ia64/linux-2.6.18-xen.hg

view include/asm-m68knommu/signal.h @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 #ifndef _M68KNOMMU_SIGNAL_H
2 #define _M68KNOMMU_SIGNAL_H
4 #include <linux/types.h>
6 /* Avoid too many header ordering problems. */
7 struct siginfo;
9 #ifdef __KERNEL__
10 /* Most things should be clean enough to redefine this at will, if care
11 is taken to make libc match. */
13 #define _NSIG 64
14 #define _NSIG_BPW 32
15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
17 typedef unsigned long old_sigset_t; /* at least 32 bits */
19 typedef struct {
20 unsigned long sig[_NSIG_WORDS];
21 } sigset_t;
23 #else
24 /* Here we must cater to libcs that poke about in kernel headers. */
26 #define NSIG 32
27 typedef unsigned long sigset_t;
29 #endif /* __KERNEL__ */
31 #define SIGHUP 1
32 #define SIGINT 2
33 #define SIGQUIT 3
34 #define SIGILL 4
35 #define SIGTRAP 5
36 #define SIGABRT 6
37 #define SIGIOT 6
38 #define SIGBUS 7
39 #define SIGFPE 8
40 #define SIGKILL 9
41 #define SIGUSR1 10
42 #define SIGSEGV 11
43 #define SIGUSR2 12
44 #define SIGPIPE 13
45 #define SIGALRM 14
46 #define SIGTERM 15
47 #define SIGSTKFLT 16
48 #define SIGCHLD 17
49 #define SIGCONT 18
50 #define SIGSTOP 19
51 #define SIGTSTP 20
52 #define SIGTTIN 21
53 #define SIGTTOU 22
54 #define SIGURG 23
55 #define SIGXCPU 24
56 #define SIGXFSZ 25
57 #define SIGVTALRM 26
58 #define SIGPROF 27
59 #define SIGWINCH 28
60 #define SIGIO 29
61 #define SIGPOLL SIGIO
62 /*
63 #define SIGLOST 29
64 */
65 #define SIGPWR 30
66 #define SIGSYS 31
67 #define SIGUNUSED 31
69 /* These should not be considered constants from userland. */
70 #define SIGRTMIN 32
71 #define SIGRTMAX _NSIG
73 /*
74 * SA_FLAGS values:
75 *
76 * SA_ONSTACK indicates that a registered stack_t will be used.
77 * SA_RESTART flag to get restarting signals (which were the default long ago)
78 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
79 * SA_RESETHAND clears the handler when the signal is delivered.
80 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
81 * SA_NODEFER prevents the current signal from being masked in the handler.
82 *
83 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
84 * Unix names RESETHAND and NODEFER respectively.
85 */
86 #define SA_NOCLDSTOP 0x00000001
87 #define SA_NOCLDWAIT 0x00000002
88 #define SA_SIGINFO 0x00000004
89 #define SA_ONSTACK 0x08000000
90 #define SA_RESTART 0x10000000
91 #define SA_NODEFER 0x40000000
92 #define SA_RESETHAND 0x80000000
94 #define SA_NOMASK SA_NODEFER
95 #define SA_ONESHOT SA_RESETHAND
97 /*
98 * sigaltstack controls
99 */
100 #define SS_ONSTACK 1
101 #define SS_DISABLE 2
103 #define MINSIGSTKSZ 2048
104 #define SIGSTKSZ 8192
106 #include <asm-generic/signal.h>
108 #ifdef __KERNEL__
109 struct old_sigaction {
110 __sighandler_t sa_handler;
111 old_sigset_t sa_mask;
112 unsigned long sa_flags;
113 void (*sa_restorer)(void);
114 };
116 struct sigaction {
117 __sighandler_t sa_handler;
118 unsigned long sa_flags;
119 void (*sa_restorer)(void);
120 sigset_t sa_mask; /* mask last for extensibility */
121 };
123 struct k_sigaction {
124 struct sigaction sa;
125 };
126 #else
127 /* Here we must cater to libcs that poke about in kernel headers. */
129 struct sigaction {
130 union {
131 __sighandler_t _sa_handler;
132 void (*_sa_sigaction)(int, struct siginfo *, void *);
133 } _u;
134 sigset_t sa_mask;
135 unsigned long sa_flags;
136 void (*sa_restorer)(void);
137 };
139 #define sa_handler _u._sa_handler
140 #define sa_sigaction _u._sa_sigaction
142 #endif /* __KERNEL__ */
144 typedef struct sigaltstack {
145 void *ss_sp;
146 int ss_flags;
147 size_t ss_size;
148 } stack_t;
150 #ifdef __KERNEL__
152 #include <asm/sigcontext.h>
153 #undef __HAVE_ARCH_SIG_BITOPS
155 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
157 #endif /* __KERNEL__ */
159 #endif /* _M68KNOMMU_SIGNAL_H */