Makefile

#
#    Copyright (c) 2010 Nest Labs, Inc.
#    All rights reserved.
#
#    This document is the property of Nest Labs. 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 Labs.
#
#    Description:
#      This file is the make file for X-Loader, an initial program
#      loader (IPL) for embedded boards based on Texas Instruments
#      OMAP processors.
#

include pre.mak

PackageRoot		:= .

PackageName		:= x-loader

PackageSeparator	:= 

PackageVersion		:= 
PackageSourceDir	:= $(PackageRoot)/$(PackageName)$(PackageSeparator)$(PackageVersion)

PackageBuildMakefile	= $(call GenerateBuildPaths,include/config.mk)

CleanPaths		+= $(PackageLicenseFile)

all: $(PackageDefaultGoal)

# Generate the package license contents.

$(PackageSourceDir)/README: source

$(PackageLicenseFile): $(PackageSourceDir)/README
	$(Echo) "Extracting \"$(call GenerateBuildRootEllipsedPath,$(@))\""
	$(Verbose)$(SED) -n -e '10,25p' < $< > $@

# We are building this package from version-controller source, so
# there is nothing to do for this target goal.

$(PackageSourceDir):

# Prepare the sources.

.PHONY: source
source: | $(PackageSourceDir)

# Patch the sources, if necessary.

.PHONY: patch
patch: source

# X-Loader 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.

configure build stage: PATH := $(PATH):$(ToolBinDir)
configure build stage: CROSS_COMPILE := $(CCACHE) $(CROSS_COMPILE)

# Generate the package build makefile.

$(PackageBuildMakefile): | $(PackageSourceDir) $(BuildDirectory)
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) $(JOBSFLAG) -C $(PackageSourceDir) O=$(CURDIR)/$(BuildDirectory) \
	INSTALL="$(INSTALL) $(INSTALLFLAGS)" \
	$(XLoaderProductionConfig)

# Configure the source for building.

.PHONY: configure
configure: source $(PackageBuildMakefile)

# Build the source.

.PHONY: build
build: configure
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) $(JOBSFLAG) -C $(PackageSourceDir) O=$(CURDIR)/$(BuildDirectory) \
	INSTALL="$(INSTALL) $(INSTALLFLAGS)" \
	all

# Stage the build to a temporary installation area.
#
# X-Loader does not support a notion of installing, so we have to
# cherry-pick the components we want from the build directory and
# copy/install them to the results directory.

.PHONY: stage
stage: copy

.PHONY: copy
$(call GenerateResultPaths,fw/x-loader,x-load.bin) copy: build | $(ResultDirectory)
	$(Verbose)cp -f $(wildcard $(call GenerateBuildPaths,x-load*)) $(ResultDirectory)
	$(Verbose)cp -f $(call GenerateBuildPaths,System.map) $(ResultDirectory)

clean:
	$(Verbose)$(RM) $(RMFLAGS) -r $(BuildDirectory)
	$(Verbose)$(RM) $(RMFLAGS) -r $(ResultDirectory)

include post.mak