1// RUN: %clang_cl_asan %Od %s %Fe%t
2// RUN: not %run %t 2>&1 | FileCheck %s
3
4#include <windows.h>
5
6DWORD WINAPI thread_proc(void *) {
7 int subscript = -1;
8 volatile char stack_buffer[42];
9 stack_buffer[subscript] = 42;
10// CHECK: AddressSanitizer: stack-buffer-underflow on address [[ADDR:0x[0-9a-f]+]]
11// CHECK: WRITE of size 1 at [[ADDR]] thread T1
12// CHECK: {{#0 .* thread_proc.*thread_stack_array_left_oob.cpp}}:[[@LINE-3]]
13// CHECK: Address [[ADDR]] is located in stack of thread T1 at offset {{.*}} in frame
14// CHECK: thread_proc
15 return 0;
16}
17
18int main() {
19 HANDLE thr = CreateThread(NULL, 0, thread_proc, NULL, 0, NULL);
20// CHECK: Thread T1 created by T0 here:
21// CHECK: {{#[01] .* main .*thread_stack_array_left_oob.cpp}}:[[@LINE-2]]
22
23 // A failure to create a thread should fail the test!
24 if (thr == 0) return 0;
25
26 WaitForSingleObject(thr, INFINITE);
27}
28

source code of compiler-rt/test/asan/TestCases/Windows/thread_stack_array_left_oob.cpp