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137 lines
4.4 KiB
ObjectPascal
137 lines
4.4 KiB
ObjectPascal
{
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Copyright (c) 1998-2010 by Florian Klaempfl and Jonas Maebe
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Member of the Free Pascal development team
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This unit contains routines to create a pass-through high-level code
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generator. This is used by most regular code generators.
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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 hlcgcpu;
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{$i fpcdefs.inc}
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interface
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uses
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aasmdata,
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symdef,
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hlcg2ll;
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type
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thlcgcpu = class(thlcg2ll)
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procedure g_intf_wrapper(list: TAsmList; procdef: tprocdef; const labelname: string; ioffset: longint);override;
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end;
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implementation
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uses
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verbose,
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cpubase,
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symconst,
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aasmbase,aasmtai,aasmcpu,
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procinfo,
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fmodule,
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hlcgobj,
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cgcpu;
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procedure thlcgcpu.g_intf_wrapper(list: TAsmList; procdef: tprocdef; const labelname: string; ioffset: longint);
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var
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make_global: boolean;
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begin
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if not(procdef.proctypeoption in [potype_function,potype_procedure]) then
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Internalerror(2024091401);
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if not assigned(procdef.struct) 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(2024091402);
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if procdef.owner.symtabletype<>ObjectSymtable then
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Internalerror(2024091403);
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make_global:=false;
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if (not current_module.is_unit) or
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create_smartlink or
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(procdef.owner.defowner.owner.symtabletype=globalsymtable) then
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make_global:=true;
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if make_global then
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list.concat(Tai_symbol.Createname_global(labelname,AT_FUNCTION,0,procdef))
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else
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list.concat(Tai_symbol.Createname_hidden(labelname,AT_FUNCTION,0,procdef));
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{ the wrapper might need aktlocaldata for the additional data to
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load the constant }
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current_procinfo:=cprocinfo.create(nil);
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//{ set param1 interface to self }
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//g_adjust_self_value(list,procdef,ioffset);
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//
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//{ case 4 }
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//if (po_virtualmethod in procdef.procoptions) and
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// not is_objectpascal_helper(procdef.struct) then
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// begin
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// loadvmttor12;
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// op_onr12methodaddr;
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// end
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//{ case 0 }
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//else if GenerateThumbCode then
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// begin
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// { bl cannot be used here because it destroys lr }
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//
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// list.concat(taicpu.op_regset(A_PUSH,R_INTREGISTER,R_SUBWHOLE,[RS_R0]));
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//
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// { create consts entry }
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// reference_reset(tmpref,4,[]);
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// current_asmdata.getjumplabel(l);
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// current_procinfo.aktlocaldata.Concat(tai_align.Create(4));
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// cg.a_label(current_procinfo.aktlocaldata,l);
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// tmpref.symboldata:=current_procinfo.aktlocaldata.last;
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// current_procinfo.aktlocaldata.concat(tai_const.Create_sym(current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION)));
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//
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// tmpref.symbol:=l;
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// tmpref.base:=NR_PC;
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// cg.a_load_ref_reg(list,OS_ADDR,OS_ADDR,tmpref,NR_R0);
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// list.concat(taicpu.op_reg_reg(A_MOV,NR_R12,NR_R0));
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// list.concat(taicpu.op_regset(A_POP,R_INTREGISTER,R_SUBWHOLE,[RS_R0]));
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// list.concat(taicpu.op_reg(A_BX,NR_R12));
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// end
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//else
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// list.concat(taicpu.op_sym(A_B,current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION)));
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list.concatlist(current_procinfo.aktlocaldata);
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{ dummy so far }
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list.concat(taicpu.op_none(A_RET));
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current_procinfo.Free;
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current_procinfo:=nil;
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list.concat(Tai_symbol_end.Createname(labelname));
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end;
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procedure create_hlcodegen_cpu;
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begin
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hlcg:=thlcgcpu.create;
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create_codegen;
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end;
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begin
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chlcgobj:=thlcgcpu;
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create_hlcodegen:=@create_hlcodegen_cpu;
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end.
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