buildrootschalter/make/linux.mk
Eric Andersen 620dd7c5fd By popular demand, use 'sed' rather than 'perl' for doing
search and replace stuff.  Hopefully we do not have any
perl specific regexs that will be broken by this change,
but it seems to be working thus far anyways,
2003-11-13 06:02:20 +00:00

109 lines
3.7 KiB
Makefile

#############################################################
#
# Linux kernel targets
#
# Note: If you have any patches 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
# etc...
#
# these patches will all be applied by the patch-kernel.sh
# script (which will also abort the build if it finds rejects)
# -Erik
#
#############################################################
ifneq ($(filter $(TARGETS),linux),)
# Version of Linux to download and then apply patches to
DOWNLOAD_LINUX_VERSION=2.4.22
# Version of Linux AFTER patches
LINUX_VERSION=2.4.23-pre6-erik
LINUX_FORMAT=bzImage
LINUX_BINLOC=arch/$(ARCH)/boot/$(LINUX_FORMAT)
#LINUX_FORMAT=zImage
#LINUX_BINLOC=arch/ppc/boot/images/zImage.prep
LINUX_DIR=$(BUILD_DIR)/linux-$(LINUX_VERSION)
LINUX_SOURCE=linux-$(DOWNLOAD_LINUX_VERSION).tar.bz2
LINUX_SITE=ftp://ftp.kernel.org/pub/linux/kernel/v2.4
LINUX_KCONFIG=$(SOURCE_DIR)/linux.config
LINUX_KERNEL=$(BUILD_DIR)/buildroot-kernel
# Used by pcmcia-cs and others
LINUX_SOURCE_DIR=$(LINUX_DIR)
$(DL_DIR)/$(LINUX_SOURCE):
$(WGET) -P $(DL_DIR) $(LINUX_SITE)/$(LINUX_SOURCE)
$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
rm -rf $(LINUX_DIR)
bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(BUILD_DIR) -xvf -
ifneq ($(DOWNLOAD_LINUX_VERSION),$(LINUX_VERSION))
# Rename the dir from the downloaded version to the AFTER patch version
mv -f $(BUILD_DIR)/linux-$(DOWNLOAD_LINUX_VERSION) $(BUILD_DIR)/linux-$(LINUX_VERSION)
endif
mkdir -p $(SOURCE_DIR)/kernel-patches
$(SOURCE_DIR)/patch-kernel.sh $(LINUX_DIR) $(SOURCE_DIR)/kernel-patches
-(cd $(BUILD_DIR); ln -sf $(LINUX_DIR) linux)
touch $(LINUX_DIR)/.unpacked
$(LINUX_KCONFIG):
@if [ ! -f "$(LINUX_KCONFIG)" ] ; then \
echo ""; \
echo "You should create a .config for your kernel"; \
echo "and install it as $(LINUX_KCONFIG)"; \
echo ""; \
sleep 5; \
fi;
$(LINUX_DIR)/.configured $(BUILD_DIR)/linux/.configured: $(LINUX_DIR)/.unpacked $(LINUX_KCONFIG)
sed -ie "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),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
$(LINUX_DIR)/$(LINUX_BINLOC): $(LINUX_DIR)/.depend_done
$(MAKE) -C $(LINUX_DIR) $(LINUX_FORMAT)
$(MAKE) -C $(LINUX_DIR) modules
$(LINUX_KERNEL): $(LINUX_DIR)/$(LINUX_BINLOC)
cp -fa $(LINUX_DIR)/$(LINUX_BINLOC) $(LINUX_KERNEL)
touch -c $(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)/.configured
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
linux-source: $(DL_DIR)/$(LINUX_SOURCE)
# This has been renamed so we do _NOT_ by default run this on 'make clean'
linuxclean: clean
rm -f $(LINUX_KERNEL)
-$(MAKE) -C $(LINUX_DIR) clean
linux-dirclean:
rm -rf $(LINUX_DIR)
endif