mirror of
https://git.proxmox.com/git/mirror_ubuntu-kernels.git
synced 2026-01-27 15:44:19 +00:00
7da5082a2f
Instead of documenting the arch-specific flag values in a comment at the top where they may be easily overlooked, document them in comments inline with the definitions in numerical order so that it is clear why specific values must be chosen for new generic flags and to reduce the likelihood of conflicts between generic and arch-specific flags. Signed-off-by: Peter Collingbourne <pcc@google.com> Link: https://linux-review.googlesource.com/id/I40a129cf7c3a71ba1bfd6d936c544072ee3b7ce6 Link: https://lkml.kernel.org/r/198c8b68c76bf3ed73117d817c7cdf9bc0eb174f.1605582887.git.pcc@google.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/* 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.
|
|
*/
|
|
#ifndef SA_NOCLDSTOP
|
|
#define SA_NOCLDSTOP 0x00000001
|
|
#endif
|
|
#ifndef SA_NOCLDWAIT
|
|
#define SA_NOCLDWAIT 0x00000002
|
|
#endif
|
|
#ifndef SA_SIGINFO
|
|
#define SA_SIGINFO 0x00000004
|
|
#endif
|
|
/* 0x00000008 used on alpha, mips, parisc */
|
|
/* 0x00000010 used on alpha, parisc */
|
|
/* 0x00000020 used on alpha, parisc, sparc */
|
|
/* 0x00000040 used on alpha, parisc */
|
|
/* 0x00000080 used on parisc */
|
|
/* 0x00000100 used on sparc */
|
|
/* 0x00000200 used on sparc */
|
|
/* 0x00010000 used on mips */
|
|
/* 0x01000000 used on x86 */
|
|
/* 0x02000000 used on x86 */
|
|
/*
|
|
* New architectures should not define the obsolete
|
|
* SA_RESTORER 0x04000000
|
|
*/
|
|
#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
|
|
|
|
#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 */
|