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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 /arch/arm/kernel/arthur.c
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 'arch/arm/kernel/arthur.c')
-rw-r--r--arch/arm/kernel/arthur.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/arm/kernel/arthur.c b/arch/arm/kernel/arthur.c
new file mode 100644
index 000000000000..a418dad6692c
--- /dev/null
+++ b/arch/arm/kernel/arthur.c
@@ -0,0 +1,91 @@
1/*
2 * linux/arch/arm/kernel/arthur.c
3 *
4 * Copyright (C) 1998, 1999, 2000, 2001 Philip Blundell
5 *
6 * Arthur personality
7 */
8
9/*
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 */
15
16#include <linux/module.h>
17#include <linux/personality.h>
18#include <linux/stddef.h>
19#include <linux/signal.h>
20#include <linux/init.h>
21
22#include <asm/ptrace.h>
23
24/* Arthur doesn't have many signals, and a lot of those that it does
25 have don't map easily to any Linux equivalent. Never mind. */
26
27#define ARTHUR_SIGABRT 1
28#define ARTHUR_SIGFPE 2
29#define ARTHUR_SIGILL 3
30#define ARTHUR_SIGINT 4
31#define ARTHUR_SIGSEGV 5
32#define ARTHUR_SIGTERM 6
33#define ARTHUR_SIGSTAK 7
34#define ARTHUR_SIGUSR1 8
35#define ARTHUR_SIGUSR2 9
36#define ARTHUR_SIGOSERROR 10
37
38static unsigned long arthur_to_linux_signals[32] = {
39 0, 1, 2, 3, 4, 5, 6, 7,
40 8, 9, 10, 11, 12, 13, 14, 15,
41 16, 17, 18, 19, 20, 21, 22, 23,
42 24, 25, 26, 27, 28, 29, 30, 31
43};
44
45static unsigned long linux_to_arthur_signals[32] = {
46 0, -1, ARTHUR_SIGINT, -1,
47 ARTHUR_SIGILL, 5, ARTHUR_SIGABRT, 7,
48 ARTHUR_SIGFPE, 9, ARTHUR_SIGUSR1, ARTHUR_SIGSEGV,
49 ARTHUR_SIGUSR2, 13, 14, ARTHUR_SIGTERM,
50 16, 17, 18, 19,
51 20, 21, 22, 23,
52 24, 25, 26, 27,
53 28, 29, 30, 31
54};
55
56static void arthur_lcall7(int nr, struct pt_regs *regs)
57{
58 struct siginfo info;
59 info.si_signo = SIGSWI;
60 info.si_errno = nr;
61 /* Bounce it to the emulator */
62 send_sig_info(SIGSWI, &info, current);
63}
64
65static struct exec_domain arthur_exec_domain = {
66 .name = "Arthur",
67 .handler = arthur_lcall7,
68 .pers_low = PER_RISCOS,
69 .pers_high = PER_RISCOS,
70 .signal_map = arthur_to_linux_signals,
71 .signal_invmap = linux_to_arthur_signals,
72 .module = THIS_MODULE,
73};
74
75/*
76 * We could do with some locking to stop Arthur being removed while
77 * processes are using it.
78 */
79
80static int __init arthur_init(void)
81{
82 return register_exec_domain(&arthur_exec_domain);
83}
84
85static void __exit arthur_exit(void)
86{
87 unregister_exec_domain(&arthur_exec_domain);
88}
89
90module_init(arthur_init);
91module_exit(arthur_exit);