1 /* $Id: siginfo.h,v 1.5 1999/08/18 23:37:49 ralf Exp $
3 * This file is subject to the terms and conditions of the GNU General Public
4 * License. See the file "COPYING" in the main directory of this archive
7 * Copyright (C) 1998, 1999 by Ralf Baechle
10 #define _ASM_SIGINFO_H
12 #include <linux/types.h>
14 /* This structure matches IRIX 32/n32 ABIs for binary compatibility. */
16 typedef union sigval
{
21 /* This structure matches IRIX 32/n32 ABIs for binary compatibility but
22 has Linux extensions. */
24 #define SI_MAX_SIZE 128
25 #define SI_PAD_SIZE ((SI_MAX_SIZE/sizeof(int)) - 3)
27 typedef struct siginfo
{
33 int _pad
[SI_PAD_SIZE
];
37 pid_t _pid
; /* sender's pid */
38 uid_t _uid
; /* sender's uid */
43 pid_t _pid
; /* which child */
44 uid_t _uid
; /* sender's uid */
46 int _status
; /* exit code */
52 pid_t _pid
; /* which child */
54 int _status
; /* exit code */
58 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
60 void *_addr
; /* faulting insn/memory ref. */
63 /* SIGPOLL, SIGXFSZ (To do ...) */
65 int _band
; /* POLL_IN, POLL_OUT, POLL_MSG */
75 /* POSIX.1b signals */
77 pid_t _pid
; /* sender's pid */
78 uid_t _uid
; /* sender's uid */
86 * How these fields are to be accessed.
88 #define si_pid _sifields._kill._pid
89 #define si_uid _sifields._kill._uid
90 #define si_status _sifields._sigchld._status
91 #define si_utime _sifields._sigchld._utime
92 #define si_stime _sifields._sigchld._stime
93 #define si_value _sifields._rt._sigval
94 #define si_int _sifields._rt._sigval.sival_int
95 #define si_ptr _sifields._rt._sigval.sival_ptr
96 #define si_addr _sifields._sigfault._addr
97 #define si_band _sifields._sigpoll._band
98 #define si_fd _sifields._sigpoll._fd
101 #define __SI_MASK 0xffff0000
102 #define __SI_KILL (0 << 16)
103 #define __SI_TIMER (1 << 16)
104 #define __SI_POLL (2 << 16)
105 #define __SI_FAULT (3 << 16)
106 #define __SI_CHLD (4 << 16)
107 #define __SI_RT (5 << 16)
108 #define __SI_CODE(T,N) ((T) << 16 | ((N) & 0xffff))
116 #define __SI_CODE(T,N) (N)
121 * Again these have been choosen to be IRIX compatible.
123 #define SI_USER 0 /* sent by kill, sigsend, raise */
124 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
125 #define SI_QUEUE -1 /* sent by sigqueue */
126 #define SI_ASYNCIO -2 /* sent by AIO completion */
127 #define SI_TIMER __SI_CODE(__SI_TIMER,-3) /* sent by timer expiration */
128 #define SI_MESGQ -4 /* sent by real time mesq state change */
129 #define SI_SIGIO -5 /* sent by queued SIGIO */
131 #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
132 #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
137 #define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */
138 #define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */
139 #define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */
140 #define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */
141 #define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */
142 #define ILL_PRVREG (__SI_FAULT|6) /* privileged register */
143 #define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */
144 #define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */
150 #define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */
151 #define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */
152 #define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */
153 #define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */
154 #define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */
155 #define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */
156 #define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */
157 #define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */
163 #define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */
164 #define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */
170 #define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */
171 #define BUS_ADRERR (__SI_FAULT|2) /* non-existant physical address */
172 #define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */
178 #define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */
179 #define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */
185 #define CLD_EXITED (__SI_CHLD|1) /* child has exited */
186 #define CLD_KILLED (__SI_CHLD|2) /* child was killed */
187 #define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */
188 #define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */
189 #define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */
190 #define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */
196 #define POLL_IN (__SI_POLL|1) /* data input available */
197 #define POLL_OUT (__SI_POLL|2) /* output buffers available */
198 #define POLL_MSG (__SI_POLL|3) /* input message available */
199 #define POLL_ERR (__SI_POLL|4) /* i/o error */
200 #define POLL_PRI (__SI_POLL|5) /* high priority input available */
201 #define POLL_HUP (__SI_POLL|6) /* device disconnected */
205 * sigevent definitions
207 * It seems likely that SIGEV_THREAD will have to be handled from
208 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
209 * thread manager then catches and does the appropriate nonsense.
210 * However, everything is written out here so as to not get lost.
212 #define SIGEV_NONE 128 /* other notification: meaningless */
213 #define SIGEV_SIGNAL 129 /* notify via signal */
214 #define SIGEV_CALLBACK 130 /* ??? */
215 #define SIGEV_THREAD 131 /* deliver via thread creation */
217 #define SIGEV_MAX_SIZE 64
218 #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
220 /* XXX This one isn't yet IRIX / ABI compatible. */
221 typedef struct sigevent
{
223 sigval_t sigev_value
;
226 int _pad
[SIGEV_PAD_SIZE
];
229 void (*_function
)(sigval_t
);
230 void *_attribute
; /* really pthread_attr_t */
235 #define sigev_notify_function _sigev_un._sigev_thread._function
236 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
239 #include <linux/string.h>
241 extern inline void copy_siginfo(siginfo_t
*to
, siginfo_t
*from
)
243 if (from
->si_code
< 0)
244 memcpy(to
, from
, sizeof(siginfo_t
));
246 /* _sigchld is currently the largest know union member */
247 memcpy(to
, from
, 3*sizeof(int) + sizeof(from
->_sifields
._sigchld
));
250 extern int copy_siginfo_to_user(siginfo_t
*to
, siginfo_t
*from
);
252 #endif /* __KERNEL__ */
254 #endif /* _ASM_SIGINFO_H */