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@@ -0,0 +1,772 @@
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+{
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+ This unit implements support import,export,link routines
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+ for the (arm) GameBoy Advance target
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+
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+ Copyright (c) 2001-2002 by Peter Vreman
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+
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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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+
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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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+
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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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+}
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+unit t_nds;
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+
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+{$i fpcdefs.inc}
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+
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+interface
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+
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+
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+implementation
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+
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+ uses
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+ SysUtils,
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+ cutils,cfileutils,cclasses,
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+ globtype,globals,systems,verbose,script,fmodule,i_nds,link;
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+
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+ type
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+ TlinkerNDS=class(texternallinker)
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+ private
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+ Function WriteResponseFile: 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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+
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+
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+{*****************************************************************************
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+ TLINKERNDS
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+*****************************************************************************}
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+
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+Constructor TLinkerNDS.Create;
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+begin
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+ Inherited Create;
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+ SharedLibFiles.doubles:=true;
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+ StaticLibFiles.doubles:=true;
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+ // set arm9 as default apptype
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+ if (apptype <> app_arm9) or (apptype <> app_arm7) then
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+ apptype := app_arm9;
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+end;
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+
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+
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+procedure TLinkerNDS.SetDefaultInfo;
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+begin
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+ with Info do
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+ begin
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+ ExeCmd[1]:='ld -g $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -L. -o $EXE -T $RES';
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+ end;
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+end;
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+
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+
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+Function TLinkerNDS.WriteResponseFile: Boolean;
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+Var
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+ linkres : TLinkRes;
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+ i : longint;
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+ HPath : TStringListItem;
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+ s,s1,s2 : string;
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+ prtobj,
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+ cprtobj : string[80];
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+ linklibc,
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+ linklibgcc : boolean;
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+ found1,
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+ found2 : boolean;
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+begin
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+ WriteResponseFile:=False;
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+ linklibc:=(SharedLibFiles.Find('c')<>nil);
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+ linklibgcc:=(SharedLibFiles.Find('gcc')<>nil);
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+
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+ case apptype of
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+ app_arm9:
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+ begin
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+ prtobj:='prt09';
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+ cprtobj:='cprt09';
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+ end;
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+ app_arm7:
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+ begin
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+ prtobj:='prt07';
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+ cprtobj:='cprt07';
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+ end;
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+ end;
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+
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+ if (linklibc or linklibgcc) then
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+ prtobj:=cprtobj;
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+
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+ { Open link.res file }
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+ LinkRes:=TLinkRes.Create(outputexedir+Info.ResName);
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+
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+ { Write path to search libraries }
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+ HPath:=TStringListItem(current_module.locallibrarysearchpath.First);
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+ while assigned(HPath) do
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+ begin
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+ s:=HPath.Str;
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+ if (cs_link_on_target in current_settings.globalswitches) then
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+ s:=ScriptFixFileName(s);
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+ LinkRes.Add('-L'+s);
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+ HPath:=TStringListItem(HPath.Next);
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+ end;
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+ HPath:=TStringListItem(LibrarySearchPath.First);
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+ while assigned(HPath) do
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+ begin
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+ s:=HPath.Str;
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+ if s<>'' then
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+ LinkRes.Add('SEARCH_DIR('+(maybequoted(s))+')');
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+ HPath:=TStringListItem(HPath.Next);
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+ end;
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+
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+ LinkRes.Add('INPUT (');
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+ { add objectfiles, start with prt0 always }
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+ //s:=FindObjectFile('prt0','',false);
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+ if prtobj<>'' then
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+ s:=FindObjectFile(prtobj,'',false);
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+ LinkRes.AddFileName(s);
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+ { try to add crti and crtbegin if linking to C }
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+ if linklibc then
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+ begin
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+ //QUA C'E' LA GUFECCHIA!!!!
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+ if librarysearchpath.FindFile('crti.o',false,s) then
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+ LinkRes.AddFileName(s);
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+ end;
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+ if linklibgcc then
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+ begin
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+ //QUA C'E' LA GUFECCHIA!!!!
