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 TARGETS += $(KERNEL_IPKG)
  12 INSTALL_TARGETS += $(KERNEL_IPKG)
  13
  14 $(TARGETS): $(PACKAGE_DIR)
  15
  16 $(LINUX_DIR):
  17         mkdir -p $@
  18
  19 $(PACKAGE_DIR):
  20         mkdir -p $@
  21
  22 $(DL_DIR)/$(LINUX_SOURCE):
  23         -mkdir -p $(DL_DIR)
  24         $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
  25
  26 $(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
  27         -mkdir -p $(KERNEL_BUILD_DIR)
  28         bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) -
  29         touch $@
  30
  31 ifeq ($(KERNEL),2.4)
  32 $(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
  33         $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" \
  34           $(LINUX_DIR)/Makefile  \
  35           $(LINUX_DIR)/arch/*/Makefile
  36         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  37         $(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) oldconfig include/linux/compile.h include/linux/version.h
  38         touch $@
  39
  40 $(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
  41         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
  42         touch $@
  43
  44 $(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.depend_done
  45 else
  46 $(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
  47         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
  48         touch $@
  49 endif
  50
  51 ramdisk-config: $(LINUX_DIR)/.configured FORCE
  52         mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  53         grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  54 ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  55         echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
  56         echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
  57         echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
  58         mkdir -p $(BUILD_DIR)/root/etc/init.d
  59         $(CP) ../generic-2.6/files/init $(BUILD_DIR)/root/
  60 else
  61         rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
  62         echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
  63 endif
  64
  65 $(LINUX_DIR)/vmlinux: $(STAMP_DIR)/.linux-compile pkg-install ramdisk-config
  66         $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH)
  67
  68 $(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
  69         $(TARGET_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
  70         touch -c $(LINUX_KERNEL)
  71
  72 $(LINUX_DIR)/.modules_done:
  73         rm -rf $(KERNEL_BUILD_DIR)/modules
  74         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH="$(TARGET_PATH)" modules
  75         $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
  76         touch $(LINUX_DIR)/.modules_done
  77
  78 modules: $(LINUX_DIR)/.modules_done
  79 packages: $(TARGETS)
  80
  81 $(STAMP_DIR)/.linux-compile:
  82         @$(MAKE) modules
  83         @$(MAKE) packages
  84         ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
  85         touch $@
  86
  87 $(KERNEL_IPKG):
  88         rm -rf $(KERNEL_IDIR)
  89         mkdir -p $(KERNEL_IDIR)/etc
  90         $(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
  91         if [ -f ./config/$(BOARD).modules ]; then \
  92                 cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
  93         fi
  94         $(IPKG_BUILD) $(KERNEL_IDIR) $(KERNEL_BUILD_DIR)
  95
  96 $(TOPDIR)/.kernel.mk:
  97         echo "BOARD:=$(BOARD)" > $@
  98         echo "LINUX_VERSION:=$(LINUX_VERSION)" >> $@
  99         echo "LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
 100
 101 pkg-install: FORCE
 102         @{ [ "$(INSTALL_TARGETS)" != "" ] && $(IPKG) install $(INSTALL_TARGETS) || true; }
 103
 104 source: $(DL_DIR)/$(LINUX_SOURCE)
 105 prepare: $(LINUX_DIR)/.configured
 106         @mkdir -p $(STAMP_DIR) $(PACKAGE_DIR)
 107
 108 compile: prepare $(STAMP_DIR)/.linux-compile
 109
 110 install: compile $(LINUX_KERNEL)
 111
 112 mostlyclean: FORCE
 113         rm -f $(STAMP_DIR)/.linux-compile
