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// RUN: %clangxx_asan -O0 %s -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O1 %s -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O2 %s -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O3 %s -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O0 %s -DTHREAD -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O1 %s -DTHREAD -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O2 %s -DTHREAD -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O3 %s -DTHREAD -o %t && ASAN_OPTIONS=use_sigaltstack=1 not %t 2>&1 | FileCheck %s
#include <assert.h>
#include <stdlib.h>
#include <pthread.h>
const int BS = 1024;
volatile char x;
void large_frame_func(char *p, int level) {
char buf[BS];
if (p)
assert(p - buf >= BS);
buf[rand() % BS] = 1;
buf[rand() % BS] = 2;
x = buf[rand() % BS];
volatile int y = 1;
if (y)
large_frame_func(buf, level + 1);
// CHECK: {{stack-overflow on address 0x.* \(pc 0x.* sp 0x.* bp 0x.* T.*\)}}
// Frame 0 may be anywhere (in rand(), for example).
// CHECK: {{ #1 0x.* in large_frame_func.*stack-overflow.cc:}}[[@LINE-3]]
}
void *ThreadFn(void* unused) {
large_frame_func(0, 0);
return 0;
}
int main(int argc, char **argv) {
#ifdef THREAD
pthread_t t;
pthread_create(&t, 0, ThreadFn, 0);
pthread_join(t, 0);
#else
large_frame_func(0, 0);
#endif
return 0;
}
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