mirror of
https://gitlab.com/freepascal.org/fpc/source.git
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659 lines
20 KiB
ObjectPascal
659 lines
20 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Peter Vreman (original Linux)
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(c) 2000 by Marco van de Voort (FreeBSD mods)
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This unit implements support import,export,link routines
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for the (i386)FreeBSD 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_bsd;
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{$i fpcdefs.inc}
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interface
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implementation
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uses
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{$ifdef gdb}
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gdb,
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{$endif gdb}
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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,aasmbase,aasmtai,aasmcpu,cpubase,symsym,symdef,
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import,export,link,i_bsd,
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cgutils,cgbase,cgobj,cpuinfo;
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type
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tdarwinimported_item = class(timported_item)
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procdef : tprocdef;
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end;
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timportlibdarwin=class(timportlib)
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procedure preparelib(const s:string);override;
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procedure importprocedure(aprocdef:tprocdef;const module:string;index:longint;const name:string);override;
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procedure importvariable(vs:tglobalvarsym;const name,module:string);override;
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procedure generatelib;override;
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procedure generatesmartlib;override;
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end;
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timportlibbsd=class(timportlib)
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procedure preparelib(const s:string);override;
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procedure importprocedure(aprocdef:tprocdef;const module:string;index:longint;const name:string);override;
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procedure importvariable(vs:tglobalvarsym;const name,module:string);override;
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procedure generatelib;override;
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end;
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texportlibbsd=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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tlinkerbsd=class(texternallinker)
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private
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LdSupportsNoResponseFile : boolean;
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LibrarySuffix : Char;
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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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function MakeSharedLibrary:boolean;override;
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end;
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{*****************************************************************************
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TIMPORTLIBDARWIN
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*****************************************************************************}
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procedure timportlibdarwin.preparelib(const s : string);
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begin
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if asmlist[al_imports]=nil then
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asmlist[al_imports]:=TAAsmoutput.create;
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end;
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procedure timportlibdarwin.importprocedure(aprocdef:tprocdef;const 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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end;
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procedure timportlibdarwin.importvariable(vs:tglobalvarsym;const name,module: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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{ the rest is handled in the nppcld.pas tppcloadnode }
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vs.set_mangledname(name);
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end;
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procedure timportlibdarwin.generatesmartlib;
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begin
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generatelib;
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end;
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procedure timportlibdarwin.generatelib;
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begin
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end;
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{*****************************************************************************
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TIMPORTLIBBSD
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*****************************************************************************}
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procedure timportlibbsd.preparelib(const s : string);
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begin
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end;
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procedure timportlibbsd.importprocedure(aprocdef:tprocdef;const 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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end;
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procedure timportlibbsd.importvariable(vs:tglobalvarsym;const name,module: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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vs.set_mangledname(name);
