| 1 | // RUN: %clang_cl_asan %Od %p/dll_host.cpp %Fe%t |
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| 2 | // RUN: %clang_cl_asan %LD %Od %s %Fe%t.dll |
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| 3 | // RUN: not %run %t %t.dll 2>&1 | FileCheck %s |
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| 4 | |
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| 5 | // On windows 64-bit, the memchr function is written in assembly and is not |
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| 6 | // hookable with the interception library. There is not enough padding before |
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| 7 | // the function and there is a short jump on the second instruction which |
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| 8 | // doesn't not allow enough space to encode a 64-bit indirect jump. |
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| 9 | // UNSUPPORTED: x86_64-windows |
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| 10 | |
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| 11 | #include <string.h> |
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| 12 | |
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| 13 | extern "C" __declspec(dllexport) |
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| 14 | int test_function() { |
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| 15 | char buff[6] = "Hello" ; |
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| 16 | |
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| 17 | memchr(s: buff, c: 'z', n: 7); |
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| 18 | // CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] |
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| 19 | // CHECK: READ of size 7 at [[ADDR]] thread T0 |
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| 20 | // CHECK-NEXT: memchr |
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| 21 | // CHECK-NEXT: memchr |
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| 22 | // CHECK-NEXT: test_function {{.*}}dll_intercept_memchr.cpp:[[@LINE-5]] |
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| 23 | // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame |
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| 24 | // CHECK-NEXT: test_function {{.*}}dll_intercept_memchr.cpp |
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| 25 | // CHECK: 'buff'{{.*}} <== Memory access at offset {{.*}} overflows this variable |
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| 26 | return 0; |
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| 27 | } |
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| 28 | |
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