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, f, g, h;
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 pretend_to_do_something(&f);
33 pretend_to_do_something(&g);
34 pretend_to_do_something(&h);
35 fprintf(stderr, "Throw stack = %p\n", &a);
36 ReallyThrow();
37 }
38
39 __attribute__((noinline))
CheckStack()40 void CheckStack() {
41 int ar[100];
42 pretend_to_do_something(ar);
43 fprintf(stderr, "CheckStack stack = %p, %p\n", ar, ar + 100);
44 for (int i = 0; i < 100; i++)
45 ar[i] = i;
46 }
47
main(int argc,char ** argv)48 int main(int argc, char** argv) {
49 try {
50 Throw();
51 } catch(int a) {
52 fprintf(stderr, "a = %d\n", a);
53 }
54 CheckStack();
55 }
56