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 INITRAMFS_EXTRA_FILES ?= $(GENERIC_PLATFORM_DIR)/image/initramfs-base-files.txt
  44
  45 ifneq (,$(KERNEL_CC))
  46   KERNEL_MAKEOPTS += CC="$(KERNEL_CC)"
  47 endif
  48
  49 # defined in quilt.mk
  50 Kernel/Patch:=$(Kernel/Patch/Default)
  51 define Kernel/Prepare/Default
  52         bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
  53         $(Kernel/Patch)
  54         $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
  55 endef
  56
  57 define Kernel/Configure/2.4
  58         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  59         $(MAKE) $(KERNEL_MAKEOPTS) oldconfig include/linux/compile.h include/linux/version.h
  60         $(MAKE) $(KERNEL_MAKEOPTS) dep
  61 endef
  62 define Kernel/Configure/2.6
  63         -$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts
  64 endef
  65 define Kernel/Configure/Default
  66         $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
  67         $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override
  68         $(SCRIPT_DIR)/kconfig.pl 'm+' $(LINUX_DIR)/.config.target $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
  69         $(call Kernel/Configure/$(KERNEL))
  70         rm -rf $(KERNEL_BUILD_DIR)/modules
  71 endef
  72
  73 define Kernel/CompileModules/Default
  74         rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
  75         $(MAKE) $(KERNEL_MAKEOPTS) modules
  76 endef
  77
  78 ifeq ($(KERNEL),2.6)
  79   ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  80     define Kernel/SetInitramfs
  81                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  82                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  83                 echo 'CONFIG_INITRAMFS_SOURCE="$(strip $(TARGET_DIR) $(INITRAMFS_EXTRA_FILES))"' >> $(LINUX_DIR)/.config
  84                 echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
  85                 echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
  86     endef
  87   else
  88     define Kernel/SetInitramfs
  89                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  90                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  91                 rm -f $(TARGET_DIR)/init
  92                 echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
  93     endef
  94   endif
  95 endif
  96 define Kernel/CompileImage/Default
  97         $(call Kernel/SetInitramfs)
  98         $(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME)
  99         $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
 100         $(KERNEL_CROSS)objcopy -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
 101 endef
 102
 103 define Kernel/Clean/Default
 104         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
 105         rm -f $(LINUX_KERNEL)
 106         $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
 107 endef
 108
 109