sysdeps/unix/sysv/linux/bits/types/siginfo_t.h

   1 #ifndef __siginfo_t_defined
   2 #define __siginfo_t_defined 1
   3
   4 #include <bits/wordsize.h>
   5 #include <bits/types.h>
   6 #include <bits/types/__sigval_t.h>
   7
   8 #define __SI_MAX_SIZE   128
   9 #if __WORDSIZE == 64
  10 # define __SI_PAD_SIZE  ((__SI_MAX_SIZE / sizeof (int)) - 4)
  11 #else
  12 # define __SI_PAD_SIZE  ((__SI_MAX_SIZE / sizeof (int)) - 3)
  13 #endif
  14
  15 /* Some fields of siginfo_t have architecture-specific variations.  */
  16 #include <bits/siginfo-arch.h>
  17 #ifndef __SI_ALIGNMENT
  18 # define __SI_ALIGNMENT         /* nothing */
  19 #endif
  20 #ifndef __SI_BAND_TYPE
  21 # define __SI_BAND_TYPE         long int
  22 #endif
  23 #ifndef __SI_CLOCK_T
  24 # define __SI_CLOCK_T           __clock_t
  25 #endif
  26 #ifndef __SI_ERRNO_THEN_CODE
  27 # define __SI_ERRNO_THEN_CODE   1
  28 #endif
  29 #ifndef __SI_HAVE_SIGSYS
  30 # define __SI_HAVE_SIGSYS       1
  31 #endif
  32 #ifndef __SI_SIGFAULT_ADDL
  33 # define __SI_SIGFAULT_ADDL     /* nothing */
  34 #endif
  35
  36 typedef struct
  37   {
  38     int si_signo;               /* Signal number.  */
  39 #if __SI_ERRNO_THEN_CODE
  40     int si_errno;               /* If non-zero, an errno value associated with
  41                                    this signal, as defined in <errno.h>.  */
  42     int si_code;                /* Signal code.  */
  43 #else
  44     int si_code;
  45     int si_errno;
  46 #endif
  47 #if __WORDSIZE == 64
  48     int __pad0;                 /* Explicit padding.  */
  49 #endif
  50
  51     union
  52       {
  53         int _pad[__SI_PAD_SIZE];
  54
  55          /* kill().  */
  56         struct
  57           {
  58             __pid_t si_pid;     /* Sending process ID.  */
  59             __uid_t si_uid;     /* Real user ID of sending process.  */
  60           } _kill;
  61
  62         /* POSIX.1b timers.  */
  63         struct
  64           {
  65             int si_tid;         /* Timer ID.  */
  66             int si_overrun;     /* Overrun count.  */
  67             __sigval_t si_sigval;       /* Signal value.  */
  68           } _timer;
  69
  70         /* POSIX.1b signals.  */
  71         struct
  72           {
  73             __pid_t si_pid;     /* Sending process ID.  */
  74             __uid_t si_uid;     /* Real user ID of sending process.  */
  75             __sigval_t si_sigval;       /* Signal value.  */
  76           } _rt;
  77
  78         /* SIGCHLD.  */
  79         struct
  80           {
  81             __pid_t si_pid;     /* Which child.  */
  82             __uid_t si_uid;     /* Real user ID of sending process.  */
  83             int si_status;      /* Exit value or signal.  */
  84             __SI_CLOCK_T si_utime;
  85             __SI_CLOCK_T si_stime;
  86           } _sigchld;
  87
  88         /* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
  89         struct
  90           {
  91             void *si_addr;          /* Faulting insn/memory ref.  */
  92             __SI_SIGFAULT_ADDL
  93             short int si_addr_lsb;  /* Valid LSB of the reported address.  */
  94             union
  95               {
  96                 /* used when si_code=SEGV_BNDERR */
  97                 struct
  98                   {
  99                     void *_lower;
 100                     void *_upper;
 101                   } _addr_bnd;
 102                 /* used when si_code=SEGV_PKUERR */
 103                 __uint32_t _pkey;
 104               } _bounds;
 105           } _sigfault;
 106
 107         /* SIGPOLL.  */
 108         struct
 109           {
 110             long int si_band;   /* Band event for SIGPOLL.  */
 111             int si_fd;
 112           } _sigpoll;
 113
 114         /* SIGSYS.  */
 115 #if __SI_HAVE_SIGSYS
 116         struct
 117           {
 118             void *_call_addr;   /* Calling user insn.  */
 119             int _syscall;       /* Triggering system call number.  */
 120             unsigned int _arch; /* AUDIT_ARCH_* of syscall.  */
 121           } _sigsys;
 122 #endif
 123       } _sifields;
 124   } siginfo_t __SI_ALIGNMENT;
 125
 126
 127 /* X/Open requires some more fields with fixed names.  */
 128 #define si_pid          _sifields._kill.si_pid
 129 #define si_uid          _sifields._kill.si_uid
 130 #define si_timerid      _sifields._timer.si_tid
 131 #define si_overrun      _sifields._timer.si_overrun
 132 #define si_status       _sifields._sigchld.si_status
 133 #define si_utime        _sifields._sigchld.si_utime
 134 #define si_stime        _sifields._sigchld.si_stime
 135 #define si_value        _sifields._rt.si_sigval
 136 #define si_int          _sifields._rt.si_sigval.sival_int
 137 #define si_ptr          _sifields._rt.si_sigval.sival_ptr
 138 #define si_addr         _sifields._sigfault.si_addr
 139 #define si_addr_lsb     _sifields._sigfault.si_addr_lsb
 140 #define si_lower        _sifields._sigfault._bounds._addr_bnd._lower
 141 #define si_upper        _sifields._sigfault._bounds._addr_bnd._upper
 142 #define si_pkey         _sifields._sigfault._bounds._pkey
 143 #define si_band         _sifields._sigpoll.si_band
 144 #define si_fd           _sifields._sigpoll.si_fd
 145 #if __SI_HAVE_SIGSYS
 146 # define si_call_addr   _sifields._sigsys._call_addr
 147 # define si_syscall     _sifields._sigsys._syscall
 148 # define si_arch        _sifields._sigsys._arch
 149 #endif
 150
 151 #endif