Makefile 81 KB

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  1. # SPDX-License-Identifier: GPL-2.0+
  2. VERSION = 2022
  3. PATCHLEVEL = 04
  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. # Do not use make's built-in rules and variables
  13. # (this increases performance and avoids hard-to-debug behaviour)
  14. MAKEFLAGS += -rR
  15. # Determine target architecture for the sandbox
  16. include include/host_arch.h
  17. ifeq ("", "$(CROSS_COMPILE)")
  18. MK_ARCH="${shell uname -m}"
  19. else
  20. MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^\s*\([^\/]*\/\)*\([^-]*\)-\S*/\2/p'}"
  21. endif
  22. unexport HOST_ARCH
  23. ifeq ("x86_64", $(MK_ARCH))
  24. export HOST_ARCH=$(HOST_ARCH_X86_64)
  25. else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
  26. export HOST_ARCH=$(HOST_ARCH_X86)
  27. else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
  28. export HOST_ARCH=$(HOST_ARCH_AARCH64)
  29. else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7l"))
  30. export HOST_ARCH=$(HOST_ARCH_ARM)
  31. else ifeq ("riscv32", $(MK_ARCH))
  32. export HOST_ARCH=$(HOST_ARCH_RISCV32)
  33. else ifeq ("riscv64", $(MK_ARCH))
  34. export HOST_ARCH=$(HOST_ARCH_RISCV64)
  35. endif
  36. undefine MK_ARCH
  37. # Avoid funny character set dependencies
  38. unexport LC_ALL
  39. LC_COLLATE=C
  40. LC_NUMERIC=C
  41. export LC_COLLATE LC_NUMERIC
  42. # Avoid interference with shell env settings
  43. unexport GREP_OPTIONS
  44. # We are using a recursive build, so we need to do a little thinking
  45. # to get the ordering right.
  46. #
  47. # Most importantly: sub-Makefiles should only ever modify files in
  48. # their own directory. If in some directory we have a dependency on
  49. # a file in another dir (which doesn't happen often, but it's often
  50. # unavoidable when linking the built-in.o targets which finally
  51. # turn into vmlinux), we will call a sub make in that other dir, and
  52. # after that we are sure that everything which is in that other dir
  53. # is now up to date.
  54. #
  55. # The only cases where we need to modify files which have global
  56. # effects are thus separated out and done before the recursive
  57. # descending is started. They are now explicitly listed as the
  58. # prepare rule.
  59. # Beautify output
  60. # ---------------------------------------------------------------------------
  61. #
  62. # Normally, we echo the whole command before executing it. By making
  63. # that echo $($(quiet)$(cmd)), we now have the possibility to set
  64. # $(quiet) to choose other forms of output instead, e.g.
  65. #
  66. # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  67. # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
  68. #
  69. # If $(quiet) is empty, the whole command will be printed.
  70. # If it is set to "quiet_", only the short version will be printed.
  71. # If it is set to "silent_", nothing will be printed at all, since
  72. # the variable $(silent_cmd_cc_o_c) doesn't exist.
  73. #
  74. # A simple variant is to prefix commands with $(Q) - that's useful
  75. # for commands that shall be hidden in non-verbose mode.
  76. #
  77. # $(Q)ln $@ :<
  78. #
  79. # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  80. # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  81. #
  82. # To put more focus on warnings, be less verbose as default
  83. # Use 'make V=1' to see the full commands
  84. ifeq ("$(origin V)", "command line")
  85. KBUILD_VERBOSE = $(V)
  86. endif
  87. ifndef KBUILD_VERBOSE
  88. KBUILD_VERBOSE = 0
  89. endif
  90. ifeq ($(KBUILD_VERBOSE),1)
  91. quiet =
  92. Q =
  93. else
  94. quiet=quiet_
  95. Q = @
  96. endif
  97. # If the user is running make -s (silent mode), suppress echoing of
  98. # commands
  99. ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
  100. ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  101. quiet=silent_
  102. endif
  103. else # make-3.8x
  104. ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  105. quiet=silent_
  106. endif
  107. endif
  108. export quiet Q KBUILD_VERBOSE
  109. # kbuild supports saving output files in a separate directory.
  110. # To locate output files in a separate directory two syntaxes are supported.
  111. # In both cases the working directory must be the root of the kernel src.
  112. # 1) O=
  113. # Use "make O=dir/to/store/output/files/"
  114. #
  115. # 2) Set KBUILD_OUTPUT
  116. # Set the environment variable KBUILD_OUTPUT to point to the directory
  117. # where the output files shall be placed.
  118. # export KBUILD_OUTPUT=dir/to/store/output/files/
  119. # make
  120. #
  121. # The O= assignment takes precedence over the KBUILD_OUTPUT environment
  122. # variable.
  123. # KBUILD_SRC is set on invocation of make in OBJ directory
  124. # KBUILD_SRC is not intended to be used by the regular user (for now)
  125. ifeq ($(KBUILD_SRC),)
  126. # OK, Make called in directory where kernel src resides
  127. # Do we want to locate output files in a separate directory?
  128. ifeq ("$(origin O)", "command line")
  129. KBUILD_OUTPUT := $(O)
  130. endif
  131. # That's our default target when none is given on the command line
  132. PHONY := _all
  133. _all:
  134. # Cancel implicit rules on top Makefile
  135. $(CURDIR)/Makefile Makefile: ;
  136. ifneq ($(KBUILD_OUTPUT),)
  137. # Invoke a second make in the output directory, passing relevant variables
  138. # check that the output directory actually exists
  139. saved-output := $(KBUILD_OUTPUT)
  140. KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
  141. && /bin/pwd)
  142. $(if $(KBUILD_OUTPUT),, \
  143. $(error failed to create output directory "$(saved-output)"))
  144. # Look for make include files relative to root of kernel src
  145. #
  146. # This does not become effective immediately because MAKEFLAGS is re-parsed
  147. # once after the Makefile is read. It is OK since we are going to invoke
  148. # 'sub-make' below.
  149. MAKEFLAGS += --include-dir=$(CURDIR)
  150. PHONY += $(MAKECMDGOALS) sub-make
  151. $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
  152. @:
  153. sub-make: FORCE
  154. $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
  155. -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
  156. # Leave processing to above invocation of make
  157. skip-makefile := 1
  158. endif # ifneq ($(KBUILD_OUTPUT),)
  159. endif # ifeq ($(KBUILD_SRC),)
  160. # We process the rest of the Makefile if this is the final invocation of make
  161. ifeq ($(skip-makefile),)
  162. # Do not print "Entering directory ...",
  163. # but we want to display it when entering to the output directory
  164. # so that IDEs/editors are able to understand relative filenames.
  165. MAKEFLAGS += --no-print-directory
  166. # Call a source code checker (by default, "sparse") as part of the
  167. # C compilation.
  168. #
  169. # Use 'make C=1' to enable checking of only re-compiled files.
  170. # Use 'make C=2' to enable checking of *all* source files, regardless
  171. # of whether they are re-compiled or not.
  172. #
  173. # See the file "doc/sparse.txt" for more details, including
  174. # where to get the "sparse" utility.
  175. ifeq ("$(origin C)", "command line")
  176. KBUILD_CHECKSRC = $(C)
  177. endif
  178. ifndef KBUILD_CHECKSRC
  179. KBUILD_CHECKSRC = 0
  180. endif
  181. # Use make M=dir to specify directory of external module to build
  182. # Old syntax make ... SUBDIRS=$PWD is still supported
  183. # Setting the environment variable KBUILD_EXTMOD take precedence
  184. ifdef SUBDIRS
  185. KBUILD_EXTMOD ?= $(SUBDIRS)
  186. endif
  187. ifeq ("$(origin M)", "command line")
  188. KBUILD_EXTMOD := $(M)
  189. endif
  190. # If building an external module we do not care about the all: rule
  191. # but instead _all depend on modules
  192. PHONY += all
  193. ifeq ($(KBUILD_EXTMOD),)
  194. _all: all
  195. else
  196. _all: modules
  197. endif
  198. ifeq ($(KBUILD_SRC),)
  199. # building in the source tree
  200. srctree := .
  201. else
  202. ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
  203. # building in a subdirectory of the source tree
  204. srctree := ..
  205. else
  206. srctree := $(KBUILD_SRC)
  207. endif
  208. endif
  209. objtree := .
  210. src := $(srctree)
  211. obj := $(objtree)
  212. VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
  213. export srctree objtree VPATH
  214. # Make sure CDPATH settings don't interfere
  215. unexport CDPATH
  216. #########################################################################
  217. HOSTARCH := $(shell uname -m | \
  218. sed -e s/i.86/x86/ \
  219. -e s/sun4u/sparc64/ \
  220. -e s/arm.*/arm/ \
  221. -e s/sa110/arm/ \
  222. -e s/ppc64/powerpc/ \
  223. -e s/ppc/powerpc/ \
  224. -e s/macppc/powerpc/\
  225. -e s/sh.*/sh/)
  226. HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
  227. sed -e 's/\(cygwin\).*/cygwin/')
  228. export HOSTARCH HOSTOS
  229. #########################################################################
  230. # set default to nothing for native builds
  231. ifeq ($(HOSTARCH),$(ARCH))
  232. CROSS_COMPILE ?=
  233. endif
  234. KCONFIG_CONFIG ?= .config
  235. export KCONFIG_CONFIG
  236. # SHELL used by kbuild
  237. CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  238. else if [ -x /bin/bash ]; then echo /bin/bash; \
  239. else echo sh; fi ; fi)
  240. HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
  241. HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
  242. HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
  243. HOSTCC = cc
  244. HOSTCXX = c++
  245. KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
  246. $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
  247. KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
  248. KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
  249. KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
  250. # With the move to GCC 6, we have implicitly upgraded our language
  251. # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
  252. # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
  253. # have older compilers as their default, so we make it explicit for
  254. # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
  255. CSTD_FLAG := -std=gnu11
  256. KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
  257. ifeq ($(HOSTOS),cygwin)
  258. KBUILD_HOSTCFLAGS += -ansi
  259. endif
  260. # Mac OS X / Darwin's C preprocessor is Apple specific. It
  261. # generates numerous errors and warnings. We want to bypass it
  262. # and use GNU C's cpp. To do this we pass the -traditional-cpp
  263. # option to the compiler. Note that the -traditional-cpp flag
  264. # DOES NOT have the same semantics as GNU C's flag, all it does
  265. # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
  266. #
  267. # Apple's linker is similar, thanks to the new 2 stage linking
  268. # multiple symbol definitions are treated as errors, hence the
  269. # -multiply_defined suppress option to turn off this error.
