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49f93b4464
'option dosseg'. This allows us more flexibility in setting up the segment order the way we like. git-svn-id: trunk@27958 -
353 lines
10 KiB
ObjectPascal
353 lines
10 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Peter Vreman
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This unit implements support import,export,link routines
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for the (i8086) MS-DOS target
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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 t_msdos;
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{$i fpcdefs.inc}
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{$define USE_LINKER_WLINK}
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interface
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implementation
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uses
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SysUtils,
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cutils,cfileutl,cclasses,
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globtype,globals,systems,verbose,script,
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fmodule,i_msdos,
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link,aasmbase;
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type
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{ Borland TLINK support }
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TExternalLinkerMsDosTLink=class(texternallinker)
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private
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Function WriteResponseFile(isdll:boolean) : Boolean;
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public
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constructor Create;override;
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procedure SetDefaultInfo;override;
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function MakeExecutable:boolean;override;
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end;
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{ the ALINK linker from http://alink.sourceforge.net/ }
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TExternalLinkerMsDosALink=class(texternallinker)
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private
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Function WriteResponseFile(isdll:boolean) : Boolean;
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public
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constructor Create;override;
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procedure SetDefaultInfo;override;
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function MakeExecutable:boolean;override;
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end;
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{ the (Open) Watcom linker }
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TExternalLinkerMsDosWLink=class(texternallinker)
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private
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Function WriteResponseFile(isdll:boolean) : Boolean;
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public
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constructor Create;override;
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procedure SetDefaultInfo;override;
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function MakeExecutable:boolean;override;
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end;
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{****************************************************************************
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TExternalLinkerMsDosTLink
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****************************************************************************}
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Constructor TExternalLinkerMsDosTLink.Create;
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begin
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Inherited Create;
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{ allow duplicated libs (PM) }
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SharedLibFiles.doubles:=true;
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StaticLibFiles.doubles:=true;
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end;
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procedure TExternalLinkerMsDosTLink.SetDefaultInfo;
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begin
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with Info do
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begin
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ExeCmd[1]:='tlink $OPT $RES';
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end;
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end;
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Function TExternalLinkerMsDosTLink.WriteResponseFile(isdll:boolean) : Boolean;
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Var
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linkres : TLinkRes;
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s : string;
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begin
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WriteResponseFile:=False;
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{ Open link.res file }
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LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
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{ Add all options to link.res instead of passing them via command line:
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DOS command line is limited to 126 characters! }
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{ add objectfiles, start with prt0 always }
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LinkRes.Add(GetShortName(FindObjectFile('prt0','',false)) + ' +');
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while not ObjectFiles.Empty do
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begin
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s:=ObjectFiles.GetFirst;
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if s<>'' then
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LinkRes.Add(GetShortName(s) + ' +');
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end;
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LinkRes.Add(', ' + maybequoted(current_module.exefilename));
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{ Write and Close response }
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linkres.writetodisk;
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LinkRes.Free;
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WriteResponseFile:=True;
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end;
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function TExternalLinkerMsDosTLink.MakeExecutable:boolean;
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var
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binstr,
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cmdstr : TCmdStr;
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success : boolean;
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begin
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if not(cs_link_nolink in current_settings.globalswitches) then
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Message1(exec_i_linking,current_module.exefilename);
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{ Write used files and libraries and our own tlink script }
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WriteResponsefile(false);
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{ Call linker }
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SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
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Replace(cmdstr,'$RES','@'+maybequoted(outputexedir+Info.ResName));
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Replace(cmdstr,'$OPT',Info.ExtraOptions);
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success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
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{ Remove ReponseFile }
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if (success) and not(cs_link_nolink in current_settings.globalswitches) then
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DeleteFile(outputexedir+Info.ResName);
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MakeExecutable:=success; { otherwise a recursive call to link method }
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end;
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{****************************************************************************
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TExternalLinkerMsDosALink
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****************************************************************************}
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{ TExternalLinkerMsDosALink }
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function TExternalLinkerMsDosALink.WriteResponseFile(isdll: boolean): Boolean;
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Var
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linkres : TLinkRes;
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s : string;
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begin
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WriteResponseFile:=False;
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{ Open link.res file }
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LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
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{ Add all options to link.res instead of passing them via command line:
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DOS command line is limited to 126 characters! }
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{ add objectfiles, start with prt0 always }
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LinkRes.Add(maybequoted(FindObjectFile('prt0','',false)));
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while not ObjectFiles.Empty do
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begin
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s:=ObjectFiles.GetFirst;
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if s<>'' then
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LinkRes.Add(maybequoted(s));
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end;
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LinkRes.Add('-oEXE');
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LinkRes.Add('-o ' + maybequoted(current_module.exefilename));
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{ Write and Close response }
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linkres.writetodisk;
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LinkRes.Free;
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WriteResponseFile:=True;
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end;
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constructor TExternalLinkerMsDosALink.Create;
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begin
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Inherited Create;
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{ allow duplicated libs (PM) }
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SharedLibFiles.doubles:=true;
