############################################################################
# Makefile
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.  The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################

# Handle the verbosity level first thing in the build process

# Control build verbosity
#
#  V=0:   Exit silent mode
#  V=1,2: Enable echo of commands
#  V=2:   Enable bug/verbose options in tools and scripts

ifeq ($(V),)
  MAKE := $(MAKE) -s --no-print-directory
endif

ifeq ($(V),1)
  export Q :=
else ifeq ($(V),2)
  export Q :=
else
  export Q := @
endif

# New Environment variable NXSPACE is checked first. If set, it will point
# to NuttX workspace root.

NXSPACE ?= $(realpath $(CURDIR)/..)
export NXSPACE


NXBASE := $(realpath $(NXSPACE)/nuttx)

# New BDIR variable defines the board directory.
# There are two ways to run NuttX build system:
# 1) From the board directory (preferred)
# 2) From the NuttX top directory
# In the latter case, BDIR can be ommited as the
# build entry-point will always be the NuttX top directory.

BDIR ?= ${NXBASE}

# New OUT variable will be used as the output directory.
# All the defined target should refer to this variable for their output.
# Preferably, this out variable should be externally provided, for 
# portability reasons. Rather than keep the output local to the NuttX
# source tree, this mechanism allows to specify any out-of-tree dir.

# $(NXSPACE)/build is the default output directory, and it's reserved by the 
# NuttX build system.

OUT ?= $(realpath $(NXSPACE)/build)
export OUT

# Force the BCFG to always be passed to build process.
# This new Environment variable defines the board:config to be used.

ifndef BCFG
  $(info ERROR: Board configuration is not set)
  $(info )
  $(info Usage:)
  $(info   make BCFG=<config>)
  $(info )
  $(info Examples:)
  $(info   make BCFG=nsh)

  $(error Build stopped, BCFG required.)
endif

# External code support
# EXTLIB variable to can be passed to the build system.
# EXTLIB should be the end library that is passed to the nuttx build system

ifdef EXTLIB
  TARGETS += ${EXTLIB}
endif

# Support for ROMFS image creation

ifeq (${CONFIG_FS_ROMFS},y)

  ifdef ROMFSIMG
    TARGETS += ${ROMFSIMG}
  else
    $(error ROMFSIMG is not defined by the board Makefile)
  endif

endif

menuconfig:
	menuconfig