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exclude(vs.varoptions,vo_is_dll_var);
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end;
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procedure timportlibbsd.generatelib;
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begin
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end;
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{*****************************************************************************
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TEXPORTLIBBSD
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*****************************************************************************}
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procedure texportlibbsd.preparelib(const s:string);
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begin
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end;
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procedure texportlibbsd.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,'*bsd/darwin');
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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 texportlibbsd.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 texportlibbsd.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) and
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(hp2.sym.typ=procsym) then
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begin
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{ the manglednames can already be the same when the procedure
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is declared with cdecl }
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if tprocsym(hp2.sym).first_procdef.mangledname<>hp2.name^ then
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begin
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{$ifdef i386}
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{ place jump in al_procedures }
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asmlist[al_procedures].concat(Tai_align.Create_op(4,$90));
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asmlist[al_procedures].concat(Tai_symbol.Createname_global(hp2.name^,AT_FUNCTION,0));
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asmlist[al_procedures].concat(Taicpu.Op_sym(A_JMP,S_NO,objectlibrary.newasmsymbol(tprocsym(hp2.sym).first_procdef.mangledname,AB_EXTERNAL,AT_FUNCTION)));
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asmlist[al_procedures].concat(Tai_symbol_end.Createname(hp2.name^));
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{$endif i386}
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{$ifdef powerpc}
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asmlist[al_procedures].concat(Tai_align.create(16));
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asmlist[al_procedures].concat(Tai_symbol.Createname_global(hp2.name^,AT_FUNCTION,0));
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asmlist[al_procedures].concat(Taicpu.Op_sym(A_B,objectlibrary.newasmsymbol(tprocsym(hp2.sym).first_procdef.mangledname,AB_EXTERNAL,AT_FUNCTION)));
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asmlist[al_procedures].concat(Tai_symbol_end.Createname(hp2.name^));
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{$endif powerpc}
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end;
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end
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else
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Message1(parser_e_no_export_of_variables_for_target,'*bsd/darwin');
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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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TLINKERLINUX
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*****************************************************************************}
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Constructor TLinkerBSD.Create;
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begin
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Inherited Create;
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if not Dontlinkstdlibpath Then
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if (target_info.system <> system_powerpc_darwin) then
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LibrarySearchPath.AddPath('/lib;/usr/lib;/usr/X11R6/lib',true)
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else
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{ Mac OS X doesn't have a /lib }
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LibrarySearchPath.AddPath('/usr/lib',true)
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end;
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procedure TLinkerBSD.SetDefaultInfo;
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{
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This will also detect which libc version will be used
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}
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begin
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LibrarySuffix:=' ';
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LdSupportsNoResponseFile := (target_info.system in [system_m68k_netbsd,system_powerpc_darwin]);
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with Info do
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begin
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if LdSupportsNoResponseFile then
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begin
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if (target_info.system <> system_powerpc_darwin) then
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begin
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ExeCmd[1]:='ld $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -L. -o $EXE `cat $RES`';
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DllCmd[1]:='ld $OPT -shared -L. -o $EXE `cat $RES`'
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end
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else
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begin
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ExeCmd[1]:='ld $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -multiply_defined suppress -L. -o $EXE `cat $RES`';
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DllCmd[1]:='libtool $OPT -dynamic -init PASCALMAIN -multiply_defined suppress -L. -o $EXE `cat $RES`'
