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[/] [neorv32/] [trunk/] [sw/] [example/] [demo_twi/] [makefile] - Blame information for rev 21

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1 2 zero_gravi
#################################################################################################
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# << NEORV32 - Application Makefile >>                                                          #
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# ********************************************************************************************* #
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# Make sure to add the riscv GCC compiler's bin folder to your PATH environment variable.       #
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# ********************************************************************************************* #
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# BSD 3-Clause License                                                                          #
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#                                                                                               #
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# Copyright (c) 2020, Stephan Nolting. All rights reserved.                                     #
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#                                                                                               #
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# Redistribution and use in source and binary forms, with or without modification, are          #
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# permitted provided that the following conditions are met:                                     #
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#                                                                                               #
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# 1. Redistributions of source code must retain the above copyright notice, this list of        #
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#    conditions and the following disclaimer.                                                   #
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#                                                                                               #
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list of     #
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#    conditions and the following disclaimer in the documentation and/or other materials        #
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#    provided with the distribution.                                                            #
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#                                                                                               #
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# 3. Neither the name of the copyright holder nor the names of its contributors may be used to  #
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#    endorse or promote products derived from this software without specific prior written      #
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#    permission.                                                                                #
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#                                                                                               #
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS   #
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF               #
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE    #
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# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,     #
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
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# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED    #
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING     #
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# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED  #
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# OF THE POSSIBILITY OF SUCH DAMAGE.                                                            #
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# ********************************************************************************************* #
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# The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #
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#################################################################################################
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# *****************************************************************************
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# USER CONFIGURATION
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# *****************************************************************************
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# User's application sources (*.c, *.cpp, *.s, *.S); add additional files here
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APP_SRC ?= $(wildcard ./*.c) $(wildcard ./*.s) $(wildcard ./*.cpp) $(wildcard ./*.S)
43 2 zero_gravi
 
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# User's application include folders (don't forget the '-I' before each entry)
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APP_INC ?= -I .
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# User's application include folders - for assembly files only (don't forget the '-I' before each entry)
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ASM_INC ?= -I .
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49 21 zero_gravi
# Optimization
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EFFORT ?= -Os
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52 19 zero_gravi
# Compiler toolchain
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RISCV_TOOLCHAIN ?= riscv32-unknown-elf
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# CPU architecture and ABI
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MARCH ?= -march=rv32i
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MABI  ?= -mabi=ilp32
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59 21 zero_gravi
# User flags for additional configuration (will be added to compiler flags)
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USER_FLAGS ?=
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# Relative or absolute path to the NEORV32 home folder
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NEORV32_HOME ?= ../../..
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# *****************************************************************************
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# -----------------------------------------------------------------------------
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# NEORV32 framework
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# -----------------------------------------------------------------------------
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# Path to NEORV32 linker script and startup file
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NEORV32_COM_PATH = $(NEORV32_HOME)/sw/common
73 2 zero_gravi
# Path to main NEORV32 library include files
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NEORV32_INC_PATH = $(NEORV32_HOME)/sw/lib/include
75 2 zero_gravi
# Path to main NEORV32 library source files
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NEORV32_SRC_PATH = $(NEORV32_HOME)/sw/lib/source
77 2 zero_gravi
# Path to NEORV32 executable generator
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NEORV32_EXG_PATH = $(NEORV32_HOME)/sw/image_gen
79 2 zero_gravi
# Path to NEORV32 core rtl folder
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NEORV32_RTL_PATH = $(NEORV32_HOME)/rtl/core
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# Marker file to check for NEORV32 home folder
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NEORV32_HOME_MARKER = $(NEORV32_INC_PATH)/neorv32.h
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84 21 zero_gravi
# Core libraries (peripheral and CPU drivers)
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CORE_SRC  = $(wildcard $(NEORV32_SRC_PATH)/*.c)
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# Application start-up code
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CORE_SRC += $(NEORV32_COM_PATH)/crt0.S
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# Default linker script
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LD_SCRIPT = $(NEORV32_COM_PATH)/neorv32.ld
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# Main output files
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APP_EXE  = neorv32_exe.bin
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APP_ASM  = main.asm
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APP_IMG  = neorv32_application_image.vhd
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BOOT_IMG = neorv32_bootloader_image.vhd
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# -----------------------------------------------------------------------------
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# Sources and objects
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# -----------------------------------------------------------------------------
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# Define all sources
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SRC  = $(APP_SRC)
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SRC += $(CORE_SRC)
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# Define all object files
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OBJ = $(SRC:%=%.o)
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# -----------------------------------------------------------------------------
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# Tools and flags
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# -----------------------------------------------------------------------------
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# Compiler tools
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CC      = $(RISCV_TOOLCHAIN)-gcc
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OBJDUMP = $(RISCV_TOOLCHAIN)-objdump
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OBJCOPY = $(RISCV_TOOLCHAIN)-objcopy
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SIZE    = $(RISCV_TOOLCHAIN)-size
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# Host native compiler
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CC_X86 = gcc -Wall -O -g
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122 2 zero_gravi
# NEORV32 executable image generator
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IMAGE_GEN = $(NEORV32_EXG_PATH)/image_gen
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125 19 zero_gravi
# Compiler & linker flags
126 21 zero_gravi
CC_OPTS  = $(MARCH) $(MABI) $(EFFORT) -Wall -ffunction-sections -fdata-sections -nostartfiles
127 19 zero_gravi
CC_OPTS += -Wl,--gc-sections -lm -lc -lgcc -lc
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CC_OPTS += $(USER_FLAGS)
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131 2 zero_gravi
# -----------------------------------------------------------------------------
132 21 zero_gravi
# Application output definitions
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# -----------------------------------------------------------------------------
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.PHONY: check info help elf_info clean clean_all bootloader
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.DEFAULT_GOAL := help
136 2 zero_gravi
 
