1#ifndef _ASM_IA64_SIGNAL_H 2#define _ASM_IA64_SIGNAL_H 3 4/* 5 * Copyright (C) 1998-2001 Hewlett-Packard Co 6 * David Mosberger-Tang <davidm@hpl.hp.com> 7 * 8 * Unfortunately, this file is being included by bits/signal.h in 9 * glibc-2.x. Hence the #ifdef __KERNEL__ ugliness. 10 */ 11 12#define SIGHUP 1 13#define SIGINT 2 14#define SIGQUIT 3 15#define SIGILL 4 16#define SIGTRAP 5 17#define SIGABRT 6 18#define SIGIOT 6 19#define SIGBUS 7 20#define SIGFPE 8 21#define SIGKILL 9 22#define SIGUSR1 10 23#define SIGSEGV 11 24#define SIGUSR2 12 25#define SIGPIPE 13 26#define SIGALRM 14 27#define SIGTERM 15 28#define SIGSTKFLT 16 29#define SIGCHLD 17 30#define SIGCONT 18 31#define SIGSTOP 19 32#define SIGTSTP 20 33#define SIGTTIN 21 34#define SIGTTOU 22 35#define SIGURG 23 36#define SIGXCPU 24 37#define SIGXFSZ 25 38#define SIGVTALRM 26 39#define SIGPROF 27 40#define SIGWINCH 28 41#define SIGIO 29 42#define SIGPOLL SIGIO 43/* 44#define SIGLOST 29 45*/ 46#define SIGPWR 30 47#define SIGSYS 31 48/* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */ 49#define SIGUNUSED 31 50 51/* These should not be considered constants from userland. */ 52#define SIGRTMIN 32 53#define SIGRTMAX (_NSIG-1) 54 55/* 56 * SA_FLAGS values: 57 * 58 * SA_ONSTACK indicates that a registered stack_t will be used. 59 * SA_INTERRUPT is a no-op, but left due to historical reasons. 60 * SA_RESTART flag to get restarting signals (which were the default long ago) 61 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 62 * SA_RESETHAND clears the handler when the signal is delivered. 63 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 64 * SA_NODEFER prevents the current signal from being masked in the handler. 65 * 66 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 67 * Unix names RESETHAND and NODEFER respectively. 68 */ 69#define SA_NOCLDSTOP 0x00000001 70#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ 71#define SA_SIGINFO 0x00000004 72#define SA_ONSTACK 0x08000000 73#define SA_RESTART 0x10000000 74#define SA_NODEFER 0x40000000 75#define SA_RESETHAND 0x80000000 76 77#define SA_NOMASK SA_NODEFER 78#define SA_ONESHOT SA_RESETHAND 79#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */ 80 81#define SA_RESTORER 0x04000000 82 83/* 84 * sigaltstack controls 85 */ 86#define SS_ONSTACK 1 87#define SS_DISABLE 2 88 89/* 90 * The minimum stack size needs to be fairly large because we want to 91 * be sure that an app compiled for today's CPUs will continue to run 92 * on all future CPU models. The CPU model matters because the signal 93 * frame needs to have space for the complete machine state, including 94 * all physical stacked registers. The number of physical stacked 95 * registers is CPU model dependent, but given that the width of 96 * ar.rsc.loadrs is 14 bits, we can assume that they'll never take up 97 * more than 16KB of space. 98 */ 99#define MINSIGSTKSZ 131027 /* min. stack size for sigaltstack() */ 100#define SIGSTKSZ 262144 /* default stack size for sigaltstack() */ 101 102#ifdef __KERNEL__ 103 104#define _NSIG 64 105#define _NSIG_BPW 64 106#define _NSIG_WORDS (_NSIG / _NSIG_BPW) 107 108/* 109 * These values of sa_flags are used only by the kernel as part of the 110 * irq handling routines. 111 * 112 * SA_INTERRUPT is also used by the irq handling routines. 113 * SA_SHIRQ is for shared interrupt support on PCI and EISA. 114 */ 115#define SA_PROBE SA_ONESHOT 116#define SA_SAMPLE_RANDOM SA_RESTART 117#define SA_SHIRQ 0x04000000 118#define SA_PERCPU_IRQ 0x02000000 119 120#endif /* __KERNEL__ */ 121 122#define SIG_BLOCK 0 /* for blocking signals */ 123#define SIG_UNBLOCK 1 /* for unblocking signals */ 124#define SIG_SETMASK 2 /* for setting the signal mask */ 125 126#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ 127#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ 128#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ 129 130# ifndef __ASSEMBLY__ 131 132# include <linux/types.h> 133 134/* Avoid too many header ordering problems. */ 135struct siginfo; 136 137/* Type of a signal handler. */ 138typedef void (*__sighandler_t)(int); 139 140typedef struct sigaltstack { 141 void *ss_sp; 142 int ss_flags; 143 size_t ss_size; 144} stack_t; 145 146#ifdef __KERNEL__ 147 148/* Most things should be clean enough to redefine this at will, if care 149 is taken to make libc match. */ 150 151typedef unsigned long old_sigset_t; 152 153typedef struct { 154 unsigned long sig[_NSIG_WORDS]; 155} sigset_t; 156 157struct sigaction { 158 __sighandler_t sa_handler; 159 unsigned long sa_flags; 160 sigset_t sa_mask; /* mask last for extensibility */ 161}; 162 163struct k_sigaction { 164 struct sigaction sa; 165}; 166 167# include <asm/sigcontext.h> 168 169#endif /* __KERNEL__ */ 170 171# endif /* !__ASSEMBLY__ */ 172#endif /* _ASM_IA64_SIGNAL_H */ 173