Makefile.lib 20 KB

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  1. # SPDX-License-Identifier: GPL-2.0
  2. # Backward compatibility
  3. asflags-y += $(EXTRA_AFLAGS)
  4. ccflags-y += $(EXTRA_CFLAGS)
  5. cppflags-y += $(EXTRA_CPPFLAGS)
  6. ldflags-y += $(EXTRA_LDFLAGS)
  7. #
  8. # flags that take effect in sub directories
  9. export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
  10. export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
  11. # Figure out what we need to build from the various variables
  12. # ===========================================================================
  13. # When an object is listed to be built compiled-in and modular,
  14. # only build the compiled-in version
  15. obj-m := $(filter-out $(obj-y),$(obj-m))
  16. # Libraries are always collected in one lib file.
  17. # Filter out objects already built-in
  18. lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
  19. # Handle objects in subdirs
  20. # ---------------------------------------------------------------------------
  21. # o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
  22. # and add the directory to the list of dirs to descend into: $(subdir-y)
  23. # o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
  24. # and add the directory to the list of dirs to descend into: $(subdir-m)
  25. # Determine modorder.
  26. # Unfortunately, we don't have information about ordering between -y
  27. # and -m subdirs. Just put -y's first.
  28. modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
  29. __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
  30. subdir-y += $(__subdir-y)
  31. __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
  32. subdir-m += $(__subdir-m)
  33. obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
  34. obj-m := $(filter-out %/, $(obj-m))
  35. # Subdirectories we need to descend into
  36. subdir-ym := $(sort $(subdir-y) $(subdir-m))
  37. # if $(foo-objs) exists, foo.o is a composite object
  38. multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
  39. multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
  40. multi-used := $(multi-used-y) $(multi-used-m)
  41. single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
  42. # Build list of the parts of our composite objects, our composite
  43. # objects depend on those (obviously)
  44. multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
  45. multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
  46. multi-objs := $(multi-objs-y) $(multi-objs-m)
  47. # $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
  48. # tell kbuild to descend
  49. subdir-obj-y := $(filter %/built-in.o, $(obj-y))
  50. # $(obj-dirs) is a list of directories that contain object files
  51. obj-dirs := $(dir $(multi-objs) $(obj-y))
  52. # Replace multi-part objects by their individual parts, look at local dir only
  53. real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
  54. real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
  55. # Add subdir path
  56. extra-y := $(addprefix $(obj)/,$(extra-y))
  57. always := $(addprefix $(obj)/,$(always))
  58. targets := $(addprefix $(obj)/,$(targets))
  59. modorder := $(addprefix $(obj)/,$(modorder))
  60. obj-y := $(addprefix $(obj)/,$(obj-y))
  61. obj-m := $(addprefix $(obj)/,$(obj-m))
  62. lib-y := $(addprefix $(obj)/,$(lib-y))
  63. subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
  64. real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
  65. real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
  66. single-used-m := $(addprefix $(obj)/,$(single-used-m))
  67. multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
  68. multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
  69. multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
  70. multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
  71. subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
  72. obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
  73. # These flags are needed for modversions and compiling, so we define them here
  74. # already
  75. # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
  76. # end up in (or would, if it gets compiled in)
  77. # Note: Files that end up in two or more modules are compiled without the
  78. # KBUILD_MODNAME definition. The reason is that any made-up name would
  79. # differ in different configs.
