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 ifneq (,$(KERNEL_CC))
  44   KERNEL_MAKEOPTS += CC="$(KERNEL_CC)"
  45 endif
  46
  47 # defined in quilt.mk
  48 Kernel/Patch:=$(Kernel/Patch/Default)
  49 define Kernel/Prepare/Default
  50         bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
  51         $(Kernel/Patch)
  52         $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
  53 endef
  54
  55 define Kernel/Configure/2.4
  56         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  57         $(MAKE) $(KERNEL_MAKEOPTS) oldconfig include/linux/compile.h include/linux/version.h
  58         $(MAKE) $(KERNEL_MAKEOPTS) dep
  59 endef
  60 define Kernel/Configure/2.6
  61         -$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts
  62 endef
  63 define Kernel/Configure/Default
  64         $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
  65         $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override
  66         $(SCRIPT_DIR)/kconfig.pl 'm+' $(LINUX_DIR)/.config.target $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
  67         $(call Kernel/Configure/$(KERNEL))
  68         rm -rf $(KERNEL_BUILD_DIR)/modules
  69 endef
  70
  71 define Kernel/CompileModules/Default
  72         rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
  73         $(MAKE) $(KERNEL_MAKEOPTS) modules
  74 endef
  75
  76 ifeq ($(KERNEL),2.6)
  77   ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  78     define Kernel/SetInitramfs
  79                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  80                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  81                 echo 'CONFIG_INITRAMFS_SOURCE="$(TARGET_DIR)"' >> $(LINUX_DIR)/.config
  82                 echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
  83                 echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
  84     endef
  85   else
  86     define Kernel/SetInitramfs
  87                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  88                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  89                 rm -f $(TARGET_DIR)/init
  90                 echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
  91     endef
  92   endif
  93 endif
  94 define Kernel/CompileImage/Default
  95         $(call Kernel/SetInitramfs)
  96         $(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME)
  97         $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
  98         $(KERNEL_CROSS)objcopy -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
  99 endef
 100
 101 define Kernel/Clean/Default
 102         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
 103         rm -f $(LINUX_KERNEL)
 104         $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
 105 endef
 106
 107