1 /*
2 * include/asm-s390/signal.h
3 *
4 * S390 version
5 *
6 * Derived from "include/asm-i386/signal.h"
7 */
8
9 #ifndef _ASMS390_SIGNAL_H
10 #define _ASMS390_SIGNAL_H
11
12 #include <linux/types.h>
13
14 /* Avoid too many header ordering problems. */
15 struct siginfo;
16
17 #ifdef __KERNEL__
18 /* Most things should be clean enough to redefine this at will, if care
19 is taken to make libc match. */
20 #include <asm/sigcontext.h>
21 #define _NSIG _SIGCONTEXT_NSIG
22 #define _NSIG_BPW _SIGCONTEXT_NSIG_BPW
23 #define _NSIG_WORDS _SIGCONTEXT_NSIG_WORDS
24
25 typedef unsigned long old_sigset_t; /* at least 32 bits */
26
27 typedef struct {
28 unsigned long sig[_NSIG_WORDS];
29 } sigset_t;
30
31 #else
32 /* Here we must cater to libcs that poke about in kernel headers. */
33
34 #define NSIG 32
35 typedef unsigned long sigset_t;
36
37 #endif /* __KERNEL__ */
38
39 #define SIGHUP 1
40 #define SIGINT 2
41 #define SIGQUIT 3
42 #define SIGILL 4
43 #define SIGTRAP 5
44 #define SIGABRT 6
45 #define SIGIOT 6
46 #define SIGBUS 7
47 #define SIGFPE 8
48 #define SIGKILL 9
49 #define SIGUSR1 10
50 #define SIGSEGV 11
51 #define SIGUSR2 12
52 #define SIGPIPE 13
53 #define SIGALRM 14
54 #define SIGTERM 15
55 #define SIGSTKFLT 16
56 #define SIGCHLD 17
57 #define SIGCONT 18
58 #define SIGSTOP 19
59 #define SIGTSTP 20
60 #define SIGTTIN 21
61 #define SIGTTOU 22
62 #define SIGURG 23
63 #define SIGXCPU 24
64 #define SIGXFSZ 25
65 #define SIGVTALRM 26
66 #define SIGPROF 27
67 #define SIGWINCH 28
68 #define SIGIO 29
69 #define SIGPOLL SIGIO
70 /*
71 #define SIGLOST 29
72 */
73 #define SIGPWR 30
74 #define SIGUNUSED 31
75
76 /* These should not be considered constants from userland. */
77 #define SIGRTMIN 32
78 #define SIGRTMAX (_NSIG-1)
79
80 /*
81 * SA_FLAGS values:
82 *
83 * SA_ONSTACK indicates that a registered stack_t will be used.
84 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
85 * SA_RESTART flag to get restarting signals (which were the default long ago)
86 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
87 * SA_RESETHAND clears the handler when the signal is delivered.
88 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
89 * SA_NODEFER prevents the current signal from being masked in the handler.
90 *
91 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
92 * Unix names RESETHAND and NODEFER respectively.
93 */
94 #define SA_NOCLDSTOP 0x00000001
95 #define SA_NOCLDWAIT 0x00000002 /* not supported yet */
96 #define SA_SIGINFO 0x00000004
97 #define SA_ONSTACK 0x08000000
98 #define SA_RESTART 0x10000000
99 #define SA_NODEFER 0x40000000
100 #define SA_RESETHAND 0x80000000
101
102 #define SA_NOMASK SA_NODEFER
103 #define SA_ONESHOT SA_RESETHAND
104 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
105
106 #define SA_RESTORER 0x04000000
107
108 /*
109 * sigaltstack controls
110 */
111 #define SS_ONSTACK 1
112 #define SS_DISABLE 2
113
114 #define MINSIGSTKSZ 2048
115 #define SIGSTKSZ 8192
116
117 #ifdef __KERNEL__
118
119 /*
120 * These values of sa_flags are used only by the kernel as part of the
121 * irq handling routines.
122 *
123 * SA_INTERRUPT is also used by the irq handling routines.
124 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
125 */
126 #define SA_PROBE SA_ONESHOT
127 #define SA_SAMPLE_RANDOM SA_RESTART
128 #define SA_SHIRQ 0x04000000
129 #endif
130
131 #define SIG_BLOCK 0 /* for blocking signals */
132 #define SIG_UNBLOCK 1 /* for unblocking signals */
133 #define SIG_SETMASK 2 /* for setting the signal mask */
134
135 /* Type of a signal handler. */
136 typedef void (*__sighandler_t)(int);
137
138 #define SIG_DFL ((__sighandler_t)0) /* default signal handling */
139 #define SIG_IGN ((__sighandler_t)1) /* ignore signal */
140 #define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
141
142 #ifdef __KERNEL__
143 struct old_sigaction {
144 __sighandler_t sa_handler;
145 old_sigset_t sa_mask;
146 unsigned long sa_flags;
147 void (*sa_restorer)(void);
148 };
149
150 struct sigaction {
151 __sighandler_t sa_handler;
152 unsigned long sa_flags;
153 void (*sa_restorer)(void);
154 sigset_t sa_mask; /* mask last for extensibility */
155 };
156
157 struct k_sigaction {
158 struct sigaction sa;
159 };
160 #else
161 /* Here we must cater to libcs that poke about in kernel headers. */
162
163 struct sigaction {
164 union {
165 __sighandler_t _sa_handler;
166 void (*_sa_sigaction)(int, struct siginfo *, void *);
167 } _u;
168 sigset_t sa_mask;
169 unsigned long sa_flags;
170 void (*sa_restorer)(void);
171 };
172
173 #define sa_handler _u._sa_handler
174 #define sa_sigaction _u._sa_sigaction
175
176 #endif /* __KERNEL__ */
177
178 typedef struct sigaltstack {
179 void *ss_sp;
180 int ss_flags;
181 size_t ss_size;
182 } stack_t;
183
184
185 #endif
186
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.