* fixed line breaks

rtl/unix/sysunix.inc

@@ -1,883 +1,886 @@
-{
-    $Id$
-    This file is part of the Free Pascal run time library.
-    Copyright (c) 1999-2000 by Michael Van Canneyt,
-    member of the Free Pascal development team.
-
-    This is the core of the system unit *nix systems (now FreeBSD
-     and Unix).
-
-    See the file COPYING.FPC, included in this distribution,
-    for details about the copyright.
-
-    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.
-
- **********************************************************************}
-
-{ These things are set in the makefile, }
-{ But you can override them here.}
-
-{ If you use an aout system, set the conditional AOUT}
-{ $Define AOUT}
-
-{$I system.inc}
-
-{ used in syscall to report errors.}
-var
-  Errno : longint;
-
-{ Include constant and type definitions }
-{$i errno.inc    }  { Error numbers                 }
-{$i sysnr.inc    }  { System call numbers           }
-{$i sysconst.inc }  { Miscellaneous constants       }
-{$i systypes.inc }  { Types needed for system calls }
-
-{ Read actual system call definitions. }
-{$i signal.inc}
-{$i syscalls.inc }
-
-
-{*****************************************************************************
-                       Misc. System Dependent Functions
-*****************************************************************************}
-
-{$ifdef I386}
-{ this should be defined in i386 directory !! PM }
-const
-  fpucw : word = $1332;
-  FPU_Invalid = 1;
-  FPU_Denormal = 2;
-  FPU_DivisionByZero = 4;
-  FPU_Overflow = 8;
-  FPU_Underflow = $10;
-  FPU_StackUnderflow = $20;
-  FPU_StackOverflow = $40;
-
-{$endif I386}
-
-Procedure ResetFPU;
-begin
-{$ifdef I386}
-  asm
-    fninit
-    fldcw   fpucw
-  end;
-{$endif I386}
-end;
-
-
-procedure prthaltproc;external name '_haltproc';
-
-Procedure System_exit;
-Begin
-  prthaltproc;
-End;
-
-
-Function ParamCount: Longint;
-Begin
-  Paramcount:=argc-1;
-End;
-
-
-Function ParamStr(l: Longint): String;
-var
-  link,
-  hs : string;
-  i : longint;
-begin
-  if l=0 then
-   begin
-     str(sys_getpid,hs);
-     {$ifdef FreeBSD}
-      hs:='/proc/'+hs+'/file'#0;
-     {$else}
-      hs:='/proc/'+hs+'/exe'#0;
-     {$endif}
-     i:=Sys_readlink(@hs[1],@link[1],high(link));
-     { it must also be an absolute filename, linux 2.0 points to a memory
-       location so this will skip that }
-     if (i>0) and (link[1]='/') then
-      begin
-        link[0]:=chr(i);
-        paramstr:=link;
-      end
-     else
-      paramstr:=strpas(argv[0]);
-   end
-  else
-   if (l>0) and (l<argc) then
-    paramstr:=strpas(argv[l])
-  else
-    paramstr:='';
-end;
-
-
-Procedure Randomize;
-Begin
-  randseed:=sys_time;
-End;
-
-
-{*****************************************************************************
-                              Heap Management
-*****************************************************************************}
-
-var
-  _HEAP : pointer;external name 'HEAP';
-  _HEAPSIZE : longint;external name 'HEAPSIZE';
-
-function getheapstart:pointer;assembler;
-{$undef fpc_getheapstart_ok}
-{$ifdef i386}
-{$define fpc_getheapstart_ok}
-asm
-        leal    _HEAP,%eax
-end ['EAX'];
-{$endif i386}
-{$ifdef m68k}
-{$define fpc_getheapstart_ok}
-asm
-        lea.l   _HEAP,a0
-        move.l  a0,d0
-end['A0','D0'];
-{$endif m68k}
-{$ifdef powerpc}
-{$define fpc_getheapstart_ok}
-asm
-        lis r3,HEAP@ha
-        la r3,HEAP@l(r3)
-end['R3'];
-{$endif powerpc}
-{$ifndef fpc_getheapstart_ok}
-asm
-end;
-{$error Getheapstart code is not implemented }
-{$endif not fpc_getheapstart_ok}
-
-
-function getheapsize:longint;assembler;
-{$undef fpc_getheapsize_ok}
-{$ifdef i386}
-{$define fpc_getheapsize_ok}
-asm
-        movl    _HEAPSIZE,%eax
-end ['EAX'];
-{$endif i386}
-{$ifdef m68k}
-{$define fpc_getheapsize_ok}
-asm
-	move.l   _HEAPSIZE,d0
-end ['D0'];
-{$endif m68k}
-{$ifdef powerpc}
-{$define fpc_getheapsize_ok}
-asm
-        lis r9,HEAPSIZE@ha
-        lwz r3,HEAPSIZE@l(r9)
-end ['R0','R9'];
-{$endif powerpc}
-{$ifndef fpc_getheapsize_ok}
-asm
-end;
-{$error Getheapsize code is not implemented }
-{$endif not fpc_getheapsize_ok}
-
-
-Function sbrk(size : longint) : Longint;
-begin
-  sbrk:=Sys_mmap(0,Size,3,MAP_PRIVATE+MAP_ANONYMOUS,-1,0);
-  if sbrk<>-1 then
-   errno:=0;
-  {! It must be -1, not 0 as before, see heap.inc. Should be in sysmmap?}
-end;
-
-
-{ include standard heap management }
-{$I heap.inc}
-
-
-{*****************************************************************************
-                          Low Level File Routines
-*****************************************************************************}
-
-{
-  The lowlevel file functions should take care of setting the InOutRes to the
-  correct value if an error has occured, else leave it untouched
-}
-
-Procedure Errno2Inoutres;
-{
-  Convert ErrNo error to the correct Inoutres value
-}
-
-begin
-  if ErrNo=0 then { Else it will go through all the cases }
