4 #include <linux/types.h>
6 /* Avoid too many header ordering problems. */
10 /* Most things should be clean enough to redefine this at will, if care
11 is taken to make libc match. */
15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
17 typedef unsigned long old_sigset_t; /* at least 32 bits */
20 unsigned long sig[_NSIG_WORDS];
24 /* Here we must cater to libcs that poke about in kernel headers. */
27 typedef unsigned long sigset_t;
29 #endif /* __KERNEL__ */
69 /* These should not be considered constants from userland. */
71 #define SIGRTMAX _NSIG
76 * SA_ONSTACK indicates that a registered stack_t will be used.
77 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
78 * SA_RESTART flag to get restarting signals (which were the default long ago)
79 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
80 * SA_RESETHAND clears the handler when the signal is delivered.
81 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
82 * SA_NODEFER prevents the current signal from being masked in the handler.
84 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
85 * Unix names RESETHAND and NODEFER respectively.
87 #define SA_NOCLDSTOP 0x00000001
88 #define SA_NOCLDWAIT 0x00000002
89 #define SA_SIGINFO 0x00000004
90 #define SA_ONSTACK 0x08000000
91 #define SA_RESTART 0x10000000
92 #define SA_NODEFER 0x40000000
93 #define SA_RESETHAND 0x80000000
95 #define SA_NOMASK SA_NODEFER
96 #define SA_ONESHOT SA_RESETHAND
97 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
100 * sigaltstack controls
105 #define MINSIGSTKSZ 2048
106 #define SIGSTKSZ 8192
108 #include <asm-generic/signal.h>
111 struct old_sigaction {
112 __sighandler_t sa_handler;
113 old_sigset_t sa_mask;
114 unsigned long sa_flags;
115 __sigrestore_t sa_restorer;
119 __sighandler_t sa_handler;
120 unsigned long sa_flags;
121 __sigrestore_t sa_restorer;
122 sigset_t sa_mask; /* mask last for extensibility */
129 /* Here we must cater to libcs that poke about in kernel headers. */
133 __sighandler_t _sa_handler;
134 void (*_sa_sigaction)(int, struct siginfo *, void *);
137 unsigned long sa_flags;
138 void (*sa_restorer)(void);
141 #define sa_handler _u._sa_handler
142 #define sa_sigaction _u._sa_sigaction
144 #endif /* __KERNEL__ */
146 typedef struct sigaltstack {
153 #include <asm/sigcontext.h>
155 #define __HAVE_ARCH_SIG_BITOPS
157 static inline void sigaddset(sigset_t *set, int _sig)
159 __asm__("bfset %0{%1,#1}" : "=m" (*set) : "id" ((_sig - 1) ^ 31)
163 static inline void sigdelset(sigset_t *set, int _sig)
165 __asm__("bfclr %0{%1,#1}" : "=m"(*set) : "id"((_sig - 1) ^ 31)
169 static inline int __const_sigismember(sigset_t *set, int _sig)
171 unsigned long sig = _sig - 1;
172 return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
175 static inline int __gen_sigismember(sigset_t *set, int _sig)
178 __asm__("bfextu %1{%2,#1},%0"
179 : "=d"(ret) : "m"(*set), "id"((_sig-1) ^ 31));
183 #define sigismember(set,sig) \
184 (__builtin_constant_p(sig) ? \
185 __const_sigismember(set,sig) : \
186 __gen_sigismember(set,sig))
188 static inline int sigfindinword(unsigned long word)
190 __asm__("bfffo %1{#0,#0},%0" : "=d"(word) : "d"(word & -word) : "cc");
194 extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
196 #endif /* __KERNEL__ */
198 #endif /* _M68K_SIGNAL_H */