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Makefile.housekeeping 14KB

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  1. # -*- makefile -*- : Force emacs to use Makefile mode
  2. # This file contains various boring housekeeping functions that would
  3. # otherwise seriously clutter up the main Makefile.
  4. # Objects to be removed by "make clean"
  5. #
  6. CLEANUP := $(BIN)/*.* # *.* to avoid catching the "CVS" directory
  7. # Version number calculations
  8. #
  9. VERSION_MAJOR = 5
  10. VERSION_MINOR = 5
  11. VERSION_PATCH = 0
  12. EXTRAVERSION =
  13. MM_VERSION = $(VERSION_MAJOR).$(VERSION_MINOR)
  14. VERSION = $(MM_VERSION).$(VERSION_PATCH)$(EXTRAVERSION)
  15. CFLAGS += -DVERSION_MAJOR=$(VERSION_MAJOR) \
  16. -DVERSION_MINOR=$(VERSION_MINOR) \
  17. -DVERSION=\"$(VERSION)\"
  18. IDENT = '$(@F) $(VERSION) (GPL) etherboot.org'
  19. version :
  20. @echo $(VERSION)
  21. # Check for tools that can cause failed builds
  22. #
  23. .toolcheck : Makefile Config
  24. @if $(CC) -v 2>&1 | grep -is 'gcc version 2\.96' > /dev/null; then \
  25. echo 'gcc 2.96 is unsuitable for compiling Etherboot'; \
  26. echo 'Use gcc 2.95 or gcc 3.x instead'; \
  27. exit 1; \
  28. fi
  29. @if [ `perl -e 'use bytes; print chr(255)' | wc -c` = 2 ]; then \
  30. echo 'Your Perl version has a Unicode handling bug'; \
  31. echo 'Execute this command before compiling Etherboot:'; \
  32. echo 'export LANG=$${LANG%.UTF-8}'; \
  33. exit 1; \
  34. fi
  35. @$(TOUCH) $@
  36. VERYCLEANUP += .toolcheck
  37. # Check for an old version of gas (binutils 2.9.1)
  38. #
  39. OLDGAS := $(shell $(AS) --version | grep -q '2\.9\.1' && echo -DGAS291)
  40. CFLAGS += $(OLDGAS)
  41. oldgas :
  42. @echo $(oldgas)
  43. # compiler.h is needed for our linking and debugging system
  44. #
  45. CFLAGS += -include compiler.h
  46. # config/%.h files are generated from config.h using mkconfig.pl
  47. config/%.h : config.h
  48. $(MKCONFIG) $<
  49. CLEANUP += config/*.h
  50. # SRCDIRS lists all directories containing source files.
  51. srcdirs :
  52. @echo $(SRCDIRS)
  53. # SRCS lists all .c or .S files found in any SRCDIR
  54. #
  55. SRCS += $(wildcard $(patsubst %,%/*.c,$(SRCDIRS)))
  56. SRCS += $(wildcard $(patsubst %,%/*.S,$(SRCDIRS)))
  57. srcs :
  58. @echo $(SRCS)
  59. # AUTO_SRCS lists all files in SRCS that are not mentioned in
  60. # NON_AUTO_SRCS. Files should be added to NON_AUTO_SRCS if they
  61. # cannot be built using the standard build template.
  62. #
  63. AUTO_SRCS = $(filter-out $(NON_AUTO_SRCS),$(SRCS))
  64. autosrcs :
  65. @echo $(AUTO_SRCS)
  66. # We automatically generate rules for any file mentioned in AUTO_SRCS
  67. # using the following set of templates. It would be cleaner to use
  68. # $(eval ...), but this function exists only in GNU make >= 3.80.
  69. # src_template : generate Makefile rules for a given source file
  70. #
  71. # $(1) is the full path to the source file (e.g. "drivers/net/rtl8139.c")
  72. # $(2) is the full path to the .d file (e.g. "bin/deps/drivers/net/rtl8139.d")
  73. # $(3) is the source type (e.g. "c")
  74. # $(4) is the source base name (e.g. "rtl8139")
  75. #
  76. define src_template
  77. @echo "Generating Makefile rules for $(1)"
  78. @$(MKDIR) -p $(dir $(2))
  79. @$(RM) $(2)
  80. @$(TOUCH) $(2)
  81. $(foreach OBJ,$(if $(OBJS_$(4)),$(OBJS_$(4)),$(4)), \
  82. $(call obj_template,$(1),$(2),$(3),$(OBJ)))
  83. @$(PARSEROM) $(1) >> $(2)
  84. endef
  85. # obj_template : generate Makefile rules for a given resultant object
  86. # of a particular source file. (We can have multiple objects per
  87. # source file via the OBJS_xxx list.)
