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fpc/compiler/targets/t_beos.pas
peter 5fed44fe5d * dllprt0 stub for linux shared libs 
* pass -init and -fini for linux shared libs
  * libprefix splitted into staticlibprefix and sharedlibprefix
2001-06-03 15:15:31 +00:00

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{
$Id$
Copyright (c) 1998-2000 by Peter Vreman
This unit implements support import,export,link routines
for the (i386) BeOS target.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit t_beos;
{$i defines.inc}
interface
uses
import,export,link;
type
timportlibbeos=class(timportlib)
procedure preparelib(const s:string);override;
procedure importprocedure(const func,module:string;index:longint;const name:string);override;
procedure importvariable(const varname,module:string;const name:string);override;
procedure generatelib;override;
end;
texportlibbeos=class(texportlib)
procedure preparelib(const s : string);override;
procedure exportprocedure(hp : texported_item);override;
procedure exportvar(hp : texported_item);override;
procedure generatelib;override;
end;
tlinkerbeos=class(tlinker)
private
Function WriteResponseFile(isdll:boolean;makelib:boolean) : Boolean;
public
constructor Create;
procedure SetDefaultInfo;override;
function MakeExecutable:boolean;override;
function MakeSharedLibrary:boolean;override;
end;
implementation
uses
dos,
cutils,cclasses,
verbose,systems,globtype,globals,
symconst,script,
fmodule,aasm,cpuasm,cpubase,symsym;
{*****************************************************************************
TIMPORTLIBBEOS
*****************************************************************************}
procedure timportlibbeos.preparelib(const s : string);
begin
end;
procedure timportlibbeos.importprocedure(const func,module : string;index : longint;const name : string);
begin
{ insert sharedlibrary }
current_module.linkothersharedlibs.add(SplitName(module),link_allways);
{ do nothing with the procedure, only set the mangledname }
if name<>'' then
aktprocsym.definition.setmangledname(name)
else
message(parser_e_empty_import_name);
end;
procedure timportlibbeos.importvariable(const varname,module:string;const name:string);
begin
{ insert sharedlibrary }
current_module.linkothersharedlibs.add(SplitName(module),link_allways);
{ reset the mangledname and turn off the dll_var option }
aktvarsym.setmangledname(name);
exclude(aktvarsym.varoptions,vo_is_dll_var);
end;
procedure timportlibbeos.generatelib;
begin
end;
{*****************************************************************************
TEXPORTLIBBEOS
*****************************************************************************}
procedure texportlibbeos.preparelib(const s:string);
begin
end;
procedure texportlibbeos.exportprocedure(hp : texported_item);
var
hp2 : texported_item;
begin
{ first test the index value }
if (hp.options and eo_index)<>0 then
begin
Message1(parser_e_no_export_with_index_for_target,'beos');
exit;
end;
{ now place in correct order }
hp2:=texported_item(current_module._exports.first);
while assigned(hp2) and
(hp.name^>hp2.name^) do
hp2:=texported_item(hp2.next);
{ insert hp there !! }
if assigned(hp2) and (hp2.name^=hp.name^) then
begin
{ this is not allowed !! }
Message1(parser_e_export_name_double,hp.name^);
exit;
end;
if hp2=texported_item(current_module._exports.first) then
current_module._exports.concat(hp)
else if assigned(hp2) then
begin
hp.next:=hp2;
hp.previous:=hp2.previous;
if assigned(hp2.previous) then
hp2.previous.next:=hp;
hp2.previous:=hp;
end
else
current_module._exports.concat(hp);
end;
procedure texportlibbeos.exportvar(hp : texported_item);
begin
hp.is_var:=true;
exportprocedure(hp);
end;
procedure texportlibbeos.generatelib;
var
hp2 : texported_item;
begin
hp2:=texported_item(current_module._exports.first);
while assigned(hp2) do
begin
if not hp2.is_var then
begin
{$ifdef i386}
{ place jump in codesegment }
codesegment.concat(Tai_align.Create_op(4,$90));
