| 1 | // Test that lsan handles tls correctly for many threads |
|---|---|
| 2 | // RUN: %clangxx_lsan %s -o %t |
| 3 | // RUN: %env_lsan_opts="report_objects=1:use_stacks=0:use_registers=0:use_tls=0" not %run %t 2>&1 | FileCheck %s |
| 4 | // RUN: %env_lsan_opts="report_objects=1:use_stacks=0:use_registers=0:use_tls=1" %run %t 2>&1 |
| 5 | // RUN: %env_lsan_opts="" %run %t 2>&1 |
| 6 | |
| 7 | // Patch r303906 did not fix all the problems. |
| 8 | // UNSUPPORTED: arm-linux,armhf-linux |
| 9 | |
| 10 | #include <assert.h> |
| 11 | #include <limits.h> |
| 12 | #include <pthread.h> |
| 13 | #include <stdlib.h> |
| 14 | #include <unistd.h> |
| 15 | |
| 16 | static const int NUM_THREADS = 10; |
| 17 | |
| 18 | pthread_cond_t cond = PTHREAD_COND_INITIALIZER; |
| 19 | pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; |
| 20 | int finished = 0; |
| 21 | |
| 22 | __thread void *ptr1; |
| 23 | __thread void *ptr2; |
| 24 | __thread void *ptr3; |
| 25 | __thread void *ptr4; |
| 26 | __thread void *ptr5; |
| 27 | |
| 28 | void alloc() { |
| 29 | ptr1 = malloc(size: 1111); |
| 30 | ptr2 = malloc(size: 2222); |
| 31 | ptr3 = malloc(size: 3333); |
| 32 | ptr4 = malloc(size: 4444); |
| 33 | ptr5 = malloc(size: 5555); |
| 34 | } |
| 35 | |
| 36 | void *thread_start(void *arg) { |
| 37 | alloc(); |
| 38 | |
| 39 | pthread_mutex_lock(mutex: &mutex); |
| 40 | finished++; |
| 41 | pthread_mutex_unlock(mutex: &mutex); |
| 42 | |
| 43 | // don't exit, to intentionally leak tls data |
| 44 | while (1) |
| 45 | sleep(seconds: 100); |
| 46 | } |
| 47 | |
| 48 | int main() { |
| 49 | pthread_t thread[NUM_THREADS]; |
| 50 | for (int i = 0; i < NUM_THREADS; ++i) { |
| 51 | assert(0 == pthread_create(&thread[i], 0, thread_start, 0)); |
| 52 | } |
| 53 | // spin until all threads have finished |
| 54 | while (finished < NUM_THREADS) |
| 55 | sleep(seconds: 1); |
| 56 | exit(status: 0); |
| 57 | } |
| 58 | |
| 59 | // CHECK: LeakSanitizer: detected memory leaks |
| 60 | // CHECK: SUMMARY: {{.*}}Sanitizer: |
| 61 |