  270. #
  271. ifeq ($(HOSTOS),darwin)
  272. # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
  273. DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
  274. DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
  275. os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
  276. $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
  277. os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
  278. $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
  279. # Snow Leopards build environment has no longer restrictions as described above
  280. HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
  281. KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
  282. KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
  283. # macOS Mojave (10.14.X)
  284. # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
  285. KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
  286. endif
  287. # Decide whether to build built-in, modular, or both.
  288. # Normally, just do built-in.
  289. KBUILD_MODULES :=
  290. KBUILD_BUILTIN := 1
  291. # If we have only "make modules", don't compile built-in objects.
  292. # When we're building modules with modversions, we need to consider
  293. # the built-in objects during the descend as well, in order to
  294. # make sure the checksums are up to date before we record them.
  295. ifeq ($(MAKECMDGOALS),modules)
  296. KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
  297. endif
  298. # If we have "make <whatever> modules", compile modules
  299. # in addition to whatever we do anyway.
  300. # Just "make" or "make all" shall build modules as well
  301. # U-Boot does not need modules
  302. #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
  303. # KBUILD_MODULES := 1
  304. #endif
  305. #ifeq ($(MAKECMDGOALS),)
  306. # KBUILD_MODULES := 1
  307. #endif
  308. # Check ths size of a binary:
  309. # Args:
  310. # $1: File to check
  311. # #2: Size limit in bytes (decimal or 0xhex)
  312. define size_check
  313. actual=$$( wc -c $1 | awk '{print $$1}'); \
  314. limit=$$( printf "%d" $2 ); \
  315. if test $$actual -gt $$limit; then \
  316. echo "$1 exceeds file size limit:" >&2; \
  317. echo " limit: $$(printf %#x $$limit) bytes" >&2; \
  318. echo " actual: $$(printf %#x $$actual) bytes" >&2; \
  319. echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
  320. exit 1; \
  321. fi
  322. endef
  323. export size_check
  324. export KBUILD_MODULES KBUILD_BUILTIN
  325. export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
  326. # We need some generic definitions (do not try to remake the file).
  327. scripts/Kbuild.include: ;
  328. include scripts/Kbuild.include
  329. # Make variables (CC, etc...)
  330. AS = $(CROSS_COMPILE)as
  331. # Always use GNU ld
  332. ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
  333. LD = $(CROSS_COMPILE)ld.bfd
  334. else
  335. LD = $(CROSS_COMPILE)ld
  336. endif
  337. CC = $(CROSS_COMPILE)gcc
  338. CPP = $(CC) -E
  339. AR = $(CROSS_COMPILE)ar
  340. NM = $(CROSS_COMPILE)nm
  341. LDR = $(CROSS_COMPILE)ldr
  342. STRIP = $(CROSS_COMPILE)strip
  343. OBJCOPY = $(CROSS_COMPILE)objcopy
  344. OBJDUMP = $(CROSS_COMPILE)objdump
  345. LEX = flex
  346. YACC = bison
  347. AWK = awk
  348. PERL = perl
  349. PYTHON ?= python
  350. PYTHON2 = python2
  351. PYTHON3 ?= python3
  352. # The devicetree compiler and pylibfdt are automatically built unless DTC is
  353. # provided. If DTC is provided, it is assumed the pylibfdt is available too.
  354. DTC_INTREE := $(objtree)/scripts/dtc/dtc
  355. DTC ?= $(DTC_INTREE)
  356. DTC_MIN_VERSION := 010406
  357. CHECK = sparse
  358. CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
  359. -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
  360. KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
  361. KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
  362. -Wno-format-security \
  363. -fno-builtin -ffreestanding $(CSTD_FLAG)
  364. KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
  365. KBUILD_AFLAGS := -D__ASSEMBLY__
  366. KBUILD_LDFLAGS :=
  367. ifeq ($(cc-name),clang)
  368. ifneq ($(CROSS_COMPILE),)
  369. CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
  370. GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
  371. CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
  372. GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
  373. endif
  374. ifneq ($(GCC_TOOLCHAIN),)
  375. CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
  376. endif
  377. KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
  378. KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
  379. KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
  380. KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
  381. endif
  382. # Don't generate position independent code
  383. KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
  384. KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
  385. # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
  386. UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
  387. UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
  388. export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
  389. export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
  390. export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
  391. export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
  392. export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
  393. export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
  394. export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
  395. export KBUILD_CFLAGS KBUILD_AFLAGS
  396. export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
  397. # When compiling out-of-tree modules, put MODVERDIR in the module
  398. # tree rather than in the kernel tree. The kernel tree might
  399. # even be read-only.
  400. export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
  401. # Files to ignore in find ... statements
  402. export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
  403. -name CVS -o -name .pc -o -name .hg -o -name .git \) \
  404. -prune -o
  405. export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
  406. --exclude CVS --exclude .pc --exclude .hg --exclude .git
  407. # ===========================================================================
  408. # Rules shared between *config targets and build targets
  409. # Basic helpers built in scripts/
  410. PHONY += scripts_basic
  411. scripts_basic:
  412. $(Q)$(MAKE) $(build)=scripts/basic
  413. $(Q)rm -f .tmp_quiet_recordmcount
  414. # To avoid any implicit rule to kick in, define an empty command.
  415. scripts/basic/%: scripts_basic ;
  416. PHONY += outputmakefile
  417. # outputmakefile generates a Makefile in the output directory, if using a
  418. # separate output directory. This allows convenient use of make in the
  419. # output directory.
  420. outputmakefile:
  421. ifneq ($(KBUILD_SRC),)
  422. $(Q)ln -fsn $(srctree) source
  423. $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
  424. endif
  425. # To make sure we do not include .config for any of the *config targets
  426. # catch them early, and hand them over to scripts/kconfig/Makefile
  427. # It is allowed to specify more targets when calling make, including
  428. # mixing *config targets and build targets.
  429. # For example 'make oldconfig all'.
  430. # Detect when mixed targets is specified, and make a second invocation
  431. # of make so .config is not included in this case either (for *config).
  432. version_h := include/generated/version_autogenerated.h
  433. timestamp_h := include/generated/timestamp_autogenerated.h
  434. defaultenv_h := include/generated/defaultenv_autogenerated.h
  435. dt_h := include/generated/dt.h
  436. env_h := include/generated/environment.h
  437. no-dot-config-targets := clean clobber mrproper distclean \
  438. help %docs check% coccicheck \
  439. ubootversion backup tests check qcheck tcheck pylint
  440. config-targets := 0
  441. mixed-targets := 0
  442. dot-config := 1
  443. ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
  444. ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
  445. dot-config := 0
  446. endif
  447. endif
  448. ifeq ($(KBUILD_EXTMOD),)
  449. ifneq ($(filter config %config,$(MAKECMDGOALS)),)
  450. config-targets := 1
  451. ifneq ($(words $(MAKECMDGOALS)),1)
  452. mixed-targets := 1
  453. endif
  454. endif
  455. endif
  456. ifeq ($(mixed-targets),1)
  457. # ===========================================================================
  458. # We're called with mixed targets (*config and build targets).
  459. # Handle them one by one.
  460. PHONY += $(MAKECMDGOALS) __build_one_by_one
  461. $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
  462. @:
  463. __build_one_by_one:
  464. $(Q)set -e; \
  465. for i in $(MAKECMDGOALS); do \
  466. $(MAKE) -f $(srctree)/Makefile $$i; \
  467. done
  468. else
  469. ifeq ($(config-targets),1)
  470. # ===========================================================================
  471. # *config targets only - make sure prerequisites are updated, and descend
  472. # in scripts/kconfig to make the *config target
  473. KBUILD_DEFCONFIG := sandbox_defconfig
  474. export KBUILD_DEFCONFIG KBUILD_KCONFIG
  475. config: scripts_basic outputmakefile FORCE
  476. $(Q)$(MAKE) $(build)=scripts/kconfig $@
  477. %config: scripts_basic outputmakefile FORCE
  478. $(Q)$(MAKE) $(build)=scripts/kconfig $@
  479. else
  480. # ===========================================================================
  481. # Build targets only - this includes vmlinux, arch specific targets, clean
  482. # targets and others. In general all targets except *config targets.
  483. # Additional helpers built in scripts/
  484. # Carefully list dependencies so we do not try to build scripts twice
  485. # in parallel
  486. PHONY += scripts
  487. scripts: scripts_basic scripts_dtc include/config/auto.conf
  488. $(Q)$(MAKE) $(build)=$(@)
  489. ifeq ($(dot-config),1)
  490. # Read in config
  491. -include include/config/auto.conf
  492. # Read in dependencies to all Kconfig* files, make sure to run
  493. # oldconfig if changes are detected.
  494. -include include/config/auto.conf.cmd
  495. # To avoid any implicit rule to kick in, define an empty command
  496. $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
  497. # If .config is newer than include/config/auto.conf, someone tinkered
  498. # with it and forgot to run make oldconfig.
  499. # if auto.conf.cmd is missing then we are probably in a cleaned tree so
  500. # we execute the config step to be sure to catch updated Kconfig files
  501. include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
  502. $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
  503. @# If the following part fails, include/config/auto.conf should be
  504. @# deleted so "make silentoldconfig" will be re-run on the next build.
  505. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
  506. { rm -f include/config/auto.conf; false; }
  507. @# include/config.h has been updated after "make silentoldconfig".
