+ initial support for the sdcc-sdld linker for the z80-embedded target

git-svn-id: branches/z80@44602 -

compiler/systems/t_embed.pas

@@ -46,6 +46,18 @@ implementation
           function postprocessexecutable(const fn : string;isdll:boolean):boolean;
        end;
 
+       { TlinkerEmbedded_SdccSdld - the sdld linker from the SDCC project ( http://sdcc.sourceforge.net/ ) }
+
+       TlinkerEmbedded_SdccSdld=class(texternallinker)
+       private
+          Function  WriteResponseFile: Boolean;
+       public
+{          constructor Create; override;}
+          procedure SetDefaultInfo; override;
+          function  MakeExecutable:boolean; override;
+{          function postprocessexecutable(const fn : string;isdll:boolean):boolean;}
+       end;
+
 
 
 {*****************************************************************************
@@ -1801,6 +1813,250 @@ function TLinkerEmbedded.postprocessexecutable(const fn : string;isdll:boolean):
   end;
 
 
+{*****************************************************************************
+                              TlinkerEmbedded_SdccSdld
+*****************************************************************************}
+
+function TlinkerEmbedded_SdccSdld.WriteResponseFile: Boolean;
+  Var
+    linkres  : TLinkRes;
+    i        : longint;
+    HPath    : TCmdStrListItem;
+    s,s1,s2  : TCmdStr;
+    prtobj,
+    cprtobj  : string[80];
+    linklibc : boolean;
+    found1,
+    found2   : boolean;
+  {$if defined(ARM)}
+    LinkStr  : string;
+  {$endif}
+  begin
+    WriteResponseFile:=False;
+    linklibc:=(SharedLibFiles.Find('c')<>nil);
+    prtobj:='prt0';
+    cprtobj:='cprt0';
+    if linklibc then
+      prtobj:=cprtobj;
+
+    { Open link.res file }
+    LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
+
+    { Write path to search libraries }
+(*    HPath:=TCmdStrListItem(current_module.locallibrarysearchpath.First);
+    while assigned(HPath) do
+     begin
+      s:=HPath.Str;
+      if (cs_link_on_target in current_settings.globalswitches) then
+       s:=ScriptFixFileName(s);
+      LinkRes.Add('-L'+s);
+      HPath:=TCmdStrListItem(HPath.Next);
+     end;
+    HPath:=TCmdStrListItem(LibrarySearchPath.First);
+    while assigned(HPath) do
+     begin
+      s:=HPath.Str;
+      if s<>'' then
+       LinkRes.Add('SEARCH_DIR("'+s+'")');
+      HPath:=TCmdStrListItem(HPath.Next);
+     end;
+
+    LinkRes.Add('INPUT (');
+    { add objectfiles, start with prt0 always }*)
+    //s:=FindObjectFile('prt0','',false);
+    if prtobj<>'' then
+      begin
+        s:=FindObjectFile(prtobj,'',false);
+        LinkRes.AddFileName(s);
+      end;
+
+    { try to add crti and crtbegin if linking to C }
+    if linklibc then
+     begin
+       if librarysearchpath.FindFile('crtbegin.o',false,s) then
+        LinkRes.AddFileName(s);
+       if librarysearchpath.FindFile('crti.o',false,s) then
+        LinkRes.AddFileName(s);
+     end;
+
+    while not ObjectFiles.Empty do
+     begin
+      s:=ObjectFiles.GetFirst;
+      if s<>'' then
+       begin
+        { vlink doesn't use SEARCH_DIR for object files }
+        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
+      { vlink doesn't need, and doesn't support GROUP }
+{      if (cs_link_on_target in current_settings.globalswitches) then
+       begin
+        LinkRes.Add(')');
+        LinkRes.Add('GROUP(');
+       end;}
+      while not StaticLibFiles.Empty do
+       begin
+        S:=StaticLibFiles.GetFirst;
+        LinkRes.AddFileName((maybequoted(s)));
+       end;
+     end;
+
+(*    if (cs_link_on_target in current_settings.globalswitches) then
+     begin
+      LinkRes.Add(')');
+
+      { Write sharedlibraries like -l<lib>, also add the needed dynamic linker
+        here to be sure that it gets linked this is needed for glibc2 systems (PFV) }
+      linklibc:=false;
+      while not SharedLibFiles.Empty do
+       begin
+        S:=SharedLibFiles.GetFirst;
+        if s<>'c' then
+         begin
+          i:=Pos(target_info.sharedlibext,S);
+          if i>0 then
+           Delete(S,i,255);
+          LinkRes.Add('-l'+s);
+         end
+        else
+         begin
+          LinkRes.Add('-l'+s);
