1 #ifndef _ASMAXP_SIGNAL_H 2 #define _ASMAXP_SIGNAL_H 3 4 #include <linux/types.h> 5 6 /* Avoid too many header ordering problems. */ 7 struct siginfo; 8 9 #ifdef __KERNEL__ 10 /* Digital Unix defines 64 signals. Most things should be clean enough 11 to redefine this at will, if care is taken to make libc match. */ 12 13 #define _NSIG 64 14 #define _NSIG_BPW 64 15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW) 16 17 typedef unsigned long old_sigset_t; /* at least 32 bits */ 18 19 typedef 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 27 typedef unsigned long sigset_t; 28 29 #endif /* __KERNEL__ */ 30 31 32 /* 33 * Linux/AXP has different signal numbers that Linux/i386: I'm trying 34 * to make it OSF/1 binary compatible, at least for normal binaries. 35 */ 36 #define SIGHUP 1 37 #define SIGINT 2 38 #define SIGQUIT 3 39 #define SIGILL 4 40 #define SIGTRAP 5 41 #define SIGABRT 6 42 #define SIGEMT 7 43 #define SIGFPE 8 44 #define SIGKILL 9 45 #define SIGBUS 10 46 #define SIGSEGV 11 47 #define SIGSYS 12 48 #define SIGPIPE 13 49 #define SIGALRM 14 50 #define SIGTERM 15 51 #define SIGURG 16 52 #define SIGSTOP 17 53 #define SIGTSTP 18 54 #define SIGCONT 19 55 #define SIGCHLD 20 56 #define SIGTTIN 21 57 #define SIGTTOU 22 58 #define SIGIO 23 59 #define SIGXCPU 24 60 #define SIGXFSZ 25 61 #define SIGVTALRM 26 62 #define SIGPROF 27 63 #define SIGWINCH 28 64 #define SIGINFO 29 65 #define SIGUSR1 30 66 #define SIGUSR2 31 67 68 #define SIGPOLL SIGIO 69 #define SIGPWR SIGINFO 70 #define SIGIOT SIGABRT 71 72 /* These should not be considered constants from userland. */ 73 #define SIGRTMIN 32 74 #define SIGRTMAX _NSIG 75 76 /* 77 * SA_FLAGS values: 78 * 79 * SA_ONSTACK indicates that a registered stack_t will be used. 80 * SA_RESTART flag to get restarting signals (which were the default long ago) 81 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 82 * SA_RESETHAND clears the handler when the signal is delivered. 83 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 84 * SA_NODEFER prevents the current signal from being masked in the handler. 85 * 86 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 87 * Unix names RESETHAND and NODEFER respectively. 88 */ 89 90 #define SA_ONSTACK 0x00000001 91 #define SA_RESTART 0x00000002 92 #define SA_NOCLDSTOP 0x00000004 93 #define SA_NODEFER 0x00000008 94 #define SA_RESETHAND 0x00000010 95 #define SA_NOCLDWAIT 0x00000020 96 #define SA_SIGINFO 0x00000040 97 98 #define SA_ONESHOT SA_RESETHAND 99 #define SA_NOMASK SA_NODEFER 100 101 /* 102 * sigaltstack controls 103 */ 104 #define SS_ONSTACK 1 105 #define SS_DISABLE 2 106 107 #define MINSIGSTKSZ 4096 108 #define SIGSTKSZ 16384 109 110 #define SIG_BLOCK 1 /* for blocking signals */ 111 #define SIG_UNBLOCK 2 /* for unblocking signals */ 112 #define SIG_SETMASK 3 /* for setting the signal mask */ 113 114 #include <asm-generic/signal-defs.h> 115 116 #ifdef __KERNEL__ 117 struct osf_sigaction { 118 __sighandler_t sa_handler; 119 old_sigset_t sa_mask; 120 int sa_flags; 121 }; 122 123 struct sigaction { 124 __sighandler_t sa_handler; 125 unsigned long sa_flags; 126 sigset_t sa_mask; /* mask last for extensibility */ 127 }; 128 129 struct k_sigaction { 130 struct sigaction sa; 131 __sigrestore_t ka_restorer; 132 }; 133 #else 134 /* Here we must cater to libcs that poke about in kernel headers. */ 135 136 struct sigaction { 137 union { 138 __sighandler_t _sa_handler; 139 void (*_sa_sigaction)(int, struct siginfo *, void *); 140 } _u; 141 sigset_t sa_mask; 142 int sa_flags; 143 }; 144 145 #define sa_handler _u._sa_handler 146 #define sa_sigaction _u._sa_sigaction 147 148 #endif /* __KERNEL__ */ 149 150 typedef struct sigaltstack { 151 void __user *ss_sp; 152 int ss_flags; 153 size_t ss_size; 154 } stack_t; 155 156 /* sigstack(2) is deprecated, and will be withdrawn in a future version 157 of the X/Open CAE Specification. Use sigaltstack instead. It is only 158 implemented here for OSF/1 compatibility. */ 159 160 struct sigstack { 161 void __user *ss_sp; 162 int ss_onstack; 163 }; 164 165 #ifdef __KERNEL__ 166 #include <asm/sigcontext.h> 167 168 #define ptrace_signal_deliver(regs, cookie) do { } while (0) 169 170 #endif 171 172 #endif 173