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571 lines
16 KiB
ObjectPascal
571 lines
16 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Peter Vreman
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This unit implements support import,export,link routines
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for the (i386) BeOS 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_beos;
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{$i defines.inc}
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interface
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uses
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import,export,link;
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type
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timportlibbeos=class(timportlib)
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procedure preparelib(const s:string);override;
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procedure importprocedure(const func,module:string;index:longint;const name:string);override;
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procedure importvariable(const varname,module:string;const name:string);override;
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procedure generatelib;override;
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end;
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texportlibbeos=class(texportlib)
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procedure preparelib(const s : string);override;
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procedure exportprocedure(hp : texported_item);override;
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procedure exportvar(hp : texported_item);override;
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procedure generatelib;override;
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end;
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tlinkerbeos=class(tlinker)
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private
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Function WriteResponseFile(isdll:boolean;makelib: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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function MakeSharedLibrary:boolean;override;
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end;
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implementation
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uses
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dos,
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cutils,cclasses,
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verbose,systems,globtype,globals,
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symconst,script,
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fmodule,aasm,cpuasm,cpubase,symsym;
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{*****************************************************************************
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TIMPORTLIBBEOS
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*****************************************************************************}
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procedure timportlibbeos.preparelib(const s : string);
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begin
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end;
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procedure timportlibbeos.importprocedure(const func,module : string;index : longint;const name : string);
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begin
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{ insert sharedlibrary }
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current_module.linkothersharedlibs.add(SplitName(module),link_allways);
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{ do nothing with the procedure, only set the mangledname }
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if name<>'' then
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aktprocsym.definition.setmangledname(name)
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else
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message(parser_e_empty_import_name);
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end;
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procedure timportlibbeos.importvariable(const varname,module:string;const name:string);
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begin
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{ insert sharedlibrary }
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current_module.linkothersharedlibs.add(SplitName(module),link_allways);
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{ reset the mangledname and turn off the dll_var option }
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aktvarsym.setmangledname(name);
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exclude(aktvarsym.varoptions,vo_is_dll_var);
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end;
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procedure timportlibbeos.generatelib;
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begin
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end;
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{*****************************************************************************
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TEXPORTLIBBEOS
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*****************************************************************************}
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procedure texportlibbeos.preparelib(const s:string);
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begin
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end;
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procedure texportlibbeos.exportprocedure(hp : texported_item);
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var
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hp2 : texported_item;
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begin
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{ first test the index value }
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if (hp.options and eo_index)<>0 then
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begin
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Message1(parser_e_no_export_with_index_for_target,'beos');
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exit;
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end;
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{ now place in correct order }
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hp2:=texported_item(current_module._exports.first);
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while assigned(hp2) and
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(hp.name^>hp2.name^) do
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hp2:=texported_item(hp2.next);
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{ insert hp there !! }
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if assigned(hp2) and (hp2.name^=hp.name^) then
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begin
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{ this is not allowed !! }
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Message1(parser_e_export_name_double,hp.name^);
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exit;
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end;
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if hp2=texported_item(current_module._exports.first) then
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current_module._exports.concat(hp)
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else if assigned(hp2) then
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begin
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hp.next:=hp2;
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hp.previous:=hp2.previous;
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if assigned(hp2.previous) then
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hp2.previous.next:=hp;
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hp2.previous:=hp;
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end
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else
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current_module._exports.concat(hp);
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end;
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procedure texportlibbeos.exportvar(hp : texported_item);
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begin
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hp.is_var:=true;
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exportprocedure(hp);
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end;
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procedure texportlibbeos.generatelib;
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var
