《操作系统》的实验代码。
選択できるのは25トピックまでです。 トピックは、先頭が英数字で、英数字とダッシュ('-')を使用した35文字以内のものにしてください。

256 行
6.6 KiB

  1. PROJ := challenge
  2. EMPTY :=
  3. SPACE := $(EMPTY) $(EMPTY)
  4. SLASH := /
  5. V := @
  6. # try to infer the correct GCCPREFX
  7. ifndef GCCPREFIX
  8. GCCPREFIX := $(shell if i386-elf-objdump -i 2>&1 | grep '^elf32-i386$$' >/dev/null 2>&1; \
  9. then echo 'i386-elf-'; \
  10. elif objdump -i 2>&1 | grep 'elf32-i386' >/dev/null 2>&1; \
  11. then echo ''; \
  12. else echo "***" 1>&2; \
  13. echo "*** Error: Couldn't find an i386-elf version of GCC/binutils." 1>&2; \
  14. echo "*** Is the directory with i386-elf-gcc in your PATH?" 1>&2; \
  15. echo "*** If your i386-elf toolchain is installed with a command" 1>&2; \
  16. echo "*** prefix other than 'i386-elf-', set your GCCPREFIX" 1>&2; \
  17. echo "*** environment variable to that prefix and run 'make' again." 1>&2; \
  18. echo "*** To turn off this error, run 'gmake GCCPREFIX= ...'." 1>&2; \
  19. echo "***" 1>&2; exit 1; fi)
  20. endif
  21. # try to infer the correct QEMU
  22. ifndef QEMU
  23. QEMU := $(shell if which qemu > /dev/null; \
  24. then echo 'qemu'; exit; \
  25. elif which i386-elf-qemu > /dev/null; \
  26. then echo 'i386-elf-qemu'; exit; \
  27. else \
  28. echo "***" 1>&2; \
  29. echo "*** Error: Couldn't find a working QEMU executable." 1>&2; \
  30. echo "*** Is the directory containing the qemu binary in your PATH" 1>&2; \
  31. echo "***" 1>&2; exit 1; fi)
  32. endif
  33. # eliminate default suffix rules
  34. .SUFFIXES: .c .S .h
  35. # delete target files if there is an error (or make is interrupted)
  36. .DELETE_ON_ERROR:
  37. # define compiler and flags
  38. HOSTCC := gcc
  39. HOSTCFLAGS := -g -Wall -O2
  40. CC := $(GCCPREFIX)gcc
  41. CFLAGS := -fno-builtin -Wall -ggdb -m32 -gstabs -nostdinc $(DEFS)
  42. CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
  43. CTYPE := c S
  44. LD := $(GCCPREFIX)ld
  45. LDFLAGS := -m $(shell $(LD) -V | grep elf_i386 2>/dev/null)
  46. LDFLAGS += -nostdlib
  47. OBJCOPY := $(GCCPREFIX)objcopy
  48. OBJDUMP := $(GCCPREFIX)objdump
  49. COPY := cp
  50. MKDIR := mkdir -p
  51. MV := mv
  52. RM := rm -f
  53. AWK := awk
  54. SED := sed
  55. SH := sh
  56. TR := tr
  57. TOUCH := touch -c
  58. OBJDIR := obj
  59. BINDIR := bin
  60. ALLOBJS :=
  61. ALLDEPS :=
  62. TARGETS :=
  63. include tools/function.mk
  64. listf_cc = $(call listf,$(1),$(CTYPE))
  65. # for cc
  66. add_files_cc = $(call add_files,$(1),$(CC),$(CFLAGS) $(3),$(2),$(4))
  67. create_target_cc = $(call create_target,$(1),$(2),$(3),$(CC),$(CFLAGS))
  68. # for hostcc
  69. add_files_host = $(call add_files,$(1),$(HOSTCC),$(HOSTCFLAGS),$(2),$(3))
  70. create_target_host = $(call create_target,$(1),$(2),$(3),$(HOSTCC),$(HOSTCFLAGS))
  71. cgtype = $(patsubst %.$(2),%.$(3),$(1))
  72. objfile = $(call toobj,$(1))
  73. asmfile = $(call cgtype,$(call toobj,$(1)),o,asm)
  74. outfile = $(call cgtype,$(call toobj,$(1)),o,out)
  75. symfile = $(call cgtype,$(call toobj,$(1)),o,sym)
  76. # for match pattern
  77. match = $(shell echo $(2) | $(AWK) '{for(i=1;i<=NF;i++){if(match("$(1)","^"$$(i)"$$")){exit 1;}}}'; echo $$?)
