Makefile 59 KB

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  1. # SPDX-License-Identifier: GPL-2.0+
  2. VERSION = 2018
  3. PATCHLEVEL = 05
  4. SUBLEVEL =
  5. EXTRAVERSION =
  6. NAME =
  7. # *DOCUMENTATION*
  8. # To see a list of typical targets execute "make help"
  9. # More info can be located in ./README
  10. # Comments in this file are targeted only to the developer, do not
  11. # expect to learn how to build the kernel reading this file.
  12. # o Do not use make's built-in rules and variables
  13. # (this increases performance and avoids hard-to-debug behaviour);
  14. # o Look for make include files relative to root of kernel src
  15. MAKEFLAGS += -rR --include-dir=$(CURDIR)
  16. # Avoid funny character set dependencies
  17. unexport LC_ALL
  18. LC_COLLATE=C
  19. LC_NUMERIC=C
  20. export LC_COLLATE LC_NUMERIC
  21. # Avoid interference with shell env settings
  22. unexport GREP_OPTIONS
  23. # We are using a recursive build, so we need to do a little thinking
  24. # to get the ordering right.
  25. #
  26. # Most importantly: sub-Makefiles should only ever modify files in
  27. # their own directory. If in some directory we have a dependency on
  28. # a file in another dir (which doesn't happen often, but it's often
  29. # unavoidable when linking the built-in.o targets which finally
  30. # turn into vmlinux), we will call a sub make in that other dir, and
  31. # after that we are sure that everything which is in that other dir
  32. # is now up to date.
  33. #
  34. # The only cases where we need to modify files which have global
  35. # effects are thus separated out and done before the recursive
  36. # descending is started. They are now explicitly listed as the
  37. # prepare rule.
  38. # Beautify output
  39. # ---------------------------------------------------------------------------
  40. #
  41. # Normally, we echo the whole command before executing it. By making
  42. # that echo $($(quiet)$(cmd)), we now have the possibility to set
  43. # $(quiet) to choose other forms of output instead, e.g.
  44. #
  45. # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  46. # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
  47. #
  48. # If $(quiet) is empty, the whole command will be printed.
  49. # If it is set to "quiet_", only the short version will be printed.
  50. # If it is set to "silent_", nothing will be printed at all, since
  51. # the variable $(silent_cmd_cc_o_c) doesn't exist.
  52. #
  53. # A simple variant is to prefix commands with $(Q) - that's useful
  54. # for commands that shall be hidden in non-verbose mode.
  55. #
  56. # $(Q)ln $@ :<
  57. #
  58. # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  59. # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  60. #
  61. # To put more focus on warnings, be less verbose as default
  62. # Use 'make V=1' to see the full commands
  63. ifeq ("$(origin V)", "command line")
  64. KBUILD_VERBOSE = $(V)
  65. endif
  66. ifndef KBUILD_VERBOSE
  67. KBUILD_VERBOSE = 0
  68. endif
  69. ifeq ($(KBUILD_VERBOSE),1)
  70. quiet =
  71. Q =
  72. else
  73. quiet=quiet_
  74. Q = @
  75. endif
  76. # If the user is running make -s (silent mode), suppress echoing of
  77. # commands
  78. ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
  79. ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  80. quiet=silent_
  81. endif
  82. else # make-3.8x
  83. ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  84. quiet=silent_
  85. endif
  86. endif
  87. export quiet Q KBUILD_VERBOSE
  88. # kbuild supports saving output files in a separate directory.
  89. # To locate output files in a separate directory two syntaxes are supported.
  90. # In both cases the working directory must be the root of the kernel src.
  91. # 1) O=
  92. # Use "make O=dir/to/store/output/files/"
  93. #
  94. # 2) Set KBUILD_OUTPUT
  95. # Set the environment variable KBUILD_OUTPUT to point to the directory
  96. # where the output files shall be placed.
  97. # export KBUILD_OUTPUT=dir/to/store/output/files/
  98. # make
  99. #
  100. # The O= assignment takes precedence over the KBUILD_OUTPUT environment
  101. # variable.
  102. # KBUILD_SRC is set on invocation of make in OBJ directory
  103. # KBUILD_SRC is not intended to be used by the regular user (for now)
  104. ifeq ($(KBUILD_SRC),)
  105. # OK, Make called in directory where kernel src resides
  106. # Do we want to locate output files in a separate directory?
  107. ifeq ("$(origin O)", "command line")
  108. KBUILD_OUTPUT := $(O)
  109. endif
  110. # That's our default target when none is given on the command line
  111. PHONY := _all
  112. _all:
  113. # Cancel implicit rules on top Makefile
  114. $(CURDIR)/Makefile Makefile: ;
  115. ifneq ($(KBUILD_OUTPUT),)
  116. # Invoke a second make in the output directory, passing relevant variables
  117. # check that the output directory actually exists
  118. saved-output := $(KBUILD_OUTPUT)
  119. KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
  120. && /bin/pwd)
  121. $(if $(KBUILD_OUTPUT),, \
  122. $(error failed to create output directory "$(saved-output)"))
  123. PHONY += $(MAKECMDGOALS) sub-make
  124. $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
  125. @:
  126. sub-make: FORCE
  127. $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
  128. -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
  129. # Leave processing to above invocation of make
  130. skip-makefile := 1
  131. endif # ifneq ($(KBUILD_OUTPUT),)
  132. endif # ifeq ($(KBUILD_SRC),)
  133. # We process the rest of the Makefile if this is the final invocation of make
  134. ifeq ($(skip-makefile),)
  135. # Do not print "Entering directory ...",
  136. # but we want to display it when entering to the output directory
  137. # so that IDEs/editors are able to understand relative filenames.
  138. MAKEFLAGS += --no-print-directory
  139. # Call a source code checker (by default, "sparse") as part of the
  140. # C compilation.
  141. #
  142. # Use 'make C=1' to enable checking of only re-compiled files.
  143. # Use 'make C=2' to enable checking of *all* source files, regardless
  144. # of whether they are re-compiled or not.
  145. #
  146. # See the file "Documentation/sparse.txt" for more details, including
  147. # where to get the "sparse" utility.
  148. ifeq ("$(origin C)", "command line")
  149. KBUILD_CHECKSRC = $(C)
  150. endif
  151. ifndef KBUILD_CHECKSRC
  152. KBUILD_CHECKSRC = 0
  153. endif
  154. # Use make M=dir to specify directory of external module to build
  155. # Old syntax make ... SUBDIRS=$PWD is still supported
  156. # Setting the environment variable KBUILD_EXTMOD take precedence
  157. ifdef SUBDIRS
  158. KBUILD_EXTMOD ?= $(SUBDIRS)
  159. endif
  160. ifeq ("$(origin M)", "command line")
  161. KBUILD_EXTMOD := $(M)
  162. endif
  163. # If building an external module we do not care about the all: rule
  164. # but instead _all depend on modules
  165. PHONY += all
  166. ifeq ($(KBUILD_EXTMOD),)
  167. _all: all
  168. else
  169. _all: modules
  170. endif
  171. ifeq ($(KBUILD_SRC),)
  172. # building in the source tree
  173. srctree := .
  174. else
  175. ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
  176. # building in a subdirectory of the source tree
  177. srctree := ..