codeSegment.concat(Tai_symbol.Createname_global(hp2.name^,0));
codeSegment.concat(Taicpu.Op_sym(A_JMP,S_NO,newasmsymbol(hp2.sym.mangledname)));
codeSegment.concat(Tai_symbol_end.Createname(hp2.name^));
{$endif i386}
end
else
Message1(parser_e_no_export_of_variables_for_target,'beos');
hp2:=texported_item(hp2.next);
end;
end;
{*****************************************************************************
TLINKERBEOS
*****************************************************************************}
Constructor TLinkerBeos.Create;
begin
Inherited Create;
LibrarySearchPath.AddPath(GetEnv('BELIBRARIES'),true); {format:'path1;path2;...'}
end;
procedure TLinkerBeOS.SetDefaultInfo;
begin
with Info do
begin
ExeCmd[1]:='sh $RES $EXE $OPT $STATIC $STRIP -L.';
{ ExeCmd[1]:='sh $RES $EXE $OPT $DYNLINK $STATIC $STRIP -L.';}
DllCmd[1]:='sh $RES $EXE $OPT -L.';
{ DllCmd[1]:='sh $RES $EXE $OPT -L. -g -nostart -soname=$EXE';
} DllCmd[2]:='strip --strip-unneeded $EXE';
{ DynamicLinker:='/lib/ld-beos.so.2';}
end;
end;
function TLinkerBeOS.WriteResponseFile(isdll:boolean;makelib:boolean) : Boolean;
Var
linkres : TLinkRes;
i : integer;
cprtobj,
prtobj : string[80];
HPath : TStringListItem;
s : string;
linklibc : boolean;
begin
WriteResponseFile:=False;
{ set special options for some targets }
linklibc:=(SharedLibFiles.Find('root')<>nil);
prtobj:='prt0';
cprtobj:='cprt0';
if (cs_profile in aktmoduleswitches) or
(not SharedLibFiles.Empty) then
begin
AddSharedLibrary('root');
linklibc:=true;
end;
if (not linklibc) and makelib then
begin
linklibc:=true;
cprtobj:='dllprt.o';
end;
if linklibc then
prtobj:=cprtobj;
{ Open link.res file }
LinkRes:=TLinkRes.Create(outputexedir+Info.ResName);
if not isdll then
LinkRes.Add('ld -o $1 $2 $3 $4 $5 $6 $7 $8 $9 \')
else
LinkRes.Add('ld -o $1 -e 0 $2 $3 $4 $5 $6 $7 $8 $9\');
LinkRes.Add('-m elf_i386_be -shared -Bsymbolic \');
{ Write path to search libraries }
HPath:=TStringListItem(current_module.locallibrarysearchpath.First);
while assigned(HPath) do
begin
LinkRes.Add('-L'+HPath.Str+' \');
HPath:=TStringListItem(HPath.Next);
end;
HPath:=TStringListItem(LibrarySearchPath.First);
while assigned(HPath) do
begin
LinkRes.Add('-L'+HPath.Str+' \');
HPath:=TStringListItem(HPath.Next);
end;
{ try to add crti and crtbegin if linking to C }
if linklibc then
begin
if librarysearchpath.FindFile('crti.o',s) then
LinkRes.AddFileName(s+' \');
if librarysearchpath.FindFile('crtbegin.o',s) then
LinkRes.AddFileName(s+' \');
{ s:=librarysearchpath.FindFile('start_dyn.o',found)+'start_dyn.o';
if found then LinkRes.AddFileName(s+' \');}
if prtobj<>'' then
LinkRes.AddFileName(FindObjectFile(prtobj,'')+' \');
if isdll then
LinkRes.AddFileName(FindObjectFile('func.o','')+' \');
if librarysearchpath.FindFile('init_term_dyn.o',s) then
LinkRes.AddFileName(s+' \');
end
else
begin
if prtobj<>'' then
LinkRes.AddFileName(FindObjectFile(prtobj,'')+' \');
end;
{ main objectfiles }
while not ObjectFiles.Empty do
begin
s:=ObjectFiles.GetFirst;
if s<>'' then
LinkRes.AddFileName(s+' \');
end;
{ LinkRes.Add('-lroot \');
LinkRes.Add('/boot/develop/tools/gnupro/lib/gcc-lib/i586-beos/2.9-beos-991026/crtend.o \');
LinkRes.Add('/boot/develop/lib/x86/crtn.o \');}
{ Write staticlibraries }
if not StaticLibFiles.Empty then
begin
While not StaticLibFiles.Empty do
begin
S:=StaticLibFiles.GetFirst;
LinkRes.AddFileName(s+' \')
end;
end;
{ Write sharedlibraries like -l<lib> }
if not SharedLibFiles.Empty then
begin
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
linklibc:=true;
end;
end;
{ be sure that libc is the last lib }
{ if linklibc then
LinkRes.Add('-lroot');}
{ if linkdynamic and (Info.DynamicLinker<>'') then
LinkRes.AddFileName(Info.DynamicLinker);}
end;
if isdll then
LinkRes.Add('-lroot \');
{ objects which must be at the end }
if linklibc then
begin
if librarysearchpath.FindFile('crtend.o',s) then
LinkRes.AddFileName(s+' \');
if librarysearchpath.FindFile('crtn.o',s) then
LinkRes.AddFileName(s+' \');
end;
{ Write and Close response }
linkres.Add(' ');