  80. name-fix = $(subst $(comma),_,$(subst -,_,$1))
  81. basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
  82. modname_flags = $(if $(filter 1,$(words $(modname))),\
  83. -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
  84. orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
  85. $(ccflags-y) $(CFLAGS_$(basetarget).o)
  86. _c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
  87. orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
  88. $(asflags-y) $(AFLAGS_$(basetarget).o)
  89. _a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
  90. _cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
  91. #
  92. # Enable gcov profiling flags for a file, directory or for all files depending
  93. # on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
  94. # (in this order)
  95. #
  96. ifeq ($(CONFIG_GCOV_KERNEL),y)
  97. _c_flags += $(if $(patsubst n%,, \
  98. $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
  99. $(CFLAGS_GCOV))
  100. endif
  101. #
  102. # Enable address sanitizer flags for kernel except some files or directories
  103. # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
  104. #
  105. ifeq ($(CONFIG_KASAN),y)
  106. _c_flags += $(if $(patsubst n%,, \
  107. $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
  108. $(CFLAGS_KASAN))
  109. endif
  110. # If building the kernel in a separate objtree expand all occurrences
  111. # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
  112. ifeq ($(KBUILD_SRC),)
  113. __c_flags = $(_c_flags)
  114. __a_flags = $(_a_flags)
  115. __cpp_flags = $(_cpp_flags)
  116. else
  117. # -I$(obj) locates generated .h files
  118. # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
  119. # and locates generated .h files
  120. # FIXME: Replace both with specific CFLAGS* statements in the makefiles
  121. __c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
  122. __a_flags = $(call flags,_a_flags)
  123. __cpp_flags = $(call flags,_cpp_flags)
  124. endif
  125. # Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
  126. c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
  127. $(__c_flags) $(modkern_cflags) \
  128. -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
  129. a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
  130. $(__a_flags) $(modkern_aflags)
  131. cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
  132. $(__cpp_flags)
  133. ld_flags = $(LDFLAGS) $(ldflags-y)
  134. # Try these files in order to find the U-Boot-specific .dtsi include file
  135. u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
  136. $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
  137. $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
  138. $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
  139. $(wildcard $(dir $<)u-boot.dtsi))
  140. u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
  141. $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
  142. $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
  143. $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
  144. $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
  145. $(dir $<)u-boot.dtsi ... \
  146. found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
  147. # Uncomment for debugging
  148. # This shows all the files that were considered and the one that we chose.
  149. # u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw)
  150. # We use the first match
  151. u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
  152. $(notdir $(firstword $(u_boot_dtsi_options))))
  153. # Modified for U-Boot
  154. dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
  155. -I$(srctree)/arch/$(ARCH)/dts \
  156. -I$(srctree)/arch/$(ARCH)/dts/include \
  157. -Iinclude \
  158. -I$(srctree)/include \
  159. -I$(srctree)/arch/$(ARCH)/include \
  160. -include $(srctree)/include/linux/kconfig.h \
  161. -D__ASSEMBLY__ \
  162. -undef -D__DTS__
  163. # Finds the multi-part object the current object will be linked into
  164. modname-multi = $(sort $(foreach m,$(multi-used),\
  165. $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
  166. # Useful for describing the dependency of composite objects
  167. # Usage:
  168. # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
  169. define multi_depend
  170. $(foreach m, $(notdir $1), \
  171. $(eval $(obj)/$m: \
  172. $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
  173. endef
  174. # LEX
  175. # ---------------------------------------------------------------------------
  176. quiet_cmd_flex = LEX $@
  177. cmd_flex = $(LEX) -o$@ -L $<
  178. $(obj)/%.lex.c: $(src)/%.l FORCE
