1*7c3d14c8STreehugger Robot // RUN: %clangxx_tsan -O1 %s -o %t
2*7c3d14c8STreehugger Robot // RUN: %run %t 2>&1 | FileCheck %s
3*7c3d14c8STreehugger Robot // RUN: %run %t arg 2>&1 | FileCheck %s
4*7c3d14c8STreehugger Robot #include "java.h"
5*7c3d14c8STreehugger Robot
6*7c3d14c8STreehugger Robot jptr varaddr1_old;
7*7c3d14c8STreehugger Robot jptr varaddr2_old;
8*7c3d14c8STreehugger Robot jptr lockaddr1_old;
9*7c3d14c8STreehugger Robot jptr lockaddr2_old;
10*7c3d14c8STreehugger Robot jptr varaddr1_new;
11*7c3d14c8STreehugger Robot jptr varaddr2_new;
12*7c3d14c8STreehugger Robot jptr lockaddr1_new;
13*7c3d14c8STreehugger Robot jptr lockaddr2_new;
14*7c3d14c8STreehugger Robot
Thread(void * p)15*7c3d14c8STreehugger Robot void *Thread(void *p) {
16*7c3d14c8STreehugger Robot barrier_wait(&barrier);
17*7c3d14c8STreehugger Robot __tsan_java_mutex_lock(lockaddr1_new);
18*7c3d14c8STreehugger Robot *(char*)varaddr1_new = 43;
19*7c3d14c8STreehugger Robot __tsan_java_mutex_unlock(lockaddr1_new);
20*7c3d14c8STreehugger Robot __tsan_java_mutex_lock(lockaddr2_new);
21*7c3d14c8STreehugger Robot *(char*)varaddr2_new = 43;
22*7c3d14c8STreehugger Robot __tsan_java_mutex_unlock(lockaddr2_new);
23*7c3d14c8STreehugger Robot return 0;
24*7c3d14c8STreehugger Robot }
25*7c3d14c8STreehugger Robot
main(int argc,char ** argv)26*7c3d14c8STreehugger Robot int main(int argc, char **argv) {
27*7c3d14c8STreehugger Robot barrier_init(&barrier, 2);
28*7c3d14c8STreehugger Robot int const kHeapSize = 1024 * 1024;
29*7c3d14c8STreehugger Robot void *jheap = malloc(kHeapSize);
30*7c3d14c8STreehugger Robot jheap = (char*)jheap + 8;
31*7c3d14c8STreehugger Robot __tsan_java_init((jptr)jheap, kHeapSize);
32*7c3d14c8STreehugger Robot const int kBlockSize = 64;
33*7c3d14c8STreehugger Robot int const kMove = 32;
34*7c3d14c8STreehugger Robot varaddr1_old = (jptr)jheap;
35*7c3d14c8STreehugger Robot lockaddr1_old = (jptr)jheap + 1;
36*7c3d14c8STreehugger Robot varaddr2_old = (jptr)jheap + kBlockSize - 1;
37*7c3d14c8STreehugger Robot lockaddr2_old = (jptr)jheap + kBlockSize - 16;
38*7c3d14c8STreehugger Robot varaddr1_new = varaddr1_old + kMove;
39*7c3d14c8STreehugger Robot lockaddr1_new = lockaddr1_old + kMove;
40*7c3d14c8STreehugger Robot varaddr2_new = varaddr2_old + kMove;
41*7c3d14c8STreehugger Robot lockaddr2_new = lockaddr2_old + kMove;
42*7c3d14c8STreehugger Robot if (argc > 1) {
43*7c3d14c8STreehugger Robot // Move memory backwards.
44*7c3d14c8STreehugger Robot varaddr1_old += kMove;
45*7c3d14c8STreehugger Robot lockaddr1_old += kMove;
46*7c3d14c8STreehugger Robot varaddr2_old += kMove;
47*7c3d14c8STreehugger Robot lockaddr2_old += kMove;
48*7c3d14c8STreehugger Robot varaddr1_new -= kMove;
49*7c3d14c8STreehugger Robot lockaddr1_new -= kMove;
50*7c3d14c8STreehugger Robot varaddr2_new -= kMove;
51*7c3d14c8STreehugger Robot lockaddr2_new -= kMove;
52*7c3d14c8STreehugger Robot }
53*7c3d14c8STreehugger Robot __tsan_java_alloc(varaddr1_old, kBlockSize);
54*7c3d14c8STreehugger Robot
55*7c3d14c8STreehugger Robot pthread_t th;
56*7c3d14c8STreehugger Robot pthread_create(&th, 0, Thread, 0);
57*7c3d14c8STreehugger Robot
58*7c3d14c8STreehugger Robot __tsan_java_mutex_lock(lockaddr1_old);
59*7c3d14c8STreehugger Robot *(char*)varaddr1_old = 43;
60*7c3d14c8STreehugger Robot __tsan_java_mutex_unlock(lockaddr1_old);
61*7c3d14c8STreehugger Robot __tsan_java_mutex_lock(lockaddr2_old);
62*7c3d14c8STreehugger Robot *(char*)varaddr2_old = 43;
63*7c3d14c8STreehugger Robot __tsan_java_mutex_unlock(lockaddr2_old);
64*7c3d14c8STreehugger Robot
65*7c3d14c8STreehugger Robot __tsan_java_move(varaddr1_old, varaddr1_new, kBlockSize);
66*7c3d14c8STreehugger Robot barrier_wait(&barrier);
67*7c3d14c8STreehugger Robot pthread_join(th, 0);
68*7c3d14c8STreehugger Robot __tsan_java_free(varaddr1_new, kBlockSize);
69*7c3d14c8STreehugger Robot fprintf(stderr, "DONE\n");
70*7c3d14c8STreehugger Robot return __tsan_java_fini();
71*7c3d14c8STreehugger Robot }
72*7c3d14c8STreehugger Robot
73*7c3d14c8STreehugger Robot // CHECK-NOT: WARNING: ThreadSanitizer: data race
74*7c3d14c8STreehugger Robot // CHECK: DONE
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