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hp2 : texported_item;
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begin
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hp2:=texported_item(current_module._exports.first);
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while assigned(hp2) do
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begin
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if not hp2.is_var then
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begin
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{$ifdef i386}
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{ place jump in codesegment }
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codesegment.concat(Tai_align.Create_op(4,$90));
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codeSegment.concat(Tai_symbol.Createname_global(hp2.name^,0));
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codeSegment.concat(Taicpu.Op_sym(A_JMP,S_NO,newasmsymbol(hp2.sym.mangledname)));
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codeSegment.concat(Tai_symbol_end.Createname(hp2.name^));
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{$endif i386}
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end
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else
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Message1(parser_e_no_export_of_variables_for_target,'beos');
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hp2:=texported_item(hp2.next);
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end;
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end;
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{*****************************************************************************
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TLINKERBEOS
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*****************************************************************************}
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Constructor TLinkerBeos.Create;
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var
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s : string;
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i : integer;
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begin
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Inherited Create;
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s:=GetEnv('BELIBRARIES');
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{ convert to correct format in case under unix system }
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for i:=1 to length(s) do
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if s[i] = ':' then
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s[i] := ';';
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{ just in case we have a single path : add the ending ; }
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{ since that is what the compiler expects. }
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if pos(';',s) = 0 then
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s:=s+';';
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LibrarySearchPath.AddPath(s,true); {format:'path1;path2;...'}
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end;
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procedure TLinkerBeOS.SetDefaultInfo;
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begin
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with Info do
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begin
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ExeCmd[1]:='sh $RES $EXE $OPT $STATIC $STRIP -L.';
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{ ExeCmd[1]:='sh $RES $EXE $OPT $DYNLINK $STATIC $STRIP -L.';}
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DllCmd[1]:='sh $RES $EXE $OPT -L.';
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{ DllCmd[1]:='sh $RES $EXE $OPT -L. -g -nostart -soname=$EXE';
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} DllCmd[2]:='strip --strip-unneeded $EXE';
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{ DynamicLinker:='/lib/ld-beos.so.2';}
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end;
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end;
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function TLinkerBeOS.WriteResponseFile(isdll:boolean;makelib:boolean) : Boolean;
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Var
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linkres : TLinkRes;
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i : integer;
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cprtobj,
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prtobj : string[80];
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HPath : TStringListItem;
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s : string;
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linklibc : boolean;
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begin
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WriteResponseFile:=False;
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{ set special options for some targets }
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linklibc:=(SharedLibFiles.Find('root')<>nil);
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prtobj:='prt0';
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cprtobj:='cprt0';
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if (cs_profile in aktmoduleswitches) or
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(not SharedLibFiles.Empty) then
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begin
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AddSharedLibrary('root');
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linklibc:=true;
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end;
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if (not linklibc) and makelib then
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begin
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linklibc:=true;
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cprtobj:='dllprt.o';
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end;
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if linklibc then
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prtobj:=cprtobj;
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{ Open link.res file }
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LinkRes:=TLinkRes.Create(outputexedir+Info.ResName);
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if not isdll then
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LinkRes.Add('ld -o $1 $2 $3 $4 $5 $6 $7 $8 $9 \')
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else
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LinkRes.Add('ld -o $1 -e 0 $2 $3 $4 $5 $6 $7 $8 $9\');
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LinkRes.Add('-m elf_i386_be -shared -Bsymbolic \');
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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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LinkRes.Add('-L'+HPath.Str+' \');
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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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LinkRes.Add('-L'+HPath.Str+' \');
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HPath:=TStringListItem(HPath.Next);
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end;
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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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if librarysearchpath.FindFile('crti.o',s) then
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LinkRes.AddFileName(s+' \');
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if librarysearchpath.FindFile('crtbegin.o',s) then
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LinkRes.AddFileName(s+' \');
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{ s:=librarysearchpath.FindFile('start_dyn.o',found)+'start_dyn.o';
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if found then LinkRes.AddFileName(s+' \');}
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if prtobj<>'' then
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LinkRes.AddFileName(FindObjectFile(prtobj,'')+' \');
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if isdll then
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LinkRes.AddFileName(FindObjectFile('func.o','')+' \');
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if librarysearchpath.FindFile('init_term_dyn.o',s) then
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LinkRes.AddFileName(s+' \');
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end
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else
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begin
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if prtobj<>'' then
