Support building regular kernels (98b6fb27) · Commits · Dom Sekotill / buildroot

Makefile

+5 −1

Original line number	Diff line number	Diff line
		@@ -61,6 +61,11 @@ ifeq ($(USE_UCLIBC_TOOLCHAIN),true)
		TARGETS=uclibc_toolchain
		endif

		# Do you want user mode Linux, or are you building a
		# real kernel that will run on its own?
		TARGETS+=linux
		#TARGETS+=user-mode-linux

		# The default minimal set
		TARGETS+=user-mode-linux busybox tinylogin

		@@ -87,7 +92,6 @@ TARGETS+=ext2root
		#############################################################
		BASE_DIR:=${shell pwd}
		HOSTCC:=gcc
		LINUX_KERNEL=$(BASE_DIR)/UMlinux
		SOURCE_DIR:=$(BASE_DIR)/sources
		DL_DIR:=$(SOURCE_DIR)/dl
		PATCH_DIR=$(SOURCE_DIR)/patches

make/linux.mk

0 → 100644

+88 −0

Original line number	Diff line number	Diff line
		#############################################################
		#
		# Linux kernel targets
		#
		# Note: If you have any patched to apply, create the directory
		# sources/kernel-patches and put your patches in there and number
		# them in the order you wish to apply them... i.e.
		#
		# sources/kernel-patches/001-my-special-stuff.bz2
		# sources/kernel-patches/003-gcc-Os.bz2
		# sources/kernel-patches/004_no-warnings.bz2
		# sources/kernel-patches/030-lowlatency-mini.bz2
		# sources/kernel-patches/031-lowlatency-fixes-5.bz2
		# sources/kernel-patches/099-shutup.bz2
		#
		# these patched will all be applied by the patch-kernel.sh
		# script (which will also abort the build if it finds rejects)
		# -Erik
		#
		#############################################################
		ifneq ($(filter $(TARGETS),linux),)

		LINUX_KERNEL=$(BUILD_DIR)/buildroot-kernel
		LINUX_DIR=$(BUILD_DIR)/linux-2.4.20
		LINUX_SOURCE=linux-2.4.20.tar.bz2
		LINUX_SITE=http://ftp.us.kernel.org/pub/linux/kernel/v2.4
		LINUX_KCONFIG=$(SOURCE_DIR)/linux.config
		LINUX_VERSION=$(shell grep -s UTS_RELEASE $(LINUX_DIR)/include/linux/version.h \|\| echo '\#define UTS_RELEASE \"2.4.20\"' \| cut -f 2 -d \" )

		$(DL_DIR)/$(LINUX_SOURCE):
		$(WGET) -P $(DL_DIR) $(LINUX_SITE)/$(LINUX_SOURCE)

		$(LINUX_DIR)/.dist: $(DL_DIR)/$(LINUX_SOURCE)
		rm -rf $(LINUX_DIR)
		bzcat $(DL_DIR)/$(LINUX_SOURCE) \| tar -C $(BUILD_DIR) -xvf -
		$(SOURCE_DIR)/patch-kernel.sh $(LINUX_DIR) $(SOURCE_DIR)/kernel-patches \
		touch $(LINUX_DIR)/.dist

		$(LINUX_DIR)/.configured: $(LINUX_DIR)/.dist $(LINUX_KCONFIG)
		perl -i -p -e "s,^CROSS_COMPILE.*,\
		CROSS_COMPILE=$(STAGING_DIR)/bin/$(ARCH)-uclibc-,g;" \
		$(LINUX_DIR)/Makefile
		cp $(LINUX_KCONFIG) $(LINUX_DIR)/.config
		make -C $(LINUX_DIR) oldconfig include/linux/version.h
		touch $(LINUX_DIR)/.configured

		$(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
		make -C $(LINUX_DIR) dep
		touch $(LINUX_DIR)/.depend_done

		$(LINUX_DIR)/arch/$(ARCH)/boot/bzImage: $(LINUX_DIR)/.depend_done
		make -C $(LINUX_DIR) bzImage
		make -C $(LINUX_DIR) modules

