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

   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
  14 void crash_function() {
  15   char *a = (char *)malloc(6);
  16   free(a);
  17   size_t len = strlen(a); // BOOM
  18   fprintf(stderr, "strlen ignored, len = %zu\n", len);
  19 }
  20
  21 int 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