| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
| #include "java.h" |
| #include <memory.h> |
| |
| extern "C" void __tsan_symbolize_external_ex( |
| jptr pc, void (*add_frame)(void *, const char *, const char *, int, int), |
| void *ctx) { |
| if (pc == (1234 | kExternalPCBit)) { |
| add_frame(ctx, "MyInnerFunc", "MyInnerFile.java", 1234, 56); |
| add_frame(ctx, "MyOuterFunc", "MyOuterFile.java", 4321, 65); |
| } |
| } |
| |
| void *Thread(void *p) { |
| barrier_wait(&barrier); |
| __tsan_write1_pc((jptr)p, 1234 | kExternalPCBit); |
| return 0; |
| } |
| |
| int main() { |
| barrier_init(&barrier, 2); |
| int const kHeapSize = 1024 * 1024; |
| jptr jheap = (jptr)malloc(kHeapSize + 8) + 8; |
| __tsan_java_init(jheap, kHeapSize); |
| const int kBlockSize = 16; |
| __tsan_java_alloc(jheap, kBlockSize); |
| pthread_t th; |
| pthread_create(&th, 0, Thread, (void*)jheap); |
| __tsan_write1_pc((jptr)jheap, 1234 | kExternalPCBit); |
| barrier_wait(&barrier); |
| pthread_join(th, 0); |
| __tsan_java_free(jheap, kBlockSize); |
| fprintf(stderr, "DONE\n"); |
| return __tsan_java_fini(); |
| } |
| |
| // CHECK: WARNING: ThreadSanitizer: data race |
| // CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56 |
| // CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65 |
| // CHECK: DONE |
