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         touch $@
  22
  23 ifeq ($(KERNEL),2.4)
  24 $(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
  25         $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" \
  26           $(LINUX_DIR)/Makefile  \
  27           $(LINUX_DIR)/arch/*/Makefile
  28         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  29         $(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) oldconfig include/linux/compile.h include/linux/version.h
  30         touch $@
  31
  32 $(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
  33         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
  34         touch $@
  35
  36 $(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.depend_done
  37 else
  38 $(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
  39         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
  40         touch $@
  41 endif
  42
  43 $(LINUX_DIR)/vmlinux: $(STAMP_DIR)/.linux-compile
  44         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH)
  45
  46 $(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
  47         $(TARGET_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
  48         touch -c $(LINUX_KERNEL)
  49
  50 $(LINUX_DIR)/.modules_done:
  51         rm -rf $(LINUX_BUILD_DIR)/modules
  52         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH="$(TARGET_PATH)" modules
  53         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" DEPMOD=true INSTALL_MOD_PATH=$(LINUX_BUILD_DIR)/modules modules_install
  54         touch $(LINUX_DIR)/.modules_done
  55
  56 $(STAMP_DIR)/.linux-compile:
  57         @$(MAKE) $(LINUX_DIR)/.modules_done $(TARGETS) $(KERNEL_IPKG)
  58         ln -sf $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
  59         $(MAKE) -C $(TOPDIR)/target/linux/package \
  60                 $(KPKG_MAKEOPTS) \
  61                 compile
  62         touch $@
  63
  64 .PHONY: pkg-install
  65 pkg-install:
  66         @mkdir -p $(TARGET_MODULES_DIR)
  67         @rm -rf $(LINUX_BUILD_DIR)/root*
  68         @cp -fpR $(BUILD_DIR)/root $(LINUX_BUILD_DIR)/
  69         echo -e 'dest root /\noption offline_root $(LINUX_BUILD_DIR)/root' > $(LINUX_BUILD_DIR)/ipkg.conf
  70         $(MAKE) -C $(TOPDIR)/target/linux/package \
  71                 $(KPKG_MAKEOPTS) \
  72                 install
  73         [ "$(INSTALL_TARGETS)" != "" ] && $(IPKG_KERNEL) install $(INSTALL_TARGETS)
  74
  75 $(KERNEL_IPKG):
  76         rm -rf $(KERNEL_IDIR)
  77         mkdir -p $(KERNEL_IDIR)/etc
  78         $(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
  79         if [ -f ./config/$(BOARD).modules ]; then \
  80                 cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
  81         fi
  82         $(IPKG_BUILD) $(KERNEL_IDIR) $(LINUX_BUILD_DIR)
  83
  84 $(BUILD_DIR)/kernel.mk: FORCE
  85         echo "BOARD:=$(BOARD)" > $@
  86         echo "LINUX_VERSION:=$(LINUX_VERSION)" >> $@
  87         echo "LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
  88
  89 source: $(DL_DIR)/$(LINUX_SOURCE)
  90 prepare: $(BUILD_DIR)/kernel.mk
  91         @mkdir -p $(STAMP_DIR) $(PACKAGE_DIR)
  92         @$(MAKE) $(LINUX_DIR)/.configured
  93
  94 compile: prepare $(STAMP_DIR)/.linux-compile
  95
  96 install: compile
  97         $(MAKE) $(KPKG_MAKEOPTS) pkg-install
  98         $(MAKE) $(KPKG_MAKEOPTS) $(LINUX_KERNEL)
  99
 100 mostlyclean:
 101         rm -f $(STAMP_DIR)/.linux-compile
 102         rm -f $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
 103         rm -f $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
 104         $(MAKE) -C $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION) clean
 105         rm -f $(LINUX_KERNEL)
 106
 107 rebuild:
 108         -$(MAKE) mostlyclean
 109         if [ -f $(LINUX_KERNEL) ]; then \
 110                 $(MAKE) clean; \
 111         fi
 112         $(MAKE) compile $(MAKE_TRACE)
 113
 114 clean:
 115         rm -f $(STAMP_DIR)/.linux-compile
 116         rm -rf $(LINUX_BUILD_DIR)
 117         rm -f $(TARGETS)
 118
 119 package/%:
 120         $(MAKE) -C $(TOPDIR)/target/linux/package \
 121                 $(KPKG_MAKEOPTS) \
 122                 $(patsubst package/%,%,$@)