linkres.writetodisk;
linkres.free;
WriteResponseFile:=True;
end;
function TLinkerBeOS.MakeExecutable:boolean;
var
binstr,
cmdstr : string;
success : boolean;
{ DynLinkStr : string[60];}
StaticStr,
StripStr : string[40];
begin
if not(cs_link_extern in aktglobalswitches) then
Message1(exec_i_linking,current_module.exefilename^);
{ Create some replacements }
StaticStr:='';
StripStr:='';
{ DynLinkStr:='';}
if (cs_link_staticflag in aktglobalswitches) then
StaticStr:='-static';
if (cs_link_strip in aktglobalswitches) then
StripStr:='-s';
{ If (cs_profile in aktmoduleswitches) or
((Info.DynamicLinker<>'') and (not SharedLibFiles.Empty)) then
DynLinkStr:='-dynamic-linker='+Info.DynamicLinker;}
{ Write used files and libraries }
WriteResponseFile(false,false);
{ Call linker }
SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
Replace(cmdstr,'$EXE',current_module.exefilename^);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$RES',outputexedir+Info.ResName);
Replace(cmdstr,'$STATIC',StaticStr);
Replace(cmdstr,'$STRIP',StripStr);
{ Replace(cmdstr,'$DYNLINK',DynLinkStr);}
success:=DoExec(FindUtil(BinStr),CmdStr,true,false);
{ Remove ReponseFile }
if (success) and not(cs_link_extern in aktglobalswitches) then
RemoveFile(outputexedir+Info.ResName);
MakeExecutable:=success; { otherwise a recursive call to link method }
end;
Function TLinkerBeOS.MakeSharedLibrary:boolean;
var
binstr,
cmdstr : string;
success : boolean;
begin
MakeSharedLibrary:=false;
if not(cs_link_extern in aktglobalswitches) then
Message1(exec_i_linking,current_module.sharedlibfilename^);
{ Write used files and libraries }
WriteResponseFile(true,true);
{ Call linker }
SplitBinCmd(Info.DllCmd[1],binstr,cmdstr);
Replace(cmdstr,'$EXE',current_module.sharedlibfilename^);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$RES',outputexedir+Info.ResName);
success:=DoExec(FindUtil(binstr),cmdstr,true,false);
{ Strip the library ? }
if success and (cs_link_strip in aktglobalswitches) then
begin
SplitBinCmd(Info.DllCmd[2],binstr,cmdstr);
Replace(cmdstr,'$EXE',current_module.sharedlibfilename^);
success:=DoExec(FindUtil(binstr),cmdstr,true,false);
end;
{ Remove ReponseFile }
if (success) and not(cs_link_extern in aktglobalswitches) then
RemoveFile(outputexedir+Info.ResName);
MakeSharedLibrary:=success; { otherwise a recursive call to link method }
end;
{*****************************************************************************
Initialize
*****************************************************************************}
{$ifdef i386}
const
target_i386_beos_info : ttargetinfo =
(
target : target_i386_BeOS;
name : 'Beos for i386';
shortname : 'Beos';
flags : [];
cpu : i386;
unit_env : 'BEOSUNITS';
extradefines : '';
sharedlibext : '.so';
staticlibext : '.a';
sourceext : '.pp';
pasext : '.pas';
exeext : '';
defext : '.def';
scriptext : '.sh';
smartext : '.sl';
unitext : '.ppu';
unitlibext : '.ppl';
asmext : '.s';
objext : '.o';
resext : '.res';
resobjext : '.or';
staticlibprefix : 'libp';
sharedlibprefix : 'lib';
Cprefix : '';
newline : #10;
assem : as_i386_as;
assemextern : as_i386_as;
link : ld_i386_beos;
linkextern : ld_i386_beos;
ar : ar_gnu_ar;
res : res_none;
endian : endian_little;
stackalignment : 4;
maxCrecordalignment : 4;
size_of_pointer : 4;
size_of_longint : 4;
heapsize : 256*1024;
maxheapsize : 32768*1024;
stacksize : 8192;
DllScanSupported:false;
use_bound_instruction : false;
use_function_relative_addresses : true
);
{$endif i386}
initialization
{$ifdef i386}
RegisterLinker(ld_i386_beos,TLinkerbeos);
RegisterImport(target_i386_beos,timportlibbeos);
RegisterExport(target_i386_beos,texportlibbeos);
RegisterTarget(target_i386_beos_info);
{$endif i386}
end.
{
$Log$
Revision 1.2 2001-06-03 15:15:31 peter
* dllprt0 stub for linux shared libs
* pass -init and -fini for linux shared libs
* libprefix splitted into staticlibprefix and sharedlibprefix
Revision 1.1 2001/06/02 19:29:37 peter
* beos target
}
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