114 lines
4 KiB
Makefile
114 lines
4 KiB
Makefile
#############################################################
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#
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# Linux kernel target for the OpenWRT project
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#
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# patches are sorted by numbers
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# 000 patch between linux-2.4.29 and linux-mips-cvs
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# 0xx linksys patches
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# 1xx OpenWRT patches (diag,compressed,..)
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# 2xx fixes for 2.4.29 integration (wl driver)
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# 3xx kernel feature patches (squashfs,jffs2 compression,..)
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# 4xx patches needed to integrate feature patches
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#
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#############################################################
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ifneq ($(filter $(TARGETS),linux),)
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LINUX_FORMAT=zImage
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LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
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-e 's/mipsel/mips/' \
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-e 's/powerpc/ppc/' \
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-e 's/sh[234]/sh/' \
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)
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LINUX_VERSION=2.4.29
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LINUX_DIR=$(BUILD_DIR)/linux-$(LINUX_VERSION)
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LINUX_SITE=http://www.kernel.org/pub/linux/kernel/v2.4
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LINUX_SOURCE=linux-$(LINUX_VERSION).tar.bz2
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LINUX_KCONFIG=package/linux/linux.config
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LINUX_KERNEL=$(BUILD_DIR)/buildroot-kernel
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LINUX_PATCHES=$(PACKAGE_DIR)/linux/kernel-patches
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LINUX_BINLOC=arch/$(LINUX_KARCH)/brcm-boards/bcm947xx/compressed/vmlinuz
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# Used by pcmcia-cs and others
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LINUX_SOURCE_DIR=$(LINUX_DIR)
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# kernel stuff extracted from linksys firmware GPL sourcetree
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# WRT54GS_3_37_2_1109_US (shared,include,wl,et)
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LINKSYS_KERNEL_SITE=http://openwrt.openbsd-geek.de
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LINKSYS_KERNEL_TGZ=linksys-kernel.tar.gz
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TARGET_MODULES_DIR=$(TARGET_DIR)/lib/modules/$(LINUX_VERSION)
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$(DL_DIR)/$(LINKSYS_KERNEL_TGZ):
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$(WGET) -P $(DL_DIR) $(LINKSYS_KERNEL_SITE)/$(LINKSYS_KERNEL_TGZ)
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$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE) $(DL_DIR)/$(LINKSYS_KERNEL_TGZ)
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-mkdir -p $(BUILD_DIR)
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bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
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# extract linksys binary kernel stuff and include/shared files
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zcat $(DL_DIR)/$(LINKSYS_KERNEL_TGZ) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
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touch $(LINUX_DIR)/.unpacked
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$(LINUX_DIR)/.patched: $(LINUX_DIR)/.unpacked
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$(PATCH) $(LINUX_DIR) $(LINUX_PATCHES)
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touch $(LINUX_DIR)/.patched
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$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
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-cp $(LINUX_KCONFIG) $(LINUX_DIR)/.config
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$(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" \
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$(LINUX_DIR)/Makefile \
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$(LINUX_DIR)/arch/mips/Makefile
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$(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
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$(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) 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) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) 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) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH) $(LINUX_FORMAT)
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$(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH) modules
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$(LINUX_KERNEL): $(LINUX_DIR)/$(LINUX_BINLOC)
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cp -fa $(LINUX_DIR)/$(LINUX_BINLOC) $(LINUX_KERNEL)
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touch -c $(LINUX_KERNEL)
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$(LINUX_DIR)/.modules_done: $(LINUX_KERNEL)
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rm -rf $(BUILD_DIR)/modules
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$(MAKE) -C $(LINUX_DIR) DEPMOD=true INSTALL_MOD_PATH=$(BUILD_DIR)/modules modules_install
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tar -C $(BUILD_DIR)/modules/lib -cjf openwrt-kmodules.tar.bz2 modules
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touch $(LINUX_DIR)/.modules_done
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$(STAGING_DIR)/include/linux/version.h: $(LINUX_DIR)/.configured
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mkdir -p $(STAGING_DIR)/include
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tar -ch -C $(LINUX_DIR)/include -f - linux | tar -xf - -C $(STAGING_DIR)/include/
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tar -ch -C $(LINUX_DIR)/include -f - asm | tar -xf - -C $(STAGING_DIR)/include/
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$(TARGET_MODULES_DIR):
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-mkdir -p $(TARGET_MODULES_DIR)
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cp $(LINUX_DIR)/drivers/net/wl/wl.o $(TARGET_MODULES_DIR)
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cp $(LINUX_DIR)/drivers/net/et/et.o $(TARGET_MODULES_DIR)
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cp $(LINUX_DIR)/drivers/net/diag/diag.o $(TARGET_MODULES_DIR)
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linux: $(LINUX_DIR)/.modules_done $(TARGET_MODULES_DIR)
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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) -C $(LINUX_DIR) clean
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linux-dirclean:
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rm -rf $(LINUX_DIR)
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endif
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#############################################################
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#
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# Toplevel Makefile options
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#
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##############################################################
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ifeq ($(strip $(BR2_PACKAGE_LINUX)),y)
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TARGETS+=linux
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endif
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