  178. else
  179. srctree := $(KBUILD_SRC)
  180. endif
  181. endif
  182. objtree := .
  183. src := $(srctree)
  184. obj := $(objtree)
  185. VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
  186. export srctree objtree VPATH
  187. # Make sure CDPATH settings don't interfere
  188. unexport CDPATH
  189. #########################################################################
  190. HOSTARCH := $(shell uname -m | \
  191. sed -e s/i.86/x86/ \
  192. -e s/sun4u/sparc64/ \
  193. -e s/arm.*/arm/ \
  194. -e s/sa110/arm/ \
  195. -e s/ppc64/powerpc/ \
  196. -e s/ppc/powerpc/ \
  197. -e s/macppc/powerpc/\
  198. -e s/sh.*/sh/)
  199. HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
  200. sed -e 's/\(cygwin\).*/cygwin/')
  201. export HOSTARCH HOSTOS
  202. #########################################################################
  203. # set default to nothing for native builds
  204. ifeq ($(HOSTARCH),$(ARCH))
  205. CROSS_COMPILE ?=
  206. endif
  207. KCONFIG_CONFIG ?= .config
  208. export KCONFIG_CONFIG
  209. # SHELL used by kbuild
  210. CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  211. else if [ -x /bin/bash ]; then echo /bin/bash; \
  212. else echo sh; fi ; fi)
  213. HOSTCC = cc
  214. HOSTCXX = c++
  215. HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
  216. $(if $(CONFIG_TOOLS_DEBUG),-g)
  217. HOSTCXXFLAGS = -O2
  218. # With the move to GCC 6, we have implicitly upgraded our language
  219. # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
  220. # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
  221. # have older compilers as their default, so we make it explicit for
  222. # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
  223. ifeq ($(HOSTOS),linux)
  224. HOSTCFLAGS += --std=gnu11
  225. endif
  226. ifeq ($(HOSTOS),cygwin)
  227. HOSTCFLAGS += -ansi
  228. endif
  229. # Mac OS X / Darwin's C preprocessor is Apple specific. It
  230. # generates numerous errors and warnings. We want to bypass it
  231. # and use GNU C's cpp. To do this we pass the -traditional-cpp
  232. # option to the compiler. Note that the -traditional-cpp flag
  233. # DOES NOT have the same semantics as GNU C's flag, all it does
  234. # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
  235. #
  236. # Apple's linker is similar, thanks to the new 2 stage linking
  237. # multiple symbol definitions are treated as errors, hence the
  238. # -multiply_defined suppress option to turn off this error.
  239. #
  240. ifeq ($(HOSTOS),darwin)
  241. # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
  242. DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
  243. DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
  244. os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
  245. $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
  246. # Snow Leopards build environment has no longer restrictions as described above
  247. HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
  248. HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
  249. HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
  250. # since Lion (10.7) ASLR is on by default, but we use linker generated lists
  251. # in some host tools which is a problem then ... so disable ASLR for these
  252. # tools
  253. HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
  254. endif
  255. # Decide whether to build built-in, modular, or both.
  256. # Normally, just do built-in.
  257. KBUILD_MODULES :=
  258. KBUILD_BUILTIN := 1
  259. # If we have only "make modules", don't compile built-in objects.
  260. # When we're building modules with modversions, we need to consider
  261. # the built-in objects during the descend as well, in order to
  262. # make sure the checksums are up to date before we record them.
  263. ifeq ($(MAKECMDGOALS),modules)
  264. KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
  265. endif
  266. # If we have "make <whatever> modules", compile modules
  267. # in addition to whatever we do anyway.
  268. # Just "make" or "make all" shall build modules as well
  269. # U-Boot does not need modules
  270. #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
  271. # KBUILD_MODULES := 1
  272. #endif
  273. #ifeq ($(MAKECMDGOALS),)
  274. # KBUILD_MODULES := 1
  275. #endif
  276. export KBUILD_MODULES KBUILD_BUILTIN
  277. export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
  278. # We need some generic definitions (do not try to remake the file).
  279. scripts/Kbuild.include: ;
  280. include scripts/Kbuild.include
  281. # Make variables (CC, etc...)
  282. AS = $(CROSS_COMPILE)as
  283. # Always use GNU ld
  284. ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
  285. LD = $(CROSS_COMPILE)ld.bfd
  286. else
  287. LD = $(CROSS_COMPILE)ld
  288. endif
  289. CC = $(CROSS_COMPILE)gcc
  290. CPP = $(CC) -E
  291. AR = $(CROSS_COMPILE)ar
  292. NM = $(CROSS_COMPILE)nm
  293. LDR = $(CROSS_COMPILE)ldr
  294. STRIP = $(CROSS_COMPILE)strip
  295. OBJCOPY = $(CROSS_COMPILE)objcopy
  296. OBJDUMP = $(CROSS_COMPILE)objdump
  297. LEX = flex
  298. YACC = bison
  299. AWK = awk
  300. PERL = perl
  301. PYTHON ?= python
  302. PYTHON2 = python2
  303. PYTHON3 = python3
  304. DTC ?= $(objtree)/scripts/dtc/dtc
  305. CHECK = sparse
  306. CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
  307. -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
  308. KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
  309. KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
  310. -Wno-format-security \
  311. -fno-builtin -ffreestanding
  312. KBUILD_CFLAGS += -fshort-wchar
  313. KBUILD_AFLAGS := -D__ASSEMBLY__
  314. # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
  315. UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
  316. UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
  317. export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
  318. export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
  319. export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
  320. export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
  321. export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
  322. export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
  323. export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
  324. export KBUILD_CFLAGS KBUILD_AFLAGS
  325. # When compiling out-of-tree modules, put MODVERDIR in the module
  326. # tree rather than in the kernel tree. The kernel tree might
  327. # even be read-only.
  328. export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
  329. # Files to ignore in find ... statements
  330. export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
  331. -name CVS -o -name .pc -o -name .hg -o -name .git \) \
  332. -prune -o
  333. export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
  334. --exclude CVS --exclude .pc --exclude .hg --exclude .git
  335. # ===========================================================================
  336. # Rules shared between *config targets and build targets
  337. # Basic helpers built in scripts/
  338. PHONY += scripts_basic
  339. scripts_basic:
  340. $(Q)$(MAKE) $(build)=scripts/basic
  341. $(Q)rm -f .tmp_quiet_recordmcount
  342. # To avoid any implicit rule to kick in, define an empty command.
  343. scripts/basic/%: scripts_basic ;
  344. PHONY += outputmakefile
  345. # outputmakefile generates a Makefile in the output directory, if using a
  346. # separate output directory. This allows convenient use of make in the
  347. # output directory.
  348. outputmakefile:
  349. ifneq ($(KBUILD_SRC),)
  350. $(Q)ln -fsn $(srctree) source
  351. $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
  352. $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
  353. endif
  354. # To make sure we do not include .config for any of the *config targets
  355. # catch them early, and hand them over to scripts/kconfig/Makefile
  356. # It is allowed to specify more targets when calling make, including
  357. # mixing *config targets and build targets.
  358. # For example 'make oldconfig all'.
