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[/] [neorv32/] [trunk/] [sw/] [example/] [floating_point_test/] [makefile] - Diff between revs 55 and 62

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# OF THE POSSIBILITY OF SUCH DAMAGE.                                                            #
# OF THE POSSIBILITY OF SUCH DAMAGE.                                                            #
# ********************************************************************************************* #
# ********************************************************************************************* #
# The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #
# The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #
#################################################################################################
#################################################################################################
 
 
 
 
# *****************************************************************************
 
# USER CONFIGURATION
 
# *****************************************************************************
 
# User's application sources (*.c, *.cpp, *.s, *.S); add additional files here
 
APP_SRC ?= $(wildcard ./*.c) $(wildcard ./*.s) $(wildcard ./*.cpp) $(wildcard ./*.S)
 
 
 
# User's application include folders (don't forget the '-I' before each entry)
 
APP_INC ?= -I .
 
# User's application include folders - for assembly files only (don't forget the '-I' before each entry)
 
ASM_INC ?= -I .
 
 
 
# Optimization
 
EFFORT ?= -Os
 
 
 
# Compiler toolchain
 
RISCV_TOOLCHAIN ?= riscv32-unknown-elf
 
 
 
# CPU architecture and ABI
 
MARCH ?= -march=rv32i
 
MABI  ?= -mabi=ilp32
 
 
 
# User flags for additional configuration (will be added to compiler flags)
 
USER_FLAGS ?=
 
 
 
# Serial port for executable upload via bootloer
 
COM_PORT ?= /dev/ttyUSB0
 
 
 
# Relative or absolute path to the NEORV32 home folder
 
NEORV32_HOME ?= ../../..
NEORV32_HOME ?= ../../..
# *****************************************************************************
 
 
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# NEORV32 framework
 
# -----------------------------------------------------------------------------
 
# Path to NEORV32 linker script and startup file
 
NEORV32_COM_PATH = $(NEORV32_HOME)/sw/common
 
# Path to main NEORV32 library include files
 
NEORV32_INC_PATH = $(NEORV32_HOME)/sw/lib/include
 
# Path to main NEORV32 library source files
 
NEORV32_SRC_PATH = $(NEORV32_HOME)/sw/lib/source
 
# Path to NEORV32 executable generator
 
NEORV32_EXG_PATH = $(NEORV32_HOME)/sw/image_gen
 
# Path to NEORV32 core rtl folder
 
NEORV32_RTL_PATH = $(NEORV32_HOME)/rtl/core
 
# Marker file to check for NEORV32 home folder
 
NEORV32_HOME_MARKER = $(NEORV32_INC_PATH)/neorv32.h
 
 
 
# Core libraries (peripheral and CPU drivers)
 
CORE_SRC  = $(wildcard $(NEORV32_SRC_PATH)/*.c)
 
# Application start-up code
 
CORE_SRC += $(NEORV32_COM_PATH)/crt0.S
 
 
 
# Linker script
 
LD_SCRIPT = $(NEORV32_COM_PATH)/neorv32.ld
 
 
 
# Main output files
 
APP_EXE  = neorv32_exe.bin
 
APP_ASM  = main.asm
 
APP_IMG  = neorv32_application_image.vhd
 
BOOT_IMG = neorv32_bootloader_image.vhd
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Sources and objects
 
# -----------------------------------------------------------------------------
 
# Define all sources
 
SRC  = $(APP_SRC)
 
SRC += $(CORE_SRC)
 
 
 
# Define all object files
 
OBJ = $(SRC:%=%.o)
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Tools and flags
 
# -----------------------------------------------------------------------------
 
# Compiler tools
 
CC      = $(RISCV_TOOLCHAIN)-gcc
 
OBJDUMP = $(RISCV_TOOLCHAIN)-objdump
 
OBJCOPY = $(RISCV_TOOLCHAIN)-objcopy
 
SIZE    = $(RISCV_TOOLCHAIN)-size
 
 
 
# Host native compiler
 
CC_X86 = g++ -Wall -O -g
 
 
 
# NEORV32 executable image generator
 
IMAGE_GEN = $(NEORV32_EXG_PATH)/image_gen
 
 
 
# Compiler & linker flags
 
CC_OPTS  = $(MARCH) $(MABI) $(EFFORT) -Wall -ffunction-sections -fdata-sections -nostartfiles -mno-fdiv
 
CC_OPTS += -Wl,--gc-sections -lm -lc -lgcc -lc
 
# This accelerates instruction fetch after branches when C extension is enabled (irrelevant when C extension is disabled)
 
CC_OPTS += -falign-functions=4 -falign-labels=4 -falign-loops=4 -falign-jumps=4
 
CC_OPTS += $(USER_FLAGS)
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Application output definitions
 
