mirror of
git://source.winehq.org/git/wine.git
synced 2024-09-16 01:39:56 +00:00
Moved signal handling to exception.c, generate exceptions on signals.
Added hook for debugger in exception handling (temporary).
This commit is contained in:
parent
66f53a8a8b
commit
1eeed68514
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@ -5,12 +5,16 @@
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* Copyright 1999 Alexandre Julliard
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*/
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#include "debugtools.h"
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#include <signal.h>
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#include "winnt.h"
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#include "ntddk.h"
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#include "process.h"
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#include "global.h"
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#include "wine/exception.h"
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#include "stackframe.h"
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#include "sig_context.h"
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#include "miscemu.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(seh)
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@ -21,6 +25,41 @@ typedef struct
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EXCEPTION_FRAME *prevFrame;
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} EXC_NESTED_FRAME;
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#ifdef __i386__
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# define GET_IP(context) ((LPVOID)EIP_reg(context))
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#else
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# define GET_IP(context) ((LPVOID)0)
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#endif /* __i386__ */
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/* Default hook for built-in debugger */
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static DWORD default_hook( EXCEPTION_RECORD *rec, CONTEXT *ctx, BOOL first )
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{
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if (!first)
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{
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DPRINTF( "stopping process due to unhandled exception %08lx.\n",
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rec->ExceptionCode );
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raise( SIGSTOP );
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}
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return 0; /* not handled */
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}
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static DEBUGHOOK debug_hook = default_hook;
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/*******************************************************************
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* EXC_SetDebugEventHook
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* EXC_GetDebugEventHook
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*
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* Set/Get the hook for the built-in debugger.
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*
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* FIXME: the built-in debugger should use the normal debug events.
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*/
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void EXC_SetDebugEventHook( DEBUGHOOK hook )
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{
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debug_hook = hook;
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}
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DEBUGHOOK EXC_GetDebugEventHook(void)
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{
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return debug_hook;
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}
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/*******************************************************************
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* EXC_RaiseHandler
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@ -90,6 +129,9 @@ static void EXC_DefaultHandling( EXCEPTION_RECORD *rec, CONTEXT *context )
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(DEBUG_SendExceptionEvent( rec, FALSE ) == DBG_CONTINUE))
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return; /* continue execution */
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if (debug_hook( rec, context, FALSE ) == DBG_CONTINUE)
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return; /* continue execution */
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if (rec->ExceptionFlags & EH_STACK_INVALID)
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ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
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else if (rec->ExceptionCode == EXCEPTION_NONCONTINUABLE_EXCEPTION)
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@ -97,7 +139,6 @@ static void EXC_DefaultHandling( EXCEPTION_RECORD *rec, CONTEXT *context )
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else
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ERR("Unhandled exception code %lx flags %lx addr %p\n",
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rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
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/* Should I add here a back trace ? */
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TerminateProcess( GetCurrentProcess(), 1 );
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}
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@ -117,13 +158,16 @@ void WINAPI REGS_FUNC(RtlRaiseException)( EXCEPTION_RECORD *rec, CONTEXT *contex
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(DEBUG_SendExceptionEvent( rec, TRUE ) == DBG_CONTINUE))
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return; /* continue execution */
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frame = NtCurrentTeb()->except;
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if (debug_hook( rec, context, TRUE ) == DBG_CONTINUE)
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return; /* continue execution */
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frame = CURRENT()->except;
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nested_frame = NULL;
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while (frame != (PEXCEPTION_FRAME)0xFFFFFFFF)
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{
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/* Check frame address */
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if (((void*)frame < NtCurrentTeb()->stack_low) ||
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((void*)(frame+1) > NtCurrentTeb()->stack_top) ||
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if (((void*)frame < CURRENT()->stack_low) ||
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((void*)(frame+1) > CURRENT()->stack_top) ||
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(int)frame & 3)
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{
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rec->ExceptionFlags |= EH_STACK_INVALID;
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@ -187,7 +231,7 @@ void WINAPI REGS_FUNC(RtlUnwind)( PEXCEPTION_FRAME pEndFrame, LPVOID unusedEip,
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record.ExceptionCode = STATUS_UNWIND;
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record.ExceptionFlags = 0;
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record.ExceptionRecord = NULL;
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record.ExceptionAddress = (LPVOID)EIP_reg(context);
