Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-02-25 01:39:30 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Fixed RtlUnwind to correctly remove SEH frames and not to call ZwContinue.

Browse source 
svn path=/trunk/; revision=10010
This commit is contained in:
Filip Navara 2004-07-07 16:25:00 +00:00
parent 7a25c2785c
commit bfb94c6d6f
1 changed files with 15 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

50
reactos/lib/rtl/i386/exception.c
View file

@ -1,4 +1,4 @@
/* $Id: exception.c,v 1.2 2004/07/04 02:01:02 navaraf Exp $
/* $Id: exception.c,v 1.3 2004/07/07 16:25:00 navaraf Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -13,7 +13,7 @@
#include <windows.h>
#include <string.h>
//#define NDEBUG
#define NDEBUG
#include <debug.h>
/* FUNCTIONS ***************************************************************/
@ -307,34 +307,25 @@ RtlUnwind(PEXCEPTION_REGISTRATION RegistrationFrame,
Context.Eax = EaxValue;
// Begin traversing the list of EXCEPTION_REGISTRATION
while ((ULONG_PTR)ERHead != -1)
while ((ULONG_PTR)ERHead != -1 && ERHead != RegistrationFrame)
{
EXCEPTION_RECORD er2;
DPRINT("ERHead 0x%X\n", ERHead);
if (ERHead == RegistrationFrame)
// If there's an exception frame, but it's lower on the stack
// than the head of the exception list, something's wrong!
if (RegistrationFrame && (RegistrationFrame <= ERHead))
{
DPRINT("Continueing execution\n");
ZwContinue(&Context, FALSE);
return;
}
else
{
// If there's an exception frame, but it's lower on the stack
// than the head of the exception list, something's wrong!
if (RegistrationFrame && (RegistrationFrame <= ERHead))
{
DPRINT("The exception frame is bad\n");
DPRINT("The exception frame is bad\n");
// Generate an exception to bail out
er2.ExceptionRecord = pExceptRec;
er2.NumberParameters = 0;
er2.ExceptionCode = STATUS_INVALID_UNWIND_TARGET;
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
// Generate an exception to bail out
er2.ExceptionRecord = pExceptRec;
er2.NumberParameters = 0;
er2.ExceptionCode = STATUS_INVALID_UNWIND_TARGET;
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
RtlRaiseException(&er2);
}
RtlRaiseException(&er2);
}
#if 0
@ -386,10 +377,10 @@ RtlUnwind(PEXCEPTION_REGISTRATION RegistrationFrame,
DPRINT("New ERHead is 0x%X\n", ERHead);
DPRINT("Setting exception registration at 0x%X as current\n",
RegistrationFrame->prev);
/*RegistrationFrame->prev*/ pCurrExceptReg->prev);
// Unlink the exception handler
SehpSetExceptionList(RegistrationFrame->prev);
SehpSetExceptionList(pCurrExceptReg->prev);
}
else // The stack looks goofy! Raise an exception to bail out
{
@ -403,17 +394,6 @@ RtlUnwind(PEXCEPTION_REGISTRATION RegistrationFrame,
RtlRaiseException(&er2);
}
}
// If we get here, we reached the end of the EXCEPTION_REGISTRATION list.
// This shouldn't happen normally.
DPRINT("Ran out of exception registrations. RegistrationFrame is (0x%X)\n",
RegistrationFrame);
if ((ULONG_PTR)RegistrationFrame == -1)
ZwContinue(&Context, FALSE);
else
NtRaiseException(pExceptRec, &Context, 0);
}
/* EOF */