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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 elf-h Open 'objdump -h' of the last build
# make clean Clean
#
# Options:
# arch = x86_64 | riscv32
# d = int | in_asm | ... QEMU debug info
# mode = debug | release
# LOG = off | error | warn | info | debug | trace
# smp SMP core number
# board Only available on riscv32, build without bbl, run on board
arch ?= riscv32
mode ?= debug
LOG ?= debug
smp ?= 4
target := $(arch)-blog_os
kernel := target/$(target)/$(mode)/ucore
bin := target/$(target)/$(mode)/kernel.bin
bootimage := target/$(target)/bootimage.bin
user_bin_path := ../user/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
SFSIMG := ../user/ucore32.img
ifeq ($(arch), x86_64)
qemu_opts := \
-drive format=raw,file=$(bootimage) \
-drive format=raw,file=$(SFSIMG),media=disk,cache=writeback \
-smp $(smp) \
-serial mon:stdio \
-device isa-debug-exit
endif
ifeq ($(arch), riscv32)
qemu_opts := -machine virt -kernel $(bin) -nographic -smp cpus=$(smp)
endif
ifdef board
features := $(features) no_bbl
endif
# Link user binaries at ../user
ifdef link_user
features := $(features) link_user_program
assembly_object_files := $(assembly_object_files) $(user_obj)
endif
ifdef d
qemu_opts := $(qemu_opts) -d $(d)
endif
build_args := --target $(target).json --features "$(features)"
ifeq ($(mode), release)
build_args := $(build_args) --release
endif
ifeq ($(OS),Windows_NT)
uname := Win32
else
uname := $(shell uname)
endif
ifeq ($(uname), Darwin)
prefix := x86_64-elf-
endif
ifeq ($(arch), riscv32)
prefix := riscv64-unknown-elf-
endif
ld := $(prefix)ld
objdump := $(prefix)objdump
cc := $(prefix)gcc
as := $(prefix)as
.PHONY: all clean run build asm doc justrun kernel
all: $(kernel)
clean:
@cargo clean
doc:
@cargo rustdoc -- --document-private-items
run: build justrun
justrun:
@qemu-system-$(arch) $(qemu_opts) || [ $$? -eq 11 ] # run qemu and assert it exit 11
debug: $(bin)
@qemu-system-$(arch) $(qemu_opts) -s -S &
ifeq ($(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
ifdef board
@cp $(kernel) $@
else
@cd ../riscv-pk && \
mkdir -p build && \
cd build && \
../configure \
--enable-32bit \
--enable-logo \
--disable-fp-emulation \
--host=riscv64-unknown-elf \
--with-payload=$(abspath $(kernel)) && \
make && \
cp bbl ../../kernel/$@
endif
kernel:
ifeq ($(arch), x86_64)
@bootimage build $(build_args)
else
@CC=$(cc) cargo xbuild $(build_args)
endif
# make user.o from binary files
$(user_obj): $(user_bins)
@cd $(user_bin_path) && \
$(ld) -o $(abspath $@) $(patsubst %, -b binary %, $(notdir $(user_bins)))