#include <assert.h>
#include <signal.h>
+#include <stdarg.h>
+#include "ntstatus.h"
#include "windef.h"
#include "winternl.h"
-#include "global.h"
#include "wine/exception.h"
-#include "stackframe.h"
-#include "miscemu.h"
#include "wine/server.h"
+#include "wine/list.h"
#include "wine/debug.h"
#include "excpt.h"
+#include "ntdll_misc.h"
WINE_DEFAULT_DEBUG_CHANNEL(seh);
/* Exception record for handling exceptions happening inside exception handlers */
typedef struct
{
- EXCEPTION_FRAME frame;
- EXCEPTION_FRAME *prevFrame;
+ EXCEPTION_REGISTRATION_RECORD frame;
+ EXCEPTION_REGISTRATION_RECORD *prevFrame;
} EXC_NESTED_FRAME;
+typedef struct
+{
+ struct list entry;
+ PVECTORED_EXCEPTION_HANDLER func;
+} VECTORED_HANDLER;
+
+static struct list vectored_handlers = LIST_INIT(vectored_handlers);
+
+static RTL_CRITICAL_SECTION vectored_handlers_section;
+static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
+{
+ 0, 0, &vectored_handlers_section,
+ { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
+ 0, 0, { 0, (DWORD)(__FILE__ ": vectored_handlers_section") }
+};
+static RTL_CRITICAL_SECTION vectored_handlers_section = { &critsect_debug, -1, 0, 0, 0, 0 };
+
#ifdef __i386__
# define GET_IP(context) ((LPVOID)(context)->Eip)
#elif defined(__sparc__)
# define GET_IP(context) ((LPVOID)(context)->pc)
#elif defined(__powerpc__)
# define GET_IP(context) ((LPVOID)(context)->Iar)
+#elif defined(__ALPHA__)
+# define GET_IP(context) ((LPVOID)(context)->Fir)
#else
# error You must define GET_IP for this CPU
#endif
-void WINAPI EXC_RtlRaiseException( PEXCEPTION_RECORD, PCONTEXT );
-void WINAPI EXC_RtlUnwind( PEXCEPTION_FRAME, LPVOID,
- PEXCEPTION_RECORD, DWORD, PCONTEXT );
-void WINAPI EXC_NtRaiseException( PEXCEPTION_RECORD, PCONTEXT,
- BOOL, PCONTEXT );
/*******************************************************************
* EXC_RaiseHandler
*
* Handler for exceptions happening inside a handler.
*/
-static DWORD EXC_RaiseHandler( EXCEPTION_RECORD *rec, EXCEPTION_FRAME *frame,
- CONTEXT *context, EXCEPTION_FRAME **dispatcher )
+static DWORD EXC_RaiseHandler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
+ CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
if (rec->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
return ExceptionContinueSearch;
*
* Handler for exceptions happening inside an unwind handler.
*/
-static DWORD EXC_UnwindHandler( EXCEPTION_RECORD *rec, EXCEPTION_FRAME *frame,
- CONTEXT *context, EXCEPTION_FRAME **dispatcher )
+static DWORD EXC_UnwindHandler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
+ CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
if (!(rec->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND)))
return ExceptionContinueSearch;
* Please do not change the first 4 parameters order in any way - some exceptions handlers
* rely on Base Pointer (EBP) to have a fixed position related to the exception frame
*/
-static DWORD EXC_CallHandler( EXCEPTION_RECORD *record, EXCEPTION_FRAME *frame,
- CONTEXT *context, EXCEPTION_FRAME **dispatcher,
+static DWORD EXC_CallHandler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
+ CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher,
PEXCEPTION_HANDLER handler, PEXCEPTION_HANDLER nested_handler)
{
EXC_NESTED_FRAME newframe;
int ret;
HANDLE handle = 0;
+ if (!NtCurrentTeb()->Peb->BeingDebugged) return 0; /* no debugger present */
+
SERVER_START_REQ( queue_exception_event )
{
req->first = first_chance;
if (!wine_server_call( req )) handle = reply->handle;
}
SERVER_END_REQ;
- if (!handle) return 0; /* no debugger present or other error */
+ if (!handle) return 0;
/* No need to wait on the handle since the process gets suspended
* once the event is passed to the debugger, so when we get back
}
+/**********************************************************************
+ * call_vectored_handlers
+ *
+ * Call the vectored handlers chain.
