kbuild: cris use generic asm-offsets.h support

Cris has a dedicated asm-offsets.c file per subarchitecture.
So a symlink is created to put the desired asm-offsets.c file
in $(ARCH)/kernel
This is absolutely not good practice, but it was the trick
used in the rest of the cris code.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

arch/cris/Makefile

@@ -107,8 +107,7 @@ archclean:
 	rm -f timage vmlinux.bin decompress.bin rescue.bin cramfs.img
 	rm -rf $(LD_SCRIPT).tmp
 
-prepare: $(SRC_ARCH)/.links $(srctree)/include/asm-$(ARCH)/.arch \
-	 include/asm-$(ARCH)/$(SARCH)/offset.h
+prepare: $(SRC_ARCH)/.links $(srctree)/include/asm-$(ARCH)/.arch
 
 # Create some links to make all tools happy
 $(SRC_ARCH)/.links:
@@ -120,6 +119,7 @@ $(SRC_ARCH)/.links:
 	@ln -sfn $(SRC_ARCH)/$(SARCH)/lib $(SRC_ARCH)/lib
 	@ln -sfn $(SRC_ARCH)/$(SARCH) $(SRC_ARCH)/arch
 	@ln -sfn $(SRC_ARCH)/$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S
+	@ln -sfn $(SRC_ARCH)/$(SARCH)/asm-offsets.c $(SRC_ARCH)/kernel/asm-offsets.c
 	@touch $@
 
 # Create link to sub arch includes
@@ -128,9 +128,3 @@ $(srctree)/include/asm-$(ARCH)/.arch: $(wildcard include/config/arch/*.h)
 	@rm -f include/asm-$(ARCH)/arch
 	@ln -sf $(srctree)/include/asm-$(ARCH)/$(SARCH) $(srctree)/include/asm-$(ARCH)/arch
 	@touch $@
-
-arch/$(ARCH)/$(SARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
-					include/config/MARKER
-
-include/asm-$(ARCH)/$(SARCH)/offset.h: arch/$(ARCH)/$(SARCH)/kernel/asm-offsets.s
-	$(call filechk,gen-asm-offsets)

arch/cris/arch-v10/kernel/entry.S

@@ -270,7 +270,7 @@
 #include <asm/arch/sv_addr_ag.h>
 #include <asm/errno.h>
 #include <asm/thread_info.h>
-#include <asm/arch/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 

arch/cris/arch-v32/kernel/entry.S

@@ -23,7 +23,7 @@
 #include <asm/unistd.h>
 #include <asm/errno.h>
 #include <asm/thread_info.h>
-#include <asm/arch/offset.h>
+#include <asm/asm-offsets.h>
 
 #include <asm/arch/hwregs/asm/reg_map_asm.h>
 #include <asm/arch/hwregs/asm/intr_vect_defs_asm.h>