include/kernel-build.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 include $(INCLUDE_DIR)/host.mk
   8 include $(INCLUDE_DIR)/prereq.mk
   9
  10 ifneq ($(DUMP),1)
  11   all: compile
  12 endif
  13
  14 export QUILT=1
  15 STAMP_PREPARED:=$(LINUX_DIR)/.prepared
  16 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
  17 include $(INCLUDE_DIR)/download.mk
  18 include $(INCLUDE_DIR)/quilt.mk
  19 include $(INCLUDE_DIR)/kernel-defaults.mk
  20
  21 define Kernel/Prepare
  22         $(call Kernel/Prepare/Default)
  23 endef
  24
  25 define Kernel/Configure
  26         $(call Kernel/Configure/Default)
  27 endef
  28
  29 define Kernel/CompileModules
  30         $(call Kernel/CompileModules/Default)
  31 endef
  32
  33 define Kernel/CompileImage
  34         $(call Kernel/CompileImage/Default)
  35 endef
  36
  37 define Kernel/Clean
  38         $(call Kernel/Clean/Default)
  39 endef
  40
  41 define Download/kernel
  42   URL:=$(LINUX_SITE)
  43   FILE:=$(LINUX_SOURCE)
  44   MD5SUM:=$(LINUX_KERNEL_MD5SUM)
  45 endef
  46
  47 define BuildKernel
  48   $(if $(QUILT),$(Build/Quilt))
  49   $(if $(LINUX_SITE),$(call Download,kernel))
  50
  51   $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
  52         -rm -rf $(KERNEL_BUILD_DIR)
  53         -mkdir -p $(KERNEL_BUILD_DIR)
  54         $(Kernel/Prepare)
  55         touch $$@
  56
  57   $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
  58         $(Kernel/Configure)
  59         touch $$@
  60
  61   $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
  62         $(Kernel/CompileModules)
  63         touch $$@
  64
  65   $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
  66         $(Kernel/CompileImage)
  67         touch $$@
  68
  69   mostlyclean: FORCE
  70         $(Kernel/Clean)
  71
  72   define BuildKernel
  73   endef
  74
  75   download: $(DL_DIR)/$(LINUX_SOURCE)
  76   prepare: $(STAMP_CONFIGURED)
  77   compile: $(LINUX_DIR)/.modules
  78         $(MAKE) -C image compile TARGET_BUILD=
  79
  80   oldconfig menuconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
  81         [ -e "$(LINUX_CONFIG)" ] || touch "$(LINUX_CONFIG)"
  82         $(LINUX_CONFCMD) > $(LINUX_DIR)/.config
  83         touch $(LINUX_CONFIG)
  84         $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
  85         $(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG))
  86         $(Kernel/Configure)
  87
  88   install: $(LINUX_DIR)/.image
  89         +$(MAKE) -C image compile install TARGET_BUILD=
  90
  91   clean: FORCE
  92         rm -rf $(KERNEL_BUILD_DIR)
  93
  94   image-prereq:
  95         @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
  96
  97   prereq: image-prereq
  98
  99 endef