mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 08:44:21 +08:00
160 lines
5.0 KiB
C
160 lines
5.0 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
|
|
* Copyright (C) 1999 Silicon Graphics, Inc.
|
|
*/
|
|
#ifndef _ASM_SIGNAL_H
|
|
#define _ASM_SIGNAL_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define _NSIG 128
|
|
#define _NSIG_BPW (sizeof(unsigned long) * 8)
|
|
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
|
|
|
|
typedef struct {
|
|
unsigned long sig[_NSIG_WORDS];
|
|
} sigset_t;
|
|
|
|
typedef unsigned long old_sigset_t; /* at least 32 bits */
|
|
|
|
#define SIGHUP 1 /* Hangup (POSIX). */
|
|
#define SIGINT 2 /* Interrupt (ANSI). */
|
|
#define SIGQUIT 3 /* Quit (POSIX). */
|
|
#define SIGILL 4 /* Illegal instruction (ANSI). */
|
|
#define SIGTRAP 5 /* Trace trap (POSIX). */
|
|
#define SIGIOT 6 /* IOT trap (4.2 BSD). */
|
|
#define SIGABRT SIGIOT /* Abort (ANSI). */
|
|
#define SIGEMT 7
|
|
#define SIGFPE 8 /* Floating-point exception (ANSI). */
|
|
#define SIGKILL 9 /* Kill, unblockable (POSIX). */
|
|
#define SIGBUS 10 /* BUS error (4.2 BSD). */
|
|
#define SIGSEGV 11 /* Segmentation violation (ANSI). */
|
|
#define SIGSYS 12
|
|
#define SIGPIPE 13 /* Broken pipe (POSIX). */
|
|
#define SIGALRM 14 /* Alarm clock (POSIX). */
|
|
#define SIGTERM 15 /* Termination (ANSI). */
|
|
#define SIGUSR1 16 /* User-defined signal 1 (POSIX). */
|
|
#define SIGUSR2 17 /* User-defined signal 2 (POSIX). */
|
|
#define SIGCHLD 18 /* Child status has changed (POSIX). */
|
|
#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */
|
|
#define SIGPWR 19 /* Power failure restart (System V). */
|
|
#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */
|
|
#define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */
|
|
#define SIGIO 22 /* I/O now possible (4.2 BSD). */
|
|
#define SIGPOLL SIGIO /* Pollable event occurred (System V). */
|
|
#define SIGSTOP 23 /* Stop, unblockable (POSIX). */
|
|
#define SIGTSTP 24 /* Keyboard stop (POSIX). */
|
|
#define SIGCONT 25 /* Continue (POSIX). */
|
|
#define SIGTTIN 26 /* Background read from tty (POSIX). */
|
|
#define SIGTTOU 27 /* Background write to tty (POSIX). */
|
|
#define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */
|
|
#define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */
|
|
#define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */
|
|
#define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */
|
|
|
|
/* These should not be considered constants from userland. */
|
|
#define SIGRTMIN 32
|
|
#define SIGRTMAX _NSIG
|
|
|
|
/*
|
|
* SA_FLAGS values:
|
|
*
|
|
* SA_ONSTACK indicates that a registered stack_t will be used.
|
|
* SA_RESTART flag to get restarting signals (which were the default long ago)
|
|
* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
|
|
* SA_RESETHAND clears the handler when the signal is delivered.
|
|
* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
|
|
* SA_NODEFER prevents the current signal from being masked in the handler.
|
|
*
|
|
* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
|
|
* Unix names RESETHAND and NODEFER respectively.
|
|
*/
|
|
#define SA_ONSTACK 0x08000000
|
|
#define SA_RESETHAND 0x80000000
|
|
#define SA_RESTART 0x10000000
|
|
#define SA_SIGINFO 0x00000008
|
|
#define SA_NODEFER 0x40000000
|
|
#define SA_NOCLDWAIT 0x00010000
|
|
#define SA_NOCLDSTOP 0x00000001
|
|
|
|
#define SA_NOMASK SA_NODEFER
|
|
#define SA_ONESHOT SA_RESETHAND
|
|
|
|
#define SA_RESTORER 0x04000000 /* Only for o32 */
|
|
|
|
/*
|
|
* sigaltstack controls
|
|
*/
|
|
#define SS_ONSTACK 1
|
|
#define SS_DISABLE 2
|
|
|
|
#define MINSIGSTKSZ 2048
|
|
#define SIGSTKSZ 8192
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#ifdef CONFIG_TRAD_SIGNALS
|
|
#define sig_uses_siginfo(ka) ((ka)->sa.sa_flags & SA_SIGINFO)
|
|
#else
|
|
#define sig_uses_siginfo(ka) (1)
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#define SIG_BLOCK 1 /* for blocking signals */
|
|
#define SIG_UNBLOCK 2 /* for unblocking signals */
|
|
#define SIG_SETMASK 3 /* for setting the signal mask */
|
|
|
|
#include <asm-generic/signal.h>
|
|
|
|
struct sigaction {
|
|
unsigned int sa_flags;
|
|
__sighandler_t sa_handler;
|
|
sigset_t sa_mask;
|
|
};
|
|
|
|
struct k_sigaction {
|
|
struct sigaction sa;
|
|
#ifdef CONFIG_BINFMT_IRIX
|
|
void (*sa_restorer)(void);
|
|
#endif
|
|
};
|
|
|
|
/* IRIX compatible stack_t */
|
|
typedef struct sigaltstack {
|
|
void __user *ss_sp;
|
|
size_t ss_size;
|
|
int ss_flags;
|
|
} stack_t;
|
|
|
|
#ifdef __KERNEL__
|
|
#include <asm/sigcontext.h>
|
|
#include <asm/siginfo.h>
|
|
|
|
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
|
|
|
|
struct pt_regs;
|
|
extern void do_signal(struct pt_regs *regs);
|
|
extern void do_signal32(struct pt_regs *regs);
|
|
|
|
extern int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
|
|
int signr, sigset_t *set);
|
|
extern int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
|
|
int signr, sigset_t *set, siginfo_t *info);
|
|
|
|
extern int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
|
|
int signr, sigset_t *set);
|
|
extern int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
|
|
int signr, sigset_t *set, siginfo_t *info);
|
|
|
|
extern int setup_rt_frame_n32(struct k_sigaction * ka, struct pt_regs *regs,
|
|
int signr, sigset_t *set, siginfo_t *info);
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_SIGNAL_H */
|