1 #ifndef _M68K_SIGNAL_H 2 #define _M68K_SIGNAL_H 3 4 #include <linux/types.h> 5 6 /* Avoid too many header ordering problems. */ 7 struct 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 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 #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 /* 74 * SA_FLAGS values: 75 * 76 * SA_ONSTACK indicates that a registered stack_t will be used. 77 * SA_RESTART flag to get restarting signals (which were the default long ago) 78 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 79 * SA_RESETHAND clears the handler when the signal is delivered. 80 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 81 * SA_NODEFER prevents the current signal from being masked in the handler. 82 * 83 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 84 * Unix names RESETHAND and NODEFER respectively. 85 */ 86 #define SA_NOCLDSTOP 0x00000001 87 #define SA_NOCLDWAIT 0x00000002 88 #define SA_SIGINFO 0x00000004 89 #define SA_ONSTACK 0x08000000 90 #define SA_RESTART 0x10000000 91 #define SA_NODEFER 0x40000000 92 #define SA_RESETHAND 0x80000000 93 94 #define SA_NOMASK SA_NODEFER 95 #define SA_ONESHOT SA_RESETHAND 96 97 /* 98 * sigaltstack controls 99 */ 100 #define SS_ONSTACK 1 101 #define SS_DISABLE 2 102 103 #define MINSIGSTKSZ 2048 104 #define SIGSTKSZ 8192 105 106 #include <asm-generic/signal-defs.h> 107 108 #ifdef __KERNEL__ 109 struct old_sigaction { 110 __sighandler_t sa_handler; 111 old_sigset_t sa_mask; 112 unsigned long sa_flags; 113 __sigrestore_t sa_restorer; 114 }; 115 116 struct sigaction { 117 __sighandler_t sa_handler; 118 unsigned long sa_flags; 119 __sigrestore_t sa_restorer; 120 sigset_t sa_mask; /* mask last for extensibility */ 121 }; 122 123 struct k_sigaction { 124 struct sigaction sa; 125 }; 126 #else 127 /* Here we must cater to libcs that poke about in kernel headers. */ 128 129 struct sigaction { 130 union { 131 __sighandler_t _sa_handler; 132 void (*_sa_sigaction)(int, struct siginfo *, void *); 133 } _u; 134 sigset_t sa_mask; 135 unsigned long sa_flags; 136 void (*sa_restorer)(void); 137 }; 138 139 #define sa_handler _u._sa_handler 140 #define sa_sigaction _u._sa_sigaction 141 142 #endif /* __KERNEL__ */ 143 144 typedef struct sigaltstack { 145 void __user *ss_sp; 146 int ss_flags; 147 size_t ss_size; 148 } stack_t; 149 150 #ifdef __KERNEL__ 151 #include <asm/sigcontext.h> 152 153 #ifndef CONFIG_CPU_HAS_NO_BITFIELDS 154 #define __HAVE_ARCH_SIG_BITOPS 155 156 static inline void sigaddset(sigset_t *set, int _sig) 157 { 158 asm ("bfset %0{%1,#1}" 159 : "+od" (*set) 160 : "id" ((_sig - 1) ^ 31) 161 : "cc"); 162 } 163 164 static inline void sigdelset(sigset_t *set, int _sig) 165 { 166 asm ("bfclr %0{%1,#1}" 167 : "+od" (*set) 168 : "id" ((_sig - 1) ^ 31) 169 : "cc"); 170 } 171 172 static inline int __const_sigismember(sigset_t *set, int _sig) 173 { 174 unsigned long sig = _sig - 1; 175 return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW)); 176 } 177 178 static inline int __gen_sigismember(sigset_t *set, int _sig) 179 { 180 int ret; 181 asm ("bfextu %1{%2,#1},%0" 182 : "=d" (ret) 183 : "od" (*set), "id" ((_sig-1) ^ 31) 184 : "cc"); 185 return ret; 186 } 187 188 #define sigismember(set,sig) \ 189 (__builtin_constant_p(sig) ? \ 190 __const_sigismember(set,sig) : \ 191 __gen_sigismember(set,sig)) 192 193 static inline int sigfindinword(unsigned long word) 194 { 195 asm ("bfffo %1{#0,#0},%0" 196 : "=d" (word) 197 : "d" (word & -word) 198 : "cc"); 199 return word ^ 31; 200 } 201 202 #endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */ 203 204 #ifdef __uClinux__ 205 #define ptrace_signal_deliver(regs, cookie) do { } while (0) 206 #else 207 struct pt_regs; 208 extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie); 209 #endif /* __uClinux__ */ 210 211 #endif /* __KERNEL__ */ 212 #endif /* _M68K_SIGNAL_H */ 213