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 # For target profile selection - the default set
   9 DEFAULT_PACKAGES:=base-files libgcc uclibc bridge busybox dnsmasq dropbear iptables mtd ppp ppp-mod-pppoe mtd kmod-ipt-nathelper
  10 ifneq ($(KERNEL),2.4)
  11   DEFAULT_PACKAGES+=udevtrigger hotplug2
  12 endif
  13
  14 KERNELNAME=
  15 ifneq (,$(findstring x86,$(BOARD)))
  16   KERNELNAME="bzImage"
  17 endif
  18 ifneq (,$(findstring rdc,$(BOARD)))
  19   KERNELNAME="bzImage"
  20 endif
  21 ifneq (,$(findstring ppc,$(BOARD)))
  22   KERNELNAME="uImage"
  23 endif
  24
  25 KERNEL_MAKEOPTS := -C $(LINUX_DIR) \
  26         CROSS_COMPILE="$(KERNEL_CROSS)" \
  27         ARCH="$(LINUX_KARCH)" \
  28         CONFIG_SHELL="$(BASH)"
  29
  30 define Kernel/Prepare/Default
  31         bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
  32         if [ -d $(GENERIC_PLATFORM_DIR)/files ]; then $(CP) $(GENERIC_PLATFORM_DIR)/files/* $(LINUX_DIR)/; fi
  33         if [ -d $(GENERIC_PLATFORM_DIR)/patches ]; then $(PATCH) $(LINUX_DIR) $(GENERIC_PLATFORM_DIR)/patches; fi
  34         if [ -d ./files ]; then $(CP) ./files/* $(LINUX_DIR)/; fi
  35         if [ -d ./patches ]; then $(PATCH) $(LINUX_DIR) ./patches; fi
  36 endef
  37
  38 define Kernel/Configure/2.4
  39         $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
  40         $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" oldconfig include/linux/compile.h include/linux/version.h
  41         $(MAKE) $(KERNEL_MAKEOPTS) dep
  42 endef
  43 define Kernel/Configure/2.6
  44         -$(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" oldconfig prepare scripts
  45 endef
  46 define Kernel/Configure/Default
  47         @if [ -f "./config/profile-$(PROFILE)" ]; then \
  48                 $(SCRIPT_DIR)/config.pl '+' $(GENERIC_PLATFORM_DIR)/config-template '+' $(LINUX_CONFIG) ./config/profile-$(PROFILE) > $(LINUX_DIR)/.config; \
  49         else \
  50                 $(SCRIPT_DIR)/config.pl '+' $(GENERIC_PLATFORM_DIR)/config-template $(LINUX_CONFIG) > $(LINUX_DIR)/.config; \
  51         fi
  52         $(call Kernel/Configure/$(KERNEL))
  53         rm -rf $(KERNEL_BUILD_DIR)/modules
  54         @rm -f $(BUILD_DIR)/linux
  55         ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
  56 endef
  57
  58 define Kernel/CompileModules/Default
  59         rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
  60         $(MAKE) -j$(CONFIG_JLEVEL) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" modules
  61 endef
  62
  63 ifeq ($(KERNEL),2.6)
  64   ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  65     define Kernel/SetInitramfs
  66                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  67                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  68                 echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
  69                 echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
  70                 echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
  71     endef
  72   else
  73     define Kernel/SetInitramfs
  74                 mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
  75                 grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
  76                 rm -f $(BUILD_DIR)/root/init
  77                 echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
  78     endef
  79   endif
  80 endif
  81 define Kernel/CompileImage/Default
  82         $(call Kernel/SetInitramfs)
  83         $(MAKE) -j$(CONFIG_JLEVEL) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" $(KERNELNAME)
  84         $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
  85         $(KERNEL_CROSS)objcopy -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
  86 endef
  87
  88 define Kernel/Clean/Default
  89         rm -f $(LINUX_DIR)/.linux-compile
  90         rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
  91         rm -f $(LINUX_KERNEL)
  92         $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
  93 endef
  94
  95