1 files changed, 22 insertions, 13 deletions

diff --git a/Makefile b/Makefile
index 673148e07603..c3a727126d26 100644
--- a/Makefile
+++ b/Makefile
@@ -106,12 +106,13 @@ KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
 $(if $(KBUILD_OUTPUT),, \
      $(error output directory "$(saved-output)" does not exist))
 
-.PHONY: $(MAKECMDGOALS)
+.PHONY: $(MAKECMDGOALS) cdbuilddir
+$(MAKECMDGOALS) _all: cdbuilddir
 
-$(filter-out _all,$(MAKECMDGOALS)) _all:
+cdbuilddir:
         $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
         KBUILD_SRC=$(CURDIR) \
-        KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
+        KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $(MAKECMDGOALS)
 
 # Leave processing to above invocation of make
 skip-makefile := 1
@@ -262,6 +263,13 @@ export quiet Q KBUILD_VERBOSE
 # cc support functions to be used (only) in arch/$(ARCH)/Makefile
 # See documentation in Documentation/kbuild/makefiles.txt
 
+# as-option
+# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,)
+
+as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \
+             -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \
+             else echo "$(2)"; fi ;)
+
 # cc-option
 # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
 
@@ -337,8 +345,9 @@ AFLAGS		:= -D__ASSEMBLY__
 
 # Read KERNELRELEASE from .kernelrelease (if it exists)
 KERNELRELEASE = $(shell cat .kernelrelease 2> /dev/null)
+KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
-export  VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \
+export  VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \
         ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
         CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
         HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
@@ -433,6 +442,7 @@ export KBUILD_DEFCONFIG
 config %config: scripts_basic outputmakefile FORCE
         $(Q)mkdir -p include/linux
         $(Q)$(MAKE) $(build)=scripts/kconfig $@
+        $(Q)$(MAKE) .kernelrelease
 
 else
 # ===========================================================================
@@ -542,7 +552,7 @@ export	INSTALL_PATH ?= /boot
 # makefile but the arguement can be passed to make if needed.
 #
 
-MODLIB  := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
+MODLIB  = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
 export MODLIB
 
 
@@ -783,12 +793,10 @@ endif
 localver-full = $(localver)$(localver-auto)
 
 # Store (new) KERNELRELASE string in .kernelrelease
-kernelrelease = \
-       $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(localver-full)
+kernelrelease = $(KERNELVERSION)$(localver-full)
 .kernelrelease: FORCE
-        $(Q)rm -f .kernelrelease
-        $(Q)echo $(kernelrelease) > .kernelrelease
-        $(Q)echo "  Building kernel $(kernelrelease)"
+        $(Q)rm -f $@
+        $(Q)echo $(kernelrelease) > $@
 
 
 # Things we need to do before we recursively start building the kernel
@@ -898,7 +906,7 @@ define filechk_version.h
         )
 endef
 
-include/linux/version.h: $(srctree)/Makefile FORCE
+include/linux/version.h: $(srctree)/Makefile .config FORCE
         $(call filechk,version.h)
 
 # ---------------------------------------------------------------------------
@@ -1301,9 +1309,10 @@ checkstack:
         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
 
 kernelrelease:
-        @echo $(KERNELRELEASE)
+        $(if $(wildcard .kernelrelease), $(Q)echo $(KERNELRELEASE), \
+        $(error kernelrelease not valid - run 'make *config' to update it))
 kernelversion:
-        @echo $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
+        @echo $(KERNELVERSION)
 
 # FIXME Should go into a make.lib or something 
 # ===========================================================================