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 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 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 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 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 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 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