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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/signal.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-x86_64/signal.h')
-rw-r--r--include/asm-x86_64/signal.h213
1 files changed, 213 insertions, 0 deletions
diff --git a/include/asm-x86_64/signal.h b/include/asm-x86_64/signal.h
new file mode 100644
index 000000000000..643a20d73765
--- /dev/null
+++ b/include/asm-x86_64/signal.h
@@ -0,0 +1,213 @@
1#ifndef _ASMx8664_SIGNAL_H
2#define _ASMx8664_SIGNAL_H
3
4#ifndef __ASSEMBLY__
5#include <linux/types.h>
6#include <linux/linkage.h>
7#include <linux/time.h>
8
9/* Avoid too many header ordering problems. */
10struct siginfo;
11
12#ifdef __KERNEL__
13/* Most things should be clean enough to redefine this at will, if care
14 is taken to make libc match. */
15
16#define _NSIG 64
17#define _NSIG_BPW 64
18#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
19
20typedef unsigned long old_sigset_t; /* at least 32 bits */
21
22typedef struct {
23 unsigned long sig[_NSIG_WORDS];
24} sigset_t;
25
26
27struct pt_regs;
28asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
29
30
31#else
32/* Here we must cater to libcs that poke about in kernel headers. */
33
34#define NSIG 32
35typedef unsigned long sigset_t;
36
37#endif /* __KERNEL__ */
38#endif
39
40#define SIGHUP 1
41#define SIGINT 2
42#define SIGQUIT 3
43#define SIGILL 4
44#define SIGTRAP 5
45#define SIGABRT 6
46#define SIGIOT 6
47#define SIGBUS 7
48#define SIGFPE 8
49#define SIGKILL 9
50#define SIGUSR1 10
51#define SIGSEGV 11
52#define SIGUSR2 12
53#define SIGPIPE 13
54#define SIGALRM 14
55#define SIGTERM 15
56#define SIGSTKFLT 16
57#define SIGCHLD 17
58#define SIGCONT 18
59#define SIGSTOP 19
60#define SIGTSTP 20
61#define SIGTTIN 21
62#define SIGTTOU 22
63#define SIGURG 23
64#define SIGXCPU 24
65#define SIGXFSZ 25
66#define SIGVTALRM 26
67#define SIGPROF 27
68#define SIGWINCH 28
69#define SIGIO 29
70#define SIGPOLL SIGIO
71/*
72#define SIGLOST 29
73*/
74#define SIGPWR 30
75#define SIGSYS 31
76#define SIGUNUSED 31
77
78/* These should not be considered constants from userland. */
79#define SIGRTMIN 32
80#define SIGRTMAX _NSIG
81
82/*
83 * SA_FLAGS values:
84 *
85 * SA_ONSTACK indicates that a registered stack_t will be used.
86 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
87 * SA_RESTART flag to get restarting signals (which were the default long ago)
88 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
89 * SA_RESETHAND clears the handler when the signal is delivered.
90 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
91 * SA_NODEFER prevents the current signal from being masked in the handler.
92 *
93 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
94 * Unix names RESETHAND and NODEFER respectively.
95 */
96#define SA_NOCLDSTOP 0x00000001
97#define SA_NOCLDWAIT 0x00000002
98#define SA_SIGINFO 0x00000004
99#define SA_ONSTACK 0x08000000
100#define SA_RESTART 0x10000000
101#define SA_NODEFER 0x40000000
102#define SA_RESETHAND 0x80000000
103
104#define SA_NOMASK SA_NODEFER
105#define SA_ONESHOT SA_RESETHAND
106#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
107
108#define SA_RESTORER 0x04000000
109
110/*
111 * sigaltstack controls
112 */
113#define SS_ONSTACK 1
114#define SS_DISABLE 2
115
116#define MINSIGSTKSZ 2048
117#define SIGSTKSZ 8192
118
119#ifdef __KERNEL__
120
121/*
122 * These values of sa_flags are used only by the kernel as part of the
123 * irq handling routines.
124 *
125 * SA_INTERRUPT is also used by the irq handling routines.
126 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
127 */
128#define SA_PROBE SA_ONESHOT
129#define SA_SAMPLE_RANDOM SA_RESTART
130#define SA_SHIRQ 0x04000000
131#endif
132
133#define SIG_BLOCK 0 /* for blocking signals */
134#define SIG_UNBLOCK 1 /* for unblocking signals */
135#define SIG_SETMASK 2 /* for setting the signal mask */
136
137#ifndef __ASSEMBLY__
138/* Type of a signal handler. */
139typedef void __signalfn_t(int);
140typedef __signalfn_t __user *__sighandler_t;
141
142typedef void __restorefn_t(void);
143typedef __restorefn_t __user *__sigrestore_t;
144
145#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
146#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
147#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
148
149struct sigaction {
150 __sighandler_t sa_handler;
151 unsigned long sa_flags;
152 __sigrestore_t sa_restorer;
153 sigset_t sa_mask; /* mask last for extensibility */
154};
155
156struct k_sigaction {
157 struct sigaction sa;
158};
159
160typedef struct sigaltstack {
161 void __user *ss_sp;
162 int ss_flags;
163 size_t ss_size;
164} stack_t;
165
166#ifdef __KERNEL__
167#include <asm/sigcontext.h>
168
169#undef __HAVE_ARCH_SIG_BITOPS
170#if 0
171
172extern __inline__ void sigaddset(sigset_t *set, int _sig)
173{
174 __asm__("btsq %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
175}
176
177extern __inline__ void sigdelset(sigset_t *set, int _sig)
178{
179 __asm__("btrq %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
180}
181
182extern __inline__ int __const_sigismember(sigset_t *set, int _sig)
183{
184 unsigned long sig = _sig - 1;
185 return 1 & (set->sig[sig / _NSIG_BPW] >> (sig & ~(_NSIG_BPW-1)));
186}
187
188extern __inline__ int __gen_sigismember(sigset_t *set, int _sig)
189{
190 int ret;
191 __asm__("btq %2,%1\n\tsbbq %0,%0"
192 : "=r"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
193 return ret;
194}
195
196#define sigismember(set,sig) \
197 (__builtin_constant_p(sig) ? \
198 __const_sigismember((set),(sig)) : \
199 __gen_sigismember((set),(sig)))
200
201extern __inline__ int sigfindinword(unsigned long word)
202{
203 __asm__("bsfq %1,%0" : "=r"(word) : "rm"(word) : "cc");
204 return word;
205}
206#endif
207#endif
208
209#define ptrace_signal_deliver(regs, cookie) do { } while (0)
210
211#endif /* __KERNEL__ */
212
213#endif