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+ if librarysearchpath.FindFile('crtbegin.o',false,s) then
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+ LinkRes.AddFileName(s);
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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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+ begin
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+ { vlink doesn't use SEARCH_DIR for object files }
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+ if not(cs_link_on_target in current_settings.globalswitches) then
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+ s:=FindObjectFile(s,'',false);
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+ LinkRes.AddFileName((maybequoted(s)));
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+ end;
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+ end;
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+
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+ { Write staticlibraries }
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+ if not StaticLibFiles.Empty then
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+ begin
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+ { vlink doesn't need, and doesn't support GROUP }
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+ if (cs_link_on_target in current_settings.globalswitches) then
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+ begin
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+ LinkRes.Add(')');
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+ LinkRes.Add('GROUP(');
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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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+ LinkRes.AddFileName((maybequoted(s)));
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+ end;
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+ end;
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+
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+ if (cs_link_on_target in current_settings.globalswitches) then
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+ begin
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+ LinkRes.Add(')');
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+
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+ { Write sharedlibraries like -l<lib>, also add the needed dynamic linker
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+ here to be sure that it gets linked this is needed for glibc2 systems (PFV) }
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+ linklibc:=false;
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+ linklibgcc:=false;
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+ while not SharedLibFiles.Empty do
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+ begin
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+ S:=SharedLibFiles.GetFirst;
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+ if s<>'c' then
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+ begin
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+ i:=Pos(target_info.sharedlibext,S);
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+ if i>0 then
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+ Delete(S,i,255);
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+ LinkRes.Add('-l'+s);
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+ end
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+ else
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+ begin
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+ LinkRes.Add('-l'+s);
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+ linklibc:=true;
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+ linklibgcc:=true;
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+ end;
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+ end;
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+ { be sure that libc&libgcc is the last lib }
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+ if linklibgcc then
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+ begin
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+ LinkRes.Add('-lgcc');
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+ end;
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+ if linklibc then
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+ begin
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+ LinkRes.Add('-lc');
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+ end;
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+ end
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+ else
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+ begin
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+ while not SharedLibFiles.Empty do
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+ begin
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+ S:=SharedLibFiles.GetFirst;
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+ LinkRes.Add('lib'+s+target_info.staticlibext);
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+ end;
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+ LinkRes.Add(')');
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+ end;
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+
