Files
harbour-core/harbour/source/vm/debug.c
2004-01-30 02:50:19 +00:00

279 lines
8.0 KiB
C

/*
* $Id$
*/
/*
* Harbour Project source code:
* Debugging functions for LOCAL, STATIC variables and the stack
*
* Copyright 1999 Eddie Runia <eddie@runia.com>
* www - http://www.harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbapi.h"
#include "hbapiitm.h"
#include "hbstack.h"
/* $Doc$
* $FuncName$ AddToArray( <pItem>, <pReturn>, <uiPos> )
* $Description$ Add <pItem> to array <pReturn> at pos <uiPos>
* $End$ */
static void AddToArray( PHB_ITEM pItem, PHB_ITEM pReturn, ULONG ulPos )
{
PHB_ITEM pTemp;
HB_TRACE(HB_TR_DEBUG, ("AddToArray(%p, %p, %lu)", pItem, pReturn, ulPos));
if( pItem->type == HB_IT_SYMBOL )
{ /* Symbol is pushed as text */
pTemp = hb_itemNew( NULL ); /* Create temporary string */
pTemp->type = HB_IT_STRING;
pTemp->item.asString.length = strlen( pItem->item.asSymbol.value->szName ) + 2;
pTemp->item.asString.value = ( char * ) hb_xgrab( pTemp->item.asString.length + 1 );
pTemp->item.asString.bStatic = FALSE;
sprintf( pTemp->item.asString.value, "[%s]", pItem->item.asSymbol.value->szName );
hb_itemArrayPut( pReturn, ulPos, pTemp );
hb_itemRelease( pTemp ); /* Get rid of temporary str.*/
}
else /* Normal types */
hb_itemArrayPut( pReturn, ulPos, pItem );
}
/* $Doc$
* $FuncName$ <nVars> __vmStkGCount()
* $Description$ Returns the length of the global stack
* $End$ */
static USHORT hb_stackLenGlobal( void )
{
PHB_ITEM * pItem;
USHORT uiCount = 0;
HB_TRACE(HB_TR_DEBUG, ("hb_stackLenGlobal()"));
for( pItem = hb_stack.pItems; pItem++ <= hb_stack.pPos; uiCount++ );
return uiCount;
}
HB_FUNC( HB_DBG_VMSTKGCOUNT )
{
hb_retni( hb_stackLenGlobal() );
}
/* $Doc$
* $FuncName$ <aStack> __vmStkGList()
* $Description$ Returns the global stack
* $End$ */
HB_FUNC( HB_DBG_VMSTKGLIST )
{
PHB_ITEM pReturn;
PHB_ITEM * pItem;
USHORT uiLen = hb_stackLenGlobal();
USHORT uiPos = 1;
pReturn = hb_itemArrayNew( uiLen ); /* Create a transfer array */
for( pItem = hb_stack.pItems; pItem <= hb_stack.pPos; pItem++ )
AddToArray( *pItem, pReturn, uiPos++ );
hb_itemRelease( hb_itemReturn( pReturn ) );
}
/* $Doc$
* $FuncName$ <nVars> __vmStkLCount( <nProcLevel> )
* $Description$ Returns params plus locals amount of the nProcLevel function
* $End$ */
static USHORT hb_stackLen( int iLevel )
{
PHB_ITEM * pBase = hb_stack.pBase;
USHORT uiCount = 0;
HB_TRACE(HB_TR_DEBUG, ("hb_stackLen()"));
while( ( iLevel-- > 0 ) && pBase != hb_stack.pItems )
{
uiCount = pBase - ( hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase ) - 2;
pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;
}
return uiCount;
}
HB_FUNC( HB_DBG_VMSTKLCOUNT )
{
int iLevel = hb_parni( 1 ) + 1;
hb_retni( hb_stackLen( iLevel ) );
}
/* $Doc$
* $FuncName$ <aStack> __vmStkLList()
* $Description$ Returns the stack of the calling function
* "[<symbol>]" Means symbol.
