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{
This file is part of the Free Pascal run time library.
Copyright (c) 2001 by Free Pascal development team
This file implements all the base types and limits required
for a minimal POSIX compliant subset required to port the compiler
to a new OS.
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.
**********************************************************************}
{$include xbios.inc}
{$include gemdos.inc}
procedure Error2InOutRes(errno: longint);
begin
if (errno <= -2) and (errno >= -11) then
InOutRes:=150-errno
else
begin
case errno of
-32 : InOutRes:=1;
-33 : InOutRes:=2;
-34 : InOutRes:=3;
-35 : InOutRes:=4;
-36 : InOutRes:=5;
-37 : InOutRes:=8;
-39 : InOutRes:=8;
-40 : InOutRes:=9;
-46 : InOutRes:=15;
-67..-64 : InOutRes:=153;
-15 : InOutRes:=151;
-13 : InOutRes:=150;
else
InOutRes := word(errno);
end;
end;
end;
var
stackpointer_on_entry: pointer; external name '__stktop';
function StackTop: Pointer;
begin
StackTop:=stackpointer_on_entry;
end;
var
basepage: PPD; external name '__base';
function SysBackTraceStr (Addr: CodePointer): ShortString;
begin
if (addr<basepage^.p_tbase) or (addr>pointer(basepage^.p_tbase+basepage^.p_tlen)) then
SysBackTraceStr:=' Addr $'+hexstr(addr)
else
SysBackTraceStr:=' Offs $'+hexstr(pointer(addr-basepage^.p_tbase));
end;
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