| | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| | 2 | #ifndef _ASM_X86_SIGNAL_H |
| | 3 | #define _ASM_X86_SIGNAL_H |
| | 4 | |
| | 5 | #ifndef __ASSEMBLY__ |
| | 6 | #include <linux/linkage.h> |
| | 7 | |
| | 8 | /* Most things should be clean enough to redefine this at will, if care |
| | 9 | is taken to make libc match. */ |
| | 10 | |
| | 11 | #define _NSIG 64 |
| | 12 | |
| | 13 | #ifdef __i386__ |
| | 14 | # define _NSIG_BPW 32 |
| | 15 | #else |
| | 16 | # define _NSIG_BPW 64 |
| | 17 | #endif |
| | 18 | |
| | 19 | #define _NSIG_WORDS (_NSIG / _NSIG_BPW) |
| | 20 | |
| | 21 | typedef unsigned long old_sigset_t; /* at least 32 bits */ |
| | 22 | |
| | 23 | typedef struct { |
| | 24 | unsigned long sig[_NSIG_WORDS]; |
| | 25 | } sigset_t; |
| | 26 | |
| | 27 | /* non-uapi in-kernel SA_FLAGS for those indicates ABI for a signal frame */ |
| | 28 | #define SA_IA32_ABI 0x02000000u |
| | 29 | #define SA_X32_ABI 0x01000000u |
| | 30 | |
| | 31 | #ifndef CONFIG_COMPAT |
| | 32 | typedef sigset_t compat_sigset_t; |
| | 33 | #endif |
| | 34 | |
| | 35 | #endif /* __ASSEMBLY__ */ |
| | 36 | #include <uapi/asm/signal.h> |
| | 37 | #ifndef __ASSEMBLY__ |
| | 38 | extern void do_signal(struct pt_regs *regs); |
| | 39 | |
| | 40 | #define __ARCH_HAS_SA_RESTORER |
| | 41 | |
| | 42 | #include <asm/asm.h> |
| | 43 | #include <uapi/asm/sigcontext.h> |
| | 44 | |
| | 45 | #ifdef __i386__ |
| | 46 | |
| | 47 | #define __HAVE_ARCH_SIG_BITOPS |
| | 48 | |
| | 49 | #define sigaddset(set,sig) \ |
| | 50 | (__builtin_constant_p(sig) \ |
| | 51 | ? __const_sigaddset((set), (sig)) \ |
| | 52 | : __gen_sigaddset((set), (sig))) |
| | 53 | |
| | 54 | static inline void __gen_sigaddset(sigset_t *set, int _sig) |
| | 55 | { |
| | 56 | asm("btsl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc"); |
| | 57 | } |
| | 58 | |
| | 59 | static inline void __const_sigaddset(sigset_t *set, int _sig) |
| | 60 | { |
| | 61 | unsigned long sig = _sig - 1; |
| | 62 | set->sig[sig / _NSIG_BPW] |= 1 << (sig % _NSIG_BPW); |
| | 63 | } |
| | 64 | |
| | 65 | #define sigdelset(set, sig) \ |
| | 66 | (__builtin_constant_p(sig) \ |
| | 67 | ? __const_sigdelset((set), (sig)) \ |
| | 68 | : __gen_sigdelset((set), (sig))) |
| | 69 | |
| | 70 | |
| | 71 | static inline void __gen_sigdelset(sigset_t *set, int _sig) |
| | 72 | { |
| | 73 | asm("btrl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc"); |
| | 74 | } |
| | 75 | |
| | 76 | static inline void __const_sigdelset(sigset_t *set, int _sig) |
| | 77 | { |
| | 78 | unsigned long sig = _sig - 1; |
| | 79 | set->sig[sig / _NSIG_BPW] &= ~(1 << (sig % _NSIG_BPW)); |
| | 80 | } |
| | 81 | |
| | 82 | static inline int __const_sigismember(sigset_t *set, int _sig) |
| | 83 | { |
| | 84 | unsigned long sig = _sig - 1; |
| | 85 | return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW)); |
| | 86 | } |
| | 87 | |
| | 88 | static inline int __gen_sigismember(sigset_t *set, int _sig) |
| | 89 | { |
| | 90 | bool ret; |
| | 91 | asm("btl %2,%1" CC_SET(c) |
| | 92 | : CC_OUT(c) (ret) : "m"(*set), "Ir"(_sig-1)); |
| | 93 | return ret; |
| | 94 | } |
| | 95 | |
| | 96 | #define sigismember(set, sig) \ |
| | 97 | (__builtin_constant_p(sig) \ |
| | 98 | ? __const_sigismember((set), (sig)) \ |
| | 99 | : __gen_sigismember((set), (sig))) |
| | 100 | |
| | 101 | struct pt_regs; |
| | 102 | |
| | 103 | #else /* __i386__ */ |
| | 104 | |
| | 105 | #undef __HAVE_ARCH_SIG_BITOPS |
| | 106 | |
| | 107 | #endif /* !__i386__ */ |
| | 108 | |
| | 109 | #endif /* __ASSEMBLY__ */ |
| | 110 | #endif /* _ASM_X86_SIGNAL_H */ |
projects / linux-2.6-block.git / blame_incremental