1 // RUN: %clang_asan %s -o %t
2 // RUN: %env_asan_opts=intercept_strcmp=false %run %t 2>&1
3 // RUN: %env_asan_opts=intercept_strcmp=true not %run %t 2>&1 | FileCheck %s
4 // RUN: not %run %t 2>&1 | FileCheck %s
5
6 #include <assert.h>
7 #include <stdlib.h>
8 #include <string.h>
9
main(int argc,char ** argv)10 int main(int argc, char **argv) {
11 char s1[] = "abcd";
12 char s2[] = "1234";
13 assert(strcmp(s1, s2) > 0);
14 assert(strcmp(s1 - 1, s2));
15
16 // CHECK: {{.*ERROR: AddressSanitizer: stack-buffer-underflow on address}}
17 // CHECK: READ of size 1
18 return 0;
19 }
20