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#include <stdio.h>
#include <windows.h>
#include "testwinlib.h"
int exceptionCount;
int continueCount;
LONG WINAPI customExceptionHandlder(struct _EXCEPTION_POINTERS *ExceptionInfo)
{
if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT)
{
exceptionCount++;
// prepare context to resume execution
CONTEXT *c = ExceptionInfo->ContextRecord;
c->Rip = *(ULONG_PTR *)c->Rsp;
c->Rsp += 8;
return EXCEPTION_CONTINUE_EXECUTION;
}
return EXCEPTION_CONTINUE_SEARCH;
}
LONG WINAPI customContinueHandlder(struct _EXCEPTION_POINTERS *ExceptionInfo)
{
if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT)
{
continueCount++;
return EXCEPTION_CONTINUE_EXECUTION;
}
return EXCEPTION_CONTINUE_SEARCH;
}
void throwFromC()
{
DebugBreak();
}
int main()
{
// simulate a "lazily" attached debugger, by calling some go code before attaching the exception/continue handler
Dummy();
exceptionCount = 0;
continueCount = 0;
void *exceptionHandlerHandle = AddVectoredExceptionHandler(0, customExceptionHandlder);
if (NULL == exceptionHandlerHandle)
{
printf("cannot add vectored exception handler\n");
fflush(stdout);
return 2;
}
void *continueHandlerHandle = AddVectoredContinueHandler(0, customContinueHandlder);
if (NULL == continueHandlerHandle)
{
printf("cannot add vectored continue handler\n");
fflush(stdout);
return 2;
}
CallMeBack(throwFromC);
RemoveVectoredContinueHandler(continueHandlerHandle);
RemoveVectoredExceptionHandler(exceptionHandlerHandle);
printf("exceptionCount: %d\ncontinueCount: %d\n", exceptionCount, continueCount);
fflush(stdout);
return 0;
}
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