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+ { objects which must be at the end }
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+ if linklibgcc then
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+ begin
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+ found1:=librarysearchpath.FindFile('crtend.o',false,s1);
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+ if found1 then
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+ begin
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+ LinkRes.Add('INPUT(');
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+ if found1 then
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+ LinkRes.AddFileName(s1);
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+ LinkRes.Add(')');
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+ end;
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+ end;
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+ if linklibc then
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+ begin
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+ found2:=librarysearchpath.FindFile('crtn.o',false,s2);
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+ if found2 then
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+ begin
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+ LinkRes.Add('INPUT(');
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+ if found2 then
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+ LinkRes.AddFileName(s2);
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+ LinkRes.Add(')');
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+ end;
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+ end;
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+
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+ with linkres do
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+ begin
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+ if apptype=app_arm9 then //ARM9
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+ begin
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+ add('OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")');
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+ add('OUTPUT_ARCH(arm)');
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+ add('ENTRY(_start)');
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+ add('');
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+ add('MEMORY {');
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+ add('');
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+ add(' rom : ORIGIN = 0x08000000, LENGTH = 32M');
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+ add(' ewram : ORIGIN = 0x02000000, LENGTH = 4M - 4k');
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+ add(' dtcm : ORIGIN = 0x0b000000, LENGTH = 16K');
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+ add(' itcm : ORIGIN = 0x01000000, LENGTH = 32K');
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+ add('}');
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+ add('');
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+ add('__itcm_start = ORIGIN(itcm);');
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+ add('__ewram_end = ORIGIN(ewram) + LENGTH(ewram);');
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+ add('__eheap_end = ORIGIN(ewram) + LENGTH(ewram);');
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+ add('__dtcm_start = ORIGIN(dtcm);');
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+ add('__dtcm_top = ORIGIN(dtcm) + LENGTH(dtcm);');
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+ add('__irq_flags = __dtcm_top - 0x08;');
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+ add('__irq_vector = __dtcm_top - 0x04;');
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+ add('');
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+ add('__sp_svc = __dtcm_top - 0x100;');
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+ add('__sp_irq = __sp_svc - 0x100;');
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+ add('__sp_usr = __sp_irq - 0x100;');
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+ add('');
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+ add('SECTIONS');
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+ add('{');
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+ add(' .init :');
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+ add(' {');
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+ add(' __text_start = . ;');
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+ add(' KEEP (*(.init))');
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+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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+ add(' } >ewram = 0xff');
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+ add('');
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+ add(' .plt : { *(.plt) } >ewram = 0xff');
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+ add('');
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+ add(' .text : /* ALIGN (4): */');
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+ add(' {');
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+ add(' *(EXCLUDE_FILE (*.itcm*) .text)');
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+ add('');
