diff --git a/Kbuild b/Kbuild
new file mode 100644
index 0000000000000000000000000000000000000000..197ece85034ba8ad983af531597b6b40610aa2c6
--- /dev/null
+++ b/Kbuild
@@ -0,0 +1,41 @@
+#
+# Kbuild for top-level directory of the kernel
+# This file takes care of the following:
+# 1) Generate asm-offsets.h
+
+#####
+# 1) Generate asm-offsets.h
+#
+
+offsets-file := include/asm-$(ARCH)/asm-offsets.h
+
+always := $(offsets-file)
+targets := $(offsets-file)
+targets += arch/$(ARCH)/kernel/asm-offsets.s
+
+quiet_cmd_offsets = GEN $@
+define cmd_offsets
+ cat $< | \
+ (set -e; \
+ echo "#ifndef __ASM_OFFSETS_H__"; \
+ echo "#define __ASM_OFFSETS_H__"; \
+ echo "/*"; \
+ echo " * DO NOT MODIFY."; \
+ echo " *"; \
+ echo " * This file was generated by $(srctree)/Kbuild"; \
+ echo " *"; \
+ echo " */"; \
+ echo ""; \
+ sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
+ echo ""; \
+ echo "#endif" ) > $@
+endef
+
+# We use internal kbuild rules to avoid the "is up to date" message from make
+arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE
+ $(Q)mkdir -p $(dir $@)
+ $(call if_changed_dep,cc_s_c)
+
+$(srctree)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
+ $(call cmd,offsets)
+
diff --git a/Makefile b/Makefile
index 63e5c9f0bc7ad9776a4f9a33e07600b0085c5672..2402430c87e663d99841f84980039c999af3d4d6 100644
--- a/Makefile
+++ b/Makefile
@@ -776,14 +776,14 @@ $(vmlinux-dirs): prepare-all scripts
# A multi level approach is used. prepare1 is updated first, then prepare0.
# prepare-all is the collection point for the prepare targets.
-.PHONY: prepare-all prepare prepare0 prepare1 prepare2
+.PHONY: prepare-all prepare prepare0 prepare1 prepare2 prepare3
-# prepare2 is used to check if we are building in a separate output directory,
+# prepare3 is used to check if we are building in a separate output directory,
# and if so do:
# 1) Check that make has not been executed in the kernel src $(srctree)
# 2) Create the include2 directory, used for the second asm symlink
-prepare2:
+prepare3:
ifneq ($(KBUILD_SRC),)
@echo ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config ]; then \
@@ -795,18 +795,21 @@ ifneq ($(KBUILD_SRC),)
$(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm
endif
-# prepare1 creates a makefile if using a separate output directory
-prepare1: prepare2 outputmakefile
+# prepare2 creates a makefile if using a separate output directory
+prepare2: prepare3 outputmakefile
-prepare0: prepare1 include/linux/version.h include/asm \
+prepare1: prepare2 include/linux/version.h include/asm \
include/config/MARKER
ifneq ($(KBUILD_MODULES),)
$(Q)rm -rf $(MODVERDIR)
$(Q)mkdir -p $(MODVERDIR)
endif
+prepare0: prepare prepare1 FORCE
+ $(Q)$(MAKE) $(build)=$(srctree)
+
# All the preparing..
-prepare-all: prepare0 prepare
+prepare-all: prepare0
# Leave this as default for preprocessing vmlinux.lds.S, which is now
# done in arch/$(ARCH)/kernel/Makefile
@@ -949,26 +952,6 @@ modules modules_install: FORCE
endif # CONFIG_MODULES
-# Generate asm-offsets.h
-# ---------------------------------------------------------------------------
-
-define filechk_gen-asm-offsets
- (set -e; \
- echo "#ifndef __ASM_OFFSETS_H__"; \
- echo "#define __ASM_OFFSETS_H__"; \
- echo "/*"; \
- echo " * DO NOT MODIFY."; \
- echo " *"; \
- echo " * This file was generated by arch/$(ARCH)/Makefile"; \
- echo " *"; \
- echo " */"; \
- echo ""; \
- sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
- echo ""; \
- echo "#endif" )