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end
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end
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else
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begin
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ExeCmd[1]:='ld $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -L. -o $EXE $RES';
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DllCmd[1]:='ld $OPT $INIT $FINI $SONAME -shared -L. -o $EXE $RES';
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end;
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if (target_info.system <> system_powerpc_darwin) then
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DllCmd[2]:='strip --strip-unneeded $EXE'
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else
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DllCmd[2]:='strip -x $EXE';
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{ first try glibc2 }
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{$ifdef GLIBC2} {Keep linux code in place. FBSD might go to a different
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glibc too once}
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DynamicLinker:='/lib/ld-linux.so.2';
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if FileExists(DynamicLinker) then
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begin
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Glibc2:=true;
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{ Check for 2.0 files, else use the glibc 2.1 stub }
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if FileExists('/lib/ld-2.0.*') then
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Glibc21:=false
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else
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Glibc21:=true;
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end
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else
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DynamicLinker:='/lib/ld-linux.so.1';
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{$else}
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DynamicLinker:='';
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{$endif}
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end;
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end;
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Function TLinkerBSD.WriteResponseFile(isdll:boolean) : Boolean;
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Var
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linkres : TLinkRes;
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i : longint;
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cprtobj,
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gprtobj,
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prtobj : string[80];
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HPath : TStringListItem;
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s,s1,s2 : string;
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linkpthread,
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linkdynamic,
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linklibc : boolean;
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Fl1,Fl2 : 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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if target_info.system <> system_powerpc_darwin then
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begin
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linkdynamic:=not(SharedLibFiles.empty);
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linklibc:=(SharedLibFiles.Find('c')<>nil);
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linkpthread:=(SharedLibFiles.Find('pthread')<>nil);
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if (target_info.system =system_i386_freebsd) and linkpthread Then
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Begin
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if not (cs_link_pthread in aktglobalswitches) Then
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begin
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{delete pthreads from list, in this case it is in libc_r}
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SharedLibFiles.Remove(SharedLibFiles.Find('pthread').str);
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LibrarySuffix:='r';
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end;
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End;
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prtobj:='prt0';
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cprtobj:='cprt0';
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gprtobj:='gprt0';
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if cs_profile in aktmoduleswitches then
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begin
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prtobj:=gprtobj;
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AddSharedLibrary('c');
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LibrarySuffix:='p';
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linklibc:=true;
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end
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else
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begin
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if linklibc then
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prtobj:=cprtobj;
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end;
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end
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else
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begin
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{ for darwin: always link dynamically against libc }
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linklibc := true;
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if not(isdll) then
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if not(cs_profile in aktmoduleswitches) then
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prtobj:='/usr/lib/crt1.o'
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else
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prtobj:='/usr/lib/gcrt1.o'
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else
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prtobj:='';
