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{
Copyright (c) 1998-2010 by Florian Klaempfl and Jonas Maebe
Member of the Free Pascal development team
This unit contains routines to create a pass-through high-level code
generator. This is used by most regular code generators.
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 of the License, 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 program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit hlcgcpu;
{$i fpcdefs.inc}
interface
uses
symtype,
aasmdata,
symdef,
cgbase,cgutils,
hlcgobj, hlcg2ll;
type
thlcgxtensa = class(thlcg2ll)
procedure g_intf_wrapper(list: TAsmList; procdef: tprocdef; const labelname: string; ioffset: longint);override;
procedure record_generated_code_for_procdef(pd: tprocdef; code, data: TAsmList);override;
end;
implementation
uses
verbose,globtype,fmodule,
aasmbase,aasmtai,
symconst,symsym,defutil,
cpubase,aasmcpu,parabase,
procinfo,
cgobj,cgcpu;
procedure create_hlcodegen_cpu;
begin
hlcg:=thlcgxtensa.create;
create_codegen;
end;
procedure thlcgxtensa.g_intf_wrapper(list : TAsmList; procdef : tprocdef;
const labelname : string; ioffset : longint);
var
make_global : boolean;
tmpref : treference;
l : TAsmLabel;
begin
if not(procdef.proctypeoption in [potype_function,potype_procedure]) then
Internalerror(200006137);
if not assigned(procdef.struct) or
(procdef.procoptions*[po_classmethod, po_staticmethod,
po_methodpointer, po_interrupt, po_iocheck]<>[]) then
Internalerror(200006138);
if procdef.owner.symtabletype<>ObjectSymtable then
Internalerror(200109191);
make_global:=false;
if (not current_module.is_unit) or
create_smartlink or
(procdef.owner.defowner.owner.symtabletype=globalsymtable) then
make_global:=true;
if make_global then
list.concat(Tai_symbol.Createname_global(labelname,AT_FUNCTION,0,procdef))
else
list.concat(Tai_symbol.Createname_hidden(labelname,AT_FUNCTION,0,procdef));
{ the wrapper might need aktlocaldata for the additional data to
load the constant }
current_procinfo:=cprocinfo.create(nil);
{ set param1 interface to self }
g_adjust_self_value(list,procdef,ioffset);
{ case 4 }
if (po_virtualmethod in procdef.procoptions) and
not is_objectpascal_helper(procdef.struct) then
begin
// loadvmttor12;
// op_onr12methodaddr;
end
else
list.concat(taicpu.op_sym(A_CALL0,current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION)));
list.concatlist(current_procinfo.aktlocaldata);
current_procinfo.Free;
current_procinfo:=nil;
list.concat(Tai_symbol_end.Createname(labelname));
end;
procedure thlcgxtensa.record_generated_code_for_procdef(pd : tprocdef; code,
data : TAsmList);
var
alt : TAsmListType;
begin
{ Xtensa needs the data before the subroutine }
if assigned(data) and
(not data.empty) then
begin
data.Concat(tai_align.Create(4));
code.insertlist(data);
end;
inherited record_generated_code_for_procdef(pd,code,nil);
end;
begin
chlcgobj:=thlcgxtensa;
create_hlcodegen:=@create_hlcodegen_cpu;
end.
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