| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s | |
| #include "java.h" | |
| #include <memory.h> | |
| #include <sanitizer/tsan_interface.h> | |
| #if (__APPLE__) | |
| __attribute__((weak)) // Required for dyld macOS 12.0+ | |
| #endif | |
| __attribute__((disable_sanitizer_instrumentation)) | |
| 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); | |
| } | |
| if (pc == (2345 | kExternalPCBit)) { | |
| add_frame(ctx, "Caller1", "CallerFile.java", 111, 22); | |
| add_frame(ctx, "Caller2", "CallerFile.java", 333, 44); | |
| } | |
| if (pc == (3456 | kExternalPCBit)) { | |
| add_frame(ctx, "Allocer1", "Alloc.java", 11, 222); | |
| add_frame(ctx, "Allocer2", "Alloc.java", 33, 444); | |
| } | |
| } | |
| void *Thread(void *p) { | |
| barrier_wait(&barrier); | |
| __tsan_func_entry(2345 | kExternalPCBit); | |
| __tsan_write1_pc((jptr)p + 16, 1234 | kExternalPCBit); | |
| __tsan_func_exit(); | |
| return 0; | |
| } | |
| jptr const kHeapSize = 64 * 1024; | |
| jptr java_heap[kHeapSize]; | |
| int main() { | |
| barrier_init(&barrier, 2); | |
| jptr jheap = (jptr)java_heap; | |
| __tsan_java_init(jheap, kHeapSize); | |
| const int kBlockSize = 32; | |
| __tsan_func_entry(3456 | kExternalPCBit); | |
| __tsan_java_alloc(jheap, kBlockSize); | |
| print_address("addr:", 2, jheap, jheap + 16); | |
| __tsan_func_exit(); | |
| pthread_t th; | |
| pthread_create(&th, 0, Thread, (void*)jheap); | |
| __tsan_func_entry(2345 | kExternalPCBit); | |
| __tsan_write1_pc(jheap + 16, 1234 | kExternalPCBit); | |
| __tsan_func_exit(); | |
| barrier_wait(&barrier); | |
| pthread_join(th, 0); | |
| __tsan_java_free(jheap, kBlockSize); | |
| fprintf(stderr, "DONE\n"); | |
| return __tsan_java_fini(); | |
| } | |
| // CHECK: addr:[[BLOCK:0x[0-9,a-f]+]] [[ADDR:0x[0-9,a-f]+]] | |
| // CHECK: WARNING: ThreadSanitizer: data race | |
| // CHECK: Write of size 1 at [[ADDR]] by thread T1: | |
| // CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56 | |
| // CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65 | |
| // CHECK: #2 Caller1 CallerFile.java:111:22 | |
| // CHECK: #3 Caller2 CallerFile.java:333:44 | |
| // CHECK: Previous write of size 1 at [[ADDR]] by main thread: | |
| // CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56 | |
| // CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65 | |
| // CHECK: #2 Caller1 CallerFile.java:111:22 | |
| // CHECK: #3 Caller2 CallerFile.java:333:44 | |
| // CHECK: Location is heap block of size 32 at [[BLOCK]] allocated by main thread: | |
| // CHECK: #0 Allocer1 Alloc.java:11:222 | |
| // CHECK: #1 Allocer2 Alloc.java:33:444 | |
| // CHECK: DONE |