  88. #
  89. # $(1) is the full path to the source file (e.g. "drivers/net/rtl8139.c")
  90. # $(2) is the full path to the .d file (e.g. "bin/deps/drivers/net/rtl8139.d")
  91. # $(3) is the source type (e.g. "c")
  92. # $(4) is the object name (e.g. "rtl8139")
  93. #
  94. define obj_template
  95. @$(CPP) $(CFLAGS) $(CFLAGS_$(3)) $(CFLAGS_$(4)) \
  96. -M $(1) -MT "$(4)_DEPS" -MG | tr : = >> $(2)
  97. @echo -e '\n$$(BIN)/$(4).o : $(1) $$(MAKEDEPS) $$($(4)_DEPS)' \
  98. '\n\t$$(RULE_$(3))\n' \
  99. '\nBOBJS += $$(BIN)/$(4).o\n' \
  100. $(foreach TGT,$(DEBUG_TARGETS), \
  101. $(if $(RULE_$(3)_to_$(TGT)), \
  102. '\n$$(BIN)/$(4).$(TGT) : $(1) $$(MAKEDEPS) $$($(4)_DEPS)' \
  103. '\n\t$$(RULE_$(3)_to_$(TGT))\n' \
  104. '\n$(TGT)_OBJS += $$(BIN)/$(4).$(TGT)\n' ) ) \
  105. '\n$(2) : $$($(4)_DEPS)\n' \
  106. '\nTAGS : $$($(4)_DEPS)\n' \
  107. >> $(2)
  108. endef
  109. # Rule to generate the Makefile rules files to be included
  110. #
  111. $(BIN)/deps/%.d : % $(MAKEDEPS) $(PARSEROM)
  112. $(if $(filter $(AUTO_SRCS),$<),$(call src_template,$<,$@,$(subst .,,$(suffix $<)),$(basename $(notdir $<))),@echo 'ERROR: $< is not an AUTO_SRC' ; exit 1)
  113. # Calculate and include the list of Makefile rules files
  114. #
  115. AUTO_DEPS = $(patsubst %,$(BIN)/deps/%.d,$(AUTO_SRCS))
  116. include $(AUTO_DEPS)
  117. autodeps :
  118. @echo $(AUTO_DEPS)
  119. VERYCLEANUP += $(BIN)/deps
  120. # The following variables are created by the Makefile rules files
  121. #
  122. bobjs :
  123. @echo $(BOBJS)
  124. drivers :
  125. @echo $(DRIVERS)
  126. .PHONY : drivers
  127. roms :
  128. @echo $(ROMS)
  129. # Generate the NIC file from the parsed source files. The NIC file is
  130. # only for rom-o-matic.
  131. #
  132. $(BIN)/NIC : $(AUTO_DEPS)
  133. @echo '# This is an automatically generated file, do not edit' > $@
  134. @echo '# It does not affect anything in the build, ' \
  135. 'it is only for rom-o-matic' >> $@
  136. @echo >> $@
  137. @perl -ne 'chomp; print "$$1\n" if /\# NIC\t(.*)$$/' $^ >> $@
  138. CLEANUP += $(BIN)/NIC
  139. # Analyse a target name (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and
  140. # derive the variables:
  141. #
  142. # TGT_ELEMENTS : the elements of the target (e.g. "dfe538 prism2_pci")
  143. # TGT_PREFIX : the prefix type (e.g. "zrom")
  144. # TGT_DRIVERS : the driver for each element (e.g. "rtl8139 prism2_pci")
  145. # TGT_ROM_NAME : the ROM name (e.g. "dfe538")
  146. # TGT_MEDIA : the media type (e.g. "rom")
  147. #
  148. DRIVERS_etherboot = $(DRIVERS)
  149. CARD_DRIVER = $(firstword $(DRIVER_$(1)) $(1))
  150. TGT_ELEMENTS = $(subst --, ,$(firstword $(subst ., ,$(notdir $@))))
  151. TGT_PREFIX = $(word 2,$(subst ., ,$(notdir $@)))
  152. TGT_ROM_NAME = $(firstword $(TGT_ELEMENTS))
  153. TGT_DRIVERS = $(strip $(if $(DRIVERS_$(TGT_ROM_NAME)), \
  154. $(DRIVERS_$(TGT_ROM_NAME)), \
  155. $(foreach TGT_ELEMENT,$(TGT_ELEMENTS), \
  156. $(call CARD_DRIVER,$(TGT_ELEMENT))) ))
