mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-11-04 08:19:36 +01:00
78 lines
2.4 KiB
PHP
78 lines
2.4 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; SigInfo: PSigInfo; UContext: Pucontext);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;
|
|
if assigned(ucontext^.uc_mcontext.fpstate) then
|
|
begin
|
|
FpuState:=ucontext^.uc_mcontext.fpstate^.sw;
|
|
if (FpuState and FPU_ExceptionMask) <> 0 then
|
|
begin
|
|
{ first check the more precise options }
|
|
if (FpuState and FPU_DivisionByZero)<>0 then
|
|
res:=200
|
|
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:=216
|
|
else
|
|
res:=207; {'Coprocessor Error'}
|
|
end;
|
|
with ucontext^.uc_mcontext.fpstate^ do
|
|
sw:=sw and not FPU_ExceptionMask;
|
|
end;
|
|
end;
|
|
SIGBUS:
|
|
res:=214;
|
|
SIGILL:
|
|
if sse_check then
|
|
begin
|
|
os_supports_sse:=false;
|
|
res:=0;
|
|
inc(ucontext^.uc_mcontext.eip,3);
|
|
end
|
|
else
|
|
res:=216;
|
|
SIGSEGV :
|
|
res:=216;
|
|
end;
|
|
reenable_signal(sig);
|
|
{ give runtime error at the position where the signal was raised }
|
|
if res<>0 then
|
|
begin
|
|
ucontext^.uc_mcontext.eax := res;
|
|
ucontext^.uc_mcontext.edx := ucontext^.uc_mcontext.eip;
|
|
ucontext^.uc_mcontext.ecx := ucontext^.uc_mcontext.ebp;
|
|
ucontext^.uc_mcontext.eip := ptruint(@HandleErrorAddrFrame);
|
|
end;
|
|
end;
|
|
|