1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2#ifndef _UAPI_ASMAXP_SIGNAL_H
  3#define _UAPI_ASMAXP_SIGNAL_H
  4
  5#include <linux/types.h>
  6
  7/* Avoid too many header ordering problems.  */
  8struct siginfo;
  9
 10#ifndef __KERNEL__
 11/* Here we must cater to libcs that poke about in kernel headers.  */
 12
 13#define NSIG		32
 14typedef unsigned long sigset_t;
 15
 16#endif /* __KERNEL__ */
 17
 18
 19/*
 20 * Linux/AXP has different signal numbers that Linux/i386: I'm trying
 21 * to make it OSF/1 binary compatible, at least for normal binaries.
 22 */
 23#define SIGHUP		 1
 24#define SIGINT		 2
 25#define SIGQUIT		 3
 26#define SIGILL		 4
 27#define SIGTRAP		 5
 28#define SIGABRT		 6
 29#define SIGEMT		 7
 30#define SIGFPE		 8
 31#define SIGKILL		 9
 32#define SIGBUS		10
 33#define SIGSEGV		11
 34#define SIGSYS		12
 35#define SIGPIPE		13
 36#define SIGALRM		14
 37#define SIGTERM		15
 38#define SIGURG		16
 39#define SIGSTOP		17
 40#define SIGTSTP		18
 41#define SIGCONT		19
 42#define SIGCHLD		20
 43#define SIGTTIN		21
 44#define SIGTTOU		22
 45#define SIGIO		23
 46#define SIGXCPU		24
 47#define SIGXFSZ		25
 48#define SIGVTALRM	26
 49#define SIGPROF		27
 50#define SIGWINCH	28
 51#define SIGINFO		29
 52#define SIGUSR1		30
 53#define SIGUSR2		31
 54
 55#define SIGPOLL	SIGIO
 56#define SIGPWR	SIGINFO
 57#define SIGIOT	SIGABRT
 58
 59/* These should not be considered constants from userland.  */
 60#define SIGRTMIN	32
 61#define SIGRTMAX	_NSIG
 62
 63/*
 64 * SA_FLAGS values:
 65 *
 66 * SA_ONSTACK indicates that a registered stack_t will be used.
 67 * SA_RESTART flag to get restarting signals (which were the default long ago)
 68 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 69 * SA_RESETHAND clears the handler when the signal is delivered.
 70 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 71 * SA_NODEFER prevents the current signal from being masked in the handler.
 72 *
 73 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 74 * Unix names RESETHAND and NODEFER respectively.
 75 */
 76
 77#define SA_ONSTACK	0x00000001
 78#define SA_RESTART	0x00000002
 79#define SA_NOCLDSTOP	0x00000004
 80#define SA_NODEFER	0x00000008
 81#define SA_RESETHAND	0x00000010
 82#define SA_NOCLDWAIT	0x00000020
 83#define SA_SIGINFO	0x00000040
 84
 85#define SA_ONESHOT	SA_RESETHAND
 86#define SA_NOMASK	SA_NODEFER
 87
 88#define MINSIGSTKSZ	4096
 89#define SIGSTKSZ	16384
 90
 91#define SIG_BLOCK          1	/* for blocking signals */
 92#define SIG_UNBLOCK        2	/* for unblocking signals */
 93#define SIG_SETMASK        3	/* for setting the signal mask */
 94
 95#include <asm-generic/signal-defs.h>
 96
 97#ifndef __KERNEL__
 98/* Here we must cater to libcs that poke about in kernel headers.  */
 99
100struct sigaction {
101	union {
102	  __sighandler_t	_sa_handler;
103	  void (*_sa_sigaction)(int, struct siginfo *, void *);
104	} _u;
105	sigset_t	sa_mask;
106	int		sa_flags;
107};
108
109#define sa_handler	_u._sa_handler
110#define sa_sigaction	_u._sa_sigaction
111
112#endif /* __KERNEL__ */
113
114typedef struct sigaltstack {
115	void __user *ss_sp;
116	int ss_flags;
117	size_t ss_size;
118} stack_t;
119
120/* sigstack(2) is deprecated, and will be withdrawn in a future version
121   of the X/Open CAE Specification.  Use sigaltstack instead.  It is only
122   implemented here for OSF/1 compatibility.  */
123
124struct sigstack {
125	void __user *ss_sp;
126	int ss_onstack;
127};
128
129
130#endif /* _UAPI_ASMAXP_SIGNAL_H */