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e2a6678591
fpc/compiler/systems/t_bsd.pas
peter e7459f5466 * heap and heapsize removed 
* checkpointer fixes
2004-10-25 15:38:41 +00:00

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{
$Id$
Copyright (c) 1998-2002 by Peter Vreman (original Linux)
(c) 2000 by Marco van de Voort (FreeBSD mods)
This unit implements support import,export,link routines
for the (i386)FreeBSD 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_bsd;
{$i fpcdefs.inc}
interface
implementation
uses
{$ifdef gdb}
gdb,
{$endif gdb}
cutils,cclasses,
verbose,systems,globtype,globals,
symconst,script,
fmodule,aasmbase,aasmtai,aasmcpu,cpubase,symsym,symdef,
import,export,link,i_bsd,
cgutils,cgbase,cgobj,cpuinfo;
type
tdarwinimported_item = class(timported_item)
procdef : tprocdef;
end;
timportlibdarwin=class(timportlib)
procedure preparelib(const s:string);override;
procedure importprocedure(aprocdef:tprocdef;const module:string;index:longint;const name:string);override;
procedure importvariable(vs:tvarsym;const name,module:string);override;
procedure generatelib;override;
procedure generatesmartlib;override;
end;
timportlibbsd=class(timportlib)
procedure preparelib(const s:string);override;
procedure importprocedure(aprocdef:tprocdef;const module:string;index:longint;const name:string);override;
procedure importvariable(vs:tvarsym;const name,module:string);override;
procedure generatelib;override;
end;
texportlibbsd=class(texportlib)
procedure preparelib(const s : string);override;
procedure exportprocedure(hp : texported_item);override;
procedure exportvar(hp : texported_item);override;
procedure generatelib;override;
end;
tlinkerbsd=class(texternallinker)
private
LdSupportsNoResponseFile : boolean;
LibrarySuffix : Char;
Function WriteResponseFile(isdll:boolean) : Boolean;
public
constructor Create;override;
procedure SetDefaultInfo;override;
function MakeExecutable:boolean;override;
function MakeSharedLibrary:boolean;override;
end;
{*****************************************************************************
TIMPORTLIBDARWIN
*****************************************************************************}
procedure timportlibdarwin.preparelib(const s : string);
begin
if not(assigned(importssection)) then
importssection:=TAAsmoutput.create;
end;
procedure timportlibdarwin.importprocedure(aprocdef:tprocdef;const module : string;index : longint;const name : string);
begin
{ insert sharedlibrary }
{ current_module.linkothersharedlibs.add(SplitName(module),link_allways); }
{ force the mangledname }
if assigned(aprocdef) then
begin
if (aprocdef.proccalloption in [pocall_cdecl,pocall_cppdecl]) then
aprocdef.setmangledname(target_info.Cprefix+name)
else
aprocdef.setmangledname(name);
end;
end;
procedure timportlibdarwin.importvariable(vs:tvarsym;const name,module:string);
begin
{ insert sharedlibrary }
{ current_module.linkothersharedlibs.add(SplitName(module),link_allways); }
{ the rest is handled in the nppcld.pas tppcloadnode }
vs.set_mangledname(name);
end;
procedure timportlibdarwin.generatesmartlib;
begin
generatelib;
end;
procedure timportlibdarwin.generatelib;
begin
end;
{*****************************************************************************
TIMPORTLIBBSD
*****************************************************************************}
procedure timportlibbsd.preparelib(const s : string);
begin
end;
procedure timportlibbsd.importprocedure(aprocdef:tprocdef;const 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
begin
aprocdef.setmangledname(name);
end
else
message(parser_e_empty_import_name);
end;
procedure timportlibbsd.importvariable(vs:tvarsym;const name,module:string);
begin
{ insert sharedlibrary }
current_module.linkothersharedlibs.add(SplitName(module),link_allways);
{ reset the mangledname and turn off the dll_var option }
vs.set_mangledname(name);
exclude(vs.varoptions,vo_is_dll_var);
end;
procedure timportlibbsd.generatelib;
begin
end;
{*****************************************************************************
TEXPORTLIBBSD
*****************************************************************************}
procedure texportlibbsd.preparelib(const s:string);
begin
end;
procedure texportlibbsd.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,'freebsd');
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 texportlibbsd.exportvar(hp : texported_item);
