xref: /linux/arch/m68k/include/asm/signal.h (revision 3932b9ca55b0be314a36d3e84faff3e823c081f5)
1 #ifndef _M68K_SIGNAL_H
2 #define _M68K_SIGNAL_H
3 
4 #include <uapi/asm/signal.h>
5 
6 /* Most things should be clean enough to redefine this at will, if care
7    is taken to make libc match.  */
8 
9 #define _NSIG		64
10 #define _NSIG_BPW	32
11 #define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
12 
13 typedef unsigned long old_sigset_t;		/* at least 32 bits */
14 
15 typedef struct {
16 	unsigned long sig[_NSIG_WORDS];
17 } sigset_t;
18 
19 #define __ARCH_HAS_SA_RESTORER
20 
21 #include <asm/sigcontext.h>
22 
23 #ifndef CONFIG_CPU_HAS_NO_BITFIELDS
24 #define __HAVE_ARCH_SIG_BITOPS
25 
26 static inline void sigaddset(sigset_t *set, int _sig)
27 {
28 	asm ("bfset %0{%1,#1}"
29 		: "+o" (*set)
30 		: "id" ((_sig - 1) ^ 31)
31 		: "cc");
32 }
33 
34 static inline void sigdelset(sigset_t *set, int _sig)
35 {
36 	asm ("bfclr %0{%1,#1}"
37 		: "+o" (*set)
38 		: "id" ((_sig - 1) ^ 31)
39 		: "cc");
40 }
41 
42 static inline int __const_sigismember(sigset_t *set, int _sig)
43 {
44 	unsigned long sig = _sig - 1;
45 	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
46 }
47 
48 static inline int __gen_sigismember(sigset_t *set, int _sig)
49 {
50 	int ret;
51 	asm ("bfextu %1{%2,#1},%0"
52 		: "=d" (ret)
53 		: "o" (*set), "id" ((_sig-1) ^ 31)
54 		: "cc");
55 	return ret;
56 }
57 
58 #define sigismember(set,sig)			\
59 	(__builtin_constant_p(sig) ?		\
60 	 __const_sigismember(set,sig) :		\
61 	 __gen_sigismember(set,sig))
62 
63 #endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
64 
65 #ifndef __uClinux__
66 extern void ptrace_signal_deliver(void);
67 #define ptrace_signal_deliver ptrace_signal_deliver
68 #endif /* __uClinux__ */
69 
70 #endif /* _M68K_SIGNAL_H */
71