  359. # Detect when mixed targets is specified, and make a second invocation
  360. # of make so .config is not included in this case either (for *config).
  361. version_h := include/generated/version_autogenerated.h
  362. timestamp_h := include/generated/timestamp_autogenerated.h
  363. defaultenv_h := include/generated/defaultenv_autogenerated.h
  364. no-dot-config-targets := clean clobber mrproper distclean \
  365. help %docs check% coccicheck \
  366. ubootversion backup tests
  367. config-targets := 0
  368. mixed-targets := 0
  369. dot-config := 1
  370. ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
  371. ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
  372. dot-config := 0
  373. endif
  374. endif
  375. ifeq ($(KBUILD_EXTMOD),)
  376. ifneq ($(filter config %config,$(MAKECMDGOALS)),)
  377. config-targets := 1
  378. ifneq ($(words $(MAKECMDGOALS)),1)
  379. mixed-targets := 1
  380. endif
  381. endif
  382. endif
  383. ifeq ($(mixed-targets),1)
  384. # ===========================================================================
  385. # We're called with mixed targets (*config and build targets).
  386. # Handle them one by one.
  387. PHONY += $(MAKECMDGOALS) __build_one_by_one
  388. $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
  389. @:
  390. __build_one_by_one:
  391. $(Q)set -e; \
  392. for i in $(MAKECMDGOALS); do \
  393. $(MAKE) -f $(srctree)/Makefile $$i; \
  394. done
  395. else
  396. ifeq ($(config-targets),1)
  397. # ===========================================================================
  398. # *config targets only - make sure prerequisites are updated, and descend
  399. # in scripts/kconfig to make the *config target
  400. KBUILD_DEFCONFIG := sandbox_defconfig
  401. export KBUILD_DEFCONFIG KBUILD_KCONFIG
  402. config: scripts_basic outputmakefile FORCE
  403. $(Q)$(MAKE) $(build)=scripts/kconfig $@
  404. %config: scripts_basic outputmakefile FORCE
  405. $(Q)$(MAKE) $(build)=scripts/kconfig $@
  406. else
  407. # ===========================================================================
  408. # Build targets only - this includes vmlinux, arch specific targets, clean
  409. # targets and others. In general all targets except *config targets.
  410. # Additional helpers built in scripts/
  411. # Carefully list dependencies so we do not try to build scripts twice
  412. # in parallel
  413. PHONY += scripts
  414. scripts: scripts_basic include/config/auto.conf
  415. $(Q)$(MAKE) $(build)=$(@)
  416. ifeq ($(dot-config),1)
  417. # Read in config
  418. -include include/config/auto.conf
  419. # Read in dependencies to all Kconfig* files, make sure to run
  420. # oldconfig if changes are detected.
  421. -include include/config/auto.conf.cmd
  422. # To avoid any implicit rule to kick in, define an empty command
  423. $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
  424. # If .config is newer than include/config/auto.conf, someone tinkered
  425. # with it and forgot to run make oldconfig.
  426. # if auto.conf.cmd is missing then we are probably in a cleaned tree so
  427. # we execute the config step to be sure to catch updated Kconfig files
  428. include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
  429. $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
  430. @# If the following part fails, include/config/auto.conf should be
  431. @# deleted so "make silentoldconfig" will be re-run on the next build.
  432. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
  433. { rm -f include/config/auto.conf; false; }
  434. @# include/config.h has been updated after "make silentoldconfig".
  435. @# We need to touch include/config/auto.conf so it gets newer
  436. @# than include/config.h.
  437. @# Otherwise, 'make silentoldconfig' would be invoked twice.
  438. $(Q)touch include/config/auto.conf
  439. u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
  440. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
  441. -include include/autoconf.mk
  442. -include include/autoconf.mk.dep
  443. # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
  444. # is up-to-date. When we switch to a different board configuration, old CONFIG
  445. # macros are still remaining in include/config/auto.conf. Without the following
  446. # gimmick, wrong config.mk would be included leading nasty warnings/errors.
  447. ifneq ($(wildcard $(KCONFIG_CONFIG)),)
  448. ifneq ($(wildcard include/config/auto.conf),)
  449. autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
  450. include/config/auto.conf)
  451. ifeq ($(autoconf_is_old),)
  452. include config.mk
  453. include arch/$(ARCH)/Makefile
  454. endif
  455. endif
  456. endif
  457. # These are set by the arch-specific config.mk. Make sure they are exported
  458. # so they can be used when building an EFI application.
  459. export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
  460. export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
  461. export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
  462. export CFLAGS_EFI # Compiler flags to add when building EFI app
  463. export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
  464. export EFI_TARGET # binutils target if EFI is natively supported
  465. # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
  466. # that (or fail if absent). Otherwise, search for a linker script in a
  467. # standard location.
  468. ifndef LDSCRIPT
  469. #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
  470. ifdef CONFIG_SYS_LDSCRIPT
  471. # need to strip off double quotes
  472. LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
  473. endif
  474. endif
  475. # If there is no specified link script, we look in a number of places for it
  476. ifndef LDSCRIPT
  477. ifeq ($(wildcard $(LDSCRIPT)),)
  478. LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
  479. endif
  480. ifeq ($(wildcard $(LDSCRIPT)),)
  481. LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
  482. endif
  483. ifeq ($(wildcard $(LDSCRIPT)),)
  484. LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
  485. endif
  486. endif
  487. else
  488. # Dummy target needed, because used as prerequisite
  489. include/config/auto.conf: ;
  490. endif # $(dot-config)
  491. #
  492. # Xtensa linker script cannot be preprocessed with -ansi because of
  493. # preprocessor operations on strings that don't make C identifiers.
  494. #
  495. ifeq ($(CONFIG_XTENSA),)
  496. LDPPFLAGS += -ansi
  497. endif
  498. ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
  499. KBUILD_CFLAGS += -Os
  500. else
  501. KBUILD_CFLAGS += -O2
  502. endif
  503. KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
  504. KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
  505. # change __FILE__ to the relative path from the srctree
  506. KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
  507. KBUILD_CFLAGS += -g
  508. # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
  509. # option to the assembler.
  510. KBUILD_AFLAGS += -g
  511. # Report stack usage if supported
  512. # ARC tools based on GCC 7.1 has an issue with stack usage
  513. # with naked functions, see commit message for more details
  514. ifndef CONFIG_ARC
  515. ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
  516. KBUILD_CFLAGS += -fstack-usage
  517. endif
  518. endif
  519. KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
  520. ifeq ($(cc-name),clang)
  521. KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
  522. KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
  523. KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
  524. KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
  525. KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
  526. endif
  527. # turn jbsr into jsr for m68k
  528. ifeq ($(ARCH),m68k)
  529. ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
  530. KBUILD_AFLAGS += -Wa,-gstabs,-S
  531. endif
  532. endif
  533. # Prohibit date/time macros, which would make the build non-deterministic
  534. KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
  535. include scripts/Makefile.extrawarn
  536. # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
  537. KBUILD_CPPFLAGS += $(KCPPFLAGS)
  538. KBUILD_AFLAGS += $(KAFLAGS)
  539. KBUILD_CFLAGS += $(KCFLAGS)
  540. # Use UBOOTINCLUDE when you must reference the include/ directory.
