/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* 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 _UAPI_ASM_SIGNAL_H
#define _UAPI_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.
*
* SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
* supported its use and no libc was using it, so the entire sa-restorer
* functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48
* retaining only the SA_RESTORER definition as a reminder to avoid
* accidental reuse of the mask bit.
*/
#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 MINSIGSTKSZ 2048
#define SIGSTKSZ 8192
#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-defs.h>
#ifndef __KERNEL__
struct sigaction {
unsigned int sa_flags;
__sighandler_t sa_handler;
sigset_t sa_mask;
};
#endif
/* IRIX compatible stack_t */
typedef struct sigaltstack {
void __user *ss_sp;
size_t ss_size;
int ss_flags;
} stack_t;
#endif /* _UAPI_ASM_SIGNAL_H */