mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 10:31:44 +01:00
128 lines
3.0 KiB
ObjectPascal
128 lines
3.0 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 1998-2000 by Michael Van Canneyt
|
|
|
|
Unit to catch segmentation faults and Ctrl-C and exit gracefully
|
|
under linux and go32v2
|
|
|
|
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 catch;
|
|
|
|
{$ifdef go32v2}
|
|
{ go32v2 stack check goes nuts if ss is not the data selector (PM) }
|
|
{$S-}
|
|
{$endif}
|
|
|
|
{$ifdef DEBUG}
|
|
{$define NOCATCH}
|
|
{$endif DEBUG}
|
|
|
|
|
|
interface
|
|
uses
|
|
{$ifdef linux}
|
|
{$define has_signal}
|
|
linux,
|
|
{$endif}
|
|
{$ifdef go32v2}
|
|
{$define has_signal}
|
|
dpmiexcp,
|
|
{$endif}
|
|
verbose;
|
|
|
|
|
|
{$ifdef has_signal}
|
|
Var
|
|
NewSignal,OldSigSegm,
|
|
OldSigInt,OldSigFPE : SignalHandler;
|
|
{$endif}
|
|
|
|
Const in_const_evaluation : boolean = false;
|
|
|
|
Implementation
|
|
|
|
{$ifdef has_signal}
|
|
{$ifdef linux}
|
|
Procedure CatchSignal(Sig : Integer);cdecl;
|
|
{$else}
|
|
Function CatchSignal(Sig : longint):longint;
|
|
{$endif}
|
|
begin
|
|
case Sig of
|
|
SIGSEGV : begin
|
|
{ Temporary message - until we get an error number... }
|
|
writeln ('Panic : Internal compiler error, exiting.');
|
|
internalerror(9999);
|
|
end;
|
|
SIGFPE : begin
|
|
If in_const_evaluation then
|
|
Writeln('FPE error computing constant expression')
|
|
else
|
|
Writeln('FPE error inside compiler');
|
|
Stop;
|
|
end;
|
|
SIGINT : begin
|
|
WriteLn('Ctrl-C Signaled!');
|
|
Stop;
|
|
end;
|
|
end;
|
|
{$ifndef linux}
|
|
CatchSignal:=0;
|
|
{$endif}
|
|
end;
|
|
{$endif def has_signal}
|
|
|
|
|
|
begin
|
|
{$ifndef nocatch}
|
|
{$ifdef has_signal}
|
|
{$ifndef TP}
|
|
NewSignal:=SignalHandler(@CatchSignal);
|
|
{$else TP}
|
|
NewSignal:=SignalHandler(CatchSignal);
|
|
{$endif TP}
|
|
OldSigSegm:=Signal (SIGSEGV,NewSignal);
|
|
OldSigInt:=Signal (SIGINT,NewSignal);
|
|
OldSigFPE:=Signal (SIGFPE,NewSignal);
|
|
{$endif}
|
|
{$endif nocatch}
|
|
end.
|
|
|
|
{
|
|
$Log$
|
|
Revision 1.13 2000-03-20 09:37:51 florian
|
|
* catching of exceptions is switched off on all targets if the define
|
|
DEBUG is used
|
|
|
|
Revision 1.12 2000/02/18 12:34:43 pierre
|
|
DEBUG implies NOCATCH for go32v2
|
|
|
|
Revision 1.11 2000/02/09 13:22:45 peter
|
|
* log truncated
|
|
|
|
Revision 1.10 2000/01/07 01:14:20 peter
|
|
* updated copyright to 2000
|
|
|
|
Revision 1.9 1999/08/25 16:41:04 peter
|
|
* resources are working again
|
|
|
|
Revision 1.8 1999/08/10 12:27:15 pierre
|
|
* not stack check inside catch !!
|
|
|
|
}
|