1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
179 lines
6.0 KiB
C
179 lines
6.0 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
|
|
* Copyright (C) 1999 Silicon Graphics, Inc.
|
|
*/
|
|
#ifndef _ASM_SIGNAL_H
|
|
#define _ASM_SIGNAL_H
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/types.h>
|
|
|
|
#define _NSIG 128
|
|
#define _NSIG_BPW (sizeof(unsigned long) * 8)
|
|
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
|
|
|
|
typedef struct {
|
|
unsigned long sig[_NSIG_WORDS];
|
|
} sigset_t;
|
|
|
|
typedef unsigned long old_sigset_t; /* at least 32 bits */
|
|
|
|
#define SIGHUP 1 /* Hangup (POSIX). */
|
|
#define SIGINT 2 /* Interrupt (ANSI). */
|
|
#define SIGQUIT 3 /* Quit (POSIX). */
|
|
#define SIGILL 4 /* Illegal instruction (ANSI). */
|
|
#define SIGTRAP 5 /* Trace trap (POSIX). */
|
|
#define SIGIOT 6 /* IOT trap (4.2 BSD). */
|
|
#define SIGABRT SIGIOT /* Abort (ANSI). */
|
|
#define SIGEMT 7
|
|
#define SIGFPE 8 /* Floating-point exception (ANSI). */
|
|
#define SIGKILL 9 /* Kill, unblockable (POSIX). */
|
|
#define SIGBUS 10 /* BUS error (4.2 BSD). */
|
|
#define SIGSEGV 11 /* Segmentation violation (ANSI). */
|
|
#define SIGSYS 12
|
|
#define SIGPIPE 13 /* Broken pipe (POSIX). */
|
|
#define SIGALRM 14 /* Alarm clock (POSIX). */
|
|
#define SIGTERM 15 /* Termination (ANSI). */
|
|
#define SIGUSR1 16 /* User-defined signal 1 (POSIX). */
|
|
#define SIGUSR2 17 /* User-defined signal 2 (POSIX). */
|
|
#define SIGCHLD 18 /* Child status has changed (POSIX). */
|
|
#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */
|
|
#define SIGPWR 19 /* Power failure restart (System V). */
|
|
#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */
|
|
#define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */
|
|
#define SIGIO 22 /* I/O now possible (4.2 BSD). */
|
|
#define SIGPOLL SIGIO /* Pollable event occurred (System V). */
|
|
#define SIGSTOP 23 /* Stop, unblockable (POSIX). */
|
|
#define SIGTSTP 24 /* Keyboard stop (POSIX). */
|
|
#define SIGCONT 25 /* Continue (POSIX). */
|
|
#define SIGTTIN 26 /* Background read from tty (POSIX). */
|
|
#define SIGTTOU 27 /* Background write to tty (POSIX). */
|
|
#define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */
|
|
#define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */
|
|
#define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */
|
|
#define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */
|
|
|
|
/* These should not be considered constants from userland. */
|
|
#define SIGRTMIN 32
|
|
#define SIGRTMAX _NSIG
|
|
|
|
/*
|
|
* SA_FLAGS values:
|
|
*
|
|
* SA_ONSTACK indicates that a registered stack_t will be used.
|
|
* SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
|
|
* SA_RESTART flag to get restarting signals (which were the default long ago)
|
|
* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
|
|
* SA_RESETHAND clears the handler when the signal is delivered.
|
|
* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
|
|
* SA_NODEFER prevents the current signal from being masked in the handler.
|
|
*
|
|
* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
|
|
* Unix names RESETHAND and NODEFER respectively.
|
|
*/
|
|
#define SA_ONSTACK 0x08000000
|
|
#define SA_RESETHAND 0x80000000
|
|
#define SA_RESTART 0x10000000
|
|
#define SA_SIGINFO 0x00000008
|
|
#define SA_NODEFER 0x40000000
|
|
#define SA_NOCLDWAIT 0x00010000
|
|
#define SA_NOCLDSTOP 0x00000001
|
|
|
|
#define SA_NOMASK SA_NODEFER
|
|
#define SA_ONESHOT SA_RESETHAND
|
|
#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
|
|
|
|
#define SA_RESTORER 0x04000000 /* Only for o32 */
|
|
|
|
/*
|
|
* sigaltstack controls
|
|
*/
|
|
#define SS_ONSTACK 1
|
|
#define SS_DISABLE 2
|
|
|
|
#define MINSIGSTKSZ 2048
|
|
#define SIGSTKSZ 8192
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/*
|
|
* These values of sa_flags are used only by the kernel as part of the
|
|
* irq handling routines.
|
|
*
|
|
* SA_INTERRUPT is also used by the irq handling routines.
|
|
* SA_SHIRQ flag is for shared interrupt support on PCI and EISA.
|
|
*/
|
|
#define SA_PROBE SA_ONESHOT
|
|
#define SA_SAMPLE_RANDOM SA_RESTART
|
|
#define SA_SHIRQ 0x02000000
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#define SIG_BLOCK 1 /* for blocking signals */
|
|
#define SIG_UNBLOCK 2 /* for unblocking signals */
|
|
#define SIG_SETMASK 3 /* for setting the signal mask */
|
|
#define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility:
|
|
set only the low 32 bit of the sigset. */
|
|
|
|
/* Type of a signal handler. */
|
|
typedef void (*__sighandler_t)(int);
|
|
|
|
/* Fake signal functions */
|
|
#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
|
|
#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
|
|
#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
|
|
|
|
struct sigaction {
|
|
unsigned int sa_flags;
|
|
__sighandler_t sa_handler;
|
|
sigset_t sa_mask;
|
|
};
|
|
|
|
struct k_sigaction {
|
|
struct sigaction sa;
|
|
#ifdef CONFIG_BINFMT_IRIX
|
|
void (*sa_restorer)(void);
|
|
#endif
|
|
};
|
|
|
|
/* IRIX compatible stack_t */
|
|
typedef struct sigaltstack {
|
|
void *ss_sp;
|
|
size_t ss_size;
|
|
int ss_flags;
|
|
} stack_t;
|
|
|
|
#ifdef __KERNEL__
|
|
#include <asm/sigcontext.h>
|
|
|
|
/*
|
|
* The following break codes are or were in use for specific purposes in
|
|
* other MIPS operating systems. Linux/MIPS doesn't use all of them. The
|
|
* unused ones are here as placeholders; we might encounter them in
|
|
* non-Linux/MIPS object files or make use of them in the future.
|
|
*/
|
|
#define BRK_USERBP 0 /* User bp (used by debuggers) */
|
|
#define BRK_KERNELBP 1 /* Break in the kernel */
|
|
#define BRK_ABORT 2 /* Sometimes used by abort(3) to SIGIOT */
|
|
#define BRK_BD_TAKEN 3 /* For bd slot emulation - not implemented */
|
|
#define BRK_BD_NOTTAKEN 4 /* For bd slot emulation - not implemented */
|
|
#define BRK_SSTEPBP 5 /* User bp (used by debuggers) */
|
|
#define BRK_OVERFLOW 6 /* Overflow check */
|
|
#define BRK_DIVZERO 7 /* Divide by zero check */
|
|
#define BRK_RANGE 8 /* Range error check */
|
|
#define BRK_STACKOVERFLOW 9 /* For Ada stackchecking */
|
|
#define BRK_NORLD 10 /* No rld found - not used by Linux/MIPS */
|
|
#define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */
|
|
#define BRK_MULOVF 1023 /* Multiply overflow */
|
|
#define BRK_BUG 512 /* Used by BUG() */
|
|
|
|
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_SIGNAL_H */
|