  157. TGT_MEDIA = $(subst z,,$(TGT_PREFIX))
  158. # Look up ROM type and IDs for the current target
  159. # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
  160. #
  161. # TGT_ROM_TYPE : PCI/ISA indicator (e.g. "pci")
  162. # TGT_PCI_VENDOR : the PCI vendor ID (e.g. "0x1186")
  163. # TGT_PCI_DEVICE : the PCI device ID (e.g. "0x1300")
  164. #
  165. TGT_ROM_TYPE = $(ROM_TYPE_$(TGT_ROM_NAME))
  166. TGT_PCI_VENDOR = $(PCI_VENDOR_$(TGT_ROM_NAME))
  167. TGT_PCI_DEVICE = $(PCI_DEVICE_$(TGT_ROM_NAME))
  168. # Calculate link-time options for the current target
  169. # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
  170. #
  171. # TGT_LD_DRIVERS : symbols to require in order to drag in the relevant drivers
  172. # (e.g. "obj_rtl8139 obj_prism2_pci")
  173. # TGT_LD_PREFIX : symbols to require in order to drag in the relevant prefix
  174. # (e.g. "obj_zpciprefix")
  175. # TGT_LD_IDS : symbols to define in order to fill in ID structures in the
  176. # ROM header (e.g."pci_vendor_id=0x1186 pci_device_id=0x1300")
  177. #
  178. TGT_LD_DRIVERS = $(subst -,_,$(patsubst %,obj_%,$(TGT_DRIVERS)))
  179. TGT_LD_PREFIX = obj_$(subst rom,$(TGT_ROM_TYPE),$(TGT_PREFIX))prefix
  180. TGT_LD_IDS = $(if $(TGT_PCI_VENDOR),pci_vendor_id=$(TGT_PCI_VENDOR)) \
  181. $(if $(TGT_PCI_DEVICE),pci_device_id=$(TGT_PCI_DEVICE))
  182. # Calculate linker flags based on link-time options for the current
  183. # target type (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the
  184. # variables:
  185. #
  186. # TGT_LD_FLAGS : target-specific flags to pass to linker (e.g.
  187. # "-u obj_zpciprefix -u obj_rtl8139 -u obj_prism2_pci
  188. # --defsym pci_vendor=0x1186 --defsym pci_device=0x1300")
  189. #
  190. TGT_LD_FLAGS = $(foreach SYM,$(TGT_LD_PREFIX) $(TGT_LD_DRIVERS) obj_config,\
  191. -u $(SYM) --defsym check_$(SYM)=$(SYM) ) \
  192. $(patsubst %,--defsym %,$(TGT_LD_IDS))
  193. # Calculate makerom flags for the specific target
  194. # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
  195. #
  196. # TGT_MAKEROM_FLAGS : target-specific flags for makerom (e.g.
  197. # "-p 0x1186,0x1300")
  198. #
  199. TGT_MAKEROM_FLAGS = $(strip $(MAKEROM_FLAGS_$(TGT_ROM_NAME)) \
  200. $(if $(TGT_PCI_VENDOR),$(strip -p $(TGT_PCI_VENDOR),$(TGT_PCI_DEVICE))))
  201. # Calculate list of debugging versions of objects to be included in
  202. # the target.
  203. #
  204. COMMA := ,
  205. DEBUG_LIST = $(subst $(COMMA), ,$(DEBUG))
  206. DEBUG_OBJ_BASE = $(word 1,$(subst :, ,$(1))).dbg$(word 2,$(subst :, ,$(1)))
  207. DEBUG_OBJ = $(BIN)/$(call DEBUG_OBJ_BASE,$(1)).o
  208. DEBUG_ORIG_OBJ = $(BIN)/$(word 1,$(subst :, ,$(1))).o
  209. DEBUG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_OBJ,$(D)))
  210. DEBUG_ORIG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_ORIG_OBJ,$(D)))
  211. BLIB_OBJS = $(DEBUG_OBJS) $(filter-out $(DEBUG_ORIG_OBJS),$(BOBJS))
  212. # Print out all derived information for a given target.
