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|
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@ KLIB_BUILD ?= $(KLIB)/build/
KERNEL_CONFIG := $(KLIB_BUILD)/.config
KERNEL_MAKEFILE := $(KLIB_BUILD)/Makefile
CONFIG_MD5 := $(shell md5sum $(KERNEL_CONFIG) 2>/dev/null | sed 's/\s.*//')
+STAMP_KERNEL_CONFIG := .kernel_config_md5_$(CONFIG_MD5)
export KLIB KLIB_BUILD BACKPORT_PWD KMODDIR KMODPATH_ARG
@@ -36,7 +37,8 @@ mrproper:
@rm -f .kernel_config_md5 Kconfig.versions Kconfig.kernel
@rm -f backport-include/backport/autoconf.h
-.DEFAULT:
+.SILENT: $(STAMP_KERNEL_CONFIG)
+$(STAMP_KERNEL_CONFIG):
@set -e ; test -f .local-symbols || ( \
echo "/--------------" ;\
echo "| You shouldn't run make in the backports tree, but only in" ;\
@@ -60,56 +62,60 @@ mrproper:
echo "| (that isn't currently running.)" ;\
echo "\\--" ;\
false)
- @set -e ; if [ "$$(cat .kernel_config_md5 2>/dev/null)" != "$(CONFIG_MD5)" ] ;\
- then \
- echo -n "Generating local configuration database from kernel ..." ;\
- grep -v -f .local-symbols $(KERNEL_CONFIG) | grep = | ( \
- while read l ; do \
- if [ "$${l:0:7}" != "CONFIG_" ] ; then \
- continue ;\
- fi ;\
- l=$${l:7} ;\
- n=$${l%%=*} ;\
- v=$${l#*=} ;\
- if [ "$$v" = "m" ] ; then \
- echo config $$n ;\
- echo ' tristate' ;\
- elif [ "$$v" = "y" ] ; then \
- echo config $$n ;\
- echo ' bool' ;\
- else \
- continue ;\
- fi ;\
- echo " default $$v" ;\
- echo "" ;\
- done \
- ) > Kconfig.kernel ;\
- kver=$$($(MAKE) --no-print-directory -C $(KLIB_BUILD) kernelversion | \
- sed 's/^\(\(3\|2\.6\)\.[0-9]\+\).*/\1/;t;d') ;\
- test "$$kver" != "" || echo "Kernel version parse failed!" ;\
- test "$$kver" != "" ;\
- kvers="$$(seq 14 39 | sed 's/^/2.6./')" ;\
- kvers="$$kvers $$(seq 0 99 | sed 's/^/3./')" ;\
- print=0 ;\
- for v in $$kvers ; do \
- if [ "$$print" = "1" ] ; then \
- echo config BACKPORT_KERNEL_$$(echo $$v | tr . _) ;\
- echo " def_bool y" ;\
- fi ;\
- if [ "$$v" = "$$kver" ] ; then print=1 ; fi ;\
- done > Kconfig.versions ;\
- # RHEL as well, sadly we need to grep for it ;\
- RHEL_MAJOR=$$(grep '^RHEL_MAJOR' $(KERNEL_MAKEFILE) | \
- sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
- RHEL_MINOR=$$(grep '^RHEL_MINOR' $(KERNEL_MAKEFILE) | \
- sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
- for v in $$(seq 0 $$RHEL_MINOR) ; do \
- echo config BACKPORT_RHEL_KERNEL_$${RHEL_MAJOR}_$$v ;\
- echo " def_bool y" ;\
- done >> Kconfig.versions ;\
- echo " done." ;\
- fi ;\
- echo "$(CONFIG_MD5)" > .kernel_config_md5
+ @rm -f .kernel_config_md5_*
+ @touch $@
+
+Kconfig.kernel: $(STAMP_KERNEL_CONFIG) .local-symbols
+ @printf "Generating local configuration database from kernel ..."
+ @grep -v -f .local-symbols $(KERNEL_CONFIG) | grep = | ( \
+ while read l ; do \
+ if [ "$${l:0:7}" != "CONFIG_" ] ; then \
+ continue ;\
+ fi ;\
+ l=$${l:7} ;\
+ n=$${l%%=*} ;\
+ v=$${l#*=} ;\
+ if [ "$$v" = "m" ] ; then \
+ echo config $$n ;\
+ echo ' tristate' ;\
+ elif [ "$$v" = "y" ] ; then \
+ echo config $$n ;\
+ echo ' bool' ;\
+ else \
+ continue ;\
+ fi ;\
+ echo " default $$v" ;\
+ echo "" ;\
+ done \
+ ) > $@
+ @echo " done."
+
+Kconfig.versions: Kconfig.kernel
+ @kver=$$($(MAKE) --no-print-directory -C $(KLIB_BUILD) kernelversion | \
+ sed 's/^\(\(3\|2\.6\)\.[0-9]\+\).*/\1/;t;d') ;\
+ test "$$kver" != "" || echo "Kernel version parse failed!" ;\
+ test "$$kver" != "" ;\
+ kvers="$$(seq 14 39 | sed 's/^/2.6./')" ;\
+ kvers="$$kvers $$(seq 0 99 | sed 's/^/3./')" ;\
+ print=0 ;\
+ for v in $$kvers ; do \
+ if [ "$$print" = "1" ] ; then \
+ echo config BACKPORT_KERNEL_$$(echo $$v | tr . _) ;\
+ echo " def_bool y" ;\
+ fi ;\
+ if [ "$$v" = "$$kver" ] ; then print=1 ; fi ;\
+ done > $@
+ @RHEL_MAJOR=$$(grep '^RHEL_MAJOR' $(KERNEL_MAKEFILE) | \
+ sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
+ RHEL_MINOR=$$(grep '^RHEL_MINOR' $(KERNEL_MAKEFILE) | \
+ sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
+ for v in $$(seq 0 $$RHEL_MINOR) ; do \
+ echo config BACKPORT_RHEL_KERNEL_$${RHEL_MAJOR}_$$v ;\
+ echo " def_bool y" ;\
+ done >> $@
+
+.DEFAULT:
+ @$(MAKE) Kconfig.versions
@$(MAKE) -f Makefile.real "$@"
else
--- a/Makefile.real
+++ b/Makefile.real
@@ -54,7 +54,7 @@ defconfig-%::
backport-include/backport/autoconf.h: .config Kconfig.versions Kconfig.kernel
@$(MAKE) oldconfig
- @echo -n "Building backport-include/backport/autoconf.h ..."
+ @printf "Building backport-include/backport/autoconf.h ..."
@grep -f .local-symbols .config | ( \
echo "#ifndef COMPAT_AUTOCONF_INCLUDED" ;\
echo "#define COMPAT_AUTOCONF_INCLUDED" ;\
@@ -75,7 +75,12 @@ backport-include/backport/autoconf.h: .c
esac ;\
done ;\
echo "#endif /* COMPAT_AUTOCONF_INCLUDED */" ;\
- ) > backport-include/backport/autoconf.h
+ ) > $@.new
+ @if cmp -s $@ $@.new; then \
+ rm -f $@.new; \
+ else \
+ mv $@.new $@; \
+ fi
@echo " done."
.PHONY: modules
|
