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{
Copyright (c) 1998-2002 by Peter Vreman
This unit implements support import,export,link routines
for the (z80) MSX-DOS target
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 t_msxdos;
{$i fpcdefs.inc}
{$define USE_LINKER_WLINK}
interface
implementation
uses
SysUtils,
cutils,cfileutl,cclasses,
globtype,globals,systems,verbose,cscript,
fmodule,i_msxdos,
link,aasmbase,cpuinfo,ogrel,owar;
const
DefaultOrigin = $100;
type
{ sdld - the sdld linker from the SDCC project ( http://sdcc.sourceforge.net/ ) }
{ vlink - the vlink linker by Frank Wille (http://sun.hasenbraten.de/vlink/ ) }
TLinkerMSXDOS=class(texternallinker)
private
FOrigin: Word;
Function WriteResponseFile_Sdld: Boolean;
Function WriteResponseFile_Vlink: Boolean;
procedure SetDefaultInfo_Sdld;
procedure SetDefaultInfo_Vlink;
function MakeExecutable_Sdld: boolean;
function MakeExecutable_Vlink: boolean;
public
procedure SetDefaultInfo; override;
function MakeExecutable: boolean; override;
procedure InitSysInitUnitName; override;
function postprocessexecutable(const fn : string;isdll:boolean): boolean;
end;
TInternalLinkerMSXDOS=class(tinternallinker)
private
FOrigin: Word;
protected
procedure DefaultLinkScript;override;
function ExecutableFilename:String;override;
public
constructor create;override;
procedure InitSysInitUnitName;override;
function MakeExecutable: boolean; override;
function postprocessexecutable(const fn : string): boolean;
end;
{*****************************************************************************
TLinkerMSXDOS
*****************************************************************************}
function TLinkerMSXDOS.WriteResponseFile_Sdld: Boolean;
Var
linkres : TLinkRes;
s : TCmdStr;
prtobj: string[80];
begin
result:=False;
prtobj:='prt0';
{ Open link.res file }
LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
{ Write the origin (i.e. the program load address) }
LinkRes.Add('-b _CODE='+tostr(FOrigin));
if not (target_info.system in systems_internal_sysinit) and (prtobj <> '') then
begin
s:=FindObjectFile(prtobj,'',false);
LinkRes.AddFileName(s);
end;
while not ObjectFiles.Empty do
begin
s:=ObjectFiles.GetFirst;
if s<>'' then
begin
if not(cs_link_on_target in current_settings.globalswitches) then
s:=FindObjectFile(s,'',false);
LinkRes.AddFileName((maybequoted(s)));
end;
end;
{ Write staticlibraries }
if not StaticLibFiles.Empty then
begin
while not StaticLibFiles.Empty do
begin
S:=StaticLibFiles.GetFirst;
LinkRes.Add('-l'+maybequoted(s));
end;
end;
{ Write and Close response }
linkres.writetodisk;
linkres.free;
result:=True;
end;
function TLinkerMSXDOS.WriteResponseFile_Vlink: Boolean;
Var
linkres : TLinkRes;
s : TCmdStr;
prtobj: string[80];
begin
result:=false;
prtobj:='prt0';
{ Open link.res file }
LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
LinkRes.Add('INPUT (');
if not (target_info.system in systems_internal_sysinit) and (prtobj <> '') then
begin
s:=FindObjectFile(prtobj,'',false);
LinkRes.AddFileName(maybequoted(FixFileName(s)));
end;
while not ObjectFiles.Empty do
begin
s:=ObjectFiles.GetFirst;
if s<>'' then
begin
s:=FindObjectFile(s,'',false);
LinkRes.AddFileName(maybequoted(FixFileName(s)));
end;
end;
while not StaticLibFiles.Empty do
begin
S:=StaticLibFiles.GetFirst;
LinkRes.AddFileName(maybequoted(FixFileName(s)));
end;
LinkRes.Add(')');
with LinkRes do
begin
Add('');
