Makefile 60 KB

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  1. # SPDX-License-Identifier: GPL-2.0+
  2. VERSION = 2018
  3. PATCHLEVEL = 11
  4. SUBLEVEL =
  5. EXTRAVERSION = -rc2
  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 $(CONFIG_TOOLS_DEBUG),-g)
  217. HOSTCXXFLAGS = -O2
  218. # With the move to GCC 6, we have implicitly upgraded our language
  219. # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
  220. # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
  221. # have older compilers as their default, so we make it explicit for
  222. # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
  223. CSTD_FLAG := -std=gnu11
  224. ifeq ($(HOSTOS),linux)
  225. HOSTCFLAGS += $(CSTD_FLAG)
  226. endif
  227. ifeq ($(HOSTOS),cygwin)
  228. HOSTCFLAGS += -ansi
  229. endif
  230. # Mac OS X / Darwin's C preprocessor is Apple specific. It
  231. # generates numerous errors and warnings. We want to bypass it
  232. # and use GNU C's cpp. To do this we pass the -traditional-cpp
  233. # option to the compiler. Note that the -traditional-cpp flag
  234. # DOES NOT have the same semantics as GNU C's flag, all it does
  235. # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
  236. #
  237. # Apple's linker is similar, thanks to the new 2 stage linking
  238. # multiple symbol definitions are treated as errors, hence the
  239. # -multiply_defined suppress option to turn off this error.
  240. #
  241. ifeq ($(HOSTOS),darwin)
  242. # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
  243. DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
  244. DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
  245. os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
  246. $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
  247. # Snow Leopards build environment has no longer restrictions as described above
  248. HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
  249. HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
  250. HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
  251. # since Lion (10.7) ASLR is on by default, but we use linker generated lists
  252. # in some host tools which is a problem then ... so disable ASLR for these
  253. # tools
  254. HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
  255. endif
  256. # Decide whether to build built-in, modular, or both.
  257. # Normally, just do built-in.
  258. KBUILD_MODULES :=
  259. KBUILD_BUILTIN := 1
  260. # If we have only "make modules", don't compile built-in objects.
  261. # When we're building modules with modversions, we need to consider
  262. # the built-in objects during the descend as well, in order to
  263. # make sure the checksums are up to date before we record them.
  264. ifeq ($(MAKECMDGOALS),modules)
  265. KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
  266. endif
  267. # If we have "make <whatever> modules", compile modules
  268. # in addition to whatever we do anyway.
  269. # Just "make" or "make all" shall build modules as well
  270. # U-Boot does not need modules
  271. #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
  272. # KBUILD_MODULES := 1
  273. #endif
  274. #ifeq ($(MAKECMDGOALS),)
  275. # KBUILD_MODULES := 1
  276. #endif
  277. export KBUILD_MODULES KBUILD_BUILTIN
  278. export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
  279. # We need some generic definitions (do not try to remake the file).
  280. scripts/Kbuild.include: ;
  281. include scripts/Kbuild.include
  282. # Make variables (CC, etc...)
  283. AS = $(CROSS_COMPILE)as
  284. # Always use GNU ld
  285. ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
  286. LD = $(CROSS_COMPILE)ld.bfd
  287. else
  288. LD = $(CROSS_COMPILE)ld
  289. endif
  290. CC = $(CROSS_COMPILE)gcc
  291. CPP = $(CC) -E
  292. AR = $(CROSS_COMPILE)ar
  293. NM = $(CROSS_COMPILE)nm
  294. LDR = $(CROSS_COMPILE)ldr
  295. STRIP = $(CROSS_COMPILE)strip
  296. OBJCOPY = $(CROSS_COMPILE)objcopy
  297. OBJDUMP = $(CROSS_COMPILE)objdump
  298. LEX = flex
  299. YACC = bison
  300. AWK = awk
  301. PERL = perl
  302. PYTHON ?= python
  303. PYTHON2 = python2
  304. PYTHON3 = python3
  305. DTC ?= $(objtree)/scripts/dtc/dtc
  306. CHECK = sparse
  307. CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
  308. -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
  309. KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
  310. KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
  311. -Wno-format-security \
  312. -fno-builtin -ffreestanding $(CSTD_FLAG)
  313. KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
  314. KBUILD_AFLAGS := -D__ASSEMBLY__
  315. # Don't generate position independent code
  316. KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
  317. KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
  318. # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
  319. UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
  320. UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
  321. export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
  322. export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
  323. export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
  324. export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
  325. export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
  326. export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
  327. export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
  328. export KBUILD_CFLAGS KBUILD_AFLAGS
  329. # When compiling out-of-tree modules, put MODVERDIR in the module
  330. # tree rather than in the kernel tree. The kernel tree might
  331. # even be read-only.
  332. export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
  333. # Files to ignore in find ... statements
  334. export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
  335. -name CVS -o -name .pc -o -name .hg -o -name .git \) \
  336. -prune -o
  337. export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
  338. --exclude CVS --exclude .pc --exclude .hg --exclude .git
  339. # ===========================================================================
  340. # Rules shared between *config targets and build targets
  341. # Basic helpers built in scripts/
  342. PHONY += scripts_basic
  343. scripts_basic:
  344. $(Q)$(MAKE) $(build)=scripts/basic
  345. $(Q)rm -f .tmp_quiet_recordmcount
  346. # To avoid any implicit rule to kick in, define an empty command.
  347. scripts/basic/%: scripts_basic ;
  348. PHONY += outputmakefile
  349. # outputmakefile generates a Makefile in the output directory, if using a
  350. # separate output directory. This allows convenient use of make in the
  351. # output directory.
  352. outputmakefile:
  353. ifneq ($(KBUILD_SRC),)
  354. $(Q)ln -fsn $(srctree) source
  355. $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
  356. $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
  357. endif
  358. # To make sure we do not include .config for any of the *config targets
  359. # catch them early, and hand them over to scripts/kconfig/Makefile
  360. # It is allowed to specify more targets when calling make, including
  361. # mixing *config targets and build targets.
  362. # For example 'make oldconfig all'.
  363. # Detect when mixed targets is specified, and make a second invocation
  364. # of make so .config is not included in this case either (for *config).
