e3230295fa
It broke lit tests on Mac, see comments on the code review. > Reviewed By: vitalybuka, dvyukov > > Differential Revision: https://reviews.llvm.org/D147337 This reverts commit ebb0f1d0639eeca5479fa4bfdc1ebcebf5c21dee and follow-up commit 3c83aeee6b7d5e9ac5de1e29605ee57c2b800ca1.
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
// RUN: %clangxx_tsan -O1 %s -o %t
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// RUN: %deflake %run %t 2>&1 | FileCheck %s
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "../test.h"
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extern "C" {
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void __tsan_on_report(void *report);
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int __tsan_get_report_loc(void *report, unsigned long idx, const char **type,
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void **addr, void **start,
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unsigned long *size, int *tid, int *fd,
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int *suppressable, void **trace,
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unsigned long trace_size);
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int __tsan_get_report_loc_object_type(void *report, unsigned long idx,
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const char **object_type);
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}
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void *Thread(void *arg) {
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barrier_wait(&barrier);
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*((long *)arg) = 42;
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return NULL;
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}
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int main() {
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barrier_init(&barrier, 2);
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void *tag = __tsan_external_register_tag("MyObject");
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long *obj = (long *)malloc(sizeof(long));
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fprintf(stderr, "obj = %p\n", obj);
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// CHECK: obj = [[ADDR:0x[0-9a-f]+]]
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__tsan_external_assign_tag(obj, tag);
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pthread_t t;
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pthread_create(&t, 0, Thread, obj);
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*obj = 41;
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barrier_wait(&barrier);
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pthread_join(t, 0);
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fprintf(stderr, "Done.\n");
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return 0;
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}
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// Required for dyld macOS 12.0+
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#if (__APPLE__)
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__attribute__((weak))
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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_on_report(void *report) {
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const char *type;
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void *addr;
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void *start;
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unsigned long size;
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int tid, fd, suppressable;
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void *trace[16] = {0};
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__tsan_get_report_loc(report, 0, &type, &addr, &start, &size, &tid, &fd,
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&suppressable, trace, 16);
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fprintf(stderr, "type = %s, start = %p, size = %ld\n", type, start, size);
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// CHECK: type = heap, start = [[ADDR]], size = 8
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const char *object_type;
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__tsan_get_report_loc_object_type(report, 0, &object_type);
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fprintf(stderr, "object_type = %s\n", object_type);
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// CHECK: object_type = MyObject
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}
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// CHECK: Done.
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// CHECK: ThreadSanitizer: reported 1 warnings
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