mirror of
https://github.com/reactos/reactos.git
synced 2024-12-27 01:24:38 +00:00
2002-10-26 Casper S. Hornstrup <chorns@users.sourceforge.net>
* lib/msvcrt/except/seh.s: Fix end-of-line formatting. * lib/ntdll/rtl/i386/exception.c: Ditto. * lib/ntdll/rtl/i386/except.s: Ditto. * ntoskrnl/rtl/i386/except.s: Ditto. * ntoskrnl/rtl/i386/seh.s: Ditto. svn path=/trunk/; revision=3659
This commit is contained in:
Casper Hornstrup
parent
b824c3ef39
commit
9bbe34eb81
6 changed files with 555 additions and 545 deletions
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@ -1,3 +1,11 @@
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2002-10-26 Casper S. Hornstrup <chorns@users.sourceforge.net>
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* lib/msvcrt/except/seh.s: Fix end-of-line formatting.
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* lib/ntdll/rtl/i386/exception.c: Ditto.
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* lib/ntdll/rtl/i386/except.s: Ditto.
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* ntoskrnl/rtl/i386/except.s: Ditto.
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* ntoskrnl/rtl/i386/seh.s: Ditto.
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2002-10-26 Casper S. Hornstrup <chorns@users.sourceforge.net>
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* lib/msvcrt/Makefile (OBJECTS_EXCEPT): Add except/seh.o; Remove
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@ -1,13 +1,13 @@
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/* $Id: seh.s,v 1.1 2002/10/26 00:32:17 chorns Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS MSVCRT Runtime Library
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* PURPOSE: Runtime library exception support for IA-32
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* FILE: lib/msvcrt/except/seh.s
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* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* NOTES: This file is shared with ntoskrnl/rtl/i386/seh.s.
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* Please keep them in sync.
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*/
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/* $Id: seh.s,v 1.2 2002/10/26 07:32:08 chorns Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS MSVCRT Runtime Library
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* PURPOSE: Runtime library exception support for IA-32
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* FILE: lib/msvcrt/except/seh.s
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* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* NOTES: This file is shared with ntoskrnl/rtl/i386/seh.s.
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* Please keep them in sync.
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*/
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#define ExceptionContinueExecution 0
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#define ExceptionContinueSearch 1
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@ -49,11 +49,11 @@
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#define ST_TRYLEVEL 0x00
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#define ST_FILTER 0x04
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#define ST_HANDLER 0x08
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#define CONTEXT_EDI 0x9C
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#define CONTEXT_EBX 0xA4
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#define CONTEXT_EIP 0xB8
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.globl __local_unwind2
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.globl __except_handler3
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@ -67,12 +67,12 @@ _do_debug:
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#define LU2_TRYLEVEL 0x08
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#define LU2_REGFRAME 0x04
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//
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// void
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// _local_unwind2(PEXCEPTION_REGISTRATION RegistrationFrame,
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// LONG TryLevel)
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//
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//
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// void
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// _local_unwind2(PEXCEPTION_REGISTRATION RegistrationFrame,
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// LONG TryLevel)
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//
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// Parameters:
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// [EDX+08h] - PEXCEPTION_REGISTRATION RegistrationFrame
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// [EDX+04h] - LONG TryLevel
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@ -1,17 +1,17 @@
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/* $Id: except.s,v 1.1 2002/10/26 00:32:18 chorns Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: User-mode exception support for IA-32
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* FILE: lib/ntdll/rtl/i386/except.s
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* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* NOTES: This file is shared with ntoskrnl/rtl/i386/except.s.
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* Please keep them in sync.
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*/
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#define EXCEPTION_UNWINDING 0x02
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/* $Id: except.s,v 1.2 2002/10/26 07:32:08 chorns Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: User-mode exception support for IA-32
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* FILE: lib/ntdll/rtl/i386/except.s
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* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* NOTES: This file is shared with ntoskrnl/rtl/i386/except.s.
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* Please keep them in sync.
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*/
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#define EREC_FLAGS 0x04
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#define EXCEPTION_UNWINDING 0x02
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#define EREC_FLAGS 0x04
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#define ExceptionContinueExecution 0
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#define ExceptionContinueSearch 1
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@ -125,9 +125,9 @@ _RtlpCaptureContext:
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#define REH_ERECORD 0x08
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#define REH_RFRAME 0x0C
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#define REH_CONTEXT 0x10
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#define REH_DCONTEXT 0x14
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#define REH_EROUTINE 0x18
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#define REH_CONTEXT 0x10
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#define REH_DCONTEXT 0x14
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#define REH_EROUTINE 0x18
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// Parameters:
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// None
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@ -141,8 +141,8 @@ _RtlpCaptureContext:
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// Returns:
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// EXCEPTION_DISPOSITION
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// Notes:
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// Setup the protecting exception handler and call the exception
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// handler in the right context.
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// Setup the protecting exception handler and call the exception
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// handler in the right context.
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_RtlpExecuteHandler:
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pushl %ebp
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movl %esp, %ebp
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@ -161,21 +161,21 @@ _RtlpExecuteHandler:
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// Now call the exception handler
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movl REH_EROUTINE(%ebp), %eax
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call *%eax
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cmpl $-1, %fs:0x0
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jne .reh_stack_looks_ok
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// This should not happen
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pushl 0
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pushl 0
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pushl 0
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pushl 0
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call _RtlAssert@16
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.reh_loop:
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jmp .reh_loop
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.reh_stack_looks_ok:
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cmpl $-1, %fs:0x0
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jne .reh_stack_looks_ok
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// This should not happen
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pushl 0
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pushl 0
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pushl 0
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pushl 0
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call _RtlAssert@16
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.reh_loop:
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jmp .reh_loop
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.reh_stack_looks_ok:
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movl %fs:0x0, %esp
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// Return to the 'front-end' for this function
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@ -201,18 +201,19 @@ _RtlpExecuteHandler:
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// EXCEPTION_DISPOSITION
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// Notes:
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// This exception handler protects the exception handling
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// mechanism by detecting nested exceptions.
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// mechanism by detecting nested exceptions.