  365. version_h := include/generated/version_autogenerated.h
  366. timestamp_h := include/generated/timestamp_autogenerated.h
  367. defaultenv_h := include/generated/defaultenv_autogenerated.h
  368. no-dot-config-targets := clean clobber mrproper distclean \
  369. help %docs check% coccicheck \
  370. ubootversion backup tests
  371. config-targets := 0
  372. mixed-targets := 0
  373. dot-config := 1
  374. ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
  375. ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
  376. dot-config := 0
  377. endif
  378. endif
  379. ifeq ($(KBUILD_EXTMOD),)
  380. ifneq ($(filter config %config,$(MAKECMDGOALS)),)
  381. config-targets := 1
  382. ifneq ($(words $(MAKECMDGOALS)),1)
  383. mixed-targets := 1
  384. endif
  385. endif
  386. endif
  387. ifeq ($(mixed-targets),1)
  388. # ===========================================================================
  389. # We're called with mixed targets (*config and build targets).
  390. # Handle them one by one.
  391. PHONY += $(MAKECMDGOALS) __build_one_by_one
  392. $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
  393. @:
  394. __build_one_by_one:
  395. $(Q)set -e; \
  396. for i in $(MAKECMDGOALS); do \
  397. $(MAKE) -f $(srctree)/Makefile $$i; \
  398. done
  399. else
  400. ifeq ($(config-targets),1)
  401. # ===========================================================================
  402. # *config targets only - make sure prerequisites are updated, and descend
  403. # in scripts/kconfig to make the *config target
  404. KBUILD_DEFCONFIG := sandbox_defconfig
  405. export KBUILD_DEFCONFIG KBUILD_KCONFIG
  406. config: scripts_basic outputmakefile FORCE
  407. $(Q)$(MAKE) $(build)=scripts/kconfig $@
  408. %config: scripts_basic outputmakefile FORCE
  409. $(Q)$(MAKE) $(build)=scripts/kconfig $@
  410. else
  411. # ===========================================================================
  412. # Build targets only - this includes vmlinux, arch specific targets, clean
  413. # targets and others. In general all targets except *config targets.
  414. # Additional helpers built in scripts/
  415. # Carefully list dependencies so we do not try to build scripts twice
  416. # in parallel
  417. PHONY += scripts
  418. scripts: scripts_basic include/config/auto.conf
  419. $(Q)$(MAKE) $(build)=$(@)
  420. ifeq ($(dot-config),1)
  421. # Read in config
  422. -include include/config/auto.conf
  423. # Read in dependencies to all Kconfig* files, make sure to run
  424. # oldconfig if changes are detected.
  425. -include include/config/auto.conf.cmd
  426. # To avoid any implicit rule to kick in, define an empty command
  427. $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
  428. # If .config is newer than include/config/auto.conf, someone tinkered
  429. # with it and forgot to run make oldconfig.
  430. # if auto.conf.cmd is missing then we are probably in a cleaned tree so
  431. # we execute the config step to be sure to catch updated Kconfig files
  432. include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
  433. $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
  434. @# If the following part fails, include/config/auto.conf should be
  435. @# deleted so "make silentoldconfig" will be re-run on the next build.
  436. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
  437. { rm -f include/config/auto.conf; false; }
  438. @# include/config.h has been updated after "make silentoldconfig".
  439. @# We need to touch include/config/auto.conf so it gets newer
  440. @# than include/config.h.
  441. @# Otherwise, 'make silentoldconfig' would be invoked twice.
  442. $(Q)touch include/config/auto.conf
  443. u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
  444. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
  445. -include include/autoconf.mk
  446. -include include/autoconf.mk.dep
  447. # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
  448. # is up-to-date. When we switch to a different board configuration, old CONFIG
  449. # macros are still remaining in include/config/auto.conf. Without the following
  450. # gimmick, wrong config.mk would be included leading nasty warnings/errors.
  451. ifneq ($(wildcard $(KCONFIG_CONFIG)),)
  452. ifneq ($(wildcard include/config/auto.conf),)
  453. autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
  454. include/config/auto.conf)
  455. ifeq ($(autoconf_is_old),)
  456. include config.mk
  457. include arch/$(ARCH)/Makefile
  458. endif
  459. endif
  460. endif
  461. # These are set by the arch-specific config.mk. Make sure they are exported
  462. # so they can be used when building an EFI application.
  463. export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
  464. export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
  465. export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
  466. export CFLAGS_EFI # Compiler flags to add when building EFI app
  467. export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
  468. export EFI_TARGET # binutils target if EFI is natively supported
  469. # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
  470. # that (or fail if absent). Otherwise, search for a linker script in a
  471. # standard location.
  472. ifndef LDSCRIPT
  473. #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
  474. ifdef CONFIG_SYS_LDSCRIPT
  475. # need to strip off double quotes
  476. LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
  477. endif
  478. endif
  479. # If there is no specified link script, we look in a number of places for it
  480. ifndef LDSCRIPT
  481. ifeq ($(wildcard $(LDSCRIPT)),)
  482. LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
  483. endif
  484. ifeq ($(wildcard $(LDSCRIPT)),)
  485. LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
  486. endif
  487. ifeq ($(wildcard $(LDSCRIPT)),)
  488. LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
  489. endif
  490. endif
  491. else
  492. # Dummy target needed, because used as prerequisite
  493. include/config/auto.conf: ;
  494. endif # $(dot-config)
  495. #
  496. # Xtensa linker script cannot be preprocessed with -ansi because of
  497. # preprocessor operations on strings that don't make C identifiers.
  498. #
  499. ifeq ($(CONFIG_XTENSA),)
  500. LDPPFLAGS += -ansi
  501. endif
  502. ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
  503. KBUILD_CFLAGS += -Os
  504. else
  505. KBUILD_CFLAGS += -O2
  506. endif
  507. KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
  508. KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
  509. # change __FILE__ to the relative path from the srctree
  510. KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
  511. KBUILD_CFLAGS += -g
  512. # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
  513. # option to the assembler.