# -----------------------------------------------------------------------------
 
.PHONY: check info help elf_info clean clean_all bootloader
 
.DEFAULT_GOAL := help
 
 
 
# 'compile' is still here for compatibility
 
exe:     $(APP_ASM) $(APP_EXE)
 
compile: $(APP_ASM) $(APP_EXE)
 
install: $(APP_ASM) $(APP_IMG)
 
all:     $(APP_ASM) $(APP_EXE) $(APP_IMG)
 
 
 
# Check if making bootloader
 
# Use different base address and legth for instruction memory/"rom" (BOOTMEM instead of IMEM)
 
# Also define "make_bootloader" for crt0.S
 
target bootloader: CC_OPTS += -Wl,--defsym=make_bootloader=1 -Dmake_bootloader
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Image generator targets
 
# -----------------------------------------------------------------------------
 
# install/compile tools
 
$(IMAGE_GEN): $(NEORV32_EXG_PATH)/image_gen.cpp
 
        @echo Compiling $(IMAGE_GEN)
 
        @$(CC_X86) $< -o $(IMAGE_GEN)
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# General targets: Assemble, compile, link, dump
 
# -----------------------------------------------------------------------------
 
# Compile app *.s sources (assembly)
 
%.s.o: %.s
 
        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(ASM_INC) $< -o $@
 
 
 
# Compile app *.S sources (assembly + C pre-processor)
 
%.S.o: %.S
 
        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(ASM_INC) $< -o $@
 
 
 
# Compile app *.c sources
 
%.c.o: %.c
 
        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(APP_INC) $< -o $@
 
 
 
# Compile app *.cpp sources
 
%.cpp.o: %.cpp
 
        @$(CC) -c $(CC_OPTS) -I $(NEORV32_INC_PATH) $(APP_INC) $< -o $@
 
 
 
# Link object files and show memory utilization
 
main.elf: $(OBJ)
 
        @$(CC) $(CC_OPTS) -T $(LD_SCRIPT) $(OBJ) -o $@ -lm
 
        @echo "Memory utilization:"
 
        @$(SIZE) main.elf
 
 
 
# Assembly listing file (for debugging)
 
$(APP_ASM): main.elf
 
        @$(OBJDUMP) -d -S -z  $< > $@
 
 
 
# Generate final executable from .text + .rodata + .data (in THIS order!)
 
main.bin: main.elf $(APP_ASM)
 
        @$(OBJCOPY) -I elf32-little $< -j .text   -O binary text.bin
 
        @$(OBJCOPY) -I elf32-little $< -j .rodata -O binary rodata.bin
 
        @$(OBJCOPY) -I elf32-little $< -j .data   -O binary data.bin
 
        @cat text.bin rodata.bin data.bin > $@
 
        @rm -f text.bin rodata.bin data.bin
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Application targets: Generate binary executable, install (as VHDL file)
 
# -----------------------------------------------------------------------------
 
# Generate NEORV32 executable image for upload via bootloader
 
$(APP_EXE): main.bin $(IMAGE_GEN)
 
        @set -e
 
        @$(IMAGE_GEN) -app_bin $< $@ $(shell basename $(CURDIR))
 
        @echo "Executable ($(APP_EXE)) size in bytes:"
 
        @wc -c < $(APP_EXE)
 
 
 
# Generate NEORV32 executable VHDL boot image
 
$(APP_IMG): main.bin $(IMAGE_GEN)
 
        @set -e
 
        @$(IMAGE_GEN) -app_img $< $@ $(shell basename $(CURDIR))
 
        @echo "Installing application image to $(NEORV32_RTL_PATH)/$(APP_IMG)"
 
        @cp $(APP_IMG) $(NEORV32_RTL_PATH)/.
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Bootloader targets
 
# -----------------------------------------------------------------------------
 
# Create and install bootloader VHDL init image
 
$(BOOT_IMG): main.bin $(IMAGE_GEN)
 
        @set -e
 
        @$(IMAGE_GEN) -bld_img $< $(BOOT_IMG) $(shell basename $(CURDIR))
 
        @echo "Installing bootloader image to $(NEORV32_RTL_PATH)/$(BOOT_IMG)"
 
        @cp $(BOOT_IMG) $(NEORV32_RTL_PATH)/.
 
