libc/include/llvm-libc-types/siginfo_t.h

   1 //===-- Definition of siginfo_t type --------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_TYPES_SIGINFO_T_H
  10 #define LLVM_LIBC_TYPES_SIGINFO_T_H
  11
  12 #include "clock_t.h"
  13 #include "pid_t.h"
  14 #include "uid_t.h"
  15 #include "union_sigval.h"
  16
  17 #define SI_MAX_SIZE 128
  18
  19 typedef struct {
  20   int si_signo; /* Signal number.  */
  21   int si_errno; /* If non-zero, an errno value associated with
  22                    this signal, as defined in <errno.h>.  */
  23   int si_code;  /* Signal code.  */
  24   union {
  25     int _si_pad[SI_MAX_SIZE / sizeof(int)];
  26
  27     /* kill() */
  28     struct {
  29       pid_t si_pid; /* sender's pid */
  30       uid_t si_uid; /* sender's uid */
  31     } _kill;
  32
  33     /* POSIX.1b timers */
  34     struct {
  35       int si_tid;             /* timer id */
  36       int _overrun;           /* overrun count */
  37       union sigval si_sigval; /* same as below */
  38     } _timer;
  39
  40     /* POSIX.1b signals */
  41     struct {
  42       pid_t si_pid; /* sender's pid */
  43       uid_t si_uid; /* sender's uid */
  44       union sigval si_sigval;
  45     } _rt;
  46
  47     /* SIGCHLD */
  48     struct {
  49       pid_t si_pid;  /* which child */
  50       uid_t si_uid;  /* sender's uid */
  51       int si_status; /* exit code */
  52       clock_t si_utime;
  53       clock_t si_stime;
  54     } _sigchld;
  55
  56     /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
  57     struct {
  58       void *si_addr;         /* faulting insn/memory ref. */
  59       short int si_addr_lsb; /* Valid LSB of the reported address.  */
  60       union {
  61         /* used when si_code=SEGV_BNDERR */
  62         struct {
  63           void *_lower;
  64           void *_upper;
  65         } _addr_bnd;
  66         /* used when si_code=SEGV_PKUERR */
  67         __UINT32_TYPE__ _pkey;
  68       } _bounds;
  69     } _sigfault;
  70
  71     /* SIGPOLL */
  72     struct {
  73       long int si_band; /* POLL_IN, POLL_OUT, POLL_MSG */
  74       int si_fd;
  75     } _sigpoll;
  76
  77     /* SIGSYS */
  78     struct {
  79       void *_call_addr;   /* calling user insn */
  80       int _syscall;       /* triggering system call number */
  81       unsigned int _arch; /* AUDIT_ARCH_* of syscall */
  82     } _sigsys;
  83   } _sifields;
  84 } siginfo_t;
  85
  86 #undef SI_MAX_SIZE
  87
  88 #define si_pid _sifields._kill.si_pid
  89 #define si_uid _sifields._kill.si_uid
  90 #define si_timerid _sifields._timer.si_tid
  91 #define si_overrun _sifields._timer.si_overrun
  92 #define si_status _sifields._sigchld.si_status
  93 #define si_utime _sifields._sigchld.si_utime
  94 #define si_stime _sifields._sigchld.si_stime
  95 #define si_value _sifields._rt.si_sigval
  96 #define si_int _sifields._rt.si_sigval.sival_int
  97 #define si_ptr _sifields._rt.si_sigval.sival_ptr
  98 #define si_addr _sifields._sigfault.si_addr
  99 #define si_addr_lsb _sifields._sigfault.si_addr_lsb
 100 #define si_lower _sifields._sigfault._bounds._addr_bnd._lower
 101 #define si_upper _sifields._sigfault._bounds._addr_bnd._upper
 102 #define si_pkey _sifields._sigfault._bounds._pkey
 103 #define si_band _sifields._sigpoll.si_band
 104 #define si_fd _sifields._sigpoll.si_fd
 105 #define si_call_addr _sifields._sigsys._call_addr
 106 #define si_syscall _sifields._sigsys._syscall
 107 #define si_arch _sifields._sigsys._arch
 108
 109 #endif // LLVM_LIBC_TYPES_SIGINFO_T_H