1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 2f77bf014SSam Ravnborg# Backward compatibility 3f77bf014SSam Ravnborgasflags-y += $(EXTRA_AFLAGS) 4f77bf014SSam Ravnborgccflags-y += $(EXTRA_CFLAGS) 5f77bf014SSam Ravnborgcppflags-y += $(EXTRA_CPPFLAGS) 6f77bf014SSam Ravnborgldflags-y += $(EXTRA_LDFLAGS) 7f77bf014SSam Ravnborg 88fdc3fbbSCao jin# flags that take effect in current and sub directories 94e13d47cSMasahiro YamadaKBUILD_AFLAGS += $(subdir-asflags-y) 104e13d47cSMasahiro YamadaKBUILD_CFLAGS += $(subdir-ccflags-y) 11720097d8SSam Ravnborg 121da177e4SLinus Torvalds# Figure out what we need to build from the various variables 131da177e4SLinus Torvalds# =========================================================================== 141da177e4SLinus Torvalds 151da177e4SLinus Torvalds# When an object is listed to be built compiled-in and modular, 161da177e4SLinus Torvalds# only build the compiled-in version 171da177e4SLinus Torvaldsobj-m := $(filter-out $(obj-y),$(obj-m)) 181da177e4SLinus Torvalds 191da177e4SLinus Torvalds# Libraries are always collected in one lib file. 201da177e4SLinus Torvalds# Filter out objects already built-in 211da177e4SLinus Torvaldslib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m))) 221da177e4SLinus Torvalds 238fdc3fbbSCao jin# Determine modorder. 248fdc3fbbSCao jin# Unfortunately, we don't have information about ordering between -y 258fdc3fbbSCao jin# and -m subdirs. Just put -y's first. 268fdc3fbbSCao jinmodorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko)) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds# Handle objects in subdirs 291da177e4SLinus Torvalds# --------------------------------------------------------------------------- 30f49821eeSNicholas Piggin# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.a 311da177e4SLinus Torvalds# and add the directory to the list of dirs to descend into: $(subdir-y) 321da177e4SLinus Torvalds# o if we encounter foo/ in $(obj-m), remove it from $(obj-m) 331da177e4SLinus Torvalds# and add the directory to the list of dirs to descend into: $(subdir-m) 341da177e4SLinus Torvalds__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) 351da177e4SLinus Torvaldssubdir-y += $(__subdir-y) 361da177e4SLinus Torvalds__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) 371da177e4SLinus Torvaldssubdir-m += $(__subdir-m) 38f49821eeSNicholas Pigginobj-y := $(patsubst %/, %/built-in.a, $(obj-y)) 391da177e4SLinus Torvaldsobj-m := $(filter-out %/, $(obj-m)) 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds# Subdirectories we need to descend into 421da177e4SLinus Torvaldssubdir-ym := $(sort $(subdir-y) $(subdir-m)) 431da177e4SLinus Torvalds 4433e84f2eSMasahiro Yamada# If $(foo-objs), $(foo-y), $(foo-m), or $(foo-) exists, foo.o is a composite object 4533e84f2eSMasahiro Yamadamulti-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))), $(m)))) 4633e84f2eSMasahiro Yamadamulti-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)) $($(m:.o=-))), $(m)))) 471da177e4SLinus Torvaldsmulti-used := $(multi-used-y) $(multi-used-m) 481da177e4SLinus Torvalds 49f5fb9765SSam Ravnborg# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to 50f5fb9765SSam Ravnborg# tell kbuild to descend 51f49821eeSNicholas Pigginsubdir-obj-y := $(filter %/built-in.a, $(obj-y)) 521da177e4SLinus Torvalds 53f98fe47cSMasahiro Yamada# Replace multi-part objects by their individual parts, 54f98fe47cSMasahiro Yamada# including built-in.a from subdirectories 5533e84f2eSMasahiro Yamadareal-obj-y := $(foreach m, $(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) 5633e84f2eSMasahiro Yamadareal-obj-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m))) 571da177e4SLinus Torvalds 587e7962ddSMasahiro Yamada# DTB 597e7962ddSMasahiro Yamada# If CONFIG_OF_ALL_DTBS is enabled, all DT blobs are built 607e7962ddSMasahiro Yamadaextra-y += $(dtb-y) 617e7962ddSMasahiro Yamadaextra-$(CONFIG_OF_ALL_DTBS) += $(dtb-) 627e7962ddSMasahiro Yamada 634f0e3a57SRob Herringifneq ($(CHECK_DTBS),) 644f0e3a57SRob Herringextra-y += $(patsubst %.dtb,%.dt.yaml, $(dtb-y)) 654f0e3a57SRob Herringextra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtb,%.dt.yaml, $(dtb-)) 664f0e3a57SRob Herringendif 674f0e3a57SRob Herring 68e846f0dcSJani Nikula# Test self-contained headers 691e21cbfaSMasahiro Yamada 701e21cbfaSMasahiro Yamada# Wildcard searches in $(srctree)/$(src)/, but not in $(objtree)/$(obj)/. 