{
$Id: signal.inc,v 1.15 2004/01/01 16:28:16 jonas Exp $
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by Jonas Maebe,
member of the Free Pascal development team.
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.
**********************************************************************}
{$packrecords C}
{********************
Signal
********************}
Const
{ For sending a signal }
SA_NOCLDSTOP = 1;
SA_SHIRQ = $04000000;
SA_STACK = $08000000;
SA_RESTART = $10000000;
SA_INTERRUPT = $20000000;
SA_NOMASK = $40000000;
SA_ONESHOT = $80000000;
SIG_BLOCK = 0;
SIG_UNBLOCK = 1;
SIG_SETMASK = 2;
SIG_DFL = 0 ;
SIG_IGN = 1 ;
SIG_ERR = -1 ;
SIGHUP = 1;
SIGINT = 2;
SIGQUIT = 3;
SIGILL = 4;
SIGTRAP = 5;
SIGABRT = 6;
SIGIOT = 6;
SIGBUS = 7;
SIGFPE = 8;
SIGKILL = 9;
SIGUSR1 = 10;
SIGSEGV = 11;
SIGUSR2 = 12;
SIGPIPE = 13;
SIGALRM = 14;
SIGTerm = 15;
SIGSTKFLT = 16;
SIGCHLD = 17;
SIGCONT = 18;
SIGSTOP = 19;
SIGTSTP = 20;
SIGTTIN = 21;
SIGTTOU = 22;
SIGURG = 23;
SIGXCPU = 24;
SIGXFSZ = 25;
SIGVTALRM = 26;
SIGPROF = 27;
SIGWINCH = 28;
SIGIO = 29;
SIGPOLL = SIGIO;
SIGPWR = 30;
SIGUNUSED = 31;
const
SI_PAD_SIZE = ((128 div sizeof(longint)) - 3);
type
tfpreg = record
significand: array[0..3] of word;
exponent: word;
end;
pfpstate = ^tfpstate;
tfpstate = record
cw, sw, tag, ipoff, cssel, dataoff, datasel: cardinal;
st: array[0..7] of tfpreg;
status: cardinal;
end;
SigSet = array[0..wordsinsigset-1] of Longint;
sigset_t= SigSet;
PSigSet = ^SigSet;
psigset_t=psigset;
TSigSet = SigSet;
{$ifdef cpui386}
PSigContextRec = ^SigContextRec;
SigContextRec = record
gs, __gsh: word;
fs, __fsh: word;
es, __esh: word;
ds, __dsh: word;
edi: cardinal;
esi: cardinal;
ebp: cardinal;
esp: cardinal;
ebx: cardinal;
edx: cardinal;
ecx: cardinal;
eax: cardinal;
trapno: cardinal;
err: cardinal;
eip: cardinal;
cs, __csh: word;
eflags: cardinal;
esp_at_signal: cardinal;
ss, __ssh: word;
fpstate: pfpstate;
oldmask: cardinal;
cr2: cardinal;
end;
{$endif cpui386}
{$Ifdef cpum68k}
PSigContextRec = ^SigContextRec;
SigContextRec = record
{ dummy for now PM }
end;
{$endif cpum68k}
{$ifdef cpupowerpc}
{ from include/ppc/ptrace.h }
pptregs = ^tptregs;
tptregs = record
gpr: array[0..31] of cardinal;
nip: cardinal;
msr: cardinal;
orig_gpr3: cardinal; { Used for restarting system calls }
ctr: cardinal;
link: cardinal;
xer: cardinal;
ccr: cardinal;
mq: cardinal; { 601 only (not used at present) }
{ Used on APUS to hold IPL value. }
trap: cardinal; { Reason for being here }
dar: cardinal; { Fault registers }
dsisr: cardinal;
result: cardinal; { Result of a system call }
end;
{ from include/asm/ppc/siginfo.h }
psiginfo = ^tsiginfo;
tsiginfo = record
si_signo : longint;
si_errno : longint;
si_code : longint;
_sifields : record
case longint of
0 : ( _pad : array[0..(SI_PAD_SIZE)-1] of longint );
1 : ( _kill : record
_pid : pid_t;
_uid : uid_t;
end );
2 : ( _timer : record
_timer1 : dword;
_timer2 : dword;
end );
3 : ( _rt : record
_pid : pid_t;
_uid : uid_t;
_sigval : pointer;
end );
4 : ( _sigchld : record
_pid : pid_t;
_uid : uid_t;
_status : longint;
_utime : clock_t;
_stime : clock_t;
end );
5 : ( _sigfault : record
_addr : pointer;
end );
6 : ( _sigpoll : record
_band : longint;
_fd : longint;
end );
end;
end;
{ from include/asm-ppc/signal.h }
stack_t = record
ss_sp: pointer;
ss_flags: longint;
ss_size: size_t;
end;
{ from include/asm-ppc/sigcontext.h }
tsigcontext_struct = record
_unused: array[0..3] of dword;
signal: longint;
handler: dword;
oldmask: dword;
pt_regs: pptregs;
end;
{ from include/asm-ppc/ucontext.h }