  541. # Needed to be compatible with the O= option
  542. UBOOTINCLUDE := \
  543. -Iinclude \
  544. $(if $(KBUILD_SRC), -I$(srctree)/include) \
  545. $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
  546. $(if $(CONFIG_HAS_THUMB2),, \
  547. -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
  548. -I$(srctree)/arch/$(ARCH)/include \
  549. -include $(srctree)/include/linux/kconfig.h
  550. NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
  551. CHECKFLAGS += $(NOSTDINC_FLAGS)
  552. # FIX ME
  553. cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  554. $(NOSTDINC_FLAGS)
  555. c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  556. #########################################################################
  557. # U-Boot objects....order is important (i.e. start must be first)
  558. HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  559. libs-y += lib/
  560. libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  561. libs-$(CONFIG_OF_EMBED) += dts/
  562. libs-y += fs/
  563. libs-y += net/
  564. libs-y += disk/
  565. libs-y += drivers/
  566. libs-y += drivers/dma/
  567. libs-y += drivers/gpio/
  568. libs-y += drivers/i2c/
  569. libs-y += drivers/mtd/
  570. libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
  571. libs-y += drivers/mtd/onenand/
  572. libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
  573. libs-y += drivers/mtd/spi/
  574. libs-y += drivers/net/
  575. libs-y += drivers/net/phy/
  576. libs-y += drivers/pci/
  577. libs-y += drivers/power/ \
  578. drivers/power/domain/ \
  579. drivers/power/fuel_gauge/ \
  580. drivers/power/mfd/ \
  581. drivers/power/pmic/ \
  582. drivers/power/battery/ \
  583. drivers/power/regulator/
  584. libs-y += drivers/spi/
  585. libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
  586. libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
  587. libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
  588. libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
  589. libs-y += drivers/serial/
  590. libs-y += drivers/usb/dwc3/
  591. libs-y += drivers/usb/common/
  592. libs-y += drivers/usb/emul/
  593. libs-y += drivers/usb/eth/
  594. libs-y += drivers/usb/gadget/
  595. libs-y += drivers/usb/gadget/udc/
  596. libs-y += drivers/usb/host/
  597. libs-y += drivers/usb/musb/
  598. libs-y += drivers/usb/musb-new/
  599. libs-y += drivers/usb/phy/
  600. libs-y += drivers/usb/ulpi/
  601. libs-y += cmd/
  602. libs-y += common/
  603. libs-y += env/
  604. libs-$(CONFIG_API) += api/
  605. libs-$(CONFIG_HAS_POST) += post/
  606. libs-y += test/
  607. libs-y += test/dm/
  608. libs-$(CONFIG_UT_ENV) += test/env/
  609. libs-$(CONFIG_UT_OVERLAY) += test/overlay/
  610. libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  611. libs-y := $(sort $(libs-y))
  612. u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
  613. u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
  614. libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  615. u-boot-init := $(head-y)
  616. u-boot-main := $(libs-y)
  617. # Add GCC lib
  618. ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  619. PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  620. else
  621. PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
  622. endif
  623. PLATFORM_LIBS += $(PLATFORM_LIBGCC)
  624. ifdef CONFIG_CC_COVERAGE
  625. KBUILD_CFLAGS += --coverage
  626. PLATFORM_LIBGCC += -lgcov
  627. endif
  628. export PLATFORM_LIBS
  629. export PLATFORM_LIBGCC
  630. # Special flags for CPP when processing the linker script.
  631. # Pass the version down so we can handle backwards compatibility
  632. # on the fly.
  633. LDPPFLAGS += \
  634. -include $(srctree)/include/u-boot/u-boot.lds.h \
  635. -DCPUDIR=$(CPUDIR) \
  636. $(shell $(LD) --version | \
  637. sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
  638. #########################################################################
  639. #########################################################################
  640. ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
  641. BOARD_SIZE_CHECK = \
  642. @actual=`wc -c $@ | awk '{print $$1}'`; \
  643. limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
  644. if test $$actual -gt $$limit; then \
  645. echo "$@ exceeds file size limit:" >&2 ; \
  646. echo " limit: $$limit bytes" >&2 ; \
  647. echo " actual: $$actual bytes" >&2 ; \
  648. echo " excess: $$((actual - limit)) bytes" >&2; \
  649. exit 1; \
  650. fi
  651. else
  652. BOARD_SIZE_CHECK =
  653. endif
  654. # Statically apply RELA-style relocations (currently arm64 only)
  655. # This is useful for arm64 where static relocation needs to be performed on
  656. # the raw binary, but certain simulators only accept an ELF file (but don't
  657. # do the relocation).
  658. ifneq ($(CONFIG_STATIC_RELA),)
  659. # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
  660. DO_STATIC_RELA = \
  661. start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
  662. end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
  663. tools/relocate-rela $(2) $(3) $$start $$end
  664. else
  665. DO_STATIC_RELA =
  666. endif
  667. # Always append ALL so that arch config.mk's can add custom ones
  668. ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
  669. ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
  670. ifeq ($(CONFIG_SPL_FSL_PBL),y)
  671. ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
  672. else
  673. ifneq ($(CONFIG_SECURE_BOOT), y)
  674. # For Secure Boot The Image needs to be signed and Header must also
  675. # be included. So The image has to be built explicitly
  676. ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
  677. endif
  678. endif
  679. ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
  680. ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
  681. ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
  682. else
  683. ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
  684. ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
  685. else
  686. ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
  687. endif
  688. endif
  689. ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
  690. ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
  691. ifeq ($(CONFIG_SPL_FRAMEWORK),y)
  692. ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
  693. endif
  694. ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
  695. ifneq ($(CONFIG_SPL_TARGET),)
  696. ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
  697. endif
  698. ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
  699. ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
  700. ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
  701. ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
  702. ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
  703. endif
  704. # Build a combined spl + u-boot image for sunxi
  705. ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
  706. ALL-y += u-boot-sunxi-with-spl.bin
  707. endif
  708. # enable combined SPL/u-boot/dtb rules for tegra
  709. ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
  710. ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
  711. ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
  712. endif
  713. # Add optional build target if defined in board/cpu/soc headers
  714. ifneq ($(CONFIG_BUILD_TARGET),)
  715. ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
  716. endif
  717. ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
  718. ALL-y += init_sp_bss_offset_check
  719. endif
  720. LDFLAGS_u-boot += $(LDFLAGS_FINAL)
  721. # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
  722. LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
  723. ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
  724. LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
  725. endif
  726. # Normally we fill empty space with 0xff
  727. quiet_cmd_objcopy = OBJCOPY $@
  728. cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
  729. $(OBJCOPYFLAGS_$(@F)) $< $@
  730. # Provide a version which does not do this, for use by EFI
  731. quiet_cmd_zobjcopy = OBJCOPY $@
  732. cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
  733. quiet_cmd_efipayload = OBJCOPY $@
  734. cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
  735. MKIMAGEOUTPUT ?= /dev/null
  736. quiet_cmd_mkimage = MKIMAGE $@
  737. cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
  738. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  739. quiet_cmd_mkfitimage = MKIMAGE $@
  740. cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
  741. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  742. quiet_cmd_cat = CAT $@
  743. cmd_cat = cat $(filter-out $(PHONY), $^) > $@
  744. append = cat $(filter-out $< $(PHONY), $^) >> $@
  745. quiet_cmd_pad_cat = CAT $@
  746. cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
  747. cfg: u-boot.cfg
  748. quiet_cmd_cfgcheck = CFGCHK $2
  749. cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
  750. $(srctree)/scripts/config_whitelist.txt $(srctree)
  751. all: $(ALL-y) cfg
  752. ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
  753. @echo "===================== WARNING ======================"
  754. @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
  755. @echo "(possibly in a subsequent patch in your series)"
  756. @echo "before sending patches to the mailing list."