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record.ExceptionAddress = GET_IP(context);
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record.NumberParameters = 0;
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pRecord = &record;
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}
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@ -197,7 +241,7 @@ void WINAPI REGS_FUNC(RtlUnwind)( PEXCEPTION_FRAME pEndFrame, LPVOID unusedEip,
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TRACE( "code=%lx flags=%lx\n", pRecord->ExceptionCode, pRecord->ExceptionFlags );
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/* get chain of exception frames */
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frame = NtCurrentTeb()->except;
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frame = CURRENT()->except;
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while ((frame != (PEXCEPTION_FRAME)0xffffffff) && (frame != pEndFrame))
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{
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/* Check frame address */
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@ -209,8 +253,8 @@ void WINAPI REGS_FUNC(RtlUnwind)( PEXCEPTION_FRAME pEndFrame, LPVOID unusedEip,
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newrec.NumberParameters = 0;
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RtlRaiseException( &newrec ); /* never returns */
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}
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if (((void*)frame < NtCurrentTeb()->stack_low) ||
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((void*)(frame+1) > NtCurrentTeb()->stack_top) ||
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if (((void*)frame < CURRENT()->stack_low) ||
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((void*)(frame+1) > CURRENT()->stack_top) ||
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(int)frame & 3)
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{
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newrec.ExceptionCode = STATUS_BAD_STACK;
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@ -237,7 +281,7 @@ void WINAPI REGS_FUNC(RtlUnwind)( PEXCEPTION_FRAME pEndFrame, LPVOID unusedEip,
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RtlRaiseException( &newrec ); /* never returns */
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break;
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}
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NtCurrentTeb()->except = frame = frame->Prev;
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frame = EXC_pop_frame( frame );
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}
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}
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@ -271,3 +315,380 @@ void WINAPI RtlRaiseStatus( NTSTATUS status )
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ExceptionRec.NumberParameters = 0;
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RtlRaiseException( &ExceptionRec );
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}
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/***********************************************************************
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* DebugBreak (KERNEL32.181)
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*/
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void WINAPI REGS_FUNC(DebugBreak)( CONTEXT *context )
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{
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EXCEPTION_RECORD rec;
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rec.ExceptionCode = EXCEPTION_BREAKPOINT;
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rec.ExceptionFlags = EH_NONCONTINUABLE;
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rec.ExceptionRecord = NULL;
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rec.NumberParameters = 0;
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REGS_FUNC(RtlRaiseException)( &rec, context );
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}
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/***********************************************************************
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* DebugBreak16 (KERNEL.203)
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*/
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void WINAPI DebugBreak16( CONTEXT *context )
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{
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REGS_FUNC(DebugBreak)( context );
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}
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/***********************************************************************
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* EXC_SaveContext
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*
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* Set the register values from a sigcontext.
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*/
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static void EXC_SaveContext( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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EAX_reg(context) = EAX_sig(sigcontext);
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EBX_reg(context) = EBX_sig(sigcontext);
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ECX_reg(context) = ECX_sig(sigcontext);
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EDX_reg(context) = EDX_sig(sigcontext);
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ESI_reg(context) = ESI_sig(sigcontext);
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EDI_reg(context) = EDI_sig(sigcontext);
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EBP_reg(context) = EBP_sig(sigcontext);
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EFL_reg(context) = EFL_sig(sigcontext);
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EIP_reg(context) = EIP_sig(sigcontext);
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ESP_reg(context) = ESP_sig(sigcontext);
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CS_reg(context) = LOWORD(CS_sig(sigcontext));
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DS_reg(context) = LOWORD(DS_sig(sigcontext));
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ES_reg(context) = LOWORD(ES_sig(sigcontext));
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SS_reg(context) = LOWORD(SS_sig(sigcontext));
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#ifdef FS_sig
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FS_reg(context) = LOWORD(FS_sig(sigcontext));
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#else
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GET_FS( FS_reg(context) );
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FS_reg(context) &= 0xffff;
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#endif
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#ifdef GS_sig
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GS_reg(context) = LOWORD(GS_sig(sigcontext));
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#else
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GET_GS( GS_reg(context) );
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GS_reg(context) &= 0xffff;
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#endif
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if (ISV86(context)) V86BASE(context) = (DWORD)DOSMEM_MemoryBase(0);
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#endif /* __i386__ */
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}
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/***********************************************************************
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* EXC_RestoreContext
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*
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* Build a sigcontext from the register values.
