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Makefile
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platform := k210
# platform := qemu
K=kernel
U=xv6-user
T=target
OBJS =
ifeq ($(platform), k210)
OBJS += $K/entry_k210.o
else
OBJS += $K/entry_qemu.o
endif
OBJS += \
$K/printf.o \
$K/kalloc.o \
$K/spinlock.o \
$K/string.o \
$K/main.o \
$K/vm.o \
$K/proc.o \
$K/swtch.o \
$K/trampoline.o \
$K/trap.o \
$K/syscall.o \
$K/sysproc.o \
$K/bio.o \
$K/sleeplock.o \
$K/file.o \
$K/pipe.o \
$K/exec.o \
$K/sysfile.o \
$K/kernelvec.o \
$K/timer.o \
$K/logo.o \
$K/test.o \
$K/disk.o \
$K/fat32.o
# $K/fs.o
# $K/log.o
ifeq ($(platform), k210)
OBJS += \
$K/spi.o \
$K/gpiohs.o \
$K/fpioa.o \
$K/utils.o \
$K/sdcard.o \
else
OBJS += \
$K/virtio_disk.o \
$K/plic.o \
$K/uart.o \
$K/console.o
endif
QEMU = qemu-system-riscv64
ifeq ($(platform), k210)
RUSTSBI = ./bootloader/SBI/sbi-k210
else
RUSTSBI = ./bootloader/SBI/sbi-qemu
endif
TOOLPREFIX := riscv64-unknown-elf-
# TOOLPREFIX := riscv64-linux-gnu-
CC = $(TOOLPREFIX)gcc
AS = $(TOOLPREFIX)gas
LD = $(TOOLPREFIX)ld
OBJCOPY = $(TOOLPREFIX)objcopy
OBJDUMP = $(TOOLPREFIX)objdump
CFLAGS = -Wall -Werror -O -fno-omit-frame-pointer -ggdb -g
CFLAGS += -MD
CFLAGS += -mcmodel=medany
CFLAGS += -ffreestanding -fno-common -nostdlib -mno-relax
CFLAGS += -I.
CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
ifeq ($(platform), qemu)
CFLAGS += -DQEMU
endif
LDFLAGS = -z max-page-size=4096
ifeq ($(platform), k210)
linker = ./linker/k210.ld
endif
ifeq ($(platform), qemu)
linker = ./linker/qemu.ld
endif
# Compile Kernel
$T/kernel: $(OBJS) $(linker) $U/initcode
if [ ! -d "./target" ]; then mkdir target; fi
@$(LD) $(LDFLAGS) -T $(linker) -o $T/kernel $(OBJS)
@$(OBJDUMP) -S $T/kernel > $T/kernel.asm
@$(OBJDUMP) -t $T/kernel | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $T/kernel.sym
build: $T/kernel userprogs
# Compile RustSBI
RUSTSBI:
@cd ./bootloader/SBI/rustsbi-k210 && cargo build && cp ./target/riscv64gc-unknown-none-elf/debug/rustsbi-k210 ../sbi-k210
@$(OBJDUMP) -S ./bootloader/SBI/sbi-k210 > $T/rustsbi-k210.asm
@cd ./bootloader/SBI/rustsbi-qemu && cargo build && cp ./target/riscv64gc-unknown-none-elf/debug/rustsbi-qemu ../sbi-qemu
@$(OBJDUMP) -S ./bootloader/SBI/sbi-qemu > $T/rustsbi-qemu.asm
rustsbi-clean:
@cd ./bootloader/SBI/rustsbi-k210 && cargo clean
@cd ./bootloader/SBI/rustsbi-qemu && cargo clean
image = $T/kernel.bin
k210 = $T/k210.bin
k210-serialport := /dev/ttyUSB0
ifndef CPUS
CPUS := 2
endif
QEMUOPTS = -machine virt -bios $(RUSTSBI) -kernel $T/kernel -m 128M -smp $(CPUS) -nographic
# import virtual disk image
QEMUOPTS += -drive file=fs.img,if=none,format=raw,id=x0
QEMUOPTS += -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
run: build
ifeq ($(platform), k210)
@$(OBJCOPY) $T/kernel --strip-all -O binary $(image)
@$(OBJCOPY) $(RUSTSBI) --strip-all -O binary $(k210)
@dd if=$(image) of=$(k210) bs=128k seek=1
@$(OBJDUMP) -D -b binary -m riscv $(k210) > $T/k210.asm
@sudo chmod 777 $(k210-serialport)
@python3 ./tools/kflash.py -p $(k210-serialport) -b 1500000 -t $(k210)
else
@$(QEMU) $(QEMUOPTS)
endif
$U/initcode: $U/initcode.S
$(CC) $(CFLAGS) -march=rv64g -nostdinc -I. -Ikernel -c $U/initcode.S -o $U/initcode.o
$(LD) $(LDFLAGS) -N -e start -Ttext 0 -o $U/initcode.out $U/initcode.o
$(OBJCOPY) -S -O binary $U/initcode.out $U/initcode
$(OBJDUMP) -S $U/initcode.o > $U/initcode.asm
tags: $(OBJS) _init
@etags *.S *.c
ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o
_%: %.o $(ULIB)
$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $@ $^
$(OBJDUMP) -S $@ > $*.asm
$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
$U/usys.S : $U/usys.pl
@perl $U/usys.pl > $U/usys.S
$U/usys.o : $U/usys.S
$(CC) $(CFLAGS) -c -o $U/usys.o $U/usys.S
$U/_forktest: $U/forktest.o $(ULIB)
# forktest has less library code linked in - needs to be small
# in order to be able to max out the proc table.
$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_forktest $U/forktest.o $U/ulib.o $U/usys.o
$(OBJDUMP) -S $U/_forktest > $U/forktest.asm
mkfs/mkfs: mkfs/mkfs.c $K/include/fs.h $K/include/param.h
@gcc -Werror -Wall -I. -o mkfs/mkfs mkfs/mkfs.c
# Prevent deletion of intermediate files, e.g. cat.o, after first build, so
# that disk image changes after first build are persistent until clean. More
# details:
# http://www.gnu.org/software/make/manual/html_node/Chained-Rules.html
.PRECIOUS: %.o
UPROGS=\
$U/_init\
$U/_sh\
$U/_cat\
$U/_echo\
$U/_grep\
$U/_ls\
$U/_test
# $U/_forktest\
# $U/_kill\
# $U/_ln\
# $U/_mkdir\
# $U/_rm\
# $U/_stressfs\
# $U/_usertests\
# $U/_grind\
# $U/_wc\
# $U/_zombie\
UEXTRA = $U/xargstest.sh
userprogs: $(UEXTRA) $(UPROGS)
# Make fs image
fs: mkfs/mkfs README $(UEXTRA) $(UPROGS)
@mkfs/mkfs fs.img README $(UEXTRA) $(UPROGS)
-include kernel/*.d user/*.d
SDCARD ?= /dev/sdb
# Write sdcard
sdcard: fs
@echo "flashing into sd card..."
@sudo dd if=/dev/zero of=$(SDCARD) bs=1M count=50
@sudo dd if=fs.img of=$(SDCARD)
clean:
rm -f *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \
*/*.o */*.d */*.asm */*.sym \
$T/* \
$U/initcode $U/initcode.out \
$K/kernel \
mkfs/mkfs .gdbinit \
$U/usys.S \
$(UPROGS)