  508. @# We need to touch include/config/auto.conf so it gets newer
  509. @# than include/config.h.
  510. @# Otherwise, 'make silentoldconfig' would be invoked twice.
  511. $(Q)touch include/config/auto.conf
  512. u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
  513. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
  514. -include include/autoconf.mk
  515. -include include/autoconf.mk.dep
  516. # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
  517. # is up-to-date. When we switch to a different board configuration, old CONFIG
  518. # macros are still remaining in include/config/auto.conf. Without the following
  519. # gimmick, wrong config.mk would be included leading nasty warnings/errors.
  520. ifneq ($(wildcard $(KCONFIG_CONFIG)),)
  521. ifneq ($(wildcard include/config/auto.conf),)
  522. autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
  523. include/config/auto.conf)
  524. ifeq ($(autoconf_is_old),)
  525. include config.mk
  526. include arch/$(ARCH)/Makefile
  527. endif
  528. endif
  529. endif
  530. # These are set by the arch-specific config.mk. Make sure they are exported
  531. # so they can be used when building an EFI application.
  532. export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
  533. export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
  534. export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
  535. export CFLAGS_EFI # Compiler flags to add when building EFI app
  536. export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
  537. export EFI_TARGET # binutils target if EFI is natively supported
  538. # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
  539. # that (or fail if absent). Otherwise, search for a linker script in a
  540. # standard location.
  541. ifndef LDSCRIPT
  542. #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
  543. ifdef CONFIG_SYS_LDSCRIPT
  544. # need to strip off double quotes
  545. LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
  546. endif
  547. endif
  548. # If there is no specified link script, we look in a number of places for it
  549. ifndef LDSCRIPT
  550. ifeq ($(wildcard $(LDSCRIPT)),)
  551. LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
  552. endif
  553. ifeq ($(wildcard $(LDSCRIPT)),)
  554. LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
  555. endif
  556. ifeq ($(wildcard $(LDSCRIPT)),)
  557. LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
  558. endif
  559. endif
  560. else
  561. # Dummy target needed, because used as prerequisite
  562. include/config/auto.conf: ;
  563. endif # $(dot-config)
  564. #
  565. # Xtensa linker script cannot be preprocessed with -ansi because of
  566. # preprocessor operations on strings that don't make C identifiers.
  567. #
  568. ifeq ($(CONFIG_XTENSA),)
  569. LDPPFLAGS += -ansi
  570. endif
  571. ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
  572. KBUILD_CFLAGS += -Os
  573. else
  574. KBUILD_CFLAGS += -O2
  575. endif
  576. LTO_CFLAGS :=
  577. LTO_FINAL_LDFLAGS :=
  578. export LTO_CFLAGS LTO_FINAL_LDFLAGS
  579. ifdef CONFIG_LTO
  580. ifeq ($(cc-name),clang)
  581. LTO_CFLAGS += -flto
  582. LTO_FINAL_LDFLAGS += -flto
  583. AR = $(shell $(CC) -print-prog-name=llvm-ar)
  584. NM = $(shell $(CC) -print-prog-name=llvm-nm)
  585. else
  586. NPROC := $(shell nproc 2>/dev/null || echo 1)
  587. LTO_CFLAGS += -flto=$(NPROC)
  588. LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC)
  589. # use plugin aware tools
  590. AR = $(CROSS_COMPILE)gcc-ar
  591. NM = $(CROSS_COMPILE)gcc-nm
  592. endif
  593. CFLAGS_NON_EFI += $(LTO_CFLAGS)
  594. KBUILD_CFLAGS += $(LTO_CFLAGS)
  595. endif
  596. ifeq ($(CONFIG_STACKPROTECTOR),y)
  597. KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
  598. CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
  599. else
  600. KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
  601. endif
  602. KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
  603. # disable pointer signed / unsigned warnings in gcc 4.0
  604. KBUILD_CFLAGS += -Wno-pointer-sign
  605. # disable stringop warnings in gcc 8+
  606. KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
  607. KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
  608. KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
  609. KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
  610. # Enabled with W=2, disabled by default as noisy
  611. KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
  612. # change __FILE__ to the relative path from the srctree
  613. KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
  614. KBUILD_CFLAGS += -g
  615. # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
  616. # option to the assembler.
  617. KBUILD_AFLAGS += -g
  618. # Report stack usage if supported
  619. # ARC tools based on GCC 7.1 has an issue with stack usage
  620. # with naked functions, see commit message for more details
  621. ifndef CONFIG_ARC
  622. ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
  623. KBUILD_CFLAGS += -fstack-usage
  624. endif
  625. endif
  626. KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
  627. KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
  628. ifdef CONFIG_CC_IS_CLANG
  629. KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
  630. KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
  631. KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
  632. KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
  633. # Quiet clang warning: comparison of unsigned expression < 0 is always false
  634. KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
  635. # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
  636. # source of a reference will be _MergedGlobals and not on of the whitelisted names.
  637. # See modpost pattern 2
  638. KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
  639. KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
  640. endif
  641. # These warnings generated too much noise in a regular build.
  642. # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
  643. KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
  644. # Prohibit date/time macros, which would make the build non-deterministic
  645. KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
  646. include scripts/Makefile.extrawarn
  647. # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
  648. KBUILD_CPPFLAGS += $(KCPPFLAGS)
  649. KBUILD_AFLAGS += $(KAFLAGS)
  650. KBUILD_CFLAGS += $(KCFLAGS)
  651. KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
  652. # Use UBOOTINCLUDE when you must reference the include/ directory.
  653. # Needed to be compatible with the O= option
  654. UBOOTINCLUDE := \
  655. -Iinclude \
  656. $(if $(KBUILD_SRC), -I$(srctree)/include) \
  657. $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
  658. $(if $(CONFIG_HAS_THUMB2), \
  659. $(if $(CONFIG_CPU_V7M), \
  660. -I$(srctree)/arch/arm/thumb1/include), \
  661. -I$(srctree)/arch/arm/thumb1/include)) \
  662. -I$(srctree)/arch/$(ARCH)/include \
  663. -include $(srctree)/include/linux/kconfig.h
  664. NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
  665. # FIX ME
  666. cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  667. $(NOSTDINC_FLAGS)
  668. c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  669. #########################################################################
  670. # U-Boot objects....order is important (i.e. start must be first)
  671. HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  672. libs-$(CONFIG_API) += api/
  673. libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  674. libs-y += boot/
  675. libs-y += cmd/
  676. libs-y += common/
  677. libs-$(CONFIG_OF_EMBED) += dts/
  678. libs-y += env/
  679. libs-y += lib/
  680. libs-y += fs/
  681. libs-y += net/
  682. libs-y += disk/
  683. libs-y += drivers/
  684. libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
  685. libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
  686. libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
  687. libs-y += drivers/usb/cdns3/
  688. libs-y += drivers/usb/dwc3/
  689. libs-y += drivers/usb/common/
  690. libs-y += drivers/usb/emul/
  691. libs-y += drivers/usb/eth/
  692. libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
  693. libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
  694. libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
  695. libs-y += drivers/usb/host/
  696. libs-y += drivers/usb/mtu3/
  697. libs-y += drivers/usb/musb/
  698. libs-y += drivers/usb/musb-new/
  699. libs-y += drivers/usb/phy/
  700. libs-y += drivers/usb/ulpi/
  701. ifdef CONFIG_POST
  702. libs-y += post/
  703. endif
  704. libs-$(CONFIG_UNIT_TEST) += test/
  705. libs-$(CONFIG_UT_ENV) += test/env/
  706. libs-$(CONFIG_UT_OPTEE) += test/optee/
  707. libs-$(CONFIG_UT_OVERLAY) += test/overlay/
  708. libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  709. libs-y := $(sort $(libs-y))
  710. u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
  711. u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
  712. libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  713. u-boot-init := $(head-y)
  714. u-boot-main := $(libs-y)
  715. # Add GCC lib
  716. ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  717. PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  718. else
  719. PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
  720. endif
  721. PLATFORM_LIBS += $(PLATFORM_LIBGCC)
  722. ifdef CONFIG_CC_COVERAGE
  723. KBUILD_CFLAGS += --coverage
  724. PLATFORM_LIBGCC += -lgcov
  725. endif
  726. export PLATFORM_LIBS
  727. export PLATFORM_LIBGCC
  728. # Special flags for CPP when processing the linker script.
  729. # Pass the version down so we can handle backwards compatibility
  730. # on the fly.
  731. LDPPFLAGS += \
  732. -include $(srctree)/include/u-boot/u-boot.lds.h \
  733. -DCPUDIR=$(CPUDIR) \
  734. $(shell $(LD) --version | \
  735. sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
  736. #########################################################################
  737. #########################################################################
  738. ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
  739. BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
  740. else
  741. BOARD_SIZE_CHECK =
  742. endif
  743. ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
  744. SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
  745. else
  746. SPL_SIZE_CHECK =
  747. endif
  748. ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
  749. TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
  750. else
  751. TPL_SIZE_CHECK =
  752. endif
  753. # Statically apply RELA-style relocations (currently arm64 only)
  754. # This is useful for arm64 where static relocation needs to be performed on
  755. # the raw binary, but certain simulators only accept an ELF file (but don't
  756. # do the relocation).