  514. KBUILD_AFLAGS += -g
  515. # Report stack usage if supported
  516. # ARC tools based on GCC 7.1 has an issue with stack usage
  517. # with naked functions, see commit message for more details
  518. ifndef CONFIG_ARC
  519. ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
  520. KBUILD_CFLAGS += -fstack-usage
  521. endif
  522. endif
  523. KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
  524. ifeq ($(cc-name),clang)
  525. KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
  526. KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
  527. KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
  528. KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
  529. KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
  530. endif
  531. # turn jbsr into jsr for m68k
  532. ifeq ($(ARCH),m68k)
  533. ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
  534. KBUILD_AFLAGS += -Wa,-gstabs,-S
  535. endif
  536. endif
  537. # Prohibit date/time macros, which would make the build non-deterministic
  538. KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
  539. include scripts/Makefile.extrawarn
  540. # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
  541. KBUILD_CPPFLAGS += $(KCPPFLAGS)
  542. KBUILD_AFLAGS += $(KAFLAGS)
  543. KBUILD_CFLAGS += $(KCFLAGS)
  544. # Use UBOOTINCLUDE when you must reference the include/ directory.
  545. # Needed to be compatible with the O= option
  546. UBOOTINCLUDE := \
  547. -Iinclude \
  548. $(if $(KBUILD_SRC), -I$(srctree)/include) \
  549. $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
  550. $(if $(CONFIG_HAS_THUMB2),, \
  551. -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
  552. -I$(srctree)/arch/$(ARCH)/include \
  553. -include $(srctree)/include/linux/kconfig.h
  554. NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
  555. CHECKFLAGS += $(NOSTDINC_FLAGS)
  556. # FIX ME
  557. cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  558. $(NOSTDINC_FLAGS)
  559. c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  560. #########################################################################
  561. # U-Boot objects....order is important (i.e. start must be first)
  562. HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  563. libs-y += lib/
  564. libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  565. libs-$(CONFIG_OF_EMBED) += dts/
  566. libs-y += fs/
  567. libs-y += net/
  568. libs-y += disk/
  569. libs-y += drivers/
  570. libs-y += drivers/dma/
  571. libs-y += drivers/gpio/
  572. libs-y += drivers/i2c/
  573. libs-y += drivers/mtd/
  574. libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
  575. libs-y += drivers/mtd/onenand/
  576. libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
  577. libs-y += drivers/mtd/spi/
  578. libs-y += drivers/net/
  579. libs-y += drivers/net/phy/
  580. libs-y += drivers/pci/
  581. libs-y += drivers/power/ \
  582. drivers/power/domain/ \
  583. drivers/power/fuel_gauge/ \
  584. drivers/power/mfd/ \
  585. drivers/power/pmic/ \
  586. drivers/power/battery/ \
  587. drivers/power/regulator/
  588. libs-y += drivers/spi/
  589. libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
  590. libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
  591. libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
  592. libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
  593. libs-y += drivers/serial/
  594. libs-y += drivers/usb/dwc3/
  595. libs-y += drivers/usb/common/
  596. libs-y += drivers/usb/emul/
  597. libs-y += drivers/usb/eth/
  598. libs-y += drivers/usb/gadget/
  599. libs-y += drivers/usb/gadget/udc/
  600. libs-y += drivers/usb/host/
  601. libs-y += drivers/usb/musb/
  602. libs-y += drivers/usb/musb-new/
  603. libs-y += drivers/usb/phy/
  604. libs-y += drivers/usb/ulpi/
  605. libs-y += cmd/
  606. libs-y += common/
  607. libs-y += env/
  608. libs-$(CONFIG_API) += api/
  609. libs-$(CONFIG_HAS_POST) += post/
  610. libs-y += test/
  611. libs-y += test/dm/
  612. libs-$(CONFIG_UT_ENV) += test/env/
  613. libs-$(CONFIG_UT_OVERLAY) += test/overlay/
  614. libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  615. libs-y := $(sort $(libs-y))
  616. u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
  617. u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
  618. libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  619. u-boot-init := $(head-y)
  620. u-boot-main := $(libs-y)
  621. # Add GCC lib
  622. ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  623. PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  624. else
  625. PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
  626. endif
  627. PLATFORM_LIBS += $(PLATFORM_LIBGCC)
  628. ifdef CONFIG_CC_COVERAGE
  629. KBUILD_CFLAGS += --coverage
  630. PLATFORM_LIBGCC += -lgcov
  631. endif
  632. export PLATFORM_LIBS
  633. export PLATFORM_LIBGCC
  634. # Special flags for CPP when processing the linker script.
  635. # Pass the version down so we can handle backwards compatibility
  636. # on the fly.
  637. LDPPFLAGS += \
  638. -include $(srctree)/include/u-boot/u-boot.lds.h \
  639. -DCPUDIR=$(CPUDIR) \
  640. $(shell $(LD) --version | \
  641. sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
  642. #########################################################################
  643. #########################################################################
  644. ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
  645. BOARD_SIZE_CHECK = \
  646. @actual=`wc -c $@ | awk '{print $$1}'`; \
  647. limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
  648. if test $$actual -gt $$limit; then \
  649. echo "$@ exceeds file size limit:" >&2 ; \
  650. echo " limit: $$limit bytes" >&2 ; \
  651. echo " actual: $$actual bytes" >&2 ; \
  652. echo " excess: $$((actual - limit)) bytes" >&2; \
  653. exit 1; \
  654. fi
  655. else
  656. BOARD_SIZE_CHECK =
  657. endif
  658. # Statically apply RELA-style relocations (currently arm64 only)
  659. # This is useful for arm64 where static relocation needs to be performed on
  660. # the raw binary, but certain simulators only accept an ELF file (but don't
  661. # do the relocation).