-endef
-
-
###
# Cleaning is done on three levels.
# make clean Delete most generated files
@@ -991,7 +974,7 @@ MRPROPER_FILES += .config .config.old include/asm .version \
#
clean: rm-dirs := $(CLEAN_DIRS)
clean: rm-files := $(CLEAN_FILES)
-clean-dirs := $(addprefix _clean_,$(vmlinux-alldirs))
+clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
.PHONY: $(clean-dirs) clean archclean
$(clean-dirs):
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index bf7c9ba709f32d97f8ae5d0a1e73638252f21979..09951990a6226b0a422c5812c6af7dbe67ef18a1 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -156,15 +156,6 @@ install: vmlinux
install kernel_install:
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
-prepare: include/asm-$(ARCH)/asm_offsets.h
-CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h
-
-arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
- include/config/MARKER
-
-include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
- $(call filechk,gen-asm-offsets)
-
archclean:
$(Q)$(MAKE) $(clean)=arch/i386/boot
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index 0480ca9e9e577a989d96e71e012b8b6e4f8e0c1d..e437fb367498c029ea21f5a7d5495d6b965a70cd 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -17,7 +17,7 @@
#include <asm/desc.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
-#include <asm/asm_offsets.h>
+#include <asm/asm-offsets.h>
#include <asm/setup.h>
/*
diff --git a/arch/i386/kernel/vsyscall-sigreturn.S b/arch/i386/kernel/vsyscall-sigreturn.S
index 68afa50dd7cf79bf0d5eb021115c59e03fee692f..fadb5bc3c37431cfda60e19d7f4e477e0126958a 100644
--- a/arch/i386/kernel/vsyscall-sigreturn.S
+++ b/arch/i386/kernel/vsyscall-sigreturn.S
@@ -7,7 +7,7 @@
*/
#include <asm/unistd.h>
-#include <asm/asm_offsets.h>
+#include <asm/asm-offsets.h>
/* XXX
diff --git a/arch/i386/kernel/vsyscall.lds.S b/arch/i386/kernel/vsyscall.lds.S
index a7977707c8e5098455b56ed9c9463c124ad6e883..98699ca6e52d7b2febba30a086741a4f663da426 100644
--- a/arch/i386/kernel/vsyscall.lds.S
+++ b/arch/i386/kernel/vsyscall.lds.S
@@ -3,7 +3,7 @@
* object prelinked to its virtual address, and with only one read-only
* segment (that fits in one page). This script controls its layout.
*/
-#include <asm/asm_offsets.h>
+#include <asm/asm-offsets.h>
SECTIONS
{
diff --git a/arch/i386/power/swsusp.S b/arch/i386/power/swsusp.S
index c4105286ff26fc4a8df8a1339c970b99d7e308a8..c893b897217fa597ce6c43692eb5630f171a1e25 100644
--- a/arch/i386/power/swsusp.S
+++ b/arch/i386/power/swsusp.S
@@ -12,7 +12,7 @@
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/page.h>
-#include <asm/asm_offsets.h>
+#include <asm/asm-offsets.h>
.text
diff --git a/include/asm-i386/thread_info.h b/include/asm-i386/thread_info.h
index e2cb9fa6f563db415e494dae49b0173fa3e2b7c6..8fbf791651bf84cfaf8e2bbb3396e76b13c87517 100644
--- a/include/asm-i386/thread_info.h
+++ b/include/asm-i386/thread_info.h
@@ -48,7 +48,7 @@ struct thread_info {
#else /* !__ASSEMBLY__ */
-#include <asm/asm_offsets.h>
+#include <asm/asm-offsets.h>
#endif