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|
#############################################################
# Configuration
#############################################################
# Allow users to select a different cross compiler.
CROSS_COMPILE ?= riscv64-unknown-elf
# 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 $(extra_configs)
endif
# Default target
# legacy for old e-sdk or mee
BSP ?= legacy
ifeq ($(BSP),legacy)
BSP_SUBDIR ?= env
BOARD ?= freedom-e300-hifive1
PROGRAM ?= demo_gpio
LINK_TARGET ?= flash
GDB_PORT ?= 3333
else # MEE
BSP_SUBDIR ?=
PROGRAM ?= hello
BOARD ?= sifive-hifive1
endif # $(BSP)
# Variables the user probably shouldn't override.
#############################################################
# BSP Loading
#############################################################
# Finds the directory in which this BSP is located, ensuring that there is
# exactly one.
board_dir := $(wildcard bsp/$(BSP_SUBDIR)/$(BOARD))
ifeq ($(words $(board_dir)),0)
$(error Unable to find BSP for $(BOARD), expected to find either "bsp/$(BOARD)" or "bsp-addons/$(BOARD)")
endif
ifneq ($(words $(board_dir)),1)
$(error Found multiple BSPs for $(BOARD): "$(board_dir)")
endif
ifeq ($(BSP), mee)
include $(board_dir)/settings.mk
else
# There must be a settings makefile fragment in the BSP's board directory.
ifeq ($(wildcard $(board_dir)/settings.mk),)
$(error Unable to find BSP for $(BOARD), expected to find $(board_dir)/settings.mk)
endif
include $(board_dir)/settings.mk
ifeq ($(RISCV_ARCH),)
$(error $(board_dir)/board.mk must set RISCV_ARCH, the RISC-V ISA string to target)
endif
ifeq ($(RISCV_ABI),)
$(error $(board_dir)/board.mk must set RISCV_ABI, the ABI to target)
endif
endif
# Determines the XLEN from the toolchain tuple
ifeq ($(patsubst rv32%,rv32,$(RISCV_ARCH)),rv32)
RISCV_XLEN := 32
else ifeq ($(patsubst rv64%,rv64,$(RISCV_ARCH)),rv64)
RISCV_XLEN := 64
else
$(error Unable to determine XLEN from $(RISCV_ARCH))
endif
#############################################################
# Prints help message
#############################################################
.PHONY: help
help:
@echo " SiFive Freedom E Software Development Kit "
@echo " Makefile targets:"
@echo ""
@echo " software BSP=legacy [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:"
@echo " Build a software program to load with the"
@echo " debugger."
@echo ""
@echo " mee BSP=mee [BOARD=$(BOARD)]"
@echo " Build the MEE library for BOARD"
@echo ""
@echo " examples BSP=mee [BOARD=$(BOARD)]"
@echo " Build all the examples for the given board."
@echo ""
@echo " clean [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:"
@echo " Clean compiled objects for a specified "
@echo " software program."
@echo ""
@echo " upload [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:"
@echo " Launch OpenOCD to flash your program to the"
@echo " on-board Flash."
@echo ""
@echo " run_openocd [BOARD=$(BOARD)]:"
@echo " run_gdb [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:"
@echo " Launch OpenOCD or GDB seperately. Allows Ctrl-C to halt running"
@echo " programs."
@echo ""
@echo " dasm [PROGRAM=$(PROGRAM)]:"
@echo " Generates the dissassembly output of 'objdump -D' to stdout."
@echo ""
@echo " For more information, visit dev.sifive.com"
.PHONY: clean
clean:
#############################################################
# This section is for tool configuration
#############################################################
# If users don't specify RISCV_PATH then assume that the tools will just be in
# their path.
ifeq ($(RISCV_PATH),)
RISCV_GCC := $(CROSS_COMPILE)-gcc
RISCV_GXX := $(CROSS_COMPILE)-g++
RISCV_OBJDUMP := $(CROSS_COMPILE)-objdump
RISCV_GDB := $(CROSS_COMPILE)-gdb
RISCV_AR := $(CROSS_COMPILE)-ar
RISCV_OPENOCD := openocd
else
RISCV_GCC := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-gcc)
RISCV_GXX := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-g++)
RISCV_OBJDUMP := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-objdump)
RISCV_GDB := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-gdb)
RISCV_AR := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-ar)
RISCV_OPENOCD := $(abspath $(RISCV_PATH)/bin/openocd)
PATH := $(abspath $(RISCV_PATH)/bin):$(PATH)
endif
#############################################################