  662. ifneq ($(CONFIG_STATIC_RELA),)
  663. # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
  664. DO_STATIC_RELA = \
  665. start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
  666. end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
  667. tools/relocate-rela $(2) $(3) $$start $$end
  668. else
  669. DO_STATIC_RELA =
  670. endif
  671. # Always append ALL so that arch config.mk's can add custom ones
  672. ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
  673. ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
  674. ifeq ($(CONFIG_SPL_FSL_PBL),y)
  675. ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
  676. else
  677. ifneq ($(CONFIG_SECURE_BOOT), y)
  678. # For Secure Boot The Image needs to be signed and Header must also
  679. # be included. So The image has to be built explicitly
  680. ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
  681. endif
  682. endif
  683. ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
  684. ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
  685. ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
  686. else
  687. ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
  688. ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
  689. else
  690. ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
  691. endif
  692. endif
  693. ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
  694. ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
  695. ifeq ($(CONFIG_SPL_FRAMEWORK),y)
  696. ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
  697. endif
  698. ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
  699. ifneq ($(CONFIG_SPL_TARGET),)
  700. ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
  701. endif
  702. ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
  703. ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
  704. ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
  705. ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
  706. ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
  707. endif
  708. # Build a combined spl + u-boot image for sunxi
  709. ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
  710. ALL-y += u-boot-sunxi-with-spl.bin
  711. endif
  712. # enable combined SPL/u-boot/dtb rules for tegra
  713. ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
  714. ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
  715. ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
  716. endif
  717. # Add optional build target if defined in board/cpu/soc headers
  718. ifneq ($(CONFIG_BUILD_TARGET),)
  719. ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
  720. endif
  721. ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
  722. ALL-y += init_sp_bss_offset_check
  723. endif
  724. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  725. ALL-y += u-boot-with-dtb.bin
  726. endif
  727. LDFLAGS_u-boot += $(LDFLAGS_FINAL)
  728. # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
  729. LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
  730. ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
  731. LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
  732. endif
  733. # Normally we fill empty space with 0xff
  734. quiet_cmd_objcopy = OBJCOPY $@
  735. cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
  736. $(OBJCOPYFLAGS_$(@F)) $< $@
  737. # Provide a version which does not do this, for use by EFI
  738. quiet_cmd_zobjcopy = OBJCOPY $@
  739. cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
  740. quiet_cmd_efipayload = OBJCOPY $@
  741. cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
  742. MKIMAGEOUTPUT ?= /dev/null
  743. quiet_cmd_mkimage = MKIMAGE $@
  744. cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
  745. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  746. quiet_cmd_mkfitimage = MKIMAGE $@
  747. cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
  748. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  749. quiet_cmd_cat = CAT $@
  750. cmd_cat = cat $(filter-out $(PHONY), $^) > $@
  751. append = cat $(filter-out $< $(PHONY), $^) >> $@
  752. quiet_cmd_pad_cat = CAT $@
  753. cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
  754. cfg: u-boot.cfg
  755. quiet_cmd_cfgcheck = CFGCHK $2
  756. cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
  757. $(srctree)/scripts/config_whitelist.txt $(srctree)
  758. all: $(ALL-y) cfg
  759. ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
  760. @echo "===================== WARNING ======================"
  761. @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
  762. @echo "(possibly in a subsequent patch in your series)"
  763. @echo "before sending patches to the mailing list."
  764. @echo "===================================================="
  765. endif
  766. @# Check that this build does not use CONFIG options that we do not
  767. @# know about unless they are in Kconfig. All the existing CONFIG
  768. @# options are whitelisted, so new ones should not be added.
  769. $(call cmd,cfgcheck,u-boot.cfg)
  770. PHONY += dtbs
  771. dtbs: dts/dt.dtb
  772. @:
  773. dts/dt.dtb: u-boot
  774. $(Q)$(MAKE) $(build)=dts dtbs
  775. quiet_cmd_copy = COPY $@
  776. cmd_copy = cp $< $@
  777. ifeq ($(CONFIG_MULTI_DTB_FIT),y)
  778. fit-dtb.blob: dts/dt.dtb FORCE
  779. $(call if_changed,mkimage)
  780. MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
  781. -a 0 -e 0 -E \
  782. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
  783. u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
  784. $(call if_changed,cat)
  785. u-boot.bin: u-boot-fit-dtb.bin FORCE
  786. $(call if_changed,copy)
  787. else ifeq ($(CONFIG_OF_SEPARATE),y)
  788. u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
  789. $(call if_changed,cat)
  790. u-boot.bin: u-boot-dtb.bin FORCE
  791. $(call if_changed,copy)
  792. else
  793. u-boot.bin: u-boot-nodtb.bin FORCE
  794. $(call if_changed,copy)
  795. endif
  796. %.imx: %.bin
  797. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  798. %.vyb: %.imx
  799. $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
  800. quiet_cmd_copy = COPY $@
  801. cmd_copy = cp $< $@
  802. u-boot.dtb: dts/dt.dtb
  803. $(call cmd,copy)
  804. OBJCOPYFLAGS_u-boot.hex := -O ihex
  805. OBJCOPYFLAGS_u-boot.srec := -O srec
  806. u-boot.hex u-boot.srec: u-boot FORCE
  807. $(call if_changed,objcopy)
  808. OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
  809. u-boot-elf.srec: u-boot.elf FORCE
  810. $(call if_changed,objcopy)
  811. OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
  812. spl/u-boot-spl.srec: spl/u-boot-spl FORCE
  813. $(call if_changed,objcopy)
  814. OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
  815. $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
  816. $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
  817. OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
  818. spl/u-boot-spl.hex: spl/u-boot-spl FORCE
  819. $(call if_changed,objcopy)
  820. binary_size_check: u-boot-nodtb.bin FORCE
  821. @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
  822. map_size=$(shell cat u-boot.map | \
  823. awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
  824. | sed 's/0X//g' \
  825. | bc); \
  826. if [ "" != "$$map_size" ]; then \
  827. if test $$map_size -ne $$file_size; then \
  828. echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
  829. echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
  830. exit 1; \
  831. fi \
  832. fi
  833. ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
  834. ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
  835. subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
  836. else
  837. subtract_sys_malloc_f_len = true
  838. endif
  839. # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
  840. # so low that the DTB could probably use 90%+ of the available space, for
  841. # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
  842. # safe for now and tweak this later if space becomes tight.
  843. # A rejected alternative would be to check that some absolute minimum stack
  844. # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
  845. # deliberately build-specific, to take account of build-to-build stack usage
  846. # differences due to different feature sets, there is no common absolute value
  847. # to check against.