+ */
+static LONG call_vectored_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
+{
+ struct list *ptr;
+ LONG ret = EXCEPTION_CONTINUE_SEARCH;
+ EXCEPTION_POINTERS except_ptrs;
+
+ except_ptrs.ExceptionRecord = rec;
+ except_ptrs.ContextRecord = context;
+
+ RtlEnterCriticalSection( &vectored_handlers_section );
+ LIST_FOR_EACH( ptr, &vectored_handlers )
+ {
+ VECTORED_HANDLER *handler = LIST_ENTRY( ptr, VECTORED_HANDLER, entry );
+ ret = handler->func( &except_ptrs );
+ if (ret == EXCEPTION_CONTINUE_EXECUTION) break;
+ }
+ RtlLeaveCriticalSection( &vectored_handlers_section );
+ return ret;
+}
+
+
/*******************************************************************
* EXC_DefaultHandling
*
if (rec->ExceptionFlags & EH_STACK_INVALID)
ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
- else if (rec->ExceptionCode == EXCEPTION_NONCONTINUABLE_EXCEPTION)
+ else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
ERR("Process attempted to continue execution after noncontinuable exception.\n");
else
ERR("Unhandled exception code %lx flags %lx addr %p\n",
/***********************************************************************
* RtlRaiseException (NTDLL.@)
*/
-DEFINE_REGS_ENTRYPOINT_1( RtlRaiseException, EXC_RtlRaiseException, EXCEPTION_RECORD * );
-void WINAPI EXC_RtlRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context )
+void WINAPI __regs_RtlRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context )
{
- PEXCEPTION_FRAME frame, dispatch, nested_frame;
+ EXCEPTION_REGISTRATION_RECORD *frame, *dispatch, *nested_frame;
EXCEPTION_RECORD newrec;
DWORD res, c;
TRACE( "code=%lx flags=%lx addr=%p\n", rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
for (c=0; c<rec->NumberParameters; c++) TRACE(" info[%ld]=%08lx\n", c, rec->ExceptionInformation[c]);
if (rec->ExceptionCode == EXCEPTION_WINE_STUB)
- FIXME( "call to unimplemented function %s.%s\n",
- (char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
+ {
+ if (HIWORD(rec->ExceptionInformation[1]))
+ MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
+ rec->ExceptionAddress,
+ (char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
+ else
+ MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
+ rec->ExceptionAddress,
+ (char*)rec->ExceptionInformation[0], rec->ExceptionInformation[1] );
+ }
+#ifdef __i386__
+ else
+ {
+ TRACE(" eax=%08lx ebx=%08lx ecx=%08lx edx=%08lx esi=%08lx edi=%08lx\n",
+ context->Eax, context->Ebx, context->Ecx,
+ context->Edx, context->Esi, context->Edi );
+ TRACE(" ebp=%08lx esp=%08lx cs=%04lx ds=%04lx es=%04lx fs=%04lx gs=%04lx flags=%08lx\n",
+ context->Ebp, context->Esp, context->SegCs, context->SegDs,
+ context->SegEs, context->SegFs, context->SegGs, context->EFlags );
+ }
+#endif
if (send_debug_event( rec, TRUE, context ) == DBG_CONTINUE) return; /* continue execution */
- SIGNAL_Unblock(); /* we may be in a signal handler, and exception handlers may jump out */
+ if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION) return;
- frame = NtCurrentTeb()->except;
+ frame = NtCurrentTeb()->Tib.ExceptionList;
nested_frame = NULL;
- while (frame != (PEXCEPTION_FRAME)0xFFFFFFFF)
+ while (frame != (EXCEPTION_REGISTRATION_RECORD*)~0UL)
{
/* Check frame address */
- if (((void*)frame < NtCurrentTeb()->stack_low) ||