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*/
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static void EXC_RestoreContext( const CONTEXT *context, SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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EAX_sig(sigcontext) = EAX_reg(context);
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EBX_sig(sigcontext) = EBX_reg(context);
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ECX_sig(sigcontext) = ECX_reg(context);
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EDX_sig(sigcontext) = EDX_reg(context);
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ESI_sig(sigcontext) = ESI_reg(context);
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EDI_sig(sigcontext) = EDI_reg(context);
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EBP_sig(sigcontext) = EBP_reg(context);
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EFL_sig(sigcontext) = EFL_reg(context);
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EIP_sig(sigcontext) = EIP_reg(context);
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ESP_sig(sigcontext) = ESP_reg(context);
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CS_sig(sigcontext) = CS_reg(context);
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DS_sig(sigcontext) = DS_reg(context);
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ES_sig(sigcontext) = ES_reg(context);
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SS_sig(sigcontext) = SS_reg(context);
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#ifdef FS_sig
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FS_sig(sigcontext) = FS_reg(context);
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#else
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SET_FS( FS_reg(context) );
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#endif
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#ifdef GS_sig
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GS_sig(sigcontext) = GS_reg(context);
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#else
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SET_GS( GS_reg(context) );
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#endif
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#endif /* __i386__ */
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}
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/**********************************************************************
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* EXC_segv
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*
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* Handler for SIGSEGV and related errors.
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*/
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static HANDLER_DEF(EXC_segv)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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rec.NumberParameters = 0;
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#ifdef TRAP_sig
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switch(TRAP_sig(HANDLER_CONTEXT))
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{
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case 4: /* Overflow exception */
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rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
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break;
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case 5: /* Bound range exception */
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rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
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break;
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case 6: /* Invalid opcode exception */
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rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
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break;
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case 12: /* Stack fault */
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rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
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break;
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case 11: /* Segment not present exception */
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case 13: /* General protection fault */
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if (INSTR_EmulateInstruction( HANDLER_CONTEXT )) return;
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rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
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break;
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case 14: /* Page fault */
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#ifdef CR2_sig
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if (VIRTUAL_HandleFault( (LPVOID)CR2_sig(HANDLER_CONTEXT) )) return;
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rec.NumberParameters = 2;
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#ifdef ERROR_sig
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rec.ExceptionInformation[0] = (ERROR_sig(HANDLER_CONTEXT) & 2) != 0;
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#else
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rec.ExceptionInformation[0] = 0;
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#endif /* ERROR_sig */
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rec.ExceptionInformation[1] = CR2_sig(HANDLER_CONTEXT);
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#endif /* CR2_sig */
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rec.ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
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break;
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case 17: /* Alignment check exception */
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/* FIXME: pass through exception handler first? */
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if (EFL_sig(HANDLER_CONTEXT) & 0x00040000)
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{
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/* Disable AC flag, return */
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EFL_sig(HANDLER_CONTEXT) &= ~0x00040000;
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return;
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}
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rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
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break;
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default:
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ERR( "Got unexpected trap %ld\n", TRAP_sig(HANDLER_CONTEXT) );
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/* fall through */
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case 2: /* NMI interrupt */
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case 7: /* Device not available exception */
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case 8: /* Double fault exception */
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case 10: /* Invalid TSS exception */
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case 15: /* Unknown exception */
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case 18: /* Machine check exception */
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case 19: /* Cache flush exception */
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rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
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break;
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}
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#else /* TRAP_sig */
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# ifdef __i386
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if (INSTR_EmulateInstruction( HANDLER_CONTEXT )) return;
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# endif
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rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION; /* generic error */
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#endif /* TRAP_sig */
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EXC_SaveContext( &context, HANDLER_CONTEXT );
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rec.ExceptionRecord = NULL;
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rec.ExceptionFlags = EH_NONCONTINUABLE;
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rec.ExceptionAddress = GET_IP(&context);
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REGS_FUNC(RtlRaiseException)( &rec, &context );
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EXC_RestoreContext( &context, HANDLER_CONTEXT );
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}
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/**********************************************************************
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* EXC_trap
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*
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* Handler for SIGTRAP.
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*/
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static HANDLER_DEF(EXC_trap)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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#ifdef TRAP_sig
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rec.ExceptionCode = (TRAP_sig(HANDLER_CONTEXT) == 1) ?