-   exit;
-  If errno<0 then Errno:=-errno;
-  case ErrNo of
-   Sys_ENFILE,
-   Sys_EMFILE : Inoutres:=4;
-   Sys_ENOENT : Inoutres:=2;
-    Sys_EBADF : Inoutres:=6;
-   Sys_ENOMEM,
-   Sys_EFAULT : Inoutres:=217;
-   Sys_EINVAL : Inoutres:=218;
-    Sys_EPIPE,
-    Sys_EINTR,
-      Sys_EIO,
-   Sys_EAGAIN,
-   Sys_ENOSPC : Inoutres:=101;
- Sys_ENAMETOOLONG,
-    Sys_ELOOP,
-  Sys_ENOTDIR : Inoutres:=3;
-    Sys_EROFS,
-   Sys_EEXIST,
-   Sys_EISDIR,
-   Sys_ENOTEMPTY,
-   Sys_EACCES : Inoutres:=5;
-  Sys_ETXTBSY : Inoutres:=162;
-  else
-    InOutRes := Integer(Errno);
-  end;
-end;
-
-
-Procedure Do_Close(Handle:Longint);
-Begin
-  sys_close(Handle);
-  {Errno2Inoutres;}
-End;
-
-
-Procedure Do_Erase(p:pchar);
-{$ifdef BSD}
- var FileInfo : Stat;
-{$endif}
-
-Begin
-  {$ifdef BSD} {or POSIX}
-  { verify if the filename is actually a directory }
-  { if so return error and do nothing, as defined  }
-  { by POSIX                                       }
-  if sys_stat(p,fileinfo)<0 then
-   begin
-     Errno2Inoutres;
-     exit;
-   end;
-  {$ifdef BSD}
-   if (fileinfo.mode and STAT_IFMT)=STAT_IFDIR then
-  {$else}
-   if s_ISDIR(fileinfo.st_mode) then
-  {$endif}
-   begin
-     InOutRes := 2;
-     exit;
-   end;
-  {$endif}
-  sys_unlink(p);
-  Errno2Inoutres;
-  {$ifdef Linux}
-  { tp compatible result }
-  if (Errno=Sys_EISDIR) then
-   InOutRes:=2;
-  {$endif}
-End;
-
-
-Procedure Do_Rename(p1,p2:pchar);
-Begin
-  sys_rename(p1,p2);
-  Errno2Inoutres;
-End;
-
-Function Do_Write(Handle,Addr,Len:Longint):longint;
-Begin
-  repeat
-    Do_Write:=sys_write(Handle,pchar(addr),len);
-  until ErrNo<>Sys_EINTR;
-  Errno2Inoutres;
-  if Do_Write<0 then
-   Do_Write:=0;
-End;
-
-
-Function Do_Read(Handle,Addr,Len:Longint):Longint;
-Begin
-  repeat
-    Do_Read:=sys_read(Handle,pchar(addr),len);
-  until ErrNo<>Sys_EINTR;
-  Errno2Inoutres;
-  if Do_Read<0 then
-   Do_Read:=0;
-End;
-
-
-Function Do_FilePos(Handle: Longint): Longint;
-Begin
-  Do_FilePos:=sys_lseek(Handle, 0, Seek_Cur);
-  Errno2Inoutres;
-End;
-
-
-Procedure Do_Seek(Handle,Pos:Longint);
-Begin
-  sys_lseek(Handle, pos, Seek_set);
-  errno2inoutres;
-End;
-
-
-Function Do_SeekEnd(Handle:Longint): Longint;
-begin
-  Do_SeekEnd:=sys_lseek(Handle,0,Seek_End);
-  errno2inoutres;
-end;
-
-Function Do_FileSize(Handle:Longint): Longint;
-var
-  Info : Stat;
-Begin
-  if sys_fstat(handle,info)=0 then
-   Do_FileSize:=Info.Size
-  else
-   Do_FileSize:=0;
-  Errno2Inoutres;
-End;
-
-
-Procedure Do_Truncate(Handle,fPos:longint);
-begin
-  sys_ftruncate(handle,fpos);
-  Errno2Inoutres;
-end;
-
-
-Procedure Do_Open(var f;p:pchar;flags:longint);
-{
-  FileRec and textrec have both Handle and mode as the first items so
-  they could use the same routine for opening/creating.
-  when (flags and $100)   the file will be append
-  when (flags and $1000)  the file will be truncate/rewritten
-  when (flags and $10000) there is no check for close (needed for textfiles)
-}
-var
-  oflags : longint;
-
-Begin
-{ close first if opened }
-  if ((flags and $10000)=0) then
-   begin
-     case FileRec(f).mode of
-      fminput,fmoutput,fminout : Do_Close(FileRec(f).Handle);
-      fmclosed : ;
-     else
-      begin
-        inoutres:=102; {not assigned}
-        exit;
-      end;
-     end;
-   end;
-{ reset file Handle }
-  FileRec(f).Handle:=UnusedHandle;
-{ We do the conversion of filemodes here, concentrated on 1 place }
-  case (flags and 3) of
-   0 : begin
-         oflags :=Open_RDONLY;
-         FileRec(f).mode:=fminput;
-       end;
-   1 : begin
-         oflags :=Open_WRONLY;
-         FileRec(f).mode:=fmoutput;
-       end;
-   2 : begin
-         oflags :=Open_RDWR;
-         FileRec(f).mode:=fminout;
-       end;
-  end;
-  if (flags and $1000)=$1000 then
-   oflags:=oflags or (Open_CREAT or Open_TRUNC)
-  else
-   if (flags and $100)=$100 then
-    oflags:=oflags or (Open_APPEND);
-{ empty name is special }
-  if p[0]=#0 then
-   begin
-     case FileRec(f).mode of
-       fminput :
-         FileRec(f).Handle:=StdInputHandle;
-       fminout, { this is set by rewrite }
-       fmoutput :
-         FileRec(f).Handle:=StdOutputHandle;
-       fmappend :
-         begin
-           FileRec(f).Handle:=StdOutputHandle;
-           FileRec(f).mode:=fmoutput; {fool fmappend}
-         end;
-     end;
-     exit;
-   end;
-{ real open call }
-  FileRec(f).Handle:=sys_open(p,oflags,438);
-  if (ErrNo=Sys_EROFS) and ((OFlags and Open_RDWR)<>0) then
-   begin
-     Oflags:=Oflags and not(Open_RDWR);
-     FileRec(f).Handle:=sys_open(p,oflags,438);
-   end;
-  Errno2Inoutres;
-End;
-
-
-Function Do_IsDevice(Handle:Longint):boolean;
-{
-  Interface to Unix ioctl call.
-  Performs various operations on the filedescriptor Handle.
-  Ndx describes the operation to perform.
-  Data points to data needed for the Ndx function. The structure of this
-  data is function-dependent.