- ((void*)(frame+1) > NtCurrentTeb()->stack_top) ||
- (int)frame & 3)
+ if (((void*)frame < NtCurrentTeb()->Tib.StackLimit) ||
+ ((void*)(frame+1) > NtCurrentTeb()->Tib.StackBase) ||
+ (ULONG_PTR)frame & 3)
{
rec->ExceptionFlags |= EH_STACK_INVALID;
break;
EXC_DefaultHandling( rec, context );
}
+/**********************************************************************/
+
+#ifdef DEFINE_REGS_ENTRYPOINT
+DEFINE_REGS_ENTRYPOINT( RtlRaiseException, 4, 4 );
+#else
+void WINAPI RtlRaiseException( EXCEPTION_RECORD *rec )
+{
+ CONTEXT context;
+ memset( &context, 0, sizeof(context) );
+ __regs_RtlRaiseException( rec, &context );
+}
+#endif
+
/*******************************************************************
* RtlUnwind (NTDLL.@)
*/
-DEFINE_REGS_ENTRYPOINT_4( RtlUnwind, EXC_RtlUnwind,
- PVOID, PVOID, PEXCEPTION_RECORD, PVOID );
-void WINAPI EXC_RtlUnwind( PEXCEPTION_FRAME pEndFrame, LPVOID unusedEip,
- PEXCEPTION_RECORD pRecord, DWORD returnEax,
- CONTEXT *context )
+void WINAPI __regs_RtlUnwind( EXCEPTION_REGISTRATION_RECORD* pEndFrame, PVOID unusedEip,
+ PEXCEPTION_RECORD pRecord, PVOID returnEax, CONTEXT *context )
{
EXCEPTION_RECORD record, newrec;
- PEXCEPTION_FRAME frame, dispatch;
+ EXCEPTION_REGISTRATION_RECORD *frame, *dispatch;
#ifdef __i386__
- context->Eax = returnEax;
+ context->Eax = (DWORD)returnEax;
#endif
/* build an exception record, if we do not have one */
TRACE( "code=%lx flags=%lx\n", pRecord->ExceptionCode, pRecord->ExceptionFlags );
/* get chain of exception frames */
- frame = NtCurrentTeb()->except;
- while ((frame != (PEXCEPTION_FRAME)0xffffffff) && (frame != pEndFrame))
+ frame = NtCurrentTeb()->Tib.ExceptionList;
+ while ((frame != (EXCEPTION_REGISTRATION_RECORD*)~0UL) && (frame != pEndFrame))
{
/* Check frame address */
if (pEndFrame && (frame > pEndFrame))
newrec.NumberParameters = 0;
RtlRaiseException( &newrec ); /* never returns */
}
- if (((void*)frame < NtCurrentTeb()->stack_low) ||
- ((void*)(frame+1) > NtCurrentTeb()->stack_top) ||
+ if (((void*)frame < NtCurrentTeb()->Tib.StackLimit) ||
+ ((void*)(frame+1) > NtCurrentTeb()->Tib.StackBase) ||
(int)frame & 3)
{
newrec.ExceptionCode = STATUS_BAD_STACK;
}
}
+/**********************************************************************/
+
+#ifdef DEFINE_REGS_ENTRYPOINT
+DEFINE_REGS_ENTRYPOINT( RtlUnwind, 16, 16 );
+#else
+void WINAPI RtlUnwind( PVOID pEndFrame, PVOID unusedEip,
+ PEXCEPTION_RECORD pRecord, PVOID returnEax )
+{
+ CONTEXT context;
+ memset( &context, 0, sizeof(context) );
+ __regs_RtlUnwind( pEndFrame, unusedEip, pRecord, returnEax, &context );
+}
+#endif
+
/*******************************************************************
* NtRaiseException (NTDLL.@)
*/
-DEFINE_REGS_ENTRYPOINT_3( NtRaiseException, EXC_NtRaiseException,
- EXCEPTION_RECORD *, CONTEXT *, BOOL );
-void WINAPI EXC_NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *ctx,
+void WINAPI __regs_NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *ctx,
BOOL first, CONTEXT *context )
{
- EXC_RtlRaiseException( rec, ctx );
+ __regs_RtlRaiseException( rec, ctx );
*context = *ctx;
}
+#ifdef DEFINE_REGS_ENTRYPOINT
+DEFINE_REGS_ENTRYPOINT( NtRaiseException, 12, 12 );
+#else
+void WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *ctx, BOOL first )
