powerpc: Merge xmon

The merged version follows the ppc64 version pretty closely mostly,
and in fact ARCH=ppc64 now uses the arch/powerpc/xmon version.
The main difference for ppc64 is that the 'p' command to call
show_state (which was always pretty dodgy) has been replaced by
the ppc32 'p' command, which calls a given procedure (so in fact
the old 'p' command behaviour can be achieved with 'p $show_state').

Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
new file mode 100644
index 0000000..79a784f
--- /dev/null
+++ b/arch/powerpc/xmon/Makefile
@@ -0,0 +1,11 @@
+# Makefile for xmon
+
+ifdef CONFIG_PPC64
+EXTRA_CFLAGS += -mno-minimal-toc
+endif
+
+obj-$(CONFIG_8xx)	+= start_8xx.o
+obj-$(CONFIG_6xx)	+= start_32.o
+obj-$(CONFIG_4xx)	+= start_32.o
+obj-$(CONFIG_PPC64)	+= start_64.o
+obj-y			+= xmon.o ppc-dis.o ppc-opc.o subr_prf.o setjmp.o