137 21 zero_gravi
# 'compile' is still here for compatibility
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exe:     $(APP_ASM) $(APP_EXE)
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compile: $(APP_ASM) $(APP_EXE)
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install: $(APP_ASM) $(APP_IMG)
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all:     $(APP_ASM) $(APP_EXE) $(APP_IMG)
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143 21 zero_gravi
# Check if making bootloader
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# This will disable some functions in crt0.S that are not relevant for the bootloader
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target bootloader: USER_FLAGS += -D__BOOTLOADER_START_CODE__
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target bootloader: LD_SCRIPT = $(NEORV32_COM_PATH)/bootloader_neorv32.ld
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148
 
149 2 zero_gravi
# -----------------------------------------------------------------------------
150 21 zero_gravi
# Image generator targets
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# -----------------------------------------------------------------------------
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# install/compile tools
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$(IMAGE_GEN): $(NEORV32_EXG_PATH)/image_gen.cpp
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        @echo Compiling $(IMAGE_GEN)
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        @$(CC_X86) $< -o $(IMAGE_GEN)
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157
 
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# -----------------------------------------------------------------------------
159 21 zero_gravi
# General targets: Assemble, compile, link, dump
160 2 zero_gravi
# -----------------------------------------------------------------------------
161 21 zero_gravi
# Compile app *.s sources (assembly)
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%.s.o: %.s
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        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(ASM_INC) $< -o $@
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# Compile app *.S sources (assembly + C pre-processor)
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%.S.o: %.S
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        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(ASM_INC) $< -o $@
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# Compile app *.c sources
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%.c.o: %.c
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        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(APP_INC) $< -o $@
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173 21 zero_gravi
# Compile app *.cpp sources
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%.cpp.o: %.cpp
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        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(APP_INC) $< -o $@
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177 2 zero_gravi
# Link object files and show memory utilization
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main.elf: $(OBJ)
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        @$(CC) $(CC_OPTS) -T $(LD_SCRIPT) $(OBJ) -o $@
180 2 zero_gravi
        @echo "Memory utilization:"
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        @$(SIZE) main.elf
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# Assembly listing file (for debugging)
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$(APP_ASM): main.elf
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        @$(OBJDUMP) -D -S -z  $< > $@
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# Generate final executable from .text + .rodata + .data (in THIS order!)
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main.bin: main.elf $(APP_ASM)
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        @$(OBJCOPY) -I elf32-little $< -j .text   -O binary text.bin
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        @$(OBJCOPY) -I elf32-little $< -j .rodata -O binary rodata.bin
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        @$(OBJCOPY) -I elf32-little $< -j .data   -O binary data.bin
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        @cat text.bin rodata.bin data.bin > $@
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        @rm -f text.bin rodata.bin data.bin
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# -----------------------------------------------------------------------------
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# Application targets: Generate binary executable, install (as VHDL file)
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# -----------------------------------------------------------------------------
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# Generate NEORV32 executable image for upload via bootloader
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$(APP_EXE): main.bin $(IMAGE_GEN)
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        @set -e
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        @$(IMAGE_GEN) -app_bin $< $@ $(shell basename $(CURDIR))
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        @echo "Executable ($(APP_EXE)) size in bytes:"
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        @wc -c < $(APP_EXE)
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# Generate NEORV32 executable VHDL boot image
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$(APP_IMG): main.bin $(IMAGE_GEN)
208 2 zero_gravi
        @set -e
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        @$(IMAGE_GEN) -app_img $< $@ $(shell basename $(CURDIR))
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        @echo "Installing application image to $(NEORV32_RTL_PATH)/$(APP_IMG)"
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        @cp $(APP_IMG) $(NEORV32_RTL_PATH)/.
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# -----------------------------------------------------------------------------
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# Bootloader targets
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# -----------------------------------------------------------------------------
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# Create and install bootloader VHDL init image
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$(BOOT_IMG): main.bin $(IMAGE_GEN)
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        @set -e
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        @$(IMAGE_GEN) -bld_img $< $(BOOT_IMG) $(shell basename $(CURDIR))
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        @echo "Installing bootloader image to $(NEORV32_RTL_PATH)/$(BOOT_IMG)"
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        @cp $(BOOT_IMG) $(NEORV32_RTL_PATH)/.
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# Just an alias that
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bootloader: $(BOOT_IMG)
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228 2 zero_gravi
# -----------------------------------------------------------------------------
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# Check toolchain
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# -----------------------------------------------------------------------------
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check: $(IMAGE_GEN)
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        @echo "---------------- Check: NEORV32_HOME folder ----------------"
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ifneq ($(shell [ -e $(NEORV32_HOME_MARKER) ] && echo 1 || echo 0 ), 1)
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$(error NEORV32_HOME folder not found!)
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endif
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        @echo "NEORV32_HOME: $(NEORV32_HOME)"
