kbuild: move asm-offsets.h to include/generated

The simplest method was to add an extra asm-offsets.h
file in arch/$ARCH/include/asm that references the generated file.

We can now migrate the architectures one-by-one to reference
the generated file direct - and when done we can delete the
temporary arch/$ARCH/include/asm/asm-offsets.h file.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Michal Marek <mmarek@suse.cz>

.gitignore

@@ -46,7 +46,6 @@ Module.symvers
 # Generated include files
 #
 include/asm
-include/asm-*/asm-offsets.h
 include/config
 include/linux/autoconf.h
 include/linux/compile.h

Kbuild

@@ -43,7 +43,7 @@ $(obj)/$(bounds-file): kernel/bounds.s Kbuild
 # 2) Generate asm-offsets.h
 #
 
-offsets-file := include/asm/asm-offsets.h
+offsets-file := include/generated/asm-offsets.h
 
 always  += $(offsets-file)
 targets += $(offsets-file)

Makefile

@@ -1197,7 +1197,6 @@ MRPROPER_DIRS  += include/config include2 usr/include include/generated
 MRPROPER_FILES += .config .config.old include/asm .version .old_version \
                   include/linux/autoconf.h include/linux/version.h      \
                   include/linux/utsrelease.h                            \
-                  include/asm*/asm-offsets.h                            \
 		  Module.symvers Module.markers tags TAGS cscope*
 
 # clean - Delete most, but leave enough to build external modules

arch/alpha/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/arm/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/avr32/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/blackfin/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/cris/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/frv/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/h8300/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/ia64/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/m68k/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/microblaze/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/mips/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/mn10300/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/parisc/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/powerpc/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/s390/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/sh/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/sparc/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/um/Makefile

@@ -149,6 +149,6 @@ $(SHARED_HEADERS)/user_constants.h: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s
 
 $(SHARED_HEADERS)/kern_constants.h:
 	$(Q)mkdir -p $(dir $@)
-	$(Q)echo '#include "../../../../include/asm/asm-offsets.h"' >$@
+	$(Q)echo '#include "../../../../include/generated/asm-offsets.h"' >$@
 
 export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH

arch/um/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/x86/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>

arch/xtensa/include/asm/asm-offsets.h

+#include <generated/asm-offsets.h>