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_RtlpExceptionProtector:
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movl $ExceptionContinueSearch, %eax
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movl REP_ERECORD(%esp), %ecx
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movl REP_ERECORD(%esp), %ecx
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testl $EXCEPTION_UNWINDING, EREC_FLAGS(%ecx)
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jnz .rep_end
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// Unwinding is not taking place, so return ExceptionNestedException
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// Set DispatcherContext field to the exception registration for the
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// exception handler that executed when a nested exception occurred
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movl REP_DCONTEXT(%esp), %ecx
movl REP_RFRAME(%esp), %eax
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// Set DispatcherContext field to the exception registration for the
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// exception handler that executed when a nested exception occurred
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movl REP_DCONTEXT(%esp), %ecx
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movl REP_RFRAME(%esp), %eax
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movl %eax, (%ecx)
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movl $ExceptionNestedException, %eax
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@ -273,8 +274,8 @@ _RtlpUnwindProtector:
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.rup_end:
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ret
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// Parameters:
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// [ESP+04h] - PEXCEPTION_RECORD ExceptionRecord
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// [ESP+08h] - PEXCEPTION_REGISTRATION RegistrationFrame
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@ -1,433 +1,433 @@
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/* $Id: exception.c,v 1.1 2002/10/26 00:32:18 chorns Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: User-mode exception support for IA-32
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* FILE: lib/ntdll/rtl/i386/exception.c
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* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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*/
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/* INCLUDES *****************************************************************/
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#include <ddk/ntddk.h>
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#include <windows.h>
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#include <string.h>
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ***************************************************************/
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/* Implemented in except.s */
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/* $Id: exception.c,v 1.2 2002/10/26 07:32:08 chorns Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: User-mode exception support for IA-32
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* FILE: lib/ntdll/rtl/i386/exception.c
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* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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*/
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/* INCLUDES *****************************************************************/
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#include <ddk/ntddk.h>
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#include <windows.h>
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#include <string.h>
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ***************************************************************/
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/* Implemented in except.s */
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VOID
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RtlpCaptureContext(PCONTEXT pContext);
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/* Macros that will help streamline the SEH implementations for
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kernel mode and user mode */
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#define SehpGetStackLimits(StackBase, StackLimit) \
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{ \
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(*(StackBase)) = NtCurrentTeb()->Tib->StackBase; \
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(*(StackLimit)) = NtCurrentTeb()->Tib->StackLimit; \
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}
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#define SehpGetExceptionList() \
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(PEXCEPTION_REGISTRATION)(NtCurrentTeb()->Tib.ExceptionList)
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#define SehpSetExceptionList(NewExceptionList) \
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NtCurrentTeb()->Tib.ExceptionList = (PVOID)(NewExceptionList)
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/* Macros that will help streamline the SEH implementations for
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kernel mode and user mode */
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#define SehpGetStackLimits(StackBase, StackLimit) \
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{ \
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(*(StackBase)) = NtCurrentTeb()->Tib->StackBase; \
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(*(StackLimit)) = NtCurrentTeb()->Tib->StackLimit; \
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}
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#define SehpGetExceptionList() \
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(PEXCEPTION_REGISTRATION)(NtCurrentTeb()->Tib.ExceptionList)
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#define SehpSetExceptionList(NewExceptionList) \
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NtCurrentTeb()->Tib.ExceptionList = (PVOID)(NewExceptionList)
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#define SehpCaptureContext(Context) \
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{ \
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RtlpCaptureContext(Context); \
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}
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/*** Code below this line is shared with ntoskrnl/rtl/i386/exception.c - please keep in sync ***/
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VOID STDCALL
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AsmDebug(ULONG Value)
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{
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DbgPrint("Value 0x%.08x\n", Value);
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}
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/* Declare a few prototypes for the functions in except.s */
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EXCEPTION_DISPOSITION
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RtlpExecuteHandlerForException(
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PEXCEPTION_RECORD ExceptionRecord,
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PEXCEPTION_REGISTRATION RegistrationFrame,
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PCONTEXT Context,
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PVOID DispatcherContext,
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PEXCEPTION_HANDLER ExceptionHandler);
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EXCEPTION_DISPOSITION
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RtlpExecuteHandlerForUnwind(
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PEXCEPTION_RECORD ExceptionRecord,
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PEXCEPTION_REGISTRATION RegistrationFrame,
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PCONTEXT Context,
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PVOID DispatcherContext,
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PEXCEPTION_HANDLER ExceptionHandler);
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#ifndef NDEBUG
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VOID RtlpDumpExceptionRegistrations(VOID)
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{
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PEXCEPTION_REGISTRATION Current;
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DbgPrint("Dumping exception registrations:\n");
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Current = SehpGetExceptionList();
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if ((ULONG_PTR)Current != -1)
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{
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while ((ULONG_PTR)Current != -1)
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{
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DbgPrint(" (0x%08X) HANDLER (0x%08X)\n", Current, Current->handler);
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Current = Current->prev;
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}
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DbgPrint(" End-Of-List\n");
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} else {
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DbgPrint(" No exception registrations exists.\n");
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}
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}
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#endif /* NDEBUG */
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ULONG
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RtlpDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
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IN PCONTEXT Context)
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{
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PEXCEPTION_REGISTRATION RegistrationFrame;
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DWORD DispatcherContext;
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DWORD ReturnValue;
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DPRINT("RtlpDispatchException()\n");
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#ifndef NDEBUG
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RtlpDumpExceptionRegistrations();
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#endif /* NDEBUG */
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RegistrationFrame = SehpGetExceptionList();
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DPRINT("RegistrationFrame is 0x%X\n", RegistrationFrame);
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while ((ULONG_PTR)RegistrationFrame != -1)
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{
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EXCEPTION_RECORD ExceptionRecord2;
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DWORD Temp = 0;
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//PVOID RegistrationFrameEnd = (PVOID)RegistrationFrame + 8;
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// Make sure the registration frame is located within the stack
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DPRINT("Error checking\n");
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#if 0
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if (Teb->Tib.StackBase > RegistrationFrameEnd)
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{
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DPRINT("Teb->Tib.StackBase (0x%.08x) > RegistrationFrameEnd (0x%.08x)\n",
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Teb->Tib.StackBase, RegistrationFrameEnd);
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ExceptionRecord->ExceptionFlags |= EXCEPTION_STACK_INVALID;
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return ExceptionContinueExecution;
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}
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// FIXME: Stack top, correct?
