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127 lines
4.2 KiB
ObjectPascal
127 lines
4.2 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 2002 by Florian Klaempfl
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Generates the argument location information for i386
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published bymethodpointer
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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{ Generates the argument location information for i386.
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}
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unit cpupara;
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{$i fpcdefs.inc}
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interface
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uses
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cpubase,
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globtype,
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symtype,symdef,paramgr;
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type
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{ Returns the location for the nr-st 32 Bit int parameter
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if every parameter before is an 32 Bit int parameter as well
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and if the calling conventions for the helper routines of the
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rtl are used.
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}
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ti386paramanager = class(tparamanager)
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function ret_in_acc(def : tdef;calloption : tproccalloption) : boolean;override;
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function ret_in_param(def : tdef;calloption : tproccalloption) : boolean;override;
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function getintparaloc(nr : longint) : tparalocation;override;
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procedure create_param_loc_info(p : tabstractprocdef);override;
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function getselflocation(p : tabstractprocdef) : tparalocation;override;
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end;
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implementation
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uses
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systems,
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symconst,
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verbose;
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function ti386paramanager.ret_in_acc(def : tdef;calloption : tproccalloption) : boolean;
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begin
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{ Win32 returns small records in the accumulator }
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if ((target_info.system=system_i386_win32) and
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(calloption=pocall_stdcall) and
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(def.deftype=recorddef) and (def.size<=8)) then
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result:=true
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else
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result:=inherited ret_in_acc(def,calloption);
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end;
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function ti386paramanager.ret_in_param(def : tdef;calloption : tproccalloption) : boolean;
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begin
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{ Win32 returns small records in the accumulator }
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if ((target_info.system=system_i386_win32) and
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(calloption=pocall_stdcall) and
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(def.deftype=recorddef) and (def.size<=8)) then
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result:=false
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else
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result:=inherited ret_in_param(def,calloption);
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end;
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function ti386paramanager.getintparaloc(nr : longint) : tparalocation;
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begin
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end;
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procedure ti386paramanager.create_param_loc_info(p : tabstractprocdef);
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begin
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{ set default para_alignment to target_info.stackalignment }
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{ if para_alignment=0 then
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para_alignment:=aktalignment.paraalign;
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}
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end;
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function ti386paramanager.getselflocation(p : tabstractprocdef) : tparalocation;
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begin
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getselflocation.loc:=LOC_REFERENCE;
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getselflocation.reference.index:=R_ESP;
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getselflocation.reference.offset:=4;
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end;
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begin
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paramanager:=ti386paramanager.create;
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end.
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{
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$Log$
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Revision 1.5 2002-11-18 17:32:00 peter
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* pass proccalloption to ret_in_xxx and push_xxx functions
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Revision 1.4 2002/11/15 01:58:56 peter
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* merged changes from 1.0.7 up to 04-11
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- -V option for generating bug report tracing
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- more tracing for option parsing
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- errors for cdecl and high()
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- win32 import stabs
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- win32 records<=8 are returned in eax:edx (turned off by default)
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- heaptrc update
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- more info for temp management in .s file with EXTDEBUG
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Revision 1.3 2002/08/09 07:33:04 florian
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* a couple of interface related fixes
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Revision 1.2 2002/07/11 14:41:32 florian
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* start of the new generic parameter handling
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Revision 1.1 2002/07/07 09:52:33 florian
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* powerpc target fixed, very simple units can be compiled
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* some basic stuff for better callparanode handling, far from being finished
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}
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