  757. @echo "===================================================="
  758. endif
  759. @# Check that this build does not use CONFIG options that we do not
  760. @# know about unless they are in Kconfig. All the existing CONFIG
  761. @# options are whitelisted, so new ones should not be added.
  762. $(call cmd,cfgcheck,u-boot.cfg)
  763. PHONY += dtbs
  764. dtbs: dts/dt.dtb
  765. @:
  766. dts/dt.dtb: u-boot
  767. $(Q)$(MAKE) $(build)=dts dtbs
  768. quiet_cmd_copy = COPY $@
  769. cmd_copy = cp $< $@
  770. ifeq ($(CONFIG_MULTI_DTB_FIT),y)
  771. fit-dtb.blob: dts/dt.dtb FORCE
  772. $(call if_changed,mkimage)
  773. MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
  774. -a 0 -e 0 -E \
  775. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
  776. u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
  777. $(call if_changed,cat)
  778. u-boot.bin: u-boot-fit-dtb.bin FORCE
  779. $(call if_changed,copy)
  780. else ifeq ($(CONFIG_OF_SEPARATE),y)
  781. u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
  782. $(call if_changed,cat)
  783. u-boot.bin: u-boot-dtb.bin FORCE
  784. $(call if_changed,copy)
  785. else
  786. u-boot.bin: u-boot-nodtb.bin FORCE
  787. $(call if_changed,copy)
  788. endif
  789. %.imx: %.bin
  790. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  791. %.vyb: %.imx
  792. $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
  793. quiet_cmd_copy = COPY $@
  794. cmd_copy = cp $< $@
  795. u-boot.dtb: dts/dt.dtb
  796. $(call cmd,copy)
  797. OBJCOPYFLAGS_u-boot.hex := -O ihex
  798. OBJCOPYFLAGS_u-boot.srec := -O srec
  799. u-boot.hex u-boot.srec: u-boot FORCE
  800. $(call if_changed,objcopy)
  801. OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
  802. u-boot-elf.srec: u-boot.elf FORCE
  803. $(call if_changed,objcopy)
  804. OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
  805. spl/u-boot-spl.srec: spl/u-boot-spl FORCE
  806. $(call if_changed,objcopy)
  807. OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
  808. $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
  809. binary_size_check: u-boot-nodtb.bin FORCE
  810. @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
  811. map_size=$(shell cat u-boot.map | \
  812. awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
  813. | sed 's/0X//g' \
  814. | bc); \
  815. if [ "" != "$$map_size" ]; then \
  816. if test $$map_size -ne $$file_size; then \
  817. echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
  818. echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
  819. exit 1; \
  820. fi \
  821. fi
  822. ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
  823. ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
  824. subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
  825. else
  826. subtract_sys_malloc_f_len = true
  827. endif
  828. # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
  829. # so low that the DTB could probably use 90%+ of the available space, for
  830. # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
  831. # safe for now and tweak this later if space becomes tight.
  832. # A rejected alternative would be to check that some absolute minimum stack
  833. # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
  834. # deliberately build-specific, to take account of build-to-build stack usage
  835. # differences due to different feature sets, there is no common absolute value
  836. # to check against.
  837. init_sp_bss_offset_check: u-boot.dtb FORCE
  838. @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
  839. space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
  840. $(subtract_sys_malloc_f_len) ; \
  841. quarter_space=$$(($${space} / 4)) ; \
  842. if [ $${dtb_size} -gt $${quarter_space} ]; then \
  843. echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
  844. echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
  845. exit 1 ; \
  846. fi
  847. endif
  848. u-boot-nodtb.bin: u-boot FORCE
  849. $(call if_changed,objcopy)
  850. $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
  851. $(BOARD_SIZE_CHECK)
  852. u-boot.ldr: u-boot
  853. $(CREATE_LDR_ENV)
  854. $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
  855. $(BOARD_SIZE_CHECK)
  856. # binman
  857. # ---------------------------------------------------------------------------
  858. quiet_cmd_binman = BINMAN $@
  859. cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
  860. -I . -I $(srctree)/board/$(BOARDDIR) $<
  861. OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
  862. OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
  863. u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
  864. $(call if_changed,objcopy)
  865. #
  866. # U-Boot entry point, needed for booting of full-blown U-Boot
  867. # from the SPL U-Boot version.
  868. #
  869. ifndef CONFIG_SYS_UBOOT_START
  870. CONFIG_SYS_UBOOT_START := 0
  871. endif
  872. # Create a file containing the configuration options the image was built with
  873. quiet_cmd_cpp_cfg = CFG $@
  874. cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
  875. -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
  876. # Boards with more complex image requirments can provide an .its source file
  877. # or a generator script
  878. ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
  879. U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
  880. else
  881. ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
  882. U_BOOT_ITS := u-boot.its
  883. $(U_BOOT_ITS): FORCE
  884. $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
  885. $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
  886. endif
  887. endif
  888. ifdef CONFIG_SPL_LOAD_FIT
  889. MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
  890. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  891. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
  892. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
  893. else
  894. MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
  895. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  896. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  897. MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
  898. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  899. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  900. u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
  901. CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
  902. endif
  903. MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
  904. MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
  905. -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
  906. MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
  907. -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
  908. $(if $(KEYDIR),-k $(KEYDIR))
  909. MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
  910. -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
  911. u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
  912. $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
  913. $(call if_changed,mkimage)
  914. u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
  915. $(call if_changed,mkfitimage)
  916. $(BOARD_SIZE_CHECK)
  917. u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
  918. $(call if_changed,mkimage)
  919. u-boot.sha1: u-boot.bin
  920. tools/ubsha1 u-boot.bin
  921. u-boot.dis: u-boot
  922. $(OBJDUMP) -d $< > $@
  923. ifdef CONFIG_TPL
  924. SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
  925. else
  926. SPL_PAYLOAD := u-boot.bin
  927. endif
  928. OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
  929. --pad-to=$(CONFIG_SPL_PAD_TO)
  930. u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
  931. $(call if_changed,pad_cat)
  932. MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
  933. lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
  934. $(call if_changed,mkimage)
  935. OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  936. lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
  937. $(call if_changed,objcopy)
  938. OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  939. lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
  940. $(call if_changed,objcopy)
  941. lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
  942. $(call if_changed,cat)
  943. CLEAN_FILES += lpc32xx-*
  944. OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
  945. --pad-to=$(CONFIG_TPL_PAD_TO)
  946. tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
  947. $(call if_changed,pad_cat)
  948. SPL: spl/u-boot-spl.bin FORCE
  949. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  950. u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
  951. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  952. MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
  953. u-boot.ubl: u-boot-with-spl.bin FORCE
  954. $(call if_changed,mkimage)
  955. MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
  956. $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
  957. -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
  958. spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
  959. $(call if_changed,mkimage)
  960. OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  961. u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
  962. $(call if_changed,pad_cat)
  963. u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
  964. $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
  965. u-boot.sb: u-boot.bin spl/u-boot-spl.bin
  966. $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
  967. # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
  968. # Both images are created using mkimage (crc etc), so that the ROM
  969. # bootloader can check its integrity. Padding needs to be done to the
  970. # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
  971. # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
  972. # The resulting image containing both U-Boot images is called u-boot.spr
  973. MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
  974. -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
  975. spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
  976. $(call if_changed,mkimage)
  977. OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
  978. --gap-fill=0xff
  979. u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
  980. $(call if_changed,pad_cat)
  981. ifneq ($(CONFIG_ARCH_SOCFPGA),)
  982. quiet_cmd_socboot = SOCBOOT $@
  983. cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
  984. spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
  985. u-boot.img > $@ || rm -f $@
  986. u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
  987. $(call if_changed,socboot)
  988. endif
  989. # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
  990. # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
  991. # the middle. This is handled by binman based on an image description in the
  992. # board's device tree.
