fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / signal_64.h
blob4581f978b299d79df12f274dbd7ad14b2ff35598
1 #ifndef _ASMx8664_SIGNAL_H
2 #define _ASMx8664_SIGNAL_H
4 #ifndef __ASSEMBLY__
5 #include <linux/types.h>
6 #include <linux/time.h>
8 /* Avoid too many header ordering problems. */
9 struct siginfo;
11 #ifdef __KERNEL__
12 #include <linux/linkage.h>
13 /* Most things should be clean enough to redefine this at will, if care
14 is taken to make libc match. */
16 #define _NSIG 64
17 #define _NSIG_BPW 64
18 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
20 typedef unsigned long old_sigset_t; /* at least 32 bits */
22 typedef struct {
23 unsigned long sig[_NSIG_WORDS];
24 } sigset_t;
27 #else
28 /* Here we must cater to libcs that poke about in kernel headers. */
30 #define NSIG 32
31 typedef unsigned long sigset_t;
33 #endif /* __KERNEL__ */
34 #endif
36 #define SIGHUP 1
37 #define SIGINT 2
38 #define SIGQUIT 3
39 #define SIGILL 4
40 #define SIGTRAP 5
41 #define SIGABRT 6
42 #define SIGIOT 6
43 #define SIGBUS 7
44 #define SIGFPE 8
45 #define SIGKILL 9
46 #define SIGUSR1 10
47 #define SIGSEGV 11
48 #define SIGUSR2 12
49 #define SIGPIPE 13
50 #define SIGALRM 14
51 #define SIGTERM 15
52 #define SIGSTKFLT 16
53 #define SIGCHLD 17
54 #define SIGCONT 18
55 #define SIGSTOP 19
56 #define SIGTSTP 20
57 #define SIGTTIN 21
58 #define SIGTTOU 22
59 #define SIGURG 23
60 #define SIGXCPU 24
61 #define SIGXFSZ 25
62 #define SIGVTALRM 26
63 #define SIGPROF 27
64 #define SIGWINCH 28
65 #define SIGIO 29
66 #define SIGPOLL SIGIO
68 #define SIGLOST 29
70 #define SIGPWR 30
71 #define SIGSYS 31
72 #define SIGUNUSED 31
74 /* These should not be considered constants from userland. */
75 #define SIGRTMIN 32
76 #define SIGRTMAX _NSIG
79 * SA_FLAGS values:
81 * SA_ONSTACK indicates that a registered stack_t will be used.
82 * SA_RESTART flag to get restarting signals (which were the default long ago)
83 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
84 * SA_RESETHAND clears the handler when the signal is delivered.
85 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
86 * SA_NODEFER prevents the current signal from being masked in the handler.
88 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
89 * Unix names RESETHAND and NODEFER respectively.
91 #define SA_NOCLDSTOP 0x00000001
92 #define SA_NOCLDWAIT 0x00000002
93 #define SA_SIGINFO 0x00000004
94 #define SA_ONSTACK 0x08000000
95 #define SA_RESTART 0x10000000
96 #define SA_NODEFER 0x40000000
97 #define SA_RESETHAND 0x80000000
99 #define SA_NOMASK SA_NODEFER
100 #define SA_ONESHOT SA_RESETHAND
102 #define SA_RESTORER 0x04000000
105 * sigaltstack controls
107 #define SS_ONSTACK 1
108 #define SS_DISABLE 2
110 #define MINSIGSTKSZ 2048
111 #define SIGSTKSZ 8192
113 #include <asm-generic/signal.h>
115 #ifndef __ASSEMBLY__
117 struct sigaction {
118 __sighandler_t sa_handler;
119 unsigned long sa_flags;
120 __sigrestore_t sa_restorer;
121 sigset_t sa_mask; /* mask last for extensibility */
124 struct k_sigaction {
125 struct sigaction sa;
128 typedef struct sigaltstack {
129 void __user *ss_sp;
130 int ss_flags;
131 size_t ss_size;
132 } stack_t;
134 #ifdef __KERNEL__
135 #include <asm/sigcontext.h>
137 #undef __HAVE_ARCH_SIG_BITOPS
138 #if 0
140 static inline void sigaddset(sigset_t *set, int _sig)
142 __asm__("btsq %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
145 static inline void sigdelset(sigset_t *set, int _sig)
147 __asm__("btrq %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
150 static inline int __const_sigismember(sigset_t *set, int _sig)
152 unsigned long sig = _sig - 1;
153 return 1 & (set->sig[sig / _NSIG_BPW] >> (sig & ~(_NSIG_BPW-1)));
156 static inline int __gen_sigismember(sigset_t *set, int _sig)
158 int ret;
159 __asm__("btq %2,%1\n\tsbbq %0,%0"
160 : "=r"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
161 return ret;
164 #define sigismember(set,sig) \
165 (__builtin_constant_p(sig) ? \
166 __const_sigismember((set),(sig)) : \
167 __gen_sigismember((set),(sig)))
169 static inline int sigfindinword(unsigned long word)
171 __asm__("bsfq %1,%0" : "=r"(word) : "rm"(word) : "cc");
172 return word;
174 #endif
175 #endif
177 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
179 #endif /* __KERNEL__ */
181 #endif