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StaticLibFiles.doubles:=true;
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end;
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procedure TExternalLinkerMsDosALink.SetDefaultInfo;
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begin
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with Info do
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begin
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ExeCmd[1]:='alink $OPT $RES';
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end;
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end;
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function TExternalLinkerMsDosALink.MakeExecutable: boolean;
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var
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binstr,
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cmdstr : TCmdStr;
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success : boolean;
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begin
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if not(cs_link_nolink in current_settings.globalswitches) then
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Message1(exec_i_linking,current_module.exefilename);
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{ Write used files and libraries and our own tlink script }
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WriteResponsefile(false);
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{ Call linker }
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SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
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Replace(cmdstr,'$RES','@'+maybequoted(outputexedir+Info.ResName));
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Replace(cmdstr,'$OPT',Info.ExtraOptions);
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success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
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{ Remove ReponseFile }
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if (success) and not(cs_link_nolink in current_settings.globalswitches) then
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DeleteFile(outputexedir+Info.ResName);
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MakeExecutable:=success; { otherwise a recursive call to link method }
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end;
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{****************************************************************************
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TExternalLinkerMsDosWLink
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****************************************************************************}
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{ TExternalLinkerMsDosWLink }
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function TExternalLinkerMsDosWLink.WriteResponseFile(isdll: boolean): Boolean;
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Var
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linkres : TLinkRes;
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s : string;
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begin
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WriteResponseFile:=False;
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{ Open link.res file }
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LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
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{ Add all options to link.res instead of passing them via command line:
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DOS command line is limited to 126 characters! }
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LinkRes.Add('option quiet');
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if paratargetdbg in [dbg_dwarf2,dbg_dwarf3,dbg_dwarf4] then
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LinkRes.Add('debug dwarf');
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{ add objectfiles, start with prt0 always }
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case current_settings.x86memorymodel of
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mm_tiny: LinkRes.Add('file ' + maybequoted(FindObjectFile('prt0t','',false)));
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mm_small: LinkRes.Add('file ' + maybequoted(FindObjectFile('prt0s','',false)));
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mm_medium: LinkRes.Add('file ' + maybequoted(FindObjectFile('prt0m','',false)));
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mm_compact: LinkRes.Add('file ' + maybequoted(FindObjectFile('prt0c','',false)));
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mm_large: LinkRes.Add('file ' + maybequoted(FindObjectFile('prt0l','',false)));
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mm_huge: LinkRes.Add('file ' + maybequoted(FindObjectFile('prt0h','',false)));
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end;
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while not ObjectFiles.Empty do
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begin
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s:=ObjectFiles.GetFirst;
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if s<>'' then
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LinkRes.Add('file ' + maybequoted(s));
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end;
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while not StaticLibFiles.Empty do
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begin
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s:=StaticLibFiles.GetFirst;
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if s<>'' then
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LinkRes.Add('library '+MaybeQuoted(s));
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end;
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if apptype=app_com then
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LinkRes.Add('format dos com')
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else
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LinkRes.Add('format dos');
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if current_settings.x86memorymodel=mm_tiny then
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LinkRes.Add('order clname CODE clname DATA clname BSS')
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else
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LinkRes.Add('order clname CODE clname BEGDATA segment _NULL segment _AFTERNULL clname DATA clname BSS clname STACK');
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if (cs_link_map in current_settings.globalswitches) then
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LinkRes.Add('option map='+maybequoted(ChangeFileExt(current_module.exefilename,'.map')));
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LinkRes.Add('name ' + maybequoted(current_module.exefilename));
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{ Write and Close response }
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linkres.writetodisk;
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LinkRes.Free;
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WriteResponseFile:=True;
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end;
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constructor TExternalLinkerMsDosWLink.Create;
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begin
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Inherited Create;
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{ allow duplicated libs (PM) }
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SharedLibFiles.doubles:=true;
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StaticLibFiles.doubles:=true;
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end;
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procedure TExternalLinkerMsDosWLink.SetDefaultInfo;
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begin
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with Info do
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begin
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ExeCmd[1]:='wlink $OPT $RES';
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end;
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end;
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function TExternalLinkerMsDosWLink.MakeExecutable: boolean;
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var
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binstr,
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cmdstr : TCmdStr;
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success : boolean;
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begin
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if not(cs_link_nolink in current_settings.globalswitches) then
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Message1(exec_i_linking,current_module.exefilename);
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{ Write used files and libraries and our own tlink script }
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WriteResponsefile(false);
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{ Call linker }
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SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
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Replace(cmdstr,'$RES','@'+maybequoted(outputexedir+Info.ResName));
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Replace(cmdstr,'$OPT',Info.ExtraOptions);
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success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
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{ Remove ReponseFile }
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if (success) and not(cs_link_nolink in current_settings.globalswitches) then
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DeleteFile(outputexedir+Info.ResName);
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MakeExecutable:=success; { otherwise a recursive call to link method }
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end;
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{*****************************************************************************
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Initialize
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*****************************************************************************}
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initialization
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{$if defined(USE_LINKER_TLINK)}
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RegisterLinker(ld_msdos,TExternalLinkerMsDosTLink);
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{$elseif defined(USE_LINKER_ALINK)}
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RegisterLinker(ld_msdos,TExternalLinkerMsDosALink);
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{$elseif defined(USE_LINKER_WLINK)}
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RegisterLinker(ld_msdos,TExternalLinkerMsDosWLink);
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{$else}
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{$fatal no linker defined}
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{$endif}
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RegisterTarget(system_i8086_msdos_info);
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end.
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