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167 lines
5.5 KiB
167 lines
5.5 KiB
--- a/Makefile
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+++ b/Makefile
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@@ -5,7 +5,7 @@
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ifeq ($(KERNELRELEASE),)
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MAKEFLAGS += --no-print-directory
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-SHELL := /bin/bash
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+SHELL := /usr/bin/env bash
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BACKPORT_DIR := $(shell pwd)
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KMODDIR ?= updates
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@@ -19,6 +19,7 @@ KLIB_BUILD ?= $(KLIB)/build/
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KERNEL_CONFIG := $(KLIB_BUILD)/.config
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KERNEL_MAKEFILE := $(KLIB_BUILD)/Makefile
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CONFIG_MD5 := $(shell md5sum $(KERNEL_CONFIG) 2>/dev/null | sed 's/\s.*//')
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+STAMP_KERNEL_CONFIG := .kernel_config_md5_$(CONFIG_MD5)
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export KLIB KLIB_BUILD BACKPORT_DIR KMODDIR KMODPATH_ARG
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@@ -36,7 +37,8 @@ mrproper:
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@rm -f .kernel_config_md5 Kconfig.versions Kconfig.kernel
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@rm -f backport-include/backport/autoconf.h
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-.DEFAULT:
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+.SILENT: $(STAMP_KERNEL_CONFIG)
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+$(STAMP_KERNEL_CONFIG):
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@set -e ; test -f local-symbols || ( \
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echo "/--------------" ;\
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echo "| You shouldn't run make in the backports tree, but only in" ;\
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@@ -60,57 +62,61 @@ mrproper:
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echo "| (that isn't currently running.)" ;\
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echo "\\--" ;\
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false)
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- @set -e ; if [ "$$(cat .kernel_config_md5 2>/dev/null)" != "$(CONFIG_MD5)" ] ;\
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- then \
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- echo -n "Generating local configuration database from kernel ..." ;\
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- grep -v -f local-symbols $(KERNEL_CONFIG) | grep = | ( \
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- while read l ; do \
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- if [ "$${l:0:7}" != "CONFIG_" ] ; then \
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- continue ;\
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- fi ;\
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- l=$${l:7} ;\
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- n=$${l%%=*} ;\
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- v=$${l#*=} ;\
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- if [ "$$v" = "m" ] ; then \
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- echo config $$n ;\
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- echo ' tristate' ;\
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- elif [ "$$v" = "y" ] ; then \
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- echo config $$n ;\
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- echo ' bool' ;\
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- else \
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- continue ;\
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- fi ;\
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- echo " default $$v" ;\
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- echo "" ;\
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- done \
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- ) > Kconfig.kernel ;\
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- kver=$$($(MAKE) --no-print-directory -C $(KLIB_BUILD) kernelversion | \
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- sed 's/^\(\([3-4]\|2\.6\)\.[0-9]\+\).*/\1/;t;d') ;\
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- test "$$kver" != "" || echo "Kernel version parse failed!" ;\
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- test "$$kver" != "" ;\
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- kvers="$$(seq 14 39 | sed 's/^/2.6./')" ;\
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- kvers="$$kvers $$(seq 0 19 | sed 's/^/3./')" ;\
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- kvers="$$kvers $$(seq 0 99 | sed 's/^/4./')" ;\
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- print=0 ;\
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- for v in $$kvers ; do \
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- if [ "$$print" = "1" ] ; then \
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- echo config KERNEL_$$(echo $$v | tr . _) ;\
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- echo " def_bool y" ;\
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- fi ;\
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- if [ "$$v" = "$$kver" ] ; then print=1 ; fi ;\
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- done > Kconfig.versions ;\
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- # RHEL as well, sadly we need to grep for it ;\
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- RHEL_MAJOR=$$(grep '^RHEL_MAJOR' $(KERNEL_MAKEFILE) | \
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- sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
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- RHEL_MINOR=$$(grep '^RHEL_MINOR' $(KERNEL_MAKEFILE) | \
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- sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
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- for v in $$(seq 0 $$RHEL_MINOR) ; do \
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- echo config BACKPORT_RHEL_KERNEL_$${RHEL_MAJOR}_$$v ;\
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- echo " def_bool y" ;\
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- done >> Kconfig.versions ;\
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- echo " done." ;\
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- fi ;\
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- echo "$(CONFIG_MD5)" > .kernel_config_md5
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+ @rm -f .kernel_config_md5_*
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+ @touch $@
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+
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+Kconfig.kernel: $(STAMP_KERNEL_CONFIG) local-symbols
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+ @printf "Generating local configuration database from kernel ..."