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LinkRes.AddFileName(FindObjectFile(prtobj,'')+' \');
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end;
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{ main objectfiles }
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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.AddFileName(s+' \');
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end;
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{ LinkRes.Add('-lroot \');
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LinkRes.Add('/boot/develop/tools/gnupro/lib/gcc-lib/i586-beos/2.9-beos-991026/crtend.o \');
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LinkRes.Add('/boot/develop/lib/x86/crtn.o \');}
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{ Write staticlibraries }
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if not StaticLibFiles.Empty then
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begin
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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(s+' \')
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end;
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end;
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{ Write sharedlibraries like -l<lib> }
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if not SharedLibFiles.Empty then
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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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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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linklibc:=true;
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end;
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end;
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{ be sure that libc is the last lib }
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{ if linklibc then
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LinkRes.Add('-lroot');}
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{ if linkdynamic and (Info.DynamicLinker<>'') then
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LinkRes.AddFileName(Info.DynamicLinker);}
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end;
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if isdll then
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LinkRes.Add('-lroot \');
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{ objects which must be at the end }
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if linklibc then
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begin
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if librarysearchpath.FindFile('crtend.o',s) then
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LinkRes.AddFileName(s+' \');
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if librarysearchpath.FindFile('crtn.o',s) then
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LinkRes.AddFileName(s+' \');
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end;
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{ Write and Close response }
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linkres.Add(' ');
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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 TLinkerBeOS.MakeExecutable:boolean;
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var
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binstr,
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cmdstr : string;
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success : boolean;
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{ DynLinkStr : string[60];}
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StaticStr,
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StripStr : string[40];
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begin
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if not(cs_link_extern in aktglobalswitches) then
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Message1(exec_i_linking,current_module.exefilename^);
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{ Create some replacements }
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StaticStr:='';
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StripStr:='';
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{ DynLinkStr:='';}
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if (cs_link_staticflag in aktglobalswitches) then
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StaticStr:='-static';
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if (cs_link_strip in aktglobalswitches) then
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StripStr:='-s';
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{ If (cs_profile in aktmoduleswitches) or
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((Info.DynamicLinker<>'') and (not SharedLibFiles.Empty)) then
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DynLinkStr:='-dynamic-linker='+Info.DynamicLinker;}
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{ Write used files and libraries }
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WriteResponseFile(false,false);
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{ Call linker }
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SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
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Replace(cmdstr,'$EXE',current_module.exefilename^);
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Replace(cmdstr,'$OPT',Info.ExtraOptions);
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Replace(cmdstr,'$RES',outputexedir+Info.ResName);
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Replace(cmdstr,'$STATIC',StaticStr);
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Replace(cmdstr,'$STRIP',StripStr);
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{ Replace(cmdstr,'$DYNLINK',DynLinkStr);}
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success:=DoExec(FindUtil(BinStr),CmdStr,true,false);
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{ Remove ReponseFile }
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if (success) and not(cs_link_extern in aktglobalswitches) then
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RemoveFile(outputexedir+Info.ResName);
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MakeExecutable:=success; { otherwise a recursive call to link method }
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end;
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Function TLinkerBeOS.MakeSharedLibrary:boolean;
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var
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binstr,
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cmdstr : string;
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success : boolean;
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begin
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MakeSharedLibrary:=false;
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if not(cs_link_extern in aktglobalswitches) then
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Message1(exec_i_linking,current_module.sharedlibfilename^);
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{ Write used files and libraries }
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WriteResponseFile(true,true);
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{ Call linker }
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SplitBinCmd(Info.DllCmd[1],binstr,cmdstr);
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Replace(cmdstr,'$EXE',current_module.sharedlibfilename^);
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Replace(cmdstr,'$OPT',Info.ExtraOptions);
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Replace(cmdstr,'$RES',outputexedir+Info.ResName);
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success:=DoExec(FindUtil(binstr),cmdstr,true,false);
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{ Strip the library ? }
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if success and (cs_link_strip in aktglobalswitches) then
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begin
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SplitBinCmd(Info.DllCmd[2],binstr,cmdstr);
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Replace(cmdstr,'$EXE',current_module.sharedlibfilename^);
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success:=DoExec(FindUtil(binstr),cmdstr,true,false);
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end;
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{ Remove ReponseFile }
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if (success) and not(cs_link_extern in aktglobalswitches) then
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RemoveFile(outputexedir+Info.ResName);
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MakeSharedLibrary:=success; { otherwise a recursive call to link method }
