1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1998, 1999, 2001, 2003 Ralf Baechle
7 * Copyright (C) 2000, 2001 Silicon Graphics, Inc.
8 */
9 #ifndef _ASM_SIGINFO_H
10 #define _ASM_SIGINFO_H
11
12
13 #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(long) + 2*sizeof(int))
14 #undef __ARCH_SI_TRAPNO /* exception code needs to fill this ... */
15
16 #define HAVE_ARCH_SIGINFO_T
17
18 /*
19 * We duplicate the generic versions - <asm-generic/siginfo.h> is just borked
20 * by design ...
21 */
22 #define HAVE_ARCH_COPY_SIGINFO
23 struct siginfo;
24
25 /*
26 * Careful to keep union _sifields from shifting ...
27 */
28 #ifdef CONFIG_32BIT
29 #define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
30 #endif
31 #ifdef CONFIG_64BIT
32 #define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
33 #endif
34
35 #include <asm-generic/siginfo.h>
36
37 typedef struct siginfo {
38 int si_signo;
39 int si_code;
40 int si_errno;
41 int __pad0[SI_MAX_SIZE / sizeof(int) - SI_PAD_SIZE - 3];
42
43 union {
44 int _pad[SI_PAD_SIZE];
45
46 /* kill() */
47 struct {
48 pid_t _pid; /* sender's pid */
49 __ARCH_SI_UID_T _uid; /* sender's uid */
50 } _kill;
51
52 /* POSIX.1b timers */
53 struct {
54 timer_t _tid; /* timer id */
55 int _overrun; /* overrun count */
56 char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
57 sigval_t _sigval; /* same as below */
58 int _sys_private; /* not to be passed to user */
59 } _timer;
60
61 /* POSIX.1b signals */
62 struct {
63 pid_t _pid; /* sender's pid */
64 __ARCH_SI_UID_T _uid; /* sender's uid */
65 sigval_t _sigval;
66 } _rt;
67
68 /* SIGCHLD */
69 struct {
70 pid_t _pid; /* which child */
71 __ARCH_SI_UID_T _uid; /* sender's uid */
72 int _status; /* exit code */
73 clock_t _utime;
74 clock_t _stime;
75 } _sigchld;
76
77 /* IRIX SIGCHLD */
78 struct {
79 pid_t _pid; /* which child */
80 clock_t _utime;
81 int _status; /* exit code */
82 clock_t _stime;
83 } _irix_sigchld;
84
85 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
86 struct {
87 void __user *_addr; /* faulting insn/memory ref. */
88 #ifdef __ARCH_SI_TRAPNO
89 int _trapno; /* TRAP # which caused the signal */
90 #endif
91 } _sigfault;
92
93 /* SIGPOLL, SIGXFSZ (To do ...) */
94 struct {
95 __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
96 int _fd;
97 } _sigpoll;
98 } _sifields;
99 } siginfo_t;
100
101 /*
102 * si_code values
103 * Again these have been choosen to be IRIX compatible.
104 */
105 #undef SI_ASYNCIO
106 #undef SI_TIMER
107 #undef SI_MESGQ
108 #define SI_ASYNCIO -2 /* sent by AIO completion */
109 #define SI_TIMER __SI_CODE(__SI_TIMER, -3) /* sent by timer expiration */
110 #define SI_MESGQ __SI_CODE(__SI_MESGQ, -4) /* sent by real time mesq state change */
111
112 #ifdef __KERNEL__
113
114 /*
115 * Duplicated here because of <asm-generic/siginfo.h> braindamage ...
116 */
117 #include <linux/string.h>
118
copy_siginfo(struct siginfo * to,struct siginfo * from)119 static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
120 {
121 if (from->si_code < 0)
122 memcpy(to, from, sizeof(*to));
123 else
124 /* _sigchld is currently the largest know union member */
125 memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
126 }
127
128 #endif
129
130 #endif /* _ASM_SIGINFO_H */
131