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124 lines
4.2 KiB
ObjectPascal
124 lines
4.2 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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hlcgx86;
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type
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thlcgcpu = class(thlcgx86)
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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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globtype,globals,verbose,
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fmodule,systems,
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aasmbase,aasmtai,aasmcpu,
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symconst,
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hlcgobj,
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cgbase,cgutils,cgobj,cpubase,cgcpu,cpupi;
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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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href : treference;
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sym : tasmsymbol;
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r : treference;
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begin
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if not(procdef.proctypeoption in [potype_function,potype_procedure]) then
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Internalerror(200006137);
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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(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 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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{ set param1 interface to self }
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g_adjust_self_value(list,procdef,ioffset);
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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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if (procdef.extnumber=$ffff) then
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Internalerror(2000061301);
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{ load vmt from first parameter }
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{ win64 uses a different abi }
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if x86_64_use_ms_abi(procdef.proccalloption) then
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reference_reset_base(href,voidpointertype,NR_RCX,0,ctempposinvalid,sizeof(pint),[])
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else
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reference_reset_base(href,voidpointertype,NR_RDI,0,ctempposinvalid,sizeof(pint),[]);
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cg.a_load_ref_reg(list,OS_ADDR,OS_ADDR,href,NR_RAX);
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{ jmp *vmtoffs(%eax) ; method offs }
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reference_reset_base(href,voidpointertype,NR_RAX,tobjectdef(procdef.struct).vmtmethodoffset(procdef.extnumber),ctempposinvalid,sizeof(pint),[]);
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list.concat(taicpu.op_ref(A_JMP,S_Q,href));
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end
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else
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begin
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sym:=current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION);
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reference_reset_symbol(r,sym,0,sizeof(pint),[]);
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if (cs_create_pic in current_settings.moduleswitches) and
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{ darwin/x86_64's assembler doesn't want @PLT after call symbols }
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not(target_info.system in systems_darwin) then
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r.refaddr:=addr_pic
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else
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r.refaddr:=addr_full;
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list.concat(taicpu.op_ref(A_JMP,S_NO,r));
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end;
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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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