  993. ifneq ($(CONFIG_X86_RESET_VECTOR),)
  994. rom: u-boot.rom FORCE
  995. refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
  996. $(call if_changed,copy)
  997. quiet_cmd_ldr = LD $@
  998. cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
  999. $(filter-out FORCE,$^) -o $@
  1000. u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
  1001. $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
  1002. $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
  1003. $(call if_changed,binman)
  1004. OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
  1005. u-boot-x86-16bit.bin: u-boot FORCE
  1006. $(call if_changed,objcopy)
  1007. endif
  1008. ifneq ($(CONFIG_ARCH_SUNXI),)
  1009. ifeq ($(CONFIG_ARM64),)
  1010. u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
  1011. $(call if_changed,binman)
  1012. else
  1013. u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
  1014. $(call if_changed,cat)
  1015. endif
  1016. endif
  1017. ifneq ($(CONFIG_TEGRA),)
  1018. ifneq ($(CONFIG_BINMAN),)
  1019. u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
  1020. spl/u-boot-spl u-boot.bin FORCE
  1021. $(call if_changed,binman)
  1022. else
  1023. OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
  1024. u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
  1025. $(call if_changed,pad_cat)
  1026. OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
  1027. u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
  1028. $(call if_changed,pad_cat)
  1029. u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
  1030. $(call if_changed,copy)
  1031. endif # binman
  1032. endif
  1033. OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
  1034. u-boot-app.efi: u-boot FORCE
  1035. $(call if_changed,zobjcopy)
  1036. u-boot.bin.o: u-boot.bin FORCE
  1037. $(call if_changed,efipayload)
  1038. u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
  1039. $(call if_changed_dep,cpp_lds)
  1040. # Rule to link the EFI payload which contains a stub and a U-Boot binary
  1041. quiet_cmd_u-boot_payload ?= LD $@
  1042. cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
  1043. -T u-boot-payload.lds arch/x86/cpu/call32.o \
  1044. lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
  1045. $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
  1046. u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
  1047. $(call if_changed,u-boot_payload)
  1048. OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
  1049. u-boot-payload.efi: u-boot-payload FORCE
  1050. $(call if_changed,zobjcopy)
  1051. u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
  1052. $(call if_changed,cat)
  1053. #Add a target to create boot binary having SPL binary in PBI format
  1054. #concatenated with u-boot binary. It is need by PowerPC SoC having
  1055. #internal SRAM <= 512KB.
  1056. MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
  1057. -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
  1058. -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
  1059. spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
  1060. $(call if_changed,mkimage)
  1061. ifeq ($(ARCH),arm)
  1062. UBOOT_BINLOAD := u-boot.img
  1063. else
  1064. UBOOT_BINLOAD := u-boot.bin
  1065. endif
  1066. OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
  1067. --gap-fill=0xff
  1068. u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
  1069. $(call if_changed,pad_cat)
  1070. # PPC4xx needs the SPL at the end of the image, since the reset vector
  1071. # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
  1072. # and need to introduce a new build target with the full blown U-Boot
  1073. # at the start padded up to the start of the SPL image. And then concat
  1074. # the SPL image to the end.
  1075. OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
  1076. --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
  1077. u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
  1078. $(call if_changed,pad_cat)
  1079. # Create a new ELF from a raw binary file.
  1080. ifndef PLATFORM_ELFENTRY
  1081. PLATFORM_ELFENTRY = "_start"
  1082. endif
  1083. quiet_cmd_u-boot-elf ?= LD $@
  1084. cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
  1085. --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
  1086. -Ttext=$(CONFIG_SYS_TEXT_BASE)
  1087. u-boot.elf: u-boot.bin
  1088. $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
  1089. $(call if_changed,u-boot-elf)
  1090. ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
  1091. # Rule to link u-boot
  1092. # May be overridden by arch/$(ARCH)/config.mk
  1093. quiet_cmd_u-boot__ ?= LD $@
  1094. cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
  1095. -T u-boot.lds $(u-boot-init) \
  1096. --start-group $(u-boot-main) --end-group \
  1097. $(PLATFORM_LIBS) -Map u-boot.map; \
  1098. $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
  1099. quiet_cmd_smap = GEN common/system_map.o
  1100. cmd_smap = \
  1101. smap=`$(call SYSTEM_MAP,u-boot) | \
  1102. awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
  1103. $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
  1104. -c $(srctree)/common/system_map.c -o common/system_map.o
  1105. u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
  1106. +$(call if_changed,u-boot__)
  1107. ifeq ($(CONFIG_KALLSYMS),y)
  1108. $(call cmd,smap)
  1109. $(call cmd,u-boot__) common/system_map.o
  1110. endif
  1111. ifeq ($(CONFIG_RISCV),y)
  1112. @tools/prelink-riscv $@ 0
  1113. endif
  1114. quiet_cmd_sym ?= SYM $@
  1115. cmd_sym ?= $(OBJDUMP) -t $< > $@
  1116. u-boot.sym: u-boot FORCE
  1117. $(call if_changed,sym)
  1118. # The actual objects are generated when descending,
  1119. # make sure no implicit rule kicks in
  1120. $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
  1121. # Handle descending into subdirectories listed in $(vmlinux-dirs)
  1122. # Preset locale variables to speed up the build process. Limit locale
  1123. # tweaks to this spot to avoid wrong language settings when running
  1124. # make menuconfig etc.
  1125. # Error messages still appears in the original language
  1126. PHONY += $(u-boot-dirs)
  1127. $(u-boot-dirs): prepare scripts
  1128. $(Q)$(MAKE) $(build)=$@
  1129. tools: prepare
  1130. # The "tools" are needed early
  1131. $(filter-out tools, $(u-boot-dirs)): tools
  1132. # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
  1133. # is "yes"), so compile examples after U-Boot is compiled.
