include/asm-mips/siginfo.h

   1 /* $Id: siginfo.h,v 1.4 1998/08/28 16:23:06 ralf Exp $
   2  *
   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
   5  * for more details.
   6  *
   7  * Copyright (C) 1998 by Ralf Baechle
   8  */
   9 #ifndef __ASM_MIPS_SIGINFO_H
  10 #define __ASM_MIPS_SIGINFO_H
  11
  12 #include <linux/types.h>
  13
  14 /* This structure matches OSF/1 for binary compatibility. */
  15
  16 typedef union sigval {
  17         int sival_int;
  18         void *sival_ptr;
  19 } sigval_t;
  20
  21 #define SI_MAX_SIZE     128
  22 #define SI_PAD_SIZE     ((SI_MAX_SIZE/sizeof(int)) - 4)
  23
  24 typedef struct siginfo {
  25         int si_signo;
  26         int si_errno;
  27         int si_code;
  28
  29         union {
  30                 int _pad[SI_PAD_SIZE];
  31
  32                 /* kill() */
  33                 struct {
  34                         pid_t _pid;             /* sender's pid */
  35                         uid_t _uid;             /* sender's uid */
  36                 } _kill;
  37
  38                 /* POSIX.1b timers */
  39                 struct {
  40                         unsigned int _timer1;
  41                         unsigned int _timer2;
  42                 } _timer;
  43
  44                 /* POSIX.1b signals */
  45                 struct {
  46                         pid_t _pid;             /* sender's pid */
  47                         uid_t _uid;             /* sender's uid */
  48                         sigval_t _sigval;
  49                 } _rt;
  50
  51                 /* SIGCHLD */
  52                 struct {
  53                         pid_t _pid;             /* which child */
  54                         uid_t _uid;             /* sender's uid */
  55                         int _status;            /* exit code */
  56                         clock_t _utime;
  57                         clock_t _stime;
  58                 } _sigchld;
  59
  60                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
  61                 struct {
  62                         void *_addr; /* faulting insn/memory ref. */
  63                 } _sigfault;
  64
  65                 /* SIGPOLL */
  66                 struct {
  67                         int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
  68                         int _fd;
  69                 } _sigpoll;
  70         } _sifields;
  71 } siginfo_t;
  72
  73 /*
  74  * How these fields are to be accessed.
  75  */
  76 #define si_pid          _sifields._kill._pid
  77 #define si_uid          _sifields._kill._uid
  78 #define si_status       _sifields._sigchld._status
  79 #define si_utime        _sifields._sigchld._utime
  80 #define si_stime        _sifields._sigchld._stime
  81 #define si_value        _sifields._rt._sigval
  82 #define si_int          _sifields._rt._sigval.sival_int
  83 #define si_ptr          _sifields._rt._sigval.sival_ptr
  84 #define si_addr         _sifields._sigfault._addr
  85 #define si_band         _sifields._sigpoll._band
  86 #define si_fd           _sifields._sigpoll._fd
  87
  88 /*
  89  * si_code values
  90  * Digital reserves positive values for kernel-generated signals.
