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linux: Install kernel build system to /lib/modules

Browse Source 
This is necessary so that we can clean up /usr/src after
each build and do not waste any space on the massive kernel
source.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This commit is contained in:
Michael Tremer
2019-05-10 10:12:50 +01:00
parent 8634797e8a
commit 0ad5f6a1fc
1 changed files with 40 additions and 1 deletions
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41
lfs/linux
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@@ -199,6 +199,45 @@ ifeq "$(BUILD_PLATFORM)" "arm"
done
endif
# Recreate source and build links
rm -rf /lib/modules/$(VER)-$(VERSUFIX)/{build,source}
mkdir -p /lib/modules/$(VER)-$(VERSUFIX)/build
ln -sf build /lib/modules/$(VER)-$(VERSUFIX)/source
# Create dirs for extra modules
mkdir -p /lib/modules/$(VER)-$(VERSUFIX)/extra
cd $(DIR_APP) && cp --parents $$(find -type f -name "Makefile*" -o -name "Kconfig*") \
/lib/modules/$(VER)-$(VERSUFIX)/build
cd $(DIR_APP) && cp Module.symvers System.map /lib/modules/$(VER)-$(VERSUFIX)/build
rm -rf /lib/modules/$(VER)-$(VERSUFIX)/build/{Documentation,scripts,include}
cd $(DIR_APP) && cp .config /lib/modules/$(VER)-$(VERSUFIX)/build
cd $(DIR_APP) && cp -a scripts /lib/modules/$(VER)-$(VERSUFIX)/build
find /lib/modules/$(VER)-$(VERSUFIX)/build/scripts -name "*.o" -exec rm -vf {} \;
cd $(DIR_APP) && cp -a --parents arch/$(HEADERS_ARCH)/include /lib/modules/$(VER)-$(VERSUFIX)/build
cd $(DIR_APP) && cp -a include /lib/modules/$(VER)-$(VERSUFIX)/build/include
# Install objtool
cd $(DIR_APP) && cp -a tools/objtool/objtool /lib/modules/$(VER)-$(VERSUFIX)/build/tools/objtool/
cd $(DIR_APP) && cp -a --parents tools/build/{Build,Build.include,fixdep.c} \
tools/scripts/utilities.mak /lib/modules/$(VER)-$(VERSUFIX)/build
# Make sure we can build external modules
touch -r /lib/modules/$(VER)-$(VERSUFIX)/build/Makefile \
/lib/modules/$(VER)-$(VERSUFIX)/build/include/linux/version.h
touch -r /lib/modules/$(VER)-$(VERSUFIX)/build/.config \
/lib/modules/$(VER)-$(VERSUFIX)/build/autoconf.h
cp /lib/modules/$(VER)-$(VERSUFIX)/build/.config \
/lib/modules/$(VER)-$(VERSUFIX)/build/include/config/auto.conf
# Fix permissions
find /lib/modules/$(VER)-$(VERSUFIX) -name "modules.order" \
-exec chmod 644 {} \;
find /lib/modules/$(VER)-$(VERSUFIX) -name ".*.cmd" -exec rm -f {} \;
ifeq "$(LASTKERNEL)" "1"
# Only do this once
cd $(DIR_APP) && install -m 755 usr/gen_init_cpio /sbin/
@@ -225,5 +264,5 @@ endif
-rm -f /usr/src/log/*-kmod-$(VER)-$(VERSUFIX)
-rm -f /usr/src/log/linux-initrd-$(VER)-$(VERSUFIX)
@rm -rf $(DIR_SRC)/patch-o-matic* $(DIR_SRC)/iptables* $(DIR_SRC)/squashfs* $(DIR_SRC)/netfilter-layer7-*
@rm -rf $(DIR_APP) $(DIR_SRC)/linux
@$(POSTBUILD)