compiler-rt/test/asan/TestCases/suppressions-library.cpp

   1 // RUN: %clangxx_asan -O0 -DSHARED_LIB %s %fPIC -shared -o %dynamiclib %ld_flags_rpath_so
   2 // RUN: %clangxx_asan -O0 %s -o %t %ld_flags_rpath_exe
   3
   4 // Check that without suppressions, we catch the issue.
   5 // RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
   6
   7 // REQUIRES: shell
   8
   9 // RUN: echo "interceptor_via_lib:"%xdynamiclib_filename > %t.supp
  10 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t 2>&1 | FileCheck --check-prefix=CHECK-IGNORE %s
  11
  12 // XFAIL: android
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17
  18 #if !defined(SHARED_LIB)
  19
  20 void crash_function();
  21
  22 int main(int argc, char *argv[]) {
  23   crash_function();
  24   return 0;
  25 }
  26
  27 #else // SHARED_LIB
  28
  29 void crash_function() {
  30   char *a = (char *)malloc(6);
  31   free(a);
  32   size_t len = strlen(a); // BOOM
  33   fprintf(stderr, "strlen ignored, %zu\n", len);
  34 }
  35
  36 #endif // SHARED_LIB
  37
  38 // CHECK-CRASH: AddressSanitizer: heap-use-after-free
  39 // CHECK-CRASH-NOT: strlen ignored
  40 // CHECK-IGNORE-NOT: AddressSanitizer: heap-use-after-free
  41 // CHECK-IGNORE: strlen ignored