toolchain/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 STAMP_PREPARED:=$(LINUX_DIR)/.prepared
  15 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
  16 include $(INCLUDE_DIR)/download.mk
  17 include $(INCLUDE_DIR)/quilt.mk
  18 include $(INCLUDE_DIR)/kernel-defaults.mk
  19
  20 define Kernel/Prepare
  21         $(call Kernel/Prepare/Default)
  22 endef
  23
  24 define Kernel/Configure
  25         $(call Kernel/Configure/Default)
  26 endef
  27
  28 define Kernel/CompileModules
  29         $(call Kernel/CompileModules/Default)
  30 endef
  31
  32 define Kernel/CompileImage
  33         $(call Kernel/CompileImage/Default)
  34 endef
  35
  36 define Kernel/Clean
  37         $(call Kernel/Clean/Default)
  38 endef
  39
  40 define Download/kernel
  41   URL:=$(LINUX_SITE)
  42   FILE:=$(LINUX_SOURCE)
  43   MD5SUM:=$(LINUX_KERNEL_MD5SUM)
  44 endef
  45
  46 define BuildKernel
  47   $(if $(QUILT),$(Build/Quilt))
  48 ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
  49   $(if $(LINUX_SITE),$(call Download,kernel))
  50 endif
  51
  52   $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
  53         -rm -rf $(KERNEL_BUILD_DIR)
  54         -mkdir -p $(KERNEL_BUILD_DIR)
  55         $(Kernel/Prepare)
  56         touch $$@
  57
  58   $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
  59         $(Kernel/Configure)
  60         touch $$@
  61
  62   $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
  63         $(Kernel/CompileModules)
  64         touch $$@
  65
  66   $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
  67         $(Kernel/CompileImage)
  68         touch $$@
  69
  70   mostlyclean: FORCE
  71         $(Kernel/Clean)
  72
  73   define BuildKernel
  74   endef
  75
  76   download: $(DL_DIR)/$(LINUX_SOURCE)
  77   prepare: $(STAMP_CONFIGURED)
  78   compile: $(LINUX_DIR)/.modules
  79         $(MAKE) -C image compile TARGET_BUILD=
  80
  81   oldconfig menuconfig: $(STAMP_PREPARED) FORCE
  82         [ -e "$(LINUX_CONFIG)" ] || touch "$(LINUX_CONFIG)"
  83         $(LINUX_CONFCMD) > $(LINUX_DIR)/.config
  84         touch $(LINUX_CONFIG)
  85         $(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
  86         $(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG)
  87         $(Kernel/Configure)
  88
  89   install: $(LINUX_DIR)/.image
  90         TARGET_BUILD="" $(MAKE) -C image compile install
  91
  92   clean: FORCE
  93         rm -rf $(KERNEL_BUILD_DIR)
  94
  95   rebuild: FORCE
  96         @$(MAKE) mostlyclean
  97         @if [ -f $(LINUX_KERNEL) ]; then \
  98                 $(MAKE) clean; \
  99         fi
 100         @$(MAKE) compile
 101
 102   image-prereq:
 103         @$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
 104
 105   prereq: image-prereq
 106
 107 endef