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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __ASM_GENERIC_SIGNAL_DEFS_H
#define __ASM_GENERIC_SIGNAL_DEFS_H
#include <linux/compiler.h>
/*
* SA_FLAGS values:
*
* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
* SA_SIGINFO delivers the signal with SIGINFO structs.
* 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_NODEFER prevents the current signal from being masked in the handler.
* SA_RESETHAND clears the handler when the signal is delivered.
*
* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
* Unix names RESETHAND and NODEFER respectively.
*
* The following bits are used in architecture-specific SA_* definitions and
* should be avoided for new generic flags: 3, 4, 5, 6, 7, 8, 9, 16, 24, 25, 26.
*/
#ifndef SA_NOCLDSTOP
#define SA_NOCLDSTOP 0x00000001
#endif
#ifndef SA_NOCLDWAIT
#define SA_NOCLDWAIT 0x00000002
#endif
#ifndef SA_SIGINFO
#define SA_SIGINFO 0x00000004
#endif
#ifndef SA_ONSTACK
#define SA_ONSTACK 0x08000000
#endif
#ifndef SA_RESTART
#define SA_RESTART 0x10000000
#endif
#ifndef SA_NODEFER
#define SA_NODEFER 0x40000000
#endif
#ifndef SA_RESETHAND
#define SA_RESETHAND 0x80000000
#endif
#define SA_NOMASK SA_NODEFER
#define SA_ONESHOT SA_RESETHAND
/*
* New architectures should not define the obsolete
* SA_RESTORER 0x04000000
*/
#ifndef SIG_BLOCK
#define SIG_BLOCK 0 /* for blocking signals */
#endif
#ifndef SIG_UNBLOCK
#define SIG_UNBLOCK 1 /* for unblocking signals */
#endif
#ifndef SIG_SETMASK
#define SIG_SETMASK 2 /* for setting the signal mask */
#endif
#ifndef __ASSEMBLY__
typedef void __signalfn_t(int);
typedef __signalfn_t __user *__sighandler_t;
typedef void __restorefn_t(void);
typedef __restorefn_t __user *__sigrestore_t;
#define SIG_DFL ((__force __sighandler_t)0) /* default signal handling */
#define SIG_IGN ((__force __sighandler_t)1) /* ignore signal */
#define SIG_ERR ((__force __sighandler_t)-1) /* error return from signal */
#endif
#endif /* __ASM_GENERIC_SIGNAL_DEFS_H */
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