  1134. examples: $(filter-out examples, $(u-boot-dirs))
  1135. define filechk_uboot.release
  1136. echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
  1137. endef
  1138. # Store (new) UBOOTRELEASE string in include/config/uboot.release
  1139. include/config/uboot.release: include/config/auto.conf FORCE
  1140. $(call filechk,uboot.release)
  1141. # Things we need to do before we recursively start building the kernel
  1142. # or the modules are listed in "prepare".
  1143. # A multi level approach is used. prepareN is processed before prepareN-1.
  1144. # archprepare is used in arch Makefiles and when processed asm symlink,
  1145. # version.h and scripts_basic is processed / created.
  1146. # Listed in dependency order
  1147. PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
  1148. # prepare3 is used to check if we are building in a separate output directory,
  1149. # and if so do:
  1150. # 1) Check that make has not been executed in the kernel src $(srctree)
  1151. prepare3: include/config/uboot.release
  1152. ifneq ($(KBUILD_SRC),)
  1153. @$(kecho) ' Using $(srctree) as source for U-Boot'
  1154. $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
  1155. echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
  1156. echo >&2 " in the '$(srctree)' directory.";\
  1157. /bin/false; \
  1158. fi;
  1159. endif
  1160. # prepare2 creates a makefile if using a separate output directory
  1161. prepare2: prepare3 outputmakefile
  1162. prepare1: prepare2 $(version_h) $(timestamp_h) \
  1163. include/config/auto.conf
  1164. ifeq ($(wildcard $(LDSCRIPT)),)
  1165. @echo >&2 " Could not find linker script."
  1166. @/bin/false
  1167. endif
  1168. ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
  1169. prepare1: $(defaultenv_h)
  1170. endif
  1171. archprepare: prepare1 scripts_basic
  1172. prepare0: archprepare FORCE
  1173. $(Q)$(MAKE) $(build)=.
  1174. # All the preparing..
  1175. prepare: prepare0
  1176. # Generate some files
  1177. # ---------------------------------------------------------------------------
  1178. define filechk_version.h
  1179. (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
  1180. echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
  1181. echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
  1182. echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
  1183. endef
  1184. # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
  1185. # The BSD date on the other hand behaves different and would produce errors
  1186. # with the misused '-d' switch. Respect that and search a working date with
  1187. # well known pre- and suffixes for the GNU variant of date.
  1188. define filechk_timestamp.h
  1189. (if test -n "$${SOURCE_DATE_EPOCH}"; then \
  1190. SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
  1191. DATE=""; \
  1192. for date in gdate date.gnu date; do \
  1193. $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
  1194. done; \
  1195. if test -n "$${DATE}"; then \
  1196. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
  1197. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
  1198. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
  1199. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
  1200. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
  1201. else \
  1202. return 42; \
  1203. fi; \
  1204. else \
  1205. LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
  1206. LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
  1207. LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
  1208. LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
  1209. LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
  1210. fi)
  1211. endef
  1212. define filechk_defaultenv.h
  1213. (grep -v '^#' | \
  1214. grep -v '^$$' | \
  1215. tr '\n' '\0' | \
  1216. sed -e 's/\\\x0/\n/' | \
  1217. xxd -i ; echo ", 0x00" ; )
  1218. endef
  1219. $(version_h): include/config/uboot.release FORCE
  1220. $(call filechk,version.h)
  1221. $(timestamp_h): $(srctree)/Makefile FORCE
  1222. $(call filechk,timestamp.h)
  1223. $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
  1224. $(call filechk,defaultenv.h)
  1225. # ---------------------------------------------------------------------------
  1226. quiet_cmd_cpp_lds = LDS $@
  1227. cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
  1228. -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
  1229. u-boot.lds: $(LDSCRIPT) prepare FORCE
  1230. $(call if_changed_dep,cpp_lds)
  1231. spl/u-boot-spl.bin: spl/u-boot-spl
  1232. @:
  1233. spl/u-boot-spl: tools prepare \
  1234. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
  1235. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
  1236. $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
  1237. spl/sunxi-spl.bin: spl/u-boot-spl
  1238. @:
  1239. spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
  1240. @:
  1241. spl/u-boot-spl.sfp: spl/u-boot-spl
  1242. @:
  1243. spl/boot.bin: spl/u-boot-spl
  1244. @:
  1245. tpl/u-boot-tpl.bin: tools prepare \
  1246. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
  1247. $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
  1248. TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
  1249. FIND := find
  1250. FINDFLAGS := -L
  1251. tags ctags:
  1252. ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
  1253. -name '*.[chS]' -print`
  1254. ln -s ctags tags
  1255. etags:
  1256. etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
  1257. -name '*.[chS]' -print`
  1258. cscope:
  1259. $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
  1260. cscope.files
  1261. cscope -b -q -k
  1262. SYSTEM_MAP = \
  1263. $(NM) $1 | \
  1264. grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
  1265. LC_ALL=C sort
  1266. System.map: u-boot
  1267. @$(call SYSTEM_MAP,$<) > $@
  1268. #########################################################################
  1269. # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
  1270. # R_AARCH64_RELATIVE (64-bit).
  1271. checkarmreloc: u-boot
  1272. @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
  1273. grep R_A | sort -u`"; \
  1274. if test "$$RELOC" != "R_ARM_RELATIVE" -a \
  1275. "$$RELOC" != "R_AARCH64_RELATIVE"; then \
  1276. echo "$< contains unexpected relocations: $$RELOC"; \
  1277. false; \
  1278. fi
  1279. envtools: scripts_basic $(version_h) $(timestamp_h)
  1280. $(Q)$(MAKE) $(build)=tools/env
  1281. tools-only: scripts_basic $(version_h) $(timestamp_h)
  1282. $(Q)$(MAKE) $(build)=tools
  1283. tools-all: export HOST_TOOLS_ALL=y
  1284. tools-all: envtools tools ;
  1285. cross_tools: export CROSS_BUILD_TOOLS=y
  1286. cross_tools: tools ;
  1287. .PHONY : CHANGELOG
  1288. CHANGELOG:
  1289. git log --no-merges U-Boot-1_1_5.. | \
  1290. unexpand -a | sed -e 's/\s\s*$$//' > $@
  1291. #########################################################################
  1292. ###
  1293. # Cleaning is done on three levels.
