include/asm-ppc/siginfo.h

   1 #ifndef _PPC_SIGINFO_H
   2 #define _PPC_SIGINFO_H
   3
   4 /* Copied from i386 from alpha. */
   5
   6 #include <linux/types.h>
   7
   8 typedef union sigval {
   9         int sival_int;
  10         void *sival_ptr;
  11 } sigval_t;
  12
  13 #define SI_MAX_SIZE     128
  14 #define SI_PAD_SIZE     ((SI_MAX_SIZE/sizeof(int)) - 3)
  15
  16 typedef struct siginfo {
  17         int si_signo;
  18         int si_errno;
  19         int si_code;
  20
  21         union {
  22                 int _pad[SI_PAD_SIZE];
  23
  24                 /* kill() */
  25                 struct {
  26                         pid_t _pid;             /* sender's pid */
  27                         uid_t _uid;             /* sender's uid */
  28                 } _kill;
  29
  30                 /* POSIX.1b timers */
  31                 struct {
  32                         unsigned int _timer1;
  33                         unsigned int _timer2;
  34                 } _timer;
  35
  36                 /* POSIX.1b signals */
  37                 struct {
  38                         pid_t _pid;             /* sender's pid */
  39                         uid_t _uid;             /* sender's uid */
  40                         sigval_t _sigval;
  41                 } _rt;
  42
  43                 /* SIGCHLD */
  44                 struct {
  45                         pid_t _pid;             /* which child */
  46                         uid_t _uid;             /* sender's uid */
  47                         int _status;            /* exit code */
  48                         clock_t _utime;
  49                         clock_t _stime;
  50                 } _sigchld;
  51
  52                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
  53                 struct {
  54                         void *_addr; /* faulting insn/memory ref. */
  55                 } _sigfault;
  56
  57                 /* SIGPOLL */
  58                 struct {
  59                         int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
  60                         int _fd;
  61                 } _sigpoll;
  62         } _sifields;
  63 } siginfo_t;
  64
  65 /*
  66  * How these fields are to be accessed.
  67  */
  68 #define si_pid          _sifields._kill._pid
  69 #define si_uid          _sifields._kill._uid
  70 #define si_status       _sifields._sigchld._status
  71 #define si_utime        _sifields._sigchld._utime
  72 #define si_stime        _sifields._sigchld._stime
  73 #define si_value        _sifields._rt._sigval
  74 #define si_int          _sifields._rt._sigval.sival_int
  75 #define si_ptr          _sifields._rt._sigval.sival_ptr
  76 #define si_addr         _sifields._sigfault._addr
  77 #define si_band         _sifields._sigpoll._band
  78 #define si_fd           _sifields._sigpoll._fd
  79
  80 /*
  81  * si_code values
  82  * Digital reserves positive values for kernel-generated signals.
