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
6 * Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
7 * Copyright (C) 1999 Silicon Graphics, Inc.
12 #include <linux/config.h>
13 #include <linux/types.h>
16 #define _NSIG_BPW (sizeof(unsigned long) * 8)
17 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
20 unsigned long sig[_NSIG_WORDS];
23 typedef unsigned long old_sigset_t; /* at least 32 bits */
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). */
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). */
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). */
60 /* These should not be considered constants from userland. */
62 #define SIGRTMAX _NSIG
67 * SA_ONSTACK indicates that a registered stack_t will be used.
68 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
69 * SA_RESTART flag to get restarting signals (which were the default long ago)
70 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
71 * SA_RESETHAND clears the handler when the signal is delivered.
72 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
73 * SA_NODEFER prevents the current signal from being masked in the handler.
75 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
76 * Unix names RESETHAND and NODEFER respectively.
78 #define SA_ONSTACK 0x08000000
79 #define SA_RESETHAND 0x80000000
80 #define SA_RESTART 0x10000000
81 #define SA_SIGINFO 0x00000008
82 #define SA_NODEFER 0x40000000
83 #define SA_NOCLDWAIT 0x00010000
84 #define SA_NOCLDSTOP 0x00000001
86 #define SA_NOMASK SA_NODEFER
87 #define SA_ONESHOT SA_RESETHAND
88 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
90 #define SA_RESTORER 0x04000000 /* Only for o32 */
93 * sigaltstack controls
98 #define MINSIGSTKSZ 2048
101 #define SIG_BLOCK 1 /* for blocking signals */
102 #define SIG_UNBLOCK 2 /* for unblocking signals */
103 #define SIG_SETMASK 3 /* for setting the signal mask */
104 #define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility:
105 set only the low 32 bit of the sigset. */
106 #include <asm-generic/signal.h>
109 unsigned int sa_flags;
110 __sighandler_t sa_handler;
116 #ifdef CONFIG_BINFMT_IRIX
117 void (*sa_restorer)(void);
121 /* IRIX compatible stack_t */
122 typedef struct sigaltstack {
129 #include <asm/sigcontext.h>
132 * The following break codes are or were in use for specific purposes in
133 * other MIPS operating systems. Linux/MIPS doesn't use all of them. The
134 * unused ones are here as placeholders; we might encounter them in
135 * non-Linux/MIPS object files or make use of them in the future.
137 #define BRK_USERBP 0 /* User bp (used by debuggers) */
138 #define BRK_KERNELBP 1 /* Break in the kernel */
139 #define BRK_ABORT 2 /* Sometimes used by abort(3) to SIGIOT */
140 #define BRK_BD_TAKEN 3 /* For bd slot emulation - not implemented */
141 #define BRK_BD_NOTTAKEN 4 /* For bd slot emulation - not implemented */
142 #define BRK_SSTEPBP 5 /* User bp (used by debuggers) */
143 #define BRK_OVERFLOW 6 /* Overflow check */
144 #define BRK_DIVZERO 7 /* Divide by zero check */
145 #define BRK_RANGE 8 /* Range error check */
146 #define BRK_STACKOVERFLOW 9 /* For Ada stackchecking */
147 #define BRK_NORLD 10 /* No rld found - not used by Linux/MIPS */
148 #define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */
149 #define BRK_MULOVF 1023 /* Multiply overflow */
150 #define BRK_BUG 512 /* Used by BUG() */
152 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
154 #endif /* __KERNEL__ */
156 #endif /* _ASM_SIGNAL_H */