Sam460ex: Add a Linux-type kernel entry point

* the onboard U-Booot and 2nd-stage loader only know a few OS types,
we'll try faking Linux there.

headers/private/system/arch/ppc/asm_defs.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2008, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef SYSTEM_ARCH_X86_ASM_DEFS_H
+#define SYSTEM_ARCH_X86_ASM_DEFS_H
+
+
+#define SYMBOL(name)			.global name; name
+#define SYMBOL_END(name)		1: .size name, 1b - name
+#define STATIC_FUNCTION(name)	.type name, @function; name
+#define FUNCTION(name)			.global name; .type name, @function; name
+#define FUNCTION_END(name)		1: .size name, 1b - name
+
+
+#endif	/* SYSTEM_ARCH_X86_ASM_DEFS_H */
+