siginfo.h

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    1 /*      $OpenBSD: siginfo.h,v 1.13 2022/10/25 16:08:26 kettenis Exp $   */
    2 
    3 /*
    4  * Copyright (c) 1997 Theo de Raadt
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   26  */
   27 
   28 #ifndef _SYS_SIGINFO_H
   29 #define _SYS_SIGINFO_H
   30 
   31 #include <sys/cdefs.h>
   32  
   33 union sigval {
   34         int     sival_int;      /* integer value */
   35         void    *sival_ptr;     /* pointer value */
   36 };
   37  
   38 /*
   39  * Negative signal codes are reserved for future use for
   40  * user generated signals.
   41  */
   42 #define SI_FROMUSER(sip)        ((sip)->si_code <= 0)
   43 #define SI_FROMKERNEL(sip)      ((sip)->si_code > 0)
   44  
   45 #define SI_NOINFO       32767   /* no signal information */
   46 #define SI_USER         0       /* user generated signal via kill() */
   47 #define SI_LWP          (-1)    /* user generated signal via lwp_kill()*/
   48 #define SI_QUEUE        (-2)    /* user generated signal via sigqueue()*/
   49 #define SI_TIMER        (-3)    /* from timer expiration */
   50 
   51 #if __POSIX_VISIBLE >= 199309 || __XPG_VISIBLE
   52 /*
   53  * The machine dependent signal codes (SIGILL, SIGFPE,
   54  * SIGSEGV, and SIGBUS)
   55  */
   56 #define ILL_ILLOPC      1       /* illegal opcode */
   57 #define ILL_ILLOPN      2       /* illegal operand */
   58 #define ILL_ILLADR      3       /* illegal addressing mode */
   59 #define ILL_ILLTRP      4       /* illegal trap */
   60 #define ILL_PRVOPC      5       /* privileged opcode */
   61 #define ILL_PRVREG      6       /* privileged register */
   62 #define ILL_COPROC      7       /* co-processor */
   63 #define ILL_BADSTK      8       /* bad stack */
   64 #define NSIGILL         8
   65 
   66 #define EMT_TAGOVF      1       /* tag overflow */
   67 #define NSIGEMT         1
   68 
   69 #define FPE_INTDIV      1       /* integer divide by zero */
   70 #define FPE_INTOVF      2       /* integer overflow */
   71 #define FPE_FLTDIV      3       /* floating point divide by zero */
   72 #define FPE_FLTOVF      4       /* floating point overflow */
   73 #define FPE_FLTUND      5       /* floating point underflow */
   74 #define FPE_FLTRES      6       /* floating point inexact result */
   75 #define FPE_FLTINV      7       /* invalid floating point operation */
   76 #define FPE_FLTSUB      8       /* subscript out of range */
   77 #define NSIGFPE         8
   78 
   79 #define SEGV_MAPERR     1       /* address not mapped to object */
   80 #define SEGV_ACCERR     2       /* invalid permissions */
   81 #define NSIGSEGV        2
   82 
   83 #define BUS_ADRALN      1       /* invalid address alignment */
   84 #define BUS_ADRERR      2       /* non-existent physical address */
   85 #define BUS_OBJERR      3       /* object specific hardware error */
   86 #define NSIGBUS         3
   87 
   88 #endif /* __POSIX_VISIBLE >= 199309 || __XPG_VISIBLE */
   89 
   90 /*
   91  * SIGTRAP signal codes
   92  */
   93 #define TRAP_BRKPT      1       /* breakpoint trap */
   94 #define TRAP_TRACE      2       /* trace trap */
   95 #define NSIGTRAP        2
   96 
   97 /*
   98  * SIGCHLD signal codes
   99  */
  100 #define CLD_EXITED      1       /* child has exited */
  101 #define CLD_KILLED      2       /* child was killed */
  102 #define CLD_DUMPED      3       /* child has coredumped */
  103 #define CLD_TRAPPED     4       /* traced child has stopped */
  104 #define CLD_STOPPED     5       /* child has stopped on signal */
  105 #define CLD_CONTINUED   6       /* stopped child has continued */
  106 #define NSIGCLD         6
  107 
  108 #if 0
  109 /*
  110  * SIGPOLL signal codes - not supported
  111  */
  112 #define POLL_IN         1       /* input available */
  113 #define POLL_OUT        2       /* output possible */
  114 #define POLL_MSG        3       /* message available */
  115 #define POLL_ERR        4       /* I/O error */
  116 #define POLL_PRI        5       /* high priority input available */