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end;
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{ Open link.res file }
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LinkRes:=TLinkRes.Create(outputexedir+Info.ResName);
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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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if LdSupportsNoResponseFile then
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LinkRes.Add(maybequoted('-L'+HPath.Str))
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else
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LinkRes.Add('SEARCH_DIR('+maybequoted(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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if LdSupportsNoResponseFile then
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LinkRes.Add(maybequoted('-L'+HPath.Str))
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else
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LinkRes.Add('SEARCH_DIR('+maybequoted(HPath.Str)+')');
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HPath:=TStringListItem(HPath.Next);
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end;
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if not LdSupportsNoResponseFile then
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LinkRes.Add('INPUT(');
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{ add objectfiles, start with prt0 always }
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if prtobj<>'' then
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LinkRes.AddFileName(FindObjectFile(prtobj,'',false));
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{ try to add crti and crtbegin if linking to C }
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if linklibc and
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(target_info.system <> system_powerpc_darwin) then
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begin
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if librarysearchpath.FindFile('crtbegin.o',s) then
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LinkRes.AddFileName(s);
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if librarysearchpath.FindFile('crti.o',s) then
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LinkRes.AddFileName(s);
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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(maybequoted(s));
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end;
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if not LdSupportsNoResponseFile then
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LinkRes.Add(')');
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{ Write staticlibraries }
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if not StaticLibFiles.Empty then
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begin
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if not LdSupportsNoResponseFile then
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LinkRes.Add('GROUP(');
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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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if not LdSupportsNoResponseFile then
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LinkRes.Add(')');
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end;
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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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if not SharedLibFiles.Empty then
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begin
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if not LdSupportsNoResponseFile then
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LinkRes.Add('INPUT(');
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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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linkdynamic:=false; { libc will include the ld-linux for us }
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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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Begin
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If LibrarySuffix=' ' Then
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LinkRes.Add('-lc')
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else
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LinkRes.Add('-lc_'+LibrarySuffix);
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If LibrarySuffix='r' Then
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LinkRes.Add('-lc');
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end;
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{ when we have -static for the linker the we also need libgcc }
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if (cs_link_staticflag in aktglobalswitches) then
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LinkRes.Add('-lgcc');
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if linkdynamic and (Info.DynamicLinker<>'') then
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LinkRes.AddFileName(Info.DynamicLinker);
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if not LdSupportsNoResponseFile then
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LinkRes.Add(')');
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end;
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{ objects which must be at the end }
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if linklibc and
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(target_info.system <> system_powerpc_darwin) then
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begin
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Fl1:=librarysearchpath.FindFile('crtend.o',s1);
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Fl2:=librarysearchpath.FindFile('crtn.o',s2);
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if Fl1 or Fl2 then
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begin
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LinkRes.Add('INPUT(');
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If Fl1 Then
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LinkRes.AddFileName(s1);
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If Fl2 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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{ ignore the fact that our relocations are in non-writable sections, }