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if (Teb->Tib.StackLimit < RegistrationFrameEnd)
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{
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DPRINT("Teb->Tib.StackLimit (0x%.08x) > RegistrationFrameEnd (0x%.08x)\n",
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Teb->Tib.StackLimit, RegistrationFrameEnd);
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ExceptionRecord->ExceptionFlags |= EXCEPTION_STACK_INVALID;
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return ExceptionContinueExecution;
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}
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// Make sure stack is DWORD aligned
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if ((ULONG_PTR)RegistrationFrame & 3)
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{
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DPRINT("RegistrationFrameEnd (0x%.08x) is not DWORD aligned.\n",
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RegistrationFrameEnd);
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ExceptionRecord->ExceptionFlags |= EXCEPTION_STACK_INVALID;
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return ExceptionContinueExecution;
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}
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#endif
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#if 0
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/* FIXME: */
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if (someFlag)
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RtlpLogLastExceptionDisposition( hLog, retValue );
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#endif
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DPRINT("Calling handler at 0x%X\n", RegistrationFrame->handler);
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DPRINT("ExceptionRecord 0x%X\n", ExceptionRecord);
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DPRINT("RegistrationFrame 0x%X\n", RegistrationFrame);
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DPRINT("Context 0x%X\n", Context);
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DPRINT("&DispatcherContext 0x%X\n", &DispatcherContext);
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|
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ReturnValue = RtlpExecuteHandlerForException(
|
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ExceptionRecord,
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RegistrationFrame,
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Context,
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&DispatcherContext,
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RegistrationFrame->handler);
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DPRINT("Exception handler said 0x%X\n", ReturnValue);
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DPRINT("RegistrationFrame == 0x%.08x\n", RegistrationFrame);
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{
|
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PULONG sp = (PULONG)((PVOID)RegistrationFrame - 0x08);
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DPRINT("StandardESP == 0x%.08x\n", sp[0]);
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DPRINT("Exception Pointers == 0x%.08x\n", sp[1]);
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DPRINT("PrevFrame == 0x%.08x\n", sp[2]);
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DPRINT("Handler == 0x%.08x\n", sp[3]);
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DPRINT("ScopeTable == 0x%.08x\n", sp[4]);
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DPRINT("TryLevel == 0x%.08x\n", sp[5]);
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DPRINT("EBP == 0x%.08x\n", sp[6]);
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}
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|
||||
if (RegistrationFrame == NULL)
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{
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ExceptionRecord->ExceptionFlags &= ~EXCEPTION_NESTED_CALL; // Turn off flag
|
||||
}
|
||||
|
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if (ReturnValue == ExceptionContinueExecution)
|
||||
{
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DPRINT("ReturnValue == ExceptionContinueExecution\n");
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if (ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE)
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||||
{
|
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DPRINT("(ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE) == TRUE\n");
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|
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ExceptionRecord2.ExceptionRecord = ExceptionRecord;
|
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ExceptionRecord2.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
|
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ExceptionRecord2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
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ExceptionRecord2.NumberParameters = 0;
|
||||
RtlRaiseException(&ExceptionRecord2);
|
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}
