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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_ASMAXP_SIGNAL_H
   3 #define _UAPI_ASMAXP_SIGNAL_H
   4
   5 #include <linux/types.h>
   6
   7 /* Avoid too many header ordering problems.  */
   8 struct siginfo;
   9
  10 #ifndef __KERNEL__
  11 /* Here we must cater to libcs that poke about in kernel headers.  */
  12
  13 #define NSIG            32
  14 typedef unsigned long sigset_t;
  15
  16 #endif /* __KERNEL__ */
  17
  18
  19 /*
  20  * Linux/AXP has different signal numbers that Linux/i386: I'm trying
  21  * to make it OSF/1 binary compatible, at least for normal binaries.
  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 SIGEMT           7
  30 #define SIGFPE           8
  31 #define SIGKILL          9
  32 #define SIGBUS          10
  33 #define SIGSEGV         11
  34 #define SIGSYS          12
  35 #define SIGPIPE         13
  36 #define SIGALRM         14
  37 #define SIGTERM         15
  38 #define SIGURG          16
  39 #define SIGSTOP         17
  40 #define SIGTSTP         18
  41 #define SIGCONT         19
  42 #define SIGCHLD         20
  43 #define SIGTTIN         21
  44 #define SIGTTOU         22
  45 #define SIGIO           23
  46 #define SIGXCPU         24
  47 #define SIGXFSZ         25
  48 #define SIGVTALRM       26
  49 #define SIGPROF         27
  50 #define SIGWINCH        28
  51 #define SIGINFO         29
  52 #define SIGUSR1         30
  53 #define SIGUSR2         31
  54
  55 #define SIGPOLL SIGIO
  56 #define SIGPWR  SIGINFO
  57 #define SIGIOT  SIGABRT
  58
  59 /* These should not be considered constants from userland.  */
  60 #define SIGRTMIN        32
  61 #define SIGRTMAX        _NSIG
  62
  63 /*
  64  * SA_FLAGS values:
  65  *
  66  * SA_ONSTACK indicates that a registered stack_t will be used.
  67  * SA_RESTART flag to get restarting signals (which were the default long ago)
  68  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  69  * SA_RESETHAND clears the handler when the signal is delivered.
  70  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  71  * SA_NODEFER prevents the current signal from being masked in the handler.
  72  *
  73  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  74  * Unix names RESETHAND and NODEFER respectively.
  75  */
  76
  77 #define SA_ONSTACK      0x00000001
  78 #define SA_RESTART      0x00000002
  79 #define SA_NOCLDSTOP    0x00000004
  80 #define SA_NODEFER      0x00000008
  81 #define SA_RESETHAND    0x00000010
  82 #define SA_NOCLDWAIT    0x00000020
  83 #define SA_SIGINFO      0x00000040
  84
  85 #define SA_ONESHOT      SA_RESETHAND
  86 #define SA_NOMASK       SA_NODEFER
  87
  88 #define MINSIGSTKSZ     4096
  89 #define SIGSTKSZ        16384
  90
  91 #define SIG_BLOCK          1    /* for blocking signals */
  92 #define SIG_UNBLOCK        2    /* for unblocking signals */
  93 #define SIG_SETMASK        3    /* for setting the signal mask */
  94
  95 #include <asm-generic/signal-defs.h>
  96
  97 #ifndef __KERNEL__
  98 /* Here we must cater to libcs that poke about in kernel headers.  */
  99
 100 struct sigaction {
 101         union {
 102           __sighandler_t        _sa_handler;
 103           void (*_sa_sigaction)(int, struct siginfo *, void *);
 104         } _u;
 105         sigset_t        sa_mask;
 106         int             sa_flags;
 107 };
 108
 109 #define sa_handler      _u._sa_handler
 110 #define sa_sigaction    _u._sa_sigaction
 111
 112 #endif /* __KERNEL__ */
 113
 114 typedef struct sigaltstack {
 115         void __user *ss_sp;
 116         int ss_flags;
 117         size_t ss_size;
 118 } stack_t;
 119
 120 /* sigstack(2) is deprecated, and will be withdrawn in a future version
 121    of the X/Open CAE Specification.  Use sigaltstack instead.  It is only
 122    implemented here for OSF/1 compatibility.  */
 123
 124 struct sigstack {
 125         void __user *ss_sp;
 126         int ss_onstack;
 127 };
 128
 129
 130 #endif /* _UAPI_ASMAXP_SIGNAL_H */