  179. $(call if_changed,flex)
  180. # YACC
  181. # ---------------------------------------------------------------------------
  182. quiet_cmd_bison = YACC $@
  183. cmd_bison = $(YACC) -o$@ -t -l $<
  184. $(obj)/%.tab.c: $(src)/%.y FORCE
  185. $(call if_changed,bison)
  186. quiet_cmd_bison_h = YACC $@
  187. cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
  188. $(obj)/%.tab.h: $(src)/%.y FORCE
  189. $(call if_changed,bison_h)
  190. # Shipped files
  191. # ===========================================================================
  192. quiet_cmd_shipped = SHIPPED $@
  193. cmd_shipped = cat $< > $@
  194. $(obj)/%: $(src)/%_shipped
  195. $(call cmd,shipped)
  196. # Commands useful for building a boot image
  197. # ===========================================================================
  198. #
  199. # Use as following:
  200. #
  201. # target: source(s) FORCE
  202. # $(if_changed,ld/objcopy/gzip)
  203. #
  204. # and add target to extra-y so that we know we have to
  205. # read in the saved command line
  206. # Linking
  207. # ---------------------------------------------------------------------------
  208. quiet_cmd_ld = LD $@
  209. cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
  210. $(filter-out FORCE,$^) -o $@
  211. # Objcopy
  212. # ---------------------------------------------------------------------------
  213. quiet_cmd_objcopy = OBJCOPY $@
  214. cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
  215. # Gzip
  216. # ---------------------------------------------------------------------------
  217. quiet_cmd_gzip = GZIP $@
  218. cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
  219. (rm -f $@ ; false)
  220. # DTC
  221. # ---------------------------------------------------------------------------
  222. # Generate an assembly file to wrap the output of the device tree compiler
  223. quiet_cmd_dt_S_dtb= DTB $@
  224. # Modified for U-Boot
  225. cmd_dt_S_dtb= \
  226. ( \
  227. echo '.section .dtb.init.rodata,"a"'; \
  228. echo '.balign 16'; \
  229. echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
  230. echo '__dtb_$(subst -,_,$(*F))_begin:'; \
  231. echo '.incbin "$<" '; \
  232. echo '__dtb_$(subst -,_,$(*F))_end:'; \
  233. echo '.global __dtb_$(subst -,_,$(*F))_end'; \
  234. echo '.balign 16'; \
  235. ) > $@
  236. $(obj)/%.dtb.S: $(obj)/%.dtb
  237. $(call cmd,dt_S_dtb)
  238. ifeq ($(CONFIG_SPL_LOAD_FIT_APPLY_OVERLAY),y)
  239. DTC_FLAGS += -@
  240. endif
  241. quiet_cmd_dtc = DTC $@
  242. # Modified for U-Boot
  243. # Bring in any U-Boot-specific include at the end of the file
  244. cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
  245. (cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \
  246. $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
  247. $(DTC) -O dtb -o $@ -b 0 \
  248. -i $(dir $<) $(DTC_FLAGS) \
  249. -d $(depfile).dtc.tmp $(dtc-tmp) || \
  250. (echo "Check $(shell pwd)/$(pre-tmp) for errors" && false) \
  251. ; \
  252. cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) ; \
  253. sed -i "s:$(pre-tmp):$(<):" $(depfile)
  254. $(obj)/%.dtb: $(src)/%.dts FORCE
  255. $(call if_changed_dep,dtc)
  256. pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
  257. dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
  258. # DTCO
  259. # ---------------------------------------------------------------------------
  260. quiet_cmd_dtco = DTCO $@
  261. # Rule for objects only; does not put specific u-boot include at the end
  262. # No generation of assembly file either
  263. # Modified for U-Boot
  264. cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
  265. $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
  266. $(DTC) -@ -O dtb -o $@ -b 0 \
  267. -i $(dir $<) $(DTC_FLAGS) \
  268. -d $(depfile).dtc.tmp $(dtc-tmp) ; \
  269. cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
  270. $(obj)/%.dtbo: $(src)/%.dts FORCE
  271. $(call if_changed_dep,dtco)
  272. # Fonts
  273. # ---------------------------------------------------------------------------
  274. # Generate an assembly file to wrap the font data
  275. quiet_cmd_S_ttf= TTF $@
  276. # Modified for U-Boot
  277. cmd_S_ttf= \
  278. ( \
  279. echo '.section .rodata.ttf.init,"a"'; \
  280. echo '.balign 16'; \
  281. echo '.global __ttf_$(*F)_begin'; \
  282. echo '__ttf_$(*F)_begin:'; \
  283. echo '.incbin "$<" '; \
  284. echo '__ttf_$(*F)_end:'; \
  285. echo '.global __ttf_$(*F)_end'; \
  286. echo '.balign 16'; \
  287. ) > $@
  288. $(obj)/%.S: $(src)/%.ttf
  289. $(call cmd,S_ttf)
  290. # EFI applications
  291. # A Makefile target *.efi is built as EFI application.