|
||||
else
|
||||
{
|
||||
/* Copy the (possibly changed) context back to the trap frame and return */
|
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NtContinue(Context, FALSE);
|
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return ExceptionContinueExecution;
|
||||
}
|
||||
}
|
||||
else if (ReturnValue == ExceptionContinueSearch)
|
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{
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DPRINT("ReturnValue == ExceptionContinueSearch\n");
|
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|
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/* Nothing to do here */
|
||||
}
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else if (ReturnValue == ExceptionNestedException)
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{
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DPRINT("ReturnValue == ExceptionNestedException\n");
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|
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ExceptionRecord->ExceptionFlags |= EXCEPTION_EXIT_UNWIND;
|
||||
if (DispatcherContext > Temp)
|
||||
{
|
||||
Temp = DispatcherContext;
|
||||
}
|
||||
}
|
||||
else /* if (ReturnValue == ExceptionCollidedUnwind) */
|
||||
{
|
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DPRINT("ReturnValue == ExceptionCollidedUnwind or unknown\n");
|
||||
|
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ExceptionRecord2.ExceptionRecord = ExceptionRecord;
|
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ExceptionRecord2.ExceptionCode = STATUS_INVALID_DISPOSITION;
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ExceptionRecord2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
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ExceptionRecord2.NumberParameters = 0;
|
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RtlRaiseException(&ExceptionRecord2);
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}
|
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|
||||
RegistrationFrame = RegistrationFrame->prev; // Go to previous frame
|
||||
}
|
||||
|
||||
/* No exception handler will handle this exception */
|
||||
|
||||
DPRINT("RtlpDispatchException(): Return ExceptionContinueExecution\n");
|
||||
|
||||
return ExceptionContinueExecution;
|
||||
}
|
||||
|
||||
VOID STDCALL
|
||||
RtlRaiseStatus(NTSTATUS Status)
|
||||
{
|
||||
EXCEPTION_RECORD ExceptionRecord;
|
||||
|
||||
DPRINT("RtlRaiseStatus(Status 0x%.08x)\n", Status);
|
||||
|
||||
ExceptionRecord.ExceptionCode = Status;
|
||||
ExceptionRecord.ExceptionRecord = NULL;
|
||||
ExceptionRecord.NumberParameters = 0;
|
||||
ExceptionRecord.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
RtlRaiseException (& ExceptionRecord);
|
||||
}
|
||||
|
||||
VOID STDCALL
|
||||
RtlUnwind(PEXCEPTION_REGISTRATION RegistrationFrame,
|
||||
PVOID ReturnAddress,
|
||||
PEXCEPTION_RECORD ExceptionRecord,
|
||||
DWORD EaxValue)
|
||||
{
|
||||
PEXCEPTION_REGISTRATION ERHead;
|
||||
PEXCEPTION_RECORD pExceptRec;
|
||||
EXCEPTION_RECORD TempER;
|
||||
CONTEXT Context;
|
||||
|
||||
DPRINT("RtlUnwind(). RegistrationFrame 0x%X\n", RegistrationFrame);
|
||||
|
||||
#ifndef NDEBUG
|
||||
RtlpDumpExceptionRegistrations();
|
||||
#endif /* NDEBUG */
|
||||
|
||||
ERHead = SehpGetExceptionList();
|
||||
|
||||
DPRINT("ERHead is 0x%X\n", ERHead);
|
||||
|
||||
if (ExceptionRecord == NULL) // The normal case
|
||||
{
|
||||
DPRINT("ExceptionRecord == NULL (normal)\n");
|
||||
|
||||
pExceptRec = &TempER;
|
||||
pExceptRec->ExceptionFlags = 0;
|
||||
pExceptRec->ExceptionCode = STATUS_UNWIND;
|
||||
pExceptRec->ExceptionRecord = NULL;
|
||||
pExceptRec->ExceptionAddress = ReturnAddress;
|
||||
pExceptRec->ExceptionInformation[0] = 0;
|
||||
}
|
||||
|
||||
if (RegistrationFrame)
|
||||
pExceptRec->ExceptionFlags |= EXCEPTION_UNWINDING;
|
||||
else
|
||||
pExceptRec->ExceptionFlags |= (EXCEPTION_UNWINDING|EXCEPTION_EXIT_UNWIND);
|
||||
|
||||
#ifndef NDEBUG
|
||||
DPRINT("ExceptionFlags == 0x%x:\n", pExceptRec->ExceptionFlags);
|
||||
if (pExceptRec->ExceptionFlags & EXCEPTION_UNWINDING)
|
||||
{
|
||||
DPRINT(" * EXCEPTION_UNWINDING (0x%x)\n", EXCEPTION_UNWINDING);
|
||||
}
|
||||
if (pExceptRec->ExceptionFlags & EXCEPTION_EXIT_UNWIND)
|
||||
{
|
||||
DPRINT(" * EXCEPTION_EXIT_UNWIND (0x%x)\n", EXCEPTION_EXIT_UNWIND);
|
||||
}
|
||||
#endif /* NDEBUG */
|
||||
|
||||
Context.ContextFlags =
|
||||
(CONTEXT_i386 | CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS);
|
||||
|
||||
SehpCaptureContext(&Context);
|
||||
|
||||
DPRINT("Context.Eip = 0x%.08x\n", Context.Eip);
|
||||
DPRINT("Context.Ebp = 0x%.08x\n", Context.Ebp);
|
||||
DPRINT("Context.Esp = 0x%.08x\n", Context.Esp);
|
||||
|
||||
Context.Esp += 0x10;
|
||||
Context.Eax = EaxValue;
|
||||
|
||||
// Begin traversing the list of EXCEPTION_REGISTRATION
|
||||
while ((ULONG_PTR)ERHead != -1)
|
||||
{
|
||||
EXCEPTION_RECORD er2;
|
||||
|
||||
DPRINT("ERHead 0x%X\n", ERHead);
|
||||
|
||||
if (ERHead == RegistrationFrame)
|
||||
{
|
||||
DPRINT("Continueing execution\n");
|
||||
NtContinue(&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");
|
||||
|
||||
// Generate an exception to bail out
|
||||
er2.ExceptionRecord = pExceptRec;
|
||||
er2.NumberParameters = 0;
