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| // RUN: %clangxx_tsan -O1 %s -o %t
| // RUN: %deflake %run %t 2>&1 | FileCheck %s
|
| #include <pthread.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,
| unsigned long *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");
| }
|
| 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
|
| unsigned long 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
|
|
