|  | # | 
|  | #    Copyright (c) 2010-2011 Nest, Inc. | 
|  | #    All rights reserved. | 
|  | # | 
|  | #    This document is the property of Nest. It is considered | 
|  | #    confidential and proprietary information. | 
|  | # | 
|  | #    This document may not be reproduced or transmitted in any form, | 
|  | #    in whole or in part, without the express written permission of | 
|  | #    Nest. | 
|  | # | 
|  | #    Description: | 
|  | #      This file is the makefile for embedded Linux "Swiss Army Knife" | 
|  | #      application, BusyBox. | 
|  | # | 
|  |  | 
|  | include pre.mak | 
|  |  | 
|  | PackageName		:= busybox | 
|  |  | 
|  | PackageExtension	:= tar.bz2 | 
|  | PackageSeparator	:= - | 
|  |  | 
|  | PackagePatchArgs	:= -p1 | 
|  |  | 
|  | PackageArchive		:= $(PackageName).$(PackageExtension) | 
|  | PackageSourceDir	:= $(PackageName)$(PackageSeparator)$(PackageVersion) | 
|  |  | 
|  | PackageBuildMakefile	= $(call GenerateBuildPaths,Makefile) | 
|  |  | 
|  | CleanPaths		+= $(PackageLicenseFile) | 
|  |  | 
|  | SOURCEDIRS                      = $(PackageSourceDir) configs | 
|  | $(PackageSourceDir)_RULE_TARGET = $(BuildDirectory)/configure | 
|  | configs_RULE_TARGET             = $(BuildDirectory)/configure | 
|  |  | 
|  | all: $(PackageDefaultGoal) | 
|  |  | 
|  | # Generate the package license contents. | 
|  |  | 
|  | $(PackageSourceDir)/LICENSE: $(BuildDirectory)/source | 
|  |  | 
|  | $(PackageLicenseFile): $(PackageSourceDir)/LICENSE | 
|  | $(copy-result) | 
|  |  | 
|  | # Extract the source from the archive and apply patches, if any. | 
|  |  | 
|  | $(PackageSourceDir): $(PackageArchive) $(PackagePatchPaths) | 
|  | $(expand-and-patch-package) | 
|  |  | 
|  | # Prepare the sources. | 
|  |  | 
|  | $(BuildDirectory)/source: | $(PackageSourceDir) | 
|  | $(Verbose)touch $@ | 
|  |  | 
|  | # Patch the sources, if necessary. | 
|  |  | 
|  | $(BuildDirectory)/patch: $(BuildDirectory)/source | 
|  | $(Verbose)touch $@ | 
|  |  | 
|  | # BusyBox has no way of explicitly setting CC, LD, OBJCOPY, et al and | 
|  | # instead relies on the value of CROSS_COMPILE. Consequently, we have | 
|  | # to ensure that 'ToolBinDir' is in 'PATH' so that the kernel build | 
|  | # infrastructure can find $(CROSS_COMPILE)gcc, $(CROSS_COMPILE)ld, et | 
|  | # al. | 
|  |  | 
|  | $(BuildDirectory)/configure $(BuildDirectory)/build $(BuildDirectory)/stage: PATH := $(PATH):$(ToolBinDir) | 
|  |  | 
|  | # Generate the package build makefile and default configuration based | 
|  | # on the build configuration. | 
|  |  | 
|  | # Configure the source for building. | 
|  |  | 
|  | $(BuildDirectory)/configure: $(BuildDirectory)/source $(CURDIR)/configs/$(BuildConfig)_defconfig | $(PackageSourceDir) $(BuildDirectory) | 
|  | $(Verbose)$(MAKE) $(JOBSFLAG) -C $(PackageSourceDir) O=$(CURDIR)/$(BuildDirectory) $(CURDIR)/configs/$(BuildConfig)_defconfig | 
|  | $(Verbose)touch $@ | 
|  |  | 
|  | # Build the source. | 
|  |  | 
|  | $(BuildDirectory)/build: $(BuildDirectory)/configure | 
|  | $(Verbose)$(MAKE) $(JOBSFLAG) -C $(BuildDirectory) busybox | 
|  | $(Verbose)touch $@ | 
|  |  | 
|  | # Stage the build to a temporary installation area. | 
|  |  | 
|  | $(BuildDirectory)/stage: $(BuildDirectory)/build | $(ResultDirectory) | 
|  | $(Verbose)$(MAKE) $(JOBSFLAG) -C $(BuildDirectory) INSTALL="$(INSTALL) $(INSTALLFLAGS)" CONFIG_PREFIX=$(ResultDirectory) install | 
|  | $(Verbose)touch $@ | 
|  |  | 
|  | .PHONY: stage | 
|  | stage: $(BuildDirectory)/stage | 
|  |  | 
|  | clean: | 
|  | $(Verbose)$(RM) $(RMFLAGS) -r $(PackageSourceDir) | 
|  | $(Verbose)$(RM) $(RMFLAGS) -r $(BuildDirectory) | 
|  | $(Verbose)$(RM) $(RMFLAGS) -r $(ResultDirectory) | 
|  |  | 
|  | include post.mak |