76 lines
2.6 KiB
C++
76 lines
2.6 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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#if (__APPLE__)
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__attribute__((weak)) // Required for dyld macOS 12.0+
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#endif
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__attribute__((disable_sanitizer_instrumentation))
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extern "C" void
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__tsan_symbolize_external_ex(jptr pc,
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void (*add_frame)(void *, const char *,
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const char *, int, int),
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void *ctx) {
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if (pc == (1234 | kExternalPCBit)) {
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add_frame(ctx, "MyInnerFunc", "MyInnerFile.java", 1234, 56);
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add_frame(ctx, "MyOuterFunc", "MyOuterFile.java", 4321, 65);
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}
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if (pc == (2345 | kExternalPCBit)) {
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add_frame(ctx, "Caller1", "CallerFile.java", 111, 22);
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add_frame(ctx, "Caller2", "CallerFile.java", 333, 44);
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}
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if (pc == (3456 | kExternalPCBit)) {
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add_frame(ctx, "Allocer1", "Alloc.java", 11, 222);
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add_frame(ctx, "Allocer2", "Alloc.java", 33, 444);
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}
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}
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void *Thread(void *p) {
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barrier_wait(&barrier);
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__tsan_func_entry(2345 | kExternalPCBit);
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__tsan_write1_pc((jptr)p + 16, 1234 | kExternalPCBit);
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__tsan_func_exit();
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return 0;
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}
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jptr const kHeapSize = 64 * 1024;
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jptr java_heap[kHeapSize];
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int main() {
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barrier_init(&barrier, 2);
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jptr jheap = (jptr)java_heap;
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__tsan_java_init(jheap, kHeapSize);
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const int kBlockSize = 32;
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__tsan_func_entry(3456 | kExternalPCBit);
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__tsan_java_alloc(jheap, kBlockSize);
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print_address("addr:", 2, jheap, jheap + 16);
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__tsan_func_exit();
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pthread_t th;
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pthread_create(&th, 0, Thread, (void*)jheap);
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__tsan_func_entry(2345 | kExternalPCBit);
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__tsan_write1_pc(jheap + 16, 1234 | kExternalPCBit);
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__tsan_func_exit();
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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: addr:[[BLOCK:0x[0-9,a-f]+]] [[ADDR:0x[0-9,a-f]+]]
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK: Write of size 1 at [[ADDR]] by thread T1:
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// CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56
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// CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65
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// CHECK: #2 Caller1 CallerFile.java:111:22
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// CHECK: #3 Caller2 CallerFile.java:333:44
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// CHECK: Previous write of size 1 at [[ADDR]] by main thread:
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// CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56
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// CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65
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// CHECK: #2 Caller1 CallerFile.java:111:22
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// CHECK: #3 Caller2 CallerFile.java:333:44
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// CHECK: Location is heap block of size 32 at [[BLOCK]] allocated by main thread:
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// CHECK: #0 Allocer1 Alloc.java:11:222
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// CHECK: #1 Allocer2 Alloc.java:33:444
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// CHECK: DONE
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