  292. # A Makefile target *_efi.S wraps *.efi as built-in EFI application.
  293. # ---------------------------------------------------------------------------
  294. # Generate an assembly file to wrap the EFI app
  295. cmd_S_efi= \
  296. ( \
  297. echo '.section .rodata.$*.init,"a"'; \
  298. echo '.balign 16'; \
  299. echo '.global __efi_$*_begin'; \
  300. echo '__efi_$*_begin:'; \
  301. echo '.incbin "$<" '; \
  302. echo '__efi_$*_end:'; \
  303. echo '.global __efi_$*_end'; \
  304. echo '.balign 16'; \
  305. ) > $@
  306. $(obj)/%_efi.S: $(obj)/%.efi
  307. $(call cmd,S_efi)
  308. quiet_cmd_efi_objcopy = OBJCOPY $@
  309. cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
  310. .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
  311. $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
  312. $(obj)/%.efi: $(obj)/%_efi.so
  313. $(call cmd,efi_objcopy)
  314. quiet_cmd_efi_ld = LD $@
  315. cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
  316. -Bsymbolic -s $^ -o $@
  317. EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
  318. $(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S) FORCE
  319. $(call if_changed_dep,as_o_S)
  320. $(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE
  321. $(call cmd,force_checksrc)
  322. $(call if_changed_rule,cc_o_c)
  323. $(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o
  324. $(call cmd,efi_ld)
  325. # ACPI
  326. # ---------------------------------------------------------------------------
  327. #
  328. # This first sends the file (typically dsdt.asl) through the preprocessor
  329. # resolve includes and any CONFIG options used. This produces dsdt.asl.tmp
  330. # which is pure ASL code. The Intel ASL (ACPI (Advanced Configuration and Power
  331. # Interface) Source Language compiler (iasl) then converts this ASL code into a
  332. # C file containing the hex data to build into U-Boot. This file is called
  333. # dsdt.hex (despite us setting the prefix to .../dsdt.asl.tmp) so must be
  334. # renamed to dsdt.c for consumption by the build system.
  335. ASL_TMP = $(patsubst %.c,%.asl.tmp,$@)
  336. quiet_cmd_acpi_c_asl= ASL $<
  337. cmd_acpi_c_asl= \
  338. $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) \
  339. -o $(ASL_TMP) $< && \
  340. iasl -p $@ -tc $(ASL_TMP) $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
  341. mv $(patsubst %.c,%.hex,$@) $@
  342. $(obj)/dsdt.c: $(src)/dsdt.asl
  343. $(call cmd,acpi_c_asl)
  344. $(Q)sed -i -e "s,dsdt_aml_code,AmlCode," $@
  345. # Bzip2
  346. # ---------------------------------------------------------------------------
  347. # Bzip2 and LZMA do not include size in file... so we have to fake that;
  348. # append the size as a 32-bit littleendian number as gzip does.
