1 files changed, 37 insertions, 0 deletions

diff --git a/arch/mn10300/kernel/kernel_execve.S b/arch/mn10300/kernel/kernel_execve.S
new file mode 100644
index 000000000000..86039f105268
--- /dev/null
+++ b/arch/mn10300/kernel/kernel_execve.S
@@ -0,0 +1,37 @@
+/* MN10300 In-kernel program execution
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/linkage.h>
+#include <asm/unistd.h>
+
+###############################################################################
+#
+# Do a system call from kernel instead of calling sys_execve so we end up with
+# proper pt_regs.
+#
+# int kernel_execve(const char *filename, char *const argv[],
+#                   char *const envp[])
+#
+# On entry: D0/D1/8(SP): arguments to function
+# On return: D0: syscall return.
+#
+###############################################################################
+        .globl          kernel_execve
+        .type           kernel_execve,@function
+kernel_execve:
+        mov             a3,a1
+        mov             d0,a0
+        mov             (12,sp),a3
+        mov             +__NR_execve,d0
+        syscall         0
+        mov             a1,a3
+        rets
+
+        .size           kernel_execve,.-kernel_execve