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a71c1ab50a
Discussing with Matthew Wilcox some of his outstanding patches lead me to this patch (among others). The preamble in struct sigevent can be expressed independently of the architecture. Also use __ARCH_SI_PREAMBLE_SIZE on ia64. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
131 lines
3.0 KiB
C
131 lines
3.0 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1998, 1999, 2001, 2003 Ralf Baechle
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* Copyright (C) 2000, 2001 Silicon Graphics, Inc.
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*/
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#ifndef _ASM_SIGINFO_H
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#define _ASM_SIGINFO_H
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#include <linux/config.h>
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#undef __ARCH_SI_TRAPNO /* exception code needs to fill this ... */
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#define HAVE_ARCH_SIGINFO_T
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/*
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* We duplicate the generic versions - <asm-generic/siginfo.h> is just borked
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* by design ...
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*/
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#define HAVE_ARCH_COPY_SIGINFO
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struct siginfo;
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/*
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* Careful to keep union _sifields from shifting ...
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*/
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#ifdef CONFIG_MIPS32
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#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
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#endif
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#ifdef CONFIG_MIPS64
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#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
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#endif
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#include <asm-generic/siginfo.h>
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typedef struct siginfo {
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int si_signo;
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int si_code;
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int si_errno;
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int __pad0[SI_MAX_SIZE / sizeof(int) - SI_PAD_SIZE - 3];
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union {
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int _pad[SI_PAD_SIZE];
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/* kill() */
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struct {
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pid_t _pid; /* sender's pid */
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__ARCH_SI_UID_T _uid; /* sender's uid */
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} _kill;
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/* POSIX.1b timers */
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struct {
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timer_t _tid; /* timer id */
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int _overrun; /* overrun count */
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char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
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sigval_t _sigval; /* same as below */
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int _sys_private; /* not to be passed to user */
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} _timer;
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/* POSIX.1b signals */
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struct {
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pid_t _pid; /* sender's pid */
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__ARCH_SI_UID_T _uid; /* sender's uid */
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sigval_t _sigval;
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} _rt;
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/* SIGCHLD */
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struct {
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pid_t _pid; /* which child */
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__ARCH_SI_UID_T _uid; /* sender's uid */
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int _status; /* exit code */
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clock_t _utime;
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clock_t _stime;
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} _sigchld;
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/* IRIX SIGCHLD */
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struct {
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pid_t _pid; /* which child */
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clock_t _utime;
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int _status; /* exit code */
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clock_t _stime;
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} _irix_sigchld;
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/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
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struct {
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void __user *_addr; /* faulting insn/memory ref. */
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#ifdef __ARCH_SI_TRAPNO
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int _trapno; /* TRAP # which caused the signal */
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#endif
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} _sigfault;
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/* SIGPOLL, SIGXFSZ (To do ...) */
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struct {
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__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
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int _fd;
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} _sigpoll;
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} _sifields;
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} siginfo_t;
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/*
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* si_code values
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* Again these have been choosen to be IRIX compatible.
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*/
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#undef SI_ASYNCIO
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#undef SI_TIMER
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#undef SI_MESGQ
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#define SI_ASYNCIO -2 /* sent by AIO completion */
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#define SI_TIMER __SI_CODE(__SI_TIMER,-3) /* sent by timer expiration */
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#define SI_MESGQ __SI_CODE(__SI_MESGQ,-4) /* sent by real time mesq state change */
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#ifdef __KERNEL__
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/*
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* Duplicated here because of <asm-generic/siginfo.h> braindamage ...
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*/
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#include <linux/string.h>
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static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
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{
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if (from->si_code < 0)
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memcpy(to, from, sizeof(*to));
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else
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/* _sigchld is currently the largest know union member */
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memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
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}
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#endif
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#endif /* _ASM_SIGINFO_H */
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