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EXCEPTION_SINGLE_STEP : EXCEPTION_BREAKPOINT;
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#else
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rec.ExceptionCode = EXCEPTION_BREAKPOINT;
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#endif /* TRAP_sig */
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EXC_SaveContext( &context, HANDLER_CONTEXT );
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rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = GET_IP(&context);
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rec.NumberParameters = 0;
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REGS_FUNC(RtlRaiseException)( &rec, &context );
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EXC_RestoreContext( &context, HANDLER_CONTEXT );
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}
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/***********************************************************************
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* EXC_SaveFPU
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*
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* Set the FPU context from a sigcontext.
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*/
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static void inline EXC_SaveFPU( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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# ifdef FPU_sig
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if (FPU_sig(sigcontext))
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{
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context->FloatSave = *FPU_sig(sigcontext);
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return;
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}
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# endif /* FPU_sig */
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# ifdef __GNUC__
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__asm__ __volatile__( "fnsave %0; fwait" : "=m" (context->FloatSave) );
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# endif /* __GNUC__ */
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#endif /* __i386__ */
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}
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/***********************************************************************
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* EXC_RestoreFPU
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*
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* Restore the FPU context to a sigcontext.
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*/
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static void inline EXC_RestoreFPU( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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# ifdef FPU_sig
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if (FPU_sig(sigcontext))
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{
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*FPU_sig(sigcontext) = context->FloatSave;
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return;
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}
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# endif /* FPU_sig */
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# ifdef __GNUC__
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/* avoid nested exceptions */
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context->FloatSave.StatusWord &= context->FloatSave.ControlWord | 0xffffff80;
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__asm__ __volatile__( "frstor %0; fwait" : : "m" (context->FloatSave) );
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# endif /* __GNUC__ */
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#endif /* __i386__ */
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}
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/**********************************************************************
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* EXC_GetFPUCode
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*
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* Get the FPU exception code from the FPU status.
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*/
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static inline DWORD EXC_GetFPUCode( const CONTEXT *context )
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{
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#ifdef __i386__
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DWORD status = context->FloatSave.StatusWord;
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if (status & 0x01) /* IE */
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{
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if (status & 0x40) /* SF */
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return EXCEPTION_FLT_STACK_CHECK;
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else
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return EXCEPTION_FLT_INVALID_OPERATION;
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}
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if (status & 0x02) return EXCEPTION_FLT_DENORMAL_OPERAND; /* DE flag */
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if (status & 0x04) return EXCEPTION_FLT_DIVIDE_BY_ZERO; /* ZE flag */
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if (status & 0x08) return EXCEPTION_FLT_OVERFLOW; /* OE flag */
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if (status & 0x10) return EXCEPTION_FLT_UNDERFLOW; /* UE flag */
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if (status & 0x20) return EXCEPTION_FLT_INEXACT_RESULT; /* PE flag */
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#endif /* __i386__ */
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return EXCEPTION_FLT_INVALID_OPERATION; /* generic error */
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}
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/**********************************************************************
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* EXC_fpe
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*
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* Handler for SIGFPE.
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*/
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static HANDLER_DEF(EXC_fpe)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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EXC_SaveFPU( &context, HANDLER_CONTEXT );
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#ifdef TRAP_sig
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switch(TRAP_sig(HANDLER_CONTEXT))
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{
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case 0: /* Division by zero exception */
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rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
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break;
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case 9: /* Coprocessor segment overrun */
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rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
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break;
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case 16: /* Floating point exception */
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rec.ExceptionCode = EXC_GetFPUCode( &context );
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break;
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default:
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ERR( "Got unexpected trap %ld\n", TRAP_sig(HANDLER_CONTEXT) );
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rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
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break;
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}
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#else /* TRAP_sig */
|
||||
rec.ExceptionCode = EXC_GetFPUCode( &context );
|
||||
#endif /* TRAP_sig */
|
||||
|
||||
EXC_SaveContext( &context, HANDLER_CONTEXT );
|
||||
rec.ExceptionFlags = EH_NONCONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = GET_IP(&context);
|
||||
rec.NumberParameters = 0;
|
||||
REGS_FUNC(RtlRaiseException)( &rec, &context );
|
||||
EXC_RestoreContext( &context, HANDLER_CONTEXT );
|
||||
EXC_RestoreFPU( &context, HANDLER_CONTEXT );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* EXC_int
|
||||
*
|
||||
* Handler for SIGINT.