|
||||
er2.ExceptionCode = STATUS_INVALID_UNWIND_TARGET;
|
||||
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
|
||||
RtlRaiseException(&er2);
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
Stack = ERHead + sizeof(EXCEPTION_REGISTRATION);
|
||||
if ( (Teb->Tib.StackBase <= (PVOID)ERHead ) // Make sure that ERHead
|
||||
&& (Teb->Tib.->StackLimit >= (PVOID)Stack ) // is in range, and a multiple
|
||||
&& (0 == ((ULONG_PTR)ERHead & 3)) ) // of 4 (i.e., sane)
|
||||
{
|
||||
#else
|
||||
if (1) {
|
||||
#endif
|
||||
PEXCEPTION_REGISTRATION NewERHead;
|
||||
PEXCEPTION_REGISTRATION pCurrExceptReg;
|
||||
EXCEPTION_DISPOSITION ReturnValue;
|
||||
|
||||
DPRINT("Executing handler at 0x%X for unwind\n", ERHead->handler);
|
||||
|
||||
ReturnValue = RtlpExecuteHandlerForUnwind(
|
||||
pExceptRec,
|
||||
ERHead,
|
||||
&Context,
|
||||
&NewERHead,
|
||||
ERHead->handler);
|
||||
|
||||
DPRINT("Handler at 0x%X returned 0x%X\n", ERHead->handler, ReturnValue);
|
||||
|
||||
if (ReturnValue != ExceptionContinueSearch)
|
||||
{
|
||||
if (ReturnValue != ExceptionCollidedUnwind)
|
||||
{
|
||||
DPRINT("Bad return value\n");
|
||||
|
||||
er2.ExceptionRecord = pExceptRec;
|
||||
er2.NumberParameters = 0;
|
||||
er2.ExceptionCode = STATUS_INVALID_DISPOSITION;
|
||||
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
|
||||
RtlRaiseException(&er2);
|
||||
}
|
||||
else
|
||||
{
|
||||
ERHead = NewERHead;
|
||||
}
|
||||
}
|
||||
|
||||
pCurrExceptReg = ERHead;
|
||||
ERHead = ERHead->prev;
|
||||
|
||||
DPRINT("New ERHead is 0x%X\n", ERHead);
|
||||
|
||||
DPRINT("Setting exception registration at 0x%X as current\n",
|
||||
RegistrationFrame->prev);
|
||||
|
||||
// Unlink the exception handler
|
||||
SehpSetExceptionList(RegistrationFrame->prev);
|
||||
}
|
||||
else // The stack looks goofy! Raise an exception to bail out
|
||||
{
|
||||
DPRINT("Bad stack\n");
|
||||
|
||||
er2.ExceptionRecord = pExceptRec;
|
||||
er2.NumberParameters = 0;
|
||||
er2.ExceptionCode = STATUS_BAD_STACK;
|
||||
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
|
||||
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)
|
||||
NtContinue(&Context, FALSE);
|
||||
else
|
||||
NtRaiseException(pExceptRec, &Context, 0);
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
||||
/*** Code below this line is shared with ntoskrnl/rtl/i386/exception.c - please keep in sync ***/
|
||||
|
||||
VOID STDCALL
|
||||
AsmDebug(ULONG Value)
|
||||
{
|
||||
DbgPrint("Value 0x%.08x\n", Value);
|
||||
}
|
||||
|
||||
|
||||
/* Declare a few prototypes for the functions in except.s */
|
||||
|
||||
EXCEPTION_DISPOSITION
|
||||
RtlpExecuteHandlerForException(
|
||||
PEXCEPTION_RECORD ExceptionRecord,
|
||||
PEXCEPTION_REGISTRATION RegistrationFrame,
|
||||
PCONTEXT Context,
|
||||
PVOID DispatcherContext,
|
||||
PEXCEPTION_HANDLER ExceptionHandler);
|
||||
|
||||
EXCEPTION_DISPOSITION
|
||||
RtlpExecuteHandlerForUnwind(
|
||||
PEXCEPTION_RECORD ExceptionRecord,
|
||||
PEXCEPTION_REGISTRATION RegistrationFrame,
|
||||
PCONTEXT Context,
|
||||
PVOID DispatcherContext,
|
||||
PEXCEPTION_HANDLER ExceptionHandler);
|
||||
|
||||
|
||||
#ifndef NDEBUG
|
||||
|
||||
VOID RtlpDumpExceptionRegistrations(VOID)
|
||||
{
|
||||
PEXCEPTION_REGISTRATION Current;
|
||||
|
||||
DbgPrint("Dumping exception registrations:\n");
|
||||
|
||||
Current = SehpGetExceptionList();
|
||||
|
||||
if ((ULONG_PTR)Current != -1)
|
||||
{
|
||||
while ((ULONG_PTR)Current != -1)
|
||||
{
|
||||
DbgPrint(" (0x%08X) HANDLER (0x%08X)\n", Current, Current->handler);
|
||||
Current = Current->prev;
|
||||
}
|
||||
DbgPrint(" End-Of-List\n");
|
||||
} else {
|
||||
DbgPrint(" No exception registrations exists.\n");
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* NDEBUG */
|
||||
|
||||
ULONG
|
||||
RtlpDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
|
||||
IN PCONTEXT Context)
|
||||
{
|
||||
PEXCEPTION_REGISTRATION RegistrationFrame;
|
||||
DWORD DispatcherContext;
|
||||
DWORD ReturnValue;
|
||||
|
||||
DPRINT("RtlpDispatchException()\n");
|
||||
|
||||
#ifndef NDEBUG
|
||||
RtlpDumpExceptionRegistrations();
|
||||
#endif /* NDEBUG */
|
||||
|
||||
RegistrationFrame = SehpGetExceptionList();
|
||||
|
||||
DPRINT("RegistrationFrame is 0x%X\n", RegistrationFrame);
|
||||
|
||||
while ((ULONG_PTR)RegistrationFrame != -1)
|
||||
{
|
||||
EXCEPTION_RECORD ExceptionRecord2;
|
||||
DWORD Temp = 0;
|
||||
//PVOID RegistrationFrameEnd = (PVOID)RegistrationFrame + 8;
|
||||
|
||||
// Make sure the registration frame is located within the stack
|
||||
|
||||
DPRINT("Error checking\n");
|
||||
#if 0
|
||||
if (Teb->Tib.StackBase > RegistrationFrameEnd)
|
||||
{
|
||||
DPRINT("Teb->Tib.StackBase (0x%.08x) > RegistrationFrameEnd (0x%.08x)\n",
|
||||
Teb->Tib.StackBase, RegistrationFrameEnd);
|
||||
ExceptionRecord->ExceptionFlags |= EXCEPTION_STACK_INVALID;
|
||||
return ExceptionContinueExecution;
|
||||
}
|
||||
// FIXME: Stack top, correct?
|
||||
if (Teb->Tib.StackLimit < RegistrationFrameEnd)
|
||||
{
|
||||
DPRINT("Teb->Tib.StackLimit (0x%.08x) > RegistrationFrameEnd (0x%.08x)\n",
|
||||
Teb->Tib.StackLimit, RegistrationFrameEnd);
|
||||
ExceptionRecord->ExceptionFlags |= EXCEPTION_STACK_INVALID;
|
||||
return ExceptionContinueExecution;
|
||||
}
|
||||
|
||||
