77 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s2#include "java.h"3#include <memory.h>4#include <sanitizer/tsan_interface.h>5 6#if (__APPLE__)7__attribute__((weak)) // Required for dyld macOS 12.0+8#endif9__attribute__((disable_sanitizer_instrumentation))10extern "C" void11__tsan_symbolize_external_ex(jptr pc,12 void (*add_frame)(void *, const char *,13 const char *, int, int),14 void *ctx) {15 if (pc == (1234 | kExternalPCBit)) {16 add_frame(ctx, "MyInnerFunc", "MyInnerFile.java", 1234, 56);17 add_frame(ctx, "MyOuterFunc", "MyOuterFile.java", 4321, 65);18 }19 if (pc == (2345 | kExternalPCBit)) {20 add_frame(ctx, "Caller1", "CallerFile.java", 111, 22);21 add_frame(ctx, "Caller2", "CallerFile.java", 333, 44);22 }23 if (pc == (3456 | kExternalPCBit)) {24 add_frame(ctx, "Allocer1", "Alloc.java", 11, 222);25 add_frame(ctx, "Allocer2", "Alloc.java", 33, 444);26 }27}28 29void *Thread(void *p) {30 barrier_wait(&barrier);31 __tsan_func_entry(2345 | kExternalPCBit);32 __tsan_write1_pc((jptr)p + 16, 1234 | kExternalPCBit);33 __tsan_func_exit();34 return 0;35}36 37jptr const kHeapSize = 64 * 1024;38jptr java_heap[kHeapSize];39 40int main() {41 barrier_init(&barrier, 2);42 jptr jheap = (jptr)java_heap;43 __tsan_java_init(jheap, kHeapSize);44 const int kBlockSize = 32;45 __tsan_func_entry(3456 | kExternalPCBit);46 __tsan_java_alloc(jheap, kBlockSize);47 print_address("addr:", 2, jheap, jheap + 16);48 __tsan_func_exit();49 pthread_t th;50 pthread_create(&th, 0, Thread, (void*)jheap);51 __tsan_func_entry(2345 | kExternalPCBit);52 __tsan_write1_pc(jheap + 16, 1234 | kExternalPCBit);53 __tsan_func_exit();54 barrier_wait(&barrier);55 pthread_join(th, 0);56 __tsan_java_free(jheap, kBlockSize);57 fprintf(stderr, "DONE\n");58 return __tsan_java_fini();59}60 61// CHECK: addr:[[BLOCK:0x[0-9,a-f]+]] [[ADDR:0x[0-9,a-f]+]]62// CHECK: WARNING: ThreadSanitizer: data race63// CHECK: Write of size 1 at [[ADDR]] by thread T1:64// CHECK: #0 MyInnerFunc MyInnerFile.java:1234:5665// CHECK: #1 MyOuterFunc MyOuterFile.java:4321:6566// CHECK: #2 Caller1 CallerFile.java:111:2267// CHECK: #3 Caller2 CallerFile.java:333:4468// CHECK: Previous write of size 1 at [[ADDR]] by main thread:69// CHECK: #0 MyInnerFunc MyInnerFile.java:1234:5670// CHECK: #1 MyOuterFunc MyOuterFile.java:4321:6571// CHECK: #2 Caller1 CallerFile.java:111:2272// CHECK: #3 Caller2 CallerFile.java:333:4473// CHECK: Location is heap block of size 32 at [[BLOCK]] allocated by main thread:74// CHECK: #0 Allocer1 Alloc.java:11:22275// CHECK: #1 Allocer2 Alloc.java:33:44476// CHECK: DONE77