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+{
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+ $Id$
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+ This file is part of the Free Pascal run time library.
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+ (c) 2000-2003 by Marco van de Voort
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+ member of the Free Pascal development team.
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+
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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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+
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+ Signalhandler for FreeBSD/i386
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+
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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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+
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+CONST FPU_ALL=$7F;
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+
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+function getfpustate(const Sigcontext:sigcontextRec):longint; {inline;}
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+begin
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+ getfpustate:=0;
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+end;
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+procedure SignalToRunerror(Sig: longint;code:longint; var SigContext: SigContextRec); cdecl;
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+
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+var
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+ res,fpustate : word;
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+begin
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+ res:=0;
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+{$ifdef BSD}
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+{$ifdef I386}
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+ fpustate:=0;
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+ asm
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+ fnstsw fpustate
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+ end;
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+{$endif I386}
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+{$endif BSD}
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+ case sig of
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+ SIGFPE :
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+ begin
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+ { this is not allways necessary but I don't know yet
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+ how to tell if it is or not PM }
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+ res:=200;
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+ fpustate:=GetFPUState(SigContext);
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+
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+ if (FpuState and FPU_All) <> 0 then
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+ begin
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+ { first check the more precise options }
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+ if (FpuState and FPU_DivisionByZero)<>0 then
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+ res:=200
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+ else if (FpuState and FPU_Overflow)<>0 then
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+ res:=205
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+ else if (FpuState and FPU_Underflow)<>0 then
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+ res:=206
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+ else if (FpuState and FPU_Denormal)<>0 then
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+ res:=216
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+ else if (FpuState and (FPU_StackOverflow or FPU_StackUnderflow))<>0 then
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+ res:=207
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+ else if (FpuState and FPU_Invalid)<>0 then
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+ res:=216
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+ else
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+ res:=207; {'Coprocessor Error'}
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+ end;
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+ SysResetFPU;
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+ end;
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+ SIGILL,
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+ SIGBUS,
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+ SIGSEGV :
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+ res:=216;
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+ end;
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+ reenable_signal(sig);
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+{ give runtime error at the position where the signal was raised }
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+ if res<>0 then
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+ begin
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+{$ifdef I386}
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+ HandleErrorAddrFrame(res,pointer(SigContext.sc_eip),pointer(SigContext.sc_ebp));
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+{$endif}
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+ end;
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+end;
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+
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+
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+{
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+ $Log$
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+ Revision 1.1 2004-01-20 17:01:42 marco
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+ * working versions, untested
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+
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+ Revision 1.1 2004/01/04 15:30:19 marco
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+ * working version
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+
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+ Revision 1.1 2004/01/03 12:29:36 marco
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+ * now separately.
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+
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+}
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