&threads[i], NULL, 76 thread_function0_1, 77 (void *) i); 78 79 i++; 80 args[i] = 1; /* Init value. */ 81 res = pthread_create(&threads[i], NULL, 82 thread_function1, 83 (void *) i); 84 85 pthread_join (threads[0], &thread_result); 86 pthread_join (threads[1], &thread_result); 87 exit(EXIT_SUCCESS); 88 } 89