pucontext = ^tucontext;
tucontext = record
uc_flags : dword;
uc_link : pucontext;
uc_stack : stack_t;
uc_mcontext : tsigcontext_struct;
uc_sigmask : sigset_t;
end;
{ from arch/ppc/kernel/signal.c, the type of the actual parameter passed }
{ to the sigaction handler }
t_rt_sigframe = record
_unused: array[0..1] of cardinal;
pinfo: psiginfo;
puc: pointer;
siginfo: tsiginfo;
uc: tucontext;
end;
PSigContextRec = ^SigContextRec;
SigContextRec = tsigcontext_struct;
{$endif cpupowerpc}
{$ifdef cpusparc}
PSigContextRec = ^SigContextRec;
SigContextRec = record
{ dummy for now PM }
end;
{$endif cpusparc}
{$ifdef cpuarm}
PSigContextRec = ^SigContextRec;
SigContextRec = record
trap_no : dword;
error_code : dword;
oldmask : dword;
arm_r0 : dword;
arm_r1 : dword;
arm_r2 : dword;
arm_r3 : dword;
arm_r4 : dword;
arm_r5 : dword;
arm_r6 : dword;
arm_r7 : dword;
arm_r8 : dword;
arm_r9 : dword;
arm_r10 : dword;
arm_fp : dword;
arm_ip : dword;
arm_sp : dword;
arm_lr : dword;
arm_pc : dword;
arm_cpsr : dword;
fault_address : dword;
end;
{$endif cpuarm}
(*
PSigInfoRec = ^SigInfoRec;
SigInfoRec = record
si_signo: longint;
si_errno: longint;
si_code: longint;
case longint of
0:
(pad: array[SI_PAD_SIZE] of longint);
1: { kill }
( kill: record
pid: longint; { sender's pid }
uid : longint; { sender's uid }
end );
2: { POSIX.1b timers }
( timer : record
timer1 : cardinal;
timer2 : cardinal;
end );
3: { POSIX.1b signals }
( rt : record
pid : longint; { sender's pid }
uid : longint; { sender's uid }
sigval : longint;
end );
4: { SIGCHLD }
( sigchld : record
pid : longint; { which child }
uid : longint; { sender's uid }
status : longint; { exit code }
utime : timeval;
stime : timeval;
end );
5: { SIGILL, SIGFPE, SIGSEGV, SIGBUS }
( sigfault : record
addr : pointer;{ faulting insn/memory ref. }
end );
6:
( sigpoll : record
band : longint; { POLL_IN, POLL_OUT, POLL_MSG }
fd : longint;
end );
end;
*)
SignalHandler = Procedure(Sig : Longint);cdecl;
PSignalHandler = ^SignalHandler;
SignalRestorer = Procedure;cdecl;
PSignalRestorer = ^SignalRestorer;
TSigAction = procedure(Sig: Longint; SigContext: SigContextRec);cdecl;
SigActionRec = packed record // this is temporary for the migration
{$ifdef posixworkaround}
sa_handler : signalhandler;
{$else}
Handler : record
case byte of
0: (Sh: SignalHandler);
1: (Sa: TSigAction);
end;
{$endif}
Sa_Mask : SigSet;
Sa_Flags : Longint;
Sa_restorer : SignalRestorer; { Obsolete - Don't use }
end;
TSigActionRec = SigActionRec;
PSigActionRec = ^SigActionRec;
{
$Log: signal.inc,v $
Revision 1.15 2004/01/01 16:28:16 jonas
* fixed signal handling
Revision 1.14 2003/11/21 00:40:06 florian
* some arm issues fixed
Revision 1.13 2003/11/02 14:53:06 jonas
+ sighand and associated record definitions for ppc. Untested.
Revision 1.12 2003/09/14 20:15:01 marco
* Unix reform stage two. Remove all calls from Unix that exist in Baseunix.
Revision 1.11 2003/09/03 14:09:37 florian
* arm fixes to the common rtl code
* some generic math code fixed
* ...
Revision 1.10 2003/08/21 22:24:52 olle
- removed parameter from fpc_iocheck
Revision 1.9 2002/12/24 21:30:20 mazen
- some writeln(s) removed in compiler
+ many files added to RTL
* some errors fixed in RTL
Revision 1.8 2002/12/18 16:43:26 marco
* new unix rtl, linux part.....
Revision 1.7 2002/11/12 14:51:44 marco
* signal.
Revision 1.6 2002/09/07 16:01:19 peter
* old logs removed and tabs fixed
Revision 1.5 2002/07/28 20:43:48 florian
* several fixes for linux/powerpc
* several fixes to MT
}
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