-}
-var
-  Data : array[0..255] of byte; {Large enough for termios info}
-begin
-  Do_IsDevice:=(sys_ioctl(handle,IOCTL_TCGETS,@data)<>-1);
-end;
-
-
-{*****************************************************************************
-                           UnTyped File Handling
-*****************************************************************************}
-
-{$i file.inc}
-
-{*****************************************************************************
-                           Typed File Handling
-*****************************************************************************}
-
-{$i typefile.inc}
-
-{*****************************************************************************
-                           Text File Handling
-*****************************************************************************}
-
-{$DEFINE SHORT_LINEBREAK}
-{$DEFINE EXTENDED_EOF}
-
-{$i text.inc}
-
-{*****************************************************************************
-                           Directory Handling
-*****************************************************************************}
-
-Procedure MkDir(Const s: String);[IOCheck];
-Var
-  Buffer: Array[0..255] of Char;
-Begin
-  If (s='') or (InOutRes <> 0) then
-   exit;
-  Move(s[1], Buffer, Length(s));
-  Buffer[Length(s)] := #0;
-  sys_mkdir(@buffer, 511);
-  Errno2Inoutres;
-End;
-
-
-Procedure RmDir(Const s: String);[IOCheck];
-Var
-  Buffer: Array[0..255] of Char;
-Begin
-  if (s ='.') then
-    InOutRes := 16;
-  If (s='') or (InOutRes <> 0) then
-   exit;
-  Move(s[1], Buffer, Length(s));
-  Buffer[Length(s)] := #0;
-  sys_rmdir(@buffer);
-  {$ifdef BSD}
-    if (Errno=Sys_EINVAL) Then
-     InOutRes:=5
-    Else
-   {$endif}
-  Errno2Inoutres;
-End;
-
-
-Procedure ChDir(Const s: String);[IOCheck];
-Var
-  Buffer: Array[0..255] of Char;
-Begin
-  If (s='') or (InOutRes <> 0) then
-   exit;
-  Move(s[1], Buffer, Length(s));
-  Buffer[Length(s)] := #0;
-  sys_chdir(@buffer);
-  Errno2Inoutres;
-  { file not exists is path not found under tp7 }
-  if InOutRes=2 then
-   InOutRes:=3;
-End;
-
-
-procedure GetDir (DriveNr: byte; var Dir: ShortString);
-var
-  thisdir      : stat;
-  rootino,
-  thisino,
-  dotdotino    : longint;
-  rootdev,
-  thisdev,
-  dotdotdev    : dev_t;
-  thedir,dummy : string[255];
-  dirstream    : pdir;
-  d            : pdirent;
-  mountpoint,validdir : boolean;
-  predot       : string[255];
-begin
-  drivenr:=0;
-  dir:='';
-  thedir:='/'#0;
-  if sys_stat(@thedir[1],thisdir)<0 then
-   exit;
-  rootino:=thisdir.ino;
-  rootdev:=thisdir.dev;
-  thedir:='.'#0;
-  if sys_stat(@thedir[1],thisdir)<0 then
-   exit;
-  thisino:=thisdir.ino;
-  thisdev:=thisdir.dev;
-  { Now we can uniquely identify the current and root dir }
-  thedir:='';
-  predot:='';
-  while not ((thisino=rootino) and (thisdev=rootdev)) do
-   begin
-   { Are we on a mount point ? }
-     dummy:=predot+'..'#0;
-     if sys_stat(@dummy[1],thisdir)<0 then
-      exit;
-     dotdotino:=thisdir.ino;
-     dotdotdev:=thisdir.dev;
-     mountpoint:=(thisdev<>dotdotdev);
-   { Now, Try to find the name of this dir in the previous one }
-     dirstream:=opendir (@dummy[1]);
-     if dirstream=nil then
-      exit;
-     repeat
-       d:=sys_readdir (dirstream);
-       validdir:=false;
-       if (d<>nil) and
-          (not ((d^.name[0]='.') and ((d^.name[1]=#0) or ((d^.name[1]='.')
-                                 and (d^.name[2]=#0))))) and
-                                 (mountpoint or (d^.ino=thisino)) then
-        begin
-          dummy:=predot+'../'+strpas(@(d^.name[0]))+#0;
-          validdir:=not (sys_stat (@(dummy[1]),thisdir)<0);
-        end
-       else
-        validdir:=false;
-     until (d=nil) or
-           ((validdir) and (thisdir.dev=thisdev) and (thisdir.ino=thisino) );
-     { At this point, d.name contains the name of the current dir}
-     if (d<>nil) then
-      thedir:='/'+strpas(@(d^.name[0]))+thedir;
-     { closedir also makes d invalid }
-     if (closedir(dirstream)<0) or (d=nil) then
-      exit;
-     thisdev:=dotdotdev;
-     thisino:=dotdotino;
-     predot:=predot+'../';
-   end;
-{ Now rootino=thisino and rootdev=thisdev so we've reached / }
-  dir:=thedir
-end;
-
-{$ifdef Unix}
-{*****************************************************************************
-                             Thread Handling
-*****************************************************************************}
-
-{ include threading stuff, this is os independend part }
-{$I thread.inc}
-{$endif Unix}
-
-{*****************************************************************************
-                         SystemUnit Initialization
-*****************************************************************************}
-
-{$ifdef BSD}
- procedure SignalToRunerror(Sig: longint; SigContext: SigContextRec;someptr:pointer); cdecl;
-{$else}
- {$ifdef Solaris}
-  procedure SignalToRunerror(Sig: longint; SigContext: SigContextRec;someptr:pointer); cdecl;
- {$else}
-  procedure SignalToRunerror(Sig: longint; SigContext: SigContextRec); cdecl;
- {$endif}
-{$ENDIF}
-var
-
-  res,fpustate : word;
-begin
-  res:=0;
-  case sig of
-    SIGFPE :
-      begin
-    { this is not allways necessary but I don't know yet
-      how to tell if it is or not PM }
-{$ifdef I386}
-          fpustate:=0;
-          res:=200;
-  {$ifndef FreeBSD}
-           if assigned(SigContext.fpstate) then
-             fpuState:=SigContext.fpstate^.sw;
-  {$else}
-            fpustate:=SigContext.en_sw;
-    {$ifdef SYSTEM_DEBUG}
-           writeln('xx:',sigcontext.en_tw,' ',sigcontext.en_cw);
-    {$endif SYSTEM_DEBUG}
