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66 lines
2.1 KiB
PHP
66 lines
2.1 KiB
PHP
{
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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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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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Signalhandler for FreeBSD/i386
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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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procedure SignalToRunerror(Sig: cint; var info : tsiginfo_t;Var SigContext:SigContextRec); cdecl;
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var
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res : word;
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begin
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res:=0;
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case sig of
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SIGFPE :
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begin
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Case Info.si_code Of
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FPE_INTDIV : Res:=200; {integer divide fault. Div0?}
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FPE_FLTOVF : Res:=205; {Overflow trap}
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FPE_FLTUND : Res:=206; {Stack over/underflow}
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FPE_FLTRES : Res:=208; {Device not available}
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FPE_FLTINV : Res:=207; {Invalid floating point operation}
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Else
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Res:=208; {coprocessor error}
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end;
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{ the following is true on ppc, hopefully not on x86 as well }
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{ FPU exceptions are completely disabled by the kernel if one occurred, it }
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{ seems this is necessary to be able to return to user mode. They can be }
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{ enabled by executing a sigreturn, however then the exception is triggered }
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{ triggered again immediately if we don't turn off the "exception occurred" }
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{ flags in fpscr }
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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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{$ifdef FPC_USE_SIGPROCMASK}
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reenable_signal(sig);
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{$endif }
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if (res <> 0) then
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HandleErrorAddrFrame(res,pointer(sigcontext.ts.eip),pointer(sigcontext.ts.ebp));
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(*
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{ return to trampoline }
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if res <> 0 then
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begin
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SigContext.uc_mcontext^.ss.r3 := res;
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SigContext.uc_mcontext^.ss.r4 := SigContext.uc_mcontext^.ss.srr0;
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SigContext.uc_mcontext^.ss.r5 := SigContext.uc_mcontext^.ss.r1;
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pointer(SigContext.uc_mcontext^.ss.srr0) := @HandleErrorAddrFrame;
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end;
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*)
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end;
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