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+ add(' *(.text.*)');
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+ add(' *(.stub)');
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+ add(' /* .gnu.warning sections are handled specially by elf32.em. */');
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+ add(' *(.gnu.warning)');
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+ add(' *(.gnu.linkonce.t*)');
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+ add(' *(.glue_7)');
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+ add(' *(.glue_7t)');
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+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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+ add(' } >ewram = 0xff');
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+ add('');
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+ add(' .fini :');
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+ add(' {');
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+ add(' KEEP (*(.fini))');
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+ add(' } >ewram =0xff');
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+ add('');
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+ add(' __text_end = . ;');
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+ add('');
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+ add(' .rodata :');
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+ add(' {');
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+ add(' *(.rodata)');
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+ add(' *all.rodata*(*)');
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+ add(' *(.roda)');
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+ add(' *(.rodata.*)');
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+ add(' *(.gnu.linkonce.r*)');
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+ add(' SORT(CONSTRUCTORS)');
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+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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+ add(' } >ewram = 0xff');
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+ add('');
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+ add(' .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >ewram');
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+ add(' __exidx_start = .;');
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+ add(' .ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } >ewram');
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+ add(' __exidx_end = .;');
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+ add(' /* Ensure the __preinit_array_start label is properly aligned. We');
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|
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|
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|
|
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|
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|
|
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|
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|
|
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|
+ add(' KEEP (*(.dtors))');
|
|
|
|
|
+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
|
|
|
|
|
+ add(' } >iwram = 0xff');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' .eh_frame :');
|
|
|
|
|
+ add(' {');
|
|
|
|
|
+ add(' KEEP (*(.eh_frame))');
|
|
|
|
|
+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
|
|
|
|
|
+ add(' } >iwram = 0xff');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' .gcc_except_table :');
|
|
|
|
|
+ add(' {');
|
|
|
|
|
+ add(' *(.gcc_except_table)');
|
|
|
|
|
+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
|
|
|
|
|
+ add(' } >iwram = 0xff');
|
|
|
|
|
+ add(' .jcr : { KEEP (*(.jcr)) } >iwram = 0');
|
|
|
|
|
+ add(' .got : { *(.got.plt) *(.got) } >iwram = 0');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' .iwram ALIGN(4) :');
|
|
|
|
|
+ add(' {');
|
|
|
|
|
+ add(' __iwram_start = ABSOLUTE(.) ;');
|
|
|
|
|
+ add(' *(.iwram)');
|
|
|
|
|
+ add(' *iwram.*(.text)');
|
|
|
|
|
+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
|
|
|
|
|
+ add(' __iwram_end = ABSOLUTE(.) ;');
|
|
|
|
|
+ add(' } >iwram = 0xff');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' .data ALIGN(4) : {');
|
|
|
|
|
+ add(' __data_start = ABSOLUTE(.);');
|
|
|
|
|
+ add(' *(.data)');
|
|
|
|
|
+ add(' *(.data.*)');
|
|
|
|
|
+ add(' *(.gnu.linkonce.d*)');
|
|
|
|
|
+ add(' *(.fpc*)');
|
|
|
|
|
+ add(' CONSTRUCTORS');
|
|
|
|
|
+ add(' . = ALIGN(4);');
|
|
|
|
|
+ add(' __data_end = ABSOLUTE(.) ;');
|
|
|
|
|
+ add(' } >iwram = 0xff');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' .bss ALIGN(4) :');
|
|
|
|
|
+ add(' {');
|
|
|
|
|
+ add(' __bss_start = ABSOLUTE(.);');
|
|
|
|
|
+ add(' __bss_start__ = ABSOLUTE(.);');
|
|
|
|
|
+ add(' *(.dynbss)');
|
|
|
|
|
+ add(' *(.gnu.linkonce.b*)');
|
|
|
|
|
+ add(' *(.bss*)');
|
|
|
|
|
+ add(' *(COMMON)');
|
|
|
|
|
+ add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
|
|
|
|
|
+ add(' } >iwram');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' __bss_end = . ;');
|
|
|
|
|
+ add(' __bss_end__ = . ;');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' _end = . ;');