 114         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
 115         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
 116         $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
 117         rm -f $(LINUX_KERNEL)
 118
 119 rebuild: FORCE
 120         -$(MAKE) mostlyclean
 121         if [ -f $(LINUX_KERNEL) ]; then \
 122                 $(MAKE) clean; \
 123         fi
 124         $(MAKE) compile $(MAKE_TRACE)
 125
 126 clean: FORCE
 127         rm -f $(STAMP_DIR)/.linux-compile
 128         rm -rf $(KERNEL_BUILD_DIR)
 129         rm -f $(TARGETS)
 130
 131
 132 define AutoLoad
 133 add_module $(1) "$(2)";
 134 endef
 135
 136 define KernelPackage/Defaults
 137   VERSION:=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)
 138   DEPENDS:=
 139   MAINTAINER:=OpenWrt Developers Team <openwrt-devel@openwrt.org>
 140   SOURCE:=$(patsubst $(TOPDIR)/%,%,${shell pwd})
 141   PKGARCH:=$(ARCH)
 142   PRIORITY:=optional
 143   KCONFIG:=
 144   FILES:=
 145   BUILD:=
 146   MODULES:=
 147   TITLE:=
 148   DESCRIPTION:=
 149 endef
 150
 151 define KernelPackage
 152   NAME:=$(1)
 153   $(eval $(call KernelPackage/Defaults))
 154   $(eval $(call KernelPackage/$(1)))
 155   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
 156
 157   PKG_$(1) := $(PACKAGE_DIR)/kmod-$(1)_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
 158   I_$(1) := $(KMOD_BUILD_DIR)/ipkg/$(1)
 159
 160   IDEPEND_$(1):='kernel ($(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))' $(DEPENDS)
 161
 162   ifeq ($$(strip $(KCONFIG)),)
 163     KDEPEND_$(1):=m
 164   else
 165     KDEPEND_$(1):=$($(KCONFIG))
 166   endif
 167   ifeq ($$(KDEPEND_$(1)),m)
 168     ifneq ($(CONFIG_PACKAGE_kmod-$(1)),)
 169       packages: $$(PKG_$(1))
 170     endif
 171     ifeq ($(CONFIG_PACKAGE_kmod-$(1)),y)
 172       install-kmod-$(1): FORCE
 173                 $(IPKG) install $$(PKG_$(1))
 174       pkg-install: install-kmod-$(1)
 175     endif
 176   endif
 177
 178   $$(PKG_$(1)): $(LINUX_DIR)/.modules_done
 179         rm -rf $$(I_$(1))
 180         install -d -m0755 $$(I_$(1))/CONTROL
 181         echo "Package: kmod-$(1)" > $$(I_$(1))/CONTROL/control
 182         echo "Version: $(VERSION)" >> $$(I_$(1))/CONTROL/control
 183         ( \
 184                 DEPENDS=; \
 185                 for depend in $$(filter-out @%,$$(IDEPEND_$(1))); do \
 186                         DEPENDS=$$$${DEPENDS:+$$$$DEPENDS, }$$$${depend##+}; \
 187                 done; \
 188                 echo "Depends: $$$$DEPENDS" >> $$(I_$(1))/CONTROL/control; \
 189         )
 190         echo "Source: $(SOURCE)" >> $$(I_$(1))/CONTROL/control
 191         echo "Section: kernel" >> $$(I_$(1))/CONTROL/control
 192         echo "Priority: $(PRIORITY)" >> $$(I_$(1))/CONTROL/control
 193         echo "Maintainer: $(MAINTAINER)" >> $$(I_$(1))/CONTROL/control
 194         echo "Architecture: $(PKGARCH)" >> $$(I_$(1))/CONTROL/control
 195         echo "Description: $(DESCRIPTION)" | sed -e 's,\\,\n ,g' >> $$(I_$(1))/CONTROL/control
 196   ifneq ($(strip $(FILES)),)
 197         mkdir -p $$(I_$(1))/lib/modules/$(LINUX_VERSION)
 198         $(CP) $(FILES) $$(I_$(1))/lib/modules/$(LINUX_VERSION)/
 199   endif
 200   ifneq ($(MODULES),)
 201         export modules=; \
 202         add_module() { \
 203                 mkdir -p $$(I_$(1))/etc/modules.d; \
 204                 echo "$$$$2" > $$(I_$(1))/etc/modules.d/$$$$1-$(1); \
 205                 modules="$$$${modules:+$$$$modules }$$$$1-$(1)"; \
 206         }; \
 207         $(MODULES) \
 208         mkdir -p $$(I_$(1))/etc/modules.d; \
 209         echo "#!/bin/sh" >> $$(I_$(1))/CONTROL/postinst; \
 210         echo "[ -z \"\$$$$IPKG_INSTROOT\" ] || exit" >> $$(I_$(1))/CONTROL/postinst; \
 211         echo ". /etc/functions.sh" >> $$(I_$(1))/CONTROL/postinst; \
 212         echo "load_modules $$$$modules" >> $$(I_$(1))/CONTROL/postinst; \
 213         chmod 0755 $$(I_$(1))/CONTROL/postinst;
 214   endif
 215         $(IPKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR)
 216 endef
 217
 218 -include $(INCLUDE_DIR)/modules.mk
 219