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1 // RUN: %clangxx_asan %s -o %t && %run %t
2 // http://code.google.com/p/address-sanitizer/issues/detail?id=147 (not fixed).
3 // BROKEN: %clangxx_asan %s -o %t -static-libstdc++ && %run %t
4 //
5 // Android builds with static libstdc++ by default.
6 // XFAIL: android
7 
8 // Clang doesn't support exceptions on Windows yet.
9 // XFAIL: win32
10 
11 #include <stdio.h>
12 static volatile int zero = 0;
pretend_to_do_something(void * x)13 inline void pretend_to_do_something(void *x) {
14   __asm__ __volatile__("" : : "r" (x) : "memory");
15 }
16 
17 __attribute__((noinline, no_sanitize_address))
ReallyThrow()18 void ReallyThrow() {
19   fprintf(stderr, "ReallyThrow\n");
20   if (zero == 0)
21     throw 42;
22 }
23 
24 __attribute__((noinline))
Throw()25 void Throw() {
26   int a, b, c, d, e;
27   pretend_to_do_something(&a);
28   pretend_to_do_something(&b);
29   pretend_to_do_something(&c);
30   pretend_to_do_something(&d);
31   pretend_to_do_something(&e);
32   fprintf(stderr, "Throw stack = %p\n", &a);
33   ReallyThrow();
34 }
35 
36 __attribute__((noinline))
CheckStack()37 void CheckStack() {
38   int ar[100];
39   pretend_to_do_something(ar);
40   for (int i = 0; i < 100; i++)
41     ar[i] = i;
42   fprintf(stderr, "CheckStack stack = %p, %p\n", ar, ar + 100);
43 }
44 
main(int argc,char ** argv)45 int main(int argc, char** argv) {
46   try {
47     Throw();
48   } catch(int a) {
49     fprintf(stderr, "a = %d\n", a);
50   }
51   CheckStack();
52 }
53