-  {$endif}
-  {$ifdef SYSTEM_DEBUG}
-          Writeln(stderr,'FpuState = ',FpuState);
-  {$endif SYSTEM_DEBUG}
-          if (FpuState and $7f) <> 0 then
-            begin
-              { first check te more precise options }
-              if (FpuState and FPU_DivisionByZero)<>0 then
-                res:=200
-              else if (FpuState and FPU_Overflow)<>0 then
-                res:=205
-              else if (FpuState and FPU_Underflow)<>0 then
-                res:=206
-              else if (FpuState and FPU_Denormal)<>0 then
-                res:=216
-              else if (FpuState and (FPU_StackOverflow or FPU_StackUnderflow))<>0 then
-                res:=207
-              else if (FpuState and FPU_Invalid)<>0 then
-                res:=216
-              else
-                res:=207;  {'Coprocessor Error'}
-            end;
-{$endif I386}
-          ResetFPU;
-        end;
-   SIGILL,
-   SIGBUS,
-   SIGSEGV :
-        res:=216;
-  end;
-{ give runtime error at the position where the signal was raised }
-  if res<>0 then
-   begin
-{$ifdef I386}
-     {$ifdef FreeBSD}
-      HandleErrorAddrFrame(res,SigContext.sc_eip,SigContext.sc_ebp);
-     {$else}
-      HandleErrorAddrFrame(res,SigContext.eip,SigContext.ebp);
-     {$endif}
-{$else}
-     HandleError(res);
-{$endif}
-   end;
-end;
-
-
-Procedure InstallSignals;
-const
-{$Ifndef BSD}
- {$ifdef solaris}
-  act: SigActionRec =(sa_flags:SA_SIGINFO;Handler:(sa:@signaltorunerror;sa_mask:0);
- {$else}
-  act: SigActionRec = (handler:(Sa:@SignalToRunError);sa_mask:0;sa_flags:0;
-                       Sa_restorer: NIL);
- {$endif}
-{$ELSE}
-   act: SigActionRec = (handler:(Sa:@SignalToRunError);sa_flags:SA_SIGINFO;
-    sa_mask:0);
-{$endif}
-
-  oldact: PSigActionRec = Nil;          {Probably not necessary anymore, now
-                                         VAR is removed}
-begin
-  ResetFPU;
-  SigAction(SIGFPE,@act,oldact);
-{$ifndef Solaris}
-  SigAction(SIGSEGV,@act,oldact);
-  SigAction(SIGBUS,@act,oldact);
-  SigAction(SIGILL,@act,oldact);
-{$endif}
-end;
-
-
-procedure SetupCmdLine;
-var
-  bufsize,
-  len,j,
-  size,i : longint;
-  found  : boolean;
-  buf    : array[0..1026] of char;
-
-  procedure AddBuf;
-  begin
-    reallocmem(cmdline,size+bufsize);
-    move(buf,cmdline[size],bufsize);
-    inc(size,bufsize);
-    bufsize:=0;
-  end;
-
-begin
-  size:=0;
-  bufsize:=0;
-  i:=0;
-  while (i<argc) do
-   begin
-     len:=strlen(argv[i]);
-     if len>sizeof(buf)-2 then
-      len:=sizeof(buf)-2;
-     found:=false;
-     for j:=1 to len do
-      if argv[i][j]=' ' then
-       begin
-         found:=true;
-         break;
-       end;
-     if bufsize+len>=sizeof(buf)-2 then
-      AddBuf;
-     if found then
-      begin
-        buf[bufsize]:='"';
-        inc(bufsize);
-      end;
-     move(argv[i]^,buf[bufsize],len);
-     inc(bufsize,len);
-     if found then
-      begin
-        buf[bufsize]:='"';
-        inc(bufsize);
-      end;
-     if i<argc then
-      buf[bufsize]:=' '
-     else
-      buf[bufsize]:=#0;
-     inc(bufsize);
-     inc(i);
-   end;
-  AddBuf;
-end;
-
-
-Begin
-  IsConsole := TRUE;
-  IsLibrary := FALSE;
-  StackBottom := Sptr - StackLength;
-{ Set up signals handlers }
-  InstallSignals;
-{ Setup heap }
-  InitHeap;
-  InitExceptions;
-{ Arguments }
-  SetupCmdLine;
-{ Setup stdin, stdout and stderr }
-  OpenStdIO(Input,fmInput,StdInputHandle);
-  OpenStdIO(Output,fmOutput,StdOutputHandle);
-  OpenStdIO(StdOut,fmOutput,StdOutputHandle);
-  OpenStdIO(StdErr,fmOutput,StdErrorHandle);
-{ Reset IO Error }
-  InOutRes:=0;
-End.
-
-{
+{
+    $Id$
+    This file is part of the Free Pascal run time library.
+    Copyright (c) 1999-2000 by Michael Van Canneyt,
+    member of the Free Pascal development team.
+
+    This is the core of the system unit *nix systems (now FreeBSD
+     and Unix).
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    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.
+
+ **********************************************************************}
+
+{ These things are set in the makefile, }
+{ But you can override them here.}
+
+{ If you use an aout system, set the conditional AOUT}
+{ $Define AOUT}
+
+{$I system.inc}
+
+{ used in syscall to report errors.}
+var
+  Errno : longint;
+
+{ Include constant and type definitions }
+{$i errno.inc    }  { Error numbers                 }
+{$i sysnr.inc    }  { System call numbers           }
+{$i sysconst.inc }  { Miscellaneous constants       }
+{$i systypes.inc }  { Types needed for system calls }
+
+{ Read actual system call definitions. }
+{$i signal.inc}
+{$i syscalls.inc }
+
+
+{*****************************************************************************
+                       Misc. System Dependent Functions
+*****************************************************************************}
+
+{$ifdef I386}
+{ this should be defined in i386 directory !! PM }
+const
+  fpucw : word = $1332;
+  FPU_Invalid = 1;
+  FPU_Denormal = 2;
+  FPU_DivisionByZero = 4;
+  FPU_Overflow = 8;
+  FPU_Underflow = $10;
+  FPU_StackUnderflow = $20;
+  FPU_StackOverflow = $40;
+
+{$endif I386}
+
+Procedure ResetFPU;
+begin
+{$ifdef I386}
+  asm
+    fninit
+    fldcw   fpucw
+  end;
+{$endif I386}
+end;
+
+
+procedure prthaltproc;external name '_haltproc';
+
+Procedure System_exit;
+Begin
+  prthaltproc;
+End;
+
+
+Function ParamCount: Longint;
+Begin
+  Paramcount:=argc-1;
+End;
+
+
+Function ParamStr(l: Longint): String;
+var
+  link,
+  hs : string;
+  i : longint;
+begin
+  if l=0 then
+   begin
+     str(sys_getpid,hs);
+     {$ifdef FreeBSD}
