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/* $NetBSD: siginfo.h,v 1.34 2019/09/30 21:13:33 kamil Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_SIGINFO_H_
#define _SYS_SIGINFO_H_
#include <machine/signal.h>
#include <sys/featuretest.h>
#ifdef _KERNEL
#include <sys/queue.h>
#endif
typedef union sigval {
int sival_int;
void *sival_ptr;
} sigval_t;
struct _ksiginfo {
int _signo;
int _code;
int _errno;
#ifdef _LP64
/* In _LP64 the union starts on an 8-byte boundary. */
int _pad;
#endif
union {
struct {
pid_t _pid;
uid_t _uid;
sigval_t _value;
} _rt;
struct {
pid_t _pid;
uid_t _uid;
int _status;
clock_t _utime;
clock_t _stime;
} _child;
struct {
void *_addr;
int _trap;
int _trap2;
int _trap3;
} _fault;
struct {
long _band;
int _fd;
} _poll;
struct {
int _sysnum;
int _retval[2];
int _error;
uint64_t _args[8]; /* SYS_MAXSYSARGS */
} _syscall;
struct {
int _pe_report_event;
union {
pid_t _pe_other_pid;
lwpid_t _pe_lwp;
} _option;
} _ptrace_state;
} _reason;
};
#ifdef _KERNEL
typedef struct ksiginfo {
u_long ksi_flags; /* 4 or 8 bytes (LP64) */
TAILQ_ENTRY(ksiginfo) ksi_list;
struct _ksiginfo ksi_info;
lwpid_t ksi_lid; /* 0, or directed to LWP */
} ksiginfo_t;
#define KSI_TRAP 0x01 /* signal caused by trap */
#define KSI_EMPTY 0x02 /* no additional information */
#define KSI_QUEUED 0x04 /* on a sigpend_t queue */
#define KSI_FROMPOOL 0x08 /* allocated from the ksiginfo pool */
/* Macros to initialize a ksiginfo_t. */
#define KSI_INIT(ksi) \
do { \
memset((ksi), 0, sizeof(*(ksi))); \
} while (/*CONSTCOND*/0)
#define KSI_INIT_EMPTY(ksi) \
do { \
KSI_INIT((ksi)); \
(ksi)->ksi_flags = KSI_EMPTY; \
} while (/*CONSTCOND*/0)
#define KSI_INIT_TRAP(ksi) \
do { \
KSI_INIT((ksi)); \
(ksi)->ksi_flags = KSI_TRAP; \
} while (/*CONSTCOND*/0)
/* Copy the part of ksiginfo_t without the queue pointers */
#define KSI_COPY(fksi, tksi) \
do { \
(tksi)->ksi_info = (fksi)->ksi_info; \
(tksi)->ksi_flags = (fksi)->ksi_flags; \
} while (/*CONSTCOND*/0)
/* Predicate macros to test how a ksiginfo_t was generated. */
#define KSI_TRAP_P(ksi) (((ksi)->ksi_flags & KSI_TRAP) != 0)
#define KSI_EMPTY_P(ksi) (((ksi)->ksi_flags & KSI_EMPTY) != 0)
/*
* Old-style signal handler "code" arguments were only non-zero for
* signals caused by traps.
*/
#define KSI_TRAPCODE(ksi) (KSI_TRAP_P(ksi) ? (ksi)->ksi_trap : 0)
#endif /* _KERNEL */
typedef union siginfo {
char si_pad[128]; /* Total size; for future expansion */
struct _ksiginfo _info;
} siginfo_t;
/** Field access macros */
#define si_signo _info._signo
#define si_code _info._code
#define si_errno _info._errno
#define si_value _info._reason._rt._value
#define si_pid _info._reason._child._pid
#define si_uid _info._reason._child._uid
#define si_status _info._reason._child._status
#define si_utime _info._reason._child._utime
#define si_stime _info._reason._child._stime
#define si_addr _info._reason._fault._addr
#define si_trap _info._reason._fault._trap
#define si_trap2 _info._reason._fault._trap2
#define si_trap3 _info._reason._fault._trap3
#define si_band _info._reason._poll._band
#define si_fd _info._reason._poll._fd
#define si_sysnum _info._reason._syscall._sysnum
#define si_retval _info._reason._syscall._retval
#define si_error _info._reason._syscall._error
#define si_args _info._reason._syscall._args
#define si_pe_report_event _info._reason._ptrace_state._pe_report_event
#define si_pe_other_pid _info._reason._ptrace_state._option._pe_other_pid
#define si_pe_lwp _info._reason._ptrace_state._option._pe_lwp
#ifdef _KERNEL
/** Field access macros */
#define ksi_signo ksi_info._signo
#define ksi_code ksi_info._code
#define ksi_errno ksi_info._errno
#define ksi_value ksi_info._reason._rt._value
#define ksi_pid ksi_info._reason._child._pid
#define ksi_uid ksi_info._reason._child._uid
