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89 lines
1.9 KiB
ObjectPascal
89 lines
1.9 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by Michael Van Canneyt and Peter Vreman,
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members of the Free Pascal development team
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This file links to libc, and handles the libc errno abstraction.
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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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.
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**********************************************************************}
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unit initc;
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interface
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uses
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ctypes;
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{$linklib c}
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function fpgetCerrno:cint;
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procedure fpsetCerrno(err:cint);
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property cerrno:cint read fpgetCerrno write fpsetcerrno;
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const clib = 'c';
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implementation
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// hasn't been divided up in .inc's, because I first want to see hoe
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// this idea works out.
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{$ifdef OpenBSD}
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{$define UseOldErrnoDirectLink}
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{$endif}
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{$ifdef UseOldErrnoDirectLink}
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Var
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interrno : cint;external name {$ifdef OpenBSD} '_errno' {$else} 'h_errno'{$endif};
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function fpgetCerrno:cint;
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begin
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fpgetCerrno:=interrno;
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end;
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procedure fpsetCerrno(err:cint);
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begin
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interrno:=err;
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end;
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{$else}
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{$ifdef Linux}
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function geterrnolocation: pcint; cdecl;external clib name '__errno_location';
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{$endif}
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{$ifdef FreeBSD} // tested on x86
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function geterrnolocation: pcint; cdecl;external clib name '__error';
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{$endif}
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{$ifdef NetBSD} // from a sparc dump.
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function geterrnolocation: pcint; cdecl;external clib name '__errno';
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{$endif}
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{$ifdef Darwin}
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function geterrnolocation: pcint; cdecl;external clib name '__error';
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{$endif}
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{$ifdef SunOS}
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function geterrnolocation: pcint; cdecl;external clib name '___errno';
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{$endif}
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function fpgetCerrno:cint;
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begin
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fpgetCerrno:=geterrnolocation^;
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end;
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procedure fpsetCerrno(err:cint);
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begin
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geterrnolocation^:=err;
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end;
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{$endif}
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end.
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