+          linklibc:=true;
+         end;
+       end;
+      { be sure that libc&libgcc is the last lib }
+      if linklibc then
+       begin
+        LinkRes.Add('-lc');
+        LinkRes.Add('-lgcc');
+       end;
+     end
+    else
+     begin
+      while not SharedLibFiles.Empty do
+       begin
+        S:=SharedLibFiles.GetFirst;
+        LinkRes.Add('lib'+s+target_info.staticlibext);
+       end;
+      LinkRes.Add(')');
+     end;*)
+
+    { objects which must be at the end }
+    (*if linklibc then
+     begin
+       found1:=librarysearchpath.FindFile('crtend.o',false,s1);
+       found2:=librarysearchpath.FindFile('crtn.o',false,s2);
+       if found1 or found2 then
+        begin
+          LinkRes.Add('INPUT(');
+          if found1 then
+           LinkRes.AddFileName(s1);
+          if found2 then
+           LinkRes.AddFileName(s2);
+          LinkRes.Add(')');
+        end;
+     end;*)
+
+    { Write and Close response }
+    linkres.writetodisk;
+    linkres.free;
+
+    WriteResponseFile:=True;
+  end;
+
+procedure TlinkerEmbedded_SdccSdld.SetDefaultInfo;
+  begin
+    with Info do
+     begin
+       ExeCmd[1]:='sdcc-sdld -i $EXE -f $RES'
+       //-g '+platform_select+' $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP $MAP -L. -o $EXE -T $RES';
+     end;
+  end;
+
+function TlinkerEmbedded_SdccSdld.MakeExecutable: boolean;
+  var
+    binstr,
+    cmdstr,
+    mapstr: TCmdStr;
+    success : boolean;
+    StaticStr,
+    GCSectionsStr,
+    DynLinkStr,
+    StripStr,
+    FixedExeFileName: string;
+  begin
+    { for future use }
+    StaticStr:='';
+    StripStr:='';
+    mapstr:='';
+    DynLinkStr:='';
+    FixedExeFileName:=maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,'.elf')));
+
+(*    GCSectionsStr:='--gc-sections';
+    //if not(cs_link_extern in current_settings.globalswitches) then
+    if not(cs_link_nolink in current_settings.globalswitches) then
+     Message1(exec_i_linking,current_module.exefilename);
+
+    if (cs_link_map in current_settings.globalswitches) then
+     mapstr:='-Map '+maybequoted(ChangeFileExt(current_module.exefilename,'.map'));*)
+
+  { Write used files and libraries }
+    WriteResponseFile();
+
+  { Call linker }
+    SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
+    Replace(cmdstr,'$OPT',Info.ExtraOptions);
+    if not(cs_link_on_target in current_settings.globalswitches) then
+     begin
+      Replace(cmdstr,'$EXE',FixedExeFileName);
+      Replace(cmdstr,'$RES',(maybequoted(ScriptFixFileName(outputexedir+Info.ResName))));
+      Replace(cmdstr,'$STATIC',StaticStr);
+      Replace(cmdstr,'$STRIP',StripStr);
+      Replace(cmdstr,'$MAP',mapstr);
+      Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
+      Replace(cmdstr,'$DYNLINK',DynLinkStr);
+     end
+    else
+     begin
+      Replace(cmdstr,'$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);
+     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 and not(cs_link_nolink in current_settings.globalswitches) then
+      success:=PostProcessExecutable(FixedExeFileName,false);
+
+    if success and (target_info.system in [system_arm_embedded,system_avr_embedded,system_mipsel_embedded,system_xtensa_embedded]) then
+      begin
+        success:=DoExec(FindUtil(utilsprefix+'objcopy'),'-O ihex '+
+          FixedExeFileName+' '+
+          maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,'.hex'))),true,false);
+        if success then
+          success:=DoExec(FindUtil(utilsprefix+'objcopy'),'-O binary '+
+            FixedExeFileName+' '+
+            maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,'.bin'))),true,false);
+      end;
+
+    MakeExecutable:=success;   { otherwise a recursive call to link method }*)
+  end;
+
+
 {*****************************************************************************
                                      Initialize
 *****************************************************************************}
@@ -1860,7 +2116,7 @@ initialization
 {$endif xtensa}
 
 {$ifdef z80}
-  RegisterLinker(ld_embedded,TLinkerEmbedded);
+  RegisterLinker(ld_embedded,TlinkerEmbedded_SdccSdld);
   RegisterTarget(system_z80_embedded_info);
 {$endif z80}
 end.