  757. ifneq ($(CONFIG_STATIC_RELA),)
  758. # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
  759. quiet_cmd_static_rela = RELOC $@
  760. cmd_static_rela = \
  761. start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \
  762. end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \
  763. tools/relocate-rela $(3) $(4) $$start $$end
  764. else
  765. quiet_cmd_static_rela =
  766. cmd_static_rela =
  767. endif
  768. # Always append INPUTS so that arch config.mk's can add custom ones
  769. INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
  770. INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
  771. ifeq ($(CONFIG_SPL_FSL_PBL),y)
  772. INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
  773. else
  774. ifneq ($(CONFIG_NXP_ESBC), y)
  775. # For Secure Boot The Image needs to be signed and Header must also
  776. # be included. So The image has to be built explicitly
  777. INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
  778. endif
  779. endif
  780. INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
  781. ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
  782. INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
  783. else
  784. ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
  785. INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
  786. else
  787. INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
  788. endif
  789. endif
  790. INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
  791. # Allow omitting the .dtb output if it is not normally used
  792. INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb)
  793. ifeq ($(CONFIG_SPL_FRAMEWORK),y)
  794. INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
  795. endif
  796. INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb
  797. ifneq ($(CONFIG_SPL_TARGET),)
  798. INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
  799. endif
  800. INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
  801. INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
  802. INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
  803. # Generate this input file for binman
  804. ifeq ($(CONFIG_SPL),)
  805. INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
  806. endif
  807. # Add optional build target if defined in board/cpu/soc headers
  808. ifneq ($(CONFIG_BUILD_TARGET),)
  809. INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
  810. endif
  811. ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
  812. INPUTS-y += init_sp_bss_offset_check
  813. endif
  814. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  815. INPUTS-y += u-boot-with-dtb.bin
  816. endif
  817. ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
  818. # On ARM64 this target is produced by binman so we don't need this dep
  819. ifeq ($(CONFIG_ARM64),y)
  820. ifeq ($(CONFIG_SPL),y)
  821. # TODO: Get binman to generate this too
  822. INPUTS-y += u-boot-rockchip.bin
  823. endif
  824. else
  825. ifeq ($(CONFIG_SPL),y)
  826. # Generate these inputs for binman which will create the output files
  827. INPUTS-y += idbloader.img u-boot.img
  828. endif
  829. endif
  830. endif
  831. INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
  832. $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
  833. $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
  834. LDFLAGS_u-boot += $(LDFLAGS_FINAL)
  835. # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
  836. LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
  837. # ld.lld support
  838. LDFLAGS_u-boot += -z notext
  839. LDFLAGS_u-boot += --build-id=none
  840. ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
  841. LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
  842. endif
  843. # insure the checker run with the right endianness
  844. CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
  845. # the checker needs the correct machine size
  846. CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
  847. # Normally we fill empty space with 0xff
  848. quiet_cmd_objcopy = OBJCOPY $@
  849. cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
  850. $(OBJCOPYFLAGS_$(@F)) $< $@
  851. # Provide a version which does not do this, for use by EFI
  852. quiet_cmd_zobjcopy = OBJCOPY $@
  853. cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
  854. quiet_cmd_efipayload = OBJCOPY $@
  855. cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
  856. MKIMAGEOUTPUT ?= /dev/null
  857. quiet_cmd_mkimage = MKIMAGE $@
  858. cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
  859. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  860. quiet_cmd_mkfitimage = MKIMAGE $@
  861. cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
  862. -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
  863. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  864. quiet_cmd_cat = CAT $@
  865. cmd_cat = cat $(filter-out $(PHONY), $^) > $@
  866. append = cat $(filter-out $< $(PHONY), $^) >> $@
  867. quiet_cmd_pad_cat = CAT $@
  868. cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
  869. quiet_cmd_lzma = LZMA $@
  870. cmd_lzma = lzma -c -z -k -9 $< > $@
  871. cfg: u-boot.cfg
  872. quiet_cmd_cfgcheck = CFGCHK $2
  873. cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
  874. $(srctree)/scripts/config_whitelist.txt $(srctree)
  875. quiet_cmd_ofcheck = OFCHK $2
  876. cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
  877. $(srctree)/scripts/of_allowlist.txt
  878. # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
  879. got = $(foreach cfg,$(1),$($(cfg)))
  880. # expected value 'y for each one
  881. expect = $(foreach cfg,$(1),y)
  882. # Show a deprecation message
  883. # Args:
  884. # 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
  885. # 2: Name of component (e.g . "Ethernet drivers")
  886. # 3: Release deadline (e.g. "v202.07")
  887. # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
  888. # Note: Script avoids bash construct, hence the strange double 'if'
  889. # (patches welcome!)
  890. define deprecated
  891. @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
  892. echo >&2 "===================== WARNING ======================"; \
  893. echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
  894. echo >&2 "for $(2)). Please update the board to use"; \
  895. echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
  896. echo >&2 "update by the deadline may result in board removal."; \
  897. echo >&2 "See doc/driver-model/migration.rst for more info."; \
  898. echo >&2 "===================================================="; \
  899. fi; fi
  900. endef
  901. PHONY += inputs
  902. inputs: $(INPUTS-y)
  903. all: .binman_stamp inputs
  904. ifeq ($(CONFIG_BINMAN),y)
  905. $(call if_changed,binman)
  906. endif
  907. # Timestamp file to make sure that binman always runs
  908. .binman_stamp: FORCE
  909. @touch $@
  910. ifeq ($(CONFIG_DEPRECATED),y)
  911. $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
  912. endif
  913. ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y)
  914. @echo >&2 "===================== WARNING ======================"
  915. @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
  916. @echo >&2 "be used for debugging purposes. Please use"
  917. @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
  918. @echo >&2 "See doc/README.fdt-control for more info."
  919. @echo >&2 "===================================================="
  920. endif
  921. ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
  922. @echo >&2 "===================== WARNING ======================"
  923. @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
  924. @echo >&2 "to binman instead, to avoid the proliferation of"
  925. @echo >&2 "arch-specific scripts with no tests."
  926. @echo >&2 "===================================================="
  927. endif
  928. ifneq ($(CONFIG_DM),y)
  929. @echo >&2 "===================== WARNING ======================"
  930. @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
  931. @echo >&2 "compulsory starting with the v2020.01 release."
  932. @echo >&2 "Failure to update may result in board removal."
  933. @echo >&2 "See doc/driver-model/migration.rst for more info."
  934. @echo >&2 "===================================================="
  935. endif
  936. $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
  937. $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
  938. $(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET))
  939. $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
  940. $(call deprecated,CONFIG_DM_KEYBOARD,Keyboard drivers,v2022.10,$(CONFIG_KEYBOARD))
  941. @# CONFIG_SYS_TIMER_RATE has brackets in it for some boards which
  942. @# confuses this rule. Use if() to send just a single character which
  943. @# is enable to tell 'deprecated' that one of these symbols exists
  944. $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CONFIG_SYS_TIMER_RATE)$(CONFIG_SYS_TIMER_COUNTER)),x))
  945. $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL))
  946. $(call deprecated,CONFIG_DM_SCSI,SCSI drivers,v2023.04,$(CONFIG_SCSI))
  947. @# Check that this build does not use CONFIG options that we do not
  948. @# know about unless they are in Kconfig. All the existing CONFIG
  949. @# options are whitelisted, so new ones should not be added.
  950. $(call cmd,cfgcheck,u-boot.cfg)
  951. @# Check that this build does not override OF_HAS_PRIOR_STAGE by
  952. @# disabling OF_BOARD.
  953. $(call cmd,ofcheck,$(KCONFIG_CONFIG))
  954. PHONY += dtbs
  955. dtbs: dts/dt.dtb
  956. @:
  957. dts/dt.dtb: u-boot
  958. $(Q)$(MAKE) $(build)=dts dtbs
  959. quiet_cmd_copy = COPY $@
  960. cmd_copy = cp $< $@
  961. ifeq ($(CONFIG_MULTI_DTB_FIT),y)
  962. ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
  963. FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
  964. else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
  965. FINAL_DTB_CONTAINER = fit-dtb.blob.gz
  966. else
  967. FINAL_DTB_CONTAINER = fit-dtb.blob
  968. endif
  969. fit-dtb.blob.gz: fit-dtb.blob
  970. @gzip -kf9 $< > $@
  971. fit-dtb.blob.lzo: fit-dtb.blob
  972. @lzop -f9 $< > $@
  973. fit-dtb.blob: dts/dt.dtb FORCE
  974. $(call if_changed,mkimage)
  975. ifneq ($(SOURCE_DATE_EPOCH),)
  976. touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
  977. chmod 0600 fit-dtb.blob
  978. endif
  979. MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
  980. -a 0 -e 0 -E \
  981. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
  982. MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
  983. ifneq ($(EXT_DTB),)
  984. u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
  985. $(call if_changed,cat)
  986. else
  987. u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
  988. $(call if_changed,cat)
  989. endif
  990. u-boot.bin: u-boot-fit-dtb.bin FORCE
  991. $(call if_changed,copy)
  992. u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
  993. $(call if_changed,cat)
  994. else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.)
  995. u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
  996. $(call if_changed,cat)
  997. u-boot.bin: u-boot-dtb.bin FORCE
  998. $(call if_changed,copy)
  999. else
  1000. u-boot.bin: u-boot-nodtb.bin FORCE
  1001. $(call if_changed,copy)
  1002. endif
  1003. # we call Makefile in arch/arm/mach-imx which
  1004. # has targets which are dependent on targets defined
  1005. # here. make could not resolve them and we must ensure
  1006. # that they are finished before calling imx targets
  1007. ifeq ($(CONFIG_MULTI_DTB_FIT),y)
  1008. IMX_DEPS = u-boot-fit-dtb.bin
  1009. endif
  1010. %.imx: $(IMX_DEPS) %.bin
  1011. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1012. $(BOARD_SIZE_CHECK)
  1013. %.vyb: %.imx
  1014. $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
  1015. quiet_cmd_copy = COPY $@
  1016. cmd_copy = cp $< $@
  1017. u-boot.dtb: dts/dt.dtb
  1018. $(call cmd,copy)
  1019. OBJCOPYFLAGS_u-boot.hex := -O ihex
  1020. OBJCOPYFLAGS_u-boot.srec := -O srec
  1021. u-boot.hex u-boot.srec: u-boot FORCE
  1022. $(call if_changed,objcopy)
  1023. OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
  1024. u-boot-elf.srec: u-boot.elf FORCE
  1025. $(call if_changed,objcopy)
  1026. OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
  1027. spl/u-boot-spl.srec: spl/u-boot-spl FORCE
  1028. $(call if_changed,objcopy)
  1029. %.scif: %.srec
  1030. $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
  1031. OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
  1032. $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
  1033. $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
  1034. binary_size_check: u-boot-nodtb.bin FORCE
  1035. @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
  1036. map_size=$(shell cat u-boot.map | \
  1037. awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
  1038. | sed 's/0X//g' \
  1039. | bc); \
  1040. if [ "" != "$$map_size" ]; then \
  1041. if test $$map_size -ne $$file_size; then \
  1042. echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
  1043. echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
  1044. exit 1; \
  1045. fi; \
  1046. fi
  1047. ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
  1048. ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
  1049. subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
  1050. else
  1051. subtract_sys_malloc_f_len = true
  1052. endif
  1053. # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
  1054. # so low that the DTB could probably use 90%+ of the available space, for
  1055. # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
  1056. # safe for now and tweak this later if space becomes tight.
