/* 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_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;
        __kernel_size_t ss_size;
        int ss_flags;
} stack_t;


#endif /* _UAPI_ASM_SIGNAL_H */