[mirror_ubuntu-bionic-kernel.git] / arch / mips / include / uapi / asm / signal.h

/* 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 */
Commit	Line	Data
e2be04c7	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
61730c53 DH	2	/*
	3	* This file is subject to the terms and conditions of the GNU General Public
	4	* License. See the file "COPYING" in the main directory of this archive
	5	* for more details.
	6	*
	7	* Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
	8	* Copyright (C) 1999 Silicon Graphics, Inc.
	9	*/
	10	#ifndef _UAPI_ASM_SIGNAL_H
	11	#define _UAPI_ASM_SIGNAL_H
	12
	13	#include <linux/types.h>
	14
	15	#define _NSIG 128
	16	#define _NSIG_BPW (sizeof(unsigned long) * 8)
	17	#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
	18
	19	typedef struct {
	20	unsigned long sig[_NSIG_WORDS];
	21	} sigset_t;
	22
	23	typedef unsigned long old_sigset_t; /* at least 32 bits */
	24
	25	#define SIGHUP 1 /* Hangup (POSIX). */
	26	#define SIGINT 2 /* Interrupt (ANSI). */
	27	#define SIGQUIT 3 /* Quit (POSIX). */
70342287 RB	28	#define SIGILL 4 /* Illegal instruction (ANSI). */
	29	#define SIGTRAP 5 /* Trace trap (POSIX). */
	30	#define SIGIOT 6 /* IOT trap (4.2 BSD). */
	31	#define SIGABRT SIGIOT /* Abort (ANSI). */
61730c53 DH	32	#define SIGEMT 7
	33	#define SIGFPE 8 /* Floating-point exception (ANSI). */
	34	#define SIGKILL 9 /* Kill, unblockable (POSIX). */
70342287	35	#define SIGBUS 10 /* BUS error (4.2 BSD). */
61730c53 DH	36	#define SIGSEGV 11 /* Segmentation violation (ANSI). */
61730c53 DH	37	#define SIGSYS 12
70342287 RB	38	#define SIGPIPE 13 /* Broken pipe (POSIX). */
	39	#define SIGALRM 14 /* Alarm clock (POSIX). */
	40	#define SIGTERM 15 /* Termination (ANSI). */
61730c53 DH	41	#define SIGUSR1 16 /* User-defined signal 1 (POSIX). */
	42	#define SIGUSR2 17 /* User-defined signal 2 (POSIX). */
	43	#define SIGCHLD 18 /* Child status has changed (POSIX). */
70342287	44	#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */
61730c53 DH	45	#define SIGPWR 19 /* Power failure restart (System V). */
	46	#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */
	47	#define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */
70342287 RB	48	#define SIGIO 22 /* I/O now possible (4.2 BSD). */
70342287 RB	49	#define SIGPOLL SIGIO /* Pollable event occurred (System V). */
61730c53 DH	50	#define SIGSTOP 23 /* Stop, unblockable (POSIX). */
	51	#define SIGTSTP 24 /* Keyboard stop (POSIX). */
	52	#define SIGCONT 25 /* Continue (POSIX). */
	53	#define SIGTTIN 26 /* Background read from tty (POSIX). */
	54	#define SIGTTOU 27 /* Background write to tty (POSIX). */
	55	#define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */
	56	#define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */
	57	#define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */
70342287	58	#define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */
61730c53 DH	59
	60	/* These should not be considered constants from userland. */
	61	#define SIGRTMIN 32
	62	#define SIGRTMAX _NSIG
	63
	64	/*
	65	* SA_FLAGS values:
	66	*
	67	* SA_ONSTACK indicates that a registered stack_t will be used.
	68	* SA_RESTART flag to get restarting signals (which were the default long ago)
	69	* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
	70	* SA_RESETHAND clears the handler when the signal is delivered.
	71	* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
	72	* SA_NODEFER prevents the current signal from being masked in the handler.
	73	*
	74	* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
	75	* Unix names RESETHAND and NODEFER respectively.
80fa8181 RB	76	*
	77	* SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
	78	* supported its use and no libc was using it, so the entire sa-restorer
	79	* functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48
	80	* retaining only the SA_RESTORER definition as a reminder to avoid
	81	* accidental reuse of the mask bit.
61730c53 DH	82	*/
	83	#define SA_ONSTACK 0x08000000
	84	#define SA_RESETHAND 0x80000000
	85	#define SA_RESTART 0x10000000
	86	#define SA_SIGINFO 0x00000008
	87	#define SA_NODEFER 0x40000000
	88	#define SA_NOCLDWAIT 0x00010000
	89	#define SA_NOCLDSTOP 0x00000001
	90
	91	#define SA_NOMASK SA_NODEFER
	92	#define SA_ONESHOT SA_RESETHAND
	93
61730c53 DH	94	#define MINSIGSTKSZ 2048
	95	#define SIGSTKSZ 8192
	96
	97
	98	#define SIG_BLOCK 1 /* for blocking signals */
	99	#define SIG_UNBLOCK 2 /* for unblocking signals */
	100	#define SIG_SETMASK 3 /* for setting the signal mask */
	101
	102	#include <asm-generic/signal-defs.h>
	103
574c4866	104	#ifndef __KERNEL__
61730c53 DH	105	struct sigaction {
	106	unsigned int sa_flags;
	107	__sighandler_t sa_handler;
	108	sigset_t sa_mask;
	109	};
574c4866	110	#endif
61730c53	111
61730c53 DH	112	/* IRIX compatible stack_t */
	113	typedef struct sigaltstack {
	114	void __user *ss_sp;
	115	size_t ss_size;
	116	int ss_flags;
	117	} stack_t;
	118
	119
	120	#endif /* _UAPI_ASM_SIGNAL_H */