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# Commands:
# make build Build
# make run Build and run in QEMU
# make justrun Run the last build
# make doc Generate docs
# make asm Open the deassemble file of the last build
# make header Open 'objdump -h' of the last build
# make clean Clean
#
# Options:
# arch = x86_64 | riscv32 | aarch64
# d = int | in_asm | ... QEMU debug info
# mode = debug | release
# LOG = off | error | warn | info | debug | trace
# SFSIMG = <sfsimg> SFS image path of user programs
# smp = 1 | 2 | ... SMP core number
# graphic = on | off enable/disable qemu graphical output
# board = fpga Only available on riscv32, build without bbl, run on board
# | raspi3 Only available on aarch64, run on Raspberry Pi 3 Model B/B+
# m_mode Only available on riscv32, build for M-Mode, without MMU
arch ?= riscv32
board ?= raspi3
mode ?= debug
LOG ?= debug
smp ?= 4
# NOTE: crate 'process' use this name 'm_mode' as an environment
# to set interrupt (MIE or SIE)
m_mode ?=
target := $(arch)-blog_os
kernel := target/$(target)/$(mode)/ucore
bin := target/$(target)/$(mode)/kernel.bin
bootimage := target/$(target)/bootimage.bin
user_dir := ../user
user_bin_path := $(user_dir)/target/$(arch)-ucore/debug
user_bins := $(patsubst $(user_bin_path)/%.d, $(user_bin_path)/%, $(wildcard $(user_bin_path)/*.d))
user_obj := build/$(arch)/user.o
export ARCH = $(arch)
export SFSIMG = $(user_dir)/build/user-$(arch).img
ifeq ($(arch), aarch64)
graphic ?= on
else
graphic ?= off
endif
### qemu options ###
qemu_opts := \
-smp cores=$(smp)
ifeq ($(arch), x86_64)
qemu_opts += \
-drive format=raw,file=$(bootimage) \
-drive format=raw,file=$(SFSIMG),media=disk,cache=writeback \
-serial mon:stdio \
-device isa-debug-exit
else ifeq ($(arch), riscv32)
qemu_opts += \
-machine virt \
-kernel $(bin)
ifdef m_mode
qemu_opts += -cpu rv32imacu-nommu
endif
else ifeq ($(arch), aarch64)
qemu_opts += \
-machine $(board) \
-serial null -serial mon:stdio \
-kernel $(bin)
endif
ifneq ($(graphic), on)
qemu_opts += -nographic
endif
ifdef d
qemu_opts += -d $(d)
endif
### build args ###
ifeq ($(arch), riscv32)
ifeq ($(board), fpga)
features += no_bbl
endif
endif
ifneq ($(graphic), on)
features += nographic
endif
ifeq ($(board), raspi3)
# qemu only has generic timer
# TODO: configure system/generic timer automatically
raspi3_timer ?= generic
ifeq ($(raspi3_timer), generic)
features += raspi3_use_generic_timer
endif
endif
ifdef m_mode
features += no_mmu m_mode
bbl_m_mode := --enable-boot-machine
endif
features += board_$(board)
build_args := --target $(target).json --features "$(features)"
ifeq ($(mode), release)
build_args += --release
endif
### prefix ###
ifeq ($(arch), x86_64)
ifeq ($(uname), Darwin)
prefix := x86_64-elf-
endif
else ifeq ($(arch), riscv32)
prefix := riscv64-unknown-elf-
else ifeq ($(arch), aarch64)
prefix ?= aarch64-none-elf-
endif
ld := $(prefix)ld
objdump := $(prefix)objdump
objcopy := $(prefix)objcopy
cc := $(prefix)gcc
as := $(prefix)as
gdb := $(prefix)gdb
.PHONY: all clean run build asm doc justrun debug kernel sfsimg install
all: kernel
clean:
@cargo clean
@cd $(user_dir) && make clean
@rm -rf ../riscv-pk/build
doc:
@cargo rustdoc -- --document-private-items
run: build sfsimg justrun
justrun:
@qemu-system-$(arch) $(qemu_opts) || [ $$? -eq 11 ] # run qemu and assert it exit 11
debug: $(kernel) $(bin)
@qemu-system-$(arch) $(qemu_opts) -s -S &
@sleep 1
@$(gdb) $(kernel) -x ../tools/gdbinit
ifeq ($(arch), x86_64)
build: kernel
else
build: $(bin)
endif
asm:
@$(objdump) -dS $(kernel) | less
header:
@$(objdump) -h $(kernel)
sym:
@$(objdump) -t $(kernel) | less
$(bin): kernel
ifeq ($(arch), riscv32)
ifeq ($(board), fpga)
@cp $(kernel) $@
else
@cd ../riscv-pk && \
mkdir -p build && \
cd build && \
../configure \
$(bbl_m_mode) \
--with-arch=rv32imac \
--disable-fp-emulation \
--host=riscv64-unknown-elf \
--with-payload=$(abspath $(kernel)) && \
make && \
cp bbl ../../kernel/$@
endif
else ifeq ($(arch), aarch64)
@$(objcopy) $(kernel) --strip-all -O binary $@
endif
ifeq ($(arch), x86_64)
kernel:
@bootimage build $(build_args)
else
kernel: sfsimg
ifeq ($(arch), riscv32)
@-patch -p0 -N -b \
$(shell rustc --print sysroot)/lib/rustlib/src/rust/src/libcore/sync/atomic.rs \
src/arch/riscv32/atomic.patch
endif
@CC=$(cc) cargo xbuild $(build_args)
endif
### user programs ###
sfsimg:
@cd $(user_dir) && make sfsimg
# make user.o from binary files
$(user_obj): $(user_bins)
@cd $(user_bin_path) && \
$(ld) -o $(abspath $@) $(patsubst %, -b binary %, $(notdir $(user_bins)))
### install ###
ifeq ($(board), raspi3)
sd_card ?=
ifeq ($(shell uname), Darwin)
sd_card := /Volumes/boot
else ifeq ($(shell uname), Linux)
sd_card := /media/$(shell whoami)/boot
endif
ifdef sd_card
.PHONY:
install: $(bin)
cp $(bin) $(sd_card)/kernel8.img
sudo umount $(sd_card)
endif
endif