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TOMOYO Linux Cross Reference
Linux/arch/mips/include/uapi/asm/signal.h

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  1 /*
  2  * This file is subject to the terms and conditions of the GNU General Public
  3  * License.  See the file "COPYING" in the main directory of this archive
  4  * for more details.
  5  *
  6  * Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
  7  * Copyright (C) 1999 Silicon Graphics, Inc.
  8  */
  9 #ifndef _UAPI_ASM_SIGNAL_H
 10 #define _UAPI_ASM_SIGNAL_H
 11 
 12 #include <linux/types.h>
 13 
 14 #define _NSIG           128
 15 #define _NSIG_BPW       (sizeof(unsigned long) * 8)
 16 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
 17 
 18 typedef struct {
 19         unsigned long sig[_NSIG_WORDS];
 20 } sigset_t;
 21 
 22 typedef unsigned long old_sigset_t;             /* at least 32 bits */
 23 
 24 #define SIGHUP           1      /* Hangup (POSIX).  */
 25 #define SIGINT           2      /* Interrupt (ANSI).  */
 26 #define SIGQUIT          3      /* Quit (POSIX).  */
 27 #define SIGILL           4      /* Illegal instruction (ANSI).  */
 28 #define SIGTRAP          5      /* Trace trap (POSIX).  */
 29 #define SIGIOT           6      /* IOT trap (4.2 BSD).  */
 30 #define SIGABRT          SIGIOT /* Abort (ANSI).  */
 31 #define SIGEMT           7
 32 #define SIGFPE           8      /* Floating-point exception (ANSI).  */
 33 #define SIGKILL          9      /* Kill, unblockable (POSIX).  */
 34 #define SIGBUS          10      /* BUS error (4.2 BSD).  */
 35 #define SIGSEGV         11      /* Segmentation violation (ANSI).  */
 36 #define SIGSYS          12
 37 #define SIGPIPE         13      /* Broken pipe (POSIX).  */
 38 #define SIGALRM         14      /* Alarm clock (POSIX).  */
 39 #define SIGTERM         15      /* Termination (ANSI).  */
 40 #define SIGUSR1         16      /* User-defined signal 1 (POSIX).  */
 41 #define SIGUSR2         17      /* User-defined signal 2 (POSIX).  */
 42 #define SIGCHLD         18      /* Child status has changed (POSIX).  */
 43 #define SIGCLD          SIGCHLD /* Same as SIGCHLD (System V).  */
 44 #define SIGPWR          19      /* Power failure restart (System V).  */
 45 #define SIGWINCH        20      /* Window size change (4.3 BSD, Sun).  */
 46 #define SIGURG          21      /* Urgent condition on socket (4.2 BSD).  */
 47 #define SIGIO           22      /* I/O now possible (4.2 BSD).  */
 48 #define SIGPOLL         SIGIO   /* Pollable event occurred (System V).  */
 49 #define SIGSTOP         23      /* Stop, unblockable (POSIX).  */
 50 #define SIGTSTP         24      /* Keyboard stop (POSIX).  */
 51 #define SIGCONT         25      /* Continue (POSIX).  */
 52 #define SIGTTIN         26      /* Background read from tty (POSIX).  */
 53 #define SIGTTOU         27      /* Background write to tty (POSIX).  */
 54 #define SIGVTALRM       28      /* Virtual alarm clock (4.2 BSD).  */
 55 #define SIGPROF         29      /* Profiling alarm clock (4.2 BSD).  */
 56 #define SIGXCPU         30      /* CPU limit exceeded (4.2 BSD).  */
 57 #define SIGXFSZ         31      /* File size limit exceeded (4.2 BSD).  */
 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  * SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
 77  * supported its use and no libc was using it, so the entire sa-restorer
 78  * functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48
 79  * retaining only the SA_RESTORER definition as a reminder to avoid
 80  * accidental reuse of the mask bit.
 81  */
 82 #define SA_ONSTACK      0x08000000
 83 #define SA_RESETHAND    0x80000000
 84 #define SA_RESTART      0x10000000
 85 #define SA_SIGINFO      0x00000008
 86 #define SA_NODEFER      0x40000000
 87 #define SA_NOCLDWAIT    0x00010000
 88 #define SA_NOCLDSTOP    0x00000001
 89 
 90 #define SA_NOMASK       SA_NODEFER
 91 #define SA_ONESHOT      SA_RESETHAND
 92 
 93 #define MINSIGSTKSZ    2048
 94 #define SIGSTKSZ       8192
 95 
 96 
 97 #define SIG_BLOCK       1       /* for blocking signals */
 98 #define SIG_UNBLOCK     2       /* for unblocking signals */
 99 #define SIG_SETMASK     3       /* for setting the signal mask */
100 
101 #include <asm-generic/signal-defs.h>
102 
103 #ifndef __KERNEL__
104 struct sigaction {
105         unsigned int    sa_flags;
106         __sighandler_t  sa_handler;
107         sigset_t        sa_mask;
108 };
109 #endif
110 
111 /* IRIX compatible stack_t  */
112 typedef struct sigaltstack {
113         void __user *ss_sp;
114         size_t ss_size;
115         int ss_flags;
116 } stack_t;
117 
118 
119 #endif /* _UAPI_ASM_SIGNAL_H */
120 

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