Commit 7521f373 authored by Ulf Samuelsson's avatar Ulf Samuelsson
Browse files

Add hooks for creating your own board support package

parent 157d8dec

Makefile

+9 −0
Original line number Diff line number Diff line
@@ -35,11 +35,20 @@ noconfig_targets:=menuconfig config oldconfig randconfig \ 


# Pull in the user's configuration file

ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)

ifeq ($(BOARD),)

-include $(TOPDIR).config

else

-include $(TOPDIR)/local/$(BOARD)/$(BOARD).config

endif

endif

ifneq ($(BUILDROOT_DL_DIR),)

BR2_DL_DIR:=$(BUILDROOT_DL_DIR)

endif

ifneq ($(BUILDROOT_LOCAL),)

LOCAL:=$(BUILDROOT_LOCAL)

else

LOCAL:=local

endif



# To put more focus on warnings, be less verbose as default

# Use 'make V=1' to see the full commands

docs/buildroot.html

+38 −0
Original line number Diff line number Diff line
@@ -170,6 +170,44 @@ 
    tool. 

    The file is stored in the "binaries/<code>$(PROJECT)</code>/" directory</p>



    <h3><a name="local_board_support" id="local_board_support"></a>

    Creating your own board support</h3>



    <p>Once a package has been unpacked, it is possible to manually update

    configuration files. Buildroot can automatically save the configuration

    of buildroot, linux, busybox, uclibc and u-boot in "local/$(PROJECT) by 

    using the command:

    </p>



<pre>

 $ make saveconfig

</pre>



     <p>Once a buildroot configuration has been created by saveconfig, 

     the default "$(TOPDIR)/.config" file can be overridden by</p>



<pre>

 $ make BOARD=&lt;project&gt;

</pre>



    <p>Buildroot will then use "local/&lt;project&gt;/&lt;project&gt;.config"

    instead of ".config". </p>



    <p>If you want to modify your board, you can copy the project configuration

     file to ".config" by using the command:</p> 



<pre>

 $ make BOARD=&lt;project&gt; getconfig

</pre>



    <p>You can share your custom board support directory between several buildroot trees

    by setting the environment variable <code>BUILDROOT_LOCAL</code> to this directory,

    </p> 





    <h3><a name="offline_builds" id="offline_builds"></a>

    Offline builds</h3>



    <p>If you intend to do an offline-build and just want to download all

    sources that you previously selected in &quot;make menuconfig&quot; then

    issue:</p>

project/project.mk

+28 −1
Original line number Diff line number Diff line 
PROJECT_FILE:=$(LOCAL)/$(PROJECT)/$(PROJECT).config



.PHONY: target-host-info



.PHONY: target-host-info  saveconfig getconfig



target-host-info: $(TARGET_DIR)/etc/issue $(TARGET_DIR)/etc/hostname
@@ -12,3 +14,28 @@ $(TARGET_DIR)/etc/issue: .config 
$(TARGET_DIR)/etc/hostname: .config

	mkdir -p $(TARGET_DIR)/etc

	echo "$(TARGET_HOSTNAME)" > $(TARGET_DIR)/etc/hostname



saveconfig: $(CONFIG)/conf

	mkdir -p $(LOCAL)/$(PROJECT)

	-cp .config $(PROJECT_FILE)

	if [ -f $(LINUX26_DIR)/.config ] ; then \

		cp $(LINUX26_DIR)/.config $(LOCAL)/$(PROJECT)/linux-$(LINUX26_VERSION).config ; \

		$(SED) '/BR2_PACKAGE_LINUX_KCONFIG/d' $(PROJECT_FILE) ; \

		echo "BR2_PACKAGE_LINUX_KCONFIG:=$(LOCAL)/$(PROJECT)/linux-$(LINUX26_VERSION).config" >> $(PROJECT_FILE)	; \

	fi

	if [ -f $(BUSYBOX_DIR)/.config ] ; then \

		cp $(BUSYBOX_DIR)/.config $(LOCAL)/$(PROJECT)/busybox-$(BUSYBOX_VERSION).config ; \

		$(SED) '/BR2_PACKAGE_BUSYBOX_CONFIG/d' $(PROJECT_FILE) ; \

		echo "BR2_PACKAGE_BUSYBOX_CONFIG:=$(LOCAL)/$(PROJECT)/busybox-$(BUSYBOX_VERSION).config" >> $(PROJECT_FILE) ; \

	fi

	if [ -f $(UCLIBC_DIR)/.config ] ; then \

		cp $(UCLIBC_DIR)/.config $(LOCAL)/$(PROJECT)/uclibc-$(UCLIBC_VER).config ; \

		$(SED) '/BR2_UCLIBC_CONFIG/d' $(PROJECT_FILE) ; \

		echo "BR2_UCLIBC_CONFIG:=$(LOCAL)/$(PROJECT)/uclibc-$(UCLIBC_VER).config" >> $(PROJECT_FILE) ; \

	fi

	if [ -f $(UBOOT_DIR)/include/configs/$(PROJECT).h ] ; then \

		cp $(UBOOT_DIR)/include/configs/$(PROJECT).h $(LOCAL)/$(PROJECT)/u-boot/$(PROJECT).h ; \

	fi



getconfig: $(CONFIG)/conf

	-cp $(LOCAL)/$(PROJECT)/$(PROJECT).config .config