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#############################################################
# Configuration
#############################################################
# Allows users to create Makefile.local or ../Makefile.project with
# configuration variables, so they don't have to be set on the command-line
# every time.
extra_configs := $(wildcard Makefile.local ../Makefile.project)
ifneq ($(extra_configs),)
$(info Obtaining additional make variables from $(extra_configs))
include $(extra_configs)
endif
# Allow BOARD as a synonym for TARGET
ifneq ($(BOARD),)
TARGET ?= $(BOARD)
endif
# Default PROGRAM and TARGET
PROGRAM ?= hello
TARGET ?= sifive-hifive1
TARGET_ROOT ?= $(abspath .)
PROGRAM_ROOT ?= $(abspath .)
SRC_DIR = $(PROGRAM_ROOT)/software/$(PROGRAM)
PROGRAM_ELF = $(SRC_DIR)/$(CONFIGURATION)/$(PROGRAM).elf
PROGRAM_HEX = $(SRC_DIR)/$(CONFIGURATION)/$(PROGRAM).hex
PROGRAM_LST = $(SRC_DIR)/$(CONFIGURATION)/$(PROGRAM).lst
PROGRAM_RTL = $(SRC_DIR)/$(CONFIGURATION)/$(PROGRAM).rtl
#############################################################
# BSP Loading
#############################################################
# Finds the directory in which this BSP is located, ensuring that there is
# exactly one.
BSP_DIR := $(wildcard $(TARGET_ROOT)/bsp/$(TARGET))
ifeq ($(words $(BSP_DIR)),0)
$(error Unable to find BSP for $(TARGET), expected to find "bsp/$(TARGET)")
endif
ifneq ($(words $(BSP_DIR)),1)
$(error Found multiple BSPs for $(TARGET): "$(BSP_DIR)")
endif
#############################################################
# Standalone Script Include
#############################################################
# The standalone script is included here because it needs $(SRC_DIR) and
# $(BSP_DIR) to be set.
#
# The standalone Makefile handles the following tasks:
# - Including $(BSP_DIR)/settings.mk and validating RISCV_ARCH, RISCV_ABI
# - Setting the toolchain path with CROSS_COMPILE and RISCV_PATH
# - Providing the software and $(PROGRAM_ELF) Make targets for Metal
include scripts/standalone.mk
#############################################################
# Prints help message
#############################################################
.PHONY: help
help:
@echo " SiFive Freedom E Software Development Kit "
@echo " Makefile targets:"
@echo ""
@echo " software [PROGRAM=$(PROGRAM)] [TARGET=$(TARGET)]"
@echo " [CONFIGURATION=$(CONFIGURATION)]:"
@echo " Builds the requested PROGRAM for the TARGET using the"
@echo " specified build CONFIGURATION."
@echo ""
@echo " metal [TARGET=$(TARGET)] [CONFIGURATION=$(CONFIGURATION)]"
@echo " Builds the Freedom Metal library for TARGET."
@echo ""
@echo " clean [PROGRAM=$(PROGRAM)] [TARGET=$(TARGET)]"
@echo " [CONFIGURATION=$(CONFIGURATION)]:"
@echo " Cleans compiled objects for a specified "
@echo " software program."
@echo ""
@echo " upload [PROGRAM=$(PROGRAM)] [TARGET=$(TARGET)]"
@echo " [CONFIGURATION=$(CONFIGURATION)]:"
@echo " For board and FPGA TARGETs, uploads the program to the"
@echo " on-board flash."
@echo ""
@echo " debug [PROGRAM=$(PROGRAM)] [TARGET=$(TARGET)]"
@echo " [CONFIGURATION=$(CONFIGURATION)]:"
@echo " For board and FPGA TARGETs, attaches GDB to the"
@echo " running program."
@echo ""
@echo " standalone STANDALONE_DEST=/path/to/desired/location"
@echo " [PROGRAM=$(PROGRAM)] [TARGET=$(TARGET)]:"
@echo " Exports a program for a single target into a standalone"
@echo " project directory at STANDALONE_DEST."
@echo ""
@echo " For more information, view the Freedom E SDK Documentation at"
@echo " https://sifive.github.io/freedom-e-sdk-docs/index.html"
.PHONY: clean
clean:
