/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * 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)

#define SA_RESTORER	0x04000000

#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192

#ifndef __ASSEMBLY__

#include <asm-generic/signal-defs.h>


/* 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


typedef struct sigaltstack {
	void *ss_sp;
	int ss_flags;
	__kernel_size_t ss_size;
} stack_t;

#endif	/* __ASSEMBLY__ */
#endif /* _XTENSA_SIGNAL_H */