begin
hp.is_var:=true;
exportprocedure(hp);
end;
procedure texportlibbsd.generatelib;
var
hp2 : texported_item;
begin
hp2:=texported_item(current_module._exports.first);
while assigned(hp2) do
begin
if (not hp2.is_var) and
(hp2.sym.typ=procsym) then
begin
{ the manglednames can already be the same when the procedure
is declared with cdecl }
if tprocsym(hp2.sym).first_procdef.mangledname<>hp2.name^ then
begin
{$ifdef i386}
{ place jump in codesegment }
codesegment.concat(Tai_align.Create_op(4,$90));
codeSegment.concat(Tai_symbol.Createname_global(hp2.name^,AT_FUNCTION,0));
codeSegment.concat(Taicpu.Op_sym(A_JMP,S_NO,objectlibrary.newasmsymbol(tprocsym(hp2.sym).first_procdef.mangledname,AB_EXTERNAL,AT_FUNCTION)));
codeSegment.concat(Tai_symbol_end.Createname(hp2.name^));
{$endif i386}
end;
end
else
Message1(parser_e_no_export_of_variables_for_target,'freebsd');
hp2:=texported_item(hp2.next);
end;
end;
{*****************************************************************************
TLINKERLINUX
*****************************************************************************}
Constructor TLinkerBSD.Create;
begin
Inherited Create;
if not Dontlinkstdlibpath Then
if (target_info.system <> system_powerpc_darwin) then
LibrarySearchPath.AddPath('/lib;/usr/lib;/usr/X11R6/lib',true)
else
{ Mac OS X doesn't have a /lib }
LibrarySearchPath.AddPath('/usr/lib',true)
end;
procedure TLinkerBSD.SetDefaultInfo;
{
This will also detect which libc version will be used
}
begin
LibrarySuffix:=' ';
LdSupportsNoResponseFile := (target_info.system in [system_m68k_netbsd,system_powerpc_darwin]);
with Info do
begin
if LdSupportsNoResponseFile then
begin
ExeCmd[1]:='ld $OPT $DYNLINK $STATIC $STRIP -L. -o $EXE `cat $RES`';
end
else
ExeCmd[1]:='ld $OPT $DYNLINK $STATIC $STRIP -L. -o $EXE $RES';
DllCmd[1]:='ld $OPT -shared -L. -o $EXE $RES';
DllCmd[2]:='strip --strip-unneeded $EXE';
{ first try glibc2 }
{$ifdef GLIBC2} {Keep linux code in place. FBSD might go to a different
glibc too once}
DynamicLinker:='/lib/ld-linux.so.2';
if FileExists(DynamicLinker) then
begin
Glibc2:=true;
{ Check for 2.0 files, else use the glibc 2.1 stub }
if FileExists('/lib/ld-2.0.*') then
Glibc21:=false
else
Glibc21:=true;
end
else
DynamicLinker:='/lib/ld-linux.so.1';
{$else}
DynamicLinker:='';
{$endif}
end;
end;
Function TLinkerBSD.WriteResponseFile(isdll:boolean) : Boolean;
Var
linkres : TLinkRes;
i : longint;
cprtobj,
gprtobj,
prtobj : string[80];
HPath : TStringListItem;
s,s1,s2 : string;
linkpthread,
linkdynamic,
linklibc : boolean;
Fl1,Fl2 : Boolean;
begin
WriteResponseFile:=False;
{ set special options for some targets }
if target_info.system <> system_powerpc_darwin then
begin
linkdynamic:=not(SharedLibFiles.empty);
linklibc:=(SharedLibFiles.Find('c')<>nil);
linkpthread:=(SharedLibFiles.Find('pthread')<>nil);
if (target_info.system =system_i386_freebsd) and linkpthread Then
Begin
if not (cs_link_pthread in aktglobalswitches) Then
begin
{delete pthreads from list, in this case it is in libc_r}
SharedLibFiles.Remove(SharedLibFiles.Find('pthread').str);
LibrarySuffix:='r';
end;
End;
prtobj:='prt0';
cprtobj:='cprt0';
gprtobj:='gprt0';
if cs_profile in aktmoduleswitches then
begin
prtobj:=gprtobj;
AddSharedLibrary('c');
LibrarySuffix:='p';
linklibc:=true;
end
else
begin
if linklibc then
prtobj:=cprtobj;
end;
end
else
begin
{ for darwin: always link dynamically against libc<62>}
linklibc := true;
if not(cs_profile in aktmoduleswitches) then
prtobj:='/usr/lib/crt1.o'
else
prtobj:='/usr/lib/gcrt1.o';
end;
{ Open link.res file }
LinkRes:=TLinkRes.Create(outputexedir+Info.ResName);
{ Write path to search libraries }
HPath:=TStringListItem(current_module.locallibrarysearchpath.First);
while assigned(HPath) do
begin
if LdSupportsNoResponseFile then
LinkRes.Add('-L'+HPath.Str)
else
LinkRes.Add('SEARCH_DIR('+HPath.Str+')');
HPath:=TStringListItem(HPath.Next);
end;
HPath:=TStringListItem(LibrarySearchPath.First);
while assigned(HPath) do
begin
if LdSupportsNoResponseFile then
LinkRes.Add('-L'+HPath.Str)
else
LinkRes.Add('SEARCH_DIR('+HPath.Str+')');
HPath:=TStringListItem(HPath.Next);
end;
if not LdSupportsNoResponseFile then
LinkRes.Add('INPUT(');
{ add objectfiles, start with prt0 always }
if prtobj<>'' then
LinkRes.AddFileName(FindObjectFile(prtobj,'',false));
{ try to add crti and crtbegin if linking to C }
if linklibc and