  1057. # A rejected alternative would be to check that some absolute minimum stack
  1058. # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
  1059. # deliberately build-specific, to take account of build-to-build stack usage
  1060. # differences due to different feature sets, there is no common absolute value
  1061. # to check against.
  1062. init_sp_bss_offset_check: u-boot.dtb FORCE
  1063. @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
  1064. space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
  1065. $(subtract_sys_malloc_f_len) ; \
  1066. quarter_space=$$(($${space} / 4)) ; \
  1067. if [ $${dtb_size} -gt $${quarter_space} ]; then \
  1068. echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
  1069. echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
  1070. exit 1 ; \
  1071. fi
  1072. endif
  1073. shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
  1074. quiet_cmd_objcopy_uboot = OBJCOPY $@
  1075. ifdef cmd_static_rela
  1076. cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; }
  1077. else
  1078. cmd_objcopy_uboot = $(cmd_objcopy)
  1079. endif
  1080. u-boot-nodtb.bin: u-boot FORCE
  1081. $(call if_changed,objcopy_uboot)
  1082. $(BOARD_SIZE_CHECK)
  1083. u-boot.ldr: u-boot
  1084. $(CREATE_LDR_ENV)
  1085. $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
  1086. $(BOARD_SIZE_CHECK)
  1087. # binman
  1088. # ---------------------------------------------------------------------------
  1089. # Use 'make BINMAN_DEBUG=1' to enable debugging
  1090. # Use 'make BINMAN_VERBOSE=3' to set vebosity level
  1091. default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
  1092. quiet_cmd_binman = BINMAN $@
  1093. cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
  1094. $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \
  1095. --toolpath $(objtree)/tools \
  1096. $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
  1097. build -u -d u-boot.dtb -O . -m --allow-missing \
  1098. --fake-ext-blobs \
  1099. -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
  1100. -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
  1101. $(foreach f,$(BINMAN_INDIRS),-I $(f)) \
  1102. -a atf-bl31-path=${BL31} \
  1103. -a opensbi-path=${OPENSBI} \
  1104. -a default-dt=$(default_dt) \
  1105. -a scp-path=$(SCP) \
  1106. -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
  1107. -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
  1108. -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
  1109. -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
  1110. $(BINMAN_$(@F))
  1111. OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
  1112. OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
  1113. u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
  1114. $(call if_changed,objcopy)
  1115. #
  1116. # U-Boot entry point, needed for booting of full-blown U-Boot
  1117. # from the SPL U-Boot version.
  1118. #
  1119. ifndef CONFIG_SYS_UBOOT_START
  1120. CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
  1121. endif
  1122. # Boards with more complex image requirements can provide an .its source file
  1123. # or a generator script
  1124. # NOTE: Please do not use this. We are migrating away from Makefile rules to use
  1125. # binman instead.
  1126. ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
  1127. U_BOOT_ITS := u-boot.its
  1128. $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
  1129. $(call if_changed,copy)
  1130. else
  1131. ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
  1132. U_BOOT_ITS := u-boot.its
  1133. ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
  1134. U_BOOT_ITS_DEPS += u-boot
  1135. endif
  1136. $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
  1137. $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
  1138. $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
  1139. endif
  1140. endif
  1141. ifdef CONFIG_SPL_LOAD_FIT
  1142. MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
  1143. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  1144. -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
  1145. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
  1146. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \
  1147. $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
  1148. $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
  1149. else
  1150. MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
  1151. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  1152. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  1153. MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
  1154. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  1155. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  1156. u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
  1157. endif
  1158. MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
  1159. # Some boards have the kwbimage.cfg file written in advance, while some
  1160. # other boards generate it on the fly during the build in the build tree.
  1161. # Let's check if the file exists in the build tree first, otherwise we
  1162. # fall back to use the one in the source tree.
  1163. KWD_CONFIG_FILE = $(shell \
  1164. if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
  1165. echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
  1166. else \
  1167. echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
  1168. fi)
  1169. MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
  1170. -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
  1171. MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
  1172. -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
  1173. $(if $(KEYDIR),-k $(KEYDIR))
  1174. MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
  1175. -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
  1176. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  1177. UBOOT_BIN := u-boot-with-dtb.bin
  1178. else
  1179. UBOOT_BIN := u-boot.bin
  1180. endif
  1181. MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
  1182. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
  1183. -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
  1184. u-boot.bin.lzma: u-boot.bin FORCE
  1185. $(call if_changed,lzma)
  1186. u-boot-lzma.img: u-boot.bin.lzma FORCE
  1187. $(call if_changed,mkimage)
  1188. u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
  1189. $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
  1190. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
  1191. ,$(UBOOT_BIN)) FORCE
  1192. $(call if_changed,mkimage)
  1193. $(BOARD_SIZE_CHECK)
  1194. ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
  1195. MKIMAGEFLAGS_u-boot.itb =
  1196. else
  1197. MKIMAGEFLAGS_u-boot.itb = -E
  1198. endif
  1199. MKIMAGEFLAGS_u-boot.itb += -B 0x8
  1200. ifdef U_BOOT_ITS
  1201. u-boot.itb: u-boot-nodtb.bin \
  1202. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
  1203. $(U_BOOT_ITS) FORCE
  1204. $(call if_changed,mkfitimage)
  1205. $(BOARD_SIZE_CHECK)
  1206. endif
  1207. u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
  1208. $(call if_changed,mkimage)
  1209. u-boot.sha1: u-boot.bin
  1210. tools/ubsha1 u-boot.bin
  1211. u-boot.dis: u-boot
  1212. $(OBJDUMP) -d $< > $@
  1213. ifneq ($(CONFIG_SPL_PAYLOAD),)
  1214. SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
  1215. else
  1216. SPL_PAYLOAD := u-boot.bin
  1217. endif
  1218. SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
  1219. OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
  1220. --pad-to=$(CONFIG_SPL_PAD_TO)
  1221. u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
  1222. $(call if_changed,pad_cat)
  1223. ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
  1224. # TPL + SPL
  1225. ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
  1226. MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
  1227. tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
  1228. $(call if_changed,mkimage)
  1229. idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
  1230. $(call if_changed,cat)
  1231. else
  1232. MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
  1233. idbloader.img: spl/u-boot-spl.bin FORCE
  1234. $(call if_changed,mkimage)
  1235. endif
  1236. ifeq ($(CONFIG_ARM64),y)
  1237. OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
  1238. --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
  1239. u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
  1240. $(call if_changed,pad_cat)
  1241. endif # CONFIG_ARM64
  1242. endif # CONFIG_ARCH_ROCKCHIP
  1243. ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
  1244. MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
  1245. lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
  1246. $(call if_changed,mkimage)
  1247. OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  1248. lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
  1249. $(call if_changed,objcopy)
  1250. OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  1251. lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
  1252. $(call if_changed,objcopy)
  1253. lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
  1254. $(call if_changed,cat)
  1255. endif
  1256. OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
  1257. --pad-to=$(CONFIG_TPL_PAD_TO)
  1258. tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
  1259. $(call if_changed,pad_cat)
  1260. SPL: spl/u-boot-spl.bin FORCE
  1261. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1262. ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
  1263. ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
  1264. u-boot.cnt: u-boot.bin FORCE
  1265. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1266. flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
  1267. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1268. else
  1269. ifeq ($(CONFIG_BINMAN),y)
  1270. flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
  1271. $(call if_changed,binman)
  1272. else
  1273. flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
  1274. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1275. endif
  1276. endif
  1277. endif
  1278. u-boot.uim: u-boot.bin FORCE
  1279. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1280. u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
  1281. $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
  1282. MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
  1283. u-boot.ubl: u-boot-with-spl.bin FORCE
  1284. $(call if_changed,mkimage)
  1285. MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
  1286. $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
  1287. -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
  1288. spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
  1289. $(call if_changed,mkimage)
  1290. OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
  1291. u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
  1292. $(call if_changed,pad_cat)
  1293. u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
  1294. $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
  1295. u-boot.sb: u-boot.bin spl/u-boot-spl.bin
  1296. $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
  1297. MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
  1298. -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
  1299. spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
  1300. $(call if_changed,mkimage)
  1301. ifneq ($(CONFIG_ARCH_SOCFPGA),)
  1302. quiet_cmd_gensplx4 = GENSPLX4 $@
  1303. cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
  1304. --pad-to=$(CONFIG_SPL_PAD_TO) \
  1305. spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \
  1306. cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
  1307. spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
  1308. spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
  1309. $(call if_changed,gensplx4)
  1310. quiet_cmd_socboot = SOCBOOT $@
  1311. cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
  1312. u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
  1313. $(call if_changed,socboot)
  1314. quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
  1315. cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
  1316. cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
  1317. spl/u-boot-spl.sfp spl/u-boot-spl.pad \
  1318. spl/u-boot-spl.sfp spl/u-boot-spl.pad \
  1319. spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
  1320. { rm -f $@ spl/u-boot-spl.pad; false; }
  1321. u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
  1322. $(call if_changed,gensplpadx4)
  1323. quiet_cmd_socnandboot = SOCNANDBOOT $@
  1324. cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
  1325. u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
  1326. $(call if_changed,socnandboot)
  1327. endif
  1328. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  1329. u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
  1330. $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
  1331. $(call if_changed,binman)
  1332. ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
  1333. OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
  1334. u-boot-br.bin: u-boot FORCE
  1335. $(call if_changed,objcopy)
  1336. endif
  1337. endif
  1338. quiet_cmd_ldr = LD $@
  1339. cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
  1340. $(filter-out FORCE,$^) -o $@
  1341. ifdef CONFIG_X86
  1342. OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
  1343. u-boot-x86-start16.bin: u-boot FORCE
  1344. $(call if_changed,objcopy)
  1345. OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
  1346. u-boot-x86-reset16.bin: u-boot FORCE
  1347. $(call if_changed,objcopy)
  1348. endif # CONFIG_X86
  1349. OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
  1350. u-boot-app.efi: u-boot FORCE
  1351. $(call if_changed,zobjcopy)
  1352. u-boot.bin.o: u-boot.bin FORCE
  1353. $(call if_changed,efipayload)
  1354. u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
  1355. $(call if_changed_dep,cpp_lds)
  1356. # Rule to link the EFI payload which contains a stub and a U-Boot binary
  1357. quiet_cmd_u-boot_payload ?= LD $@
  1358. cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
  1359. -T u-boot-payload.lds arch/x86/cpu/call32.o \
  1360. lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
  1361. $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
  1362. u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
  1363. $(call if_changed,u-boot_payload)
  1364. OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
  1365. u-boot-payload.efi: u-boot-payload FORCE
  1366. $(call if_changed,zobjcopy)
  1367. u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
  1368. $(call if_changed,cat)
  1369. #Add a target to create boot binary having SPL binary in PBI format
  1370. #concatenated with u-boot binary. It is need by PowerPC SoC having
  1371. #internal SRAM <= 512KB.
