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Makefile
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Makefile
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K=kernel
U=user
KR=$K/rust
UR=$U/rust
RT=target/riscv64gc-unknown-none-elf/debug
OBJS = \
$K/entry.o \
$K/start.o \
$K/printf.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/fs.o \
$K/log.o \
$K/sleeplock.o \
$K/file.o \
$K/pipe.o \
$K/exec.o \
$K/sysfile.o \
$K/kernelvec.o \
$K/plic.o \
$K/virtio_disk.o \
$(KR)/$(RT)/librv6_rust.a
# riscv64-unknown-elf- or riscv64-linux-gnu-
# perhaps in /opt/riscv/bin
#TOOLPREFIX =
# Try to infer the correct TOOLPREFIX if not set
ifndef TOOLPREFIX
TOOLPREFIX := $(shell if riscv64-unknown-elf-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
then echo 'riscv64-unknown-elf-'; \
elif riscv64-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
then echo 'riscv64-linux-gnu-'; \
elif riscv64-unknown-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
then echo 'riscv64-unknown-linux-gnu-'; \
else echo "***" 1>&2; \
echo "*** Error: Couldn't find a riscv64 version of GCC/binutils." 1>&2; \
echo "*** To turn off this error, run 'gmake TOOLPREFIX= ...'." 1>&2; \
echo "***" 1>&2; exit 1; fi)
endif
# Try to infer the host rust triple, if not set
ifndef RUST_HOST
RUST_HOST := $(shell rustc -vV | grep host: | sed 's/host: //g')
endif
QEMU = qemu-system-riscv64
CC = $(TOOLPREFIX)gcc
CARGO = cargo
AS = $(TOOLPREFIX)gas
LD = $(TOOLPREFIX)ld
OBJCOPY = $(TOOLPREFIX)objcopy
OBJDUMP = $(TOOLPREFIX)objdump
CFLAGS = -Wall -Werror -O -fno-omit-frame-pointer -ggdb -gdwarf-2
CFLAGS += -MD
CFLAGS += -mcmodel=medany
CFLAGS += -ffreestanding -fno-common -nostdlib -mno-relax
CFLAGS += -I.
CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
CARGO_FLAGS =
# Disable PIE when possible (for Ubuntu 16.10 toolchain)
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]no-pie'),)
CFLAGS += -fno-pie -no-pie
endif
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]nopie'),)
CFLAGS += -fno-pie -nopie
endif
LDFLAGS = -z max-page-size=4096
$K/kernel: $K/rust.h $(OBJS) $K/kernel.ld $U/initcode
$(LD) $(LDFLAGS) -T $K/kernel.ld -o $K/kernel $(OBJS)
$(OBJDUMP) -S $K/kernel > $K/kernel.asm
$(OBJDUMP) -t $K/kernel | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $K/kernel.sym
$U/initcode: $U/initcode.S
$(CC) $(CFLAGS) -march=rv64g -nostdinc -I. -Ikernel -c $U/initcode.S -o $U/initcode.o
$(LD) $(LDFLAGS) -N -e start -Ttext 0 -o $U/initcode.out $U/initcode.o
$(OBJCOPY) -S -O binary $U/initcode.out $U/initcode
$(OBJDUMP) -S $U/initcode.o > $U/initcode.asm
tags: $(OBJS) _init
etags *.S *.c
ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o
$(KR)/$(RT)/librv6_rust.a: $(KR)/build.rs $(shell find $(KR)/src -name "*.rs") $(KR)/Cargo.toml $(KR)/Cargo.lock $(shell find $K/ -name "*.h" | grep -v rust.h)
$(CARGO) clippy $(CARGO_FLAGS) --manifest-path $(KR)/Cargo.toml
$(CARGO) fmt --manifest-path $(KR)/Cargo.toml
$(CARGO) build $(CARGO_FLAGS) --manifest-path $(KR)/Cargo.toml
$(K)/rust.h: $(KR)/$(RT)/librv6_rust.a $(KR)/src
_%: %.o $(ULIB)
$(LD) $(LDFLAGS) -T $U/user.ld -o $@ $^
$(OBJDUMP) -S $@ > $*.asm
$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
$U/_%: $(UR)/%/$(RT)/lib%.a $(ULIB)
$(LD) $(LDFLAGS) -T $U/user.ld -o $@ $(ULIB) $(UR)/$*/$(RT)/lib$*.a
$(OBJDUMP) -S $@ > $*.asm
$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
$(UR)/%/$(RT)/lib%.a: $(UR)/% $(shell find $U/ -name "*.h") $(shell find $K/ -name "*.h" | grep -v rust.h)
$(CARGO) clippy $(CARGO_FLAGS) --manifest-path $(UR)/$*/Cargo.toml
$(CARGO) fmt --manifest-path $(UR)/$*/Cargo.toml
$(CARGO) build $(CARGO_FLAGS) --manifest-path $(UR)/$*/Cargo.toml
$U/usys.S : $U/usys.pl
perl $U/usys.pl > $U/usys.S
$U/usys.o : $U/usys.S
$(CC) $(CFLAGS) -c -o $U/usys.o $U/usys.S
$U/_forktest: $U/forktest.o $(ULIB)