  213. #
  214. $(BIN)/%.info :
  215. @echo 'Elements : $(TGT_ELEMENTS)'
  216. @echo 'Prefix : $(TGT_PREFIX)'
  217. @echo 'Drivers : $(TGT_DRIVERS)'
  218. @echo 'ROM name : $(TGT_ROM_NAME)'
  219. @echo 'Media : $(TGT_MEDIA)'
  220. @echo
  221. @echo 'ROM type : $(TGT_ROM_TYPE)'
  222. @echo 'PCI vendor : $(TGT_PCI_VENDOR)'
  223. @echo 'PCI device : $(TGT_PCI_DEVICE)'
  224. @echo
  225. @echo 'LD driver symbols : $(TGT_LD_DRIVERS)'
  226. @echo 'LD prefix symbols : $(TGT_LD_PREFIX)'
  227. @echo 'LD ID symbols : $(TGT_LD_IDS)'
  228. @echo
  229. @echo 'LD target flags : $(TGT_LD_FLAGS)'
  230. @echo
  231. @echo 'makerom target flags : $(TGT_MAKEROM_FLAGS)'
  232. @echo
  233. @echo 'Debugging objects : $(DEBUG_OBJS)'
  234. @echo 'Replaced objects : $(DEBUG_ORIG_OBJS)'
  235. # List of objects included in the last build of blib. This is needed
  236. # in order to correctly rebuild blib whenever the list of objects
  237. # changes.
  238. #
  239. BLIB_LIST = $(BIN)/.blib.list
  240. ifneq ($(shell cat $(BLIB_LIST)),$(BLIB_OBJS))
  241. $(shell echo "$(BLIB_OBJS)" > $(BLIB_LIST))
  242. endif
  243. $(BLIB_LIST) :
  244. # Library of all objects
  245. #
  246. BLIB = $(BIN)/blib.a
  247. $(BLIB) : $(BLIB_OBJS) $(BLIB_LIST) $(MAKEDEPS)
  248. $(RM) $(BLIB)
  249. $(AR) r $@ $(BLIB_OBJS)
  250. $(RANLIB) $@
  251. blib : $(BLIB)
  252. # Build an intermediate object file from the objects required for the
  253. # specified target.
  254. #
  255. $(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT)
  256. $(LD) $(LDFLAGS) -T $(LDSCRIPT) $(TGT_LD_FLAGS) $(BLIB) -o $@ \
  257. -Map $(BIN)/$*.tmp.map
  258. $(OBJDUMP) -ht $@ | $(SORTOBJDUMP) >> $(BIN)/$*.tmp.map
  259. # Show a linker map for the specified target
  260. #
  261. $(BIN)/%.map : $(BIN)/%.tmp
  262. @less $(BIN)/$*.tmp.map
  263. # Build bochs symbol table
  264. $(BIN)/%.bxs : $(BIN)/%.tmp
  265. $(NM) $< | cut -d" " -f1,3 > $@
  266. # Rules for each media format. These are generated and placed in an
  267. # external Makefile fragment. We could do this via $(eval ...), but
  268. # that would require make >= 3.80.
  269. #
  270. # Note that there's an alternative way to generate most .rom images:
  271. # they can be copied from their 'master' ROM image using cp and
  272. # reprocessed with makerom to add the PCI IDs and ident string. The
  273. # relevant rule would look something like:
  274. #
  275. # $(BIN)/dfe538%rom : $(BIN)/rtl8139%rom
  276. # cat $< $@
  277. # $(FINALISE_rom)
  278. #
  279. # You can derive the ROM/driver relationships using the variables
  280. # DRIVER_<rom> and/or ROMS_<driver>.
  281. #
  282. # We don't currently do this, because (a) it would require generating
  283. # yet more Makefile fragments (since you need a rule for each ROM in
  284. # ROMS), and (b) the linker is so fast that it probably wouldn't make
  285. # much difference to the overall build time.
  286. media :
  287. @echo $(MEDIA)
  288. AUTO_MEDIA = $(filter-out $(NON_AUTO_MEDIA),$(MEDIA))
  289. automedia :
  290. @echo $(AUTO_MEDIA)
  291. # media_template : create Makefile rules for specified media
  292. #
  293. # $(1) is the media name (e.g. "rom")
  294. # $(2) is the full path to the .d file (e.g. "bin/deps/rom.media.d")
  295. #
  296. define media_template
  297. @echo "Generating Makefile rules for $(1) media"
  298. @$(MKDIR) -p $(dir $(2))
  299. @$(RM) $(2)
  300. @$(TOUCH) $(2)
  301. @echo -e '$$(BIN)/%$(1) : $$(BIN)/%$(1).tmp' \
  302. '\n\t$$(OBJCOPY) -O binary $$< $$@' \
  303. '\n\t$$(FINALISE_$(1))' \
  304. > $(2)
  305. endef
  306. # Rule to generate the Makefile rules to be included
  307. #
  308. $(BIN)/deps/%.media.d : $(MAKEDEPS)
  309. $(if $(filter $(AUTO_MEDIA),$*), \
  310. $(call media_template,$*,$@), \
  311. @echo 'ERROR: $* is not an AUTO_MEDIA' ; exit 1)
  312. # Calculate and include the list of Makefile rules files
  313. #
  314. MEDIA_DEPS = $(patsubst %,$(BIN)/deps/%.media.d,$(AUTO_MEDIA))
  315. mediadeps :
  316. @echo $(MEDIA_DEPS)
  317. include $(MEDIA_DEPS)
  318. # The "allXXXs" targets for each suffix
  319. #
  320. allroms allzroms : all%s : $(foreach ROM,$(ROMS),$(BIN)/$(ROM).%)
  321. all%s : $(foreach DRIVER,$(DRIVERS),$(BIN)/$(DRIVER).%)
  322. # The compressor utility
  323. #
  324. $(NRV2B) : util/nrv2b.c $(MAKEDEPS)
  325. $(HOST_CC) -O2 -DENCODE -DDECODE -DMAIN -DVERBOSE -DNDEBUG \
  326. -DBITSIZE=32 -DENDIAN=0 -o $@ $<
  327. CLEANUP += $(NRV2B)
  328. # Auto-incrementing build serial number. Append "bs" to your list of
  329. # build targets to get a serial number printed at the end of the
  330. # build. Enable -DBUILD_SERIAL in order to see it when the code runs.