(target_info.system <> system_powerpc_darwin) then
begin
if librarysearchpath.FindFile('crtbegin.o',s) then
LinkRes.AddFileName(s);
if librarysearchpath.FindFile('crti.o',s) then
LinkRes.AddFileName(s);
end;
{ main objectfiles }
while not ObjectFiles.Empty do
begin
s:=ObjectFiles.GetFirst;
if s<>'' then
LinkRes.AddFileName(s);
end;
if not LdSupportsNoResponseFile then
LinkRes.Add(')');
{ Write staticlibraries }
if not StaticLibFiles.Empty then
begin
if not LdSupportsNoResponseFile then
LinkRes.Add('GROUP(');
While not StaticLibFiles.Empty do
begin
S:=StaticLibFiles.GetFirst;
LinkRes.AddFileName(s)
end;
if not LdSupportsNoResponseFile then
LinkRes.Add(')');
end;
{ Write sharedlibraries like -l<lib>, also add the needed dynamic linker
here to be sure that it gets linked this is needed for glibc2 systems (PFV) }
if not SharedLibFiles.Empty then
begin
if not LdSupportsNoResponseFile then
LinkRes.Add('INPUT(');
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;
linkdynamic:=false; { libc will include the ld-linux for us }
end;
end;
{ be sure that libc is the last lib }
if linklibc then
Begin
If LibrarySuffix=' ' Then
LinkRes.Add('-lc')
else
LinkRes.Add('-lc_'+LibrarySuffix);
If LibrarySuffix='r' Then
LinkRes.Add('-lc');
end;
{ when we have -static for the linker the we also need libgcc }
if (cs_link_staticflag in aktglobalswitches) then
LinkRes.Add('-lgcc');
if linkdynamic and (Info.DynamicLinker<>'') then
LinkRes.AddFileName(Info.DynamicLinker);
if not LdSupportsNoResponseFile then
LinkRes.Add(')');
end;
{ objects which must be at the end }
if linklibc and
(target_info.system <> system_powerpc_darwin) then
begin
Fl1:=librarysearchpath.FindFile('crtend.o',s1);
Fl2:=librarysearchpath.FindFile('crtn.o',s2);
if Fl1 or Fl2 then
begin
LinkRes.Add('INPUT(');
If Fl1 Then
LinkRes.AddFileName(s1);
If Fl2 Then
LinkRes.AddFileName(s2);
LinkRes.Add(')');
end;
end;
{ Write and Close response }
linkres.writetodisk;
linkres.Free;
WriteResponseFile:=True;
end;
function TLinkerBSD.MakeExecutable:boolean;
var
binstr : String;
cmdstr : TCmdStr;
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
begin
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_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,'$EXE',current_module.exefilename^);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$RES',outputexedir+Info.ResName);
Replace(cmdstr,'$STATIC',StaticStr);
Replace(cmdstr,'$STRIP',StripStr);
Replace(cmdstr,'$DYNLINK',DynLinkStr);
success:=DoExec(FindUtil(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
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);
{ Call linker }
SplitBinCmd(Info.DllCmd[1],binstr,cmdstr);
Replace(cmdstr,'$EXE',current_module.sharedlibfilename^);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$RES',outputexedir+Info.ResName);
success:=DoExec(FindUtil(utilsprefix+binstr),cmdstr,true,false);
{ Strip the library ? }
if success and (cs_link_strip in aktglobalswitches) then
begin
SplitBinCmd(Info.DllCmd[2],binstr,cmdstr);
Replace(cmdstr,'$EXE',current_module.sharedlibfilename^);
success:=DoExec(FindUtil(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.
{
$Log$
Revision 1.23 2004-10-25 15:38:41 peter
* heap and heapsize removed
* checkpointer fixes
Revision 1.22 2004/10/14 18:16:17 mazen
* USE_SYSUTILS merged successfully : cycles with and without defines
* Need to be optimized in performance
Revision 1.21 2004/09/22 15:25:14 mazen
* Fix error committing : previous version must be in branch USE_SYSUTILS
Revision 1.19 2004/06/20 08:55:32 florian
* logs truncated
Revision 1.18 2004/06/16 20:07:11 florian
* dwarf branch merged
Revision 1.17 2004/06/08 17:14:49 jonas
* use -x instead of -s for stripping under Mac OS X (-s strips too much
sometimes)
Revision 1.16 2004/06/02 07:03:49 jonas
- disabled automatic adding of libraries from "external lib name 'xxx'"
for now (until we have proper framework support)
Revision 1.15 2004/05/31 18:08:41 jonas
* changed calling of external procedures to be the same as under gcc
(don't worry about all the generated stubs, they're optimized away
by the linker)
-> side effect: no need anymore to use special declarations for
external C functions under Darwin compared to other platforms
(it's still necessary for variables though)
Revision 1.14.2.7 2004/05/18 19:30:28 marco
* duplicate entry removed
}
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