compiler-rt/test/asan/TestCases/Darwin/crashlog-stacktraces.c

   1 // RUN: %clang_asan -O0 %s -o %t
   2 // RUN: not %run %t 2>&1 | FileCheck %s
   3
   4 // Since ASan is built with -fomit-frame-pointer, backtrace is not able to
   5 // symbolicate the trace past ASan runtime on i386. (This is fixed in
   6 // latest OS X.)
   7 // REQUIRES: asan-64-bits
   8
   9 #include <execinfo.h>
  10 #include <sanitizer/common_interface_defs.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13
  14 void death_function() {
  15   fprintf(stderr, "DEATH CALLBACK\n");
  16
  17   void* callstack[128];
  18   int i, frames = backtrace(callstack, 128);
  19   char** strs = backtrace_symbols(callstack, frames);
  20   for (i = 0; i < frames; ++i) {
  21     fprintf(stderr, "%s\n", strs[i]);
  22   }
  23   free(strs);
  24
  25   fprintf(stderr, "END OF BACKTRACE\n");
  26 }
  27
  28 int fault_function() {
  29   char *x = (char*)malloc(10 * sizeof(char));
  30   free(x);
  31   return x[5];  // BOOM
  32 }
  33
  34 int main() {
  35   __sanitizer_set_death_callback(death_function);
  36   fault_function();
  37   return 0;
  38 }
  39
  40 // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
  41 // CHECK: {{READ of size 1 at 0x.* thread T0}}
  42 // CHECK: {{    #0 0x.* in fault_function}}
  43
  44 // CHECK: DEATH CALLBACK
  45 // CHECK: death_function
  46 // CHECK: fault_function
  47 // CHECK: main
  48 // CHECK: END OF BACKTRACE