+      hs:='/proc/'+hs+'/file'#0;
+     {$else}
+      hs:='/proc/'+hs+'/exe'#0;
+     {$endif}
+     i:=Sys_readlink(@hs[1],@link[1],high(link));
+     { it must also be an absolute filename, linux 2.0 points to a memory
+       location so this will skip that }
+     if (i>0) and (link[1]='/') then
+      begin
+        link[0]:=chr(i);
+        paramstr:=link;
+      end
+     else
+      paramstr:=strpas(argv[0]);
+   end
+  else
+   if (l>0) and (l<argc) then
+    paramstr:=strpas(argv[l])
+  else
+    paramstr:='';
+end;
+
+
+Procedure Randomize;
+Begin
+  randseed:=sys_time;
+End;
+
+
+{*****************************************************************************
+                              Heap Management
+*****************************************************************************}
+
+var
+  _HEAP : pointer;external name 'HEAP';
+  _HEAPSIZE : longint;external name 'HEAPSIZE';
+
+function getheapstart:pointer;assembler;
+{$undef fpc_getheapstart_ok}
+{$ifdef i386}
+{$define fpc_getheapstart_ok}
+asm
+        leal    _HEAP,%eax
+end ['EAX'];
+{$endif i386}
+{$ifdef m68k}
+{$define fpc_getheapstart_ok}
+asm
+        lea.l   _HEAP,a0
+        move.l  a0,d0
+end['A0','D0'];
+{$endif m68k}
+{$ifdef powerpc}
+{$define fpc_getheapstart_ok}
+asm
+        lis r3,HEAP@ha
+        la r3,HEAP@l(r3)
+end['R3'];
+{$endif powerpc}
+{$ifndef fpc_getheapstart_ok}
+asm
+end;
+{$error Getheapstart code is not implemented }
+{$endif not fpc_getheapstart_ok}
+
+
+function getheapsize:longint;assembler;
+{$undef fpc_getheapsize_ok}
+{$ifdef i386}
+{$define fpc_getheapsize_ok}
+asm
+        movl    _HEAPSIZE,%eax
+end ['EAX'];
+{$endif i386}
+{$ifdef m68k}
+{$define fpc_getheapsize_ok}
+asm
+	move.l   _HEAPSIZE,d0
+end ['D0'];
+{$endif m68k}
+{$ifdef powerpc}
+{$define fpc_getheapsize_ok}
+asm
+        lis r9,HEAPSIZE@ha
+        lwz r3,HEAPSIZE@l(r9)
+end ['R0','R9'];
+{$endif powerpc}
+{$ifndef fpc_getheapsize_ok}
+asm
+end;
+{$error Getheapsize code is not implemented }
+{$endif not fpc_getheapsize_ok}
+
+
+Function sbrk(size : longint) : Longint;
+begin
+  sbrk:=Sys_mmap(0,Size,3,MAP_PRIVATE+MAP_ANONYMOUS,-1,0);
+  if sbrk<>-1 then
+   errno:=0;
+  {! It must be -1, not 0 as before, see heap.inc. Should be in sysmmap?}
+end;
+
+
+{ include standard heap management }
+{$I heap.inc}
+
+
+{*****************************************************************************
+                          Low Level File Routines
+*****************************************************************************}
+
+{
+  The lowlevel file functions should take care of setting the InOutRes to the
+  correct value if an error has occured, else leave it untouched
+}
+
+Procedure Errno2Inoutres;
+{
+  Convert ErrNo error to the correct Inoutres value
+}
+
+begin
+  if ErrNo=0 then { Else it will go through all the cases }
+   exit;
+  If errno<0 then Errno:=-errno;
+  case ErrNo of
+   Sys_ENFILE,
+   Sys_EMFILE : Inoutres:=4;
+   Sys_ENOENT : Inoutres:=2;
+    Sys_EBADF : Inoutres:=6;
+   Sys_ENOMEM,
+   Sys_EFAULT : Inoutres:=217;
+   Sys_EINVAL : Inoutres:=218;
+    Sys_EPIPE,
+    Sys_EINTR,
+      Sys_EIO,
+   Sys_EAGAIN,
+   Sys_ENOSPC : Inoutres:=101;
+ Sys_ENAMETOOLONG,
+    Sys_ELOOP,
+  Sys_ENOTDIR : Inoutres:=3;
+    Sys_EROFS,
+   Sys_EEXIST,
+   Sys_EISDIR,
+   Sys_ENOTEMPTY,
+   Sys_EACCES : Inoutres:=5;
+  Sys_ETXTBSY : Inoutres:=162;
+  else
+    InOutRes := Integer(Errno);
+  end;
+end;
+
+
+Procedure Do_Close(Handle:Longint);
+Begin
+  sys_close(Handle);
+  {Errno2Inoutres;}
+End;
+
+
+Procedure Do_Erase(p:pchar);
+{$ifdef BSD}
+ var FileInfo : Stat;
+{$endif}
+
+Begin
+  {$ifdef BSD} {or POSIX}
+  { verify if the filename is actually a directory }
+  { if so return error and do nothing, as defined  }
+  { by POSIX                                       }
+  if sys_stat(p,fileinfo)<0 then
+   begin
+     Errno2Inoutres;
+     exit;
+   end;
+  {$ifdef BSD}
+   if (fileinfo.mode and STAT_IFMT)=STAT_IFDIR then
+  {$else}
+   if s_ISDIR(fileinfo.st_mode) then
+  {$endif}
+   begin
+     InOutRes := 2;
+     exit;
+   end;
+  {$endif}
+  sys_unlink(p);
+  Errno2Inoutres;
+  {$ifdef Linux}
+  { tp compatible result }
+  if (Errno=Sys_EISDIR) then
+   InOutRes:=2;
+  {$endif}
+End;
+
+
+Procedure Do_Rename(p1,p2:pchar);
+Begin
+  sys_rename(p1,p2);
+  Errno2Inoutres;
+End;
+
+Function Do_Write(Handle,Addr,Len:Longint):longint;
+Begin
+  repeat
+    Do_Write:=sys_write(Handle,pchar(addr),len);
+  until ErrNo<>Sys_EINTR;
+  Errno2Inoutres;
+  if Do_Write<0 then
+   Do_Write:=0;
+End;
+
+
+Function Do_Read(Handle,Addr,Len:Longint):Longint;
+Begin
+  repeat
+    Do_Read:=sys_read(Handle,pchar(addr),len);
+  until ErrNo<>Sys_EINTR;
+  Errno2Inoutres;
+  if Do_Read<0 then
+   Do_Read:=0;
+End;
+
+
+Function Do_FilePos(Handle: Longint): Longint;
+Begin
+  Do_FilePos:=sys_lseek(Handle, 0, Seek_Cur);
+  Errno2Inoutres;
+End;
+
+
+Procedure Do_Seek(Handle,Pos:Longint);
+Begin
+  sys_lseek(Handle, pos, Seek_set);
+  errno2inoutres;
+End;
+
+
+Function Do_SeekEnd(Handle:Longint): Longint;
+begin
+  Do_SeekEnd:=sys_lseek(Handle,0,Seek_End);
+  errno2inoutres;
+end;
+
+Function Do_FileSize(Handle:Longint): Longint;
+var
+  Info : Stat;
+Begin
+  if sys_fstat(handle,info)=0 then
+   Do_FileSize:=Info.Size
+  else
+   Do_FileSize:=0;
+  Errno2Inoutres;
+End;
+
+
+Procedure Do_Truncate(Handle,fPos:longint);
+begin
+  sys_ftruncate(handle,fpos);
+  Errno2Inoutres;
+end;
+
+
+Procedure Do_Open(var f;p:pchar;flags:longint);
+{
+  FileRec and textrec have both Handle and mode as the first items so
+  they could use the same routine for opening/creating.
