mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-07 20:08:12 +02:00
94 lines
2.6 KiB
PHP
94 lines
2.6 KiB
PHP
{
|
|
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.
|
|
|
|
**********************************************************************}
|
|
|
|
|
|
procedure SignalToRunerror(sig : longint; SigContext: PSigContextRec; uContext: Pvregs);public name '_FPC_DEFAULTSIGHANDLER';cdecl;
|
|
var
|
|
res,fpustate : word;
|
|
begin
|
|
res:=0;
|
|
case sig of
|
|
SIGFPE :
|
|
begin
|
|
{ this is not allways necessary but I don't know yet
|
|
how to tell if it is or not PM }
|
|
res:=200;
|
|
// fp_status always here under BeOS and x86 CPU
|
|
// (fp_status is not behind a pointer in the BeOS context record)
|
|
FpuState:=ucontext^.xregs.state.old_format.fp_status;
|
|
|
|
if (FpuState and FPU_ExceptionMask) <> 0 then
|
|
begin
|
|
{ first check the more precise options }
|
|
if (FpuState and FPU_DivisionByZero)<>0 then
|
|
res:=208
|
|
else if (FpuState and (FPU_StackOverflow or FPU_StackUnderflow or FPU_Invalid))<>0 Then
|
|
res:=207
|
|
else if (FpuState and FPU_Overflow)<>0 then
|
|
res:=205
|
|
else if (FpuState and FPU_Underflow)<>0 then
|
|
res:=206
|
|
else if (FpuState and FPU_Denormal)<>0 then
|
|
res:=207
|
|
else
|
|
res:=207; {'Coprocessor Error'}
|
|
end;
|
|
with ucontext^.xregs.state.old_format do
|
|
begin
|
|
fp_status := fp_status and not FPU_ExceptionMask;
|
|
end;
|
|
SysResetFPU;
|
|
end;
|
|
(* SIGBUS: {Same as SIGSEGV under BeOS}
|
|
begin
|
|
res:=214;
|
|
end; *)
|
|
SIGILL:
|
|
begin
|
|
if sse_check then
|
|
begin
|
|
os_supports_sse := false;
|
|
res := 0;
|
|
inc(ucontext^.eip, 3);
|
|
end
|
|
else
|
|
res:=216;
|
|
end;
|
|
SIGSEGV :
|
|
begin
|
|
res:=216;
|
|
end;
|
|
SIGINT:
|
|
begin
|
|
res:=217
|
|
end;
|
|
SIGQUIT :
|
|
begin
|
|
res:=233;
|
|
end;
|
|
end;
|
|
reenable_signal(sig);
|
|
{ give runtime error at the position where the signal was raised }
|
|
if res<>0 then
|
|
begin
|
|
HandleErrorAddrFrame(res, pointer(ucontext^.eip),
|
|
pointer(ucontext^.ebp));
|
|
end;
|
|
end;
|
|
|
|
|