// Make sure stack is DWORD aligned
|
||||
if ((ULONG_PTR)RegistrationFrame & 3)
|
||||
{
|
||||
DPRINT("RegistrationFrameEnd (0x%.08x) is not DWORD aligned.\n",
|
||||
RegistrationFrameEnd);
|
||||
ExceptionRecord->ExceptionFlags |= EXCEPTION_STACK_INVALID;
|
||||
return ExceptionContinueExecution;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
/* FIXME: */
|
||||
if (someFlag)
|
||||
RtlpLogLastExceptionDisposition( hLog, retValue );
|
||||
#endif
|
||||
|
||||
DPRINT("Calling handler at 0x%X\n", RegistrationFrame->handler);
|
||||
DPRINT("ExceptionRecord 0x%X\n", ExceptionRecord);
|
||||
DPRINT("RegistrationFrame 0x%X\n", RegistrationFrame);
|
||||
DPRINT("Context 0x%X\n", Context);
|
||||
DPRINT("&DispatcherContext 0x%X\n", &DispatcherContext);
|
||||
|
||||
ReturnValue = RtlpExecuteHandlerForException(
|
||||
ExceptionRecord,
|
||||
RegistrationFrame,
|
||||
Context,
|
||||
&DispatcherContext,
|
||||
RegistrationFrame->handler);
|
||||
|
||||
DPRINT("Exception handler said 0x%X\n", ReturnValue);
|
||||
DPRINT("RegistrationFrame == 0x%.08x\n", RegistrationFrame);
|
||||
{
|
||||
PULONG sp = (PULONG)((PVOID)RegistrationFrame - 0x08);
|
||||
DPRINT("StandardESP == 0x%.08x\n", sp[0]);
|
||||
DPRINT("Exception Pointers == 0x%.08x\n", sp[1]);
|
||||
DPRINT("PrevFrame == 0x%.08x\n", sp[2]);
|
||||
DPRINT("Handler == 0x%.08x\n", sp[3]);
|
||||
DPRINT("ScopeTable == 0x%.08x\n", sp[4]);
|
||||
DPRINT("TryLevel == 0x%.08x\n", sp[5]);
|
||||
DPRINT("EBP == 0x%.08x\n", sp[6]);
|
||||
}
|
||||
|
||||
if (RegistrationFrame == NULL)
|
||||
{
|
||||
ExceptionRecord->ExceptionFlags &= ~EXCEPTION_NESTED_CALL; // Turn off flag
|
||||
}
|
||||
|
||||
if (ReturnValue == ExceptionContinueExecution)
|
||||
{
|
||||
DPRINT("ReturnValue == ExceptionContinueExecution\n");
|
||||
if (ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE)
|
||||
{
|
||||
DPRINT("(ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE) == TRUE\n");
|
||||
|
||||
ExceptionRecord2.ExceptionRecord = ExceptionRecord;
|
||||
ExceptionRecord2.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
|
||||
ExceptionRecord2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
ExceptionRecord2.NumberParameters = 0;
|
||||
RtlRaiseException(&ExceptionRecord2);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Copy the (possibly changed) context back to the trap frame and return */
|
||||
NtContinue(Context, FALSE);
|
||||
return ExceptionContinueExecution;
|
||||
}
|
||||
}
|
||||
else if (ReturnValue == ExceptionContinueSearch)
|
||||
{
|
||||
DPRINT("ReturnValue == ExceptionContinueSearch\n");
|
||||
|
||||
/* Nothing to do here */
|
||||
}
|
||||
else if (ReturnValue == ExceptionNestedException)
|
||||
{
|
||||
DPRINT("ReturnValue == ExceptionNestedException\n");
|
||||
|
||||
ExceptionRecord->ExceptionFlags |= EXCEPTION_EXIT_UNWIND;
|
||||
if (DispatcherContext > Temp)
|
||||
{
|
||||
Temp = DispatcherContext;
|
||||
}
|
||||
}
|
||||
else /* if (ReturnValue == ExceptionCollidedUnwind) */
|
||||
{
|
||||
DPRINT("ReturnValue == ExceptionCollidedUnwind or unknown\n");
|
||||
|
||||
ExceptionRecord2.ExceptionRecord = ExceptionRecord;
|
||||
ExceptionRecord2.ExceptionCode = STATUS_INVALID_DISPOSITION;
|
||||
ExceptionRecord2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
ExceptionRecord2.NumberParameters = 0;
|
||||
RtlRaiseException(&ExceptionRecord2);
|
||||
}
|
||||
|
||||
RegistrationFrame = RegistrationFrame->prev; // Go to previous frame
|
||||
}
|
||||
|
||||
/* No exception handler will handle this exception */
|
||||
|
||||
DPRINT("RtlpDispatchException(): Return ExceptionContinueExecution\n");
|
||||
|
||||
return ExceptionContinueExecution;
|
||||
}
|
||||
|
||||
VOID STDCALL
|
||||
RtlRaiseStatus(NTSTATUS Status)
|
||||
{
|
||||
EXCEPTION_RECORD ExceptionRecord;
|
||||
|
||||
DPRINT("RtlRaiseStatus(Status 0x%.08x)\n", Status);
|
||||
|
||||
ExceptionRecord.ExceptionCode = Status;
|
||||
ExceptionRecord.ExceptionRecord = NULL;
|
||||
ExceptionRecord.NumberParameters = 0;
|
||||
ExceptionRecord.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
RtlRaiseException (& ExceptionRecord);
|
||||
}
|
||||
|
||||
VOID STDCALL
|
||||
RtlUnwind(PEXCEPTION_REGISTRATION RegistrationFrame,
|
||||
PVOID ReturnAddress,
|
||||
PEXCEPTION_RECORD ExceptionRecord,
|
||||
DWORD EaxValue)
|
||||
{
|
||||
PEXCEPTION_REGISTRATION ERHead;
|
||||
PEXCEPTION_RECORD pExceptRec;
|
||||
EXCEPTION_RECORD TempER;
|
||||
CONTEXT Context;
|
||||
|
||||
DPRINT("RtlUnwind(). RegistrationFrame 0x%X\n", RegistrationFrame);
|
||||
|
||||
#ifndef NDEBUG
|
||||
RtlpDumpExceptionRegistrations();
|
||||
#endif /* NDEBUG */
|
||||
|
||||
ERHead = SehpGetExceptionList();
|
||||
|
||||
DPRINT("ERHead is 0x%X\n", ERHead);
|
||||
|
||||
if (ExceptionRecord == NULL) // The normal case
|
||||
{
|
||||
DPRINT("ExceptionRecord == NULL (normal)\n");
|
||||
|
||||
pExceptRec = &TempER;
|
||||
pExceptRec->ExceptionFlags = 0;
|
||||
pExceptRec->ExceptionCode = STATUS_UNWIND;
|
||||
pExceptRec->ExceptionRecord = NULL;
|
||||
pExceptRec->ExceptionAddress = ReturnAddress;
|
||||
pExceptRec->ExceptionInformation[0] = 0;
|
||||
}
|
||||
|
||||
if (RegistrationFrame)
|
||||
pExceptRec->ExceptionFlags |= EXCEPTION_UNWINDING;
|
||||
else
|
||||