#define ksi_status ksi_info._reason._child._status
#define ksi_utime ksi_info._reason._child._utime
#define ksi_stime ksi_info._reason._child._stime
#define ksi_addr ksi_info._reason._fault._addr
#define ksi_trap ksi_info._reason._fault._trap
#define ksi_trap2 ksi_info._reason._fault._trap2
#define ksi_trap3 ksi_info._reason._fault._trap3
#define ksi_band ksi_info._reason._poll._band
#define ksi_fd ksi_info._reason._poll._fd
#define ksi_sysnum ksi_info._reason._syscall._sysnum
#define ksi_retval ksi_info._reason._syscall._retval
#define ksi_error ksi_info._reason._syscall._error
#define ksi_args ksi_info._reason._syscall._args
#define ksi_pe_report_event ksi_info._reason._ptrace_state._pe_report_event
#define ksi_pe_other_pid ksi_info._reason._ptrace_state._option._pe_other_pid
#define ksi_pe_lwp ksi_info._reason._ptrace_state._option._pe_lwp
#endif /* _KERNEL */
/** si_code */
/* SIGILL */
#define ILL_ILLOPC 1 /* Illegal opcode */
#define ILL_ILLOPN 2 /* Illegal operand */
#define ILL_ILLADR 3 /* Illegal addressing mode */
#define ILL_ILLTRP 4 /* Illegal trap */
#define ILL_PRVOPC 5 /* Privileged opcode */
#define ILL_PRVREG 6 /* Privileged register */
#define ILL_COPROC 7 /* Coprocessor error */
#define ILL_BADSTK 8 /* Internal stack error */
/* SIGFPE */
#define FPE_INTDIV 1 /* Integer divide by zero */
#define FPE_INTOVF 2 /* Integer overflow */
#define FPE_FLTDIV 3 /* Floating point divide by zero */
#define FPE_FLTOVF 4 /* Floating point overflow */
#define FPE_FLTUND 5 /* Floating point underflow */
#define FPE_FLTRES 6 /* Floating point inexact result */
#define FPE_FLTINV 7 /* Invalid Floating point operation */
#define FPE_FLTSUB 8 /* Subscript out of range */
/* SIGSEGV */
#define SEGV_MAPERR 1 /* Address not mapped to object */
#define SEGV_ACCERR 2 /* Invalid permissions for mapped object*/
/* SIGBUS */
#define BUS_ADRALN 1 /* Invalid address alignment */
#define BUS_ADRERR 2 /* Non-existent physical address */
#define BUS_OBJERR 3 /* Object specific hardware error */
/* SIGTRAP */
#define TRAP_BRKPT 1 /* Process breakpoint */
#define TRAP_TRACE 2 /* Process trace trap */
#define TRAP_EXEC 3 /* Process exec trap */
#define TRAP_CHLD 4 /* Process child trap */
#define TRAP_LWP 5 /* Process lwp trap */
#define TRAP_DBREG 6 /* Process hardware debug register trap */
#define TRAP_SCE 7 /* Process syscall entry trap */
#define TRAP_SCX 8 /* Process syscall exit trap */
/* SIGCHLD */
#define CLD_EXITED 1 /* Child has exited */
#define CLD_KILLED 2 /* Child has terminated abnormally but */
/* did not create a core file */
#define CLD_DUMPED 3 /* Child has terminated abnormally and */
/* created a core file */
#define CLD_TRAPPED 4 /* Traced child has trapped */
#define CLD_STOPPED 5 /* Child has stopped */
#define CLD_CONTINUED 6 /* Stopped child has continued */
/* SIGIO */
#define POLL_IN 1 /* Data input available */
#define POLL_OUT 2 /* Output buffers available */
#define POLL_MSG 3 /* Input message available */
#define POLL_ERR 4 /* I/O Error */
#define POLL_PRI 5 /* High priority input available */
#define POLL_HUP 6 /* Device disconnected */
/** si_code */
#define SI_USER 0 /* Sent by kill(2) */
#define SI_QUEUE -1 /* Sent by the sigqueue(2) */
#define SI_TIMER -2 /* Generated by expiration of a timer */
/* set by timer_settime(2) */
#define SI_ASYNCIO -3 /* Generated by completion of an */
/* asynchronous I/O signal */
#define SI_MESGQ -4 /* Generated by arrival of a message on */
/* an empty message queue */
#if defined(_KERNEL) || defined(_NETBSD_SOURCE)
#define SI_LWP -5 /* Generated by _lwp_kill(2) */
#define SI_NOINFO 32767 /* No signal specific info available */
#endif
#endif /* !_SYS_SIGINFO_H_ */
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