test/asan/TestCases/throw_call_test.cc

   1 // RUN: %clangxx_asan %s -o %t && %t
   2 // http://code.google.com/p/address-sanitizer/issues/detail?id=147 (not fixed).
   3 // BROKEN: %clangxx_asan %s -o %t -static-libstdc++ && %t
   4 //
   5 // Android builds with static libstdc++ by default.
   6 // XFAIL: android
   7
   8 #include <stdio.h>
   9 static volatile int zero = 0;
  10 inline void pretend_to_do_something(void *x) {
  11   __asm__ __volatile__("" : : "r" (x) : "memory");
  12 }
  13
  14 __attribute__((noinline, no_sanitize_address))
  15 void ReallyThrow() {
  16   fprintf(stderr, "ReallyThrow\n");
  17   if (zero == 0)
  18     throw 42;
  19 }
  20
  21 __attribute__((noinline))
  22 void Throw() {
  23   int a, b, c, d, e;
  24   pretend_to_do_something(&a);
  25   pretend_to_do_something(&b);
  26   pretend_to_do_something(&c);
  27   pretend_to_do_something(&d);
  28   pretend_to_do_something(&e);
  29   fprintf(stderr, "Throw stack = %p\n", &a);
  30   ReallyThrow();
  31 }
  32
  33 __attribute__((noinline))
  34 void CheckStack() {
  35   int ar[100];
  36   pretend_to_do_something(ar);
  37   for (int i = 0; i < 100; i++)
  38     ar[i] = i;
  39   fprintf(stderr, "CheckStack stack = %p, %p\n", ar, ar + 100);
  40 }
  41
  42 int main(int argc, char** argv) {
  43   try {
  44     Throw();
  45   } catch(int a) {
  46     fprintf(stderr, "a = %d\n", a);
  47   }
  48   CheckStack();
  49 }