  1294. # make clean Delete most generated files
  1295. # Leave enough to build external modules
  1296. # make mrproper Delete the current configuration, and all generated files
  1297. # make distclean Remove editor backup files, patch leftover files and the like
  1298. # Directories & files removed with 'make clean'
  1299. CLEAN_DIRS += $(MODVERDIR) \
  1300. $(foreach d, spl tpl, $(patsubst %,$d/%, \
  1301. $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
  1302. CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
  1303. boot* u-boot* MLO* SPL System.map fit-dtb.blob
  1304. # Directories & files removed with 'make mrproper'
  1305. MRPROPER_DIRS += include/config include/generated spl tpl \
  1306. .tmp_objdiff
  1307. MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
  1308. ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
  1309. # clean - Delete most, but leave enough to build external modules
  1310. #
  1311. clean: rm-dirs := $(CLEAN_DIRS)
  1312. clean: rm-files := $(CLEAN_FILES)
  1313. clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
  1314. clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
  1315. PHONY += $(clean-dirs) clean archclean
  1316. $(clean-dirs):
  1317. $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
  1318. # TODO: Do not use *.cfgtmp
  1319. clean: $(clean-dirs)
  1320. $(call cmd,rmdirs)
  1321. $(call cmd,rmfiles)
  1322. @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
  1323. \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
  1324. -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
  1325. -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
  1326. -o -name '*.lex.c' -o -name '*.tab.[ch]' \
  1327. -o -name '*.symtypes' -o -name 'modules.order' \
  1328. -o -name modules.builtin -o -name '.tmp_*.o.*' \
  1329. -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
  1330. -o -name '*.gcno' \) -type f -print | xargs rm -f
  1331. # mrproper - Delete all generated files, including .config
  1332. #
  1333. mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
  1334. mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
  1335. mrproper-dirs := $(addprefix _mrproper_,scripts)
  1336. PHONY += $(mrproper-dirs) mrproper archmrproper
  1337. $(mrproper-dirs):
  1338. $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
  1339. mrproper: clean $(mrproper-dirs)
  1340. $(call cmd,rmdirs)
  1341. $(call cmd,rmfiles)
  1342. @rm -f arch/*/include/asm/arch
  1343. # distclean
  1344. #
  1345. PHONY += distclean
  1346. distclean: mrproper
  1347. @find $(srctree) $(RCS_FIND_IGNORE) \
  1348. \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
  1349. -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
  1350. -o -name '.*.rej' -o -name '*%' -o -name 'core' \
  1351. -o -name '*.pyc' \) \
  1352. -type f -print | xargs rm -f
  1353. @rm -f boards.cfg
  1354. backup:
  1355. F=`basename $(srctree)` ; cd .. ; \
  1356. gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
  1357. help:
  1358. @echo 'Cleaning targets:'
  1359. @echo ' clean - Remove most generated files but keep the config'
  1360. @echo ' mrproper - Remove all generated files + config + various backup files'
  1361. @echo ' distclean - mrproper + remove editor backup and patch files'
  1362. @echo ''
  1363. @echo 'Configuration targets:'
  1364. @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
  1365. @echo ''
  1366. @echo 'Other generic targets:'
  1367. @echo ' all - Build all necessary images depending on configuration'
  1368. @echo ' tests - Build U-Boot for sandbox and run tests'
  1369. @echo '* u-boot - Build the bare u-boot'
  1370. @echo ' dir/ - Build all files in dir and below'
  1371. @echo ' dir/file.[oisS] - Build specified target only'
  1372. @echo ' dir/file.lst - Build specified mixed source/assembly target only'
  1373. @echo ' (requires a recent binutils and recent build (System.map))'
  1374. @echo ' tags/ctags - Generate ctags file for editors'
  1375. @echo ' etags - Generate etags file for editors'
  1376. @echo ' cscope - Generate cscope index'
  1377. @echo ' ubootrelease - Output the release version string (use with make -s)'
  1378. @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
  1379. @echo " cfg - Don't build, just create the .cfg files"
  1380. @echo " envtools - Build only the target-side environment tools"
  1381. @echo ''
  1382. @echo 'Static analysers'
  1383. @echo ' checkstack - Generate a list of stack hogs'
  1384. @echo ' coccicheck - Execute static code analysis with Coccinelle'
  1385. @echo ''
  1386. @echo 'Documentation targets:'
  1387. @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
  1388. @echo ''
  1389. @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
  1390. @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
  1391. @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
  1392. @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
  1393. @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
  1394. @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
  1395. @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
  1396. @echo ' 1: warnings which may be relevant and do not occur too often'
  1397. @echo ' 2: warnings which occur quite often but may still be relevant'
  1398. @echo ' 3: more obscure warnings, can most likely be ignored'
  1399. @echo ' Multiple levels can be combined with W=12 or W=123'
  1400. @echo ''
  1401. @echo 'Execute "make" or "make all" to build all targets marked with [*] '
  1402. @echo 'For further info see the ./README file'
  1403. tests:
  1404. $(srctree)/test/run
  1405. # Documentation targets
  1406. # ---------------------------------------------------------------------------
  1407. %docs: scripts_basic FORCE
  1408. $(Q)$(MAKE) $(build)=scripts build_docproc
  1409. $(Q)$(MAKE) $(build)=doc/DocBook $@
  1410. endif #ifeq ($(config-targets),1)
  1411. endif #ifeq ($(mixed-targets),1)
  1412. PHONY += checkstack ubootrelease ubootversion
  1413. checkstack:
  1414. $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
  1415. $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
  1416. ubootrelease:
  1417. @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
  1418. ubootversion:
  1419. @echo $(UBOOTVERSION)
  1420. # Single targets
  1421. # ---------------------------------------------------------------------------
  1422. # Single targets are compatible with:
  1423. # - build with mixed source and output
  1424. # - build with separate output dir 'make O=...'
  1425. # - external modules
  1426. #
  1427. # target-dir => where to store outputfile
  1428. # build-dir => directory in kernel source tree to use
  1429. ifeq ($(KBUILD_EXTMOD),)
  1430. build-dir = $(patsubst %/,%,$(dir $@))
  1431. target-dir = $(dir $@)
  1432. else
  1433. zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
  1434. build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
  1435. target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
  1436. endif
  1437. %.s: %.c prepare scripts FORCE
  1438. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1439. %.i: %.c prepare scripts FORCE
  1440. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1441. %.o: %.c prepare scripts FORCE
  1442. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1443. %.lst: %.c prepare scripts FORCE
  1444. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1445. %.s: %.S prepare scripts FORCE
  1446. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1447. %.o: %.S prepare scripts FORCE
  1448. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1449. %.symtypes: %.c prepare scripts FORCE
  1450. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1451. # Modules
  1452. /: prepare scripts FORCE
  1453. $(cmd_crmodverdir)
  1454. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  1455. $(build)=$(build-dir)
  1456. %/: prepare scripts FORCE
  1457. $(cmd_crmodverdir)
  1458. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  1459. $(build)=$(build-dir)
  1460. %.ko: prepare scripts FORCE
  1461. $(cmd_crmodverdir)
  1462. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  1463. $(build)=$(build-dir) $(@:.ko=.o)
  1464. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
  1465. # Consistency checks
  1466. # ---------------------------------------------------------------------------
  1467. PHONY += coccicheck
  1468. coccicheck:
  1469. $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
  1470. # FIXME Should go into a make.lib or something
  1471. # ===========================================================================
  1472. quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
  1473. cmd_rmdirs = rm -rf $(rm-dirs)
  1474. quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
  1475. cmd_rmfiles = rm -f $(rm-files)
  1476. # read all saved command lines
  1477. targets := $(wildcard $(sort $(targets)))
  1478. cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
  1479. ifneq ($(cmd_files),)
  1480. $(cmd_files): ; # Do not try to update included dependency files
  1481. include $(cmd_files)
  1482. endif
  1483. endif # skip-makefile
  1484. PHONY += FORCE
  1485. FORCE:
  1486. # Declare the contents of the .PHONY variable as phony. We keep that
  1487. # information in a variable so we can use it in if_changed and friends.
  1488. .PHONY: $(PHONY)