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 // RUN: %clangxx_asan -O3 %s -o %t && %env_asan_opts=suppressions='"%t.supp"' %run %t 2>&1 | FileCheck --check-prefix=CHECK-IGNORE %s
8 
9 // XFAIL: android
10 // UNSUPPORTED: ios
11 
12 // FIXME: atos does not work for inlined functions, yet llvm-symbolizer
13 // does not always work with debug info on Darwin.
14 // UNSUPPORTED: darwin
15 
16 #include <stdio.h>
17 #include <stdlib.h>
18 #include <string.h>
19 
20 void crash_function() {
21   char *a = (char *)malloc(6);
22   free(a);
23   size_t len = strlen(a); // BOOM
24   fprintf(stderr, "strlen ignored, len = %zu\n", len);
25 }
26 
27 int main() {
28   crash_function();
29 }
30 
31 // CHECK-CRASH: AddressSanitizer: heap-use-after-free
32 // CHECK-CRASH-NOT: strlen ignored
33 // CHECK-IGNORE-NOT: AddressSanitizer: heap-use-after-free
34 // CHECK-IGNORE: strlen ignored
35