# Compiles an instance of the MEE targeted at $(BOARD)
#############################################################
ifeq ($(BSP),mee)
MEE_SOURCE_PATH ?= freedom-mee
MEE_BSP_PATH = bsp/$(BOARD)
MEE_LDSCRIPT = $(MEE_BSP_PATH)/mee.lds
MEE_HEADER = $(MEE_BSP_PATH)/mee.h
.PHONY: mee
mee: $(MEE_BSP_PATH)/install/stamp
$(MEE_BSP_PATH)/build/Makefile:
@rm -rf $(dir $@)
@mkdir -p $(dir $@)
cd $(dir $@) && \
CFLAGS="-march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g" \
$(abspath $(MEE_SOURCE_PATH)/configure) \
--host=$(CROSS_COMPILE) \
--prefix=$(abspath $(MEE_BSP_PATH)/install) \
--with-preconfigured \
--with-machine-name=$(BOARD) \
--with-machine-header=$(abspath $(MEE_HEADER)) \
--with-machine-ldscript=$(abspath $(MEE_LDSCRIPT)) \
--with-builtin-libgloss
touch -c $@
$(MEE_BSP_PATH)/install/stamp: $(MEE_BSP_PATH)/build/Makefile
$(MAKE) -C $(abspath $(MEE_BSP_PATH)/build) install
date > $@
$(MEE_BSP_PATH)/install/lib/libriscv%.a: $(MEE_BSP_PATH)/install/stamp ;@:
$(MEE_BSP_PATH)/install/lib/libmee.a: $(MEE_BSP_PATH)/install/lib/libriscv__mmachine__$(BOARD).a
cp $< $@
$(MEE_BSP_PATH)/install/lib/libmee-gloss.a: $(MEE_BSP_PATH)/install/lib/libriscv__menv__mee.a
cp $< $@
.PHONY: clean-mee
clean-mee:
rm -rf $(MEE_BSP_PATH)/install
rm -rf $(MEE_BSP_PATH)/build
clean: clean-mee
endif
mee_install: mee
$(MAKE) -C $(MEE_SOURCE_PATH) install
#############################################################
# This Section is for Software Compilation
#############################################################
PROGRAM_ELF = software/$(PROGRAM)/$(PROGRAM)
ifeq ($(BSP),mee)
.PHONY: software
software: $(PROGRAM_ELF)
$(PROGRAM_ELF): \
$(shell find $(abspath $(dir $(PROGRAM_ELF))) -type f) \
$(MEE_BSP_PATH)/install/lib/libmee.a \
$(MEE_BSP_PATH)/install/lib/libmee-gloss.a \
$(MEE_BSP_PATH)/mee.lds
$(MAKE) -C $(dir $@) $(notdir $@) \
CC=$(RISCV_GCC) \
CXX=$(RISCV_GXX) \
CFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g" \
CXXFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g" \
LDFLAGS="-nostartfiles -nostdlib -L$(sort $(dir $(abspath $(filter %.a,$^)))) -T$(abspath $(filter %.lds,$^))" \
LDLIBS="-Wl,--start-group -lc -lmee -lmee-gloss -Wl,--end-group"
touch -c $@
.PHONY: clean-software
clean-software:
$(MAKE) -C $(dir $(PROGRAM_ELF)) clean
clean: clean-software
else
PROGRAM_DIR=$(dir $(PROGRAM_ELF))
.PHONY: software_clean
clean: software_clean
software_clean:
$(MAKE) -C $(PROGRAM_DIR) CC=$(RISCV_GCC) RISCV_ARCH=$(RISCV_ARCH) RISCV_ABI=$(RISCV_ABI) AR=$(RISCV_AR) BSP_BASE=$(abspath bsp) BOARD=$(BOARD) LINK_TARGET=$(LINK_TARGET) clean
.PHONY: software
software: software_clean
$(MAKE) -C $(PROGRAM_DIR) CC=$(RISCV_GCC) RISCV_ARCH=$(RISCV_ARCH) RISCV_ABI=$(RISCV_ABI) AR=$(RISCV_AR) BSP_BASE=$(abspath bsp) BOARD=$(BOARD) LINK_TARGET=$(LINK_TARGET)
dasm: software $(RISCV_OBJDUMP)
$(RISCV_OBJDUMP) -D $(PROGRAM_ELF)
endif
#############################################################
# This Section is for uploading a program to SPI Flash
#############################################################
ifeq ($(BSP),mee)
upload: $(PROGRAM_ELF)
scripts/upload --elf $(PROGRAM_ELF) --openocd $(RISCV_OPENOCD) --gdb $(RISCV_GDB) --openocd-config bsp/$(BOARD)/openocd.cfg
debug: $(PROGRAM_ELF)
scripts/debug --elf $(PROGRAM_ELF) --openocd $(RISCV_OPENOCD) --gdb $(RISCV_GDB) --openocd-config bsp/$(BOARD)/openocd.cfg
else
OPENOCDCFG ?= bsp/env/$(BOARD)/openocd.cfg
OPENOCDARGS += -f $(OPENOCDCFG)
GDB_UPLOAD_ARGS ?= --batch
GDB_UPLOAD_CMDS += -ex "set remotetimeout 240"
GDB_UPLOAD_CMDS += -ex "target extended-remote localhost:$(GDB_PORT)"
GDB_UPLOAD_CMDS += -ex "monitor reset halt"
GDB_UPLOAD_CMDS += -ex "monitor flash protect 0 64 last off"
GDB_UPLOAD_CMDS += -ex "load"
GDB_UPLOAD_CMDS += -ex "monitor resume"
GDB_UPLOAD_CMDS += -ex "monitor shutdown"
GDB_UPLOAD_CMDS += -ex "quit"
upload:
$(RISCV_OPENOCD) $(OPENOCDARGS) & \
$(RISCV_GDB) $(PROGRAM_DIR)/$(PROGRAM) $(GDB_UPLOAD_ARGS) $(GDB_UPLOAD_CMDS) && \
echo "Successfully uploaded '$(PROGRAM)' to $(BOARD)."
endif
#############################################################
# This Section is for launching the debugger
#############################################################
run_openocd:
$(RISCV_OPENOCD) $(OPENOCDARGS)
GDBCMDS += -ex "set remotetimeout 240"
GDBCMDS += -ex "target extended-remote localhost:$(GDB_PORT)"
run_gdb:
$(RISCV_GDB) $(PROGRAM_DIR)/$(PROGRAM) $(GDBARGS) $(GDBCMDS)
|
