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266 líneas
6.9 KiB
266 líneas
6.9 KiB
PROJ := challenge
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EMPTY :=
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SPACE := $(EMPTY) $(EMPTY)
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SLASH := /
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V := @
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#need llvm/cang-3.5+
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#USELLVM := 1
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# try to infer the correct GCCPREFX
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ifndef GCCPREFIX
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GCCPREFIX := $(shell if i386-elf-objdump -i 2>&1 | grep '^elf32-i386$$' >/dev/null 2>&1; \
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then echo 'i386-elf-'; \
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elif objdump -i 2>&1 | grep 'elf32-i386' >/dev/null 2>&1; \
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then echo ''; \
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else echo "***" 1>&2; \
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echo "*** Error: Couldn't find an i386-elf version of GCC/binutils." 1>&2; \
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echo "*** Is the directory with i386-elf-gcc in your PATH?" 1>&2; \
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echo "*** If your i386-elf toolchain is installed with a command" 1>&2; \
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echo "*** prefix other than 'i386-elf-', set your GCCPREFIX" 1>&2; \
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echo "*** environment variable to that prefix and run 'make' again." 1>&2; \
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echo "*** To turn off this error, run 'gmake GCCPREFIX= ...'." 1>&2; \
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echo "***" 1>&2; exit 1; fi)
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endif
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# try to infer the correct QEMU
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ifndef QEMU
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QEMU := $(shell if which qemu-system-i386 > /dev/null; \
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then echo 'qemu-system-i386'; exit; \
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elif which i386-elf-qemu > /dev/null; \
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then echo 'i386-elf-qemu'; exit; \
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elif which qemu > /dev/null; \
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then echo 'qemu'; exit; \
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else \
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echo "***" 1>&2; \
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echo "*** Error: Couldn't find a working QEMU executable." 1>&2; \
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echo "*** Is the directory containing the qemu binary in your PATH" 1>&2; \
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echo "***" 1>&2; exit 1; fi)
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endif
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# eliminate default suffix rules
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.SUFFIXES: .c .S .h
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# delete target files if there is an error (or make is interrupted)
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.DELETE_ON_ERROR:
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# define compiler and flags
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ifndef USELLVM
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HOSTCC := gcc
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HOSTCFLAGS := -g -Wall -O2
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CC := $(GCCPREFIX)gcc
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CFLAGS := -fno-builtin -Wall -ggdb -m32 -gstabs -nostdinc $(DEFS)
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CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
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else
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HOSTCC := clang
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HOSTCFLAGS := -g -Wall -O2
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CC := $(GCCPREFIX)clang
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CFLAGS := -fno-builtin -Wall -g -m32 -mno-sse -nostdinc $(DEFS)
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CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
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endif
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CTYPE := c S
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LD := $(GCCPREFIX)ld
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LDFLAGS := -m $(shell $(LD) -V | grep elf_i386 2>/dev/null)
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LDFLAGS += -nostdlib
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OBJCOPY := $(GCCPREFIX)objcopy
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OBJDUMP := $(GCCPREFIX)objdump
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COPY := cp
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MKDIR := mkdir -p
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MV := mv
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RM := rm -f
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AWK := awk
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SED := sed
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SH := sh
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TR := tr
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TOUCH := touch -c
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OBJDIR := obj
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BINDIR := bin
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ALLOBJS :=
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ALLDEPS :=
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TARGETS :=
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include tools/function.mk
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listf_cc = $(call listf,$(1),$(CTYPE))
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# for cc
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add_files_cc = $(call add_files,$(1),$(CC),$(CFLAGS) $(3),$(2),$(4))
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create_target_cc = $(call create_target,$(1),$(2),$(3),$(CC),$(CFLAGS))
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# for hostcc
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add_files_host = $(call add_files,$(1),$(HOSTCC),$(HOSTCFLAGS),$(2),$(3))
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create_target_host = $(call create_target,$(1),$(2),$(3),$(HOSTCC),$(HOSTCFLAGS))
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cgtype = $(patsubst %.$(2),%.$(3),$(1))
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objfile = $(call toobj,$(1))
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asmfile = $(call cgtype,$(call toobj,$(1)),o,asm)
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outfile = $(call cgtype,$(call toobj,$(1)),o,out)
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symfile = $(call cgtype,$(call toobj,$(1)),o,sym)
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# for match pattern
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match = $(shell echo $(2) | $(AWK) '{for(i=1;i<=NF;i++){if(match("$(1)","^"$$(i)"$$")){exit 1;}}}'; echo $$?)
