Created
August 11, 2020 07:47
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| #include <hal/debug.h> | |
| #include <hal/video.h> | |
| #include <windows.h> | |
| // The nullpointer deref is in its own function, because LLVM can't catch | |
| // asynchronous exceptions in the same frame that they're thrown in. This is a | |
| // documented MSVC-incompatibility in LLVM, see: | |
| // https://clang.llvm.org/docs/MSVCCompatibility.html#abi-features | |
| static void nullptr_deref (void) | |
| { | |
| int *p = NULL; | |
| *p = 5; | |
| } | |
| int main(void) | |
| { | |
| XVideoSetMode(640, 480, 32, REFRESH_DEFAULT); | |
| __try { | |
| __try { | |
| __try { | |
| nullptr_deref(); | |
| } __except (EXCEPTION_CONTINUE_SEARCH) { | |
| // This filter rejects all exceptions, this block should therefore never run | |
| debugPrint("This should never run!\n"); | |
| } | |
| } __finally { | |
| // This will be called during the unwind pass, after the filter funclet ran, but before the except block runs | |
| debugPrint("__finally called\n"); | |
| } | |
| } __except (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH) { | |
| // This filter accepts EXCEPTION_ACCESS_VIOLATION, therefore it should accept the nullpointer deref | |
| debugPrint("Exception catched!\n"); | |
| } | |
| debugPrint("done\n"); | |
| while(1) { | |
| Sleep(2000); | |
| } | |
| return 0; | |
| } |
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