2 * linux/arch/arm/kernel/arthur.c
4 * Copyright (C) 1998, 1999, 2000, 2001 Philip Blundell
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.
16 #include <linux/module.h>
17 #include <linux/personality.h>
18 #include <linux/stddef.h>
19 #include <linux/signal.h>
20 #include <linux/sched.h>
21 #include <linux/init.h>
23 #include <asm/ptrace.h>
25 /* Arthur doesn't have many signals, and a lot of those that it does
26 have don't map easily to any Linux equivalent. Never mind. */
28 #define ARTHUR_SIGABRT 1
29 #define ARTHUR_SIGFPE 2
30 #define ARTHUR_SIGILL 3
31 #define ARTHUR_SIGINT 4
32 #define ARTHUR_SIGSEGV 5
33 #define ARTHUR_SIGTERM 6
34 #define ARTHUR_SIGSTAK 7
35 #define ARTHUR_SIGUSR1 8
36 #define ARTHUR_SIGUSR2 9
37 #define ARTHUR_SIGOSERROR 10
39 static unsigned long arthur_to_linux_signals[32] = {
40 0, 1, 2, 3, 4, 5, 6, 7,
41 8, 9, 10, 11, 12, 13, 14, 15,
42 16, 17, 18, 19, 20, 21, 22, 23,
43 24, 25, 26, 27, 28, 29, 30, 31
47 * Linux to Arthur signal map.
49 static unsigned long arthur_invmap[32] = {
52 [SIGINT] = ARTHUR_SIGINT,
54 [SIGILL] = ARTHUR_SIGILL,
56 [SIGABRT] = ARTHUR_SIGABRT,
58 [SIGFPE] = ARTHUR_SIGFPE,
60 [SIGUSR1] = ARTHUR_SIGUSR1,
61 [SIGSEGV] = ARTHUR_SIGSEGV,
62 [SIGUSR2] = ARTHUR_SIGUSR2,
65 [SIGTERM] = ARTHUR_SIGTERM,
84 static void arthur_lcall7(int nr, struct pt_regs *regs)
88 info.si_signo = SIGSWI;
90 /* Bounce it to the emulator */
91 send_sig_info(SIGSWI, &info, current);
94 static struct exec_domain arthur_exec_domain = {
95 .name = "Arthur", /* name */
96 .handler = arthur_lcall7,
97 .pers_low = PER_RISCOS,
98 .pers_high = PER_RISCOS,
99 .signal_map = arthur_to_linux_signals,
100 .signal_invmap = arthur_invmap,
101 .module = THIS_MODULE,
105 * We could do with some locking to stop Arthur being removed while
106 * processes are using it.
109 static int __init arthur_init(void)
111 return register_exec_domain(&arthur_exec_domain);
114 static void __exit arthur_exit(void)
116 unregister_exec_domain(&arthur_exec_domain);
119 module_init(arthur_init);
120 module_exit(arthur_exit);
122 MODULE_AUTHOR("Philip Blundell");
123 MODULE_LICENSE("GPL");