130 lines
4.6 KiB
Makefile
130 lines
4.6 KiB
Makefile
#############################################################
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#
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# Linux kernel targets
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#
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# Note: If you have any patches to apply, create the directory
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# sources/kernel-patches and put your patches in there and number
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# them in the order you wish to apply them... i.e.
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#
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# sources/kernel-patches/001-my-special-stuff.bz2
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# sources/kernel-patches/003-gcc-Os.bz2
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# sources/kernel-patches/004_no-warnings.bz2
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# sources/kernel-patches/030-lowlatency-mini.bz2
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# sources/kernel-patches/031-lowlatency-fixes-5.bz2
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# sources/kernel-patches/099-shutup.bz2
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# etc...
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#
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# these patches will all be applied by the patch-kernel.sh
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# script (which will also abort the build if it finds rejects)
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# -Erik
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#
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#############################################################
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ifneq ($(filter $(TARGETS),linux),)
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# Base version of Linux kernel that we need to download
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DOWNLOAD_LINUX_VERSION=2.4.32
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# Version of Linux kernel AFTER applying all patches
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LINUX_VERSION=$(DOWNLOAD_LINUX_VERSION)-q5
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# File name for the Linux kernel binary
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LINUX_KERNEL=linux-kernel-$(LINUX_VERSION)-$(ARCH).srec
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# Linux kernel configuration file
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LINUX_KCONFIG=$(BOARD_PATH)/linux.config
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# kernel patches
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LINUX_PATCH_DIR=target/device/jp/q5/kernel-patches-$(DOWNLOAD_LINUX_VERSION)/
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LINUX_FORMAT=vmlinux
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LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
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-e 's/mipsel/mips/' \
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-e 's/powerpc/ppc/' \
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-e 's/sh[234]/sh/' \
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)
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LINUX_BINLOC=$(LINUX_FORMAT)
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LINUX_DIR=$(BUILD_DIR)/linux-$(LINUX_VERSION)
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LINUX_SOURCE=linux-$(DOWNLOAD_LINUX_VERSION).tar.bz2
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LINUX_CAT:=$(BZCAT)
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LINUX_SITE=$(BR2_KERNEL_MIRROR)/linux/kernel/v2.4
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# Used by pcmcia-cs and others
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LINUX_SOURCE_DIR=$(LINUX_DIR)
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$(DL_DIR)/$(LINUX_SOURCE):
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mkdir -p $(DL_DIR)
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$(WGET) -P $(DL_DIR) $(LINUX_SITE)/$(LINUX_SOURCE)
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$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
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mkdir -p $(TOOL_BUILD_DIR)
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-(cd $(TOOL_BUILD_DIR); ln -snf $(LINUX_DIR) linux)
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$(LINUX_CAT) $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
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ifneq ($(DOWNLOAD_LINUX_VERSION),$(LINUX_VERSION))
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# Rename the dir from the downloaded version to the AFTER patch version
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mv -f $(BUILD_DIR)/linux-$(DOWNLOAD_LINUX_VERSION) $(BUILD_DIR)/linux-$(LINUX_VERSION)
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endif
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toolchain/patch-kernel.sh $(LINUX_DIR) $(LINUX_PATCH_DIR)
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#New versions of binutils does not have -mcpu, but -mtune. -march is not needed because -mips2 is used
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mv $(LINUX_DIR)/arch/mips/Makefile $(LINUX_DIR)/arch/mips/Makefile.org && sed 's/-mcpu/-mtune/g' < $(LINUX_DIR)/arch/mips/Makefile.org > $(LINUX_DIR)/arch/mips/Makefile
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touch $(LINUX_DIR)/.unpacked
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$(LINUX_KCONFIG):
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@if [ ! -f "$(LINUX_KCONFIG)" ]; then \
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echo ""; \
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echo "You should create a .config for your kernel"; \
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echo "and install it as $(LINUX_KCONFIG)"; \
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echo ""; \
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sleep 5; \
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fi
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$(LINUX_DIR)/.configured $(BUILD_DIR)/linux/.configured: $(LINUX_DIR)/.unpacked $(LINUX_KCONFIG)
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$(SED) "s,^ARCH.*,ARCH=$(LINUX_KARCH),g;" $(LINUX_DIR)/Makefile
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$(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" $(LINUX_DIR)/Makefile
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-cp $(LINUX_KCONFIG) $(LINUX_DIR)/.config
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ifeq ($(strip $(BR2_mips)),y)
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$(SED) "s,CONFIG_CPU_LITTLE_ENDIAN=y,# CONFIG_CPU_LITTLE_ENDIAN is not set\n# CONFIG_BINFMT_IRIX is not set," $(LINUX_DIR)/.config
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endif
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$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) oldconfig include/linux/version.h
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touch $(LINUX_DIR)/.configured
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$(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
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$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) dep
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touch $(LINUX_DIR)/.depend_done
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$(LINUX_DIR)/$(LINUX_BINLOC): $(LINUX_DIR)/.depend_done
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$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) $(LINUX_FORMAT)
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$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) modules
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$(LINUX_KERNEL): $(LINUX_DIR)/$(LINUX_BINLOC)
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$(KERNEL_CROSS)objcopy -O srec $(LINUX_DIR)/$(LINUX_BINLOC) $(LINUX_KERNEL)
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touch -c $(LINUX_KERNEL)
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$(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep: $(LINUX_KERNEL) cross-depmod
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rm -rf $(TARGET_DIR)/lib/modules
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rm -f $(TARGET_DIR)/sbin/cardmgr
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$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) \
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DEPMOD=$(STAGING_DIR)/usr/bin/$(GNU_TARGET_NAME)-depmod \
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INSTALL_MOD_PATH=$(TARGET_DIR) modules_install
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$(STAGING_DIR)/usr/include/linux/version.h: $(LINUX_DIR)/.configured
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mkdir -p $(STAGING_DIR)/usr/include
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tar -ch -C $(LINUX_DIR)/include -f - linux | tar -xf - -C $(STAGING_DIR)/usr/include/
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tar -ch -C $(LINUX_DIR)/include -f - asm | tar -xf - -C $(STAGING_DIR)/usr/include/
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linux: $(STAGING_DIR)/usr/include/linux/version.h $(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep
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linux-source: $(DL_DIR)/$(LINUX_SOURCE)
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# This has been renamed so we do _NOT_ by default run this on 'make clean'
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linuxclean: clean
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rm -f $(LINUX_KERNEL)
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-$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) clean
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linux-dirclean:
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rm -rf $(LINUX_DIR)
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endif
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