  91  */
  92 #define SI_USER         0       /* sent by kill, sigsend, raise */
  93 #define SI_KERNEL       0x80    /* sent by the kernel from somewhere */
  94 #define SI_QUEUE        -1      /* sent by sigqueue */
  95 #define SI_ASYNCIO      -2      /* sent by AIO completion */
  96 #define SI_TIMER        -3      /* sent by timer expiration */
  97 #define SI_MESGQ        -4      /* sent by real time mesq state change */
  98 #define SI_SIGIO        -5      /* sent by queued SIGIO */
  99
 100 #define SI_FROMUSER(siptr)      ((siptr)->si_code <= 0)
 101 #define SI_FROMKERNEL(siptr)    ((siptr)->si_code > 0)
 102
 103 /*
 104  * SIGILL si_codes
 105  */
 106 #define ILL_ILLOPC      1       /* illegal opcode */
 107 #define ILL_ILLOPN      2       /* illegal operand */
 108 #define ILL_ILLADR      3       /* illegal addressing mode */
 109 #define ILL_ILLTRP      4       /* illegal trap */
 110 #define ILL_PRVOPC      5       /* privileged opcode */
 111 #define ILL_PRVREG      6       /* privileged register */
 112 #define ILL_COPROC      7       /* coprocessor error */
 113 #define ILL_BADSTK      8       /* internal stack error */
 114 #define NSIGILL         8
 115
 116 /*
 117  * SIGFPE si_codes
 118  */
 119 #define FPE_INTDIV      1       /* integer divide by zero */
 120 #define FPE_INTOVF      2       /* integer overflow */
 121 #define FPE_FLTDIV      3       /* floating point divide by zero */
 122 #define FPE_FLTOVF      4       /* floating point overflow */
 123 #define FPE_FLTUND      5       /* floating point underflow */
 124 #define FPE_FLTRES      6       /* floating point inexact result */
 125 #define FPE_FLTINV      7       /* floating point invalid operation */
 126 #define FPE_FLTSUB      8       /* subscript out of range */
 127 #define NSIGFPE         8
 128
 129 /*
 130  * SIGSEGV si_codes
 131  */
 132 #define SEGV_MAPERR     1       /* address not mapped to object */
 133 #define SEGV_ACCERR     2       /* invalid permissions for mapped object */
 134 #define NSIGSEGV        2
 135
 136 /*
 137  * SIGBUS si_codes
 138  */
 139 #define BUS_ADRALN      1       /* invalid address alignment */
 140 #define BUS_ADRERR      2       /* non-existant physical address */
 141 #define BUS_OBJERR      3       /* object specific hardware error */
 142 #define NSIGBUS         3
 143
 144 /*
 145  * SIGTRAP si_codes
 146  */
 147 #define TRAP_BRKPT      1       /* process breakpoint */
 148 #define TRAP_TRACE      2       /* process trace trap */
 149 #define NSIGTRAP        2
 150
 151 /*
 152  * SIGCHLD si_codes
 153  */
 154 #define CLD_EXITED      1       /* child has exited */
 155 #define CLD_KILLED      2       /* child was killed */
 156 #define CLD_DUMPED      3       /* child terminated abnormally */
 157 #define CLD_TRAPPED     4       /* traced child has trapped */
 158 #define CLD_STOPPED     5       /* child has stopped */
 159 #define CLD_CONTINUED   6       /* stopped child has continued */
 160 #define NSIGCHLD
 161
 162 /*
 163  * SIGPOLL si_codes
 164  */
 165 #define POLL_IN         1       /* data input available */
 166 #define POLL_OUT        2       /* output buffers available */
 167 #define POLL_MSG        3       /* input message available */
 168 #define POLL_ERR        4       /* i/o error */
 169 #define POLL_PRI        5       /* high priority input available */
 170 #define POLL_HUP        6       /* device disconnected */
 171 #define NSIGPOLL        6
 172
 173 /*
 174  * sigevent definitions
 175  *
 176  * It seems likely that SIGEV_THREAD will have to be handled from
 177  * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
 178  * thread manager then catches and does the appropriate nonsense.
 179  * However, everything is written out here so as to not get lost.
 180  */
 181 #define SIGEV_SIGNAL    0       /* notify via signal */
 182 #define SIGEV_NONE      1       /* other notification: meaningless */
 183 #define SIGEV_THREAD    2       /* deliver via thread creation */
 184
 185 #define SIGEV_MAX_SIZE  64
 186 #define SIGEV_PAD_SIZE  ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
 187
 188 typedef struct sigevent {
 189         sigval_t sigev_value;
 190         int sigev_signo;
 191         int sigev_notify;
 192         union {
 193                 int _pad[SIGEV_PAD_SIZE];
 194
 195                 struct {
 196                         void (*_function)(sigval_t);
 197                         void *_attribute;       /* really pthread_attr_t */
 198                 } _sigev_thread;
 199         } _sigev_un;
 200 } sigevent_t;
 201
 202 #define sigev_notify_function   _sigev_un._sigev_thread._function
 203 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 204
 205 #endif /* __ASM_MIPS_SIGINFO_H */