  83  */
  84 #define SI_USER         0       /* sent by kill, sigsend, raise */
  85 #define SI_KERNEL       0x80    /* sent by the kernel from somewhere */
  86 #define SI_QUEUE        -1      /* sent by sigqueue */
  87 #define SI_TIMER        -2      /* sent by timer expiration */
  88 #define SI_MESGQ        -3      /* sent by real time mesq state change */
  89 #define SI_ASYNCIO      -4      /* sent by AIO completion */
  90 #define SI_SIGIO        -5      /* sent by queued SIGIO */
  91
  92 #define SI_FROMUSER(siptr)      ((siptr)->si_code <= 0)
  93 #define SI_FROMKERNEL(siptr)    ((siptr)->si_code > 0)
  94
  95 /*
  96  * SIGILL si_codes
  97  */
  98 #define ILL_ILLOPC      1       /* illegal opcode */
  99 #define ILL_ILLOPN      2       /* illegal operand */
 100 #define ILL_ILLADR      3       /* illegal addressing mode */
 101 #define ILL_ILLTRP      4       /* illegal trap */
 102 #define ILL_PRVOPC      5       /* privileged opcode */
 103 #define ILL_PRVREG      6       /* privileged register */
 104 #define ILL_COPROC      7       /* coprocessor error */
 105 #define ILL_BADSTK      8       /* internal stack error */
 106 #define NSIGILL         8
 107
 108 /*
 109  * SIGFPE si_codes
 110  */
 111 #define FPE_INTDIV      1       /* integer divide by zero */
 112 #define FPE_INTOVF      2       /* integer overflow */
 113 #define FPE_FLTDIV      3       /* floating point divide by zero */
 114 #define FPE_FLTOVF      4       /* floating point overflow */
 115 #define FPE_FLTUND      5       /* floating point underflow */
 116 #define FPE_FLTRES      6       /* floating point inexact result */
 117 #define FPE_FLTINV      7       /* floating point invalid operation */
 118 #define FPE_FLTSUB      8       /* subscript out of range */
 119 #define NSIGFPE         8
 120
 121 /*
 122  * SIGSEGV si_codes
 123  */
 124 #define SEGV_MAPERR     1       /* address not mapped to object */
 125 #define SRGV_ACCERR     2       /* invalid permissions for mapped object */
 126 #define NSIGSEGV        2
 127
 128 /*
 129  * SIGBUS si_codes
 130  */
 131 #define BUS_ADRALN      1       /* invalid address alignment */
 132 #define BUS_ADRERR      2       /* non-existant physical address */
 133 #define BUS_OBJERR      3       /* object specific hardware error */
 134 #define NSIGBUS         3
 135
 136 /*
 137  * SIGTRAP si_codes
 138  */
 139 #define TRAP_BRKPT      1       /* process breakpoint */
 140 #define TRAP_TRACE      2       /* process trace trap */
 141 #define NSIGTRAP        2
 142
 143 /*
 144  * SIGCHLD si_codes
 145  */
 146 #define CLD_EXITED      1       /* child has exited */
 147 #define CLD_KILLED      2       /* child was killed */
 148 #define CLD_DUMPED      3       /* child terminated abnormally */
 149 #define CLD_TRAPPED     4       /* traced child has trapped */
 150 #define CLD_STOPPED     5       /* child has stopped */
 151 #define CLD_CONTINUED   6       /* stopped child has continued */
 152 #define NSIGCHLD
 153
 154 /*
 155  * SIGPOLL si_codes
 156  */
 157 #define POLL_IN         1       /* data input available */
 158 #define POLL_OUT        2       /* output buffers available */
 159 #define POLL_MSG        3       /* input message available */
 160 #define POLL_ERR        4       /* i/o error */
 161 #define POLL_PRI        5       /* high priority input available */
 162 #define POLL_HUP        6       /* device disconnected */
 163 #define NSIGPOLL        6
 164
 165 /*
 166  * sigevent definitions
 167  *
 168  * It seems likely that SIGEV_THREAD will have to be handled from
 169  * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
 170  * thread manager then catches and does the appropriate nonsense.
 171  * However, everything is written out here so as to not get lost.
 172  */
 173 #define SIGEV_SIGNAL    0       /* notify via signal */
 174 #define SIGEV_NONE      1       /* other notification: meaningless */
 175 #define SIGEV_THREAD    2       /* deliver via thread creation */
 176
 177 #define SIGEV_MAX_SIZE  64
 178 #define SIGEV_PAD_SIZE  ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
 179
 180 typedef struct sigevent {
 181         sigval_t sigev_value;
 182         int sigev_signo;
 183         int sigev_notify;
 184         union {
 185                 int _pad[SIGEV_PAD_SIZE];
 186
 187                 struct {
 188                         void (*_function)(sigval_t);
 189                         void *_attribute;       /* really pthread_attr_t */
 190                 } _sigev_thread;
 191         } _sigev_un;
 192 } sigevent_t;
 193
 194 #define sigev_notify_function   _sigev_un._sigev_thread._function
 195 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 196
 197 #endif