1#ifndef _ASMARM_SIGNAL_H 2#define _ASMARM_SIGNAL_H 3 4#include <linux/types.h> 5 6/* Avoid too many header ordering problems. */ 7struct siginfo; 8 9#ifdef __KERNEL__ 10/* Most things should be clean enough to redefine this at will, if care 11 is taken to make libc match. */ 12 13#define _NSIG 64 14#define _NSIG_BPW 32 15#define _NSIG_WORDS (_NSIG / _NSIG_BPW) 16 17typedef unsigned long old_sigset_t; /* at least 32 bits */ 18 19typedef struct { 20 unsigned long sig[_NSIG_WORDS]; 21} sigset_t; 22 23#else 24/* Here we must cater to libcs that poke about in kernel headers. */ 25 26#define NSIG 32 27typedef unsigned long sigset_t; 28 29#endif /* __KERNEL__ */ 30 31#define SIGHUP 1 32#define SIGINT 2 33#define SIGQUIT 3 34#define SIGILL 4 35#define SIGTRAP 5 36#define SIGABRT 6 37#define SIGIOT 6 38#define SIGBUS 7 39#define SIGFPE 8 40#define SIGKILL 9 41#define SIGUSR1 10 42#define SIGSEGV 11 43#define SIGUSR2 12 44#define SIGPIPE 13 45#define SIGALRM 14 46#define SIGTERM 15 47#define SIGSTKFLT 16 48#define SIGCHLD 17 49#define SIGCONT 18 50#define SIGSTOP 19 51#define SIGTSTP 20 52#define SIGTTIN 21 53#define SIGTTOU 22 54#define SIGURG 23 55#define SIGXCPU 24 56#define SIGXFSZ 25 57#define SIGVTALRM 26 58#define SIGPROF 27 59#define SIGWINCH 28 60#define SIGIO 29 61#define SIGPOLL SIGIO 62/* 63#define SIGLOST 29 64*/ 65#define SIGPWR 30 66#define SIGSYS 31 67#define SIGUNUSED 31 68 69/* These should not be considered constants from userland. */ 70#define SIGRTMIN 32 71#define SIGRTMAX _NSIG 72 73#define SIGSWI 32 74 75/* 76 * SA_FLAGS values: 77 * 78 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 79 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 80 * SA_SIGINFO deliver the signal with SIGINFO structs 81 * SA_THIRTYTWO delivers the signal in 32-bit mode, even if the task 82 * is running in 26-bit. 83 * SA_ONSTACK allows alternate signal stacks (see sigaltstack(2)). 84 * SA_RESTART flag to get restarting signals (which were the default long ago) 85 * SA_NODEFER prevents the current signal from being masked in the handler. 86 * SA_RESETHAND clears the handler when the signal is delivered. 87 * 88 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 89 * Unix names RESETHAND and NODEFER respectively. 90 */ 91#define SA_NOCLDSTOP 0x00000001 92#define SA_NOCLDWAIT 0x00000002 93#define SA_SIGINFO 0x00000004 94#define SA_THIRTYTWO 0x02000000 95#define SA_RESTORER 0x04000000 96#define SA_ONSTACK 0x08000000 97#define SA_RESTART 0x10000000 98#define SA_NODEFER 0x40000000 99#define SA_RESETHAND 0x80000000 100 101#define SA_NOMASK SA_NODEFER 102#define SA_ONESHOT SA_RESETHAND 103 104 105/* 106 * sigaltstack controls 107 */ 108#define SS_ONSTACK 1 109#define SS_DISABLE 2 110 111#define MINSIGSTKSZ 2048 112#define SIGSTKSZ 8192 113 114#include <asm-generic/signal-defs.h> 115 116#ifdef __KERNEL__ 117struct old_sigaction { 118 __sighandler_t sa_handler; 119 old_sigset_t sa_mask; 120 unsigned long sa_flags; 121 __sigrestore_t sa_restorer; 122}; 123 124struct sigaction { 125 __sighandler_t sa_handler; 126 unsigned long sa_flags; 127 __sigrestore_t sa_restorer; 128 sigset_t sa_mask; /* mask last for extensibility */ 129}; 130 131struct k_sigaction { 132 struct sigaction sa; 133}; 134 135#else 136/* Here we must cater to libcs that poke about in kernel headers. */ 137 138struct sigaction { 139 union { 140 __sighandler_t _sa_handler; 141 void (*_sa_sigaction)(int, struct siginfo *, void *); 142 } _u; 143 sigset_t sa_mask; 144 unsigned long sa_flags; 145 void (*sa_restorer)(void); 146}; 147 148#define sa_handler _u._sa_handler 149#define sa_sigaction _u._sa_sigaction 150 151#endif /* __KERNEL__ */ 152 153typedef struct sigaltstack { 154 void __user *ss_sp; 155 int ss_flags; 156 size_t ss_size; 157} stack_t; 158 159#ifdef __KERNEL__ 160#include <asm/sigcontext.h> 161#define ptrace_signal_deliver(regs, cookie) do { } while (0) 162#endif 163 164#endif 165