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136 lines
4.1 KiB
ObjectPascal
136 lines
4.1 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 2002 by Florian Klaempfl
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This unit contains the CPU specific part of tprocinfo
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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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{ This unit contains the CPU specific part of tprocinfo. }
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unit cpupi;
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{$i fpcdefs.inc}
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interface
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uses
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cutils,
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procinfo,cpuinfo,psub;
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type
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tarmprocinfo = class(tcgprocinfo)
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{ max. of space need for parameters, currently used by the PowerPC port only }
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maxpushedparasize : aword;
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constructor create(aparent:tprocinfo);override;
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// procedure handle_body_start;override;
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// procedure after_pass1;override;
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procedure allocate_push_parasize(size: longint);override;
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function calc_stackframe_size:longint;override;
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end;
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implementation
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uses
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globtype,globals,systems,
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cpubase,
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aasmtai,
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tgobj,
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symconst,symsym,paramgr;
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constructor tarmprocinfo.create(aparent:tprocinfo);
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begin
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inherited create(aparent);
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maxpushedparasize:=0;
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end;
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(*
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procedure tarmprocinfo.handle_body_start;
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var
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ofs : aword;
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begin
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if not(po_assembler in procdef.procoptions) then
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begin
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{!!!!!!!!
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case target_info.abi of
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abi_powerpc_aix:
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ofs:=align(maxpushedparasize+LinkageAreaSizeAIX,16);
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abi_powerpc_sysv:
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ofs:=align(maxpushedparasize+LinkageAreaSizeSYSV,16);
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end;
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}
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inc(procdef.parast.address_fixup,ofs);
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procdef.localst.address_fixup:=procdef.parast.address_fixup+procdef.parast.datasize;
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end;
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inherited handle_body_start;
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end;
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procedure tarmprocinfo.after_pass1;
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begin
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if not(po_assembler in procdef.procoptions) then
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begin
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if cs_asm_source in aktglobalswitches then
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aktproccode.insert(Tai_comment.Create(strpnew('Parameter copies start at: r1+'+tostr(procdef.parast.address_fixup))));
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if cs_asm_source in aktglobalswitches then
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aktproccode.insert(Tai_comment.Create(strpnew('Locals start at: r1+'+tostr(procdef.localst.address_fixup))));
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firsttemp_offset:=align(procdef.localst.address_fixup+procdef.localst.datasize,16);
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if cs_asm_source in aktglobalswitches then
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aktproccode.insert(Tai_comment.Create(strpnew('Temp. space start: r1+'+tostr(firsttemp_offset))));
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//!!!! tg.setfirsttemp(firsttemp_offset);
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tg.firsttemp:=firsttemp_offset;
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tg.lasttemp:=firsttemp_offset;
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inherited after_pass1;
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end;
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end;
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*)
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procedure tarmprocinfo.allocate_push_parasize(size:longint);
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begin
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if size>maxpushedparasize then
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maxpushedparasize:=size;
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end;
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function tarmprocinfo.calc_stackframe_size:longint;
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begin
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{ more or less copied from cgcpu.pas/g_stackframe_entry }
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if not (po_assembler in procdef.procoptions) then
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result := align(align((31-13+1)*4+(31-14+1)*8,16)+tg.lasttemp,16)
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else
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result := align(tg.lasttemp,16);
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end;
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begin
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cprocinfo:=tarmprocinfo;
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end.
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{
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$Log$
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Revision 1.2 2003-11-02 14:30:03 florian
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* fixed ARM for new reg. allocation scheme
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Revision 1.1 2003/08/20 15:50:13 florian
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* more arm stuff
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}
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