1 // RUN: %clang_cl_asan -O0 %s -Fe%t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 4 #include <windows.h> 5 thread_proc(void *)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.cc}}:[[@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 main()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.cc}}:[[@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