mirror of https://gitee.com/openkylin/linux.git
188 lines
4.3 KiB
C
188 lines
4.3 KiB
C
/*
|
|
* include/asm-xtensa/signal.h
|
|
*
|
|
* Swiped from SH.
|
|
*
|
|
* 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) 2001 - 2005 Tensilica Inc.
|
|
*/
|
|
|
|
#ifndef _XTENSA_SIGNAL_H
|
|
#define _XTENSA_SIGNAL_H
|
|
|
|
|
|
#define _NSIG 64
|
|
#define _NSIG_BPW 32
|
|
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/types.h>
|
|
|
|
/* Avoid too many header ordering problems. */
|
|
struct siginfo;
|
|
typedef unsigned long old_sigset_t; /* at least 32 bits */
|
|
typedef struct {
|
|
unsigned long sig[_NSIG_WORDS];
|
|
} sigset_t;
|
|
|
|
#endif
|
|
|
|
#define SIGHUP 1
|
|
#define SIGINT 2
|
|
#define SIGQUIT 3
|
|
#define SIGILL 4
|
|
#define SIGTRAP 5
|
|
#define SIGABRT 6
|
|
#define SIGIOT 6
|
|
#define SIGBUS 7
|
|
#define SIGFPE 8
|
|
#define SIGKILL 9
|
|
#define SIGUSR1 10
|
|
#define SIGSEGV 11
|
|
#define SIGUSR2 12
|
|
#define SIGPIPE 13
|
|
#define SIGALRM 14
|
|
#define SIGTERM 15
|
|
#define SIGSTKFLT 16
|
|
#define SIGCHLD 17
|
|
#define SIGCONT 18
|
|
#define SIGSTOP 19
|
|
#define SIGTSTP 20
|
|
#define SIGTTIN 21
|
|
#define SIGTTOU 22
|
|
#define SIGURG 23
|
|
#define SIGXCPU 24
|
|
#define SIGXFSZ 25
|
|
#define SIGVTALRM 26
|
|
#define SIGPROF 27
|
|
#define SIGWINCH 28
|
|
#define SIGIO 29
|
|
#define SIGPOLL SIGIO
|
|
/* #define SIGLOST 29 */
|
|
#define SIGPWR 30
|
|
#define SIGSYS 31
|
|
#define SIGUNUSED 31
|
|
|
|
/* These should not be considered constants from userland. */
|
|
#define SIGRTMIN 32
|
|
#define SIGRTMAX (_NSIG-1)
|
|
|
|
/*
|
|
* SA_FLAGS values:
|
|
*
|
|
* SA_ONSTACK indicates that a registered stack_t will be used.
|
|
* SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
|
|
* 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_NOCLDSTOP 0x00000001
|
|
#define SA_NOCLDWAIT 0x00000002 /* not supported yet */
|
|
#define SA_SIGINFO 0x00000004
|
|
#define SA_ONSTACK 0x08000000
|
|
#define SA_RESTART 0x10000000
|
|
#define SA_NODEFER 0x40000000
|
|
#define SA_RESETHAND 0x80000000
|
|
|
|
#define SA_NOMASK SA_NODEFER
|
|
#define SA_ONESHOT SA_RESETHAND
|
|
#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
|
|
|
|
#define SA_RESTORER 0x04000000
|
|
|
|
/*
|
|
* sigaltstack controls
|
|
*/
|
|
#define SS_ONSTACK 1
|
|
#define SS_DISABLE 2
|
|
|
|
#define MINSIGSTKSZ 2048
|
|
#define SIGSTKSZ 8192
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#ifdef __KERNEL__
|
|
|
|
/*
|
|
* These values of sa_flags are used only by the kernel as part of the
|
|
* irq handling routines.
|
|
*
|
|
* SA_INTERRUPT is also used by the irq handling routines.
|
|
* SA_SHIRQ is for shared interrupt support on PCI and EISA.
|
|
*/
|
|
#define SA_PROBE SA_ONESHOT
|
|
#define SA_SAMPLE_RANDOM SA_RESTART
|
|
#define SA_SHIRQ 0x04000000
|
|
#endif
|
|
|
|
#define SIG_BLOCK 0 /* for blocking signals */
|
|
#define SIG_UNBLOCK 1 /* for unblocking signals */
|
|
#define SIG_SETMASK 2 /* for setting the signal mask */
|
|
|
|
/* Type of a signal handler. */
|
|
typedef void (*__sighandler_t)(int);
|
|
|
|
#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
|
|
#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
|
|
#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
|
|
|
|
#ifdef __KERNEL__
|
|
struct old_sigaction {
|
|
__sighandler_t sa_handler;
|
|
old_sigset_t sa_mask;
|
|
unsigned long sa_flags;
|
|
void (*sa_restorer)(void);
|
|
};
|
|
|
|
struct sigaction {
|
|
__sighandler_t sa_handler;
|
|
unsigned long sa_flags;
|
|
void (*sa_restorer)(void);
|
|
sigset_t sa_mask; /* mask last for extensibility */
|
|
};
|
|
|
|
struct k_sigaction {
|
|
struct sigaction sa;
|
|
};
|
|
|
|
#else
|
|
|
|
/* Here we must cater to libcs that poke about in kernel headers. */
|
|
|
|
struct sigaction {
|
|
union {
|
|
__sighandler_t _sa_handler;
|
|
void (*_sa_sigaction)(int, struct siginfo *, void *);
|
|
} _u;
|
|
sigset_t sa_mask;
|
|
unsigned long sa_flags;
|
|
void (*sa_restorer)(void);
|
|
};
|
|
|
|
#define sa_handler _u._sa_handler
|
|
#define sa_sigaction _u._sa_sigaction
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
typedef struct sigaltstack {
|
|
void *ss_sp;
|
|
int ss_flags;
|
|
size_t ss_size;
|
|
} stack_t;
|
|
|
|
#ifdef __KERNEL__
|
|
#include <asm/sigcontext.h>
|
|
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* _XTENSA_SIGNAL_H */
|