1#ifndef _ASM_X86_SIGNAL_H
2#define _ASM_X86_SIGNAL_H
3
4#ifndef __ASSEMBLY__
5#include <linux/linkage.h>
6
7/* Most things should be clean enough to redefine this at will, if care
8   is taken to make libc match.  */
9
10#define _NSIG		64
11
12#ifdef __i386__
13# define _NSIG_BPW	32
14#else
15# define _NSIG_BPW	64
16#endif
17
18#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
19
20typedef unsigned long old_sigset_t;		/* at least 32 bits */
21
22typedef struct {
23	unsigned long sig[_NSIG_WORDS];
24} sigset_t;
25
26#ifndef CONFIG_COMPAT
27typedef sigset_t compat_sigset_t;
28#endif
29
30#endif /* __ASSEMBLY__ */
31#include <uapi/asm/signal.h>
32#ifndef __ASSEMBLY__
33extern void do_notify_resume(struct pt_regs *, void *, __u32);
34
35#define __ARCH_HAS_SA_RESTORER
36
37#include <asm/sigcontext.h>
38
39#ifdef __i386__
40
41#define __HAVE_ARCH_SIG_BITOPS
42
43#define sigaddset(set,sig)		    \
44	(__builtin_constant_p(sig)	    \
45	 ? __const_sigaddset((set), (sig))  \
46	 : __gen_sigaddset((set), (sig)))
47
48static inline void __gen_sigaddset(sigset_t *set, int _sig)
49{
50	asm("btsl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
51}
52
53static inline void __const_sigaddset(sigset_t *set, int _sig)
54{
55	unsigned long sig = _sig - 1;
56	set->sig[sig / _NSIG_BPW] |= 1 << (sig % _NSIG_BPW);
57}
58
59#define sigdelset(set, sig)		    \
60	(__builtin_constant_p(sig)	    \
61	 ? __const_sigdelset((set), (sig))  \
62	 : __gen_sigdelset((set), (sig)))
63
64
65static inline void __gen_sigdelset(sigset_t *set, int _sig)
66{
67	asm("btrl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
68}
69
70static inline void __const_sigdelset(sigset_t *set, int _sig)
71{
72	unsigned long sig = _sig - 1;
73	set->sig[sig / _NSIG_BPW] &= ~(1 << (sig % _NSIG_BPW));
74}
75
76static inline int __const_sigismember(sigset_t *set, int _sig)
77{
78	unsigned long sig = _sig - 1;
79	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
80}
81
82static inline int __gen_sigismember(sigset_t *set, int _sig)
83{
84	int ret;
85	asm("btl %2,%1\n\tsbbl %0,%0"
86	    : "=r"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
87	return ret;
88}
89
90#define sigismember(set, sig)			\
91	(__builtin_constant_p(sig)		\
92	 ? __const_sigismember((set), (sig))	\
93	 : __gen_sigismember((set), (sig)))
94
95struct pt_regs;
96
97#else /* __i386__ */
98
99#undef __HAVE_ARCH_SIG_BITOPS
100
101#endif /* !__i386__ */
102
103#endif /* __ASSEMBLY__ */
104#endif /* _ASM_X86_SIGNAL_H */
105