/* * Linux/MIPS specific definitions for signals. * * 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, 1996 by Ralf Baechle */ #ifndef __ASM_MIPS_SIGNAL_H #include /* Any one of these symbols __need_* means that GNU libc wants us just to define one data type. So don't define the symbols that indicate this file's entire job has been done. */ #if !defined(__need_signums) && !defined(__need_fake_sigfuns) && \ !defined(__need__nsig) #define __ASM_MIPS_SIGNAL_H #endif #ifdef __ASM_MIPS_SIGNAL_H typedef unsigned long sigset_t; #endif /* __ASM_MIPS_SIGNAL_H */ #if !defined (___nsig_defined) && \ (defined (__ASM_MIPS_SIGNAL_H) || defined (__need__nsig)) #define ___nsig_defined #define _NSIG 65 #endif #undef __need__nsig #ifdef __KERNEL__ #define NSIG _NSIG #endif #if !defined (__signums_defined) && \ (defined (__ASM_MIPS_SIGNAL_H) || defined (__need_signums)) #define __signums_defined /* * For 1.3.0 Linux/MIPS changed the signal numbers to be compatible the ABI. */ #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). */ #endif /* need signums */ #undef __need_signums #ifdef __ASM_MIPS_SIGNAL_H /* * sa_flags values: SA_STACK is not currently supported, but will allow the * usage of signal stacks by using the (now obsolete) sa_restorer field in * the sigaction structure as a stack pointer. This is now possible due to * the changes in signal handling. LBT 010493. * 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_SHIRQ flag is for shared interrupt support on PCI and EISA. */ #define SA_STACK 0x1 #define SA_ONSTACK SA_STACK #define SA_RESTART 0x4 #define SA_NOCLDSTOP 0x20000 /* Non ABI signals */ #define SA_INTERRUPT 0x01000000 #define SA_NOMASK 0x02000000 #define SA_ONESHOT 0x04000000 #define SA_SHIRQ 0x08000000 #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. */ #define SA_PROBE SA_ONESHOT #define SA_SAMPLE_RANDOM SA_RESTART #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. */ #ifndef __sighandler_t_defined #define __sighandler_t_defined /* Type of a signal handler. */ typedef void (*__sighandler_t)(int); #endif #endif #if !defined (__fake_sigfuns_defined) && \ (defined (__ASM_MIPS_SIGNAL_H) || defined (__need_fake_sigfuns)) #define __fake_sigfuns_defined /* 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 */ #endif #undef __need_fake_sigfuns #ifdef __ASM_MIPS_SIGNAL_H struct sigaction { unsigned int sa_flags; __sighandler_t sa_handler; sigset_t sa_mask; unsigned int __pad0[3]; /* reserved, keep size constant */ /* Abi says here follows reserved int[2] */ void (*sa_restorer)(void); #if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) /* * For 32 bit code we have to pad struct sigaction to get * constant size for the ABI */ int __pad1[1]; /* reserved */ #endif }; #ifdef __KERNEL__ #include #endif #if defined (__KERNEL__) || defined (__USE_MISC) /* * 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 */ #endif /* defined (__KERNEL__) || defined (__USE_MISC) */ #endif /* defined (__ASM_MIPS_SIGNAL_H) */ #endif /* !defined (__ASM_MIPS_SIGNAL_H) */