Add('SECTIONS');
Add('{');
Add(' . = 0x'+hexstr(FOrigin,4)+';');
Add(' .text : { *(.text .text.* ) }');
Add(' .data : { *(.data .data.* .rodata .rodata.* .bss .bss.* .fpc.* .stack .stack.* ) }');
Add('}');
end;
{ Write and Close response }
linkres.writetodisk;
linkres.free;
result:=true;
end;
procedure TLinkerMSXDOS.SetDefaultInfo_Sdld;
const
ExeName='sdldz80';
begin
FOrigin:=$100;
with Info do
begin
ExeCmd[1]:=ExeName+' -n $OPT -i $MAP $EXE -f $RES'
end;
end;
procedure TLinkerMSXDOS.SetDefaultInfo_Vlink;
const
ExeName='vlink';
begin
FOrigin:=$100;
with Info do
begin
ExeCmd[1]:=ExeName+' -bihex $GCSECTIONS -e $STARTSYMBOL $STRIP $OPT -o $EXE -T $RES'
end;
end;
procedure TLinkerMSXDOS.SetDefaultInfo;
begin
if not (cs_link_vlink in current_settings.globalswitches) then
SetDefaultInfo_Sdld
else
SetDefaultInfo_Vlink;
end;
function TLinkerMSXDOS.MakeExecutable_Sdld: boolean;
var
binstr,
cmdstr,
mapstr: TCmdStr;
success : boolean;
StaticStr,
//GCSectionsStr,
DynLinkStr,
StripStr,
FixedExeFileName: string;
begin
{ for future use }
StaticStr:='';
StripStr:='';
mapstr:='';
DynLinkStr:='';
FixedExeFileName:=maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,'.ihx')));
if (cs_link_map in current_settings.globalswitches) then
mapstr:='-mw';
{ Write used files and libraries }
WriteResponseFile_Sdld();
{ Call linker }
SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$EXE',FixedExeFileName);
Replace(cmdstr,'$RES',(maybequoted(ScriptFixFileName(outputexedir+Info.ResName))));
Replace(cmdstr,'$STATIC',StaticStr);
Replace(cmdstr,'$STRIP',StripStr);
Replace(cmdstr,'$MAP',mapstr);
//Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
Replace(cmdstr,'$DYNLINK',DynLinkStr);
success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
{ Remove ReponseFile }
if success and not(cs_link_nolink in current_settings.globalswitches) then
DeleteFile(outputexedir+Info.ResName);
{ Post process }
if success and not(cs_link_nolink in current_settings.globalswitches) then
success:=PostProcessExecutable(FixedExeFileName,false);
result:=success; { otherwise a recursive call to link method }
end;
function TLinkerMSXDOS.MakeExecutable_Vlink: boolean;
var
binstr,
cmdstr: TCmdStr;
success: boolean;
GCSectionsStr,
StripStr,
StartSymbolStr,
FixedExeFilename: string;
begin
GCSectionsStr:='-gc-all -mtype';
StripStr:='';
StartSymbolStr:='start';
FixedExeFileName:=maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,'.ihx')));
{ Write used files and libraries }
WriteResponseFile_Vlink();
{ Call linker }
SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$EXE',FixedExeFileName);
Replace(cmdstr,'$RES',(maybequoted(ScriptFixFileName(outputexedir+Info.ResName))));
Replace(cmdstr,'$STRIP',StripStr);
Replace(cmdstr,'$STARTSYMBOL',StartSymbolStr);
Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
{ Remove ReponseFile }
if success and not(cs_link_nolink in current_settings.globalswitches) then
DeleteFile(outputexedir+Info.ResName);
{ Post process }
if success and not(cs_link_nolink in current_settings.globalswitches) then
success:=PostProcessExecutable(FixedExeFileName,false);
result:=success;
end;
function TLinkerMSXDOS.MakeExecutable: boolean;
begin
if not (cs_link_vlink in current_settings.globalswitches) then
result:=MakeExecutable_Sdld
else
result:=MakeExecutable_Vlink;
end;
procedure TLinkerMSXDOS.InitSysInitUnitName;
begin
sysinitunit:='si_prc';
end;
