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$(KERNEL)
   6
   7 KERNEL_IDIR:=$(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) $(MAKE_TRACE)
  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 $(MAKE_TRACE)
  32         touch $@
  33
  34 $(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
  35         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep $(MAKE_TRACE)
  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 $(MAKE_TRACE)
  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) $(MAKE_TRACE)
  47
  48 $(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
  49         $(TARGET_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@ $(MAKE_TRACE)
  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 $(MAKE_TRACE)
  55         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" DEPMOD=true INSTALL_MOD_PATH=$(LINUX_BUILD_DIR)/modules modules_install $(MAKE_TRACE)
  56         touch $(LINUX_DIR)/.modules_done
  57
  58 # $(STAGING_DIR)/include/linux/version.h: $(LINUX_DIR)/.configured
  59 #       mkdir -p $(STAGING_DIR)/include
  60 #       tar -ch -C $(LINUX_DIR)/include -f - linux | tar -xf - -C $(STAGING_DIR)/include/
  61 #       tar -ch -C $(LINUX_DIR)/include -f - asm | tar -xf - -C $(STAGING_DIR)/include/
  62
  63 $(STAMP_DIR)/.linux-compile:
  64         @$(MAKE) $(LINUX_DIR)/.modules_done $(TARGETS) $(KERNEL_IPKG) $(MAKE_TRACE)
  65         ln -sf $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux $(MAKE_TRACE)
  66         @$(TRACE) target/linux/package/compile
  67         $(MAKE) -C $(TOPDIR)/target/linux/package \
  68                 $(KPKG_MAKEOPTS) \
  69                 compile
  70         touch $@
  71
  72 .PHONY: pkg-install
  73 pkg-install:
  74         @mkdir -p $(TARGET_MODULES_DIR)
  75         @rm -rf $(LINUX_BUILD_DIR)/root*
  76         @cp -fpR $(BUILD_DIR)/root $(LINUX_BUILD_DIR)/
  77         echo -e 'dest root /\noption offline_root $(LINUX_BUILD_DIR)/root' > $(LINUX_BUILD_DIR)/ipkg.conf
  78         $(MAKE) -C $(TOPDIR)/target/linux/package \
  79                 $(KPKG_MAKEOPTS) \
  80                 install
  81         @{ [ "$(INSTALL_TARGETS)" != "" ] && $(IPKG_KERNEL) install $(INSTALL_TARGETS) || true; } $(MAKE_TRACE)
  82
  83 $(KERNEL_IPKG):
  84         rm -rf $(KERNEL_IDIR)
  85         mkdir -p $(KERNEL_IDIR)/etc
  86         $(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
  87         if [ -f ./config/$(BOARD).modules ]; then \
  88                 cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
  89         fi
  90         $(IPKG_BUILD) $(KERNEL_IDIR) $(LINUX_BUILD_DIR) $(MAKE_TRACE)
  91
  92 source: $(DL_DIR)/$(LINUX_SOURCE)
  93 prepare:
  94         @mkdir -p $(STAMP_DIR) $(PACKAGE_DIR)
  95         @$(MAKE) $(LINUX_DIR)/.configured $(MAKE_TRACE)
  96
  97 compile: prepare $(STAMP_DIR)/.linux-compile
  98
  99 install: compile
 100         @$(TRACE) target/linux/package/install
 101         $(MAKE) pkg-install $(MAKE_TRACE)
 102         $(MAKE) $(LINUX_KERNEL) $(MAKE_TRACE)
 103
 104 mostlyclean:
 105         rm -f $(STAMP_DIR)/.linux-compile
 106         rm -f $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
 107         rm -f $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
 108         $(MAKE) -C $(LINUX_BUILD_DIR)/linux-$(LINUX_VERSION) clean $(MAKE_TRACE)
 109         rm -f $(LINUX_KERNEL)
 110
 111 rebuild:
 112         -$(MAKE) mostlyclean
 113         if [ -f $(LINUX_KERNEL) ]; then \
 114                 $(MAKE) clean $(MAKE_TRACE); \
 115         fi
 116         $(MAKE) compile $(MAKE_TRACE)
 117
 118 clean:
 119         rm -f $(STAMP_DIR)/.linux-compile
 120         rm -rf $(LINUX_BUILD_DIR)
 121         rm -f $(TARGETS)