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end;
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{*****************************************************************************
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Initialize
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*****************************************************************************}
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{$ifdef i386}
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const
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target_i386_beos_info : ttargetinfo =
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(
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target : target_i386_BeOS;
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name : 'Beos for i386';
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shortname : 'Beos';
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flags : [tf_under_development];
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cpu : i386;
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unit_env : 'BEOSUNITS';
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extradefines : '';
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sourceext : '.pp';
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pasext : '.pas';
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exeext : '';
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defext : '.def';
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scriptext : '.sh';
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smartext : '.sl';
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unitext : '.ppu';
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unitlibext : '.ppl';
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asmext : '.s';
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objext : '.o';
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resext : '.res';
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resobjext : '.or';
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sharedlibext : '.so';
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staticlibext : '.a';
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staticlibprefix : 'libp';
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sharedlibprefix : 'lib';
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sharedClibext : '.so';
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staticClibext : '.a';
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staticClibprefix : 'lib';
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sharedClibprefix : 'lib';
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Cprefix : '';
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newline : #10;
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dirsep : '/';
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files_case_relevent : true;
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assem : as_i386_as;
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assemextern : as_i386_as;
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link : ld_i386_beos;
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linkextern : ld_i386_beos;
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ar : ar_gnu_ar;
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res : res_none;
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script : script_unix;
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endian : endian_little;
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alignment :
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(
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procalign : 4;
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loopalign : 4;
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jumpalign : 0;
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constalignmin : 0;
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constalignmax : 1;
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varalignmin : 0;
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varalignmax : 1;
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localalignmin : 0;
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localalignmax : 1;
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paraalign : 4;
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recordalignmin : 0;
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recordalignmax : 2;
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maxCrecordalign : 4
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);
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size_of_pointer : 4;
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size_of_longint : 4;
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heapsize : 256*1024;
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maxheapsize : 32768*1024;
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stacksize : 8192;
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DllScanSupported:false;
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use_bound_instruction : false;
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use_function_relative_addresses : true
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);
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{$endif i386}
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initialization
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{$ifdef i386}
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RegisterLinker(ld_i386_beos,TLinkerbeos);
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RegisterImport(target_i386_beos,timportlibbeos);
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RegisterExport(target_i386_beos,texportlibbeos);
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RegisterTarget(target_i386_beos_info);
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{$endif i386}
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end.
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{
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$Log$
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Revision 1.9 2001-10-12 16:05:34 peter
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* system lib search fixed (merged)
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Revision 1.8 2001/09/18 11:32:00 michael
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* Fixes win32 linking problems with import libraries
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* LINKLIB Libraries are now looked for using C file extensions
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* get_exepath fix
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Revision 1.7 2001/09/17 21:29:15 peter
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* merged netbsd, fpu-overflow from fixes branch
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Revision 1.6 2001/08/12 17:57:07 peter
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* under development flag for targets
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Revision 1.5 2001/08/07 18:47:15 peter
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* merged netbsd start
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* profile for win32
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Revision 1.4 2001/07/01 20:16:20 peter
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* alignmentinfo record added
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* -Oa argument supports more alignment settings that can be specified
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per type: PROC,LOOP,VARMIN,VARMAX,CONSTMIN,CONSTMAX,RECORDMIN
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RECORDMAX,LOCALMIN,LOCALMAX. It is possible to set the mimimum
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required alignment and the maximum usefull alignment. The final
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alignment will be choosen per variable size dependent on these
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settings
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Revision 1.3 2001/06/28 19:46:25 peter
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* added override and virtual for constructors
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Revision 1.2 2001/06/03 15:15:31 peter
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* dllprt0 stub for linux shared libs
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* pass -init and -fini for linux shared libs
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* libprefix splitted into staticlibprefix and sharedlibprefix
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Revision 1.1 2001/06/02 19:29:37 peter
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* beos target
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}
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