  349. size_append = printf $(shell \
  350. dec_size=0; \
  351. for F in $1; do \
  352. fsize=$$(stat -c "%s" $$F); \
  353. dec_size=$$(expr $$dec_size + $$fsize); \
  354. done; \
  355. printf "%08x\n" $$dec_size | \
  356. sed 's/\(..\)/\1 /g' | { \
  357. read ch0 ch1 ch2 ch3; \
  358. for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
  359. printf '%s%03o' '\\' $$((0x$$ch)); \
  360. done; \
  361. } \
  362. )
  363. quiet_cmd_bzip2 = BZIP2 $@
  364. cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
  365. bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  366. (rm -f $@ ; false)
  367. # Lzma
  368. # ---------------------------------------------------------------------------
  369. quiet_cmd_lzma = LZMA $@
  370. cmd_lzma = (cat $(filter-out FORCE,$^) | \
  371. lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  372. (rm -f $@ ; false)
  373. quiet_cmd_lzo = LZO $@
  374. cmd_lzo = (cat $(filter-out FORCE,$^) | \
  375. lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  376. (rm -f $@ ; false)
  377. quiet_cmd_lz4 = LZ4 $@
  378. cmd_lz4 = (cat $(filter-out FORCE,$^) | \
  379. lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  380. (rm -f $@ ; false)
  381. # U-Boot mkimage
  382. # ---------------------------------------------------------------------------
  383. MKIMAGE := $(srctree)/scripts/mkuboot.sh
  384. # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
  385. # the number of overrides in arch makefiles
  386. UIMAGE_ARCH ?= $(SRCARCH)
  387. UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
  388. UIMAGE_OPTS-y ?=
  389. UIMAGE_TYPE ?= kernel
  390. UIMAGE_LOADADDR ?= arch_must_set_this
  391. UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
  392. UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
  393. UIMAGE_IN ?= $<
  394. UIMAGE_OUT ?= $@
  395. quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
  396. cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
  397. -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
  398. -T $(UIMAGE_TYPE) \
  399. -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
  400. -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
  401. # XZ
  402. # ---------------------------------------------------------------------------
  403. # Use xzkern to compress the kernel image and xzmisc to compress other things.
  404. #
  405. # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
  406. # of the kernel decompressor. A BCJ filter is used if it is available for
  407. # the target architecture. xzkern also appends uncompressed size of the data
  408. # using size_append. The .xz format has the size information available at
  409. # the end of the file too, but it's in more complex format and it's good to
  410. # avoid changing the part of the boot code that reads the uncompressed size.
  411. # Note that the bytes added by size_append will make the xz tool think that
  412. # the file is corrupt. This is expected.
  413. #
  414. # xzmisc doesn't use size_append, so it can be used to create normal .xz
  415. # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
  416. # big dictionary would increase the memory usage too much in the multi-call
  417. # decompression mode. A BCJ filter isn't used either.
  418. quiet_cmd_xzkern = XZKERN $@
  419. cmd_xzkern = (cat $(filter-out FORCE,$^) | \
  420. sh $(srctree)/scripts/xz_wrap.sh && \
  421. $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  422. (rm -f $@ ; false)
  423. quiet_cmd_xzmisc = XZMISC $@
  424. cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
  425. xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
  426. (rm -f $@ ; false)
  427. # Additional commands for U-Boot
  428. #
  429. # mkimage
  430. # ---------------------------------------------------------------------------
  431. MKIMAGEOUTPUT ?= /dev/null
  432. quiet_cmd_mkimage = MKIMAGE $@
  433. cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
  434. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  435. # fdtgrep
  436. # ---------------------------------------------------------------------------
  437. # Pass the original device tree file through fdtgrep twice. The first pass
  438. # removes any unwanted nodes (i.e. those which don't have the
  439. # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
  440. # pass removes various unused properties from the remaining nodes.
  441. # The output is typically a much smaller device tree file.
  442. ifeq ($(CONFIG_TPL_BUILD),y)
  443. fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
  444. else
  445. fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
  446. endif
  447. quiet_cmd_fdtgrep = FDTGREP $@
  448. cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
  449. -n /chosen -n /config -O dtb | \
  450. $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
  451. -P u-boot,dm-pre-reloc -P u-boot,dm-spl -P u-boot,dm-tpl \
  452. $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
  453. # fdt_rm_props
  454. # ---------------------------------------------------------------------------
  455. # Pass the original device tree file through fdtgrep. This removes various
  456. # unused properties. The output is typically a smaller device tree file.
  457. quiet_cmd_fdt_rm_props = FDTGREP $@
  458. cmd_fdt_rm_props = cat $< | $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
  459. $(addprefix -P ,$(subst $\",,$(CONFIG_OF_REMOVE_PROPS)))