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{ will be fixed once we have pic support }
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if isdll and
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(target_info.system = system_powerpc_darwin) then
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LinkRes.Add('-read_only_relocs suppress');
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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 TLinkerBSD.MakeExecutable:boolean;
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var
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binstr : String;
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cmdstr : TCmdStr;
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success : boolean;
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DynLinkStr : string[60];
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GCSectionsStr,
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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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GCSectionsStr:='';
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if (cs_link_staticflag in aktglobalswitches) then
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begin
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|
if (target_info.system=system_m68k_netbsd) and
|
|
((cs_link_on_target in aktglobalswitches) or
|
|
(target_info.system=source_info.system)) then
|
|
StaticStr:='-Bstatic'
|
|
else
|
|
StaticStr:='-static';
|
|
end;
|
|
if (cs_link_strip in aktglobalswitches) then
|
|
if (target_info.system <> system_powerpc_darwin) then
|
|
StripStr:='-s'
|
|
else
|
|
StripStr:='-x';
|
|
|
|
if (cs_link_smart in aktglobalswitches) and
|
|
(tf_smartlink_sections in target_info.flags) then
|
|
GCSectionsStr:='--gc-sections';
|
|
|
|
If (cs_profile in aktmoduleswitches) or
|
|
((Info.DynamicLinker<>'') and (not SharedLibFiles.Empty)) then
|
|
DynLinkStr:='-dynamic-linker='+Info.DynamicLinker;
|
|
|
|
if CShared Then
|
|
DynLinKStr:=DynLinkStr+' --shared';
|
|
{ Write used files and libraries }
|
|
WriteResponseFile(false);
|
|
|
|
{ Call linker }
|
|
SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
|
|
Replace(cmdstr,'$EXE',maybequoted(current_module.exefilename^));
|
|
Replace(cmdstr,'$OPT',Info.ExtraOptions);
|
|
Replace(cmdstr,'$RES',maybequoted(outputexedir+Info.ResName));
|
|
Replace(cmdstr,'$STATIC',StaticStr);
|
|
Replace(cmdstr,'$STRIP',StripStr);
|
|
Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
|
|
Replace(cmdstr,'$DYNLINK',DynLinkStr);
|
|
success:=DoExec(FindUtil(utilsprefix+BinStr),CmdStr,true,LdSupportsNoResponseFile);
|
|
|
|
{ Remove ReponseFile }
|
|
if (success) and not(cs_link_extern in aktglobalswitches) then
|
|
RemoveFile(outputexedir+Info.ResName);
|
|
|
|
MakeExecutable:=success; { otherwise a recursive call to link method }
|
|
end;
|
|
|
|
|
|
Function TLinkerBSD.MakeSharedLibrary:boolean;
|
|
var
|
|
InitStr,
|
|
FiniStr,
|
|
SoNameStr : string[80];
|
|
binstr : String;
|
|
cmdstr : TCmdStr;
|
|
success : boolean;
|
|
begin
|
|
MakeSharedLibrary:=false;
|
|
if not(cs_link_extern in aktglobalswitches) then
|
|
Message1(exec_i_linking,current_module.sharedlibfilename^);
|
|
|
|
{ Write used files and libraries }
|
|
WriteResponseFile(true);
|
|
|
|
InitStr:='-init FPC_LIB_START';
|
|
FiniStr:='-fini FPC_LIB_EXIT';
|
|
SoNameStr:='-soname '+SplitFileName(current_module.sharedlibfilename^);
|
|
|
|
{ Call linker }
|
|
SplitBinCmd(Info.DllCmd[1],binstr,cmdstr);
|
|
Replace(cmdstr,'$EXE',maybequoted(current_module.sharedlibfilename^));
|
|
Replace(cmdstr,'$OPT',Info.ExtraOptions);
|
|
Replace(cmdstr,'$RES',maybequoted(outputexedir+Info.ResName));
|
|
Replace(cmdstr,'$INIT',InitStr);
|
|
Replace(cmdstr,'$FINI',FiniStr);
|
|
Replace(cmdstr,'$SONAME',SoNameStr);
|
|
|
|
success:=DoExec(FindUtil(utilsprefix+binstr),cmdstr,true,LdSupportsNoResponseFile);
|
|
|
|
{ Strip the library ? }
|
|
if success and (cs_link_strip in aktglobalswitches) then
|
|
begin
|
|
SplitBinCmd(Info.DllCmd[2],binstr,cmdstr);
|
|
Replace(cmdstr,'$EXE',maybequoted(current_module.sharedlibfilename^));
|
|
success:=DoExec(FindUtil(utilsprefix+binstr),cmdstr,true,false);
|
|
end;
|
|
|
|
{ Remove ReponseFile }
|
|
if (success) and not(cs_link_extern in aktglobalswitches) then
|
|
RemoveFile(outputexedir+Info.ResName);
|
|
|
|
MakeSharedLibrary:=success; { otherwise a recursive call to link method }
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
Initialize
|
|
*****************************************************************************}
|
|
|
|
initialization
|
|
{$ifdef x86_64}
|
|
RegisterExternalLinker(system_x86_64_FreeBSD_info,TLinkerBSD);
|
|
RegisterImport(system_x86_64_freebsd,timportlibbsd);
|
|
RegisterExport(system_x86_64_freebsd,texportlibbsd);
|
|
RegisterTarget(system_x86_64_freebsd_info);
|
|
{$endif}
|
|
{$ifdef i386}
|
|
RegisterExternalLinker(system_i386_FreeBSD_info,TLinkerBSD);
|
|
RegisterExternalLinker(system_i386_NetBSD_info,TLinkerBSD);
|
|
RegisterExternalLinker(system_i386_OpenBSD_info,TLinkerBSD);
|
|
RegisterImport(system_i386_freebsd,timportlibbsd);
|
|
RegisterExport(system_i386_freebsd,texportlibbsd);
|
|
RegisterTarget(system_i386_freebsd_info);
|
|
RegisterImport(system_i386_netbsd,timportlibbsd);
|
|
RegisterExport(system_i386_netbsd,texportlibbsd);
|
|
RegisterTarget(system_i386_netbsd_info);
|
|
RegisterImport(system_i386_openbsd,timportlibbsd);
|
|
RegisterExport(system_i386_openbsd,texportlibbsd);
|
|
RegisterTarget(system_i386_openbsd_info);
|
|
{$endif i386}
|
|
{$ifdef m68k}
|
|
// RegisterExternalLinker(system_m68k_FreeBSD_info,TLinkerBSD);
|
|
RegisterExternalLinker(system_m68k_NetBSD_info,TLinkerBSD);
|
|
RegisterImport(system_m68k_netbsd,timportlibbsd);
|
|
RegisterExport(system_m68k_netbsd,texportlibbsd);
|
|
RegisterTarget(system_m68k_netbsd_info);
|
|
{$endif m68k}
|
|
{$ifdef powerpc}
|
|
// RegisterExternalLinker(system_m68k_FreeBSD_info,TLinkerBSD);
|
|
RegisterExternalLinker(system_powerpc_darwin_info,TLinkerBSD);
|
|
RegisterImport(system_powerpc_darwin,timportlibdarwin);
|
|
RegisterExport(system_powerpc_darwin,texportlibbsd);
|
|
RegisterTarget(system_powerpc_darwin_info);
|
|
RegisterExternalLinker(system_powerpc_netbsd_info,TLinkerBSD);
|
|
RegisterImport(system_powerpc_netbsd,timportlibbsd);
|
|
RegisterExport(system_powerpc_netbsd,texportlibbsd);
|
|
RegisterTarget(system_powerpc_netbsd_info);
|
|
{$endif powerpc}
|
|
end.
|