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

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _UAPI_ASMARM_SIGNAL_H
   3#define _UAPI_ASMARM_SIGNAL_H
   4
   5#include <linux/types.h>
   6
   7/* Avoid too many header ordering problems.  */
   8struct siginfo;
   9
  10#ifndef __KERNEL__
  11/* Here we must cater to libcs that poke about in kernel headers.  */
  12
  13#define NSIG            32
  14typedef unsigned long sigset_t;
  15
  16#endif /* __KERNEL__ */
  17
  18#define SIGHUP           1
  19#define SIGINT           2
  20#define SIGQUIT          3
  21#define SIGILL           4
  22#define SIGTRAP          5
  23#define SIGABRT          6
  24#define SIGIOT           6
  25#define SIGBUS           7
  26#define SIGFPE           8
  27#define SIGKILL          9
  28#define SIGUSR1         10
  29#define SIGSEGV         11
  30#define SIGUSR2         12
  31#define SIGPIPE         13
  32#define SIGALRM         14
  33#define SIGTERM         15
  34#define SIGSTKFLT       16
  35#define SIGCHLD         17
  36#define SIGCONT         18
  37#define SIGSTOP         19
  38#define SIGTSTP         20
  39#define SIGTTIN         21
  40#define SIGTTOU         22
  41#define SIGURG          23
  42#define SIGXCPU         24
  43#define SIGXFSZ         25
  44#define SIGVTALRM       26
  45#define SIGPROF         27
  46#define SIGWINCH        28
  47#define SIGIO           29
  48#define SIGPOLL         SIGIO
  49/*
  50#define SIGLOST         29
  51*/
  52#define SIGPWR          30
  53#define SIGSYS          31
  54#define SIGUNUSED       31
  55
  56/* These should not be considered constants from userland.  */
  57#define SIGRTMIN        32
  58#define SIGRTMAX        _NSIG
  59
  60#define SIGSWI          32
  61
  62/*
  63 * SA_FLAGS values:
  64 *
  65 * SA_NOCLDSTOP         flag to turn off SIGCHLD when children stop.
  66 * SA_NOCLDWAIT         flag on SIGCHLD to inhibit zombies.
  67 * SA_SIGINFO           deliver the signal with SIGINFO structs
  68 * SA_THIRTYTWO         delivers the signal in 32-bit mode, even if the task 
  69 *                      is running in 26-bit.
  70 * SA_ONSTACK           allows alternate signal stacks (see sigaltstack(2)).
  71 * SA_RESTART           flag to get restarting signals (which were the default long ago)
  72 * SA_NODEFER           prevents the current signal from being masked in the handler.
  73 * SA_RESETHAND         clears the handler when the signal is delivered.
  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    0x00000001
  79#define SA_NOCLDWAIT    0x00000002
  80#define SA_SIGINFO      0x00000004
  81#define SA_THIRTYTWO    0x02000000
  82#define SA_RESTORER     0x04000000
  83#define SA_ONSTACK      0x08000000
  84#define SA_RESTART      0x10000000
  85#define SA_NODEFER      0x40000000
  86#define SA_RESETHAND    0x80000000
  87
  88#define SA_NOMASK       SA_NODEFER
  89#define SA_ONESHOT      SA_RESETHAND
  90
  91#define MINSIGSTKSZ     2048
  92#define SIGSTKSZ        8192
  93
  94#include <asm-generic/signal-defs.h>
  95
  96#ifndef __KERNEL__
  97/* Here we must cater to libcs that poke about in kernel headers.  */
  98
  99struct sigaction {
 100        union {
 101          __sighandler_t _sa_handler;
 102          void (*_sa_sigaction)(int, struct siginfo *, void *);
 103        } _u;
 104        sigset_t sa_mask;
 105        unsigned long sa_flags;
 106        void (*sa_restorer)(void);
 107};
 108
 109#define sa_handler      _u._sa_handler
 110#define sa_sigaction    _u._sa_sigaction
 111
 112#endif /* __KERNEL__ */
 113
 114typedef struct sigaltstack {
 115        void __user *ss_sp;
 116        int ss_flags;
 117        size_t ss_size;
 118} stack_t;
 119
 120
 121#endif /* _UAPI_ASMARM_SIGNAL_H */
 122