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118 lines
3.4 KiB
ObjectPascal
118 lines
3.4 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2002 by Kovacs Attila Zoltan
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Generate i386 assembly wrapper code interface implementor objects
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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 by
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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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unit nx64obj;
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{$i fpcdefs.inc}
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interface
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implementation
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uses
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systems,
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verbose,globals,globtype,
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aasmbase,aasmtai,aasmcpu,
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symconst,symdef,
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fmodule,
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nobj,
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cpuinfo,cpubase,
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cgutils,cgobj;
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type
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tx8664classheader=class(tclassheader)
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protected
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procedure cgintfwrapper(asmlist: TAAsmoutput; procdef: tprocdef; const labelname: string; ioffset: longint);override;
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end;
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procedure tx8664classheader.cgintfwrapper(asmlist: TAAsmoutput; procdef: tprocdef; const labelname: string; ioffset: longint);
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var
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oldexprasmlist: TAAsmoutput;
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make_global : boolean;
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href : treference;
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begin
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if procdef.proctypeoption<>potype_none then
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Internalerror(200006137);
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if not assigned(procdef._class) or
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(procdef.procoptions*[po_classmethod, po_staticmethod,
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po_methodpointer, po_interrupt, po_iocheck]<>[]) then
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Internalerror(200006138);
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if procdef.owner.symtabletype<>objectsymtable then
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Internalerror(200109191);
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make_global:=false;
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if (not current_module.is_unit) or
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(procdef.owner.defowner.owner.symtabletype=globalsymtable) then
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make_global:=true;
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oldexprasmlist:=exprasmlist;
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exprasmlist:=asmlist;
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if make_global then
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exprasmList.concat(Tai_symbol.Createname_global(labelname,AT_FUNCTION,0))
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else
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exprasmList.concat(Tai_symbol.Createname(labelname,AT_FUNCTION,0));
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{ set param1 interface to self }
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adjustselfvalue(procdef,ioffset);
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if po_virtualmethod in procdef.procoptions then
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begin
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if (procdef.extnumber=$ffff) then
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Internalerror(200006139);
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{ mov 0(%rdi),%rax ; load vmt}
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reference_reset_base(href,NR_RDI,0);
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cg.a_load_ref_reg(asmlist,OS_ADDR,OS_ADDR,href,NR_RAX);
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{ jmp *vmtoffs(%eax) ; method offs }
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reference_reset_base(href,NR_RAX,procdef._class.vmtmethodoffset(procdef.extnumber));
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asmlist.concat(taicpu.op_ref_reg(A_MOV,S_Q,href,NR_RAX));
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asmlist.concat(taicpu.op_reg(A_JMP,S_Q,NR_RAX));
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end
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else
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asmlist.concat(taicpu.op_sym(A_JMP,S_NO,objectlibrary.newasmsymbol(procdef.mangledname,AB_EXTERNAL,AT_FUNCTION)));
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exprasmList.concat(Tai_symbol_end.Createname(labelname));
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exprasmlist:=oldexprasmlist;
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end;
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initialization
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cclassheader:=tx8664classheader;
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end.
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{
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$Log$
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Revision 1.2 2004-06-16 20:07:11 florian
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* dwarf branch merged
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Revision 1.1.2.3 2004/05/10 21:28:35 peter
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* section_smartlink enabled for gas under linux
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Revision 1.1.2.2 2004/04/29 21:54:29 florian
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* interface wrappers fixed
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Revision 1.1.2.1 2004/04/22 21:14:34 peter
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* nx64obj added, untested
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}
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