# Copyright (C) 2013-2015 Czech Technical University in Prague
#
# Authors:
#     - Michal Sojka <sojkam1@fel.cvut.cz>
#
# This document contains proprietary information belonging to Czech
# Technical University in Prague. Passing on and copying of this
# document, and communication of its contents is not permitted
# without prior written authorization.
#
# File : Makefile.rules.arm
#
# This file contains variables and rules specific for compilation for
# ARM platforms.

makefile_rules_arm_dir := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))

ifeq ($(TARGET_CFLAGS),)
$(error "Makefile.config must be included before this file")
endif

# Code composer studio sets this variable when it invokes make. Let's use it
# as a hint for where is the compiler installed.
CCS_UTILS_DIR ?= $(or $(wildcard /opt/ti/ccsv5/utils),\
					  $(error Please set CCS_UTILS_DIR variable, e.g. by running 'make CCS_UTILS_DIR=$$HOME/ti/ccsv5/utils'))

ARM_COMPILER_DIR ?= $(dir $(CCS_UTILS_DIR))/tools/compiler/arm_5.1.1

CC=$(ARM_COMPILER_DIR)/bin/armcl
AR=$(ARM_COMPILER_DIR)/bin/armar
LD=$(CC)

# Include definition of $(rpp_lib_INCLUDES)
include $(makefile_rules_arm_dir)/../Makefile.var

# Include UPPERCASE function
include $(makefile_rules_dir)/../common.mk

# Construct target specific CFLAGS. Start from what's in Makefile.config.
RPP_TARGET_CFLAGS = $(TARGET_CFLAGS)

# Add -DTARGET_<NAME>
RPP_TARGET_CFLAGS += -DTARGET_$(call UPPERCASE,$(TARGET))

# Then add -DTARGET_HAS_xxx for each make variable named TARGET_HAS_*
# having value 'y'
TARGET_HAS_NAMES = $(filter TARGET_HAS_%,$(.VARIABLES))
RPP_TARGET_CFLAGS += $(foreach name,$(TARGET_HAS_NAMES),$(if $(filter y,$($(name))),-D$(name)))

RPP_CFLAGS = $(RPP_TARGET_CFLAGS) --gcc -I$(ARM_COMPILER_DIR)/include	\
		$(rpp_lib_INCLUDES:%=-I$(makefile_rules_arm_dir)/../%)			\
		--diag_warning=225 --display_error_number --diag_wrap=off		\
		--gen_func_subsections=on --enum_type=packed

RPP_MAKE_CFLAGS = \
		--preproc_dependency=$(@:%=%.dep) --obj_directory=$(dir $@)	\
		--preproc_with_compile

RPP_COMPILE_CMD = $(CC) $(RPP_CFLAGS) $(RPP_MAKE_CFLAGS) $<

BUILD_DIR ?= Debug
RPP_LIB_DIR = $(makefile_rules_arm_dir)/$(TARGET)/$(BUILD_DIR)

RPP_LDFLAGS = \
		--run_linker -m"${@:%=%.map}" $(TARGET_LDFLAGS) --diag_wrap=on	\
		--reread_libs --warn_sections --display_error_number			\
		--rom_model --search_path=$(ARM_COMPILER_DIR)/lib				\
		--generate_dead_funcs_list=$(@:%=%.deadfuncs.xml)				\
		--stack_size=0x800

RPP_LDLIBS = $(makefile_rules_arm_dir)/$(TARGET)/$(TARGET_LDCMD) -l$(RPP_LIB_DIR)/rpp-lib.lib $(TARGET_LDLIBS)

# Do not define any rules when compiling Simulink models
ifeq ($(MATLAB_ROOT),)
$(RPP_LIB_DIR)/rpp-lib.lib:
	$(MAKE) -C $(dir $@)
endif