  1372. MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
  1373. -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
  1374. -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
  1375. spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
  1376. $(call if_changed,mkimage)
  1377. ifeq ($(ARCH),arm)
  1378. UBOOT_BINLOAD := u-boot.img
  1379. else
  1380. ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
  1381. UBOOT_BINLOAD := u-boot-with-dtb.bin
  1382. else
  1383. UBOOT_BINLOAD := u-boot.bin
  1384. endif
  1385. endif
  1386. OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
  1387. --gap-fill=0xff
  1388. u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
  1389. $(call if_changed,pad_cat)
  1390. # PPC4xx needs the SPL at the end of the image, since the reset vector
  1391. # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
  1392. # and need to introduce a new build target with the full blown U-Boot
  1393. # at the start padded up to the start of the SPL image. And then concat
  1394. # the SPL image to the end.
  1395. OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
  1396. --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
  1397. u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
  1398. $(call if_changed,pad_cat)
  1399. quiet_cmd_u-boot-elf ?= LD $@
  1400. cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
  1401. -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
  1402. -Ttext=$(CONFIG_SYS_TEXT_BASE)
  1403. u-boot.elf: u-boot.bin u-boot-elf.lds
  1404. $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
  1405. $(call if_changed,u-boot-elf)
  1406. u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
  1407. $(call if_changed_dep,cpp_lds)
  1408. # MediaTek's ARM-based u-boot needs a header to contains its load address
  1409. # which is parsed by the BootROM.
  1410. # If the SPL build is enabled, the header will be added to the spl binary,
  1411. # and the spl binary and the u-boot.img will be combined into one file.
  1412. # Otherwise the header will be added to the u-boot.bin directly.
  1413. ifeq ($(CONFIG_SPL),y)
  1414. spl/u-boot-spl-mtk.bin: spl/u-boot-spl
  1415. u-boot-mtk.bin: u-boot-with-spl.bin
  1416. $(call if_changed,copy)
  1417. else
  1418. MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
  1419. -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
  1420. -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
  1421. u-boot-mtk.bin: u-boot.bin FORCE
  1422. $(call if_changed,mkimage)
  1423. endif
  1424. quiet_cmd_endian_swap = SWAP $@
  1425. cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
  1426. u-boot-swap.bin: u-boot.bin FORCE
  1427. $(call if_changed,endian_swap)
  1428. ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
  1429. # Generate linker list symbols references to force compiler to not optimize
  1430. # them away when compiling with LTO
  1431. ifdef CONFIG_LTO
  1432. u-boot-keep-syms-lto := keep-syms-lto.o
  1433. u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
  1434. quiet_cmd_keep_syms_lto = KSL $@
  1435. cmd_keep_syms_lto = \
  1436. $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
  1437. quiet_cmd_keep_syms_lto_cc = KSLCC $@
  1438. cmd_keep_syms_lto_cc = \
  1439. $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
  1440. $(u-boot-keep-syms-lto_c): $(u-boot-main)
  1441. $(call if_changed,keep_syms_lto)
  1442. $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
  1443. $(call if_changed,keep_syms_lto_cc)
  1444. else
  1445. u-boot-keep-syms-lto :=
  1446. endif
  1447. # Rule to link u-boot
  1448. # May be overridden by arch/$(ARCH)/config.mk
  1449. ifdef CONFIG_LTO
  1450. quiet_cmd_u-boot__ ?= LTO $@
  1451. cmd_u-boot__ ?= \
  1452. $(CC) -nostdlib -nostartfiles \
  1453. $(LTO_FINAL_LDFLAGS) $(c_flags) \
  1454. $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \
  1455. -T u-boot.lds $(u-boot-init) \
  1456. -Wl,--whole-archive \
  1457. $(u-boot-main) \
  1458. $(u-boot-keep-syms-lto) \
  1459. $(PLATFORM_LIBS) \
  1460. -Wl,--no-whole-archive \
  1461. -Wl,-Map,u-boot.map; \
  1462. $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
  1463. else
  1464. # Note: Linking efi-x86_app64 causes a segfault in the linker at present
  1465. # when using x86_64-linux-gnu-ld.bfd
  1466. # For now, disable --whole-archive which makes things link, although not
  1467. # correctly
  1468. quiet_cmd_u-boot__ ?= LD $@
  1469. cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
  1470. -T u-boot.lds $(u-boot-init) \
  1471. --whole-archive \
  1472. $(u-boot-main) \
  1473. --no-whole-archive \
  1474. $(PLATFORM_LIBS) -Map u-boot.map; \
  1475. $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
  1476. endif
  1477. quiet_cmd_smap = GEN common/system_map.o
  1478. cmd_smap = \
  1479. smap=`$(call SYSTEM_MAP,u-boot) | \
  1480. awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
  1481. $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
  1482. -c $(srctree)/common/system_map.c -o common/system_map.o
  1483. u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
  1484. +$(call if_changed,u-boot__)
  1485. ifeq ($(CONFIG_KALLSYMS),y)
  1486. $(call cmd,smap)
  1487. $(call cmd,u-boot__) common/system_map.o
  1488. endif
  1489. ifeq ($(CONFIG_RISCV),y)
  1490. @tools/prelink-riscv $@ 0
  1491. endif
  1492. quiet_cmd_sym ?= SYM $@
  1493. cmd_sym ?= $(OBJDUMP) -t $< > $@
  1494. u-boot.sym: u-boot FORCE
  1495. $(call if_changed,sym)
  1496. # Environment processing
  1497. # ---------------------------------------------------------------------------
  1498. # Directory where we expect the .env file, if it exists
  1499. ENV_DIR := $(srctree)/board/$(BOARDDIR)
  1500. # Basename of .env file, stripping quotes
  1501. ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%)
  1502. # Filename of .env file
  1503. ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env
  1504. # Default filename, if CONFIG_ENV_SOURCE_FILE is empty
  1505. ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env
  1506. # Select between the CONFIG_ENV_SOURCE_FILE and the default one
  1507. ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD)))
  1508. # Run the environment text file through the preprocessor, but only if it is
  1509. # non-empty, to save time and possible build errors if something is wonky with
  1510. # the board
  1511. quiet_cmd_gen_envp = ENVP $@
  1512. cmd_gen_envp = \
  1513. if [ -s "$(ENV_FILE)" ]; then \
  1514. $(CPP) -P $(CFLAGS) -x assembler-with-cpp -D__ASSEMBLY__ \
  1515. -D__UBOOT_CONFIG__ \
  1516. -I . -I include -I $(srctree)/include \
  1517. -include linux/kconfig.h -include include/config.h \
  1518. -I$(srctree)/arch/$(ARCH)/include \
  1519. $< -o $@; \
  1520. else \
  1521. touch $@ ; \
  1522. fi
  1523. include/generated/env.in: include/generated/env.txt FORCE
  1524. $(call cmd,gen_envp)
  1525. # Regenerate the environment if it changes
  1526. # We use 'wildcard' since the file is not required to exist (at present), in
  1527. # which case we don't want this dependency, but instead should create an empty
  1528. # file
  1529. # This rule is useful since it shows the source file for the environment
  1530. quiet_cmd_envc = ENVC $@
  1531. cmd_envc = \
  1532. if [ -f "$<" ]; then \
  1533. cat $< > $@; \
  1534. elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
  1535. echo "Missing file $(ENV_FILE_CFG)"; \
  1536. else \
  1537. touch $@ ; \
  1538. fi
  1539. include/generated/env.txt: $(wildcard $(ENV_FILE)) FORCE
  1540. $(call cmd,envc)
  1541. # Write out the resulting environment, converted to a C string
  1542. quiet_cmd_gen_envt = ENVT $@
  1543. cmd_gen_envt = \
  1544. awk -f $(srctree)/scripts/env2string.awk $< >$@
  1545. $(env_h): include/generated/env.in
  1546. $(call cmd,gen_envt)
  1547. # ---------------------------------------------------------------------------
  1548. # The actual objects are generated when descending,
  1549. # make sure no implicit rule kicks in
  1550. $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
  1551. # Handle descending into subdirectories listed in $(u-boot-dirs)
  1552. # Preset locale variables to speed up the build process. Limit locale
  1553. # tweaks to this spot to avoid wrong language settings when running
  1554. # make menuconfig etc.
