LXR linux/arch/x86/include/uapi/asm/signal.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _UAPI_ASM_X86_SIGNAL_H
   3#define _UAPI_ASM_X86_SIGNAL_H
   4
   5#ifndef __ASSEMBLY__
   6#include <linux/types.h>
   7#include <linux/time.h>
   8#include <linux/compiler.h>
   9
  10/* Avoid too many header ordering problems.  */
  11struct siginfo;
  12
  13#ifndef __KERNEL__
  14/* Here we must cater to libcs that poke about in kernel headers.  */
  15
  16#define NSIG            32
  17typedef unsigned long sigset_t;
  18
  19#endif /* __KERNEL__ */
  20#endif /* __ASSEMBLY__ */
  21
  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 SIGIOT           6
  30#define SIGBUS           7
  31#define SIGFPE           8
  32#define SIGKILL          9
  33#define SIGUSR1         10
  34#define SIGSEGV         11
  35#define SIGUSR2         12
  36#define SIGPIPE         13
  37#define SIGALRM         14
  38#define SIGTERM         15
  39#define SIGSTKFLT       16
  40#define SIGCHLD         17
  41#define SIGCONT         18
  42#define SIGSTOP         19
  43#define SIGTSTP         20
  44#define SIGTTIN         21
  45#define SIGTTOU         22
  46#define SIGURG          23
  47#define SIGXCPU         24
  48#define SIGXFSZ         25
  49#define SIGVTALRM       26
  50#define SIGPROF         27
  51#define SIGWINCH        28
  52#define SIGIO           29
  53#define SIGPOLL         SIGIO
  54/*
  55#define SIGLOST         29
  56*/
  57#define SIGPWR          30
  58#define SIGSYS          31
  59#define SIGUNUSED       31
  60
  61/* These should not be considered constants from userland.  */
  62#define SIGRTMIN        32
  63#define SIGRTMAX        _NSIG
  64
  65/*
  66 * SA_FLAGS values:
  67 *
  68 * SA_ONSTACK indicates that a registered stack_t will be used.
  69 * SA_RESTART flag to get restarting signals (which were the default long ago)
  70 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  71 * SA_RESETHAND clears the handler when the signal is delivered.
  72 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  73 * SA_NODEFER prevents the current signal from being masked in the handler.
  74 *
  75 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  76 * Unix names RESETHAND and NODEFER respectively.
  77 */
  78#define SA_NOCLDSTOP    0x00000001u
  79#define SA_NOCLDWAIT    0x00000002u
  80#define SA_SIGINFO      0x00000004u
  81#define SA_ONSTACK      0x08000000u
  82#define SA_RESTART      0x10000000u
  83#define SA_NODEFER      0x40000000u
  84#define SA_RESETHAND    0x80000000u
  85
  86#define SA_NOMASK       SA_NODEFER
  87#define SA_ONESHOT      SA_RESETHAND
  88
  89#define SA_RESTORER     0x04000000
  90
  91#define MINSIGSTKSZ     2048
  92#define SIGSTKSZ        8192
  93
  94#include <asm-generic/signal-defs.h>
  95
  96#ifndef __ASSEMBLY__
  97
  98
  99# ifndef __KERNEL__
 100/* Here we must cater to libcs that poke about in kernel headers.  */
 101#ifdef __i386__
 102
 103struct sigaction {
 104        union {
 105          __sighandler_t _sa_handler;
 106          void (*_sa_sigaction)(int, struct siginfo *, void *);
 107        } _u;
 108        sigset_t sa_mask;
 109        unsigned long sa_flags;
 110        void (*sa_restorer)(void);
 111};
 112
 113#define sa_handler      _u._sa_handler
 114#define sa_sigaction    _u._sa_sigaction
 115
 116#else /* __i386__ */
 117
 118struct sigaction {
 119        __sighandler_t sa_handler;
 120        unsigned long sa_flags;
 121        __sigrestore_t sa_restorer;
 122        sigset_t sa_mask;               /* mask last for extensibility */
 123};
 124
 125#endif /* !__i386__ */
 126# endif /* ! __KERNEL__ */
 127
 128typedef struct sigaltstack {
 129        void __user *ss_sp;
 130        int ss_flags;
 131        size_t ss_size;
 132} stack_t;
 133
 134#endif /* __ASSEMBLY__ */
 135
 136#endif /* _UAPI_ASM_X86_SIGNAL_H */
 137