1 // RUN: %clangxx_tsan -O1 %s -o %t 2 // RUN: %deflake %run %t 2>&1 | FileCheck %s 3 4 #include <pthread.h> 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <string.h> 8 9 #include "test.h" 10 11 extern "C" { 12 void __tsan_on_report(void *report); 13 void *__tsan_get_current_report(); 14 int __tsan_get_report_data(void *report, const char **description, int *count, 15 int *stack_count, int *mop_count, int *loc_count, 16 int *mutex_count, int *thread_count, 17 int *unique_tid_count, void **sleep_trace, 18 unsigned long trace_size); 19 int __tsan_get_report_mop(void *report, unsigned long idx, int *tid, 20 void **addr, int *size, int *write, int *atomic, 21 void **trace, unsigned long trace_size); 22 int __tsan_get_report_thread(void *report, unsigned long idx, int *tid, 23 unsigned long *os_id, int *running, 24 const char **name, int *parent_tid, void **trace, 25 unsigned long trace_size); 26 } 27 28 long my_global; 29 30 void *Thread(void *a) { 31 barrier_wait(&barrier); 32 my_global = 42; 33 return NULL; 34 } 35 36 int main() { 37 barrier_init(&barrier, 2); 38 fprintf(stderr, "&my_global = %p\n", &my_global); 39 // CHECK: &my_global = [[GLOBAL:0x[0-9a-f]+]] 40 pthread_t t; 41 pthread_create(&t, 0, Thread, 0); 42 my_global = 41; 43 barrier_wait(&barrier); 44 pthread_join(t, 0); 45 fprintf(stderr, "Done.\n"); 46 } 47 48 void __tsan_on_report(void *report) { 49 fprintf(stderr, "__tsan_on_report(%p)\n", report); 50 fprintf(stderr, "__tsan_get_current_report() = %p\n", 51 __tsan_get_current_report()); 52 // CHECK: __tsan_on_report([[REPORT:0x[0-9a-f]+]]) 53 // CHECK: __tsan_get_current_report() = [[REPORT]] 54 55 const char *description; 56 int count; 57 int stack_count, mop_count, loc_count, mutex_count, thread_count, 58 unique_tid_count; 59 void *sleep_trace[16] = {0}; 60 __tsan_get_report_data(report, &description, &count, &stack_count, &mop_count, 61 &loc_count, &mutex_count, &thread_count, 62 &unique_tid_count, sleep_trace, 16); 63 fprintf(stderr, "report type = '%s', count = %d\n", description, count); 64 // CHECK: report type = 'data-race', count = 0 65 66 fprintf(stderr, "mop_count = %d\n", mop_count); 67 // CHECK: mop_count = 2 68 69 int tid; 70 void *addr; 71 int size, write, atomic; 72 void *trace[16] = {0}; 73 74 __tsan_get_report_mop(report, 0, &tid, &addr, &size, &write, &atomic, trace, 75 16); 76 fprintf(stderr, "tid = %d, addr = %p, size = %d, write = %d, atomic = %d\n", 77 tid, addr, size, write, atomic); 78 // CHECK: tid = 1, addr = [[GLOBAL]], size = 8, write = 1, atomic = 0 79 fprintf(stderr, "trace[0] = %p, trace[1] = %p\n", trace[0], trace[1]); 80 // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = {{0x0|\(nil\)|\(null\)}} 81 82 __tsan_get_report_mop(report, 1, &tid, &addr, &size, &write, &atomic, trace, 83 16); 84 fprintf(stderr, "tid = %d, addr = %p, size = %d, write = %d, atomic = %d\n", 85 tid, addr, size, write, atomic); 86 // CHECK: tid = 0, addr = [[GLOBAL]], size = 8, write = 1, atomic = 0 87 fprintf(stderr, "trace[0] = %p, trace[1] = %p\n", trace[0], trace[1]); 88 // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = {{0x0|\(nil\)|\(null\)}} 89 90 fprintf(stderr, "thread_count = %d\n", thread_count); 91 // CHECK: thread_count = 2 92 93 unsigned long os_id; 94 int running; 95 const char *name; 96 int parent_tid; 97 98 __tsan_get_report_thread(report, 0, &tid, &os_id, &running, &name, &parent_tid, trace, 16); 99 fprintf(stderr, "tid = %d\n", tid); 100 // CHECK: tid = 1 101 102 __tsan_get_report_thread(report, 1, &tid, &os_id, &running, &name, &parent_tid, trace, 16); 103 fprintf(stderr, "tid = %d\n", tid); 104 // CHECK: tid = 0 105 } 106 107 // CHECK: Done. 108 // CHECK: ThreadSanitizer: reported 1 warnings 109