*
* [1] Symbol of current function
* [2] Self | NIL
* [3 .. x] Parameters
* [x+1 .. y] Locals
* [y+1 ..] Pushed data
* $End$ */
HB_FUNC( HB_DBG_VMSTKLLIST )
{
PHB_ITEM pReturn;
PHB_ITEM * pItem;
PHB_ITEM * pBase = hb_stack.pItems + ( *(hb_stack.pBase) )->item.asSymbol.stackbase;
USHORT uiLen = hb_stackLen( 1 );
USHORT uiPos = 1;
pReturn = hb_itemArrayNew( uiLen ); /* Create a transfer array */
for( pItem = pBase; pItem < hb_stack.pBase; pItem++ )
AddToArray( *pItem, pReturn, uiPos++ );
hb_itemRelease( hb_itemReturn( pReturn ) );
}
/* $Doc$
* $FuncName$ <aParam> __vmParLGet()
* $Description$ Returns the passed parameters of the calling function
* $End$ */
/* TODO : put bLocals / bParams */
/* somewhere for declared parameters */
/* and locals */
HB_FUNC( HB_DBG_VMPARLLIST )
{
int iLevel = hb_parni( 1 ) + 1;
PHB_ITEM * pBase = hb_stack.pBase;
PHB_ITEM pReturn;
PHB_ITEM * pItem;
USHORT uiLen, uiPos = 1;
while( ( iLevel-- > 0 ) && pBase != hb_stack.pItems )
pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;
uiLen = ( * pBase )->item.asSymbol.paramcnt;
pReturn = hb_itemArrayNew( uiLen ); /* Create a transfer array */
for( pItem = pBase + 2; uiLen--; pItem++ )
AddToArray( *pItem, pReturn, uiPos++ );
hb_itemRelease( hb_itemReturn( pReturn ) );
}
static void hb_dbgStop()
{
}
HB_FUNC( HB_DBG_VMVARLGET )
{
int iLevel = hb_parni( 1 ) + 1;
int iLocal = hb_parni( 2 );
PHB_ITEM * pBase = hb_stack.pBase;
while( ( iLevel-- > 0 ) && pBase != hb_stack.pItems )
pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;
if( iLocal > SHRT_MAX )
{
hb_dbgStop();
iLocal -= USHRT_MAX;
iLocal--;
}
if( iLocal >= 0 )
hb_itemReturn( hb_itemUnRef( *(pBase + 1 + iLocal) ) );
else
hb_itemReturn( hb_codeblockGetVar( *(pBase+1), ( LONG ) iLocal ) );
}
HB_FUNC( HB_DBG_VMVARLSET )
{
int iLevel = hb_parni( 1 ) + 1;
int iLocal = hb_parni( 2 );
PHB_ITEM * pBase = hb_stack.pBase;
PHB_ITEM pLocal;
while( ( iLevel-- > 0 ) && pBase != hb_stack.pItems )
pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;
if( iLocal > SHRT_MAX )
{
iLocal -= USHRT_MAX;
iLocal--;
}
if( iLocal >= 0 )
pLocal = *(pBase + 1 + iLocal);
else
pLocal = hb_codeblockGetVar( *(pBase+1), ( LONG ) iLocal );
hb_itemCopy( hb_itemUnRef(pLocal), *(hb_stack.pBase + 4) );
}
HB_FUNC( __VMSTKLCOUNT )
{
HB_FUNCNAME(HB_DBG_VMSTKLCOUNT)();
}
HB_FUNC( __VMPARLLIST )
{
HB_FUNCNAME(HB_DBG_VMPARLLIST)();
}
HB_FUNC( __VMSTKLLIST )
{
HB_FUNCNAME(HB_DBG_VMSTKLLIST)();
}
HB_FUNC( __VMVARLGET )
{
HB_FUNCNAME(HB_DBG_VMVARLGET)();
}
HB_FUNC( __VMVARLSET )
{
HB_FUNCNAME(HB_DBG_VMVARLSET)();
}