2 files changed, 98 insertions, 0 deletions

diff --git a/arch/openrisc/kernel/init_task.c b/arch/openrisc/kernel/init_task.c
new file mode 100644
index 00000000000..45744a38492
--- /dev/null
+++ b/arch/openrisc/kernel/init_task.c
@@ -0,0 +1,41 @@
+/*
+ * OpenRISC init_task.c
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others.  All original copyrights apply as per the original source
+ * declaration.
+ *
+ * Modifications for the OpenRISC architecture:
+ * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ *
+ *      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/init_task.h>
+#include <linux/mqueue.h>
+
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+
+/*
+ * Initial thread structure.
+ *
+ * We need to make sure that this is THREAD_SIZE aligned due to the
+ * way process stacks are handled. This is done by having a special
+ * "init_task" linker map entry..
+ */
+union thread_union init_thread_union __init_task_data = {
+        INIT_THREAD_INFO(init_task)
+};
+
+/*
+ * Initial task structure.
+ *
+ * All other task structs will be allocated on slabs in fork.c
+ */
+struct task_struct init_task = INIT_TASK(init_task);
+EXPORT_SYMBOL(init_task);
diff --git a/arch/openrisc/kernel/sys_or32.c b/arch/openrisc/kernel/sys_or32.c
new file mode 100644
index 00000000000..57060084c0c
--- /dev/null
+++ b/arch/openrisc/kernel/sys_or32.c
@@ -0,0 +1,57 @@
+/*
+ * OpenRISC sys_or32.c
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others.  All original copyrights apply as per the original source
+ * declaration.
+ *
+ * Modifications for the OpenRISC architecture:
+ * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ *
+ *      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.
+ *
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on some platforms.
+ * Since we don't have to do any backwards compatibility, our
+ * versions are done in the most "normal" way possible.
+ */
+
+#include <linux/errno.h>
+#include <linux/syscalls.h>
+#include <linux/mm.h>
+
+#include <asm/syscalls.h>
+
+/* These are secondary entry points as the primary entry points are defined in
+ * entry.S where we add the 'regs' parameter value
+ */
+
+asmlinkage long _sys_clone(unsigned long clone_flags, unsigned long newsp,
+                           int __user *parent_tid, int __user *child_tid,
+                           struct pt_regs *regs)
+{
+        long ret;
+
+        /* FIXME: Is alignment necessary? */
+        /* newsp = ALIGN(newsp, 4); */
+
+        if (!newsp)
+                newsp = regs->sp;
+
+        ret = do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
+
+        return ret;
+}
+
+asmlinkage int _sys_fork(struct pt_regs *regs)
+{
+#ifdef CONFIG_MMU
+        return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
+#else
+        return -EINVAL;
+#endif
+}