+  when (flags and $100)   the file will be append
+  when (flags and $1000)  the file will be truncate/rewritten
+  when (flags and $10000) there is no check for close (needed for textfiles)
+}
+var
+  oflags : longint;
+
+Begin
+{ close first if opened }
+  if ((flags and $10000)=0) then
+   begin
+     case FileRec(f).mode of
+      fminput,fmoutput,fminout : Do_Close(FileRec(f).Handle);
+      fmclosed : ;
+     else
+      begin
+        inoutres:=102; {not assigned}
+        exit;
+      end;
+     end;
+   end;
+{ reset file Handle }
+  FileRec(f).Handle:=UnusedHandle;
+{ We do the conversion of filemodes here, concentrated on 1 place }
+  case (flags and 3) of
+   0 : begin
+         oflags :=Open_RDONLY;
+         FileRec(f).mode:=fminput;
+       end;
+   1 : begin
+         oflags :=Open_WRONLY;
+         FileRec(f).mode:=fmoutput;
+       end;
+   2 : begin
+         oflags :=Open_RDWR;
+         FileRec(f).mode:=fminout;
+       end;
+  end;
+  if (flags and $1000)=$1000 then
+   oflags:=oflags or (Open_CREAT or Open_TRUNC)
+  else
+   if (flags and $100)=$100 then
+    oflags:=oflags or (Open_APPEND);
+{ empty name is special }
+  if p[0]=#0 then
+   begin
+     case FileRec(f).mode of
+       fminput :
+         FileRec(f).Handle:=StdInputHandle;
+       fminout, { this is set by rewrite }
+       fmoutput :
+         FileRec(f).Handle:=StdOutputHandle;
+       fmappend :
+         begin
+           FileRec(f).Handle:=StdOutputHandle;
+           FileRec(f).mode:=fmoutput; {fool fmappend}
+         end;
+     end;
+     exit;
+   end;
+{ real open call }
+  FileRec(f).Handle:=sys_open(p,oflags,438);
+  if (ErrNo=Sys_EROFS) and ((OFlags and Open_RDWR)<>0) then
+   begin
+     Oflags:=Oflags and not(Open_RDWR);
+     FileRec(f).Handle:=sys_open(p,oflags,438);
+   end;
+  Errno2Inoutres;
+End;
+
+
+Function Do_IsDevice(Handle:Longint):boolean;
+{
+  Interface to Unix ioctl call.
+  Performs various operations on the filedescriptor Handle.
+  Ndx describes the operation to perform.
+  Data points to data needed for the Ndx function. The structure of this
+  data is function-dependent.
+}
+var
+  Data : array[0..255] of byte; {Large enough for termios info}
+begin
+  Do_IsDevice:=(sys_ioctl(handle,IOCTL_TCGETS,@data)<>-1);
+end;
+
+
+{*****************************************************************************
+                           UnTyped File Handling
+*****************************************************************************}
+
+{$i file.inc}
+
+{*****************************************************************************
+                           Typed File Handling
+*****************************************************************************}
+
+{$i typefile.inc}
+
+{*****************************************************************************
+                           Text File Handling
+*****************************************************************************}
+
+{$DEFINE SHORT_LINEBREAK}
+{$DEFINE EXTENDED_EOF}
+
+{$i text.inc}
+
+{*****************************************************************************
+                           Directory Handling
+*****************************************************************************}
+
+Procedure MkDir(Const s: String);[IOCheck];
+Var
+  Buffer: Array[0..255] of Char;
+Begin
+  If (s='') or (InOutRes <> 0) then
+   exit;
+  Move(s[1], Buffer, Length(s));
+  Buffer[Length(s)] := #0;
+  sys_mkdir(@buffer, 511);
+  Errno2Inoutres;
+End;
+
+
+Procedure RmDir(Const s: String);[IOCheck];
+Var
+  Buffer: Array[0..255] of Char;
+Begin
+  if (s ='.') then
+    InOutRes := 16;
+  If (s='') or (InOutRes <> 0) then
+   exit;
+  Move(s[1], Buffer, Length(s));
+  Buffer[Length(s)] := #0;
+  sys_rmdir(@buffer);
+  {$ifdef BSD}
+    if (Errno=Sys_EINVAL) Then
+     InOutRes:=5
+    Else
+   {$endif}
+  Errno2Inoutres;
+End;
+
+
+Procedure ChDir(Const s: String);[IOCheck];
+Var
+  Buffer: Array[0..255] of Char;
+Begin
+  If (s='') or (InOutRes <> 0) then
+   exit;
+  Move(s[1], Buffer, Length(s));
+  Buffer[Length(s)] := #0;
+  sys_chdir(@buffer);
+  Errno2Inoutres;
+  { file not exists is path not found under tp7 }
+  if InOutRes=2 then
+   InOutRes:=3;
+End;
+
+
+procedure GetDir (DriveNr: byte; var Dir: ShortString);
+var
+  thisdir      : stat;
+  rootino,
+  thisino,
+  dotdotino    : longint;
+  rootdev,
+  thisdev,
+  dotdotdev    : dev_t;
+  thedir,dummy : string[255];
+  dirstream    : pdir;
+  d            : pdirent;
+  mountpoint,validdir : boolean;
+  predot       : string[255];
+begin
+  drivenr:=0;
+  dir:='';
+  thedir:='/'#0;
+  if sys_stat(@thedir[1],thisdir)<0 then
+   exit;
+  rootino:=thisdir.ino;
+  rootdev:=thisdir.dev;
+  thedir:='.'#0;
+  if sys_stat(@thedir[1],thisdir)<0 then
+   exit;
+  thisino:=thisdir.ino;
+  thisdev:=thisdir.dev;
+  { Now we can uniquely identify the current and root dir }
+  thedir:='';
+  predot:='';
+  while not ((thisino=rootino) and (thisdev=rootdev)) do
+   begin
+   { Are we on a mount point ? }
+     dummy:=predot+'..'#0;
+     if sys_stat(@dummy[1],thisdir)<0 then
+      exit;
+     dotdotino:=thisdir.ino;
+     dotdotdev:=thisdir.dev;
+     mountpoint:=(thisdev<>dotdotdev);
+   { Now, Try to find the name of this dir in the previous one }
+     dirstream:=opendir (@dummy[1]);
+     if dirstream=nil then
+      exit;
+     repeat
+       d:=sys_readdir (dirstream);
+       validdir:=false;
+       if (d<>nil) and
+          (not ((d^.name[0]='.') and ((d^.name[1]=#0) or ((d^.name[1]='.')
