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##
## This file is part of the libusbhost project.
## Imported and adopted from libopencm3 project.
##
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
## Copyright (C) 2014 Amir Hammad <amir.hammad@hotmail.com>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library. If not, see <http://www.gnu.org/licenses/>.
##
BINARY = demo
BINARY := $(addprefix build/, demo)
LIBUSBHOSTNAME = usbhost
LIBUSBHOST := $(addprefix build/lib, $(LIBUSBHOSTNAME))
LIBNAME = opencm3_stm32f4
DEFS = -DSTM32F4
# load user config
include config.mk
DEFS += $(USER_CONFIG)
ifdef USART_DEBUG
DEFS += -DUSART_DEBUG
endif
DEFS += -Iinclude
LDSCRIPT = lib$(LIBNAME).ld
SRCDIR = src
OPENCM3_DIR ?= ./libopencm3
FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mfp16-format=alternative
ARCH_FLAGS = -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
################################################################################
# OpenOCD specific variables
OOCD ?= openocd
OOCD_INTERFACE ?= stlink-v2
OOCD_BOARD ?= stm32f4discovery
################################################################################
# Black Magic Probe specific variables
# Set the BMP_PORT to a serial port and then BMP is used for flashing
BMP_PORT ?=
################################################################################
# texane/stlink specific variables
#STLINK_PORT ?= :4242
# Be silent per default, but 'make V=1' will show all compiler calls.
ifneq ($(V),1)
Q := @
NULL := 2>/dev/null
endif
###############################################################################
# Executables
PREFIX ?= arm-none-eabi
CC := $(PREFIX)-gcc
CXX := $(PREFIX)-g++
LD := $(PREFIX)-gcc
AR := $(PREFIX)-ar
AS := $(PREFIX)-as
OBJCOPY := $(PREFIX)-objcopy
OBJDUMP := $(PREFIX)-objdump
GDB := $(PREFIX)-gdb
STFLASH = $(shell which st-flash)
STYLECHECK := /checkpatch.pl
STYLECHECKFLAGS := --no-tree -f --terse --mailback
STYLECHECKFILES := $(shell find . -name '*.[ch]')
###############################################################################
# Source files
LDSCRIPT ?= $(BINARY).ld
SRCS = $(sort $(notdir $(wildcard $(SRCDIR)/*.c)))
OBJSDEMO = $(patsubst %.c, build/%.o ,$(SRCS))
OBJS = $(filter-out $(BINARY).o, $(OBJSDEMO))
INCLUDE_DIR = $(OPENCM3_DIR)/include
LIB_DIR = $(OPENCM3_DIR)/lib
SCRIPT_DIR = $(OPENCM3_DIR)/scripts
###############################################################################
# C flags
CFLAGS += -Ofast -g
CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -fno-common -ffunction-sections -fdata-sections
###############################################################################
# C++ flags
CXXFLAGS += -Ofast -g
CXXFLAGS += -Wextra -Wshadow -Wredundant-decls -Weffc++
CXXFLAGS += -fno-common -ffunction-sections -fdata-sections
###############################################################################
# C & C++ preprocessor common flags
CPPFLAGS += -MD
CPPFLAGS += -Wall -Wundef
CPPFLAGS += -I$(INCLUDE_DIR) $(DEFS)
###############################################################################
# Linker flags
LDFLAGS += --static -nostartfiles
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=build/$*.map
LDFLAGS += -Wl,--gc-sections
ifeq ($(V),99)
LDFLAGS += -Wl,--print-gc-sections
endif
###############################################################################
# Used libraries
LDLIBS += -l$(LIBNAME)
LDLIBS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
###############################################################################
###############################################################################
###############################################################################
.SUFFIXES: .elf .bin .hex .srec .list .map .images
.SECONDEXPANSION:
.SECONDARY:
all: elf bin lib
elf: $(BINARY).elf
bin: $(BINARY).bin
hex: $(BINARY).hex
srec: $(BINARY).srec
list: $(BINARY).list
lib: $(LIBUSBHOST).a
images: $(BINARY).images
flash: $(BINARY).flash
%.images: %.bin %.hex %.srec %.list %.map
@#printf "*** $* images generated ***\n"
%.bin: %.elf
@printf " OBJCOPY $(*).bin\n"
$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
%.hex: %.elf
@#printf " OBJCOPY $(*).hex\n"
$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
%.srec: %.elf
@#printf " OBJCOPY $(*).srec\n"
$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
%.list: %.elf
@#printf " OBJDUMP $(*).list\n"
$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
-include $(OBJSDEMO:.o=.d)
build/%.elf build/%.map: $(OBJSDEMO) $(LDSCRIPT)
@printf " LD $(*).elf\n"
$(Q)$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJSDEMO) $(LDLIBS) -o build/$*.elf
build/%.o:$(SRCDIR)/%.c
@printf " CC $(*).c\n"
$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$*.c
build/%.o: $(SRCDIR)/%.cxx
@printf " CXX $(*).cxx\n"
$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$(*).cxx
build/%.o: $(SRCDIR)/%.cpp
@printf " CXX $(*).cpp\n"
$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$(*).cpp
$(LIB_DIR)/lib$(LIBNAME).a:
clean:
@#printf " CLEAN\n"
@rm -f build/*
%.stlink-flash: %.bin
@printf " FLASH $<\n"
$(Q)$(STFLASH) write $(*).bin 0x8000000
ifeq ($(STLINK_PORT),)
ifeq ($(BMP_PORT),)
ifeq ($(OOCD_SERIAL),)
%.flash: %.hex
@printf " FLASH $<\n"
@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
-f board/$(OOCD_BOARD).cfg \
-c "init" -c "reset init" \
-c "flash write_image erase $(*).hex" \
-c "reset" \
-c "shutdown" $(NULL)
else
%.flash: %.hex
@printf " FLASH $<\n"
@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
-f board/$(OOCD_BOARD).cfg \
-c "ft2232_serial $(OOCD_SERIAL)" \
-c "init" -c "reset init" \
-c "flash write_image erase $(*).hex" \
-c "reset" \
-c "shutdown" $(NULL)
endif
else
%.flash: %.elf
@printf " GDB $(*).elf (flash)\n"
$(Q)$(GDB) --batch \
-ex 'target extended-remote $(BMP_PORT)' \
-x $(SCRIPT_DIR)/black_magic_probe_flash.scr \
$(*).elf
endif
else
%.flash: %.elf
@printf " GDB $(*).elf (flash)\n"
$(Q)$(GDB) --batch \
-ex 'target extended-remote $(STLINK_PORT)' \
-x $(SCRIPT_DIR)/stlink_flash.scr \
$(*).elf
endif
.PHONY: images clean stylecheck styleclean elf bin hex srec list testing
-include $(OBJS:.o=.d)
build/lib$(LIBUSBHOSTNAME).a: $(OBJS)
@printf " LIB $@\n"
$(Q)$(AR) rcs $@ $(OBJS)
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