  848. init_sp_bss_offset_check: u-boot.dtb FORCE
  849. @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
  850. space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
  851. $(subtract_sys_malloc_f_len) ; \
  852. quarter_space=$$(($${space} / 4)) ; \
  853. if [ $${dtb_size} -gt $${quarter_space} ]; then \
  854. echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
  855. echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
  856. exit 1 ; \
  857. fi
  858. endif
  859. u-boot-nodtb.bin: u-boot FORCE
  860. $(call if_changed,objcopy)
  861. $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
  862. $(BOARD_SIZE_CHECK)
  863. u-boot.ldr: u-boot
  864. $(CREATE_LDR_ENV)
  865. $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
  866. $(BOARD_SIZE_CHECK)
  867. # binman
  868. # ---------------------------------------------------------------------------
  869. quiet_cmd_binman = BINMAN $@
  870. cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
  871. -I . -I $(srctree)/board/$(BOARDDIR) $<
  872. OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
  873. OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
  874. u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
  875. $(call if_changed,objcopy)
  876. #
  877. # U-Boot entry point, needed for booting of full-blown U-Boot
  878. # from the SPL U-Boot version.
  879. #
  880. ifndef CONFIG_SYS_UBOOT_START
  881. CONFIG_SYS_UBOOT_START := 0
  882. endif
  883. # Boards with more complex image requirments can provide an .its source file
  884. # or a generator script
  885. ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
  886. U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
  887. else
  888. ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
  889. U_BOOT_ITS := u-boot.its
  890. ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
  891. U_BOOT_ITS_DEPS += u-boot
  892. endif
  893. $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
  894. $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
  895. $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
  896. endif
  897. endif
  898. ifdef CONFIG_SPL_LOAD_FIT
  899. MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
  900. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  901. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
  902. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
  903. else
  904. MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
  905. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  906. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  907. MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
  908. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  909. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  910. u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
  911. CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
  912. endif
  913. MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
  914. MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
  915. -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
  916. MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
  917. -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
  918. $(if $(KEYDIR),-k $(KEYDIR))
  919. MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
  920. -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
  921. u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
  922. $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
  923. $(call if_changed,mkimage)
  924. u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
  925. $(call if_changed,mkfitimage)
  926. $(BOARD_SIZE_CHECK)
  927. u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
  928. $(call if_changed,mkimage)
  929. u-boot.sha1: u-boot.bin
  930. tools/ubsha1 u-boot.bin
  931. u-boot.dis: u-boot
  932. $(OBJDUMP) -d $< > $@
  933. ifneq ($(CONFIG_SPL_PAYLOAD),)
  934. SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
  935. else
  936. SPL_PAYLOAD := u-boot.bin
  937. endif
  938. OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
  939. --pad-to=$(CONFIG_SPL_PAD_TO)
  940. u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
  941. $(call if_changed,pad_cat)
  942. ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
  943. MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
  944. lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
  945. $(call if_changed,mkimage)
  946. OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  947. lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
  948. $(call if_changed,objcopy)
  949. OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  950. lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
  951. $(call if_changed,objcopy)
  952. lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
  953. $(call if_changed,cat)
  954. CLEAN_FILES += lpc32xx-*
  955. endif
  956. OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
  957. --pad-to=$(CONFIG_TPL_PAD_TO)
  958. tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
  959. $(call if_changed,pad_cat)
  960. SPL: spl/u-boot-spl.bin FORCE
  961. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  962. u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
  963. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  964. MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
  965. u-boot.ubl: u-boot-with-spl.bin FORCE
  966. $(call if_changed,mkimage)
  967. MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
  968. $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
  969. -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
  970. spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
  971. $(call if_changed,mkimage)
  972. OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  973. u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
  974. $(call if_changed,pad_cat)
  975. u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
  976. $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
  977. u-boot.sb: u-boot.bin spl/u-boot-spl.bin
  978. $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
  979. # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
  980. # Both images are created using mkimage (crc etc), so that the ROM
  981. # bootloader can check its integrity. Padding needs to be done to the
  982. # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
  983. # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
  984. # The resulting image containing both U-Boot images is called u-boot.spr
  985. MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
  986. -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
  987. spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
  988. $(call if_changed,mkimage)
  989. OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
  990. --gap-fill=0xff
  991. u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
  992. $(call if_changed,pad_cat)
  993. ifneq ($(CONFIG_ARCH_SOCFPGA),)
  994. quiet_cmd_socboot = SOCBOOT $@
  995. cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
  996. spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
  997. u-boot.img > $@ || rm -f $@
  998. u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
  999. $(call if_changed,socboot)
  1000. endif
  1001. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  1002. u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
  1003. $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
  1004. $(call if_changed,binman)
  1005. ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
  1006. OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
  1007. u-boot-br.bin: u-boot FORCE
  1008. $(call if_changed,objcopy)
  1009. endif
  1010. endif
  1011. # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
  1012. # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
  1013. # the middle. This is handled by binman based on an image description in the
  1014. # board's device tree.
  1015. ifneq ($(CONFIG_X86_RESET_VECTOR),)
  1016. rom: u-boot.rom FORCE
  1017. refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
  1018. $(call if_changed,copy)
  1019. quiet_cmd_ldr = LD $@
  1020. cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
  1021. $(filter-out FORCE,$^) -o $@
  1022. u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
  1023. $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
  1024. $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
  1025. $(call if_changed,binman)
  1026. OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
  1027. u-boot-x86-16bit.bin: u-boot FORCE
  1028. $(call if_changed,objcopy)
  1029. endif
  1030. ifneq ($(CONFIG_ARCH_SUNXI),)
  1031. ifeq ($(CONFIG_ARM64),)
  1032. u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
  1033. $(call if_changed,binman)
  1034. else
  1035. u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
  1036. $(call if_changed,cat)
  1037. endif
  1038. endif
  1039. ifneq ($(CONFIG_TEGRA),)
  1040. ifneq ($(CONFIG_BINMAN),)
  1041. # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
  1042. %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
  1043. spl/%-spl %.bin FORCE
  1044. $(call if_changed,binman)
  1045. else
  1046. OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
  1047. u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
  1048. $(call if_changed,pad_cat)
  1049. OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
  1050. u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
  1051. $(call if_changed,pad_cat)
  1052. u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
  1053. $(call if_changed,copy)
  1054. endif # binman
  1055. endif
  1056. OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
  1057. u-boot-app.efi: u-boot FORCE
  1058. $(call if_changed,zobjcopy)
  1059. u-boot.bin.o: u-boot.bin FORCE
  1060. $(call if_changed,efipayload)
  1061. u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
  1062. $(call if_changed_dep,cpp_lds)
  1063. # Rule to link the EFI payload which contains a stub and a U-Boot binary
  1064. quiet_cmd_u-boot_payload ?= LD $@
  1065. cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
  1066. -T u-boot-payload.lds arch/x86/cpu/call32.o \
  1067. lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
  1068. $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
  1069. u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
  1070. $(call if_changed,u-boot_payload)
  1071. OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
  1072. u-boot-payload.efi: u-boot-payload FORCE
  1073. $(call if_changed,zobjcopy)
  1074. u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
  1075. $(call if_changed,cat)
  1076. #Add a target to create boot binary having SPL binary in PBI format
  1077. #concatenated with u-boot binary. It is need by PowerPC SoC having
  1078. #internal SRAM <= 512KB.