+                                 and (d^.name[2]=#0))))) and
+                                 (mountpoint or (d^.ino=thisino)) then
+        begin
+          dummy:=predot+'../'+strpas(@(d^.name[0]))+#0;
+          validdir:=not (sys_stat (@(dummy[1]),thisdir)<0);
+        end
+       else
+        validdir:=false;
+     until (d=nil) or
+           ((validdir) and (thisdir.dev=thisdev) and (thisdir.ino=thisino) );
+     { At this point, d.name contains the name of the current dir}
+     if (d<>nil) then
+      thedir:='/'+strpas(@(d^.name[0]))+thedir;
+     { closedir also makes d invalid }
+     if (closedir(dirstream)<0) or (d=nil) then
+      exit;
+     thisdev:=dotdotdev;
+     thisino:=dotdotino;
+     predot:=predot+'../';
+   end;
+{ Now rootino=thisino and rootdev=thisdev so we've reached / }
+  dir:=thedir
+end;
+
+{$ifdef Unix}
+{*****************************************************************************
+                             Thread Handling
+*****************************************************************************}
+
+{ include threading stuff, this is os independend part }
+{$I thread.inc}
+{$endif Unix}
+
+{*****************************************************************************
+                         SystemUnit Initialization
+*****************************************************************************}
+
+{$ifdef BSD}
+ procedure SignalToRunerror(Sig: longint; SigContext: SigContextRec;someptr:pointer); cdecl;
+{$else}
+ {$ifdef Solaris}
+  procedure SignalToRunerror(Sig: longint; SigContext: SigContextRec;someptr:pointer); cdecl;
+ {$else}
+  procedure SignalToRunerror(Sig: longint; SigContext: SigContextRec); cdecl;
+ {$endif}
+{$ENDIF}
+var
+
+  res,fpustate : word;
+begin
+  res:=0;
+  case sig of
+    SIGFPE :
+      begin
+    { this is not allways necessary but I don't know yet
+      how to tell if it is or not PM }
+{$ifdef I386}
+          fpustate:=0;
+          res:=200;
+  {$ifndef FreeBSD}
+           if assigned(SigContext.fpstate) then
+             fpuState:=SigContext.fpstate^.sw;
+  {$else}
+            fpustate:=SigContext.en_sw;
+    {$ifdef SYSTEM_DEBUG}
+           writeln('xx:',sigcontext.en_tw,' ',sigcontext.en_cw);
+    {$endif SYSTEM_DEBUG}
+  {$endif}
+  {$ifdef SYSTEM_DEBUG}
+          Writeln(stderr,'FpuState = ',FpuState);
+  {$endif SYSTEM_DEBUG}
+          if (FpuState and $7f) <> 0 then
+            begin
+              { first check te more precise options }
+              if (FpuState and FPU_DivisionByZero)<>0 then
+                res:=200
+              else if (FpuState and FPU_Overflow)<>0 then
+                res:=205
+              else if (FpuState and FPU_Underflow)<>0 then
+                res:=206
+              else if (FpuState and FPU_Denormal)<>0 then
+                res:=216
+              else if (FpuState and (FPU_StackOverflow or FPU_StackUnderflow))<>0 then
+                res:=207
+              else if (FpuState and FPU_Invalid)<>0 then
+                res:=216
+              else
+                res:=207;  {'Coprocessor Error'}
+            end;
+{$endif I386}
+          ResetFPU;
+        end;
+   SIGILL,
+   SIGBUS,
+   SIGSEGV :
+        res:=216;
+  end;
+{ give runtime error at the position where the signal was raised }
+  if res<>0 then
+   begin
+{$ifdef I386}
+     {$ifdef FreeBSD}
+      HandleErrorAddrFrame(res,SigContext.sc_eip,SigContext.sc_ebp);
+     {$else}
+      HandleErrorAddrFrame(res,SigContext.eip,SigContext.ebp);
+     {$endif}
+{$else}
+     HandleError(res);
+{$endif}
+   end;
+end;
+
+
+Procedure InstallSignals;
+const
+{$Ifndef BSD}
+ {$ifdef solaris}
+  act: SigActionRec =(sa_flags:SA_SIGINFO;Handler:(sa:@signaltorunerror;sa_mask:0);
+ {$else}
+  act: SigActionRec = (handler:(Sa:@SignalToRunError);sa_mask:0;sa_flags:0;
+                       Sa_restorer: NIL);
+ {$endif}
+{$ELSE}
+   act: SigActionRec = (handler:(Sa:@SignalToRunError);sa_flags:SA_SIGINFO;
+    sa_mask:0);
+{$endif}
+
+  oldact: PSigActionRec = Nil;          {Probably not necessary anymore, now
+                                         VAR is removed}
+begin
+  ResetFPU;
+  SigAction(SIGFPE,@act,oldact);
+{$ifndef Solaris}
+  SigAction(SIGSEGV,@act,oldact);
+  SigAction(SIGBUS,@act,oldact);
+  SigAction(SIGILL,@act,oldact);
+{$endif}
+end;
+
+
+procedure SetupCmdLine;
+var
+  bufsize,
+  len,j,
+  size,i : longint;
+  found  : boolean;
+  buf    : array[0..1026] of char;
+
+  procedure AddBuf;
+  begin
+    reallocmem(cmdline,size+bufsize);
+    move(buf,cmdline[size],bufsize);
+    inc(size,bufsize);
+    bufsize:=0;
+  end;
+
+begin
+  size:=0;
+  bufsize:=0;
+  i:=0;
+  while (i<argc) do
+   begin
+     len:=strlen(argv[i]);
+     if len>sizeof(buf)-2 then
+      len:=sizeof(buf)-2;
+     found:=false;
+     for j:=1 to len do
+      if argv[i][j]=' ' then
+       begin
+         found:=true;
+         break;
+       end;
+     if bufsize+len>=sizeof(buf)-2 then
+      AddBuf;
+     if found then
+      begin
+        buf[bufsize]:='"';
+        inc(bufsize);
+      end;
+     move(argv[i]^,buf[bufsize],len);
+     inc(bufsize,len);
+     if found then
+      begin
+        buf[bufsize]:='"';
+        inc(bufsize);
+      end;
+     if i<argc then
+      buf[bufsize]:=' '
+     else
+      buf[bufsize]:=#0;
+     inc(bufsize);
+     inc(i);
+   end;
+  AddBuf;
+end;
+
+
+Begin
+  IsConsole := TRUE;
+  IsLibrary := FALSE;
+  StackBottom := Sptr - StackLength;
+{ Set up signals handlers }
+  InstallSignals;
+{ Setup heap }
+  InitHeap;
+  InitExceptions;
+{ Arguments }
+  SetupCmdLine;
+{ Setup stdin, stdout and stderr }
+  OpenStdIO(Input,fmInput,StdInputHandle);
+  OpenStdIO(Output,fmOutput,StdOutputHandle);
+  OpenStdIO(StdOut,fmOutput,StdOutputHandle);
+  OpenStdIO(StdErr,fmOutput,StdErrorHandle);
+{ Reset IO Error }
+  InOutRes:=0;
+End.
