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120 lines
4.1 KiB
ObjectPascal
120 lines
4.1 KiB
ObjectPascal
{
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Copyright (c) 2002 by Florian Klaempfl
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Implements the ARM specific part of call nodes
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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 narmcal;
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{$i fpcdefs.inc}
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interface
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uses
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symdef,ncal,ncgcal;
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type
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tarmcallnode = class(tcgcallnode)
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procedure gen_syscall_para(para: tcallparanode); override;
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procedure set_result_location(realresdef: tstoreddef);override;
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public
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procedure do_syscall;override;
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end;
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implementation
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uses
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verbose,globtype,globals,aasmdata,aasmtai,
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symconst,symtype,symbase,symsym,symcpu,parabase,paramgr,
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cgbase,cgobj,cgutils,cpuinfo,cpubase,cutils,
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ncgutil,tgobj,nld,
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systems;
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procedure tarmcallnode.gen_syscall_para(para: tcallparanode);
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begin
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{ lib parameter has no special type but proccalloptions must be a syscall }
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para.left:=cloadnode.create(tcpuprocdef(procdefinition).libsym,tcpuprocdef(procdefinition).libsym.owner);
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end;
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procedure tarmcallnode.do_syscall;
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var
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tmpref: treference;
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begin
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case target_info.system of
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system_arm_aros:
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begin
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if (po_syscall_baselast in tprocdef(procdefinition).procoptions) then
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begin
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current_asmdata.CurrAsmList.concat(tai_comment.create(strpnew('AROS SysCall')));
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cg.getcpuregister(current_asmdata.CurrAsmList,NR_R12);
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get_syscall_call_ref(tmpref,NR_R12);
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cg.a_load_ref_reg(current_asmdata.CurrAsmList,OS_ADDR,OS_ADDR,tmpref,NR_R12);
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cg.a_call_reg(current_asmdata.CurrAsmList,NR_R12);
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cg.ungetcpuregister(current_asmdata.CurrAsmList,NR_R12);
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exit;
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end;
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internalerror(2016110601);
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end;
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else
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internalerror(2016110602);
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end;
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end;
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procedure tarmcallnode.set_result_location(realresdef: tstoreddef);
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begin
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if (realresdef.typ=floatdef) and
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(target_info.abi<>abi_eabihf) and
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(procdefinition.proccalloption<>pocall_hardfloat) and
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((cs_fp_emulation in current_settings.moduleswitches) or
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(current_settings.fputype in [fpu_vfpv2,fpu_vfpv3,fpu_vfpv4,fpu_vfpv3_d16,fpu_fpv4_s16])) then
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begin
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{ keep the fpu values in integer registers for now, the code
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generator will move them to memory or an mmregister when necessary
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(avoids double moves in case a function result is assigned to
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another function result, or passed as a parameter) }
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case retloc.size of
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OS_32,
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OS_F32:
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location_allocate_register(current_asmdata.CurrAsmList,location,s32inttype,false);
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OS_64,
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OS_F64:
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location_allocate_register(current_asmdata.CurrAsmList,location,s64inttype,false);
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else
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internalerror(2010053008);
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end
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end
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else if (resultdef.typ=floatdef) and
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(location.loc=LOC_REGISTER) and
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(current_settings.fputype in [fpu_fpa,fpu_fpa10,fpu_fpa11]) then
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begin
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location_reset_ref(location,LOC_REFERENCE,location.size,resultdef.alignment,[]);
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tg.gethltemp(current_asmdata.CurrAsmList,resultdef,resultdef.size,tt_normal,location.reference);
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end
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else
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inherited;
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end;
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begin
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ccallnode:=tarmcallnode;
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end.
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