Makefile.include

# Copyright 2017 Julian Ingram
#
# Licensed 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.


include $(FRAMEWORK_ROOT_DIR)/boards/$(BOARD)/Makefile.board
-include $(LIBS:%=$(FRAMEWORK_ROOT_DIR)/libs/Makefile.%)

CC=xc16-gcc
BIN2HEX := xc16-bin2hex
RM := rm -rf
MKDIR := mkdir -p
APPDIR ?= $(realpath $(FRAMEWORK_ROOT_DIR)/apps/$(APP))
BINDIR ?= bin
BUILDDIR ?= build
DEPDIR ?= $(BUILDDIR)/deps
TARGET_ELF := $(BINDIR)/$(APP)_$(BOARD).elf
TARGET := $(BINDIR)/$(APP)_$(BOARD).hex
IDIRS :=  $(FRAMEWORK_ROOT_DIR)/mcu/include \
		  $(FRAMEWORK_ROOT_DIR)/mcu/$(MCU) \
		  $(FRAMEWORK_ROOT_DIR)/boards/$(BOARD) \
		  $(FRAMEWORK_ROOT_DIR)/drivers \
		  $(FRAMEWORK_ROOT_DIR)/libs
IDIRS := $(realpath $(IDIRS))
CFLAGS += -Wall -Wextra -Werror
release: CFLAGS += -O1
debug: CFLAGS += -g
CFLAGS += $(IDIRS:%=-I%/)
CFLAGS += $(DEFINES:%=-D%)
CFLAGS += -mcpu=$(DEVICE)
LDFLAGS += -Wl,-Map,$(BINDIR)/output.map,--report-mem -T p$(DEVICE).gld
DEPFLAGS = -MMD -MP -MF $(@:$(BUILDDIR)/%.o=$(DEPDIR)/%.d)
RM_ON_CLEAN := $(TARGET) $(TARGET:%.elf=%_physical.elf) $(DEPDIR) $(BUILDDIR)
RM_ON_CLEAN += $(TARGET:%.elf=%_pickit.hex) $(BINDIR)/output.map $(BINDIR)

SRCS := $(addprefix mcu/$(MCU)/,$(MCU_SRCS))
SRCS += $(addprefix boards/$(BOARD)/,$(BOARD_SRCS))
SRCS += $(addprefix apps/$(APP)/,$(APP_SRCS))
SRCS += $(addprefix libs/,$(LIBS_SRCS))

DRIVER_SRCS := $(foreach DRIVER,$(DRIVERS),$(wildcard $(FRAMEWORK_ROOT_DIR)/drivers/$(DRIVER)/*.c))
DRIVER_SRCS := $(DRIVER_SRCS:$(FRAMEWORK_ROOT_DIR)/%.c=%.c)
SRCS += $(DRIVER_SRCS)
SRCS := $(filter %.c %.S %.s, $(SRCS))

OBJS := $(SRCS:%.c=$(BUILDDIR)/%.o)
OBJS := $(OBJS:%.S=$(BUILDDIR)/%.o)
OBJS := $(OBJS:%.s=$(BUILDDIR)/%.o)
DEPS := $(OBJS:$(BUILDDIR)/%.o=$(DEPDIR)/%.d)

.PHONY: all
all: release

.PHONY: release
release: $(TARGET)
.PHONY: debug
debug: $(TARGET)

# link
$(TARGET): $(OBJS)
	@$(MKDIR) $(BINDIR)
	$(CC) -o  $(TARGET_ELF) $^ $(LDFLAGS)
	$(BIN2HEX) $(TARGET_ELF)

# compile and/or generate dep files
$(BUILDDIR)/%.o: $(FRAMEWORK_ROOT_DIR)/%.c
	@$(MKDIR) $(BUILDDIR)/$(subst $(FRAMEWORK_ROOT_DIR)/,,$(<D))
	@$(MKDIR) $(DEPDIR)/$(subst $(FRAMEWORK_ROOT_DIR)/,,$(<D))
	$(CC) $(DEPFLAGS) $(CFLAGS) -c $(realpath $<) -o $@

$(BUILDDIR)/%.o: $(FRAMEWORK_ROOT_DIR)/%.S
	@$(MKDIR) $(BUILDDIR)/$(subst $(FRAMEWORK_ROOT_DIR)/,,$(<D))
	@$(MKDIR) $(DEPDIR)/$(subst $(FRAMEWORK_ROOT_DIR)/,,$(<D))
	$(CC) $(DEPFLAGS) $(CFLAGS) -c $(realpath $<) -o $@

.PHONY: clean
clean:
	$(RM) $(RM_ON_CLEAN)

-include $(DEPS)