  1079. MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
  1080. -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
  1081. -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
  1082. spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
  1083. $(call if_changed,mkimage)
  1084. ifeq ($(ARCH),arm)
  1085. UBOOT_BINLOAD := u-boot.img
  1086. else
  1087. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  1088. UBOOT_BINLOAD := u-boot-with-dtb.bin
  1089. else
  1090. UBOOT_BINLOAD := u-boot.bin
  1091. endif
  1092. endif
  1093. OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
  1094. --gap-fill=0xff
  1095. u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
  1096. $(call if_changed,pad_cat)
  1097. # PPC4xx needs the SPL at the end of the image, since the reset vector
  1098. # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
  1099. # and need to introduce a new build target with the full blown U-Boot
  1100. # at the start padded up to the start of the SPL image. And then concat
  1101. # the SPL image to the end.
  1102. OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
  1103. --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
  1104. u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
  1105. $(call if_changed,pad_cat)
  1106. # Create a new ELF from a raw binary file.
  1107. ifndef PLATFORM_ELFENTRY
  1108. PLATFORM_ELFENTRY = "_start"
  1109. endif
  1110. quiet_cmd_u-boot-elf ?= LD $@
  1111. cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
  1112. --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
  1113. -Ttext=$(CONFIG_SYS_TEXT_BASE)
  1114. u-boot.elf: u-boot.bin
  1115. $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
  1116. $(call if_changed,u-boot-elf)
  1117. ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
  1118. # Rule to link u-boot
  1119. # May be overridden by arch/$(ARCH)/config.mk
  1120. quiet_cmd_u-boot__ ?= LD $@
  1121. cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
  1122. -T u-boot.lds $(u-boot-init) \
  1123. --start-group $(u-boot-main) --end-group \
  1124. $(PLATFORM_LIBS) -Map u-boot.map; \
  1125. $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
  1126. quiet_cmd_smap = GEN common/system_map.o
  1127. cmd_smap = \
  1128. smap=`$(call SYSTEM_MAP,u-boot) | \
  1129. awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
  1130. $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
  1131. -c $(srctree)/common/system_map.c -o common/system_map.o
  1132. u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
  1133. +$(call if_changed,u-boot__)
  1134. ifeq ($(CONFIG_KALLSYMS),y)
  1135. $(call cmd,smap)
  1136. $(call cmd,u-boot__) common/system_map.o
  1137. endif
  1138. ifeq ($(CONFIG_RISCV),y)
  1139. @tools/prelink-riscv $@ 0
  1140. endif
  1141. quiet_cmd_sym ?= SYM $@
  1142. cmd_sym ?= $(OBJDUMP) -t $< > $@
  1143. u-boot.sym: u-boot FORCE
  1144. $(call if_changed,sym)
  1145. # The actual objects are generated when descending,
  1146. # make sure no implicit rule kicks in
  1147. $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
  1148. # Handle descending into subdirectories listed in $(vmlinux-dirs)
  1149. # Preset locale variables to speed up the build process. Limit locale
  1150. # tweaks to this spot to avoid wrong language settings when running
  1151. # make menuconfig etc.
  1152. # Error messages still appears in the original language
  1153. PHONY += $(u-boot-dirs)
  1154. $(u-boot-dirs): prepare scripts
  1155. $(Q)$(MAKE) $(build)=$@
  1156. tools: prepare
  1157. # The "tools" are needed early
  1158. $(filter-out tools, $(u-boot-dirs)): tools
  1159. # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
  1160. # is "yes"), so compile examples after U-Boot is compiled.
  1161. examples: $(filter-out examples, $(u-boot-dirs))
  1162. define filechk_uboot.release
  1163. echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
  1164. endef
  1165. # Store (new) UBOOTRELEASE string in include/config/uboot.release
  1166. include/config/uboot.release: include/config/auto.conf FORCE
  1167. $(call filechk,uboot.release)
  1168. # Things we need to do before we recursively start building the kernel
  1169. # or the modules are listed in "prepare".
  1170. # A multi level approach is used. prepareN is processed before prepareN-1.
  1171. # archprepare is used in arch Makefiles and when processed asm symlink,
  1172. # version.h and scripts_basic is processed / created.
  1173. # Listed in dependency order
  1174. PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
  1175. # prepare3 is used to check if we are building in a separate output directory,
  1176. # and if so do:
  1177. # 1) Check that make has not been executed in the kernel src $(srctree)
  1178. prepare3: include/config/uboot.release
  1179. ifneq ($(KBUILD_SRC),)
  1180. @$(kecho) ' Using $(srctree) as source for U-Boot'
  1181. $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
  1182. echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
  1183. echo >&2 " in the '$(srctree)' directory.";\
  1184. /bin/false; \
  1185. fi;
  1186. endif
  1187. # prepare2 creates a makefile if using a separate output directory
  1188. prepare2: prepare3 outputmakefile
  1189. prepare1: prepare2 $(version_h) $(timestamp_h) \
  1190. include/config/auto.conf
  1191. ifeq ($(wildcard $(LDSCRIPT)),)
  1192. @echo >&2 " Could not find linker script."
  1193. @/bin/false
  1194. endif
  1195. ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
  1196. prepare1: $(defaultenv_h)
  1197. endif
  1198. archprepare: prepare1 scripts_basic
  1199. prepare0: archprepare FORCE
  1200. $(Q)$(MAKE) $(build)=.
  1201. # All the preparing..
  1202. prepare: prepare0
  1203. # Generate some files
  1204. # ---------------------------------------------------------------------------
  1205. define filechk_version.h
  1206. (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
  1207. echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
  1208. echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
  1209. echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
  1210. endef
  1211. # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
  1212. # The BSD date on the other hand behaves different and would produce errors
  1213. # with the misused '-d' switch. Respect that and search a working date with
  1214. # well known pre- and suffixes for the GNU variant of date.
