openwrt/include/kernel-build.mk

   1 -include $(INCLUDE_DIR)/modules-$(KERNEL).mk
   2
   3 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
   4 LINUX_SITE=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
   5            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
   6            http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
   7            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
   8
   9 KERNEL_IDIR:=$(KERNEL_BUILD_DIR)/kernel-ipkg
  10 KERNEL_IPKG:=$(KERNEL_BUILD_DIR)/kernel_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
  11 INSTALL_TARGETS += $(KERNEL_IPKG)
  12
  13 $(TARGETS): $(PACKAGE_DIR)
  14
  15 $(LINUX_DIR):
  16         mkdir -p $@
  17
  18 $(PACKAGE_DIR):
  19         mkdir -p $@
  20
  21 $(DL_DIR)/$(LINUX_SOURCE):
  22         -mkdir -p $(DL_DIR)
  23         $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
  24
  25 $(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
  26         -mkdir -p $(KERNEL_BUILD_DIR)
  27         bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) -
  28         touch $@
  29
  30 ifeq ($(KERNEL),2.4)
  31 $(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
  32         $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" \
  33           $(LINUX_DIR)/Makefile  \
  34           $(LINUX_DIR)/arch/*/Makefile
  35         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  36         $(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) oldconfig include/linux/compile.h include/linux/version.h
  37         touch $@
  38
  39 $(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
  40         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
  41         touch $@
  42
  43 $(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.depend_done
  44 else
  45 $(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
  46         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
  47         touch $@
  48 endif
  49
  50 ramdisk-config: $(LINUX_DIR)/.configured FORCE
  51         mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  52         grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  53 ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  54         echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
  55         echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
  56         echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
  57         mkdir -p $(BUILD_DIR)/root/etc/init.d
  58         $(CP) ../generic-2.6/files/init $(BUILD_DIR)/root/
  59 else
  60         rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
  61         echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
  62 endif
  63
  64 $(LINUX_DIR)/vmlinux: $(STAMP_DIR)/.linux-compile pkg-install ramdisk-config
  65         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH)
  66
  67 $(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
  68         $(TARGET_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
  69         touch -c $(LINUX_KERNEL)
  70
  71 $(LINUX_DIR)/.modules_done:
  72         rm -rf $(KERNEL_BUILD_DIR)/modules
  73         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH="$(TARGET_PATH)" modules
  74         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
  75         touch $(LINUX_DIR)/.modules_done
  76
  77 $(STAMP_DIR)/.linux-compile:
  78         @$(MAKE) $(LINUX_DIR)/.modules_done $(TARGETS) $(KERNEL_IPKG)
  79         ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
  80         touch $@
  81
  82 $(KERNEL_IPKG):
  83         rm -rf $(KERNEL_IDIR)
  84         mkdir -p $(KERNEL_IDIR)/etc
  85         $(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
  86         if [ -f ./config/$(BOARD).modules ]; then \
  87                 cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
  88         fi
  89         $(IPKG_BUILD) $(KERNEL_IDIR) $(KERNEL_BUILD_DIR)
  90
  91 $(TOPDIR)/.kernel.mk:
  92         echo "BOARD:=$(BOARD)" > $@
  93         echo "LINUX_VERSION:=$(LINUX_VERSION)" >> $@
  94         echo "LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
  95
  96 pkg-install: FORCE
  97         @{ [ "$(INSTALL_TARGETS)" != "" ] && $(IPKG) install $(INSTALL_TARGETS) || true; }
  98
  99 source: $(DL_DIR)/$(LINUX_SOURCE)
 100 prepare: $(LINUX_DIR)/.configured
 101         @mkdir -p $(STAMP_DIR) $(PACKAGE_DIR)
 102
 103 compile: prepare $(STAMP_DIR)/.linux-compile
 104
 105 install: compile $(LINUX_KERNEL)
 106
 107 mostlyclean: FORCE
 108         rm -f $(STAMP_DIR)/.linux-compile
 109         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
 110         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
 111         $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
 112         rm -f $(LINUX_KERNEL)
 113
 114 rebuild: FORCE
 115         -$(MAKE) mostlyclean
 116         if [ -f $(LINUX_KERNEL) ]; then \
 117                 $(MAKE) clean; \
 118         fi
 119         $(MAKE) compile $(MAKE_TRACE)
 120
 121 clean: FORCE
 122         rm -f $(STAMP_DIR)/.linux-compile
 123         rm -rf $(KERNEL_BUILD_DIR)
 124         rm -f $(TARGETS)