LXR linux/include/uapi/asm-generic/signal.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _UAPI__ASM_GENERIC_SIGNAL_H
   3#define _UAPI__ASM_GENERIC_SIGNAL_H
   4
   5#include <linux/types.h>
   6
   7#define _NSIG           64
   8#define _NSIG_BPW       __BITS_PER_LONG
   9#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  10
  11#define SIGHUP           1
  12#define SIGINT           2
  13#define SIGQUIT          3
  14#define SIGILL           4
  15#define SIGTRAP          5
  16#define SIGABRT          6
  17#define SIGIOT           6
  18#define SIGBUS           7
  19#define SIGFPE           8
  20#define SIGKILL          9
  21#define SIGUSR1         10
  22#define SIGSEGV         11
  23#define SIGUSR2         12
  24#define SIGPIPE         13
  25#define SIGALRM         14
  26#define SIGTERM         15
  27#define SIGSTKFLT       16
  28#define SIGCHLD         17
  29#define SIGCONT         18
  30#define SIGSTOP         19
  31#define SIGTSTP         20
  32#define SIGTTIN         21
  33#define SIGTTOU         22
  34#define SIGURG          23
  35#define SIGXCPU         24
  36#define SIGXFSZ         25
  37#define SIGVTALRM       26
  38#define SIGPROF         27
  39#define SIGWINCH        28
  40#define SIGIO           29
  41#define SIGPOLL         SIGIO
  42/*
  43#define SIGLOST         29
  44*/
  45#define SIGPWR          30
  46#define SIGSYS          31
  47#define SIGUNUSED       31
  48
  49/* These should not be considered constants from userland.  */
  50#define SIGRTMIN        32
  51#ifndef SIGRTMAX
  52#define SIGRTMAX        _NSIG
  53#endif
  54
  55/*
  56 * SA_FLAGS values:
  57 *
  58 * SA_ONSTACK indicates that a registered stack_t will be used.
  59 * SA_RESTART flag to get restarting signals (which were the default long ago)
  60 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  61 * SA_RESETHAND clears the handler when the signal is delivered.
  62 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  63 * SA_NODEFER prevents the current signal from being masked in the handler.
  64 *
  65 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  66 * Unix names RESETHAND and NODEFER respectively.
  67 */
  68#define SA_NOCLDSTOP    0x00000001
  69#define SA_NOCLDWAIT    0x00000002
  70#define SA_SIGINFO      0x00000004
  71#define SA_ONSTACK      0x08000000
  72#define SA_RESTART      0x10000000
  73#define SA_NODEFER      0x40000000
  74#define SA_RESETHAND    0x80000000
  75
  76#define SA_NOMASK       SA_NODEFER
  77#define SA_ONESHOT      SA_RESETHAND
  78
  79/*
  80 * New architectures should not define the obsolete
  81 *      SA_RESTORER     0x04000000
  82 */
  83
  84#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
  85#define MINSIGSTKSZ     2048
  86#define SIGSTKSZ        8192
  87#endif
  88
  89#ifndef __ASSEMBLY__
  90typedef struct {
  91        unsigned long sig[_NSIG_WORDS];
  92} sigset_t;
  93
  94/* not actually used, but required for linux/syscalls.h */
  95typedef unsigned long old_sigset_t;
  96
  97#include <asm-generic/signal-defs.h>
  98
  99#ifdef SA_RESTORER
 100#define __ARCH_HAS_SA_RESTORER
 101#endif
 102
 103#ifndef __KERNEL__
 104struct sigaction {
 105        __sighandler_t sa_handler;
 106        unsigned long sa_flags;
 107#ifdef SA_RESTORER
 108        __sigrestore_t sa_restorer;
 109#endif
 110        sigset_t sa_mask;               /* mask last for extensibility */
 111};
 112#endif
 113
 114typedef struct sigaltstack {
 115        void __user *ss_sp;
 116        int ss_flags;
 117        size_t ss_size;
 118} stack_t;
 119
 120#endif /* __ASSEMBLY__ */
 121
 122#endif /* _UAPI__ASM_GENERIC_SIGNAL_H */
 123