/* * linux/arch/arm/kernel/arthur.c * * Copyright (C) 1998, 1999, 2000, 2001 Philip Blundell * * Arthur personality */ /* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/module.h> #include <linux/personality.h> #include <linux/stddef.h> #include <linux/signal.h> #include <linux/init.h> #include <asm/ptrace.h> /* Arthur doesn't have many signals, and a lot of those that it does have don't map easily to any Linux equivalent. Never mind. */ #define ARTHUR_SIGABRT 1 #define ARTHUR_SIGFPE 2 #define ARTHUR_SIGILL 3 #define ARTHUR_SIGINT 4 #define ARTHUR_SIGSEGV 5 #define ARTHUR_SIGTERM 6 #define ARTHUR_SIGSTAK 7 #define ARTHUR_SIGUSR1 8 #define ARTHUR_SIGUSR2 9 #define ARTHUR_SIGOSERROR 10 static unsigned long arthur_to_linux_signals[32] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; static unsigned long linux_to_arthur_signals[32] = { 0, -1, ARTHUR_SIGINT, -1, ARTHUR_SIGILL, 5, ARTHUR_SIGABRT, 7, ARTHUR_SIGFPE, 9, ARTHUR_SIGUSR1, ARTHUR_SIGSEGV, ARTHUR_SIGUSR2, 13, 14, ARTHUR_SIGTERM, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; static void arthur_lcall7(int nr, struct pt_regs *regs) { struct siginfo info; info.si_signo = SIGSWI; info.si_errno = nr; /* Bounce it to the emulator */ send_sig_info(SIGSWI, &info, current); } static struct exec_domain arthur_exec_domain = { .name = "Arthur", .handler = arthur_lcall7, .pers_low = PER_RISCOS, .pers_high = PER_RISCOS, .signal_map = arthur_to_linux_signals, .signal_invmap = linux_to_arthur_signals, .module = THIS_MODULE, }; /* * We could do with some locking to stop Arthur being removed while * processes are using it. */ static int __init arthur_init(void) { return register_exec_domain(&arthur_exec_domain); } static void __exit arthur_exit(void) { unregister_exec_domain(&arthur_exec_domain); } module_init(arthur_init); module_exit(arthur_exit);