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+ @grep -v -f local-symbols $(KERNEL_CONFIG) | grep = | ( \
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+ while read l ; do \
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+ if [ "$${l:0:7}" != "CONFIG_" ] ; then \
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+ continue ;\
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+ fi ;\
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+ l=$${l:7} ;\
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+ n=$${l%%=*} ;\
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+ v=$${l#*=} ;\
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+ if [ "$$v" = "m" ] ; then \
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+ echo config $$n ;\
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+ echo ' tristate' ;\
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+ elif [ "$$v" = "y" ] ; then \
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+ echo config $$n ;\
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+ echo ' bool' ;\
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+ else \
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+ continue ;\
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+ fi ;\
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+ echo " default $$v" ;\
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+ echo "" ;\
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+ done \
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+ ) > $@
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+ @echo " done."
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+
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+Kconfig.versions: Kconfig.kernel
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+ @kver=$$($(MAKE) --no-print-directory -C $(KLIB_BUILD) kernelversion | \
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+ sed 's/^\(\([3-4]\|2\.6\)\.[0-9]\+\).*/\1/;t;d') ;\
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+ test "$$kver" != "" || echo "Kernel version parse failed!" ;\
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+ test "$$kver" != "" ;\
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+ kvers="$$(seq 14 39 | sed 's/^/2.6./')" ;\
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+ kvers="$$kvers $$(seq 0 19 | sed 's/^/3./')" ;\
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+ kvers="$$kvers $$(seq 0 99 | sed 's/^/4./')" ;\
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+ print=0 ;\
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+ for v in $$kvers ; do \
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+ if [ "$$print" = "1" ] ; then \
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+ echo config KERNEL_$$(echo $$v | tr . _) ;\
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+ echo " def_bool y" ;\
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+ fi ;\
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+ if [ "$$v" = "$$kver" ] ; then print=1 ; fi ;\
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+ done > $@
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+ @RHEL_MAJOR=$$(grep '^RHEL_MAJOR' $(KERNEL_MAKEFILE) | \
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+ sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
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+ RHEL_MINOR=$$(grep '^RHEL_MINOR' $(KERNEL_MAKEFILE) | \
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+ sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\
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+ for v in $$(seq 0 $$RHEL_MINOR) ; do \
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+ echo config BACKPORT_RHEL_KERNEL_$${RHEL_MAJOR}_$$v ;\
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+ echo " def_bool y" ;\
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+ done >> $@
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+
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+.DEFAULT:
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+ @$(MAKE) Kconfig.versions
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@$(MAKE) -f Makefile.real "$@"
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.PHONY: defconfig-help
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--- a/Makefile.real
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+++ b/Makefile.real
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@@ -59,7 +59,7 @@ defconfig-%::
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backport-include/backport/autoconf.h: .config Kconfig.versions Kconfig.kernel
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@$(MAKE) oldconfig
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- @echo -n "Building backport-include/backport/autoconf.h ..."
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+ @printf "Building backport-include/backport/autoconf.h ..."
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@grep -f local-symbols .config | ( \
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echo "#ifndef COMPAT_AUTOCONF_INCLUDED" ;\
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echo "#define COMPAT_AUTOCONF_INCLUDED" ;\
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@@ -80,7 +80,12 @@ backport-include/backport/autoconf.h: .c
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esac ;\
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done ;\
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echo "#endif /* COMPAT_AUTOCONF_INCLUDED */" ;\
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- ) > backport-include/backport/autoconf.h
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+ ) > $@.new
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+ @if cmp -s $@ $@.new; then \
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+ rm -f $@.new; \
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+ else \
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+ mv $@.new $@; \
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+ fi
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@echo " done."
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.PHONY: modules
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