pExceptRec->ExceptionFlags |= (EXCEPTION_UNWINDING|EXCEPTION_EXIT_UNWIND);
|
||||
|
||||
#ifndef NDEBUG
|
||||
DPRINT("ExceptionFlags == 0x%x:\n", pExceptRec->ExceptionFlags);
|
||||
if (pExceptRec->ExceptionFlags & EXCEPTION_UNWINDING)
|
||||
{
|
||||
DPRINT(" * EXCEPTION_UNWINDING (0x%x)\n", EXCEPTION_UNWINDING);
|
||||
}
|
||||
if (pExceptRec->ExceptionFlags & EXCEPTION_EXIT_UNWIND)
|
||||
{
|
||||
DPRINT(" * EXCEPTION_EXIT_UNWIND (0x%x)\n", EXCEPTION_EXIT_UNWIND);
|
||||
}
|
||||
#endif /* NDEBUG */
|
||||
|
||||
Context.ContextFlags =
|
||||
(CONTEXT_i386 | CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS);
|
||||
|
||||
SehpCaptureContext(&Context);
|
||||
|
||||
DPRINT("Context.Eip = 0x%.08x\n", Context.Eip);
|
||||
DPRINT("Context.Ebp = 0x%.08x\n", Context.Ebp);
|
||||
DPRINT("Context.Esp = 0x%.08x\n", Context.Esp);
|
||||
|
||||
Context.Esp += 0x10;
|
||||
Context.Eax = EaxValue;
|
||||
|
||||
// Begin traversing the list of EXCEPTION_REGISTRATION
|
||||
while ((ULONG_PTR)ERHead != -1)
|
||||
{
|
||||
EXCEPTION_RECORD er2;
|
||||
|
||||
DPRINT("ERHead 0x%X\n", ERHead);
|
||||
|
||||
if (ERHead == RegistrationFrame)
|
||||
{
|
||||
DPRINT("Continueing execution\n");
|
||||
NtContinue(&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");
|
||||
|
||||
// Generate an exception to bail out
|
||||
er2.ExceptionRecord = pExceptRec;
|
||||
er2.NumberParameters = 0;
|
||||
er2.ExceptionCode = STATUS_INVALID_UNWIND_TARGET;
|
||||
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
|
||||
RtlRaiseException(&er2);
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
Stack = ERHead + sizeof(EXCEPTION_REGISTRATION);
|
||||
if ( (Teb->Tib.StackBase <= (PVOID)ERHead ) // Make sure that ERHead
|
||||
&& (Teb->Tib.->StackLimit >= (PVOID)Stack ) // is in range, and a multiple
|
||||
&& (0 == ((ULONG_PTR)ERHead & 3)) ) // of 4 (i.e., sane)
|
||||
{
|
||||
#else
|
||||
if (1) {
|
||||
#endif
|
||||
PEXCEPTION_REGISTRATION NewERHead;
|
||||
PEXCEPTION_REGISTRATION pCurrExceptReg;
|
||||
EXCEPTION_DISPOSITION ReturnValue;
|
||||
|
||||
DPRINT("Executing handler at 0x%X for unwind\n", ERHead->handler);
|
||||
|
||||
ReturnValue = RtlpExecuteHandlerForUnwind(
|
||||
pExceptRec,
|
||||
ERHead,
|
||||
&Context,
|
||||
&NewERHead,
|
||||
ERHead->handler);
|
||||
|
||||
DPRINT("Handler at 0x%X returned 0x%X\n", ERHead->handler, ReturnValue);
|
||||
|
||||
if (ReturnValue != ExceptionContinueSearch)
|
||||
{
|
||||
if (ReturnValue != ExceptionCollidedUnwind)
|
||||
{
|
||||
DPRINT("Bad return value\n");
|
||||
|
||||
er2.ExceptionRecord = pExceptRec;
|
||||
er2.NumberParameters = 0;
|
||||
er2.ExceptionCode = STATUS_INVALID_DISPOSITION;
|
||||
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
|
||||
RtlRaiseException(&er2);
|
||||
}
|
||||
else
|
||||
{
|
||||
ERHead = NewERHead;
|
||||
}
|
||||
}
|
||||
|
||||
pCurrExceptReg = ERHead;
|
||||
ERHead = ERHead->prev;
|
||||
|
||||
DPRINT("New ERHead is 0x%X\n", ERHead);
|
||||
|
||||
DPRINT("Setting exception registration at 0x%X as current\n",
|
||||
RegistrationFrame->prev);
|
||||
|
||||
// Unlink the exception handler
|
||||
SehpSetExceptionList(RegistrationFrame->prev);
|
||||
}
|
||||
else // The stack looks goofy! Raise an exception to bail out
|
||||
{
|
||||
DPRINT("Bad stack\n");
|
||||
|
||||
er2.ExceptionRecord = pExceptRec;
|
||||
er2.NumberParameters = 0;
|
||||
er2.ExceptionCode = STATUS_BAD_STACK;
|
||||
er2.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
||||
|
||||
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)
|
||||
NtContinue(&Context, FALSE);
|
||||
else
|
||||
NtRaiseException(pExceptRec, &Context, 0);
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
|
|
@ -1,17 +1,17 @@
|
|||
/* $Id: except.s,v 1.1 2002/10/26 00:36:54 chorns Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
* PURPOSE: Kernel-mode exception support for IA-32
|
||||
* FILE: ntoskrnl/rtl/i386/except.s
|
||||
* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
|
||||
* NOTES: This file is shared with lib/ntdll/rtl/i386/except.s.
|
||||
* Please keep them in sync.
|
||||
*/
|
||||
|
||||
#define EXCEPTION_UNWINDING 0x02
|
||||
/* $Id: except.s,v 1.2 2002/10/26 07:32:08 chorns Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
* PURPOSE: Kernel-mode exception support for IA-32
|
||||
* FILE: ntoskrnl/rtl/i386/except.s
|
||||
* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
|
||||
* NOTES: This file is shared with lib/ntdll/rtl/i386/except.s.
|
||||
* Please keep them in sync.
|
||||
*/
|
||||
|
||||
#define EREC_FLAGS 0x04
|
||||
#define EXCEPTION_UNWINDING 0x02
|
||||
|
||||
#define EREC_FLAGS 0x04
|
||||
|
||||
#define ExceptionContinueExecution 0
|
||||
#define ExceptionContinueSearch 1
|
||||
|
|
@ -125,9 +125,9 @@ _RtlpCaptureContext:
|
|||
|
||||
#define REH_ERECORD 0x08
|
||||
#define REH_RFRAME 0x0C
|
||||
#define REH_CONTEXT 0x10
|
||||
#define REH_DCONTEXT 0x14
|
||||
#define REH_EROUTINE 0x18
|
||||
#define REH_CONTEXT 0x10
|
||||
#define REH_DCONTEXT 0x14
|
||||
#define REH_EROUTINE 0x18
|
||||
|
||||
// Parameters:
|
||||
// None
|
||||
|
|
@ -141,8 +141,8 @@ _RtlpCaptureContext:
|
|||
// Returns:
|
||||
// EXCEPTION_DISPOSITION
|
||||
// Notes:
|
||||
// Setup the protecting exception handler and call the exception
|
||||
// handler in the right context.
