| 1 | // Test the handle_sigill option. |
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| 2 | // |
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| 3 | // RUN: %clangxx_asan %s -o %t && %env_asan_opts=handle_sigill=0 not --crash %run %t 2>&1 | FileCheck %s --check-prefix=CHECK0 |
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| 4 | // RUN: %clangxx_asan %s -o %t && %env_asan_opts=handle_sigill=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1 |
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| 5 | // REQUIRES: x86-target-arch && (!MSVC || asan-32-bits) |
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| 6 | |
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| 7 | #ifdef _WIN32 |
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| 8 | #include <windows.h> |
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| 9 | #endif |
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| 10 | |
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| 11 | // note: test is limited to i386 only ("asan-32-bits") when using "real" MSVC |
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| 12 | // see the requires clause above |
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| 13 | #if defined(_MSC_VER) && !defined(__clang__) |
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| 14 | # define __builtin_trap() __asm ud2; |
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| 15 | #endif |
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| 16 | |
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| 17 | int main(int argc, char **argv) { |
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| 18 | #ifdef _WIN32 |
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| 19 | // Sometimes on Windows this test generates a WER fault dialog. Suppress that. |
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| 20 | UINT new_flags = SEM_FAILCRITICALERRORS | |
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| 21 | SEM_NOGPFAULTERRORBOX | |
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| 22 | SEM_NOOPENFILEERRORBOX; |
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| 23 | // Preserve existing error mode, as discussed at |
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| 24 | // http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx |
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| 25 | UINT existing_flags = SetErrorMode(new_flags); |
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| 26 | SetErrorMode(existing_flags | new_flags); |
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| 27 | #endif |
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| 28 | |
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| 29 | if (argc) |
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| 30 | __builtin_trap(); |
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| 31 | // Unreachable code to avoid confusing the Windows unwinder. |
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| 32 | #ifdef _WIN32 |
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| 33 | SetErrorMode(0); |
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| 34 | #endif |
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| 35 | } |
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| 36 | // CHECK0-NOT: ERROR: AddressSanitizer |
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| 37 | // CHECK1: ERROR: AddressSanitizer: {{ILL|illegal-instruction}} on unknown address {{0x0*}} |
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| 38 | |
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