|
||||
*/
|
||||
static HANDLER_DEF(EXC_int)
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
|
||||
HANDLER_INIT();
|
||||
|
||||
EXC_SaveContext( &context, HANDLER_CONTEXT );
|
||||
rec.ExceptionCode = CONTROL_C_EXIT;
|
||||
rec.ExceptionFlags = EH_NONCONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = GET_IP(&context);
|
||||
rec.NumberParameters = 0;
|
||||
REGS_FUNC(RtlRaiseException)( &rec, &context );
|
||||
EXC_RestoreContext( &context, HANDLER_CONTEXT );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* EXC_InitHandlers
|
||||
*
|
||||
* Initialize the signal handlers for exception handling.
|
||||
*/
|
||||
void EXC_InitHandlers(void)
|
||||
{
|
||||
SIGNAL_SetHandler( SIGINT, (void (*)())EXC_int, 1 );
|
||||
SIGNAL_SetHandler( SIGFPE, (void (*)())EXC_fpe, 1 );
|
||||
SIGNAL_SetHandler( SIGSEGV, (void (*)())EXC_segv, 1 );
|
||||
SIGNAL_SetHandler( SIGILL, (void (*)())EXC_segv, 1 );
|
||||
#ifdef SIGBUS
|
||||
SIGNAL_SetHandler( SIGBUS, (void (*)())EXC_segv, 1 );
|
||||
#endif
|
||||
#ifdef SIGTRAP
|
||||
SIGNAL_SetHandler( SIGTRAP, (void (*)())EXC_trap, 1 );
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
|
|
@ -54,7 +54,7 @@ typedef int INT32;
|
|||
#include "heap.h"
|
||||
#include "dc.h"
|
||||
#include "win.h"
|
||||
#include "miscemu.h"
|
||||
#include "wine/exception.h"
|
||||
#include "ddraw.h"
|
||||
#include "d3d.h"
|
||||
#include "debug.h"
|
||||
|
@ -3384,7 +3384,7 @@ static HRESULT WINAPI DGA_IDirectDrawImpl_SetDisplayMode(
|
|||
TSXF86DGASetViewPort(display,DefaultScreen(display),0,0);
|
||||
|
||||
#ifdef RESTORE_SIGNALS
|
||||
SIGNAL_InitHandlers();
|
||||
EXC_InitHandlers();
|
||||
#endif
|
||||
return DD_OK;
|
||||
#else /* defined(HAVE_LIBXXF86DGA) */
|
||||
|
@ -3816,7 +3816,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_RestoreDisplayMode(LPDIRECTDRAW2 ifac
|
|||
Sleep(1000);
|
||||
TSXF86DGADirectVideo(display,DefaultScreen(display),0);
|
||||
#ifdef RESTORE_SIGNALS
|
||||
SIGNAL_InitHandlers();
|
||||
EXC_InitHandlers();
|
||||
#endif
|
||||
return DD_OK;
|
||||
#else /* defined(HAVE_LIBXXF86DGA) */
|
||||
|
@ -3869,7 +3869,7 @@ static ULONG WINAPI DGA_IDirectDraw2Impl_Release(LPDIRECTDRAW2 iface) {
|
|||
#endif
|
||||
|
||||
#ifdef RESTORE_SIGNALS
|
||||
SIGNAL_InitHandlers();
|
||||
EXC_InitHandlers();
|
||||
#endif
|
||||
HeapFree(GetProcessHeap(),0,This);
|
||||
return 0;
|
||||
|
@ -4765,7 +4765,7 @@ HRESULT WINAPI DGA_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnkOuter)
|
|||
depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
|
||||
_common_depth_to_pixelformat(depth, &((*ilplpDD)->d.directdraw_pixelformat), &((*ilplpDD)->d.screen_pixelformat), NULL);
|
||||
#ifdef RESTORE_SIGNALS
|
||||
SIGNAL_InitHandlers();
|
||||
EXC_InitHandlers();
|
||||
#endif
|
||||
|
||||
return DD_OK;
|
||||
|
|
|
@ -185,7 +185,6 @@ extern void WINAPI XMS_Handler(CONTEXT*);
|
|||
extern BOOL SIGNAL_Init(void);
|
||||
extern void SIGNAL_SetHandler( int sig, void (*func)(), int flags );
|
||||
extern void SIGNAL_MaskAsyncEvents( BOOL flag );
|
||||
extern void SIGNAL_InitHandlers(void);