  1555. # Error messages still appears in the original language
  1556. PHONY += $(u-boot-dirs)
  1557. $(u-boot-dirs): prepare scripts
  1558. $(Q)$(MAKE) $(build)=$@
  1559. tools: prepare
  1560. # The "tools" are needed early
  1561. $(filter-out tools, $(u-boot-dirs)): tools
  1562. # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
  1563. # is "yes"), so compile examples after U-Boot is compiled.
  1564. examples: $(filter-out examples, $(u-boot-dirs))
  1565. define filechk_uboot.release
  1566. echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
  1567. endef
  1568. # Store (new) UBOOTRELEASE string in include/config/uboot.release
  1569. include/config/uboot.release: include/config/auto.conf FORCE
  1570. $(call filechk,uboot.release)
  1571. # Things we need to do before we recursively start building the kernel
  1572. # or the modules are listed in "prepare".
  1573. # A multi level approach is used. prepareN is processed before prepareN-1.
  1574. # archprepare is used in arch Makefiles and when processed asm symlink,
  1575. # version.h and scripts_basic is processed / created.
  1576. # Listed in dependency order
  1577. PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
  1578. # prepare3 is used to check if we are building in a separate output directory,
  1579. # and if so do:
  1580. # 1) Check that make has not been executed in the kernel src $(srctree)
  1581. prepare3: include/config/uboot.release
  1582. ifneq ($(KBUILD_SRC),)
  1583. @$(kecho) ' Using $(srctree) as source for U-Boot'
  1584. $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
  1585. echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
  1586. echo >&2 " in the '$(srctree)' directory.";\
  1587. /bin/false; \
  1588. fi;
  1589. endif
  1590. # prepare2 creates a makefile if using a separate output directory
  1591. prepare2: prepare3 outputmakefile cfg
  1592. prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \
  1593. include/config/auto.conf
  1594. ifeq ($(wildcard $(LDSCRIPT)),)
  1595. @echo >&2 " Could not find linker script."
  1596. @/bin/false
  1597. endif
  1598. ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
  1599. prepare1: $(defaultenv_h)
  1600. envtools: $(defaultenv_h)
  1601. endif
  1602. archprepare: prepare1 scripts_basic
  1603. prepare0: archprepare FORCE
  1604. $(Q)$(MAKE) $(build)=.
  1605. # All the preparing..
  1606. prepare: prepare0
  1607. # Generate some files
  1608. # ---------------------------------------------------------------------------
  1609. # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
  1610. define filechk_version.h
  1611. (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
  1612. echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
  1613. echo \#define U_BOOT_VERSION_NUM $(VERSION); \
  1614. echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
  1615. sed -e "s/^0*//"); \
  1616. echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
  1617. echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
  1618. endef
  1619. # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
  1620. # The BSD date on the other hand behaves different and would produce errors
  1621. # with the misused '-d' switch. Respect that and search a working date with
  1622. # well known pre- and suffixes for the GNU variant of date.
  1623. define filechk_timestamp.h
  1624. (if test -n "$${SOURCE_DATE_EPOCH}"; then \
  1625. SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
  1626. DATE=""; \
  1627. for date in gdate date.gnu date; do \
  1628. $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
  1629. done; \
  1630. if test -n "$${DATE}"; then \
  1631. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
  1632. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
  1633. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
  1634. LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
  1635. else \
  1636. return 42; \
  1637. fi; \
  1638. else \
  1639. LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
  1640. LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
  1641. LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
  1642. LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
  1643. fi)
  1644. endef
  1645. define filechk_defaultenv.h
  1646. ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
  1647. tr '\n' '\0' | \
  1648. sed -e 's/\\\x0\s*//g' | \
  1649. xxd -i ; )
  1650. endef
  1651. define filechk_dt.h
  1652. (if test -n "$${DEVICE_TREE}"; then \
  1653. echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
  1654. else \
  1655. echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
  1656. fi)
  1657. endef
  1658. $(version_h): include/config/uboot.release FORCE
  1659. $(call filechk,version.h)
  1660. $(timestamp_h): $(srctree)/Makefile FORCE
  1661. $(call filechk,timestamp.h)
  1662. $(dt_h): $(srctree)/Makefile FORCE
  1663. $(call filechk,dt.h)
  1664. $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
  1665. $(call filechk,defaultenv.h)
  1666. # ---------------------------------------------------------------------------
  1667. # Devicetree files
  1668. ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
  1669. dtstree := arch/$(SRCARCH)/boot/dts
  1670. endif
  1671. ifneq ($(dtstree),)
  1672. %.dtb: prepare3 scripts_dtc
  1673. $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
  1674. PHONY += dtbs dtbs_install
  1675. dtbs: prepare3 scripts_dtc
  1676. $(Q)$(MAKE) $(build)=$(dtstree)
  1677. dtbs_install:
  1678. $(Q)$(MAKE) $(dtbinst)=$(dtstree)
  1679. ifdef CONFIG_OF_EARLY_FLATTREE
  1680. all: dtbs
  1681. endif
  1682. endif
  1683. # Check dtc and pylibfdt, if DTC is provided, else build them
  1684. PHONY += scripts_dtc
  1685. scripts_dtc: scripts_basic
  1686. $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \
  1687. $(MAKE) $(build)=scripts/dtc; \
  1688. else \
  1689. if ! $(DTC) -v >/dev/null; then \
  1690. echo '*** Failed to check dtc version: $(DTC)'; \
  1691. false; \
  1692. else \
  1693. if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \
  1694. echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \
  1695. false; \
  1696. else \
  1697. if [ -n "$(CONFIG_PYLIBFDT)" ]; then \
  1698. if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \
  1699. echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \
  1700. false; \
  1701. fi; \
  1702. fi; \
  1703. fi; \
  1704. fi; \
  1705. fi
  1706. # ---------------------------------------------------------------------------
  1707. quiet_cmd_cpp_lds = LDS $@
  1708. cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
  1709. -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
  1710. u-boot.lds: $(LDSCRIPT) prepare FORCE
  1711. $(call if_changed_dep,cpp_lds)
  1712. spl/u-boot-spl.bin: spl/u-boot-spl
  1713. @:
  1714. $(SPL_SIZE_CHECK)
  1715. spl/u-boot-spl-dtb.bin: spl/u-boot-spl
  1716. @:
  1717. spl/u-boot-spl-dtb.hex: spl/u-boot-spl
  1718. @:
  1719. spl/u-boot-spl: tools prepare \
  1720. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
  1721. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
  1722. $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
  1723. spl/sunxi-spl.bin: spl/u-boot-spl
  1724. @:
  1725. spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
  1726. @:
  1727. spl/u-boot-spl.sfp: spl/u-boot-spl
  1728. @:
  1729. spl/boot.bin: spl/u-boot-spl
  1730. @:
  1731. tpl/u-boot-tpl.bin: tools prepare \
  1732. $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
  1733. $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
  1734. $(TPL_SIZE_CHECK)
  1735. TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
  1736. FIND := find
  1737. FINDFLAGS := -L
  1738. tags ctags:
  1739. ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
  1740. -name '*.[chS]' -print`
  1741. ln -s ctags tags
  1742. etags:
  1743. etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
  1744. -name '*.[chS]' -print`
  1745. cscope:
  1746. $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
  1747. cscope.files
  1748. @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
  1749. grep -xvf - cscope.files > cscope.files.no-symlinks; \
  1750. mv cscope.files.no-symlinks cscope.files
  1751. cscope -b -q -k
  1752. SYSTEM_MAP = \
  1753. $(NM) $1 | \
  1754. grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
  1755. LC_ALL=C sort
  1756. System.map: u-boot
  1757. @$(call SYSTEM_MAP,$<) > $@
  1758. #########################################################################
  1759. # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
  1760. # R_AARCH64_RELATIVE (64-bit).
  1761. checkarmreloc: u-boot
  1762. @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
  1763. grep R_A | sort -u`"; \
  1764. if test "$$RELOC" != "R_ARM_RELATIVE" -a \
  1765. "$$RELOC" != "R_AARCH64_RELATIVE"; then \
  1766. echo "$< contains unexpected relocations: $$RELOC"; \
  1767. false; \
  1768. fi
  1769. tools/version.h: include/version.h
  1770. $(Q)mkdir -p $(dir $@)
  1771. $(call if_changed,copy)
  1772. envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
  1773. $(Q)$(MAKE) $(build)=tools/env
  1774. tools-only: export TOOLS_ONLY=y
  1775. tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
  1776. $(Q)$(MAKE) $(build)=tools
  1777. tools-all: export HOST_TOOLS_ALL=y
  1778. tools-all: envtools tools ;
  1779. cross_tools: export CROSS_BUILD_TOOLS=y
  1780. cross_tools: tools ;
  1781. .PHONY : CHANGELOG
  1782. CHANGELOG:
  1783. git log --no-merges U-Boot-1_1_5.. | \
  1784. unexpand -a | sed -e 's/\s\s*$$//' > $@
  1785. #########################################################################
  1786. ###
  1787. # Cleaning is done on three levels.