#############################################################
# Enumerate BSPs and Programs
#
# List all available boards and programs in a form that
# Freedom Studio knows how to parse. Do not change the
# format or fixed text of the output without consulting the
# Freedom Studio dev team.
#############################################################
# Find all settings.mk with TARGET_REQUIRE_TAGS in TARGET_TAGS
MATCHING_SETTINGS = $(shell scripts/filter-targets $(TARGET_ROOT)/bsp $(TARGET_REQUIRE_TAGS))
# Get the name of the containing directory of all matching settings.mk
MATCHING_TARGETS = $(patsubst $(TARGET_ROOT)/bsp/%/,%,$(dir $(MATCHING_SETTINGS)))
.PHONY: list-targets
list-targets:
@echo bsp-list: $(sort $(MATCHING_TARGETS))
# Lists all available TARGET_TAGS
#
# 1. Find all settings.mk
# 2. Extract the TARGET_TAGS line
# 3. Extract the value of TARGET_TAGS
# 4. Split each tag onto a newline
# 5. Sort the lines
# 6. Find unique tags
#
.PHONY: list-target-tags
list-target-tags:
@echo target-tags: $(shell find $(TARGET_ROOT)/bsp -name settings.mk | \
xargs grep -he "TARGET_TAGS" | \
sed -r 's/TARGET_TAGS.*=(.*)/\1/' | \
tr ' ' '\n' | \
sort | \
uniq)
# Metal programs are any submodules in the software folder
.PHONY: list-programs
list-programs:
@echo program-list: $(shell grep -o '= software/.*$$' .gitmodules | sed 's/.*\///')
.PHONY: list-options
list-options: list-programs list-targets
#############################################################
# Import rules to build Freedom Metal
#############################################################
include scripts/libmetal.mk
#############################################################
# Standalone Project Export
#############################################################
ifeq ($(STANDALONE_DEST),)
standalone:
$(error Please provide STANDALONE_DEST to create a standalone project)
else # STANDALONE_DEST != ""
$(STANDALONE_DEST):
$(STANDALONE_DEST)/%:
mkdir -p $@
ifneq ($(filter rtl,$(TARGET_TAGS)),)
# TARGETs with the "rtl" TARGET_TAG need elf2hex in their standalone project
standalone: \
$(STANDALONE_DEST) \
$(STANDALONE_DEST)/bsp \
$(STANDALONE_DEST)/src \
$(SRC_DIR) \
freedom-metal \
debug.mk \
release.mk \
scripts/elf2hex \
scripts/standalone.mk \
scripts/libmetal.mk
cp -r $(addprefix $(BSP_DIR)/,$(filter-out build,$(shell ls $(BSP_DIR)))) $</bsp/
cp -r freedom-metal $</
find $</freedom-metal -name ".git*" | xargs rm
mkdir -p $</scripts
cp -r scripts/elf2hex $</scripts
find $</scripts/elf2hex -name ".git*" | xargs rm
$(MAKE) -C $(SRC_DIR) clean
cp -r $(SRC_DIR)/* $</src/
cp debug.mk $</debug.mk
cp release.mk $</release.mk
echo "PROGRAM = $(PROGRAM)" > $</Makefile
cat scripts/standalone.mk >> $</Makefile
cat scripts/libmetal.mk >> $</Makefile
else # "rtl" not in TARGET_TAGS
standalone: \
$(STANDALONE_DEST) \
$(STANDALONE_DEST)/bsp \
$(STANDALONE_DEST)/src \
$(SRC_DIR) \
freedom-metal \
debug.mk \
release.mk \
scripts/standalone.mk \
scripts/libmetal.mk
cp -r $(addprefix $(BSP_DIR)/,$(filter-out build,$(shell ls $(BSP_DIR)))) $</bsp/
cp -r freedom-metal $</
find $</freedom-metal -name ".git*" | xargs rm
$(MAKE) -C $(SRC_DIR) clean
cp -r $(SRC_DIR)/* $</src/
cp debug.mk $</debug.mk
cp release.mk $</release.mk
echo "PROGRAM = $(PROGRAM)" > $</Makefile
cat scripts/standalone.mk >> $</Makefile
cat scripts/libmetal.mk >> $</Makefile
endif # rtl in TARGET_TAGS
endif # STANDALONE_DEST
#############################################################
# Upload and Debug
#############################################################
ifneq ($(RISCV_OPENOCD_PATH),)
RISCV_OPENOCD=$(RISCV_OPENOCD_PATH)/bin/openocd
else
#if RISCV_OPENOCD_PATH is not set, just look on the PATH
RISCV_OPENOCD=openocd
endif
ifneq ($(filter jlink,$(TARGET_TAGS)),)
upload: $(PROGRAM_HEX)
scripts/upload --hex $(PROGRAM_HEX) --jlink $(SEGGER_JLINK_EXE)
else
upload: $(PROGRAM_ELF)
scripts/upload --elf $(PROGRAM_ELF) --openocd $(RISCV_OPENOCD) --gdb $(RISCV_GDB) --openocd-config bsp/$(TARGET)/openocd.cfg
endif
ifneq ($(filter jlink,$(TARGET_TAGS)),)
debug: $(PROGRAM_ELF)
scripts/debug --elf $(PROGRAM_ELF) --jlink $(SEGGER_JLINK_GDB_SERVER) --gdb $(RISCV_GDB)
else
debug: $(PROGRAM_ELF)
scripts/debug --elf $(PROGRAM_ELF) --openocd $(RISCV_OPENOCD) --gdb $(RISCV_GDB) --openocd-config bsp/$(TARGET)/openocd.cfg
endif
|
