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