  1215. define filechk_timestamp.h
  1216. (if test -n "$${SOURCE_DATE_EPOCH}"; then \
  1217. SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
  1218. DATE=""; \
  1219. for date in gdate date.gnu date; do \
  1220. $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
  1221. done; \
  1222. if test -n "$${DATE}"; then \
  1223. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
  1224. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
  1225. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
  1226. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
  1227. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
  1228. else \
  1229. return 42; \
  1230. fi; \
  1231. else \
  1232. LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
  1233. LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
  1234. LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
  1235. LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
  1236. LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
  1237. fi)
  1238. endef
  1239. define filechk_defaultenv.h
  1240. (grep -v '^#' | \
  1241. grep -v '^$$' | \
  1242. tr '\n' '\0' | \
  1243. sed -e 's/\\\x0/\n/' | \
  1244. xxd -i ; echo ", 0x00" ; )
  1245. endef
  1246. $(version_h): include/config/uboot.release FORCE
  1247. $(call filechk,version.h)
  1248. $(timestamp_h): $(srctree)/Makefile FORCE
  1249. $(call filechk,timestamp.h)
  1250. $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
  1251. $(call filechk,defaultenv.h)
  1252. # ---------------------------------------------------------------------------
  1253. quiet_cmd_cpp_lds = LDS $@
  1254. cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
  1255. -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
  1256. u-boot.lds: $(LDSCRIPT) prepare FORCE
  1257. $(call if_changed_dep,cpp_lds)
  1258. spl/u-boot-spl.bin: spl/u-boot-spl
  1259. @:
  1260. spl/u-boot-spl: tools prepare \
  1261. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
  1262. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
  1263. $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
  1264. spl/sunxi-spl.bin: spl/u-boot-spl
  1265. @:
  1266. spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
  1267. @:
  1268. spl/u-boot-spl.sfp: spl/u-boot-spl
  1269. @:
  1270. spl/boot.bin: spl/u-boot-spl
  1271. @:
  1272. tpl/u-boot-tpl.bin: tools prepare \
  1273. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
  1274. $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
  1275. TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
  1276. FIND := find
  1277. FINDFLAGS := -L
  1278. tags ctags:
  1279. ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
  1280. -name '*.[chS]' -print`
  1281. ln -s ctags tags
  1282. etags:
  1283. etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
  1284. -name '*.[chS]' -print`
  1285. cscope:
  1286. $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
  1287. cscope.files
  1288. cscope -b -q -k
  1289. SYSTEM_MAP = \
  1290. $(NM) $1 | \
  1291. grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
  1292. LC_ALL=C sort
  1293. System.map: u-boot
  1294. @$(call SYSTEM_MAP,$<) > $@
  1295. #########################################################################
  1296. # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
  1297. # R_AARCH64_RELATIVE (64-bit).
  1298. checkarmreloc: u-boot
  1299. @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
  1300. grep R_A | sort -u`"; \
  1301. if test "$$RELOC" != "R_ARM_RELATIVE" -a \
  1302. "$$RELOC" != "R_AARCH64_RELATIVE"; then \
  1303. echo "$< contains unexpected relocations: $$RELOC"; \
  1304. false; \
  1305. fi
  1306. envtools: scripts_basic $(version_h) $(timestamp_h)
  1307. $(Q)$(MAKE) $(build)=tools/env
  1308. tools-only: scripts_basic $(version_h) $(timestamp_h)
  1309. $(Q)$(MAKE) $(build)=tools
  1310. tools-all: export HOST_TOOLS_ALL=y
  1311. tools-all: envtools tools ;
  1312. cross_tools: export CROSS_BUILD_TOOLS=y
  1313. cross_tools: tools ;
  1314. .PHONY : CHANGELOG
  1315. CHANGELOG:
  1316. git log --no-merges U-Boot-1_1_5.. | \
  1317. unexpand -a | sed -e 's/\s\s*$$//' > $@
  1318. #########################################################################
  1319. ###
  1320. # Cleaning is done on three levels.
  1321. # make clean Delete most generated files
  1322. # Leave enough to build external modules
  1323. # make mrproper Delete the current configuration, and all generated files
  1324. # make distclean Remove editor backup files, patch leftover files and the like
  1325. # Directories & files removed with 'make clean'
  1326. CLEAN_DIRS += $(MODVERDIR) \
  1327. $(foreach d, spl tpl, $(patsubst %,$d/%, \
  1328. $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
  1329. CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
  1330. boot* u-boot* MLO* SPL System.map fit-dtb.blob
  1331. # Directories & files removed with 'make mrproper'
  1332. MRPROPER_DIRS += include/config include/generated spl tpl \
  1333. .tmp_objdiff
  1334. MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
  1335. ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
  1336. # clean - Delete most, but leave enough to build external modules
  1337. #
  1338. clean: rm-dirs := $(CLEAN_DIRS)
  1339. clean: rm-files := $(CLEAN_FILES)
  1340. clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
  1341. clean-dirs := $(addprefix _clean_, $(clean-dirs))
  1342. PHONY += $(clean-dirs) clean archclean
  1343. $(clean-dirs):
  1344. $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
  1345. clean: $(clean-dirs)
  1346. $(call cmd,rmdirs)
  1347. $(call cmd,rmfiles)
  1348. @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
  1349. \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
  1350. -o -name '*.ko.*' -o -name '*.su' \
  1351. -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
  1352. -o -name '*.lex.c' -o -name '*.tab.[ch]' \
  1353. -o -name '*.symtypes' -o -name 'modules.order' \
  1354. -o -name modules.builtin -o -name '.tmp_*.o.*' \
  1355. -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
  1356. -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
  1357. -type f -print | xargs rm -f
  1358. # mrproper - Delete all generated files, including .config
  1359. #
  1360. mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
  1361. mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
  1362. mrproper-dirs := $(addprefix _mrproper_,scripts)
  1363. PHONY += $(mrproper-dirs) mrproper archmrproper
  1364. $(mrproper-dirs):
  1365. $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
  1366. mrproper: clean $(mrproper-dirs)
  1367. $(call cmd,rmdirs)
  1368. $(call cmd,rmfiles)
  1369. @rm -f arch/*/include/asm/arch
  1370. # distclean
  1371. #
  1372. PHONY += distclean
  1373. distclean: mrproper
  1374. @find $(srctree) $(RCS_FIND_IGNORE) \
  1375. \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
