241 lines
7.5 KiB
C
241 lines
7.5 KiB
C
/* $NetBSD: siginfo.h,v 1.19 2009/03/27 11:05:43 drochner Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_SIGINFO_H_
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#define _SYS_SIGINFO_H_
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#include <machine/signal.h> /* XXX: __HAVE_SIGINFO */
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#ifdef _KERNEL
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#include <sys/queue.h>
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#endif
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typedef union sigval {
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int sival_int;
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void *sival_ptr;
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} sigval_t;
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struct _ksiginfo {
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int _signo;
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int _code;
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int _errno;
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#ifdef _LP64
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/* In _LP64 the union starts on an 8-byte boundary. */
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int _pad;
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#endif
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union {
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struct {
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pid_t _pid;
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uid_t _uid;
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sigval_t _value;
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} _rt;
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struct {
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pid_t _pid;
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uid_t _uid;
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int _status;
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clock_t _utime;
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clock_t _stime;
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} _child;
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struct {
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void *_addr;
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int _trap;
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} _fault;
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struct {
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long _band;
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int _fd;
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} _poll;
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} _reason;
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};
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#ifdef _KERNEL
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typedef struct ksiginfo {
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u_long ksi_flags; /* 4 or 8 bytes (LP64) */
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CIRCLEQ_ENTRY(ksiginfo) ksi_list;
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struct _ksiginfo ksi_info;
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lwpid_t ksi_lid; /* 0, or directed to LWP */
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} ksiginfo_t;
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#define KSI_TRAP 0x01 /* signal caused by trap */
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#define KSI_EMPTY 0x02 /* no additional information */
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#define KSI_QUEUED 0x04 /* on a sigpend_t queue */
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#define KSI_FROMPOOL 0x08 /* allocated from the ksiginfo pool */
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/* Macros to initialize a ksiginfo_t. */
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#define KSI_INIT(ksi) \
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do { \
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memset((ksi), 0, sizeof(*(ksi))); \
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} while (/*CONSTCOND*/0)
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#define KSI_INIT_EMPTY(ksi) \
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do { \
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KSI_INIT((ksi)); \
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(ksi)->ksi_flags = KSI_EMPTY; \
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} while (/*CONSTCOND*/0)
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#define KSI_INIT_TRAP(ksi) \
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do { \
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KSI_INIT((ksi)); \
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(ksi)->ksi_flags = KSI_TRAP; \
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} while (/*CONSTCOND*/0)
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/* Copy the part of ksiginfo_t without the queue pointers */
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#define KSI_COPY(fksi, tksi) \
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do { \
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(tksi)->ksi_info = (fksi)->ksi_info; \
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(tksi)->ksi_flags = (fksi)->ksi_flags; \
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} while (/*CONSTCOND*/0)
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/* Predicate macros to test how a ksiginfo_t was generated. */
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#define KSI_TRAP_P(ksi) (((ksi)->ksi_flags & KSI_TRAP) != 0)
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#define KSI_EMPTY_P(ksi) (((ksi)->ksi_flags & KSI_EMPTY) != 0)
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/*
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* Old-style signal handler "code" arguments were only non-zero for
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* signals caused by traps.
