f5675e7e2a
New API passes a callback function to the external symbolizer, allowing it to add multiple frames to the traceback. Note that the old interface API will be still supported until the clients migrate to the new one. Author: asmundak (Alexander Smundak) Reviewed in: https://reviews.llvm.org/D44714 llvm-svn: 328079
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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