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