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
20 typedef unsigned long old_sigset_t; /* at least 32 bits */
21
22 typedef struct {
23 unsigned long sig[_NSIG_WORDS];
24 } sigset_t;
25
26 #ifndef CONFIG_COMPAT
27 typedef sigset_t compat_sigset_t;
28 #endif
29
30 #endif /* __ASSEMBLY__ */
31 #include <uapi/asm/signal.h>
32 #ifndef __ASSEMBLY__
33 extern void do_signal(struct pt_regs *regs);
34
35 #define __ARCH_HAS_SA_RESTORER
36
37 #include <uapi/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
__gen_sigaddset(sigset_t * set,int _sig)48 static inline void __gen_sigaddset(sigset_t *set, int _sig)
49 {
50 asm("btsl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
51 }
52
__const_sigaddset(sigset_t * set,int _sig)53 static 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
__gen_sigdelset(sigset_t * set,int _sig)65 static inline void __gen_sigdelset(sigset_t *set, int _sig)
66 {
67 asm("btrl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
68 }
69
__const_sigdelset(sigset_t * set,int _sig)70 static 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
__const_sigismember(sigset_t * set,int _sig)76 static 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
__gen_sigismember(sigset_t * set,int _sig)82 static 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
95 struct 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