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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * This file is subject to the terms and conditions of the GNU General Public
   4  * License.  See the file "COPYING" in the main directory of this archive
   5  * for more details.
   6  *
   7  * Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
   8  * Copyright (C) 1999 Silicon Graphics, Inc.
   9  */
  10 #ifndef _UAPI_ASM_SIGNAL_H
  11 #define _UAPI_ASM_SIGNAL_H
  12
  13 #include <linux/types.h>
  14
  15 #define _NSIG           128
  16 #define _NSIG_BPW       (sizeof(unsigned long) * 8)
  17 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  18
  19 typedef struct {
  20         unsigned long sig[_NSIG_WORDS];
  21 } sigset_t;
  22
  23 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  24
  25 #define SIGHUP           1      /* Hangup (POSIX).  */
  26 #define SIGINT           2      /* Interrupt (ANSI).  */
  27 #define SIGQUIT          3      /* Quit (POSIX).  */
  28 #define SIGILL           4      /* Illegal instruction (ANSI).  */
  29 #define SIGTRAP          5      /* Trace trap (POSIX).  */
  30 #define SIGIOT           6      /* IOT trap (4.2 BSD).  */
  31 #define SIGABRT          SIGIOT /* Abort (ANSI).  */
  32 #define SIGEMT           7
  33 #define SIGFPE           8      /* Floating-point exception (ANSI).  */
  34 #define SIGKILL          9      /* Kill, unblockable (POSIX).  */
  35 #define SIGBUS          10      /* BUS error (4.2 BSD).  */
  36 #define SIGSEGV         11      /* Segmentation violation (ANSI).  */
  37 #define SIGSYS          12
  38 #define SIGPIPE         13      /* Broken pipe (POSIX).  */
  39 #define SIGALRM         14      /* Alarm clock (POSIX).  */
  40 #define SIGTERM         15      /* Termination (ANSI).  */
  41 #define SIGUSR1         16      /* User-defined signal 1 (POSIX).  */
  42 #define SIGUSR2         17      /* User-defined signal 2 (POSIX).  */
  43 #define SIGCHLD         18      /* Child status has changed (POSIX).  */
  44 #define SIGCLD          SIGCHLD /* Same as SIGCHLD (System V).  */
  45 #define SIGPWR          19      /* Power failure restart (System V).  */
  46 #define SIGWINCH        20      /* Window size change (4.3 BSD, Sun).  */
  47 #define SIGURG          21      /* Urgent condition on socket (4.2 BSD).  */
  48 #define SIGIO           22      /* I/O now possible (4.2 BSD).  */
  49 #define SIGPOLL         SIGIO   /* Pollable event occurred (System V).  */
  50 #define SIGSTOP         23      /* Stop, unblockable (POSIX).  */
  51 #define SIGTSTP         24      /* Keyboard stop (POSIX).  */
  52 #define SIGCONT         25      /* Continue (POSIX).  */
  53 #define SIGTTIN         26      /* Background read from tty (POSIX).  */
  54 #define SIGTTOU         27      /* Background write to tty (POSIX).  */
  55 #define SIGVTALRM       28      /* Virtual alarm clock (4.2 BSD).  */
  56 #define SIGPROF         29      /* Profiling alarm clock (4.2 BSD).  */
  57 #define SIGXCPU         30      /* CPU limit exceeded (4.2 BSD).  */
  58 #define SIGXFSZ         31      /* File size limit exceeded (4.2 BSD).  */
  59
  60 /* These should not be considered constants from userland.  */
  61 #define SIGRTMIN        32
  62 #define SIGRTMAX        _NSIG
  63
  64 /*
  65  * SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
  66  * supported its use and no libc was using it, so the entire sa-restorer
  67  * functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48
  68  * retaining only the SA_RESTORER definition as a reminder to avoid
  69  * accidental reuse of the mask bit.
  70  */
  71 #define SA_ONSTACK      0x08000000
  72 #define SA_RESETHAND    0x80000000
  73 #define SA_RESTART      0x10000000
  74 #define SA_SIGINFO      0x00000008
  75 #define SA_NODEFER      0x40000000
  76 #define SA_NOCLDWAIT    0x00010000
  77 #define SA_NOCLDSTOP    0x00000001
  78
  79 #define SA_NOMASK       SA_NODEFER
  80 #define SA_ONESHOT      SA_RESETHAND
  81
  82 #define MINSIGSTKSZ    2048
  83 #define SIGSTKSZ       8192
  84
  85
  86 #define SIG_BLOCK       1       /* for blocking signals */
  87 #define SIG_UNBLOCK     2       /* for unblocking signals */
  88 #define SIG_SETMASK     3       /* for setting the signal mask */
  89
  90 #include <asm-generic/signal-defs.h>
  91
  92 #ifndef __KERNEL__
  93 struct sigaction {
  94         unsigned int    sa_flags;
  95         __sighandler_t  sa_handler;
  96         sigset_t        sa_mask;
  97 };
  98 #endif
  99
 100 /* IRIX compatible stack_t  */
 101 typedef struct sigaltstack {
 102         void __user *ss_sp;
 103         __kernel_size_t ss_size;
 104         int ss_flags;
 105 } stack_t;
 106
 107
 108 #endif /* _UAPI_ASM_SIGNAL_H */