|
||||
|
||||
/* misc/aspi.c */
|
||||
extern void ASPI_DOS_HandleInt(CONTEXT *context);
|
||||
|
|
|
@ -159,6 +159,7 @@ typedef struct _CONTEXT /* Note 1 */
|
|||
#define CR2_sig(context) ((context)->cr2)
|
||||
#define TRAP_sig(context) ((context)->sc_trapno)
|
||||
#define ERROR_sig(context) ((context)->sc_err)
|
||||
#define FPU_sig(context) ((FLOATING_SAVE_AREA*)((context)->i387))
|
||||
#endif
|
||||
|
||||
#ifndef __FreeBSD__
|
||||
|
@ -280,4 +281,7 @@ typedef DWORD SIGCONTEXT;
|
|||
#define HANDLER_CONTEXT 0
|
||||
#endif
|
||||
|
||||
/* memory/instr.c */
|
||||
extern BOOL INSTR_EmulateInstruction( SIGCONTEXT * );
|
||||
|
||||
#endif /* __WINE_SIG_CONTEXT_H */
|
||||
|
|
145
loader/signal.c
145
loader/signal.c
|
@ -10,7 +10,6 @@
|
|||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <signal.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <time.h>
|
||||
#include <setjmp.h>
|
||||
|
@ -34,44 +33,12 @@
|
|||
#include "winsock.h"
|
||||
#include "global.h"
|
||||
#include "options.h"
|
||||
#include "debugger.h"
|
||||
#include "miscemu.h"
|
||||
#include "dosexe.h"
|
||||
#include "thread.h"
|
||||
#include "wine/exception.h"
|
||||
#include "debugtools.h"
|
||||
|
||||
void (*fnWINE_Debugger)(int,SIGCONTEXT*) = NULL;
|
||||
void (*ctx_debug_call)(int sig,CONTEXT*ctx)=NULL;
|
||||
BOOL (*fnINSTR_EmulateInstruction)(SIGCONTEXT*ctx)=NULL;
|
||||
|
||||
|
||||
#ifdef __i386__
|
||||
|
||||
/* i386 specific faults */
|
||||
static const char * const SIGNAL_traps[] =
|
||||
{
|
||||
"Division by zero exception", /* 0 */
|
||||
"Debug exception", /* 1 */
|
||||
"NMI interrupt", /* 2 */
|
||||
"Breakpoint exception", /* 3 */
|
||||
"Overflow exception", /* 4 */
|
||||
"Bound range exception", /* 5 */
|
||||
"Invalid opcode exception", /* 6 */
|
||||
"Device not available exception", /* 7 */
|
||||
"Double fault exception", /* 8 */
|
||||
"Coprocessor segment overrun", /* 9 */
|
||||
"Invalid TSS exception", /* 10 */
|
||||
"Segment not present exception", /* 11 */
|
||||
"Stack fault", /* 12 */
|
||||
"General protection fault", /* 13 */
|
||||
"Page fault", /* 14 */
|
||||
"Unknown exception", /* 15 */
|
||||
"Floating point exception", /* 16 */
|
||||
"Alignment check exception", /* 17 */
|
||||
"Machine check exception" /* 18 */
|
||||
};
|
||||
#define NB_TRAPS (sizeof(SIGNAL_traps) / sizeof(SIGNAL_traps[0]))
|
||||
#endif
|
||||
|
||||
/* Linux sigaction function */
|
||||
|
||||
|
@ -199,114 +166,6 @@ void SIGNAL_MaskAsyncEvents( BOOL flag )
|
|||
sigprocmask( (flag) ? SIG_BLOCK : SIG_UNBLOCK , &async_signal_set, NULL);
|
||||
}
|
||||
|
||||
extern void SIGNAL_SetHandler( int sig, void (*func)(), int flags );
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_break
|
||||
*
|
||||
* Handle Ctrl-C and such
|
||||
*/
|
||||
static HANDLER_DEF(SIGNAL_break)
|
||||
{
|
||||
HANDLER_INIT();
|
||||
if (Options.debug && fnWINE_Debugger)
|
||||
fnWINE_Debugger( signal, HANDLER_CONTEXT ); /* Enter our debugger */
|
||||
else exit(0);
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_trap
|
||||
*
|
||||
* SIGTRAP handler.
