You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
3.8 KiB
109 lines
3.8 KiB
4 months ago
|
// 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
|