| // RUN: %clangxx_tsan -O1 %s -o %t |
| // RUN: %run %t 2>&1 | FileCheck %s |
| // RUN: %run %t arg 2>&1 | FileCheck %s |
| #include "java.h" |
| |
| jptr varaddr1_old; |
| jptr varaddr2_old; |
| jptr varaddr1_new; |
| jptr varaddr2_new; |
| |
| void *Thread(void *p) { |
| barrier_wait(&barrier); |
| *(int*)varaddr1_new = 43; |
| *(int*)varaddr2_new = 43; |
| return 0; |
| } |
| |
| int main(int argc, char **argv) { |
| barrier_init(&barrier, 2); |
| int const kHeapSize = 1024 * 1024; |
| void *jheap = malloc(kHeapSize); |
| jheap = (char*)jheap + 8; |
| __tsan_java_init((jptr)jheap, kHeapSize); |
| const int kBlockSize = 64; |
| int const kMove = 32; |
| varaddr1_old = (jptr)jheap; |
| varaddr2_old = (jptr)jheap + kBlockSize - 1; |
| varaddr1_new = varaddr1_old + kMove; |
| varaddr2_new = varaddr2_old + kMove; |
| if (argc > 1) { |
| // Move memory backwards. |
| varaddr1_old += kMove; |
| varaddr2_old += kMove; |
| varaddr1_new -= kMove; |
| varaddr2_new -= kMove; |
| } |
| __tsan_java_alloc(varaddr1_old, kBlockSize); |
| |
| pthread_t th; |
| pthread_create(&th, 0, Thread, 0); |
| |
| *(int*)varaddr1_old = 43; |
| *(int*)varaddr2_old = 43; |
| |
| __tsan_java_move(varaddr1_old, varaddr1_new, kBlockSize); |
| barrier_wait(&barrier); |
| pthread_join(th, 0); |
| __tsan_java_free(varaddr1_new, kBlockSize); |
| fprintf(stderr, "DONE\n"); |
| return __tsan_java_fini(); |
| } |
| |
| // Note: there is a race on the moved object (which we used to detect), |
| // but now __tsan_java_move resets the object shadow, so we don't detect it anymore. |
| // CHECK-NOT: WARNING: ThreadSanitizer: data race |
| // CHECK: DONE |