 
 
# Just an alias that
 
bootloader: $(BOOT_IMG)
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Check toolchain
 
# -----------------------------------------------------------------------------
 
check: $(IMAGE_GEN)
 
        @echo "---------------- Check: NEORV32_HOME folder ----------------"
 
ifneq ($(shell [ -e $(NEORV32_HOME_MARKER) ] && echo 1 || echo 0 ), 1)
 
$(error NEORV32_HOME folder not found!)
 
endif
 
        @echo "NEORV32_HOME: $(NEORV32_HOME)"
 
        @echo "---------------- Check: $(CC) ----------------"
 
        @$(CC) -v
 
        @echo "---------------- Check: $(OBJDUMP) ----------------"
 
        @$(OBJDUMP) -V
 
        @echo "---------------- Check: $(OBJCOPY) ----------------"
 
        @$(OBJCOPY) -V
 
        @echo "---------------- Check: $(SIZE) ----------------"
 
        @$(SIZE) -V
 
        @echo "---------------- Check: NEORV32 image_gen ----------------"
 
        @$(IMAGE_GEN) -help
 
        @echo "---------------- Check: Native GCC ----------------"
 
        @$(CC_X86) -v
 
        @echo
 
        @echo "Toolchain check OK"
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Upload executable via serial port to bootloader
 
# -----------------------------------------------------------------------------
 
upload: $(APP_EXE)
 
        @sh $(NEORV32_EXG_PATH)/uart_upload.sh $(COM_PORT) $(APP_EXE)
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Show configuration
 
# -----------------------------------------------------------------------------
 
info:
 
        @echo "---------------- Info: Project ----------------"
 
        @echo "Project folder:        $(shell basename $(CURDIR))"
 
        @echo "Source files:          $(APP_SRC)"
 
        @echo "Include folder(s):     $(APP_INC)"
 
        @echo "ASM include folder(s): $(ASM_INC)"
 
        @echo "---------------- Info: NEORV32 ----------------"
 
        @echo "NEORV32 home folder (NEORV32_HOME): $(NEORV32_HOME)"
 
        @echo "IMAGE_GEN: $(IMAGE_GEN)"
 
        @echo "Core source files:"
 
        @echo "$(CORE_SRC)"
 
        @echo "Core include folder:"
 
        @echo "$(NEORV32_INC_PATH)"
 
        @echo "---------------- Info: Objects ----------------"
 
        @echo "Project object files:"
 
        @echo "$(OBJ)"
 
        @echo "---------------- Info: RISC-V CPU ----------------"
 
        @echo "MARCH:      $(MARCH)"
 
        @echo "MABI:       $(MABI)"
 
        @echo "---------------- Info: Toolchain ----------------"
 
        @echo "Toolchain:  $(RISCV_TOLLCHAIN)"
 
        @echo "CC:         $(CC)"
 
        @echo "OBJDUMP:    $(OBJDUMP)"
 
        @echo "OBJCOPY:    $(OBJCOPY)"
 
        @echo "SIZE:       $(SIZE)"
 
        @echo "---------------- Info: Compiler Libraries ----------------"
 
        @echo "LIBGCC:"
 
        @$(CC) -print-libgcc-file-name
 
        @echo "SEARCH-DIRS:"
 
        @$(CC) -print-search-dirs
 
        @echo "---------------- Info: Flags ----------------"
 
        @echo "USER_FLAGS: $(USER_FLAGS)"
 
        @echo "CC_OPTS:    $(CC_OPTS)"
 
        @echo "---------------- Info: Host Native GCC Flags ----------------"
 
        @echo "CC_X86:     $(CC_X86)"
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Show final ELF details (just for debugging)
 
# -----------------------------------------------------------------------------
 
elf_info: main.elf
 
        @$(OBJDUMP) -x main.elf
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Help
 
# -----------------------------------------------------------------------------
 
help:
 
        @echo "<<< NEORV32 Application Makefile >>>"
 
        @echo "Make sure to add the bin folder of RISC-V GCC to your PATH variable."
 
        @echo "Targets:"
 
        @echo " help       - show this text"
 
        @echo " check      - check toolchain"
 
        @echo " info       - show makefile/toolchain configuration"
 
        @echo " exe        - compile and generate  executable for upload via bootloader"
 
        @echo " install    - compile, generate and install VHDL IMEM boot image (for application)"
 
        @echo " all        - compile and generate  executable for upload via bootloader and generate and install VHDL IMEM boot image (for application)"
 
        @echo " clean      - clean up project"
 
        @echo " clean_all  - clean up project, core libraries and image generator"
 
        @echo " bootloader - compile, generate and install VHDL BOOTROM boot image (for bootloader only!)"
 
        @echo " upload     - upload  executable via serial port  to bootloader"
 
 
 
 
 
# -----------------------------------------------------------------------------
 
# Clean up
 
# -----------------------------------------------------------------------------
 
clean:
 
        @rm -f *.elf *.o *.bin *.out *.asm *.vhd
 
 
 
clean_all: clean
include ../../common/common.mk
        @rm -f $(OBJ) $(IMAGE_GEN)
 
include ../../common/common.mk
 

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