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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;
{$i fpcdefs.inc}
interface
uses
aasmdata,
symdef,
hlcgx86;
type
thlcgcpu = class(thlcgx86)
procedure g_intf_wrapper(list: TAsmList; procdef: tprocdef; const labelname: string; ioffset: longint);override;
end;
implementation
uses
globtype,globals,verbose,
fmodule,systems,
aasmbase,aasmtai,aasmcpu,
symconst,
hlcgobj,
cgbase,cgutils,cgobj,cpubase,cgcpu,cpupi;
procedure thlcgcpu.g_intf_wrapper(list: TAsmList; procdef: tprocdef; const labelname: string; ioffset: longint);
var
make_global : boolean;
href : treference;
sym : tasmsymbol;
r : treference;
begin
if not(procdef.proctypeoption in [potype_function,potype_procedure]) then
Internalerror(200006137);
if not assigned(procdef.struct) or
(procdef.procoptions*[po_classmethod, po_staticmethod,
po_methodpointer, po_interrupt, po_iocheck]<>[]) then
Internalerror(200006138);
if procdef.owner.symtabletype<>ObjectSymtable then
Internalerror(200109191);
make_global:=false;
if (not current_module.is_unit) or create_smartlink or
(procdef.owner.defowner.owner.symtabletype=globalsymtable) then
make_global:=true;
if make_global then
List.concat(Tai_symbol.Createname_global(labelname,AT_FUNCTION,0,procdef))
else
List.concat(Tai_symbol.Createname_hidden(labelname,AT_FUNCTION,0,procdef));
{ set param1 interface to self }
g_adjust_self_value(list,procdef,ioffset);
if (po_virtualmethod in procdef.procoptions) and
not is_objectpascal_helper(procdef.struct) then
begin
if (procdef.extnumber=$ffff) then
Internalerror(2000061301);
{ load vmt from first paramter }
{ win64 uses a different abi }
if x86_64_use_ms_abi(procdef.proccalloption) then
reference_reset_base(href,voidpointertype,NR_RCX,0,ctempposinvalid,sizeof(pint),[])
else
reference_reset_base(href,voidpointertype,NR_RDI,0,ctempposinvalid,sizeof(pint),[]);
cg.a_load_ref_reg(list,OS_ADDR,OS_ADDR,href,NR_RAX);
{ jmp *vmtoffs(%eax) ; method offs }
reference_reset_base(href,voidpointertype,NR_RAX,tobjectdef(procdef.struct).vmtmethodoffset(procdef.extnumber),ctempposinvalid,sizeof(pint),[]);
list.concat(taicpu.op_ref(A_JMP,S_Q,href));
end
else
begin
sym:=current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION);
reference_reset_symbol(r,sym,0,sizeof(pint),[]);
if (cs_create_pic in current_settings.moduleswitches) and
{ darwin/x86_64's assembler doesn't want @PLT after call symbols }
not(target_info.system in systems_darwin) then
r.refaddr:=addr_pic
else
r.refaddr:=addr_full;
list.concat(taicpu.op_ref(A_JMP,S_NO,r));
end;
List.concat(Tai_symbol_end.Createname(labelname));
end;
procedure create_hlcodegen_cpu;
begin
hlcg:=thlcgcpu.create;
create_codegen;
end;
begin
chlcgobj:=thlcgcpu;
create_hlcodegen:=@create_hlcodegen_cpu;
end.
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