/
Makefile
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/
Makefile
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#
# Copyright © 2019 Keith Packard <keithp@keithp.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
SNEK_ROOT = ../..
PROGNAME=snek-hifive1revb
PRODUCT_NAME=snek-hifive1revb
# Note -- must set FREEDOM_METAL before building
FREEDOM_METAL ?= /must/set/FREEDOM_METAL
FREEDOM_METAL_PICO = $(FREEDOM_METAL)/pico
FREEDOM_METAL_GLOSS = $(FREEDOM_METAL)/gloss
LD_SCRIPT = metal.default.lds
FREEDOM_METAL_SRC = $(FREEDOM_METAL)/src
FREEDOM_METAL_DRIVERS = $(FREEDOM_METAL_SRC)/drivers
FREEDOM_METAL_INC = $(FREEDOM_METAL)
SNEK_LOCAL_VPATH = $(SNEK_FE310):$(SNEK_AO):$(FREEDOM_METAL_SRC):$(FREEDOM_METAL_DRIVERS):$(FREEDOM_METAL_PICO):$(FREEDOM_METAL_GLOSS)
PICOLIBC_PRINTF_CFLAGS = -DPICOLIBC_FLOAT_PRINTF_SCANF
PICOLIBC_CFLAGS= \
-specs=picolibc.specs \
-ffunction-sections \
-fdata-sections \
$(PICOLIBC_PRINTF_CFLAGS)
OPT=-Os -g
WARN_FLAGS=-Wall -Wextra -Wcast-align \
-Wpointer-arith \
-Wstrict-prototypes \
-Wmissing-prototypes \
-Wmissing-declarations \
-Wnested-externs \
-Wshadow \
-Warray-bounds=2\
-Wno-missing-prototypes\
-Wno-unused-parameter\
-Wno-strict-prototypes\
-Wno-missing-declarations\
-Wno-cast-align\
-Wno-maybe-uninitialized
AO_CFLAGS=\
-std=gnu99 $(WARN_FLAGS) $(OPT) -g
HIFIVE1REVB_CFLAGS=-march=rv32imac -mabi=ilp32 \
-I. -I$(SNEK_ROOT) -I$(FREEDOM_METAL_INC) $(PICOLIBC_CFLAGS)
CFLAGS = $(HIFIVE1REVB_CFLAGS) $(SNEK_CFLAGS) $(AO_CFLAGS)
LDFLAGS=$(SNEK_LDFLAGS) $(CFLAGS) -n
LIBS=-lm
ARCH=riscv64-unknown-elf
CC=$(ARCH)-gcc
OBJCOPY=$(ARCH)-objcopy
PROG=$(PROGNAME)-$(SNEK_VERSION).elf
HEX=$(PROGNAME)-$(SNEK_VERSION).hex
MAP=$(PROGNAME)-$(SNEK_VERSION).map
.SUFFIXES: .elf .bin
.elf.bin:
$(OBJCOPY) -O binary -S $^ $@
SNEK_LOCAL_SRC = \
vector.S \
entry.S \
init.c \
inline.c \
fixed-clock.c \
riscv_plic0.c \
riscv_clint0.c \
riscv_cpu.c \
sifive_fe310-g000_prci.c \
sifive_fe310-g000_hfrosc.c \
sifive_fe310-g000_hfxosc.c \
sifive_fe310-g000_lfrosc.c \
sifive_fe310-g000_pll.c \
sifive_uart0.c \
sifive_spi0.c \
sifive_gpio-leds.c \
sifive_wdog0.c \
sifive_rtc0.c \
sifive_gpio0.c \
sifive_i2c0.c \
i2c.c \
sifive_local-external-interrupts0.c \
sys_exit.c \
button.c \
cache.c \
clock.c \
cpu.c \
gpio.c \
interrupt.c \
led.c \
lock.c \
memory.c \
pmp.c \
privilege.c \
rtc.c \
shutdown.c \
spi.c \
switch.c \
synchronize_harts.c \
time.c \
timer.c \
trap.S \
uart.c \
watchdog.c \
snek-metal.c \
snek-math.c \
snek-io.c \
snek-input.c \
snek-metal-gpio.c \
snek-metal-uart.c \
snek-metal-builtin.c
SNEK_LOCAL_INC = \
$(SNEK_FE310_INC)
SNEK_LOCAL_BUILTINS = \
snek-math.builtin \
snek-gpio.builtin \
snek-input.builtin \
snek-hifive1revb.builtin
include $(SNEK_ROOT)/snek-install.defs
SRC=$(SNEK_SRC)
OBJ=$(patsubst %.S,%.o,$(patsubst %.c,%.o,$(SRC)))
echo::
echo $(OBJ)
all: $(PROG) $(HEX)
$(PROG): Makefile $(OBJ)
$(call quiet,CC) $(LDFLAGS) -T$(LD_SCRIPT) -Wl,-M=$(MAP) -o $@ $(OBJ) $(LIBS)
$(HEX): $(PROG)
$(OBJCOPY) -O ihex -S $^ $@
$(OBJ): $(SNEK_INC) $(FREEDOM_METAL)
distclean: clean
clean::
rm -f *.o $(PROGNAME)*.elf $(PROGNAME)*.hex $(PROGNAME)*.map ao-product.h
rm -f snek-board-install
snek-board-install: snek-board-install.in
$(SNEK_SED) $^ > $@
chmod +x $@
echo::
echo PROG is $(PROG)
install: $(PROG)
install -d $(DESTDIR)$(SHAREDIR)
install -m 0644 $(PROG) $(DESTDIR)$(SHAREDIR)
uninstall:
$(FREEDOM_METAL):
if [ ! -d $@ ]; then \
echo "Need to set FREEDOM_METAL before building snek-hifive1revb";\
exit 1;\
fi