mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-06-03 08:58:32 +02:00
61 lines
2.0 KiB
PHP
61 lines
2.0 KiB
PHP
{
|
|
This file is part of the Free Pascal run time library.
|
|
(c) 2000-2003 by Marco van de Voort
|
|
member of the Free Pascal development team.
|
|
|
|
See the file COPYING.FPC, included in this distribution,
|
|
for details about the copyright.
|
|
|
|
Signalhandler for FreeBSD/i386
|
|
|
|
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: cint; var info : tsiginfo_t;Var SigContext:SigContextRec); cdecl;
|
|
|
|
var
|
|
res : word;
|
|
|
|
begin
|
|
res:=0;
|
|
case sig of
|
|
SIGFPE :
|
|
begin
|
|
Case Info.si_code Of
|
|
FPE_INTDIV : Res:=200; {integer divide fault. Div0?}
|
|
FPE_FLTOVF : Res:=205; {Overflow trap}
|
|
FPE_FLTUND : Res:=206; {Stack over/underflow}
|
|
FPE_FLTRES : Res:=208; {Device not available}
|
|
FPE_FLTINV : Res:=207; {Invalid floating point operation}
|
|
Else
|
|
Res:=208; {coprocessor error}
|
|
end;
|
|
{ FPU exceptions are completely disabled by the kernel if one occurred, it }
|
|
{ seems this is necessary to be able to return to user mode. They can be }
|
|
{ enabled by executing a sigreturn, however then the exception is triggered }
|
|
{ triggered again immediately if we don't turn off the "exception occurred" }
|
|
{ flags in fpscr }
|
|
SigContext.uc_mcontext^.fs.fpscr := SigContext.uc_mcontext^.fs.fpscr and not($fffe0700);
|
|
end;
|
|
SIGILL,
|
|
SIGBUS,
|
|
SIGSEGV :
|
|
res:=216;
|
|
end;
|
|
{$ifdef FPC_USE_SIGPROCMASK}
|
|
reenable_signal(sig);
|
|
{$endif }
|
|
|
|
{ return to trampoline }
|
|
if res <> 0 then
|
|
begin
|
|
SigContext.uc_mcontext^.ss.r3 := res;
|
|
SigContext.uc_mcontext^.ss.r4 := SigContext.uc_mcontext^.ss.srr0;
|
|
SigContext.uc_mcontext^.ss.r5 := SigContext.uc_mcontext^.ss.r1;
|
|
pointer(SigContext.uc_mcontext^.ss.srr0) := @HandleErrorAddrFrame;
|
|
end;
|
|
end;
|
|
|