|
||||
*/
|
||||
static HANDLER_DEF(SIGNAL_trap)
|
||||
{
|
||||
HANDLER_INIT();
|
||||
if (fnWINE_Debugger)
|
||||
fnWINE_Debugger( signal, HANDLER_CONTEXT ); /* Enter our debugger */
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_fault
|
||||
*
|
||||
* Segfault handler.
|
||||
*/
|
||||
static HANDLER_DEF(SIGNAL_fault)
|
||||
{
|
||||
const char *fault = "Segmentation fault";
|
||||
HANDLER_INIT();
|
||||
|
||||
#ifdef __i386__
|
||||
|
||||
#if defined(TRAP_sig) && defined(CR2_sig)
|
||||
if (TRAP_sig(HANDLER_CONTEXT) == 0x0e
|
||||
&& VIRTUAL_HandleFault( (LPVOID)CR2_sig(HANDLER_CONTEXT) ))
|
||||
return;
|
||||
#endif
|
||||
#if defined(TRAP_sig)
|
||||
/* We don't do alignment checks */
|
||||
/* FIXME: if we get SEHs, pass the fault through them first? */
|
||||
if (TRAP_sig(HANDLER_CONTEXT) == 0x11) {
|
||||
if (EFL_sig(HANDLER_CONTEXT) & 0x00040000) {
|
||||
/* Disable AC flag, return */
|
||||
EFL_sig(HANDLER_CONTEXT) &= ~0x00040000;
|
||||
return;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
if (fnINSTR_EmulateInstruction &&
|
||||
fnINSTR_EmulateInstruction( HANDLER_CONTEXT )
|
||||
)
|
||||
return;
|
||||
|
||||
#ifdef TRAP_sig
|
||||
if (TRAP_sig( HANDLER_CONTEXT ) < NB_TRAPS)
|
||||
fault = SIGNAL_traps[TRAP_sig( HANDLER_CONTEXT )];
|
||||
#endif
|
||||
if (IS_SELECTOR_SYSTEM(CS_sig(HANDLER_CONTEXT)))
|
||||
{
|
||||
MESSAGE("%s in 32-bit code (0x%08lx).\n", fault, EIP_sig(HANDLER_CONTEXT));
|
||||
}
|
||||
else
|
||||
{
|
||||
MESSAGE("%s in 16-bit code (%04x:%04lx).\n", fault,
|
||||
(WORD)CS_sig(HANDLER_CONTEXT), EIP_sig(HANDLER_CONTEXT) );
|
||||
}
|
||||
#ifdef CR2_sig
|
||||
MESSAGE("Fault address is 0x%08lx\n",CR2_sig(HANDLER_CONTEXT));
|
||||
#endif
|
||||
#endif
|
||||
|
||||
if (fnWINE_Debugger)
|
||||
fnWINE_Debugger( signal, HANDLER_CONTEXT );
|
||||
else {
|
||||
MESSAGE("stopping pid %d due to unhandled %s.\n",getpid(),fault);
|
||||
kill(getpid(),SIGSTOP);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_InitHandlers
|
||||
*/
|
||||
void SIGNAL_InitHandlers(void)
|
||||
{
|
||||
SIGNAL_SetHandler( SIGINT, (void (*)())SIGNAL_break, 1);
|
||||
SIGNAL_SetHandler( SIGSEGV, (void (*)())SIGNAL_fault, 1);
|
||||
SIGNAL_SetHandler( SIGILL, (void (*)())SIGNAL_fault, 1);
|
||||
SIGNAL_SetHandler( SIGFPE, (void (*)())SIGNAL_fault, 1);
|
||||
#ifdef SIGTRAP
|
||||
SIGNAL_SetHandler( SIGTRAP, (void (*)())SIGNAL_trap, 1); /* debugger */
|
||||
#endif
|
||||
SIGNAL_SetHandler( SIGHUP, (void (*)())SIGNAL_trap, 1); /* forced break*/
|
||||
#ifdef SIGBUS
|
||||
SIGNAL_SetHandler( SIGBUS, (void (*)())SIGNAL_fault, 1);
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_Init
|
||||
|
@ -341,6 +200,6 @@ BOOL SIGNAL_Init(void)
|
|||
|
||||
/* ignore SIGPIPE so that WINSOCK can get a EPIPE error instead */
|
||||
signal (SIGPIPE, SIG_IGN);
|
||||
SIGNAL_InitHandlers();
|
||||
EXC_InitHandlers();
|
||||
return TRUE;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue