Merging MinGW changes
This commit is contained in:
Earnie Boyd
@ -1,112 +1,112 @@
|
||||
int
|
||||
__except_handler3(
|
||||
struct _EXCEPTION_RECORD* pExceptionRecord,
|
||||
struct EXCEPTION_REGISTRATION* pRegistrationFrame,
|
||||
struct _CONTEXT* pContextRecord,
|
||||
void* pDispatcherContext
|
||||
)
|
||||
{
|
||||
LONG filterFuncRet;
|
||||
LONG trylevel;
|
||||
EXCEPTION_POINTERS exceptPtrs;
|
||||
PSCOPETABLE pScopeTable;
|
||||
|
||||
|
||||
CLD // Clear the direction flag (make no assumptions!)
|
||||
|
||||
// if neither the EXCEPTION_UNWINDING nor EXCEPTION_EXIT_UNWIND bit
|
||||
// is set... This is true the first time through the handler (the
|
||||
// non-unwinding case)
|
||||
|
||||
if ( ! (pExceptionRecord->ExceptionFlags
|
||||
& (EXCEPTION_UNWINDING | EXCEPTION_EXIT_UNWIND)
|
||||
) )
|
||||
{
|
||||
// Build the EXCEPTION_POINTERS structure on the stack
|
||||
exceptPtrs.ExceptionRecord = pExceptionRecord;
|
||||
exceptPtrs.ContextRecord = pContextRecord;
|
||||
|
||||
// Put the pointer to the EXCEPTION_POINTERS 4 bytes below the
|
||||
// establisher frame. See ASM code for GetExceptionInformation
|
||||
*(PDWORD)((PBYTE)pRegistrationFrame - 4) = &exceptPtrs;
|
||||
|
||||
// Get initial "trylevel" value
|
||||
trylevel = pRegistrationFrame->trylevel
|
||||
|
||||
// Get a pointer to the scopetable array
|
||||
scopeTable = pRegistrationFrame->scopetable;
|
||||
|
||||
search_for_handler:
|
||||
if ( pRegistrationFrame->trylevel != TRYLEVEL_NONE )
|
||||
{
|
||||
if ( pRegistrationFrame->scopetable[trylevel].lpfnFilter )
|
||||
{
|
||||
|
||||
PUSH EBP // Save this frame EBP
|
||||
|
||||
// !!!Very Important!!! Switch to original EBP. This is
|
||||
// what allows all locals in the frame to have the same
|
||||
// value as before the exception occurred.
|
||||
|
||||
EBP = &pRegistrationFrame->_ebp
|
||||
|
||||
// Call the filter function
|
||||
filterFuncRet = scopetable[trylevel].lpfnFilter();
|
||||
|
||||
POP EBP // Restore handler frame EBP
|
||||
|
||||
if ( filterFuncRet != EXCEPTION_CONTINUE_SEARCH )
|
||||
{
|
||||
if ( filterFuncRet < 0 ) // EXCEPTION_CONTINUE_EXECUTION
|
||||
return ExceptionContinueExecution;
|
||||
|
||||
// If we get here, EXCEPTION_EXECUTE_HANDLER was specified
|
||||
scopetable == pRegistrationFrame->scopetable
|
||||
|
||||
// Does the actual OS cleanup of registration frames
|
||||
// Causes this function to recurse
|
||||
__global_unwind2( pRegistrationFrame );
|
||||
|
||||
|
||||
// Once we get here, everything is all cleaned up, except
|
||||
// for the last frame, where we'll continue execution
|
||||
EBP = &pRegistrationFrame->_ebp
|
||||
|
||||
__local_unwind2( pRegistrationFrame, trylevel );
|
||||
|
||||
// NLG == "non-local-goto" (setjmp/longjmp stuff)
|
||||
__NLG_Notify( 1 ); // EAX == scopetable->lpfnHandler
|
||||
|
||||
// Set the current trylevel to whatever SCOPETABLE entry
|
||||
// was being used when a handler was found
|
||||
pRegistrationFrame->trylevel = scopetable->previousTryLevel;
|
||||
|
||||
// Call the _except {} block. Never returns.
|
||||
pRegistrationFrame->scopetable[trylevel].lpfnHandler();
|
||||
}
|
||||
}
|
||||
|
||||
scopeTable = pRegistrationFrame->scopetable;
|
||||
trylevel = scopeTable->previousTryLevel
|
||||
|
||||
goto search_for_handler;
|
||||
}
|
||||
else // trylevel == TRYLEVEL_NONE
|
||||
{
|
||||
retvalue == DISPOSITION_CONTINUE_SEARCH;
|
||||
}
|
||||
}
|
||||
else // EXCEPTION_UNWINDING or EXCEPTION_EXIT_UNWIND flags are set
|
||||
{
|
||||
PUSH EBP // Save EBP
|
||||
|
||||
EBP = pRegistrationFrame->_ebp // Set EBP for __local_unwind2
|
||||
|
||||
__local_unwind2( pRegistrationFrame, TRYLEVEL_NONE )
|
||||
|
||||
POP EBP // Restore EBP
|
||||
|
||||
retvalue == DISPOSITION_CONTINUE_SEARCH;
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
__except_handler3(
|
||||
struct _EXCEPTION_RECORD* pExceptionRecord,
|
||||
struct EXCEPTION_REGISTRATION* pRegistrationFrame,
|
||||
struct _CONTEXT* pContextRecord,
|
||||
void* pDispatcherContext
|
||||
)
|
||||
{
|
||||
LONG filterFuncRet;
|
||||
LONG trylevel;
|
||||
EXCEPTION_POINTERS exceptPtrs;
|
||||
PSCOPETABLE pScopeTable;
|
||||
|
||||
|
||||
CLD // Clear the direction flag (make no assumptions!)
|
||||
|
||||
// if neither the EXCEPTION_UNWINDING nor EXCEPTION_EXIT_UNWIND bit
|
||||
// is set... This is true the first time through the handler (the
|
||||
// non-unwinding case)
|
||||
|
||||
if ( ! (pExceptionRecord->ExceptionFlags
|
||||
& (EXCEPTION_UNWINDING | EXCEPTION_EXIT_UNWIND)
|
||||
) )
|
||||
{
|
||||
// Build the EXCEPTION_POINTERS structure on the stack
|
||||
exceptPtrs.ExceptionRecord = pExceptionRecord;
|
||||
exceptPtrs.ContextRecord = pContextRecord;
|
||||
|
||||
// Put the pointer to the EXCEPTION_POINTERS 4 bytes below the
|
||||
// establisher frame. See ASM code for GetExceptionInformation
|
||||
*(PDWORD)((PBYTE)pRegistrationFrame - 4) = &exceptPtrs;
|
||||
|
||||
// Get initial "trylevel" value
|
||||
trylevel = pRegistrationFrame->trylevel
|
||||
|
||||
// Get a pointer to the scopetable array
|
||||
scopeTable = pRegistrationFrame->scopetable;
|
||||
|
||||
search_for_handler:
|
||||
if ( pRegistrationFrame->trylevel != TRYLEVEL_NONE )
|
||||
{
|
||||
if ( pRegistrationFrame->scopetable[trylevel].lpfnFilter )
|
||||
{
|
||||
|
||||
PUSH EBP // Save this frame EBP
|
||||
|
||||
// !!!Very Important!!! Switch to original EBP. This is
|
||||
// what allows all locals in the frame to have the same
|
||||
// value as before the exception occurred.
|
||||
|
||||
EBP = &pRegistrationFrame->_ebp
|
||||
|
||||
// Call the filter function
|
||||
filterFuncRet = scopetable[trylevel].lpfnFilter();
|
||||
|
||||
POP EBP // Restore handler frame EBP
|
||||
|
||||
if ( filterFuncRet != EXCEPTION_CONTINUE_SEARCH )
|
||||
{
|
||||
if ( filterFuncRet < 0 ) // EXCEPTION_CONTINUE_EXECUTION
|
||||
return ExceptionContinueExecution;
|
||||
|
||||
// If we get here, EXCEPTION_EXECUTE_HANDLER was specified
|
||||
scopetable == pRegistrationFrame->scopetable
|
||||
|
||||
// Does the actual OS cleanup of registration frames
|
||||
// Causes this function to recurse
|
||||
__global_unwind2( pRegistrationFrame );
|
||||
|
||||
|
||||
// Once we get here, everything is all cleaned up, except
|
||||
// for the last frame, where we'll continue execution
|
||||
EBP = &pRegistrationFrame->_ebp
|
||||
|
||||
__local_unwind2( pRegistrationFrame, trylevel );
|
||||
|
||||
// NLG == "non-local-goto" (setjmp/longjmp stuff)
|
||||
__NLG_Notify( 1 ); // EAX == scopetable->lpfnHandler
|
||||
|
||||
// Set the current trylevel to whatever SCOPETABLE entry
|
||||
// was being used when a handler was found
|
||||
pRegistrationFrame->trylevel = scopetable->previousTryLevel;
|
||||
|
||||
// Call the _except {} block. Never returns.
|
||||
pRegistrationFrame->scopetable[trylevel].lpfnHandler();
|
||||
}
|
||||
}
|
||||
|
||||
scopeTable = pRegistrationFrame->scopetable;
|
||||
trylevel = scopeTable->previousTryLevel
|
||||
|
||||
goto search_for_handler;
|
||||
}
|
||||
else // trylevel == TRYLEVEL_NONE
|
||||
{
|
||||
retvalue == DISPOSITION_CONTINUE_SEARCH;
|
||||
}
|
||||
}
|
||||
else // EXCEPTION_UNWINDING or EXCEPTION_EXIT_UNWIND flags are set
|
||||
{
|
||||
PUSH EBP // Save EBP
|
||||
|
||||
EBP = pRegistrationFrame->_ebp // Set EBP for __local_unwind2
|
||||
|
||||
__local_unwind2( pRegistrationFrame, TRYLEVEL_NONE )
|
||||
|
||||
POP EBP // Restore EBP
|
||||
|
||||
retvalue == DISPOSITION_CONTINUE_SEARCH;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user