1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2*bcaeed49SFangrui Song #include "java.h" 3*bcaeed49SFangrui Song #include <memory.h> 4*bcaeed49SFangrui Song 5*bcaeed49SFangrui Song extern "C" void __tsan_symbolize_external_ex( 6*bcaeed49SFangrui Song jptr pc, void (*add_frame)(void *, const char *, const char *, int, int), 7*bcaeed49SFangrui Song void *ctx) { 8*bcaeed49SFangrui Song if (pc == (1234 | kExternalPCBit)) { 9*bcaeed49SFangrui Song add_frame(ctx, "MyInnerFunc", "MyInnerFile.java", 1234, 56); 10*bcaeed49SFangrui Song add_frame(ctx, "MyOuterFunc", "MyOuterFile.java", 4321, 65); 11*bcaeed49SFangrui Song } 12*bcaeed49SFangrui Song } 13*bcaeed49SFangrui Song 14*bcaeed49SFangrui Song void *Thread(void *p) { 15*bcaeed49SFangrui Song barrier_wait(&barrier); 16*bcaeed49SFangrui Song __tsan_write1_pc((jptr)p, 1234 | kExternalPCBit); 17*bcaeed49SFangrui Song return 0; 18*bcaeed49SFangrui Song } 19*bcaeed49SFangrui Song 20*bcaeed49SFangrui Song int main() { 21*bcaeed49SFangrui Song barrier_init(&barrier, 2); 22*bcaeed49SFangrui Song int const kHeapSize = 1024 * 1024; 23*bcaeed49SFangrui Song jptr jheap = (jptr)malloc(kHeapSize + 8) + 8; 24*bcaeed49SFangrui Song __tsan_java_init(jheap, kHeapSize); 25*bcaeed49SFangrui Song const int kBlockSize = 16; 26*bcaeed49SFangrui Song __tsan_java_alloc(jheap, kBlockSize); 27*bcaeed49SFangrui Song pthread_t th; 28*bcaeed49SFangrui Song pthread_create(&th, 0, Thread, (void*)jheap); 29*bcaeed49SFangrui Song __tsan_write1_pc((jptr)jheap, 1234 | kExternalPCBit); 30*bcaeed49SFangrui Song barrier_wait(&barrier); 31*bcaeed49SFangrui Song pthread_join(th, 0); 32*bcaeed49SFangrui Song __tsan_java_free(jheap, kBlockSize); 33*bcaeed49SFangrui Song fprintf(stderr, "DONE\n"); 34*bcaeed49SFangrui Song return __tsan_java_fini(); 35*bcaeed49SFangrui Song } 36*bcaeed49SFangrui Song 37*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race 38*bcaeed49SFangrui Song // CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56 39*bcaeed49SFangrui Song // CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65 40*bcaeed49SFangrui Song // CHECK: DONE 41