forked from OSchip/llvm-project
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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#include "java.h"
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#include <memory.h>
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extern "C" bool __tsan_symbolize_external(jptr pc,
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char *func_buf, jptr func_siz,
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char *file_buf, jptr file_siz,
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int *line, int *col) {
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if (pc == (1234 | kExternalPCBit)) {
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memcpy(func_buf, "MyFunc", sizeof("MyFunc"));
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memcpy(file_buf, "MyFile.java", sizeof("MyFile.java"));
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*line = 1234;
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*col = 56;
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return true;
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}
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return false;
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}
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void *Thread(void *p) {
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barrier_wait(&barrier);
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__tsan_write1_pc((jptr)p, 1234 | kExternalPCBit);
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return 0;
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}
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int main() {
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barrier_init(&barrier, 2);
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int const kHeapSize = 1024 * 1024;
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jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;
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__tsan_java_init(jheap, kHeapSize);
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const int kBlockSize = 16;
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__tsan_java_alloc(jheap, kBlockSize);
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pthread_t th;
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pthread_create(&th, 0, Thread, (void*)jheap);
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__tsan_write1_pc((jptr)jheap, 1234 | kExternalPCBit);
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barrier_wait(&barrier);
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pthread_join(th, 0);
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__tsan_java_free(jheap, 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: WARNING: ThreadSanitizer: data race
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// CHECK: #0 MyFunc MyFile.java:1234:56
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// CHECK: DONE
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