Makefile
PROJ := 5
EMPTY :=
SPACE := $(EMPTY) $(EMPTY)
SLASH := /
V := @
# try to infer the correct GCCPREFX
ifndef GCCPREFIX
GCCPREFIX := $(shell if i386-elf-objdump -i 2>&1 | grep '^elf32-i386$$' >/dev/null 2>&1; \
then echo 'i386-elf-'; \
elif objdump -i 2>&1 | grep 'elf32-i386' >/dev/null 2>&1; \
then echo ''; \
else echo "***" 1>&2; \
echo "*** Error: Couldn't find an i386-elf version of GCC/binutils." 1>&2; \
echo "*** Is the directory with i386-elf-gcc in your PATH?" 1>&2; \
echo "*** If your i386-elf toolchain is installed with a command" 1>&2; \
echo "*** prefix other than 'i386-elf-', set your GCCPREFIX" 1>&2; \
echo "*** environment variable to that prefix and run 'make' again." 1>&2; \
echo "*** To turn off this error, run 'gmake GCCPREFIX= ...'." 1>&2; \
echo "***" 1>&2; exit 1; fi)
endif
# try to infer the correct QEMU
ifndef QEMU
QEMU := $(shell if which qemu-system-i386 > /dev/null; \
then echo 'qemu-system-i386'; exit; \
elif which i386-elf-qemu > /dev/null; \
then echo 'i386-elf-qemu'; exit; \
else \
echo "***" 1>&2; \
echo "*** Error: Couldn't find a working QEMU executable." 1>&2; \
echo "*** Is the directory containing the qemu binary in your PATH" 1>&2; \
echo "***" 1>&2; exit 1; fi)
endif
# eliminate default suffix rules
.SUFFIXES: .c .S .h
# delete target files if there is an error (or make is interrupted)
.DELETE_ON_ERROR:
# define compiler and flags
HOSTCC := gcc
## for mksfs program, -D_FILE_OFFSET_BITS=64 can guarantee sizeof(off_t)==8, sizeof(ino_t) ==8
## for 64 bit gcc, to build 32-bit mksfs, you can use below line
## HOSTCFLAGS := -g -Wall -m32 -O2 -D_FILE_OFFSET_BITS=64
HOSTCFLAGS := -g -Wall -O2 -D_FILE_OFFSET_BITS=64
GDB := $(GCCPREFIX)gdb
CC := $(GCCPREFIX)gcc
CFLAGS := -fno-builtin -fno-PIC -Wall -ggdb -m32 -gstabs -nostdinc $(DEFS)
CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
CTYPE := c S
LD := $(GCCPREFIX)ld
LDFLAGS := -m $(shell $(LD) -V | grep elf_i386 2>/dev/null | head -n 1)
LDFLAGS += -nostdlib
OBJCOPY := $(GCCPREFIX)objcopy
OBJDUMP := $(GCCPREFIX)objdump
COPY := cp
MKDIR := mkdir -p
MV := mv
RM := rm -f
AWK := awk
SED := sed
SH := sh
TR := tr
TOUCH := touch -c
OBJDIR := obj
BINDIR := bin
ALLOBJS :=
ALLDEPS :=
TARGETS :=
USER_PREFIX := __user_
ifeq ($(shell uname), Linux)
M := M
else
M := m
endif
include tools/function.mk
listf_cc = $(call listf,$(1),$(CTYPE))
# for cc
add_files_cc = $(call add_files,$(1),$(CC),$(CFLAGS) $(3),$(2),$(4))
create_target_cc = $(call create_target,$(1),$(2),$(3),$(CC),$(CFLAGS))
# for hostcc
add_files_host = $(call add_files,$(1),$(HOSTCC),$(HOSTCFLAGS),$(2),$(3))
create_target_host = $(call create_target,$(1),$(2),$(3),$(HOSTCC),$(HOSTCFLAGS))
cgtype = $(patsubst %.$(2),%.$(3),$(1))
objfile = $(call toobj,$(1))
asmfile = $(call cgtype,$(call toobj,$(1)),o,asm)
outfile = $(call cgtype,$(call toobj,$(1)),o,out)
symfile = $(call cgtype,$(call toobj,$(1)),o,sym)
filename = $(basename $(notdir $(1)))
ubinfile = $(call outfile,$(addprefix $(USER_PREFIX),$(call filename,$(1))))
# for match pattern
match = $(shell echo $(2) | $(AWK) '{for(i=1;i<=NF;i++){if(match("$(1)","^"$$(i)"$$")){exit 1;}}}'; echo $$?)
# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
# include kernel/user
INCLUDE += libs/
CFLAGS += $(addprefix -I,$(INCLUDE))
LIBDIR += libs
$(call add_files_cc,$(call listf_cc,$(LIBDIR)),libs,)
# -------------------------------------------------------------------
# user programs
UINCLUDE += user/include/ \
user/libs/
USRCDIR += user
ULIBDIR += user/libs
UCFLAGS += $(addprefix -I,$(UINCLUDE))
USER_BINS :=
$(call add_files_cc,$(call listf_cc,$(ULIBDIR)),ulibs,$(UCFLAGS))
$(call add_files_cc,$(call listf_cc,$(USRCDIR)),uprog,$(UCFLAGS))
UOBJS := $(call read_packet,ulibs libs)
define uprog_ld
__user_bin__ := $$(call ubinfile,$(1))
USER_BINS += $$(__user_bin__)
$$(__user_bin__): tools/user.ld
$$(__user_bin__): $$(UOBJS)
$$(__user_bin__): $(1) | $$$$(dir $$$$@)
$(V)$(LD) $(LDFLAGS) -T tools/user.ld -o $$@ $$(UOBJS) $(1)
@$(OBJDUMP) -S $$@ > $$(call cgtype,$$<,o,asm)
@$(OBJDUMP) -t $$@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$$$/d' > $$(call cgtype,$$<,o,sym)
endef
$(foreach p,$(call read_packet,uprog),$(eval $(call uprog_ld,$(p))))
# -------------------------------------------------------------------
# kernel
KINCLUDE += kern/debug/ \
kern/driver/ \
kern/trap/ \
kern/mm/ \
kern/libs/ \
kern/sync/ \
kern/fs/ \
kern/process/ \
kern/schedule/ \
kern/syscall/ \
kern/fs/swap/ \
kern/fs/vfs/ \
kern/fs/devs/ \
kern/fs/sfs/
KSRCDIR += kern/init \
kern/libs \
kern/debug \
kern/driver \
kern/trap \
kern/mm \
kern/sync \
kern/fs \
kern/process \
kern/schedule \
kern/syscall \
kern/fs/swap \
kern/fs/vfs \
kern/fs/devs \
kern/fs/sfs
KCFLAGS += $(addprefix -I,$(KINCLUDE))
$(call add_files_cc,$(call listf_cc,$(KSRCDIR)),kernel,$(KCFLAGS))
KOBJS = $(call read_packet,kernel libs)
# create kernel target
kernel = $(call totarget,kernel)
$(kernel): tools/kernel.ld
$(kernel): $(KOBJS)
@echo + ld $@
$(V)$(LD) $(LDFLAGS) -T tools/kernel.ld -o $@ $(KOBJS)
@$(OBJDUMP) -S $@ > $(call asmfile,kernel)
@$(OBJDUMP) -t $@ | $(SED) '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $(call symfile,kernel)
$(call create_target,kernel)
# -------------------------------------------------------------------
# create bootblock
bootfiles = $(call listf_cc,boot)
$(foreach f,$(bootfiles),$(call cc_compile,$(f),$(CC),$(CFLAGS) -Os -nostdinc))
bootblock = $(call totarget,bootblock)
$(bootblock): $(call toobj,boot/bootasm.S) $(call toobj,$(bootfiles)) | $(call totarget,sign)
@echo + ld $@
$(V)$(LD) $(LDFLAGS) -N -T tools/boot.ld $^ -o $(call toobj,bootblock)
@$(OBJDUMP) -S $(call objfile,bootblock) > $(call asmfile,bootblock)
@$(OBJCOPY) -S -O binary $(call objfile,bootblock) $(call outfile,bootblock)
@$(call totarget,sign) $(call outfile,bootblock) $(bootblock)
$(call create_target,bootblock)
# -------------------------------------------------------------------
# create 'sign' tools
$(call add_files_host,tools/sign.c,sign,sign)
$(call create_target_host,sign,sign)
# -------------------------------------------------------------------
# create 'mksfs' tools
$(call add_files_host,tools/mksfs.c,mksfs,mksfs)
$(call create_target_host,mksfs,mksfs)
# -------------------------------------------------------------------
# create ucore.img
UCOREIMG := $(call totarget,ucore.img)
$(UCOREIMG): $(kernel) $(bootblock)
$(V)dd if=/dev/zero of=$@ count=10000
$(V)dd if=$(bootblock) of=$@ conv=notrunc
$(V)dd if=$(kernel) of=$@ seek=1 conv=notrunc
$(call create_target,ucore.img)
