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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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#include <linux/time.h>
14
15/* Avoid too many header ordering problems. */
16struct siginfo;
17struct pt_regs;
18
19#ifdef __KERNEL__
20/* Most things should be clean enough to redefine this at will, if care
21 is taken to make libc match. */
22#include <asm/sigcontext.h>
23#define _NSIG _SIGCONTEXT_NSIG
24#define _NSIG_BPW _SIGCONTEXT_NSIG_BPW
25#define _NSIG_WORDS _SIGCONTEXT_NSIG_WORDS
26
27typedef unsigned long old_sigset_t; /* at least 32 bits */
28
29typedef struct {
30 unsigned long sig[_NSIG_WORDS];
31} sigset_t;
32
33#else
34/* Here we must cater to libcs that poke about in kernel headers. */
35
36#define NSIG 32
37typedef unsigned long sigset_t;
38
39#endif /* __KERNEL__ */
40
41#define SIGHUP 1
42#define SIGINT 2
43#define SIGQUIT 3
44#define SIGILL 4
45#define SIGTRAP 5
46#define SIGABRT 6
47#define SIGIOT 6
48#define SIGBUS 7
49#define SIGFPE 8
50#define SIGKILL 9
51#define SIGUSR1 10
52#define SIGSEGV 11
53#define SIGUSR2 12
54#define SIGPIPE 13
55#define SIGALRM 14
56#define SIGTERM 15
57#define SIGSTKFLT 16
58#define SIGCHLD 17
59#define SIGCONT 18
60#define SIGSTOP 19
61#define SIGTSTP 20
62#define SIGTTIN 21
63#define SIGTTOU 22
64#define SIGURG 23
65#define SIGXCPU 24
66#define SIGXFSZ 25
67#define SIGVTALRM 26
68#define SIGPROF 27
69#define SIGWINCH 28
70#define SIGIO 29
71#define SIGPOLL SIGIO
72/*
73#define SIGLOST 29
74*/
75#define SIGPWR 30
76#define SIGSYS 31
77#define SIGUNUSED 31
78
79/* These should not be considered constants from userland. */
80#define SIGRTMIN 32
81#define SIGRTMAX _NSIG
82
83/*
84 * SA_FLAGS values:
85 *
86 * SA_ONSTACK indicates that a registered stack_t will be used.
87 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
88 * SA_RESTART flag to get restarting signals (which were the default long ago)
89 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
90 * SA_RESETHAND clears the handler when the signal is delivered.
91 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
92 * SA_NODEFER prevents the current signal from being masked in the handler.
93 *
94 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
95 * Unix names RESETHAND and NODEFER respectively.
96 */
97#define SA_NOCLDSTOP 0x00000001
98#define SA_NOCLDWAIT 0x00000002
99#define SA_SIGINFO 0x00000004
100#define SA_ONSTACK 0x08000000
101#define SA_RESTART 0x10000000
102#define SA_NODEFER 0x40000000
103#define SA_RESETHAND 0x80000000
104
105#define SA_NOMASK SA_NODEFER
106#define SA_ONESHOT SA_RESETHAND
107#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
108
109#define SA_RESTORER 0x04000000
110
111/*
112 * sigaltstack controls
113 */
114#define SS_ONSTACK 1
115#define SS_DISABLE 2
116
117#define MINSIGSTKSZ 2048
118#define SIGSTKSZ 8192
119
120#include <asm-generic/signal.h>
121
122#ifdef __KERNEL__
123struct old_sigaction {
124 __sighandler_t sa_handler;
125 old_sigset_t sa_mask;
126 unsigned long sa_flags;
127 void (*sa_restorer)(void);
128};
129
130struct sigaction {
131 __sighandler_t sa_handler;
132 unsigned long sa_flags;
133 void (*sa_restorer)(void);
134 sigset_t sa_mask; /* mask last for extensibility */
135};
136
137struct k_sigaction {
138 struct sigaction sa;
139};
140
141#define ptrace_signal_deliver(regs, cookie) do { } while (0)
142
143#else
144/* Here we must cater to libcs that poke about in kernel headers. */
145
146struct sigaction {
147 union {
148 __sighandler_t _sa_handler;
149 void (*_sa_sigaction)(int, struct siginfo *, void *);
150 } _u;
151#ifndef __s390x__ /* lovely */
152 sigset_t sa_mask;
153 unsigned long sa_flags;
154 void (*sa_restorer)(void);
155#else /* __s390x__ */
156 unsigned long sa_flags;
157 void (*sa_restorer)(void);
158 sigset_t sa_mask;
159#endif /* __s390x__ */
160};
161
162#define sa_handler _u._sa_handler
163#define sa_sigaction _u._sa_sigaction
164
165#endif /* __KERNEL__ */
166
167typedef struct sigaltstack {
168 void *ss_sp;
169 int ss_flags;
170 size_t ss_size;
171} stack_t;
172
173
174#endif