# forktest has less library code linked in - needs to be small
# in order to be able to max out the proc table.
$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_forktest $U/forktest.o $U/ulib.o $U/usys.o
$(OBJDUMP) -S $U/_forktest > $U/forktest.asm
# Prevent deletion of intermediate files, e.g. cat.o, after first build, so
# that disk image changes after first build are persistent until clean. More
# details:
# http://www.gnu.org/software/make/manual/html_node/Chained-Rules.html
.PRECIOUS: %.o %.a
UPROGS=\
$U/_cat\
$U/_echo\
$U/_forktest\
$U/_grep\
$U/_init\
$U/_kill\
$U/_ln\
$U/_ls\
$U/_mkdir\
$U/_rm\
$U/_sh\
$U/_stressfs\
$U/_usertests\
$U/_grind\
$U/_wc\
$U/_zombie\
$U/_sleep\
$U/_pingpong\
$U/_primes\
$U/_find\
$U/_xargs\
$U/_trace\
$U/_sysinfotest\
$U/_shutdown\
$U/_pgtbltest\
$U/_alarmtest\
$U/_cowtest\
fs.img: README $(UPROGS)
cargo run --target $(RUST_HOST) --manifest-path mkfs/Cargo.toml -- -d fs.img README $(UPROGS)
-include kernel/*.d user/*.d $(KR)/$(RT)/*.d $(UR)/*/$(RT)/*.d
clean:
rm -f *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \
*/*.o */*.d */*.asm */*.sym \
$U/initcode $U/initcode.out $K/kernel fs.img \
mkfs/mkfs .gdbinit \
$U/usys.S \
$(UPROGS) \
kernel/rust.h
for path in $$(find . -name "Cargo.toml"); do \
cargo clean --manifest-path $${path}; \
done
# try to generate a unique GDB port
GDBPORT = $(shell expr `id -u` % 5000 + 25000)
# QEMU's gdb stub command line changed in 0.11
QEMUGDB = $(shell if $(QEMU) -help | grep -q '^-gdb'; \
then echo "-gdb tcp::$(GDBPORT)"; \
else echo "-s -p $(GDBPORT)"; fi)
ifndef CPUS
CPUS := 3
endif
ifndef MEM
MEM := 128M
endif
QEMUOPTS = -machine virt -bios none -kernel $K/kernel -m $(MEM) -smp $(CPUS) -nographic
QEMUOPTS += -global virtio-mmio.force-legacy=false
QEMUOPTS += -drive file=fs.img,if=none,format=raw,id=x0
QEMUOPTS += -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
qemu: $K/kernel fs.img
$(QEMU) $(QEMUOPTS)
.gdbinit: .gdbinit.tmpl-riscv
sed "s/:1234/:$(GDBPORT)/" < $^ > $@
qemu-gdb: $K/kernel .gdbinit fs.img
@echo "*** Now run 'gdb' in another window." 1>&2
$(QEMU) $(QEMUOPTS) -S $(QEMUGDB)