+{
+ CONTEXT context;
+ memset( &context, 0, sizeof(context) );
+ __regs_NtRaiseException( rec, ctx, first, &context );
+}
+#endif
+
/***********************************************************************
* RtlRaiseStatus (NTDLL.@)
}
+/*******************************************************************
+ * RtlAddVectoredExceptionHandler (NTDLL.@)
+ */
+PVOID WINAPI RtlAddVectoredExceptionHandler( ULONG first, PVECTORED_EXCEPTION_HANDLER func )
+{
+ VECTORED_HANDLER *handler = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*handler) );
+ if (handler)
+ {
+ handler->func = func;
+ RtlEnterCriticalSection( &vectored_handlers_section );
+ if (first) list_add_head( &vectored_handlers, &handler->entry );
+ else list_add_tail( &vectored_handlers, &handler->entry );
+ RtlLeaveCriticalSection( &vectored_handlers_section );
+ }
+ return handler;
+}
+
+
+/*******************************************************************
+ * RtlRemoveVectoredExceptionHandler (NTDLL.@)
+ */
+ULONG WINAPI RtlRemoveVectoredExceptionHandler( PVOID handler )
+{
+ struct list *ptr;
+ ULONG ret = FALSE;
+
+ RtlEnterCriticalSection( &vectored_handlers_section );
+ LIST_FOR_EACH( ptr, &vectored_handlers )
+ {
+ VECTORED_HANDLER *curr_handler = LIST_ENTRY( ptr, VECTORED_HANDLER, entry );
+ if (curr_handler == handler)
+ {
+ list_remove( ptr );
+ ret = TRUE;
+ break;
+ }
+ }
+ RtlLeaveCriticalSection( &vectored_handlers_section );
+ if (ret) RtlFreeHeap( GetProcessHeap(), 0, handler );
+ return ret;
+}
+
+
/*************************************************************
* __wine_exception_handler (NTDLL.@)
*
* Exception handler for exception blocks declared in Wine code.
*/
-DWORD __wine_exception_handler( EXCEPTION_RECORD *record, EXCEPTION_FRAME *frame,
- CONTEXT *context, LPVOID pdispatcher )
+DWORD __wine_exception_handler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
+ CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **pdispatcher )
{
__WINE_FRAME *wine_frame = (__WINE_FRAME *)frame;
RtlUnwind( frame, 0, record, 0 );
__wine_pop_frame( frame );
- longjmp( wine_frame->jmp, 1 );
+ siglongjmp( wine_frame->jmp, 1 );
}
*
* Exception handler for try/finally blocks declared in Wine code.
*/
-DWORD __wine_finally_handler( EXCEPTION_RECORD *record, EXCEPTION_FRAME *frame,
- CONTEXT *context, LPVOID pdispatcher )
+DWORD __wine_finally_handler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
+ CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **pdispatcher )
{
if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
{
}
return ExceptionContinueSearch;
}
-
-
-/*************************************************************
- * __wine_callto16_handler
- *
- * Handler for exceptions occurring in 16-bit code.
- */
-DWORD __wine_callto16_handler( EXCEPTION_RECORD *record, EXCEPTION_FRAME *frame,
- CONTEXT *context, LPVOID pdispatcher )
-{
- if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
- {
- /* unwinding: restore the stack pointer in the TEB, and leave the Win16 mutex */
- STACK32FRAME *frame32 = (STACK32FRAME *)((char *)frame - offsetof(STACK32FRAME,frame));
- NtCurrentTeb()->cur_stack = frame32->frame16;
- _LeaveWin16Lock();
- }
- return ExceptionContinueSearch;
-}
projects / wine / blobdiff