|
||||
// Setup the protecting exception handler and call the exception
|
||||
// handler in the right context.
|
||||
_RtlpExecuteHandler:
|
||||
pushl %ebp
|
||||
movl %esp, %ebp
|
||||
|
|
@ -161,21 +161,21 @@ _RtlpExecuteHandler:
|
|||
// Now call the exception handler
|
||||
movl REH_EROUTINE(%ebp), %eax
|
||||
call *%eax
|
||||
|
||||
cmpl $-1, %fs:0x0
|
||||
jne .reh_stack_looks_ok
|
||||
|
||||
// This should not happen
|
||||
pushl 0
|
||||
pushl 0
|
||||
pushl 0
|
||||
pushl 0
|
||||
call _RtlAssert@16
|
||||
|
||||
.reh_loop:
|
||||
jmp .reh_loop
|
||||
|
||||
.reh_stack_looks_ok:
|
||||
|
||||
cmpl $-1, %fs:0x0
|
||||
jne .reh_stack_looks_ok
|
||||
|
||||
// This should not happen
|
||||
pushl 0
|
||||
pushl 0
|
||||
pushl 0
|
||||
pushl 0
|
||||
call _RtlAssert@16
|
||||
|
||||
.reh_loop:
|
||||
jmp .reh_loop
|
||||
|
||||
.reh_stack_looks_ok:
|
||||
movl %fs:0x0, %esp
|
||||
|
||||
// Return to the 'front-end' for this function
|
||||
|
|
@ -201,18 +201,19 @@ _RtlpExecuteHandler:
|
|||
// EXCEPTION_DISPOSITION
|
||||
// Notes:
|
||||
// This exception handler protects the exception handling
|
||||
// mechanism by detecting nested exceptions.
|
||||
// mechanism by detecting nested exceptions.
|
||||
_RtlpExceptionProtector:
|
||||
movl $ExceptionContinueSearch, %eax
|
||||
movl REP_ERECORD(%esp), %ecx
|
||||
movl REP_ERECORD(%esp), %ecx
|
||||
testl $EXCEPTION_UNWINDING, EREC_FLAGS(%ecx)
|
||||
jnz .rep_end
|
||||
|
||||
// Unwinding is not taking place, so return ExceptionNestedException
|
||||
|
||||
// Set DispatcherContext field to the exception registration for the
|
||||
// exception handler that executed when a nested exception occurred
|
||||
movl REP_DCONTEXT(%esp), %ecx
movl REP_RFRAME(%esp), %eax
|
||||
|
||||
// Set DispatcherContext field to the exception registration for the
|
||||
// exception handler that executed when a nested exception occurred
|
||||
movl REP_DCONTEXT(%esp), %ecx
|
||||
movl REP_RFRAME(%esp), %eax
|
||||
movl %eax, (%ecx)
|
||||
movl $ExceptionNestedException, %eax
|
||||
|
||||
|
|
@ -273,8 +274,8 @@ _RtlpUnwindProtector:
|
|||
|
||||
.rup_end:
|
||||
ret
|
||||
|
||||
|
||||
|
||||
|
||||
// Parameters:
|
||||
// [ESP+04h] - PEXCEPTION_RECORD ExceptionRecord
|
||||
// [ESP+08h] - PEXCEPTION_REGISTRATION RegistrationFrame
|
||||
|
|
|
|||
|
|
@ -1,13 +1,13 @@
|
|||
/* $Id: seh.s,v 1.1 2002/10/26 00:38:01 chorns Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
* PURPOSE: Runtime library exception support for IA-32
|
||||
* FILE: ntoskrnl/rtl/i386/seh.s
|
||||
* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
|
||||
* NOTES: This file is shared with lib/msvcrt/except/seh.s.
|
||||
* Please keep them in sync.
|
||||
*/
|
||||
/* $Id: seh.s,v 1.2 2002/10/26 07:32:08 chorns Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
* PURPOSE: Runtime library exception support for IA-32
|
||||
* FILE: ntoskrnl/rtl/i386/seh.s
|
||||
* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
|
||||
* NOTES: This file is shared with lib/msvcrt/except/seh.s.
|
||||
* Please keep them in sync.
|
||||
*/
|
||||
|
||||
#define ExceptionContinueExecution 0
|
||||
#define ExceptionContinueSearch 1
|
||||
|
|
@ -49,11 +49,11 @@
|
|||
#define ST_TRYLEVEL 0x00
|
||||
#define ST_FILTER 0x04
|
||||
#define ST_HANDLER 0x08
|
||||
|
||||
|
||||
#define CONTEXT_EDI 0x9C
|
||||
#define CONTEXT_EBX 0xA4
|
||||
#define CONTEXT_EIP 0xB8
|
||||
|
||||
|
||||
.globl __local_unwind2
|
||||
.globl __except_handler3
|
||||
|
||||
|
|
@ -67,12 +67,12 @@ _do_debug:
|
|||
|
||||
#define LU2_TRYLEVEL 0x08
|
||||
#define LU2_REGFRAME 0x04
|
||||
|
||||
//
|
||||
// void
|
||||
// _local_unwind2(PEXCEPTION_REGISTRATION RegistrationFrame,
|
||||
// LONG TryLevel)
|
||||
//
|
||||
|
||||
//
|
||||
// void
|
||||
// _local_unwind2(PEXCEPTION_REGISTRATION RegistrationFrame,
|
||||
// LONG TryLevel)
|
||||
//
|
||||
// Parameters:
|
||||
// [EDX+08h] - PEXCEPTION_REGISTRATION RegistrationFrame
|
||||
// [EDX+04h] - LONG TryLevel
|
||||
|
|
|
|||
Loading…
Reference in a new issue