		$(LINUX_KERNEL): $(LINUX_DIR)/arch/$(ARCH)/boot/bzImage
		cp -fa $(LINUX_DIR)/arch/$(ARCH)/boot/bzImage $(LINUX_KERNEL)

		$(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep: $(LINUX_KERNEL)
		rm -rf $(TARGET_DIR)/lib/modules
		rm -f $(TARGET_DIR)/sbin/cardmgr
		make -C $(LINUX_DIR) INSTALL_MOD_PATH=$(TARGET_DIR) modules_install
		(cd $(TARGET_DIR)/lib/modules; ln -s $(LINUX_VERSION)/kernel/drivers .)

		$(STAGING_DIR)/include/linux/version.h: $(LINUX_DIR)/include/linux/version.h
		mkdir -p $(STAGING_DIR)/include
		tar -ch -C $(LINUX_DIR)/include -f - linux \| tar -xf - -C $(STAGING_DIR)/include/
		tar -ch -C $(LINUX_DIR)/include -f - asm \| tar -xf - -C $(STAGING_DIR)/include/

		linux: $(STAGING_DIR)/include/linux/version.h $(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep

		# Rename this so it is cleaned by default on a make clean
		linuxclean: clean
		rm -f $(LINUX_KERNEL)
		-make -C $(LINUX_DIR) clean

		linux-dirclean:
		rm -rf $(LINUX_DIR)

		#############################################################
		#
		# Setup the kernel headers, but don't compile anything for the target yet,
		# since we still need to build a cross-compiler to do that little task for
		# us... Try to work around this little chicken-and-egg problem..
		#
		#############################################################
		linux_headers: $(LINUX_DIR)/.configured

		endif

make/user-mode-linux.mk

+4 −0

Original line number	Diff line number	Diff line
		@@ -3,6 +3,9 @@
		# Linux kernel targets
		#
		#############################################################
		ifneq ($(filter $(TARGETS),user-mode-linux),)

		LINUX_KERNEL=$(BASE_DIR)/UMlinux
		UMLINUX_DIR=$(BUILD_DIR)/linux-2.4.19
		LINUX_DIR=$(UMLINUX_DIR)
		UMLINUX_SOURCE=linux-2.4.19.tar.bz2
		@@ -65,3 +68,4 @@ user-mode-linux-dirclean:
		#############################################################
		linux_headers: $(UMLINUX_DIR)/.configured

		endif

sources/patch-kernel.sh

0 → 100755

+47 −0

Original line number	Diff line number	Diff line
		#! /bin/sh

		# Set directories from arguments, or use defaults.
		targetdir=${1-.}
		patchdir=${2-../kernel-patches}

		if [ ! -d "${targetdir}" ] ; then
		echo "Aborting. '${targetdir}' is not a directory."
		exit 1
		fi
		if [ ! -d "${patchdir}" ] ; then
		echo "Aborting. '${patchdir}' is not a directory."
		exit 1
		fi

		for i in ${patchdir}/* ; do
		case "$i" in
		*.gz)
		type="gzip"; uncomp="gunzip -dc"; ;;
		*.bz)
		type="bzip"; uncomp="bunzip -dc"; ;;
		*.bz2)
		type="bzip2"; uncomp="bunzip2 -dc"; ;;
		*.zip)
		type="zip"; uncomp="unzip -d"; ;;
		*.Z)
		type="compress"; uncomp="uncompress -c"; ;;
		*)
		type="plaintext"; uncomp="cat"; ;;
		esac
		echo ""
		echo "Applying ${i} using ${type}: "
		${uncomp} ${i} \| patch -p1 -E -d ${targetdir}
		if [ $? != 0 ] ; then
		echo "Patch failed! Please fix $i!"
		exit 1
		fi
		done

		# Check for rejects...
		if [ "`find $targetdir/ '(' -name '.rej' -o -name '..rej' ')' -print`" ] ; then
		echo "Aborting. Reject files found."
		exit 1
		fi

		# Remove backup files
		find $targetdir/ '(' -name '.orig' -o -name '..orig' ')' -exec rm -f {} \;