1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t
2*bcaeed49SFangrui Song // RUN: %run %t 2>&1 | FileCheck %s
3*bcaeed49SFangrui Song // RUN: %run %t arg 2>&1 | FileCheck %s
4*bcaeed49SFangrui Song #include "java.h"
5*bcaeed49SFangrui Song
6*bcaeed49SFangrui Song jptr varaddr1_old;
7*bcaeed49SFangrui Song jptr varaddr2_old;
8*bcaeed49SFangrui Song jptr lockaddr1_old;
9*bcaeed49SFangrui Song jptr lockaddr2_old;
10*bcaeed49SFangrui Song jptr varaddr1_new;
11*bcaeed49SFangrui Song jptr varaddr2_new;
12*bcaeed49SFangrui Song jptr lockaddr1_new;
13*bcaeed49SFangrui Song jptr lockaddr2_new;
14*bcaeed49SFangrui Song
Thread(void * p)15*bcaeed49SFangrui Song void *Thread(void *p) {
16*bcaeed49SFangrui Song barrier_wait(&barrier);
17*bcaeed49SFangrui Song __tsan_java_mutex_lock(lockaddr1_new);
18*bcaeed49SFangrui Song *(char*)varaddr1_new = 43;
19*bcaeed49SFangrui Song __tsan_java_mutex_unlock(lockaddr1_new);
20*bcaeed49SFangrui Song __tsan_java_mutex_lock(lockaddr2_new);
21*bcaeed49SFangrui Song *(char*)varaddr2_new = 43;
22*bcaeed49SFangrui Song __tsan_java_mutex_unlock(lockaddr2_new);
23*bcaeed49SFangrui Song return 0;
24*bcaeed49SFangrui Song }
25*bcaeed49SFangrui Song
main(int argc,char ** argv)26*bcaeed49SFangrui Song int main(int argc, char **argv) {
27*bcaeed49SFangrui Song barrier_init(&barrier, 2);
28*bcaeed49SFangrui Song int const kHeapSize = 1024 * 1024;
29*bcaeed49SFangrui Song void *jheap = malloc(kHeapSize);
30*bcaeed49SFangrui Song jheap = (char*)jheap + 8;
31*bcaeed49SFangrui Song __tsan_java_init((jptr)jheap, kHeapSize);
32*bcaeed49SFangrui Song const int kBlockSize = 64;
33*bcaeed49SFangrui Song int const kMove = 32;
34*bcaeed49SFangrui Song varaddr1_old = (jptr)jheap;
35*bcaeed49SFangrui Song lockaddr1_old = (jptr)jheap + 1;
36*bcaeed49SFangrui Song varaddr2_old = (jptr)jheap + kBlockSize - 1;
37*bcaeed49SFangrui Song lockaddr2_old = (jptr)jheap + kBlockSize - 16;
38*bcaeed49SFangrui Song varaddr1_new = varaddr1_old + kMove;
39*bcaeed49SFangrui Song lockaddr1_new = lockaddr1_old + kMove;
40*bcaeed49SFangrui Song varaddr2_new = varaddr2_old + kMove;
41*bcaeed49SFangrui Song lockaddr2_new = lockaddr2_old + kMove;
42*bcaeed49SFangrui Song if (argc > 1) {
43*bcaeed49SFangrui Song // Move memory backwards.
44*bcaeed49SFangrui Song varaddr1_old += kMove;
45*bcaeed49SFangrui Song lockaddr1_old += kMove;
46*bcaeed49SFangrui Song varaddr2_old += kMove;
47*bcaeed49SFangrui Song lockaddr2_old += kMove;
48*bcaeed49SFangrui Song varaddr1_new -= kMove;
49*bcaeed49SFangrui Song lockaddr1_new -= kMove;
50*bcaeed49SFangrui Song varaddr2_new -= kMove;
51*bcaeed49SFangrui Song lockaddr2_new -= kMove;
52*bcaeed49SFangrui Song }
53*bcaeed49SFangrui Song __tsan_java_alloc(varaddr1_old, kBlockSize);
54*bcaeed49SFangrui Song
55*bcaeed49SFangrui Song pthread_t th;
56*bcaeed49SFangrui Song pthread_create(&th, 0, Thread, 0);
57*bcaeed49SFangrui Song
58*bcaeed49SFangrui Song __tsan_java_mutex_lock(lockaddr1_old);
59*bcaeed49SFangrui Song *(char*)varaddr1_old = 43;
60*bcaeed49SFangrui Song __tsan_java_mutex_unlock(lockaddr1_old);
61*bcaeed49SFangrui Song __tsan_java_mutex_lock(lockaddr2_old);
62*bcaeed49SFangrui Song *(char*)varaddr2_old = 43;
63*bcaeed49SFangrui Song __tsan_java_mutex_unlock(lockaddr2_old);
64*bcaeed49SFangrui Song
65*bcaeed49SFangrui Song __tsan_java_move(varaddr1_old, varaddr1_new, kBlockSize);
66*bcaeed49SFangrui Song barrier_wait(&barrier);
67*bcaeed49SFangrui Song pthread_join(th, 0);
68*bcaeed49SFangrui Song __tsan_java_free(varaddr1_new, kBlockSize);
69*bcaeed49SFangrui Song fprintf(stderr, "DONE\n");
70*bcaeed49SFangrui Song return __tsan_java_fini();
71*bcaeed49SFangrui Song }
72*bcaeed49SFangrui Song
73*bcaeed49SFangrui Song // CHECK-NOT: WARNING: ThreadSanitizer: data race
74*bcaeed49SFangrui Song // CHECK: DONE
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