  1788. # make clean Delete most generated files
  1789. # Leave enough to build external modules
  1790. # make mrproper Delete the current configuration, and all generated files
  1791. # make distclean Remove editor backup files, patch leftover files and the like
  1792. # Directories & files removed with 'make clean'
  1793. CLEAN_DIRS += $(MODVERDIR) \
  1794. $(foreach d, spl tpl, $(patsubst %,$d/%, \
  1795. $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
  1796. CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
  1797. u-boot* MLO* SPL System.map fit-dtb.blob* \
  1798. u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
  1799. lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
  1800. idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \
  1801. mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \
  1802. itb.fit.fit itb.fit.itb itb.map spl.map
  1803. # Directories & files removed with 'make mrproper'
  1804. MRPROPER_DIRS += include/config include/generated spl tpl \
  1805. .tmp_objdiff doc/output include/asm
  1806. # Remove include/asm symlink created by U-Boot before v2014.01
  1807. MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
  1808. ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
  1809. drivers/video/fonts/*.S include/asm
  1810. # clean - Delete most, but leave enough to build external modules
  1811. #
  1812. clean: rm-dirs := $(CLEAN_DIRS)
  1813. clean: rm-files := $(CLEAN_FILES)
  1814. clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
  1815. clean-dirs := $(addprefix _clean_, $(clean-dirs))
  1816. PHONY += $(clean-dirs) clean archclean
  1817. $(clean-dirs):
  1818. $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
  1819. clean: $(clean-dirs)
  1820. $(call cmd,rmdirs)
  1821. $(call cmd,rmfiles)
  1822. @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
  1823. \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
  1824. -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
  1825. -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
  1826. -o -name '*.lex.c' -o -name '*.tab.[ch]' \
  1827. -o -name '*.asn1.[ch]' \
  1828. -o -name '*.symtypes' -o -name 'modules.order' \
  1829. -o -name modules.builtin -o -name '.tmp_*.o.*' \
  1830. -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
  1831. -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
  1832. -type f -print | xargs rm -f
  1833. # mrproper - Delete all generated files, including .config
  1834. #
  1835. mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
  1836. mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
  1837. mrproper-dirs := $(addprefix _mrproper_,scripts)
  1838. PHONY += $(mrproper-dirs) mrproper archmrproper
  1839. $(mrproper-dirs):
  1840. $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
  1841. mrproper: clean $(mrproper-dirs)
  1842. $(call cmd,rmdirs)
  1843. $(call cmd,rmfiles)
  1844. @rm -f arch/*/include/asm/arch
  1845. # distclean
  1846. #
  1847. PHONY += distclean
  1848. distclean: mrproper
  1849. @find $(srctree) $(RCS_FIND_IGNORE) \
  1850. \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
  1851. -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
  1852. -o -name '.*.rej' -o -name '*%' -o -name 'core' \
  1853. -o -name '*.pyc' \) \
  1854. -type f -print | xargs rm -f
  1855. @rm -f boards.cfg CHANGELOG
  1856. # See doc/develop/python_cq.rst
  1857. PHONY += pylint
  1858. PYLINT_BASE := scripts/pylint.base
  1859. PYLINT_CUR := pylint.cur
  1860. PYLINT_DIFF := pylint.diff
  1861. pylint:
  1862. $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)"
  1863. $(Q)mkdir -p pylint.out
  1864. $(Q)rm -f pylint.out/out*
  1865. $(Q)find tools test -name "*.py" \
  1866. | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \
  1867. sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _
  1868. $(Q)rm -f $(PYLINT_CUR)
  1869. $(Q)( cd pylint.out; for f in *; do \
  1870. sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \
  1871. done ) | sort > $(PYLINT_CUR)
  1872. $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \
  1873. cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \
  1874. comm -3 $$base $$cur > $(PYLINT_DIFF); \
  1875. if [ -s $(PYLINT_DIFF) ]; then \
  1876. echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \
  1877. echo; \
  1878. echo "Added files:"; \
  1879. comm -13 $$base $$cur; \
  1880. echo; \
  1881. echo "Removed files:"; \
  1882. comm -23 $$base $$cur; \
  1883. false; \
  1884. else \
  1885. rm $$base $$cur $(PYLINT_DIFF); \
  1886. fi
  1887. $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \
  1888. if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \
  1889. echo "$$base_file: Score was $$base_val, now $$cur_val"; \
  1890. bad=true; fi; \
  1891. done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \
  1892. if $$bad; then \
  1893. echo "Some files have regressed, please fix"; \
  1894. false; \
  1895. else \
  1896. echo "No pylint regressions"; \
  1897. fi
  1898. backup:
  1899. F=`basename $(srctree)` ; cd .. ; \
  1900. gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
  1901. help:
  1902. @echo 'Cleaning targets:'
  1903. @echo ' clean - Remove most generated files but keep the config'
  1904. @echo ' mrproper - Remove all generated files + config + various backup files'
  1905. @echo ' distclean - mrproper + remove editor backup and patch files'
  1906. @echo ''
  1907. @echo 'Configuration targets:'
  1908. @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
  1909. @echo ''
  1910. @echo 'Test targets:'
  1911. @echo ''
  1912. @echo ' check - Run all automated tests that use sandbox'
  1913. @echo ' qcheck - Run quick automated tests that use sandbox'
  1914. @echo ' tcheck - Run quick automated tests on tools'
  1915. @echo ' pylint - Run pylint on all Python files'
  1916. @echo ''
  1917. @echo 'Other generic targets:'
  1918. @echo ' all - Build all necessary images depending on configuration'
  1919. @echo ' tests - Build U-Boot for sandbox and run tests'
  1920. @echo '* u-boot - Build the bare u-boot'
  1921. @echo ' dir/ - Build all files in dir and below'
  1922. @echo ' dir/file.[oisS] - Build specified target only'
  1923. @echo ' dir/file.lst - Build specified mixed source/assembly target only'
  1924. @echo ' (requires a recent binutils and recent build (System.map))'
  1925. @echo ' tags/ctags - Generate ctags file for editors'
  1926. @echo ' etags - Generate etags file for editors'
  1927. @echo ' cscope - Generate cscope index'
  1928. @echo ' ubootrelease - Output the release version string (use with make -s)'
  1929. @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
  1930. @echo " cfg - Don't build, just create the .cfg files"
  1931. @echo " envtools - Build only the target-side environment tools"
  1932. @echo ''
  1933. @echo 'Static analysers'
  1934. @echo ' checkstack - Generate a list of stack hogs'
  1935. @echo ' coccicheck - Execute static code analysis with Coccinelle'
  1936. @echo ''
  1937. @echo 'Documentation targets:'
  1938. @$(MAKE) -f $(srctree)/doc/Makefile dochelp
  1939. @echo ''
  1940. @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
  1941. @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
  1942. @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
  1943. @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
  1944. @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
  1945. @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
  1946. @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
  1947. @echo ' 1: warnings which may be relevant and do not occur too often'
  1948. @echo ' 2: warnings which occur quite often but may still be relevant'
  1949. @echo ' 3: more obscure warnings, can most likely be ignored'
  1950. @echo ' Multiple levels can be combined with W=12 or W=123'
  1951. @echo ''
  1952. @echo 'Execute "make" or "make all" to build all targets marked with [*] '
  1953. @echo 'For further info see the ./README file'
  1954. tests check:
  1955. $(srctree)/test/run
  1956. qcheck:
  1957. $(srctree)/test/run quick
  1958. tcheck:
  1959. $(srctree)/test/run tools
  1960. # Documentation targets
  1961. # ---------------------------------------------------------------------------
  1962. DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
  1963. linkcheckdocs dochelp refcheckdocs
  1964. PHONY += $(DOC_TARGETS)
  1965. $(DOC_TARGETS): scripts_basic FORCE
  1966. $(Q)$(MAKE) $(build)=doc $@
  1967. PHONY += checkstack ubootrelease ubootversion
  1968. checkstack:
  1969. $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
  1970. $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
  1971. ubootrelease:
  1972. @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
  1973. ubootversion:
  1974. @echo $(UBOOTVERSION)
  1975. # Single targets
  1976. # ---------------------------------------------------------------------------
  1977. # Single targets are compatible with:
  1978. # - build with mixed source and output
  1979. # - build with separate output dir 'make O=...'
  1980. # - external modules
  1981. #
  1982. # target-dir => where to store outputfile
  1983. # build-dir => directory in kernel source tree to use
  1984. ifeq ($(KBUILD_EXTMOD),)
  1985. build-dir = $(patsubst %/,%,$(dir $@))
  1986. target-dir = $(dir $@)
  1987. else
  1988. zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
  1989. build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
  1990. target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
  1991. endif
  1992. %.s: %.c prepare scripts FORCE
  1993. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1994. %.i: %.c prepare scripts FORCE
  1995. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1996. %.o: %.c prepare scripts FORCE
  1997. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  1998. %.lst: %.c prepare scripts FORCE
  1999. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  2000. %.s: %.S prepare scripts FORCE
  2001. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  2002. %.o: %.S prepare scripts FORCE
  2003. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  2004. %.symtypes: %.c prepare scripts FORCE
  2005. $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
  2006. # Modules
  2007. /: prepare scripts FORCE
  2008. $(cmd_crmodverdir)
  2009. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  2010. $(build)=$(build-dir)
  2011. %/: prepare scripts FORCE
  2012. $(cmd_crmodverdir)
  2013. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  2014. $(build)=$(build-dir)
  2015. %.ko: prepare scripts FORCE
  2016. $(cmd_crmodverdir)
  2017. $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
  2018. $(build)=$(build-dir) $(@:.ko=.o)
  2019. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
  2020. quiet_cmd_genenv = GENENV $@
  2021. cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
  2022. sed --in-place -e 's/\x00/\x0A/g' $@
  2023. u-boot-initial-env: u-boot.bin
  2024. $(call if_changed,genenv)
  2025. # Consistency checks
  2026. # ---------------------------------------------------------------------------
  2027. PHONY += coccicheck
  2028. coccicheck:
  2029. $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
  2030. # FIXME Should go into a make.lib or something
  2031. # ===========================================================================
  2032. quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
  2033. cmd_rmdirs = rm -rf $(rm-dirs)
  2034. quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
  2035. cmd_rmfiles = rm -f $(rm-files)
  2036. # read all saved command lines
  2037. cmd_files := $(wildcard .*.cmd)
  2038. ifneq ($(cmd_files),)
  2039. $(cmd_files): ; # Do not try to update included dependency files
  2040. include $(cmd_files)
  2041. endif
  2042. endif #ifeq ($(config-targets),1)
  2043. endif #ifeq ($(mixed-targets),1)
  2044. endif # skip-makefile
  2045. PHONY += FORCE
  2046. FORCE:
  2047. # Declare the contents of the PHONY variable as phony. We keep that
  2048. # information in a variable so we can use it in if_changed and friends.
  2049. .PHONY: $(PHONY)