cregit-Linux how code gets into the kernel

Release 4.14 arch/alpha/include/uapi/asm/signal.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASMAXP_SIGNAL_H

#define _UAPI_ASMAXP_SIGNAL_H

#include <linux/types.h>

/* Avoid too many header ordering problems.  */
struct siginfo;

#ifndef __KERNEL__
/* Here we must cater to libcs that poke about in kernel headers.  */


#define NSIG		32

typedef unsigned long sigset_t;

#endif /* __KERNEL__ */


/*
 * Linux/AXP has different signal numbers that Linux/i386: I'm trying
 * to make it OSF/1 binary compatible, at least for normal binaries.
 */

#define SIGHUP		 1

#define SIGINT		 2

#define SIGQUIT		 3

#define SIGILL		 4

#define SIGTRAP		 5

#define SIGABRT		 6

#define SIGEMT		 7

#define SIGFPE		 8

#define SIGKILL		 9

#define SIGBUS		10

#define SIGSEGV		11

#define SIGSYS		12

#define SIGPIPE		13

#define SIGALRM		14

#define SIGTERM		15

#define SIGURG		16

#define SIGSTOP		17

#define SIGTSTP		18

#define SIGCONT		19

#define SIGCHLD		20

#define SIGTTIN		21

#define SIGTTOU		22

#define SIGIO		23

#define SIGXCPU		24

#define SIGXFSZ		25

#define SIGVTALRM	26

#define SIGPROF		27

#define SIGWINCH	28

#define SIGINFO		29

#define SIGUSR1		30

#define SIGUSR2		31


#define SIGPOLL	SIGIO

#define SIGPWR	SIGINFO

#define SIGIOT	SIGABRT

/* 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.
 */


#define SA_ONSTACK	0x00000001

#define SA_RESTART	0x00000002

#define SA_NOCLDSTOP	0x00000004

#define SA_NODEFER	0x00000008

#define SA_RESETHAND	0x00000010

#define SA_NOCLDWAIT	0x00000020

#define SA_SIGINFO	0x00000040


#define SA_ONESHOT	SA_RESETHAND

#define SA_NOMASK	SA_NODEFER


#define MINSIGSTKSZ	4096

#define SIGSTKSZ	16384


#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__
/* 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;
	
int		sa_flags;
};


#define sa_handler	_u._sa_handler

#define sa_sigaction	_u._sa_sigaction

#endif /* __KERNEL__ */


typedef struct sigaltstack {
	
void __user *ss_sp;
	
int ss_flags;
	
size_t ss_size;

} stack_t;

/* sigstack(2) is deprecated, and will be withdrawn in a future version
   of the X/Open CAE Specification.  Use sigaltstack instead.  It is only
   implemented here for OSF/1 compatibility.  */


struct sigstack {
	
void __user *ss_sp;
	
int ss_onstack;
};


#endif /* _UAPI_ASMAXP_SIGNAL_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells32399.69%150.00%
Greg Kroah-Hartman10.31%150.00%
Total324100.00%2100.00%
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