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{
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by Michael Van Canneyt,
member of the Free Pascal development team.
Signal handler is arch dependant due to processor to language
exception conversion.
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.
**********************************************************************}
const
FPE_INTDIV = 1;
FPE_INTOVF = 2;
FPE_FLTDIV = 3;
FPE_FLTOVF = 4;
FPE_FLTUND = 5;
FPE_FLTRES = 6;
FPE_FLTINV = 7;
FPE_FLTSUB = 8;
procedure SignalToRunerror(sig : longint; SigInfo: PSigInfo; SigContext: PSigContext);public name '_FPC_DEFAULTSIGHANDLER';cdecl;
var
res : word;
addr : pointer;
frame : pointer;
begin
res:=0;
if assigned(sigcontext) then
begin
addr := pointer(sigcontext^.uc_mcontext.gregs[REG_PC]);
frame := pointer(sigcontext^.uc_mcontext.gregs[REG_FP])
end
else
begin
addr := nil;
frame := nil;
end;
case sig of
SIGFPE :
begin
case siginfo^.si_code of
FPE_INTDIV:
res:=200;
FPE_INTOVF:
res:=205;
FPE_FLTDIV:
res:=200;
FPE_FLTOVF:
res:=205;
FPE_FLTUND:
res:=206;
else
res:=207;
end;
with sigcontext^.uc_mcontext.fpregs.fpchip_state do
status:=status and not FPU_ExceptionMask;
end;
SIGILL:
if sse_check then
begin
os_supports_sse:=false;
res:=0;
inc(sigcontext^.uc_mcontext.gregs[REG_EIP],3);
end
else
res:=216;
SIGSEGV :
begin
res:=216;
end;
SIGBUS :
begin
res:=214;
end;
SIGINT:
res:=217;
SIGQUIT:
res:=233;
end;
reenable_signal(sig);
{ give runtime error at the position where the signal was raised }
{if res<>0 then
HandleErrorAddrFrame(res,addr,frame);}
{ give runtime error at the position where the signal was raised }
if res<>0 then
begin
sigcontext^.uc_mcontext.gregs[REG_EAX] := res;
sigcontext^.uc_mcontext.gregs[REG_EDX] := sigcontext^.uc_mcontext.gregs[REG_EIP];
sigcontext^.uc_mcontext.gregs[REG_ECX] := sigcontext^.uc_mcontext.gregs[REG_EBP];
sigcontext^.uc_mcontext.gregs[REG_EIP] := ptruint(@HandleErrorAddrFrame);
end;
end;
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