#
#    Copyright (c) 2012 Nest Labs, 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 make file for LwIP, a Lightweight IPv4-
#      and IPv6 TCP/IP stack.
#

BuildConfigSpecialized			:= Yes
BuildProductSpecialized 		:= Yes

include pre.mak

ifeq ($(BUILD_FEATURE_LWIP),1)

PackageRoot				:= .

PackageName				:= lwip

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

GeneratePackagePaths			= $(addprefix $(call Slashify,$(PackageSourceDir)),$(1))

LicenseSourceFile			:= $(PackageSourceDir)/COPYING

all: $(PackageDefaultGoal)

# Generate the package license contents.

$(LicenseSourceFile): source

$(PackageLicenseFile): $(LicenseSourceFile)
	$(copy-result)

# We are building this package from version-controlled 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

# Configure the source for building.

.PHONY: configure
configure: source

# Build the source.

.PHONY: build
build: configure

.PHONY: stage stage-headers
stage: build | $(ResultDirectory)
stage: stage-headers

lwip_API_PATHS			= src/api/api_lib.c		\
				  src/api/api_msg.c		\
				  src/api/err.c			\
				  src/api/netbuf.c		\
				  src/api/netdb.c		\
				  src/api/netifapi.c		\
				  src/api/sockets.c		\
				  src/api/tcpip.c

lwip_CORE_PATHS			= src/core/def.c		\
				  src/core/dhcp.c		\
				  src/core/dns.c		\
				  src/core/inet_chksum.c	\
				  src/core/init.c		\
				  src/core/ipv4/autoip.c	\
				  src/core/ipv4/icmp.c		\
				  src/core/ipv4/igmp.c		\
				  src/core/ipv4/ip4.c		\
				  src/core/ipv4/ip4_addr.c	\
				  src/core/ipv4/ip_frag.c	\
				  src/core/ipv6/dhcp6.c		\
				  src/core/ipv6/ethip6.c	\
				  src/core/ipv6/icmp6.c		\
				  src/core/ipv6/inet6.c		\
				  src/core/ipv6/ip6.c		\
				  src/core/ipv6/ip6_addr.c	\
				  src/core/ipv6/ip6_frag.c	\
				  src/core/ipv6/mld6.c		\
				  src/core/ipv6/nd6.c		\
				  src/core/mem.c		\
				  src/core/memp.c		\
				  src/core/netif.c		\
				  src/core/pbuf.c		\
				  src/core/raw.c		\
				  src/core/stats.c		\
				  src/core/sys.c		\
				  src/core/tcp.c		\
				  src/core/tcp_in.c		\
				  src/core/tcp_out.c		\
				  src/core/timers.c		\
				  src/core/udp.c

lwip_NETIF_PATHS		= src/netif/etharp.c

lwip_SOURCE_PATHS		= $(lwip_API_PATHS) 		\
				  $(lwip_CORE_PATHS)		\
				  $(lwip_NETIF_PATHS)

lwip_INCLUDE_DIRS		= src/include			\
				  src/include/ipv4		\
				  src/include/ipv6

lwip_INCLUDE_PATHS		= $(call GeneratePackagePaths,$(lwip_INCLUDE_DIRS))

lwip_PACKAGE_SOURCE_PATHS	= $(call GeneratePackagePaths,$(lwip_SOURCE_PATHS))

# Tell make where to search for the sources, cleaning up the leading
# ./ strictly for cosmetic display purposes in the process.

VPATH				= $(subst ./,,$(dir $(lwip_PACKAGE_SOURCE_PATHS)))


ARCHIVES			= lwip

lwip_SOURCES			= $(notdir $(lwip_PACKAGE_SOURCE_PATHS))

ifeq ($(WeaveTest),1)
lwip_INCLUDES			= $(lwip_INCLUDE_PATHS)		\
				  os/freertos		\
				  products			\
				  products/$(BuildProduct)
else
lwip_INCLUDES			= $(lwip_INCLUDE_PATHS)		\
				  os/$(TargetOS)		\
				  products			\
				  products/$(BuildProduct)
endif

lwip_CPPFLAGS			= -Wno-error=implicit-function-declaration \
				  -Wno-error=strict-prototypes \

-include ./products/$(BuildProduct)/lwip.mak

LwIPHeaderSourcePaths		= $(wildcard $(addsuffix /*/*.h,$(lwip_INCLUDE_PATHS)))
LwIPHeaderSourceStems		= $(subst $(PackageSourceDir)/src/include,,$(LwIPHeaderSourcePaths))
LwIPHeaderSourcePattern		= $(call GeneratePackagePaths,src/include/%)
LwIPHeaderResultPaths		= $(call GenerateResultPaths,,$(LwIPHeaderSourceStems))
LwIPHeaderResultPattern		= $(call GenerateResultPaths,,%)

LwIPOptionHeaderName		= lwipopts.h
LwIPOptionHeaderStems		= $(LwIPOptionHeaderName) common/$(LwIPOptionHeaderName) $(BuildProduct)/$(LwIPOptionHeaderName)
LwIPOptionHeaderSourceDirectory	= products
LwIPOptionHeaderSourcePaths	= $(addprefix $(call Slashify,$(LwIPOptionHeaderSourceDirectory)),$(LwIPOptionHeaderStems))
LwIPOptionHeaderResultDirectory = $(ResultDirectory)
LwIPOptionHeaderResultPaths	= $(call GenerateResultPaths,,$(LwIPOptionHeaderStems))

LwIPArchHeaderNames		= cc.h perf.h sys_arch.h
ifeq ($(WeaveTest),1)
LwIPArchHeaderSourcePaths	= $(addprefix os/freertos/arch/,$(LwIPArchHeaderNames))
LwIPArchHeaderSourceStems	= $(subst os/freertos/,,$(LwIPArchHeaderSourcePaths))
LwIPArchHeaderSourcePattern	= os/freertos/%
else
LwIPArchHeaderSourcePaths	= $(addprefix os/$(TargetOS)/arch/,$(LwIPArchHeaderNames))
LwIPArchHeaderSourceStems	= $(subst os/$(TargetOS)/,,$(LwIPArchHeaderSourcePaths))
LwIPArchHeaderSourcePattern	= os/$(TargetOS)/%
endif
LwIPArchHeaderResultPaths	= $(call GenerateResultPaths,,$(LwIPArchHeaderSourceStems))
LwIPArchHeaderResultPattern	= $(call GenerateResultPaths,,%)

ResultPaths			+= $(LwIPHeaderResultPaths)		\
				   $(LwIPOptionHeaderResultPaths)	\
				   $(LwIPArchHeaderResultPaths)

stage-headers: $(LwIPHeaderResultPaths) $(LwIPOptionHeaderResultPaths) $(LwIPArchHeaderResultPaths)

$(LwIPHeaderResultPaths): $(LwIPHeaderResultPattern): $(LwIPHeaderSourcePattern)
	$(install-result)

$(LwIPOptionHeaderResultPaths): $(LwIPOptionHeaderResultDirectory)/%: $(LwIPOptionHeaderSourceDirectory)/% | $(LwIPOptionHeaderResultDirectory)
	$(install-result)

$(LwIPArchHeaderResultPaths): $(LwIPArchHeaderResultPattern): $(LwIPArchHeaderSourcePattern)
	$(install-result)

.PHONY: foo
foo:
	$(Echo) $(LwIPOptionHeaderResultPaths)

endif #ifeq ($(BUILD_FEATURE_LWIP),1)


include post.mak