aboutsummaryrefslogtreecommitdiff
path: root/arch/s390/include/asm/signal.h
blob: c872626346e508018e280503067f893b7ef246df (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
/*
 *  include/asm-s390/signal.h
 *
 *  S390 version
 *
 *  Derived from "include/asm-i386/signal.h"
 */

#ifndef _ASMS390_SIGNAL_H
#define _ASMS390_SIGNAL_H

#include <linux/types.h>
#include <linux/time.h>

/* Avoid too many header ordering problems.  */
struct siginfo;
struct pt_regs;

#ifdef __KERNEL__
/* Most things should be clean enough to redefine this at will, if care
   is taken to make libc match.  */
#include <asm/sigcontext.h>
#define _NSIG           _SIGCONTEXT_NSIG
#define _NSIG_BPW       _SIGCONTEXT_NSIG_BPW
#define _NSIG_WORDS     _SIGCONTEXT_NSIG_WORDS

typedef unsigned long old_sigset_t;             /* at least 32 bits */

typedef struct {
        unsigned long sig[_NSIG_WORDS];
} sigset_t;

#else
/* Here we must cater to libcs that poke about in kernel headers.  */

#define NSIG            32
typedef unsigned long sigset_t;

#endif /* __KERNEL__ */

#define SIGHUP           1
#define SIGINT           2
#define SIGQUIT          3
#define SIGILL           4
#define SIGTRAP          5
#define SIGABRT          6
#define SIGIOT           6
#define SIGBUS           7
#define SIGFPE           8
#define SIGKILL          9
#define SIGUSR1         10
#define SIGSEGV         11
#define SIGUSR2         12
#define SIGPIPE         13
#define SIGALRM         14
#define SIGTERM         15
#define SIGSTKFLT       16
#define SIGCHLD         17
#define SIGCONT         18
#define SIGSTOP         19
#define SIGTSTP         20
#define SIGTTIN         21
#define SIGTTOU         22
#define SIGURG          23
#define SIGXCPU         24
#define SIGXFSZ         25
#define SIGVTALRM       26
#define SIGPROF         27
#define SIGWINCH        28
#define SIGIO           29
#define SIGPOLL         SIGIO
/*
#define SIGLOST         29
*/
#define SIGPWR          30
#define SIGSYS		31
#define SIGUNUSED       31

/* These should not be considered constants from userland.  */
#define SIGRTMIN        32
#define SIGRTMAX        _NSIG

/*
 * SA_FLAGS values:
 *
 * SA_ONSTACK indicates that a registered stack_t will be used.
 * SA_RESTART flag to get restarting signals (which were the default long ago)
 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 * SA_RESETHAND clears the handler when the signal is delivered.
 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 * SA_NODEFER prevents the current signal from being masked in the handler.
 *
 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 * Unix names RESETHAND and NODEFER respectively.
 */
#define SA_NOCLDSTOP    0x00000001
#define SA_NOCLDWAIT    0x00000002
#define SA_SIGINFO      0x00000004
#define SA_ONSTACK      0x08000000
#define SA_RESTART      0x10000000
#define SA_NODEFER      0x40000000
#define SA_RESETHAND    0x80000000

#define SA_NOMASK       SA_NODEFER
#define SA_ONESHOT      SA_RESETHAND

#define SA_RESTORER     0x04000000

/*
 * sigaltstack controls
 */
#define SS_ONSTACK      1
#define SS_DISABLE      2

#define MINSIGSTKSZ     2048
#define SIGSTKSZ        8192

#include <asm-generic/signal-defs.h>

#ifdef __KERNEL__
struct old_sigaction {
        __sighandler_t sa_handler;
        old_sigset_t sa_mask;
        unsigned long sa_flags;
        void (*sa_restorer)(void);
};

struct sigaction {
        __sighandler_t sa_handler;
        unsigned long sa_flags;
        void (*sa_restorer)(void);
        sigset_t sa_mask;               /* mask last for extensibility */
};
#define __ARCH_HAS_SA_RESTORER

struct k_sigaction {
        struct sigaction sa;
};

#define ptrace_signal_deliver(regs, cookie) do { } while (0)

#else
/* Here we must cater to libcs that poke about in kernel headers.  */

struct sigaction {
        union {
          __sighandler_t _sa_handler;
          void (*_sa_sigaction)(int, struct siginfo *, void *);
        } _u;
#ifndef __s390x__ /* lovely */
        sigset_t sa_mask;
        unsigned long sa_flags;
        void (*sa_restorer)(void);
#else  /* __s390x__ */
        unsigned long sa_flags;
        void (*sa_restorer)(void);
	sigset_t sa_mask;
#endif /* __s390x__ */
};

#define sa_handler      _u._sa_handler
#define sa_sigaction    _u._sa_sigaction

#endif /* __KERNEL__ */

typedef struct sigaltstack {
        void __user *ss_sp;
        int ss_flags;
        size_t ss_size;
} stack_t;


#endif