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*/
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#define KSI_TRAPCODE(ksi) (KSI_TRAP_P(ksi) ? (ksi)->ksi_trap : 0)
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#endif /* _KERNEL */
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typedef union siginfo {
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char si_pad[128]; /* Total size; for future expansion */
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struct _ksiginfo _info;
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} siginfo_t;
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/** Field access macros */
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#define si_signo _info._signo
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#define si_code _info._code
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#define si_errno _info._errno
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#define si_value _info._reason._rt._value
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#define si_pid _info._reason._child._pid
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#define si_uid _info._reason._child._uid
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#define si_status _info._reason._child._status
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#define si_utime _info._reason._child._utime
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#define si_stime _info._reason._child._stime
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#define si_addr _info._reason._fault._addr
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#define si_trap _info._reason._fault._trap
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#define si_band _info._reason._poll._band
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#define si_fd _info._reason._poll._fd
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#ifdef _KERNEL
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/** Field access macros */
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#define ksi_signo ksi_info._signo
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#define ksi_code ksi_info._code
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#define ksi_errno ksi_info._errno
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#define ksi_value ksi_info._reason._rt._value
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#define ksi_pid ksi_info._reason._child._pid
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#define ksi_uid ksi_info._reason._child._uid
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#define ksi_status ksi_info._reason._child._status
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#define ksi_utime ksi_info._reason._child._utime
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#define ksi_stime ksi_info._reason._child._stime
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#define ksi_addr ksi_info._reason._fault._addr
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#define ksi_trap ksi_info._reason._fault._trap
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#define ksi_band ksi_info._reason._poll._band
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#define ksi_fd ksi_info._reason._poll._fd
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#endif /* _KERNEL */
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/** si_code */
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/* SIGILL */
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#define ILL_ILLOPC 1 /* Illegal opcode */
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#define ILL_ILLOPN 2 /* Illegal operand */
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#define ILL_ILLADR 3 /* Illegal addressing mode */
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#define ILL_ILLTRP 4 /* Illegal trap */
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#define ILL_PRVOPC 5 /* Privileged opcode */
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#define ILL_PRVREG 6 /* Privileged register */
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#define ILL_COPROC 7 /* Coprocessor error */
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#define ILL_BADSTK 8 /* Internal stack error */
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/* SIGFPE */
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#define FPE_INTOVF 1 /* integer divide by zero */
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#define FPE_INTDIV 2 /* integer overflow */
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#define FPE_FLTDIV 3 /* floating-point divide by zero */
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#define FPE_FLTOVF 4 /* floating-point overflow */
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#define FPE_FLTUND 5 /* floating-point underflow */
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#define FPE_FLTRES 6 /* floating-point inexact result */
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#define FPE_FLTINV 7 /* floating-point invalid operation */
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#define FPE_FLTSUB 8 /* subscript out of range */
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/* SIGSEGV */
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#define SEGV_MAPERR 1 /* Address not mapped to object */
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#define SEGV_ACCERR 2 /* Invalid permissions for mapped object*/
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/* SIGBUS */
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#define BUS_ADRALN 1 /* Invalid address alignment */
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#define BUS_ADRERR 2 /* Non-existent physical address */
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#define BUS_OBJERR 3 /* Object specific hardware error */
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/* SIGTRAP */
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#define TRAP_BRKPT 1 /* Process breakpoint */
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#define TRAP_TRACE 2 /* Process trace trap */
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/* SIGCHLD */
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#define CLD_EXITED 1 /* Child has exited */
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#define CLD_KILLED 2 /* Child has terminated abnormally but */
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/* did not create a core file */
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#define CLD_DUMPED 3 /* Child has terminated abnormally and */
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/* created a core file */
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#define CLD_TRAPPED 4 /* Traced child has trapped */
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#define CLD_STOPPED 5 /* Child has stopped */
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#define CLD_CONTINUED 6 /* Stopped child has continued */
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/* SIGPOLL */
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#define POLL_IN 1 /* Data input available */
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#define POLL_OUT 2 /* Output buffers available */
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#define POLL_MSG 3 /* Input message available */
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#define POLL_ERR 4 /* I/O Error */
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#define POLL_PRI 5 /* High priority input available */
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#define POLL_HUP 6 /* Device disconnected */
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/** si_code */
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#define SI_USER 0 /* Sent by kill(2) */
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#define SI_QUEUE -1 /* Sent by the sigqueue(2) */
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#define SI_TIMER -2 /* Generated by expiration of a timer */
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/* set by timer_settime(2) */
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#define SI_ASYNCIO -3 /* Generated by completion of an */
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/* asynchronous I/O signal */
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#define SI_MESGQ -4 /* Generated by arrival of a message on */
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/* an empty message queue */
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#if defined(_KERNEL) || defined(_NETBSD_SOURCE)
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#define SI_LWP -5 /* Generated by _lwp_kill(2) */
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#define SI_NOINFO 32767 /* No signal specific info available */
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#endif
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#endif /* !_SYS_SIGINFO_H_ */
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