aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/kernel/arthur.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/kernel/arthur.c
downloadlinux-stericsson-2.6.12-rc2.tar.gz
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 @@
+/*
+ * 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);