include/kernel-defaults.mk

   1 #
   2 # Copyright (C) 2006-2007 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 # default device type
   9 DEVICE_TYPE?=router
  10
  11 # Default packages - the really basic set
  12 DEFAULT_PACKAGES:=base-files libgcc uclibc busybox dropbear mtd mtd
  13 # For router targets
  14 DEFAULT_PACKAGES.router:=dnsmasq iptables ppp ppp-mod-pppoe iptables kmod-ipt-nathelper bridge
  15
  16 # Additional packages for Linux 2.6
  17 ifneq ($(KERNEL),2.4)
  18   DEFAULT_PACKAGES += udevtrigger hotplug2
  19 endif
  20
  21 # Add device specific packages
  22 DEFAULT_PACKAGES += $(DEFAULT_PACKAGES.$(DEVICE_TYPE))
  23
  24 KERNELNAME=
  25 ifneq (,$(findstring x86,$(BOARD)))
  26   KERNELNAME="bzImage"
  27 endif
  28 ifneq (,$(findstring rdc,$(BOARD)))
  29   KERNELNAME="bzImage"
  30 endif
  31 ifneq (,$(findstring ppc,$(BOARD)))
  32   KERNELNAME="uImage"
  33 endif
  34 ifneq (,$(findstring avr32,$(BOARD)))
  35   KERNELNAME="uImage"
  36 endif
  37
  38 KERNEL_MAKEOPTS := -C $(LINUX_DIR) \
  39         CROSS_COMPILE="$(KERNEL_CROSS)" \
  40         ARCH="$(LINUX_KARCH)" \
  41         CONFIG_SHELL="$(BASH)"
  42
  43 # defined in quilt.mk
  44 Kernel/Patch:=$(Kernel/Patch/Default)
  45 define Kernel/Prepare/Default
  46         bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
  47         $(Kernel/Patch)
  48 endef
  49
  50 define Kernel/Configure/2.4
  51         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  52         $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" oldconfig include/linux/compile.h include/linux/version.h
  53         $(MAKE) $(KERNEL_MAKEOPTS) dep
  54 endef
  55 define Kernel/Configure/2.6
  56         -$(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" oldconfig prepare scripts
  57 endef
  58 define Kernel/Configure/Default
  59         $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
  60         $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override
  61         $(SCRIPT_DIR)/kconfig.pl 'm+' $(LINUX_DIR)/.config.target $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
  62         $(call Kernel/Configure/$(KERNEL))
  63         rm -rf $(KERNEL_BUILD_DIR)/modules
  64         @rm -f $(BUILD_DIR)/linux
  65         ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
  66 endef
  67
  68 define Kernel/CompileModules/Default
  69         rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
  70         $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" modules
  71 endef
  72
  73 ifeq ($(KERNEL),2.6)
  74   ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  75     define Kernel/SetInitramfs
  76                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  77                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  78                 echo 'CONFIG_INITRAMFS_SOURCE="$(TARGET_DIR)"' >> $(LINUX_DIR)/.config
  79                 echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
  80                 echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
  81     endef
  82   else
  83     define Kernel/SetInitramfs
  84                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  85                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  86                 rm -f $(TARGET_DIR)/init
  87                 echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
  88     endef
  89   endif
  90 endif
  91 define Kernel/CompileImage/Default
  92         $(call Kernel/SetInitramfs)
  93         $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" $(KERNELNAME)
  94         $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
  95         $(KERNEL_CROSS)objcopy -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
  96 endef
  97
  98 define Kernel/Clean/Default
  99         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
 100         rm -f $(LINUX_KERNEL)
 101         $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
 102 endef
 103
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