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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * include/asm-xtensa/signal.h
   4  *
   5  * Swiped from SH.
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  *
  11  * Copyright (C) 2001 - 2005 Tensilica Inc.
  12  */
  13
  14 #ifndef _UAPI_XTENSA_SIGNAL_H
  15 #define _UAPI_XTENSA_SIGNAL_H
  16
  17
  18 #define _NSIG           64
  19 #define _NSIG_BPW       32
  20 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  21
  22 #ifndef __ASSEMBLY__
  23
  24 #include <linux/types.h>
  25
  26 /* Avoid too many header ordering problems.  */
  27 struct siginfo;
  28 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  29 typedef struct {
  30         unsigned long sig[_NSIG_WORDS];
  31 } sigset_t;
  32
  33 #endif
  34
  35 #define SIGHUP           1
  36 #define SIGINT           2
  37 #define SIGQUIT          3
  38 #define SIGILL           4
  39 #define SIGTRAP          5
  40 #define SIGABRT          6
  41 #define SIGIOT           6
  42 #define SIGBUS           7
  43 #define SIGFPE           8
  44 #define SIGKILL          9
  45 #define SIGUSR1         10
  46 #define SIGSEGV         11
  47 #define SIGUSR2         12
  48 #define SIGPIPE         13
  49 #define SIGALRM         14
  50 #define SIGTERM         15
  51 #define SIGSTKFLT       16
  52 #define SIGCHLD         17
  53 #define SIGCONT         18
  54 #define SIGSTOP         19
  55 #define SIGTSTP         20
  56 #define SIGTTIN         21
  57 #define SIGTTOU         22
  58 #define SIGURG          23
  59 #define SIGXCPU         24
  60 #define SIGXFSZ         25
  61 #define SIGVTALRM       26
  62 #define SIGPROF         27
  63 #define SIGWINCH        28
  64 #define SIGIO           29
  65 #define SIGPOLL         SIGIO
  66 /* #define SIGLOST              29 */
  67 #define SIGPWR          30
  68 #define SIGSYS          31
  69 #define SIGUNUSED       31
  70
  71 /* These should not be considered constants from userland.  */
  72 #define SIGRTMIN        32
  73 #define SIGRTMAX        (_NSIG-1)
  74
  75 /*
  76  * SA_FLAGS values:
  77  *
  78  * SA_ONSTACK indicates that a registered stack_t will be used.
  79  * SA_RESTART flag to get restarting signals (which were the default long ago)
  80  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  81  * SA_RESETHAND clears the handler when the signal is delivered.
  82  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  83  * SA_NODEFER prevents the current signal from being masked in the handler.
  84  *
  85  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  86  * Unix names RESETHAND and NODEFER respectively.
  87  */
  88 #define SA_NOCLDSTOP    0x00000001
  89 #define SA_NOCLDWAIT    0x00000002 /* not supported yet */
  90 #define SA_SIGINFO      0x00000004
  91 #define SA_ONSTACK      0x08000000
  92 #define SA_RESTART      0x10000000
  93 #define SA_NODEFER      0x40000000
  94 #define SA_RESETHAND    0x80000000
  95
  96 #define SA_NOMASK       SA_NODEFER
  97 #define SA_ONESHOT      SA_RESETHAND
  98
  99 #define SA_RESTORER     0x04000000
 100
 101 #define MINSIGSTKSZ     2048
 102 #define SIGSTKSZ        8192
 103
 104 #ifndef __ASSEMBLY__
 105
 106 #include <asm-generic/signal-defs.h>
 107
 108 #ifndef __KERNEL__
 109
 110 /* Here we must cater to libcs that poke about in kernel headers.  */
 111
 112 struct sigaction {
 113         union {
 114           __sighandler_t _sa_handler;
 115           void (*_sa_sigaction)(int, struct siginfo *, void *);
 116         } _u;
 117         sigset_t sa_mask;
 118         unsigned long sa_flags;
 119         void (*sa_restorer)(void);
 120 };
 121
 122 #define sa_handler      _u._sa_handler
 123 #define sa_sigaction    _u._sa_sigaction
 124
 125 #endif /* __KERNEL__ */
 126
 127 typedef struct sigaltstack {
 128         void *ss_sp;
 129         int ss_flags;
 130         size_t ss_size;
 131 } stack_t;
 132
 133 #endif  /* __ASSEMBLY__ */
 134 #endif /* _UAPI_XTENSA_SIGNAL_H */