xref: /linux/arch/x86/include/uapi/asm/signal.h (revision 827634added7f38b7d724cab1dccdb2b004c13c3)
1 #ifndef _UAPI_ASM_X86_SIGNAL_H
2 #define _UAPI_ASM_X86_SIGNAL_H
3 
4 #ifndef __ASSEMBLY__
5 #include <linux/types.h>
6 #include <linux/time.h>
7 #include <linux/compiler.h>
8 
9 /* Avoid too many header ordering problems.  */
10 struct siginfo;
11 
12 #ifndef __KERNEL__
13 /* Here we must cater to libcs that poke about in kernel headers.  */
14 
15 #define NSIG		32
16 typedef unsigned long sigset_t;
17 
18 #endif /* __KERNEL__ */
19 #endif /* __ASSEMBLY__ */
20 
21 
22 #define SIGHUP		 1
23 #define SIGINT		 2
24 #define SIGQUIT		 3
25 #define SIGILL		 4
26 #define SIGTRAP		 5
27 #define SIGABRT		 6
28 #define SIGIOT		 6
29 #define SIGBUS		 7
30 #define SIGFPE		 8
31 #define SIGKILL		 9
32 #define SIGUSR1		10
33 #define SIGSEGV		11
34 #define SIGUSR2		12
35 #define SIGPIPE		13
36 #define SIGALRM		14
37 #define SIGTERM		15
38 #define SIGSTKFLT	16
39 #define SIGCHLD		17
40 #define SIGCONT		18
41 #define SIGSTOP		19
42 #define SIGTSTP		20
43 #define SIGTTIN		21
44 #define SIGTTOU		22
45 #define SIGURG		23
46 #define SIGXCPU		24
47 #define SIGXFSZ		25
48 #define SIGVTALRM	26
49 #define SIGPROF		27
50 #define SIGWINCH	28
51 #define SIGIO		29
52 #define SIGPOLL		SIGIO
53 /*
54 #define SIGLOST		29
55 */
56 #define SIGPWR		30
57 #define SIGSYS		31
58 #define	SIGUNUSED	31
59 
60 /* These should not be considered constants from userland.  */
61 #define SIGRTMIN	32
62 #define SIGRTMAX	_NSIG
63 
64 /*
65  * SA_FLAGS values:
66  *
67  * SA_ONSTACK indicates that a registered stack_t will be used.
68  * SA_RESTART flag to get restarting signals (which were the default long ago)
69  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
70  * SA_RESETHAND clears the handler when the signal is delivered.
71  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
72  * SA_NODEFER prevents the current signal from being masked in the handler.
73  *
74  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
75  * Unix names RESETHAND and NODEFER respectively.
76  */
77 #define SA_NOCLDSTOP	0x00000001u
78 #define SA_NOCLDWAIT	0x00000002u
79 #define SA_SIGINFO	0x00000004u
80 #define SA_ONSTACK	0x08000000u
81 #define SA_RESTART	0x10000000u
82 #define SA_NODEFER	0x40000000u
83 #define SA_RESETHAND	0x80000000u
84 
85 #define SA_NOMASK	SA_NODEFER
86 #define SA_ONESHOT	SA_RESETHAND
87 
88 #define SA_RESTORER	0x04000000
89 
90 #define MINSIGSTKSZ	2048
91 #define SIGSTKSZ	8192
92 
93 #include <asm-generic/signal-defs.h>
94 
95 #ifndef __ASSEMBLY__
96 
97 
98 # ifndef __KERNEL__
99 /* Here we must cater to libcs that poke about in kernel headers.  */
100 #ifdef __i386__
101 
102 struct sigaction {
103 	union {
104 	  __sighandler_t _sa_handler;
105 	  void (*_sa_sigaction)(int, struct siginfo *, void *);
106 	} _u;
107 	sigset_t sa_mask;
108 	unsigned long sa_flags;
109 	void (*sa_restorer)(void);
110 };
111 
112 #define sa_handler	_u._sa_handler
113 #define sa_sigaction	_u._sa_sigaction
114 
115 #else /* __i386__ */
116 
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 */
122 };
123 
124 #endif /* !__i386__ */
125 # endif /* ! __KERNEL__ */
126 
127 typedef struct sigaltstack {
128 	void __user *ss_sp;
129 	int ss_flags;
130 	size_t ss_size;
131 } stack_t;
132 
133 #endif /* __ASSEMBLY__ */
134 
135 #endif /* _UAPI_ASM_X86_SIGNAL_H */
136