target/linux/kernel.mk

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