3af1f8d43d
User can specify which binaries he needs on the commandline. 'make hex' will build examples with generating hex file 'make hex bin' will build hex and bin output 'make images' will build all images as in previous versions of buildsystem 'make all' or 'make' will build only elf (+ map) files This will have huge impact on build speed.
239 lines
6.6 KiB
Makefile
239 lines
6.6 KiB
Makefile
##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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NULL := 2>/dev/null
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endif
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###############################################################################
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# Executables
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PREFIX ?= arm-none-eabi
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CC := $(PREFIX)-gcc
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CXX := $(PREFIX)-g++
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LD := $(PREFIX)-gcc
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AR := $(PREFIX)-ar
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AS := $(PREFIX)-as
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OBJCOPY := $(PREFIX)-objcopy
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OBJDUMP := $(PREFIX)-objdump
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GDB := $(PREFIX)-gdb
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STFLASH = $(shell which st-flash)
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STYLECHECK := /checkpatch.pl
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STYLECHECKFLAGS := --no-tree -f --terse --mailback
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STYLECHECKFILES := $(shell find . -name '*.[ch]')
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###############################################################################
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# Source files
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LDSCRIPT ?= $(BINARY).ld
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OBJS += $(BINARY).o
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ifeq ($(strip $(OPENCM3_DIR)),)
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# user has not specified the library path, so we try to detect it
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# where we search for the library
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LIBPATHS := ./libopencm3 ../../../../libopencm3 ../../../../../libopencm3
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OPENCM3_DIR := $(wildcard $(LIBPATHS:=/locm3.sublime-project))
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OPENCM3_DIR := $(firstword $(dir $(OPENCM3_DIR)))
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ifeq ($(strip $(OPENCM3_DIR)),)
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$(warning Cannot find libopencm3 library in the standard search paths.)
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$(error Please specify it through OPENCM3_DIR variable!)
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endif
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endif
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ifeq ($(V),1)
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$(info Using $(OPENCM3_DIR) path to library)
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endif
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INCLUDE_DIR = $(OPENCM3_DIR)/include
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LIB_DIR = $(OPENCM3_DIR)/lib
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SCRIPT_DIR = $(OPENCM3_DIR)/scripts
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###############################################################################
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# C flags
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CFLAGS += -Os -g
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CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration
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CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
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CFLAGS += -fno-common -ffunction-sections -fdata-sections
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###############################################################################
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# C++ flags
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CXXFLAGS += -Os -g
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CXXFLAGS += -Wextra -Wshadow -Wredundant-decls -Weffc++
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CXXFLAGS += -fno-common -ffunction-sections -fdata-sections
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###############################################################################
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# C & C++ preprocessor common flags
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CPPFLAGS += -MD
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CPPFLAGS += -Wall -Wundef
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CPPFLAGS += -I$(INCLUDE_DIR) $(DEFS)
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###############################################################################
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# Linker flags
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LDFLAGS += --static -nostartfiles
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LDFLAGS += -L$(LIB_DIR)
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LDFLAGS += -T$(LDSCRIPT)
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LDFLAGS += -Wl,-Map=$(*).map
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LDFLAGS += -Wl,--gc-sections
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ifeq ($(V),1)
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LDFLAGS += -Wl,--print-gc-sections
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endif
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###############################################################################
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# Used libraries
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LDLIBS += -l$(LIBNAME)
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LDLIBS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
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###############################################################################
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###############################################################################
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###############################################################################
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.SUFFIXES: .elf .bin .hex .srec .list .map .images
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.SECONDEXPANSION:
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.SECONDARY:
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all: elf
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elf: $(BINARY).elf
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bin: $(BINARY).bin
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hex: $(BINARY).hex
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srec: $(BINARY).srec
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list: $(BINARY).list
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images: $(BINARY).images
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flash: $(BINARY).flash
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%.images: %.bin %.hex %.srec %.list %.map
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@#printf "*** $* images generated ***\n"
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%.bin: %.elf
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@#printf " OBJCOPY $(*).bin\n"
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$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
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%.hex: %.elf
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@#printf " OBJCOPY $(*).hex\n"
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$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
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%.srec: %.elf
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@#printf " OBJCOPY $(*).srec\n"
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$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
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%.list: %.elf
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@#printf " OBJDUMP $(*).list\n"
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$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
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%.elf %.map: $(OBJS) $(LDSCRIPT) $(LIB_DIR)/lib$(LIBNAME).a
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@#printf " LD $(*).elf\n"
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$(Q)$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJS) $(LDLIBS) -o $(*).elf
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%.o: %.c
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@#printf " CC $(*).c\n"
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$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $(*).o -c $(*).c
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%.o: %.cxx
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@#printf " CXX $(*).cxx\n"
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$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $(*).o -c $(*).cxx
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%.o: %.cpp
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@#printf " CXX $(*).cpp\n"
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$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $(*).o -c $(*).cpp
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clean:
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@#printf " CLEAN\n"
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$(Q)$(RM) *.o *.d *.elf *.bin *.hex *.srec *.list *.map
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stylecheck: $(STYLECHECKFILES:=.stylecheck)
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styleclean: $(STYLECHECKFILES:=.styleclean)
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# the cat is due to multithreaded nature - we like to have consistent chunks of text on the output
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%.stylecheck: %
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$(Q)$(SCRIPT_DIR)$(STYLECHECK) $(STYLECHECKFLAGS) $* > $*.stylecheck; \
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if [ -s $*.stylecheck ]; then \
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cat $*.stylecheck; \
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else \
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rm -f $*.stylecheck; \
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fi;
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%.styleclean:
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$(Q)rm -f $*.stylecheck;
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%.stlink-flash: %.bin
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@printf " FLASH $<\n"
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$(Q)$(STFLASH) write $(*).bin 0x8000000
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ifeq ($(STLINK_PORT),)
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ifeq ($(BMP_PORT),)
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ifeq ($(OOCD_SERIAL),)
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%.flash: %.hex
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@printf " FLASH $<\n"
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@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
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$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
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-f board/$(OOCD_BOARD).cfg \
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-c "init" -c "reset init" \
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-c "flash write_image erase $(*).hex" \
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-c "reset" \
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-c "shutdown" $(NULL)
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else
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%.flash: %.hex
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@printf " FLASH $<\n"
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@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
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$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
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-f board/$(OOCD_BOARD).cfg \
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-c "ft2232_serial $(OOCD_SERIAL)" \
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-c "init" -c "reset init" \
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-c "flash write_image erase $(*).hex" \
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-c "reset" \
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-c "shutdown" $(NULL)
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endif
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else
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%.flash: %.elf
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@printf " GDB $(*).elf (flash)\n"
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$(Q)$(GDB) --batch \
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-ex 'target extended-remote $(BMP_PORT)' \
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-x $(SCRIPT_DIR)/black_magic_probe_flash.scr \
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$(*).elf
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endif
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else
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%.flash: %.elf
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@printf " GDB $(*).elf (flash)\n"
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$(Q)$(GDB) --batch \
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-ex 'target extended-remote $(STLINK_PORT)' \
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-x $(SCRIPT_DIR)/stlink_flash.scr \
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$(*).elf
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endif
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.PHONY: images clean stylecheck styleclean elf bin hex srec list
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-include $(OBJS:.o=.d) |