# -------------------------------------------------------------------
# create swap.img
SWAPIMG := $(call totarget,swap.img)
$(SWAPIMG):
$(V)dd if=/dev/zero of=$@ bs=1$(M) count=128
$(call create_target,swap.img)
# -------------------------------------------------------------------
# create sfs.img
SFSIMG := $(call totarget,sfs.img)
SFSBINS :=
SFSROOT := disk0
define fscopy
__fs_bin__ := $(2)$(SLASH)$(patsubst $(USER_PREFIX)%,%,$(basename $(notdir $(1))))
SFSBINS += $$(__fs_bin__)
$$(__fs_bin__): $(1) | $$$$(dir $@)
@$(COPY) $$< $$@
endef
$(foreach p,$(USER_BINS),$(eval $(call fscopy,$(p),$(SFSROOT)$(SLASH))))
$(SFSROOT):
$(V)$(MKDIR) $@
$(SFSIMG): $(SFSROOT) $(SFSBINS) | $(call totarget,mksfs)
$(V)dd if=/dev/zero of=$@ bs=1$(M) count=128
@$(call totarget,mksfs) $@ $(SFSROOT)
$(call create_target,sfs.img)
# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
$(call finish_all)
IGNORE_ALLDEPS = clean \
dist-clean \
grade \
touch \
print-.+ \
run-.+ \
build-.+ \
sh-.+ \
script-.+ \
handin
ifeq ($(call match,$(MAKECMDGOALS),$(IGNORE_ALLDEPS)),0)
-include $(ALLDEPS)
endif
# files for grade script
TARGETS: $(TARGETS)
.DEFAULT_GOAL := TARGETS
QEMUOPTS = -hda $(UCOREIMG) -drive file=$(SWAPIMG),media=disk,cache=writeback -drive file=$(SFSIMG),media=disk,cache=writeback
.PHONY: qemu qemu-nox debug debug-nox monitor
qemu-mon: $(UCOREIMG) $(SWAPIMG) $(SFSIMG)
$(V)$(QEMU) -monitor stdio $(QEMUOPTS) -serial null
qemu: $(UCOREIMG) $(SWAPIMG) $(SFSIMG)
$(V)$(QEMU) -serial stdio $(QEMUOPTS) -parallel null
# $(V)$(QEMU) -parallel stdio $(QEMUOPTS) -serial null
qemu-nox: $(UCOREIMG) $(SWAPIMG) $(SFSIMG)
$(V)$(QEMU) -serial mon:stdio $(QEMUOPTS) -nographic
monitor: $(UCOREIMG) $(SWAPING) $(SFSIMG)
$(V)$(QEMU) -monitor stdio $(QEMUOPTS) -serial null
TERMINAL := gnome-terminal
dbg4ec: $(UCOREIMG) $(SWAPIMG) $(SFSIMG)
$(V)$(QEMU) -S -s -parallel stdio $(QEMUOPTS) -serial null
debug: $(UCOREIMG) $(SWAPIMG) $(SFSIMG)
$(V)$(QEMU) -S -s -parallel stdio $(QEMUOPTS) -serial null &
$(V)sleep 2
$(V)$(TERMINAL) -e "$(GDB) -q -x tools/gdbinit"
debug-nox: $(UCOREIMG) $(SWAPIMG) $(SFSIMG)
$(V)$(QEMU) -S -s -serial mon:stdio $(QEMUOPTS) -nographic &
$(V)sleep 2
$(V)$(TERMINAL) -e "$(GDB) -q -x tools/gdbinit"
RUN_PREFIX := _binary_$(OBJDIR)_$(USER_PREFIX)
MAKEOPTS := --quiet --no-print-directory
run-%: build-%
$(V)$(QEMU) -parallel stdio $(QEMUOPTS) -serial null
sh-%: script-%
$(V)$(QEMU) -parallel stdio $(QEMUOPTS) -serial null
run-nox-%: build-%
$(V)$(QEMU) -serial mon:stdio $(QEMUOPTS) -nographic
build-%: touch
$(V)$(MAKE) $(MAKEOPTS) "DEFS+=-DTEST=$*"
script-%: touch
$(V)$(MAKE) $(MAKEOPTS) "DEFS+=-DTEST=sh -DTESTSCRIPT=/script/$*"
.PHONY: grade touch buildfs
GRADE_GDB_IN := .gdb.in
GRADE_QEMU_OUT := .qemu.out
HANDIN := proj$(PROJ)-handin.tar.gz
TOUCH_FILES := kern/process/proc.c
MAKEOPTS := --quiet --no-print-directory
grade:
$(V)$(MAKE) $(MAKEOPTS) clean
$(V)$(SH) tools/grade.sh
touch:
$(V)$(foreach f,$(TOUCH_FILES),$(TOUCH) $(f))
print-%:
@echo $($(shell echo $(patsubst print-%,%,$@) | $(TR) [a-z] [A-Z]))
.PHONY: clean dist-clean handin packall
clean:
$(V)$(RM) $(GRADE_GDB_IN) $(GRADE_QEMU_OUT) $(SFSBINS)
-$(RM) -r $(OBJDIR) $(BINDIR)
dist-clean: clean
-$(RM) $(HANDIN)
handin: packall
@echo Please visit http://learn.tsinghua.edu.cn and upload $(HANDIN). Thanks!
packall: clean
@$(RM) -f $(HANDIN)
@tar -czf $(HANDIN) `find . -type f -o -type d | grep -v '^\.*$$' | grep -vF '$(HANDIN)'`Last updated