function TLinkerMSXDOS.postprocessexecutable(const fn: string; isdll: boolean): boolean;
begin
result:=DoExec(FindUtil(utilsprefix+'ihxutil'),' -t bin '+fn+' '+maybequoted(ScriptFixFileName(current_module.exefilename)),true,false);
end;
{*****************************************************************************
TInternalLinkerZXSpectrum
*****************************************************************************}
procedure TInternalLinkerMSXDOS.DefaultLinkScript;
var
s : TCmdStr;
prtobj: string[80];
begin
prtobj:='prt0';
if not (target_info.system in systems_internal_sysinit) and (prtobj <> '') then
LinkScript.Concat('READOBJECT ' + maybequoted(FindObjectFile(prtobj,'',false)));
while not ObjectFiles.Empty do
begin
s:=ObjectFiles.GetFirst;
if s<>'' then
begin
if not(cs_link_on_target in current_settings.globalswitches) then
s:=FindObjectFile(s,'',false);
LinkScript.Concat('READOBJECT ' + maybequoted(s));
end;
end;
LinkScript.Concat('GROUP');
{ Write staticlibraries }
if not StaticLibFiles.Empty then
begin
while not StaticLibFiles.Empty do
begin
S:=StaticLibFiles.GetFirst;
if s<>'' then
LinkScript.Concat('READSTATICLIBRARY '+MaybeQuoted(s));
end;
end;
LinkScript.Concat('ENDGROUP');
LinkScript.Concat('IMAGEBASE '+tostr(FOrigin));
LinkScript.Concat('EXESECTION .text');
LinkScript.Concat(' OBJSECTION _CODE');
LinkScript.Concat('ENDEXESECTION');
LinkScript.Concat('EXESECTION .data');
LinkScript.Concat(' OBJSECTION _DATA');
LinkScript.Concat('ENDEXESECTION');
LinkScript.Concat('EXESECTION .bss');
LinkScript.Concat(' OBJSECTION _BSS');
LinkScript.Concat(' OBJSECTION _BSSEND');
LinkScript.Concat(' OBJSECTION _HEAP');
LinkScript.Concat(' OBJSECTION _STACK');
LinkScript.Concat('ENDEXESECTION');
LinkScript.Concat('ENTRYNAME start');
end;
constructor TInternalLinkerMSXDOS.create;
begin
inherited create;
CArObjectReader:=TArObjectReader;
CExeOutput:=TIntelHexExeOutput;
CObjInput:=TRelObjInput;
if ImageBaseSetExplicity then
FOrigin:=ImageBase
else
FOrigin:=DefaultOrigin;
end;
function TInternalLinkerMSXDOS.ExecutableFilename:String;
begin
result:=ChangeFileExt(current_module.exefilename,'.ihx');
end;
procedure TInternalLinkerMSXDOS.InitSysInitUnitName;
begin
sysinitunit:='si_prc';
end;
function TInternalLinkerMSXDOS.MakeExecutable: boolean;
begin
result:=inherited;
{ Post process }
if result and not(cs_link_nolink in current_settings.globalswitches) then
result:=PostProcessExecutable(maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,'.ihx'))));
end;
function TInternalLinkerMSXDOS.postprocessexecutable(const fn: string): boolean;
var
exitcode: longint;
FoundBin: ansistring;
Found: Boolean;
utilexe: TCmdStr;
begin
result:=false;
utilexe:=utilsprefix+'ihxutil'+source_info.exeext;
FoundBin:='';
Found:=false;
if utilsdirectory<>'' then
Found:=FindFile(utilexe,utilsdirectory,false,Foundbin);
if (not Found) then
Found:=FindExe(utilexe,false,Foundbin);
if Found then
begin
exitcode:=RequotedExecuteProcess(foundbin,' -t bin '+fn+' '+maybequoted(ScriptFixFileName(current_module.exefilename)));
result:=exitcode<>0;
end;
end;
{*****************************************************************************
Initialize
*****************************************************************************}
initialization
{$ifdef z80}
RegisterLinker(ld_msxdos,TLinkerMSXDOS);
RegisterLinker(ld_int_msxdos,TInternalLinkerMSXDOS);
RegisterTarget(system_z80_msxdos_info);
{$endif z80}
end.
|