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# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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# include kernel/user
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INCLUDE += libs/
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CFLAGS += $(addprefix -I,$(INCLUDE))
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LIBDIR += libs
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$(call add_files_cc,$(call listf_cc,$(LIBDIR)),libs,)
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# -------------------------------------------------------------------
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# kernel
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KINCLUDE += kern/debug/ \
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kern/driver/ \
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kern/trap/ \
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kern/mm/
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KSRCDIR += kern/init \
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kern/libs \
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kern/debug \
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kern/driver \
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kern/trap \
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kern/mm
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KCFLAGS += $(addprefix -I,$(KINCLUDE))
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$(call add_files_cc,$(call listf_cc,$(KSRCDIR)),kernel,$(KCFLAGS))
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KOBJS = $(call read_packet,kernel libs)
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# create kernel target
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kernel = $(call totarget,kernel)
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$(kernel): tools/kernel.ld
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$(kernel): $(KOBJS)
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@echo + ld $@
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$(V)$(LD) $(LDFLAGS) -T tools/kernel.ld -o $@ $(KOBJS)
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@$(OBJDUMP) -S $@ > $(call asmfile,kernel)
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@$(OBJDUMP) -t $@ | $(SED) '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $(call symfile,kernel)
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$(call create_target,kernel)
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# -------------------------------------------------------------------
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# create bootblock
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bootfiles = $(call listf_cc,boot)
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$(foreach f,$(bootfiles),$(call cc_compile,$(f),$(CC),$(CFLAGS) -Os -nostdinc))
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bootblock = $(call totarget,bootblock)
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$(bootblock): $(call toobj,$(bootfiles)) | $(call totarget,sign)
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@echo + ld $@
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$(V)$(LD) $(LDFLAGS) -N -e start -Ttext 0x7C00 $^ -o $(call toobj,bootblock)
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@$(OBJDUMP) -S $(call objfile,bootblock) > $(call asmfile,bootblock)
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@$(OBJCOPY) -S -O binary $(call objfile,bootblock) $(call outfile,bootblock)
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@$(call totarget,sign) $(call outfile,bootblock) $(bootblock)
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$(call create_target,bootblock)
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# -------------------------------------------------------------------
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# create 'sign' tools
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$(call add_files_host,tools/sign.c,sign,sign)
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$(call create_target_host,sign,sign)
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# -------------------------------------------------------------------
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# create ucore.img
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UCOREIMG := $(call totarget,ucore.img)
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$(UCOREIMG): $(kernel) $(bootblock)
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$(V)dd if=/dev/zero of=$@ count=10000
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$(V)dd if=$(bootblock) of=$@ conv=notrunc
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$(V)dd if=$(kernel) of=$@ seek=1 conv=notrunc
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$(call create_target,ucore.img)
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# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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$(call finish_all)
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IGNORE_ALLDEPS = clean \
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dist-clean \
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grade \
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touch \
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print-.+ \
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handin
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ifeq ($(call match,$(MAKECMDGOALS),$(IGNORE_ALLDEPS)),0)
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-include $(ALLDEPS)
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endif
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# files for grade script
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TARGETS: $(TARGETS)
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.DEFAULT_GOAL := TARGETS
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.PHONY: qemu qemu-nox debug debug-nox
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qemu: $(UCOREIMG)
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$(V)$(QEMU) -parallel stdio -hda $< -serial null
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qemu-nox: $(UCOREIMG)
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$(V)$(QEMU) -serial mon:stdio -hda $< -nographic
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TERMINAL :=gnome-terminal
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debug: $(UCOREIMG)
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$(V)$(QEMU) -S -s -parallel stdio -hda $< -serial null &
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$(V)sleep 2
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$(V)$(TERMINAL) -e "gdb -q -tui -x tools/gdbinit"
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debug-nox: $(UCOREIMG)
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$(V)$(QEMU) -S -s -serial mon:stdio -hda $< -nographic &
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$(V)sleep 2
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$(V)$(TERMINAL) -e "gdb -q -x tools/gdbinit"
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.PHONY: grade touch
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GRADE_GDB_IN := .gdb.in
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GRADE_QEMU_OUT := .qemu.out
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HANDIN := proj$(PROJ)-handin.tar.gz
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TOUCH_FILES := kern/trap/trap.c
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MAKEOPTS := --quiet --no-print-directory
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grade:
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$(V)$(MAKE) $(MAKEOPTS) clean
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$(V)$(SH) tools/grade.sh
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touch:
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$(V)$(foreach f,$(TOUCH_FILES),$(TOUCH) $(f))
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print-%:
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@echo $($(shell echo $(patsubst print-%,%,$@) | $(TR) [a-z] [A-Z]))
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.PHONY: clean dist-clean handin packall tags
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clean:
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$(V)$(RM) $(GRADE_GDB_IN) $(GRADE_QEMU_OUT) cscope* tags
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-$(RM) -r $(OBJDIR) $(BINDIR)
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dist-clean: clean
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-$(RM) $(HANDIN)
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handin: packall
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@echo Please visit http://learn.tsinghua.edu.cn and upload $(HANDIN). Thanks!
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packall: clean
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@$(RM) -f $(HANDIN)
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@tar -czf $(HANDIN) `find . -type f -o -type d | grep -v '^\.*$$' | grep -vF '$(HANDIN)'`
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tags:
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@echo TAGS ALL
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$(V)rm -f cscope.files cscope.in.out cscope.out cscope.po.out tags
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$(V)find . -type f -name "*.[chS]" >cscope.files
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$(V)cscope -bq
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$(V)ctags -L cscope.files
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