#
#    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:
#

include pre.mak

ifeq ($(BUILD_FEATURE_NEWLIB),1)

PackageName		:= newlib

PackageExtension	:= tar.gz
PackageSeparator	:= -

PackagePatchArgs 	:= -p1

PackageVersion          := 1.20.0
PackageArchive		:= $(PackageName)$(PackageSeparator)$(PackageVersion).$(PackageExtension)
PackageSourceDir	:= $(PackageName)$(PackageSeparator)$(PackageVersion)

PackageBuildMakefile	= $(call GenerateBuildPaths,Makefile)

CleanPaths		+= $(PackageLicenseFile)

all: $(PackageDefaultGoal)

# Generate the package license contents.

#$(PackageLicenseFile): $(PackageSourceDir)/COPYRIGHT
#	$(copy-result)

# Extract the source from the archive and apply patches, if any.

$(PackageSourceDir): $(PackageArchive) $(PackagePatchPaths)
	$(expand-and-patch-package)

# Prepare the sources.

.PHONY: source
source: | $(PackageSourceDir)

# Patch the sources, if necessary.

.PHONY: patch
patch: source

# Configure the source for building.

$(PackageBuildMakefile): | $(PackageSourceDir) $(BuildDirectory)
	cd $(BuildDirectory) && \
	$(CURDIR)/$(PackageSourceDir)/configure \
		--target=arm-none-eabi \
		--prefix=/usr \
		--enable-interwork \
		--disable-newlib-supplied-syscalls \
		--disable-newlib-io-float \
		--with-gnu-ld \
		--with-gnu-as \
		--disable-shared \
		--disable-newlib-atexit-dynamic-alloc \
		--disable-multilib


.PHONY: configure
configure: source $(PackageBuildMakefile)

# Build the source.
#

.PHONY: build
build: configure | $(BuildDirectory)
	$(Verbose)unset MAKEFLAGS \
		&& $(MAKE) -C $(BuildDirectory) \
			CC_FOR_TARGET="$(CC)" \
			CXX_FOR_TARGET="$(CXX)" \
			AS_FOR_TARGET=$(AS) \
			AR_FOR_TARGET=$(AR) \
			LD_FOR_TARGET=$(LD) \
			NM_FOR_TARGET=$(NM) \
			OBJDUMP_FOR_TARGET=$(OBJDUMP) \
			RANLIB_FOR_TARGET=$(RANLIB) \
			READELF_FOR_TARGET=$(READELF) \
			STRIP_FOR_TARGET=$(STRIP) \
			CFLAGS_FOR_TARGET="-ffunction-sections -fdata-sections -DPREFER_SIZE_OVER_SPEED -D__OPTIMIZE_SIZE__ -Os -fomit-frame-pointer -mcpu=cortex-m3 -mthumb -D__thumb2__ -D__BUFSIZ__=256 -DMALLOC_LOCK_FUNCTION=__nl_malloc_lock -DMALLOC_UNLOCK_FUNCTION=__nl_malloc_unlock" \
			CCASFLAGS="-mcpu=cortex-m3 -mthumb -D__thumb2__"

.PHONY: prepare
prepare: stage

# Stage the build to a temporary installation area.
#
.PHONY: stage
stage: build | $(ResultDirectory)
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) -C $(BuildDirectory) \
		CC_FOR_TARGET="$(CC)" \
		CXX_FOR_TARGET="$(CXX)" \
		AS_FOR_TARGET=$(AS) \
		AR_FOR_TARGET=$(AR) \
		LD_FOR_TARGET=$(LD) \
		NM_FOR_TARGET=$(NM) \
		OBJDUMP_FOR_TARGET=$(OBJDUMP) \
		RANLIB_FOR_TARGET=$(RANLIB) \
		READELF_FOR_TARGET=$(READELF) \
		STRIP_FOR_TARGET=$(STRIP) \
		DESTDIR=$(ResultDirectory) \
		install


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

endif # ifeq ($(BUILD_FEATURE_NEWLIB),1)

include post.mak