  117 #define POLL_HUP        6       /* device disconnected */
  118 #define NSIGPOLL        6
  119 
  120 /*
  121  * SIGPROF signal codes - not supported
  122  */
  123 #define PROF_SIG        1       /* have to set code non-zero */
  124 #define NSIGPROF        1
  125 #endif
  126 
  127 #define SI_MAXSZ        128
  128 #define SI_PAD          ((SI_MAXSZ / sizeof (int)) - 3)
  129 
  130 #include <sys/time.h>
  131 
  132 typedef struct {
  133         int     si_signo;                       /* signal from signal.h */
  134         int     si_code;                        /* code from above */
  135         int     si_errno;                       /* error from errno.h */
  136         union {
  137                 int     _pad[SI_PAD];           /* for future growth */
  138                 struct {                        /* kill(), SIGCHLD */
  139                         pid_t   _pid;           /* process ID */
  140                         uid_t   _uid;
  141                         union {
  142                                 struct {
  143                                         union sigval    _value;
  144                                 } _kill;
  145                                 struct {
  146                                         clock_t _utime;
  147                                         clock_t _stime;
  148                                         int     _status;
  149                                 } _cld;
  150                         } _pdata;
  151                 } _proc;
  152                 struct {        /* SIGSEGV, SIGBUS, SIGILL and SIGFPE */
  153                         void    *_addr;         /* faulting address */
  154                         int     _trapno;        /* illegal trap number */
  155                 } _fault;
  156 #if 0
  157                 struct {                        /* SIGPOLL, SIGXFSZ */
  158                         /* fd not currently available for SIGPOLL */
  159                         int     _fd;            /* file descriptor */
  160                         long    _band;
  161                 } _file;
  162                 struct {                        /* SIGPROF */
  163                         caddr_t _faddr;         /* last fault address */
  164                         timespec _tstamp;       /* real time stamp */
  165                         short   _syscall;       /* current syscall */
  166                         char    _nsysarg;       /* number of arguments */
  167                         char    _fault;         /* last fault type */
  168                         long    _sysarg[8];     /* syscall arguments */
  169                         long    _mstate[17];    /* exactly fills struct*/
  170                 } _prof;
  171 #endif
  172         } _data;
  173 } siginfo_t;
  174 
  175 #define si_pid          _data._proc._pid
  176 #define si_uid          _data._proc._uid
  177 
  178 #define si_status       _data._proc._pdata._cld._status
  179 #define si_stime        _data._proc._pdata._cld._stime
  180 #define si_utime        _data._proc._pdata._cld._utime
  181 #define si_value        _data._proc._pdata._kill._value
  182 #define si_addr         _data._fault._addr
  183 #define si_trapno       _data._fault._trapno
  184 #define si_fd           _data._file._fd
  185 #define si_band         _data._file._band
  186 
  187 #define si_tstamp       _data._prof._tstamp
  188 #define si_syscall      _data._prof._syscall
  189 #define si_nsysarg      _data._prof._nsysarg
  190 #define si_sysarg       _data._prof._sysarg
  191 #define si_fault        _data._prof._fault
  192 #define si_faddr        _data._prof._faddr
  193 #define si_mstate       _data._prof._mstate
  194 
  195 #if defined(_KERNEL)
  196 void    initsiginfo(siginfo_t *, int, u_long, int, union sigval);
  197 #endif
  198 
  199 #endif  /* _SYS_SIGINFO_H */

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FreeBSD/Linux Kernel Cross Reference sys/sys/siginfo.h

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sys/sys/siginfo.h