openwrt/target/linux/kernel.mk

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