+
+{
   $Log$
-  Revision 1.27  2002-08-31 21:29:57  florian
+  Revision 1.28  2002-09-02 19:46:37  florian
+    * fixed line breaks
+
+  Revision 1.27  2002/08/31 21:29:57  florian
     * several PC related fixes
-
-  Revision 1.26  2002/08/13 18:11:08  florian
-    * heap stuff for powerpc fixed
-
-  Revision 1.25  2002/08/03 20:05:13  florian
-    + ppc implementation of heap functions added
-
-  Revision 1.24  2002/07/29 21:28:17  florian
-    * several fixes to get further with linux/ppc system unit compilation
-
-  Revision 1.23  2002/07/28 20:43:49  florian
-    * several fixes for linux/powerpc
-    * several fixes to MT
-
-  Revision 1.22  2002/05/31 13:37:24  marco
-   * more Renamefest
-
-  Revision 1.21  2002/04/21 15:55:00  carl
-  + initialize some global variables
-
-  Revision 1.20  2002/04/12 17:43:28  carl
-  + generic stack checking
-
-  Revision 1.19  2002/03/11 19:10:33  peter
-    * Regenerated with updated fpcmake
-
-  Revision 1.18  2001/10/14 13:33:21  peter
-    * start of thread support for linux
-
-  Revision 1.17  2001/09/30 21:10:20  peter
-    * erase(directory) returns now 2 to be tp compatible
-
-  Revision 1.16  2001/08/05 12:24:20  peter
-    * m68k merges
-
-  Revision 1.15  2001/07/16 19:51:36  marco
-   * A small note, copied from the Solaris patch. Do_close needs errnotoiores?
-
-  Revision 1.14  2001/07/15 11:57:16  peter
-    * merged m68k updates
-
-  Revision 1.13  2001/07/13 22:05:09  peter
-    * cygwin updates
-
-  Revision 1.12  2001/06/02 19:24:49  peter
-    * chdir rte 2 mapped to 3
-
-  Revision 1.11  2001/06/02 00:31:31  peter
-    * merge unix updates from the 1.0 branch, mostly related to the
-      solaris target
-
-  Revision 1.10  2001/04/23 20:33:31  peter
-    * also install sig handlers for sigill,sigbus
-
-  Revision 1.9  2001/04/13 22:39:05  peter
-    * removed warning
-
-  Revision 1.8  2001/04/12 17:53:43  peter
-    * fixed usage of already release memory in getdir
-
-  Revision 1.7  2001/03/21 21:08:20  hajny
-    * GetDir fixed
-
-  Revision 1.6  2001/03/16 20:09:58  hajny
-    * universal FExpand
-
-  Revision 1.5  2001/02/20 21:31:12  peter
-    * chdir,mkdir,rmdir with empty string fixed
-
-  Revision 1.4  2000/12/17 14:00:57  peter
-    * removed debug writelns
-
-  Revision 1.3  2000/10/09 16:35:51  marco
-   * Fixed the first (of many) ioctls that make building the IDE hard.
-
-  Revision 1.2  2000/09/18 13:14:51  marco
-   * Global Linux +bsd to (rtl/freebsd rtl/unix rtl/linux structure)
-
-  Revision 1.6  2000/09/11 13:48:08  marco
-   * FreeBSD support and removal of old sighandler
-
-  Revision 1.5  2000/08/13 08:43:45  peter
-    * don't check for directory in do_open (merged)
-
-  Revision 1.4  2000/08/05 18:33:51  peter
-    * paramstr(0) fix for linux 2.0 kernels (merged)
-
-  Revision 1.3  2000/07/14 10:33:10  michael
-  + Conditionals fixed
-
-  Revision 1.2  2000/07/13 11:33:49  michael
-  + removed logs
-
-}
+
+  Revision 1.26  2002/08/13 18:11:08  florian
+    * heap stuff for powerpc fixed
+
+  Revision 1.25  2002/08/03 20:05:13  florian
+    + ppc implementation of heap functions added
+
+  Revision 1.24  2002/07/29 21:28:17  florian
+    * several fixes to get further with linux/ppc system unit compilation
+
+  Revision 1.23  2002/07/28 20:43:49  florian
+    * several fixes for linux/powerpc
+    * several fixes to MT
+
+  Revision 1.22  2002/05/31 13:37:24  marco
+   * more Renamefest
+
+  Revision 1.21  2002/04/21 15:55:00  carl
+  + initialize some global variables
+
+  Revision 1.20  2002/04/12 17:43:28  carl
+  + generic stack checking
+
+  Revision 1.19  2002/03/11 19:10:33  peter
+    * Regenerated with updated fpcmake
+
+  Revision 1.18  2001/10/14 13:33:21  peter
+    * start of thread support for linux
+
+  Revision 1.17  2001/09/30 21:10:20  peter
+    * erase(directory) returns now 2 to be tp compatible
+
+  Revision 1.16  2001/08/05 12:24:20  peter
+    * m68k merges
+
+  Revision 1.15  2001/07/16 19:51:36  marco
+   * A small note, copied from the Solaris patch. Do_close needs errnotoiores?
+
+  Revision 1.14  2001/07/15 11:57:16  peter
+    * merged m68k updates
+
+  Revision 1.13  2001/07/13 22:05:09  peter
+    * cygwin updates
+
+  Revision 1.12  2001/06/02 19:24:49  peter
+    * chdir rte 2 mapped to 3
+
+  Revision 1.11  2001/06/02 00:31:31  peter
+    * merge unix updates from the 1.0 branch, mostly related to the
+      solaris target
+
+  Revision 1.10  2001/04/23 20:33:31  peter
+    * also install sig handlers for sigill,sigbus
+
+  Revision 1.9  2001/04/13 22:39:05  peter
+    * removed warning
+
+  Revision 1.8  2001/04/12 17:53:43  peter
+    * fixed usage of already release memory in getdir
+
+  Revision 1.7  2001/03/21 21:08:20  hajny
+    * GetDir fixed
+
+  Revision 1.6  2001/03/16 20:09:58  hajny
+    * universal FExpand
+
+  Revision 1.5  2001/02/20 21:31:12  peter
+    * chdir,mkdir,rmdir with empty string fixed
+
+  Revision 1.4  2000/12/17 14:00:57  peter
+    * removed debug writelns
+
+  Revision 1.3  2000/10/09 16:35:51  marco
+   * Fixed the first (of many) ioctls that make building the IDE hard.
+
+  Revision 1.2  2000/09/18 13:14:51  marco
+   * Global Linux +bsd to (rtl/freebsd rtl/unix rtl/linux structure)
+
+  Revision 1.6  2000/09/11 13:48:08  marco
+   * FreeBSD support and removal of old sighandler
+
+  Revision 1.5  2000/08/13 08:43:45  peter
+    * don't check for directory in do_open (merged)
+
+  Revision 1.4  2000/08/05 18:33:51  peter
+    * paramstr(0) fix for linux 2.0 kernels (merged)
+
+  Revision 1.3  2000/07/14 10:33:10  michael
+  + Conditionals fixed
+
+  Revision 1.2  2000/07/13 11:33:49  michael
+  + removed logs
+
+}