  78. # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
  79. # include kernel/user
  80. INCLUDE += libs/
  81. CFLAGS += $(addprefix -I,$(INCLUDE))
  82. LIBDIR += libs
  83. $(call add_files_cc,$(call listf_cc,$(LIBDIR)),libs,)
  84. # -------------------------------------------------------------------
  85. # kernel
  86. KINCLUDE += kern/debug/ \
  87. kern/driver/ \
  88. kern/trap/ \
  89. kern/mm/
  90. KSRCDIR += kern/init \
  91. kern/libs \
  92. kern/debug \
  93. kern/driver \
  94. kern/trap \
  95. kern/mm
  96. KCFLAGS += $(addprefix -I,$(KINCLUDE))
  97. $(call add_files_cc,$(call listf_cc,$(KSRCDIR)),kernel,$(KCFLAGS))
  98. KOBJS = $(call read_packet,kernel libs)
  99. # create kernel target
  100. kernel = $(call totarget,kernel)
  101. $(kernel): tools/kernel.ld
  102. $(kernel): $(KOBJS)
  103. @echo + ld $@
  104. $(V)$(LD) $(LDFLAGS) -T tools/kernel.ld -o $@ $(KOBJS)
  105. @$(OBJDUMP) -S $@ > $(call asmfile,kernel)
  106. @$(OBJDUMP) -t $@ | $(SED) '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $(call symfile,kernel)
  107. $(call create_target,kernel)
  108. # -------------------------------------------------------------------
  109. # create bootblock
  110. bootfiles = $(call listf_cc,boot)
  111. $(foreach f,$(bootfiles),$(call cc_compile,$(f),$(CC),$(CFLAGS) -Os -nostdinc))
  112. bootblock = $(call totarget,bootblock)
  113. $(bootblock): $(call toobj,$(bootfiles)) | $(call totarget,sign)
  114. @echo + ld $@
  115. $(V)$(LD) $(LDFLAGS) -N -e start -Ttext 0x7C00 $^ -o $(call toobj,bootblock)
  116. @$(OBJDUMP) -S $(call objfile,bootblock) > $(call asmfile,bootblock)
  117. @$(OBJCOPY) -S -O binary $(call objfile,bootblock) $(call outfile,bootblock)
  118. @$(call totarget,sign) $(call outfile,bootblock) $(bootblock)
  119. $(call create_target,bootblock)
  120. # -------------------------------------------------------------------
  121. # create 'sign' tools
  122. $(call add_files_host,tools/sign.c,sign,sign)
  123. $(call create_target_host,sign,sign)
  124. # -------------------------------------------------------------------
  125. # create ucore.img
  126. UCOREIMG := $(call totarget,ucore.img)
  127. $(UCOREIMG): $(kernel) $(bootblock)
  128. $(V)dd if=/dev/zero of=$@ count=10000
  129. $(V)dd if=$(bootblock) of=$@ conv=notrunc
  130. $(V)dd if=$(kernel) of=$@ seek=1 conv=notrunc
  131. $(call create_target,ucore.img)
  132. # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
  133. $(call finish_all)
  134. IGNORE_ALLDEPS = clean \
  135. dist-clean \
  136. grade \
  137. touch \
  138. print-.+ \
  139. handin
  140. ifeq ($(call match,$(MAKECMDGOALS),$(IGNORE_ALLDEPS)),0)
  141. -include $(ALLDEPS)
  142. endif
  143. # files for grade script
  144. TARGETS: $(TARGETS)
  145. .DEFAULT_GOAL := TARGETS
  146. .PHONY: qemu qemu-nox debug debug-nox
  147. qemu: $(UCOREIMG)
  148. $(V)$(QEMU) -parallel stdio -hda $< -serial null
  149. qemu-nox: $(UCOREIMG)
  150. $(V)$(QEMU) -serial mon:stdio -hda $< -nographic
  151. TERMINAL :=gnome-terminal
  152. debug: $(UCOREIMG)
  153. $(V)$(QEMU) -S -s -parallel stdio -hda $< -serial null &
  154. $(V)sleep 2
  155. $(V)$(TERMINAL) -e "gdb -q -tui -x tools/gdbinit"
  156. debug-nox: $(UCOREIMG)
  157. $(V)$(QEMU) -S -s -serial mon:stdio -hda $< -nographic &
  158. $(V)sleep 2
  159. $(V)$(TERMINAL) -e "gdb -q -x tools/gdbinit"
  160. .PHONY: grade touch
  161. GRADE_GDB_IN := .gdb.in
  162. GRADE_QEMU_OUT := .qemu.out
  163. HANDIN := proj$(PROJ)-handin.tar.gz
  164. TOUCH_FILES := kern/trap/trap.c
  165. MAKEOPTS := --quiet --no-print-directory
  166. grade:
  167. $(V)$(MAKE) $(MAKEOPTS) clean
  168. $(V)$(SH) tools/grade.sh
  169. touch:
  170. $(V)$(foreach f,$(TOUCH_FILES),$(TOUCH) $(f))
  171. print-%:
  172. @echo $($(shell echo $(patsubst print-%,%,$@) | $(TR) [a-z] [A-Z]))
  173. .PHONY: clean dist-clean handin packall tags
  174. clean:
  175. $(V)$(RM) $(GRADE_GDB_IN) $(GRADE_QEMU_OUT) cscope* tags
  176. -$(RM) -r $(OBJDIR) $(BINDIR)
  177. dist-clean: clean
  178. -$(RM) $(HANDIN)
  179. handin: packall
  180. @echo Please visit http://learn.tsinghua.edu.cn and upload $(HANDIN). Thanks!
  181. packall: clean
  182. @$(RM) -f $(HANDIN)
  183. @tar -czf $(HANDIN) `find . -type f -o -type d | grep -v '^\.*$$' | grep -vF '$(HANDIN)'`
  184. tags:
  185. @echo TAGS ALL
  186. $(V)rm -f cscope.files cscope.in.out cscope.out cscope.po.out tags
  187. $(V)find . -type f -name "*.[chS]" >cscope.files
  188. $(V)cscope -bq
  189. $(V)ctags -L cscope.files