  1376. -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
  1377. -o -name '.*.rej' -o -name '*%' -o -name 'core' \
  1378. -o -name '*.pyc' \) \
  1379. -type f -print | xargs rm -f
  1380. @rm -f boards.cfg
  1381. backup:
  1382. F=`basename $(srctree)` ; cd .. ; \
  1383. gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
  1384. help:
  1385. @echo 'Cleaning targets:'
  1386. @echo ' clean - Remove most generated files but keep the config'
  1387. @echo ' mrproper - Remove all generated files + config + various backup files'
  1388. @echo ' distclean - mrproper + remove editor backup and patch files'
  1389. @echo ''
  1390. @echo 'Configuration targets:'
  1391. @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
  1392. @echo ''
  1393. @echo 'Test targets:'
  1394. @echo ''
  1395. @echo ' check - Run all automated tests that use sandbox'
  1396. @echo ''
  1397. @echo 'Other generic targets:'
  1398. @echo ' all - Build all necessary images depending on configuration'
  1399. @echo ' tests - Build U-Boot for sandbox and run tests'
  1400. @echo '* u-boot - Build the bare u-boot'
  1401. @echo ' dir/ - Build all files in dir and below'
  1402. @echo ' dir/file.[oisS] - Build specified target only'
  1403. @echo ' dir/file.lst - Build specified mixed source/assembly target only'
  1404. @echo ' (requires a recent binutils and recent build (System.map))'
  1405. @echo ' tags/ctags - Generate ctags file for editors'
  1406. @echo ' etags - Generate etags file for editors'
  1407. @echo ' cscope - Generate cscope index'
  1408. @echo ' ubootrelease - Output the release version string (use with make -s)'
  1409. @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
  1410. @echo " cfg - Don't build, just create the .cfg files"
  1411. @echo " envtools - Build only the target-side environment tools"
  1412. @echo ''
  1413. @echo 'Static analysers'
  1414. @echo ' checkstack - Generate a list of stack hogs'
  1415. @echo ' coccicheck - Execute static code analysis with Coccinelle'
  1416. @echo ''
  1417. @echo 'Documentation targets:'
  1418. @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
  1419. @echo ''
  1420. @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
  1421. @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
  1422. @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
  1423. @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
  1424. @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
  1425. @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
  1426. @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
  1427. @echo ' 1: warnings which may be relevant and do not occur too often'
  1428. @echo ' 2: warnings which occur quite often but may still be relevant'
  1429. @echo ' 3: more obscure warnings, can most likely be ignored'
  1430. @echo ' Multiple levels can be combined with W=12 or W=123'
  1431. @echo ''
  1432. @echo 'Execute "make" or "make all" to build all targets marked with [*] '
  1433. @echo 'For further info see the ./README file'
  1434. tests check:
  1435. $(srctree)/test/run
  1436. # Documentation targets
  1437. # ---------------------------------------------------------------------------
  1438. DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
  1439. linkcheckdocs dochelp refcheckdocs
  1440. PHONY += $(DOC_TARGETS)
  1441. $(DOC_TARGETS): scripts_basic FORCE
  1442. $(Q)$(MAKE) $(build)=Documentation $@
  1443. endif #ifeq ($(config-targets),1)
  1444. endif #ifeq ($(mixed-targets),1)
  1445. PHONY += checkstack ubootrelease ubootversion
  1446. checkstack:
  1447. $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
  1448. $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
  1449. ubootrelease:
  1450. @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
  1451. ubootversion:
  1452. @echo $(UBOOTVERSION)
  1453. # Single targets
  1454. # ---------------------------------------------------------------------------
  1455. # Single targets are compatible with:
  1456. # - build with mixed source and output
  1457. # - build with separate output dir 'make O=...'
  1458. # - external modules
  1459. #
  1460. # target-dir => where to store outputfile
  1461. # build-dir => directory in kernel source tree to use
  1462. ifeq ($(KBUILD_EXTMOD),)
  1463. build-dir = $(patsubst %/,%,$(dir $@))
  1464. target-dir = $(dir $@)
  1465. else
  1466. zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
  1467. build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
  1468. target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
  1469. endif
  1470. %.s: %.c prepare scripts FORCE
  1471. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1472. %.i: %.c prepare scripts FORCE
  1473. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1474. %.o: %.c prepare scripts FORCE
  1475. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1476. %.lst: %.c prepare scripts FORCE
  1477. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1478. %.s: %.S prepare scripts FORCE
  1479. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1480. %.o: %.S prepare scripts FORCE
  1481. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1482. %.symtypes: %.c prepare scripts FORCE
  1483. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1484. # Modules
  1485. /: prepare scripts FORCE
  1486. $(cmd_crmodverdir)
  1487. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  1488. $(build)=$(build-dir)
  1489. %/: prepare scripts FORCE
  1490. $(cmd_crmodverdir)
  1491. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  1492. $(build)=$(build-dir)
  1493. %.ko: prepare scripts FORCE
  1494. $(cmd_crmodverdir)
  1495. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  1496. $(build)=$(build-dir) $(@:.ko=.o)
  1497. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
  1498. # Consistency checks
  1499. # ---------------------------------------------------------------------------
  1500. PHONY += coccicheck
  1501. coccicheck:
  1502. $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
  1503. # FIXME Should go into a make.lib or something
  1504. # ===========================================================================
  1505. quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
  1506. cmd_rmdirs = rm -rf $(rm-dirs)
  1507. quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
  1508. cmd_rmfiles = rm -f $(rm-files)
  1509. # read all saved command lines
  1510. targets := $(wildcard $(sort $(targets)))
  1511. cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
  1512. ifneq ($(cmd_files),)
  1513. $(cmd_files): ; # Do not try to update included dependency files
  1514. include $(cmd_files)
  1515. endif
  1516. endif # skip-makefile
  1517. PHONY += FORCE
  1518. FORCE:
  1519. # Declare the contents of the .PHONY variable as phony. We keep that
  1520. # information in a variable so we can use it in if_changed and friends.
  1521. .PHONY: $(PHONY)