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        @echo "---------------- Check: $(CC) ----------------"
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        @$(CC) -v
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        @echo "---------------- Check: $(OBJDUMP) ----------------"
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        @$(OBJDUMP) -V
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        @echo "---------------- Check: $(OBJCOPY) ----------------"
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        @$(OBJCOPY) -V
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        @echo "---------------- Check: $(SIZE) ----------------"
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        @$(SIZE) -V
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        @echo "---------------- Check: NEORV32 image_gen ----------------"
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        @$(IMAGE_GEN) -help
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        @echo "---------------- Check: Native GCC ----------------"
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        @$(CC_X86) -v
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        @echo
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        @echo "Toolchain check OK"
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# -----------------------------------------------------------------------------
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# Show configuration
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# -----------------------------------------------------------------------------
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info:
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        @echo "---------------- Info: Project ----------------"
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        @echo "Project folder:        $(shell basename $(CURDIR))"
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        @echo "Source files:          $(APP_SRC)"
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        @echo "Include folder(s):     $(APP_INC)"
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        @echo "ASM include folder(s): $(ASM_INC)"
262 2 zero_gravi
        @echo "---------------- Info: NEORV32 ----------------"
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        @echo "NEORV32 home folder (NEORV32_HOME): $(NEORV32_HOME)"
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        @echo "IMAGE_GEN: $(IMAGE_GEN)"
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        @echo "LD script: $(LD_SCRIPT)"
266 6 zero_gravi
        @echo "Core source files:"
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        @echo "$(CORE_SRC)"
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        @echo "Core include folder:"
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        @echo "$(NEORV32_INC_PATH)"
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        @echo "---------------- Info: Objects ----------------"
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        @echo "Project object files:"
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        @echo "$(OBJ)"
273 2 zero_gravi
        @echo "---------------- Info: RISC-V CPU ----------------"
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        @echo "MARCH:      $(MARCH)"
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        @echo "MABI:       $(MABI)"
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        @echo "---------------- Info: Toolchain ----------------"
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        @echo "Toolchain:  $(RISCV_TOLLCHAIN)"
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        @echo "CC:         $(CC)"
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        @echo "OBJDUMP:    $(OBJDUMP)"
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        @echo "OBJCOPY:    $(OBJCOPY)"
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        @echo "SIZE:       $(SIZE)"
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        @echo "---------------- Info: Compiler Libraries ----------------"
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        @echo "LIBGCC:"
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        @$(CC) -print-libgcc-file-name
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        @echo "SEARCH-DIRS:"
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        @$(CC) -print-search-dirs
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        @echo "---------------- Info: Flags ----------------"
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        @echo "USER_FLAGS: $(USER_FLAGS)"
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        @echo "CC_OPTS:    $(CC_OPTS)"
290 19 zero_gravi
        @echo "---------------- Info: Host Native GCC Flags ----------------"
291 21 zero_gravi
        @echo "CC_X86:     $(CC_X86)"
292 2 zero_gravi
 
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# -----------------------------------------------------------------------------
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# Show final ELF details (just for debugging)
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# -----------------------------------------------------------------------------
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elf_info: main.elf
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        @$(OBJDUMP) -x main.elf
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# -----------------------------------------------------------------------------
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# Help
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# -----------------------------------------------------------------------------
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help:
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        @echo "<<< NEORV32 Application Makefile >>>"
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        @echo "Make sure to add the bin folder of RISC-V GCC to your PATH variable."
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        @echo "Targets:"
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        @echo " help       - show this text"
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        @echo " check      - check toolchain"
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        @echo " info       - show makefile/toolchain configuration"
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        @echo " exe        - compile and generate  executable for upload via bootloader"
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        @echo " install    - compile, generate and install VHDL IMEM boot image (for application)"
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        @echo " all        - compile and generate  executable for upload via bootloader and generate and install VHDL IMEM boot image (for application)"
314 2 zero_gravi
        @echo " clean      - clean up project"
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        @echo " clean_all  - clean up project, core libraries and image generator"
316 21 zero_gravi
        @echo " bootloader - compile, generate and install VHDL BOOTROM boot image (for bootloader only!)"
317 2 zero_gravi
 
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# -----------------------------------------------------------------------------
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# Clean up
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# -----------------------------------------------------------------------------
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clean:
323 21 zero_gravi
        @rm -f *.elf *.o *.bin *.out *.asm *.vhd
324 2 zero_gravi
 
325
clean_all: clean
326
        @rm -f $(OBJ) $(IMAGE_GEN)

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