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// RUN: %clangxx_tsan -O1 %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s
// RUN: %run %t arg 2>&1 | FileCheck %s
#include "java.h"
jptr varaddr1_old;
jptr varaddr2_old;
jptr lockaddr1_old;
jptr lockaddr2_old;
jptr varaddr1_new;
jptr varaddr2_new;
jptr lockaddr1_new;
jptr lockaddr2_new;
void *Thread(void *p) {
barrier_wait(&barrier);
__tsan_java_mutex_lock(lockaddr1_new);
*(char*)varaddr1_new = 43;
__tsan_java_mutex_unlock(lockaddr1_new);
__tsan_java_mutex_lock(lockaddr2_new);
*(char*)varaddr2_new = 43;
__tsan_java_mutex_unlock(lockaddr2_new);
return 0;
}
int main(int argc, char **argv) {
barrier_init(&barrier, 2);
int const kHeapSize = 1024 * 1024;
void *jheap = malloc(kHeapSize);
jheap = (char*)jheap + 8;
__tsan_java_init((jptr)jheap, kHeapSize);
const int kBlockSize = 64;
int const kMove = 32;
varaddr1_old = (jptr)jheap;
lockaddr1_old = (jptr)jheap + 1;
varaddr2_old = (jptr)jheap + kBlockSize - 1;
lockaddr2_old = (jptr)jheap + kBlockSize - 16;
varaddr1_new = varaddr1_old + kMove;
lockaddr1_new = lockaddr1_old + kMove;
varaddr2_new = varaddr2_old + kMove;
lockaddr2_new = lockaddr2_old + kMove;
if (argc > 1) {
// Move memory backwards.
varaddr1_old += kMove;
lockaddr1_old += kMove;
varaddr2_old += kMove;
lockaddr2_old += kMove;
varaddr1_new -= kMove;
lockaddr1_new -= kMove;
varaddr2_new -= kMove;
lockaddr2_new -= kMove;
}
__tsan_java_alloc(varaddr1_old, kBlockSize);
pthread_t th;
pthread_create(&th, 0, Thread, 0);
__tsan_java_mutex_lock(lockaddr1_old);
*(char*)varaddr1_old = 43;
__tsan_java_mutex_unlock(lockaddr1_old);
__tsan_java_mutex_lock(lockaddr2_old);
*(char*)varaddr2_old = 43;
__tsan_java_mutex_unlock(lockaddr2_old);
__tsan_java_move(varaddr1_old, varaddr1_new, kBlockSize);
barrier_wait(&barrier);
pthread_join(th, 0);
__tsan_java_free(varaddr1_new, kBlockSize);
fprintf(stderr, "DONE\n");
return __tsan_java_fini();
}
// CHECK-NOT: WARNING: ThreadSanitizer: data race
// CHECK: DONE
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