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 KERNEL_BUILD:=1
   8
   9 include $(INCLUDE_DIR)/kernel-version.mk
  10 include $(INCLUDE_DIR)/host.mk
  11 include $(INCLUDE_DIR)/kernel.mk
  12 include $(INCLUDE_DIR)/prereq.mk
  13
  14 LINUX_CONFIG ?= ./config/default
  15
  16 -include $(TOPDIR)/target/linux/generic-$(KERNEL)/config-template
  17 -include $(LINUX_CONFIG)
  18
  19 ifneq ($(CONFIG_ATM),)
  20   FEATURES += atm
  21 endif
  22 ifneq ($(CONFIG_PCI),)
  23   FEATURES += pci
  24 endif
  25 ifneq ($(CONFIG_USB),)
  26   FEATURES += usb
  27 endif
  28 ifneq ($(CONFIG_PCMCIA),)
  29   FEATURES += pcmcia
  30 endif
  31 ifneq ($(CONFIG_VIDEO_DEV),)
  32   FEATURES += video
  33 endif
  34
  35 # remove duplicates
  36 FEATURES:=$(sort $(FEATURES))
  37
  38 ifeq ($(DUMP),1)
  39   all: dumpinfo
  40 else
  41   all: compile
  42 endif
  43
  44 ifneq (,$(findstring uml,$(BOARD)))
  45   LINUX_KARCH:=um
  46 else
  47   LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
  48         -e 's/mipsel/mips/' \
  49         -e 's/mipseb/mips/' \
  50         -e 's/powerpc/ppc/' \
  51         -e 's/sh[234]/sh/' \
  52         -e 's/armeb/arm/' \
  53   )
  54 endif
  55
  56 include $(INCLUDE_DIR)/kernel-defaults.mk
  57
  58 define Kernel/Prepare
  59         $(call Kernel/Prepare/Default)
  60 endef
  61
  62 define Kernel/Configure
  63         $(call Kernel/Configure/Default)
  64 endef
  65
  66 define Kernel/CompileModules
  67         $(call Kernel/CompileModules/Default)
  68 endef
  69
  70 define Kernel/CompileImage
  71         $(call Kernel/CompileImage/Default)
  72 endef
  73
  74 define Kernel/Clean
  75         $(call Kernel/Clean/Default)
  76 endef
  77
  78 define BuildKernel
  79   ifneq ($(LINUX_SITE),)
  80     $(DL_DIR)/$(LINUX_SOURCE):
  81                 -mkdir -p $(DL_DIR)
  82                 $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
  83   endif
  84
  85   $(LINUX_DIR)/.prepared: $(DL_DIR)/$(LINUX_SOURCE)
  86         -rm -rf $(KERNEL_BUILD_DIR)
  87         -mkdir -p $(KERNEL_BUILD_DIR)
  88         $(call Kernel/Prepare)
  89         touch $$@
  90
  91   $(LINUX_DIR)/.configured: $(LINUX_DIR)/.prepared $(LINUX_CONFIG)
  92         $(call Kernel/Configure)
  93         touch $$@
  94
  95   $(LINUX_DIR)/.modules: $(LINUX_DIR)/.configured $(LINUX_DIR)/.config FORCE
  96         $(call Kernel/CompileModules)
  97         touch $$@
  98
  99   $(LINUX_DIR)/.image: $(LINUX_DIR)/.configured FORCE
 100         $(call Kernel/CompileImage)
 101         touch $$@
 102
 103   mostlyclean: FORCE
 104         $(call Kernel/Clean)
 105
 106   ifeq ($(DUMP),1)
 107     dumpinfo:
 108                 @echo 'Target: $(BOARD)-$(KERNEL)'
 109                 @echo 'Target-Name: $(BOARDNAME) [$(KERNEL)]'
 110                 @echo 'Target-Path: $(subst $(TOPDIR)/,,$(PWD))'
 111                 @echo 'Target-Arch: $(ARCH)'
 112                 @echo 'Target-Features: $(FEATURES)'
 113                 @echo 'Linux-Version: $(LINUX_VERSION)'
 114                 @echo 'Linux-Release: $(LINUX_RELEASE)'
 115                 @echo 'Linux-Kernel-Arch: $(LINUX_KARCH)'
 116                 @echo 'Target-Description:'
 117                 @getvar $(call shvar,Target/Description)
 118                 @echo '@@'
 119                 @echo 'Default-Packages: $(DEFAULT_PACKAGES)'
 120     ifneq ($(DUMPINFO),)
 121                 @$(DUMPINFO)
 122     endif
 123   endif
 124
 125   define BuildKernel
 126   endef
 127 endef
 128
 129 define Profile/Default
 130   NAME:=
 131   PACKAGES:=
 132 endef
 133
 134 confname=$(subst .,_,$(subst -,_,$(1)))
 135 define Profile
 136   $(eval $(call Profile/Default))
 137   $(eval $(call Profile/$(1)))
 138   $(eval $(call shexport,Profile/$(1)/Config))
 139   $(eval $(call shexport,Profile/$(1)/Description))
 140   DUMPINFO += \
 141         echo "Target-Profile: $(1)"; \
 142         echo "Target-Profile-Name: $(NAME)"; \
 143         echo "Target-Profile-Packages: $(PACKAGES)"; \
 144         if [ -f ./config/profile-$(1) ]; then \
 145                 echo "Target-Profile-Kconfig: yes"; \
 146         fi; \
 147         echo "Target-Profile-Config: "; \
 148         getvar "$(call shvar,Profile/$(1)/Config)"; \
 149         echo "@@"; \
 150         echo "Target-Profile-Description:"; \
 151         getvar "$(call shvar,Profile/$(1)/Description)"; \
 152         echo "@@"; \
 153         echo;
 154   ifeq ($(CONFIG_LINUX_$(call confname,$(KERNEL)_$(1))),y)
 155     PROFILE=$(1)
 156   endif
 157 endef
 158
 159 $(eval $(call shexport,Target/Description))
 160
 161 download: $(DL_DIR)/$(LINUX_SOURCE)
 162 prepare: $(LINUX_DIR)/.configured
 163 compile: $(LINUX_DIR)/.modules
 164 menuconfig: $(LINUX_DIR)/.prepared FORCE
 165         $(call Kernel/Configure)
 166         $(SCRIPT_DIR)/config.pl '+' $(GENERIC_PLATFORM_DIR)/config-template $(LINUX_CONFIG) > $(LINUX_DIR)/.config
 167         $(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) menuconfig
 168         $(SCRIPT_DIR)/config.pl '>' $(GENERIC_PLATFORM_DIR)/config-template $(LINUX_DIR)/.config > $(LINUX_CONFIG)
 169
 170 install: $(LINUX_DIR)/.image
 171
 172 clean: FORCE
 173         rm -f $(STAMP_DIR)/.linux-compile
 174         rm -rf $(KERNEL_BUILD_DIR)
 175
 176 rebuild: FORCE
 177         @$(MAKE) mostlyclean
 178         @if [ -f $(LINUX_KERNEL) ]; then \
 179                 $(MAKE) clean; \
 180         fi
 181         @$(MAKE) compile
 182
 183