| // RUN: %clangxx_tsan -O1 %s -o %t |
| // RUN: %deflake %run %t 2>&1 | FileCheck %s |
| |
| #include <pthread.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "test.h" |
| |
| extern "C" { |
| void __tsan_on_report(void *report); |
| void *__tsan_get_current_report(); |
| int __tsan_get_report_data(void *report, const char **description, int *count, |
| int *stack_count, int *mop_count, int *loc_count, |
| int *mutex_count, int *thread_count, |
| int *unique_tid_count, void **sleep_trace, |
| unsigned long trace_size); |
| int __tsan_get_report_mop(void *report, unsigned long idx, int *tid, |
| void **addr, int *size, int *write, int *atomic, |
| void **trace, unsigned long trace_size); |
| int __tsan_get_report_thread(void *report, unsigned long idx, int *tid, |
| uint64_t *os_id, int *running, |
| const char **name, int *parent_tid, void **trace, |
| unsigned long trace_size); |
| } |
| |
| long my_global; |
| |
| void *Thread(void *a) { |
| barrier_wait(&barrier); |
| my_global = 42; |
| return NULL; |
| } |
| |
| int main() { |
| barrier_init(&barrier, 2); |
| fprintf(stderr, "&my_global = %p\n", &my_global); |
| // CHECK: &my_global = [[GLOBAL:0x[0-9a-f]+]] |
| pthread_t t; |
| pthread_create(&t, 0, Thread, 0); |
| my_global = 41; |
| barrier_wait(&barrier); |
| pthread_join(t, 0); |
| fprintf(stderr, "Done.\n"); |
| } |
| |
| __attribute__((disable_sanitizer_instrumentation)) void |
| __tsan_on_report(void *report) { |
| fprintf(stderr, "__tsan_on_report(%p)\n", report); |
| fprintf(stderr, "__tsan_get_current_report() = %p\n", |
| __tsan_get_current_report()); |
| // CHECK: __tsan_on_report([[REPORT:0x[0-9a-f]+]]) |
| // CHECK: __tsan_get_current_report() = [[REPORT]] |
| |
| const char *description; |
| int count; |
| int stack_count, mop_count, loc_count, mutex_count, thread_count, |
| unique_tid_count; |
| void *sleep_trace[16] = {0}; |
| __tsan_get_report_data(report, &description, &count, &stack_count, &mop_count, |
| &loc_count, &mutex_count, &thread_count, |
| &unique_tid_count, sleep_trace, 16); |
| fprintf(stderr, "report type = '%s', count = %d\n", description, count); |
| // CHECK: report type = 'data-race', count = 0 |
| |
| fprintf(stderr, "mop_count = %d\n", mop_count); |
| // CHECK: mop_count = 2 |
| |
| int tid; |
| void *addr; |
| int size, write, atomic; |
| void *trace[16] = {0}; |
| |
| __tsan_get_report_mop(report, 0, &tid, &addr, &size, &write, &atomic, trace, |
| 16); |
| fprintf(stderr, "tid = %d, addr = %p, size = %d, write = %d, atomic = %d\n", |
| tid, addr, size, write, atomic); |
| // CHECK: tid = 1, addr = [[GLOBAL]], size = 8, write = 1, atomic = 0 |
| fprintf(stderr, "trace[0] = %p, trace[1] = %p\n", trace[0], trace[1]); |
| // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = {{0x0|\(nil\)|\(null\)}} |
| |
| __tsan_get_report_mop(report, 1, &tid, &addr, &size, &write, &atomic, trace, |
| 16); |
| fprintf(stderr, "tid = %d, addr = %p, size = %d, write = %d, atomic = %d\n", |
| tid, addr, size, write, atomic); |
| // CHECK: tid = 0, addr = [[GLOBAL]], size = 8, write = 1, atomic = 0 |
| fprintf(stderr, "trace[0] = %p, trace[1] = %p\n", trace[0], trace[1]); |
| // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = {{0x0|\(nil\)|\(null\)}} |
| |
| fprintf(stderr, "thread_count = %d\n", thread_count); |
| // CHECK: thread_count = 2 |
| |
| uint64_t os_id; |
| int running; |
| const char *name; |
| int parent_tid; |
| |
| __tsan_get_report_thread(report, 0, &tid, &os_id, &running, &name, &parent_tid, trace, 16); |
| fprintf(stderr, "tid = %d\n", tid); |
| // CHECK: tid = 1 |
| |
| __tsan_get_report_thread(report, 1, &tid, &os_id, &running, &name, &parent_tid, trace, 16); |
| fprintf(stderr, "tid = %d\n", tid); |
| // CHECK: tid = 0 |
| } |
| |
| // CHECK: Done. |
| // CHECK: ThreadSanitizer: reported 1 warnings |