1// Check that without suppressions, we catch the issue.
2// RUN: %clangxx_asan -O0 %s -o %t
3// RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
4
5// RUN: echo "interceptor_via_fun:crash_function" > %t.supp
6// RUN: %clangxx_asan -O0 %s -o %t && %env_asan_opts=suppressions='"%t.supp"' %run %t 2>&1 | FileCheck --check-prefix=CHECK-IGNORE %s
7
8// UNSUPPORTED: ios
9
10#include <stdio.h>
11#include <stdlib.h>
12#include <string.h>
13
14void crash_function() {
15 char *a = (char *)malloc(size: 6);
16 free(ptr: a);
17 size_t len = strlen(s: a); // BOOM
18 fprintf(stderr, format: "strlen ignored, len = %zu\n", len);
19}
20
21int main() {
22 crash_function();
23}
24
25// CHECK-CRASH: AddressSanitizer: heap-use-after-free
26// CHECK-CRASH-NOT: strlen ignored
27// CHECK-IGNORE-NOT: AddressSanitizer: heap-use-after-free
28// CHECK-IGNORE: strlen ignored
29

source code of compiler-rt/test/asan/TestCases/Darwin/suppressions-function.cpp