Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Tim Schmielau | 4e57b68 | 2005-10-30 15:03:48 -0800 | [diff] [blame] | 21 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | |
| 23 | #include <asm/ptrace.h> |
| 24 | |
| 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. */ |
| 27 | |
| 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 |
| 38 | |
| 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 |
| 44 | }; |
| 45 | |
| 46 | static unsigned long linux_to_arthur_signals[32] = { |
| 47 | 0, -1, ARTHUR_SIGINT, -1, |
| 48 | ARTHUR_SIGILL, 5, ARTHUR_SIGABRT, 7, |
| 49 | ARTHUR_SIGFPE, 9, ARTHUR_SIGUSR1, ARTHUR_SIGSEGV, |
| 50 | ARTHUR_SIGUSR2, 13, 14, ARTHUR_SIGTERM, |
| 51 | 16, 17, 18, 19, |
| 52 | 20, 21, 22, 23, |
| 53 | 24, 25, 26, 27, |
| 54 | 28, 29, 30, 31 |
| 55 | }; |
| 56 | |
| 57 | static void arthur_lcall7(int nr, struct pt_regs *regs) |
| 58 | { |
| 59 | struct siginfo info; |
| 60 | info.si_signo = SIGSWI; |
| 61 | info.si_errno = nr; |
| 62 | /* Bounce it to the emulator */ |
| 63 | send_sig_info(SIGSWI, &info, current); |
| 64 | } |
| 65 | |
| 66 | static struct exec_domain arthur_exec_domain = { |
| 67 | .name = "Arthur", |
| 68 | .handler = arthur_lcall7, |
| 69 | .pers_low = PER_RISCOS, |
| 70 | .pers_high = PER_RISCOS, |
| 71 | .signal_map = arthur_to_linux_signals, |
| 72 | .signal_invmap = linux_to_arthur_signals, |
| 73 | .module = THIS_MODULE, |
| 74 | }; |
| 75 | |
| 76 | /* |
| 77 | * We could do with some locking to stop Arthur being removed while |
| 78 | * processes are using it. |
| 79 | */ |
| 80 | |
| 81 | static int __init arthur_init(void) |
| 82 | { |
| 83 | return register_exec_domain(&arthur_exec_domain); |
| 84 | } |
| 85 | |
| 86 | static void __exit arthur_exit(void) |
| 87 | { |
| 88 | unregister_exec_domain(&arthur_exec_domain); |
| 89 | } |
| 90 | |
| 91 | module_init(arthur_init); |
| 92 | module_exit(arthur_exit); |
Adrian Bunk | 7cc09c2 | 2008-03-31 12:08:16 +0300 | [diff] [blame] | 93 | |
| 94 | MODULE_LICENSE("GPL"); |