  331. #
  332. BUILDSERIAL_H = config/.buildserial.h
  333. BUILDSERIAL_NOW = config/.buildserial.now
  334. BUILDSERIAL_NEXT = config/.buildserial.next
  335. $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) :
  336. echo 1 > $@
  337. $(BUILDSERIAL_H) : $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT)
  338. echo '#define BUILD_SERIAL_NUM $(shell cat $<)' > $@
  339. ifeq ($(filter bs,$(MAKECMDGOALS)),bs)
  340. $(shell diff -q $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) > /dev/null || \
  341. cp -f $(BUILDSERIAL_NEXT) $(BUILDSERIAL_NOW))
  342. endif
  343. bs : $(BUILDSERIAL_NOW)
  344. @echo $$(( $(shell cat $<) + 1 )) > $(BUILDSERIAL_NEXT)
  345. @echo "Build serial number is $(shell cat $<)"
  346. # List of available architectures
  347. #
  348. ARCHS = $(filter-out CVS,$(patsubst arch/%,%,$(wildcard arch/*)))
  349. archs :
  350. @echo $(ARCHS)
  351. OTHER_ARCHS = $(filter-out $(ARCH),$(ARCHS))
  352. otherarchs :
  353. @echo $(OTHER_ARCHS)
  354. # Build the TAGS file for emacs
  355. #
  356. TAGS : TAGS.$(ARCH)
  357. TAGS.$(ARCH) :
  358. ctags -e -R -f $@ --exclude=bin \
  359. $(foreach ARCH,$(OTHER_ARCHS),--exclude=arch/$(ARCH))
  360. CLEANUP += TAGS*
  361. # Symbol table checks
  362. #
  363. SYMTAB = $(BIN)/symtab
  364. $(SYMTAB) : $(BLIB)
  365. $(NM) -o -S $< > $@
  366. symcheck : $(SYMTAB)
  367. $(SYMCHECK) $<
  368. # Force rebuild for any given target
  369. #
  370. $(BIN)/%.rebuild :
  371. rm -f $(BIN)/$*
  372. $(MAKE) $(MAKEFLAGS) $(BIN)/$*
  373. # Documentation
  374. #
  375. $(BIN)/doxygen.cfg : doxygen.cfg $(MAKEDEPS)
  376. $(PERL) -pe 's{\@SRCDIRS\@}{$(SRCDIRS)}; ' \
  377. -e 's{\@BIN\@}{$(BIN)}; ' \
  378. -e 's{\@ARCH\@}{$(ARCH)}; ' \
  379. $< > $@
  380. $(BIN)/doc : $(BIN)/doxygen.cfg
  381. $(DOXYGEN) $<
  382. .PHONY : $(BIN)/doc
  383. VERYCLEANUP += $(BIN)/doc
  384. doc : $(BIN)/doc
  385. docview :
  386. @[ -f $(BIN)/doc/html/index.html ] || $(MAKE) $(BIN)/doc
  387. @if [ -n "$$BROWSER" ] ; then \
  388. ( $$BROWSER $(BIN)/doc/html/index.html & ) ; \
  389. else \
  390. echo "Documentation index in $(BIN)/doc/html/index.html" ; \
  391. fi
  392. # Clean-up
  393. #
  394. clean :
  395. $(RM) $(CLEANUP)
  396. veryclean : clean
  397. $(RM) -r $(VERYCLEANUP)