|
|
|
|
|
+ add(' __end__ = . ;');
|
|
|
|
|
+ add(' PROVIDE (end = _end);');
|
|
|
|
|
+ add('');
|
|
|
|
|
+ add(' /* Stabs debugging sections. */');
|
|
|
|
|
+ add(' .stab 0 : { *(.stab) }');
|
|
|
|
|
+ add(' .stabstr 0 : { *(.stabstr) }');
|
|
|
|
|
+ add(' .stab.excl 0 : { *(.stab.excl) }');
|
|
|
|
|
+ add(' .stab.exclstr 0 : { *(.stab.exclstr) }');
|
|
|
|
|
+ add(' .stab.index 0 : { *(.stab.index) }');
|
|
|
|
|
+ add(' .stab.indexstr 0 : { *(.stab.indexstr) }');
|
|
|
|
|
+ add(' .comment 0 : { *(.comment) }');
|
|
|
|
|
+ add(' /* DWARF debug sections.');
|
|
|
|
|
+ add(' Symbols in the DWARF debugging sections are relative to the beginning');
|
|
|
|
|
+ add(' of the section so we begin them at 0. */');
|
|
|
|
|
+ add(' /* DWARF 1 */');
|
|
|
|
|
+ add(' .debug 0 : { *(.debug) }');
|
|
|
|
|
+ add(' .line 0 : { *(.line) }');
|
|
|
|
|
+ add(' /* GNU DWARF 1 extensions */');
|
|
|
|
|
+ add(' .debug_srcinfo 0 : { *(.debug_srcinfo) }');
|
|
|
|
|
+ add(' .debug_sfnames 0 : { *(.debug_sfnames) }');
|
|
|
|
|
+ add(' /* DWARF 1.1 and DWARF 2 */');
|
|
|
|
|
+ add(' .debug_aranges 0 : { *(.debug_aranges) }');
|
|
|
|
|
+ add(' .debug_pubnames 0 : { *(.debug_pubnames) }');
|
|
|
|
|
+ add(' /* DWARF 2 */');
|
|
|
|
|
+ add(' .debug_info 0 : { *(.debug_info) }');
|
|
|
|
|
+ add(' .debug_abbrev 0 : { *(.debug_abbrev) }');
|
|
|
|
|
+ add(' .debug_line 0 : { *(.debug_line) }');
|
|
|
|
|
+ add(' .debug_frame 0 : { *(.debug_frame) }');
|
|
|
|
|
+ add(' .debug_str 0 : { *(.debug_str) }');
|
|
|
|
|
+ add(' .debug_loc 0 : { *(.debug_loc) }');
|
|
|
|
|
+ add(' .debug_macinfo 0 : { *(.debug_macinfo) }');
|
|
|
|
|
+ add(' /* SGI/MIPS DWARF 2 extensions */');
|
|
|
|
|
+ add(' .debug_weaknames 0 : { *(.debug_weaknames) }');
|
|
|
|
|
+ add(' .debug_funcnames 0 : { *(.debug_funcnames) }');
|
|
|
|
|
+ add(' .debug_typenames 0 : { *(.debug_typenames) }');
|
|
|
|
|
+ add(' .debug_varnames 0 : { *(.debug_varnames) }');
|
|
|
|
|
+ add(' .stack 0x80000 : { _stack = .; *(.stack) }');
|
|
|
|
|
+ add(' /* These must appear regardless of . */');
|
|
|
|
|
+ add('}');
|
|
|
|
|
+ end;
|
|
|
|
|
+ end;
|
|
|
|
|
+
|
|
|
|
|
+{ Write and Close response }
|
|
|
|
|
+ linkres.writetodisk;
|
|
|
|
|
+ linkres.free;
|
|
|
|
|
+
|
|
|
|
|
+ WriteResponseFile:=True;
|
|
|
|
|
+
|
|
|
|
|
+end;
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+function TLinkerNDS.MakeExecutable:boolean;
|
|
|
|
|
+var
|
|
|
|
|
+ binstr : string;
|
|
|
|
|
+ cmdstr : TCmdStr;
|
|
|
|
|
+ success : boolean;
|
|
|
|
|
+ StaticStr,
|
|
|
|
|
+ GCSectionsStr,
|
|
|
|
|
+ DynLinkStr,
|
|
|
|
|
+ StripStr: string;
|
|
|
|
|
+ preName: string;
|
|
|
|
|
+begin
|
|
|
|
|
+ { for future use }
|
|
|
|
|
+ StaticStr:='';
|
|
|
|
|
+ StripStr:='';
|
|
|
|
|
+ DynLinkStr:='';
|
|
|
|
|
+ case apptype of
|
|
|
|
|
+ app_arm9: preName:='.arm9';
|
|
|
|
|
+ app_arm7: preName:='.arm7';
|
|
|
|
|
+ end;
|
|
|
|
|
+
|
|
|
|
|
+ GCSectionsStr:='--gc-sections';
|
|
|
|
|
+ if not(cs_link_nolink in current_settings.globalswitches) then
|
|
|
|
|
+ Message1(exec_i_linking,current_module.exefilename^);
|
|
|
|
|
+
|
|
|
|
|
+{ Write used files and libraries }
|
|
|
|
|
+ WriteResponseFile();
|
|
|
|
|
+
|
|
|
|
|
+{ Call linker }
|
|
|
|
|
+ SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
|
|
|
|
|
+ Replace(cmdstr,'$OPT',Info.ExtraOptions);
|
|
|
|
|
+ if not(cs_link_on_target in current_settings.globalswitches) then
|
|
|
|
|
+ begin
|
|
|
|
|
+ Replace(cmdstr,'$EXE',(maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename^,preName+'.elf')))));
|
|
|
|
|
+ Replace(cmdstr,'$RES',(maybequoted(ScriptFixFileName(outputexedir+Info.ResName))));
|
|
|
|
|
+ Replace(cmdstr,'$STATIC',StaticStr);
|
|
|
|
|
+ Replace(cmdstr,'$STRIP',StripStr);
|
|
|
|
|
+ Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
|
|
|
|
|
+ Replace(cmdstr,'$DYNLINK',DynLinkStr);
|
|
|
|
|
+ end
|
|
|
|
|
+ else
|
|
|
|
|
+ begin
|
|
|
|
|
+ Replace(cmdstr,'$EXE',maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename^,preName+'.elf'))));
|
|
|
|
|
+ Replace(cmdstr,'$RES',maybequoted(ScriptFixFileName(outputexedir+Info.ResName)));
|
|
|
|
|
+ Replace(cmdstr,'$STATIC',StaticStr);
|
|
|
|
|
+ Replace(cmdstr,'$STRIP',StripStr);
|
|
|
|
|
+ Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
|
|
|
|
|
+ Replace(cmdstr,'$DYNLINK',DynLinkStr);
|
|
|
|
|
+ end;
|
|
|
|
|
+ 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 then
|
|
|
|
|
+ begin
|
|
|
|
|
+ success:=DoExec(FindUtil(utilsprefix + 'objcopy'), '-O binary '+
|
|
|
|
|
+ ChangeFileExt(current_module.exefilename^, preName+'.elf') + ' ' +
|
|
|
|
|
+ ChangeFileExt(current_module.exefilename^, preName+target_info.exeext),
|
|
|
|
|
+ true,false);
|
|
|
|
|
+ end;
|
|
|
|
|
+
|
|
|
|
|
+ MakeExecutable:=success; { otherwise a recursive call to link method }
|
|
|
|
|
+end;
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+{*****************************************************************************
|
|
|
|
|
+ Initialize
|
|
|
|
|
+*****************************************************************************}
|
|
|
|
|
+
|
|
|
|
|
+initialization
|
|
|
|
|
+ RegisterExternalLinker(system_arm_nds_info,TLinkerNDS);
|
|
|
|
|
+ RegisterTarget(system_arm_nds_info);
|
|
|
|
|
+end.
|
Legolas