Files
libopencm3-examples/examples/Makefile.rules

197 lines
4.9 KiB
Makefile

##
## This file is part of the 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>
##
## 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/>.
##
# Be silent per default, but 'make V=1' will show all compiler calls.
ifneq ($(V),1)
Q := @
NULL := 2>/dev/null
endif
PREFIX ?= arm-none-eabi
CC = $(PREFIX)-gcc
CPP = $(PREFIX)-g++
LD = $(PREFIX)-gcc
OBJCOPY = $(PREFIX)-objcopy
OBJDUMP = $(PREFIX)-objdump
GDB = $(PREFIX)-gdb
STFLASH = $(shell which st-flash)
LDSCRIPT ?= $(BINARY).ld
OBJS += $(BINARY).o
ifeq ($(strip $(OPENCM3_DIR)),)
# user has not specified the library path, so we try to detect it
# where we search for the library
LIBPATHS := ./libopencm3 ../../../../../libopencm3
OPENCM3_DIR := $(wildcard $(LIBPATHS:=/locm3.sublime-project))
OPENCM3_DIR := $(firstword $(shell dirname $(OPENCM3_DIR)))
ifeq ($(strip $(OPENCM3_DIR)),)
$(error Cannot find libopencm3 library in the standard search paths.)
endif
endif
ifeq ($(V),1)
$(info Using $(OPENCM3_DIR) path to library)
endif
INCLUDE_DIR = $(OPENCM3_DIR)/include
LIB_DIR = $(OPENCM3_DIR)/lib
SCRIPT_DIR = $(OPENCM3_DIR)/scripts
# C flags
CFLAGS += -Os -g $(ARCH_FLAGS) -MD $(DEFS)
CFLAGS += -Wall -Wextra -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -Wundef -Wshadow -fno-common
CFLAGS += -I$(INCLUDE_DIR)
# C++ flags
CPPFLAGS += -Os -g $(ARCH_FLAGS) -MD $(DEFS)
CPPFLAGS += -Wall -Wextra -Wimplicit-function-declaration
CPPFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
CPPFLAGS += -Wundef -Wshadow -fno-common
CPPFLAGS += -I$(INCLUDE_DIR)
# Linker flags
LDFLAGS += --static -nostartfiles $(ARCH_FLAGS) -l$(LIBNAME)
LDFLAGS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
LDFLAGS += -Wl,--gc-sections
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=$(*).map
ifeq ($(V),1)
LDFLAGS += -Wl,--print-gc-sections
endif
.SUFFIXES: .elf .bin .hex .srec .list .map .images
.SECONDEXPANSION:
.SECONDARY:
all: images
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
%.elf %.map: $(OBJS) $(LDSCRIPT) $(LIB_DIR)/lib$(LIBNAME).a
@#printf " LD $(*).elf\n"
$(Q)$(LD) -o $(*).elf $(OBJS) $(LDFLAGS)
%.o: %.c
@#printf " CC $(*).c\n"
$(Q)$(CC) $(CFLAGS) -o $(*).o -c $(*).c
%.o: %.cpp
@#printf " CPP $(*).cpp\n"
$(Q)$(CPP) $(CPPFLAGS) -o $(*).o -c $(*).cpp
clean:
@#printf " CLEAN\n"
$(Q)rm -f *.o
$(Q)rm -f *.d
$(Q)rm -f *.elf
$(Q)rm -f *.bin
$(Q)rm -f *.hex
$(Q)rm -f *.srec
$(Q)rm -f *.list
$(Q)rm -f *.map
%.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
-include $(OBJS:.o=.d)