711e21cbfaSMasahiro Yamada# Stale generated headers are often left over, so pattern matching should 721e21cbfaSMasahiro Yamada# be avoided. Please notice $(srctree)/$(src)/ and $(objtree)/$(obj) point 731e21cbfaSMasahiro Yamada# to the same location for in-tree building. So, header-test-pattern-y should 741e21cbfaSMasahiro Yamada# be used with care. 751e21cbfaSMasahiro Yamadaheader-test-y += $(filter-out $(header-test-), \ 761e21cbfaSMasahiro Yamada $(patsubst $(srctree)/$(src)/%, %, \ 771e21cbfaSMasahiro Yamada $(wildcard $(addprefix $(srctree)/$(src)/, \ 781e21cbfaSMasahiro Yamada $(header-test-pattern-y))))) 791e21cbfaSMasahiro Yamada 804bd01de8SMasahiro Yamadaextra-$(CONFIG_HEADER_TEST) += $(addsuffix .s, $(header-test-y) $(header-test-m)) 81e846f0dcSJani Nikula 821da177e4SLinus Torvalds# Add subdir path 831da177e4SLinus Torvalds 841da177e4SLinus Torvaldsextra-y := $(addprefix $(obj)/,$(extra-y)) 851da177e4SLinus Torvaldsalways := $(addprefix $(obj)/,$(always)) 861da177e4SLinus Torvaldstargets := $(addprefix $(obj)/,$(targets)) 87551559e1STejun Heomodorder := $(addprefix $(obj)/,$(modorder)) 881da177e4SLinus Torvaldsobj-m := $(addprefix $(obj)/,$(obj-m)) 891da177e4SLinus Torvaldslib-y := $(addprefix $(obj)/,$(lib-y)) 901da177e4SLinus Torvaldssubdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) 91f5f33681SMasahiro Yamadareal-obj-y := $(addprefix $(obj)/,$(real-obj-y)) 92f5f33681SMasahiro Yamadareal-obj-m := $(addprefix $(obj)/,$(real-obj-m)) 931da177e4SLinus Torvaldsmulti-used-m := $(addprefix $(obj)/,$(multi-used-m)) 941da177e4SLinus Torvaldssubdir-ym := $(addprefix $(obj)/,$(subdir-ym)) 951da177e4SLinus Torvalds 96c0152e9aSMasahiro Yamada# Finds the multi-part object the current object will be linked into. 97c0152e9aSMasahiro Yamada# If the object belongs to two or more multi-part objects, all of them are 98c0152e9aSMasahiro Yamada# concatenated with a colon separator. 99c0152e9aSMasahiro Yamadamodname-multi = $(subst $(space),:,$(sort $(foreach m,$(multi-used),\ 100c0152e9aSMasahiro Yamada $(if $(filter $*.o, $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$(m:.o=))))) 101c0152e9aSMasahiro Yamada 102c0152e9aSMasahiro Yamadamodname = $(if $(modname-multi),$(modname-multi),$(basetarget)) 103c0152e9aSMasahiro Yamada 10454b8ae66SMasahiro Yamada# target with $(obj)/ and its suffix stripped 10554b8ae66SMasahiro Yamadatarget-stem = $(basename $(patsubst $(obj)/%,%,$@)) 10654b8ae66SMasahiro Yamada 1071da177e4SLinus Torvalds# These flags are needed for modversions and compiling, so we define them here 1088fdc3fbbSCao jin# $(modname_flags) defines KBUILD_MODNAME as the name of the module it will 1091da177e4SLinus Torvalds# end up in (or would, if it gets compiled in) 110b42841b7SMichal Marekname-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote) 111b42841b7SMichal Marekbasename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget)) 112aeacb019SMasahiro Yamadamodname_flags = -DKBUILD_MODNAME=$(call name-fix,$(modname)) 1131da177e4SLinus Torvalds 1144e13d47cSMasahiro Yamadaorig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \ 11554b8ae66SMasahiro Yamada $(ccflags-y) $(CFLAGS_$(target-stem).o) 11654b8ae66SMasahiro Yamada_c_flags = $(filter-out $(CFLAGS_REMOVE_$(target-stem).o), $(orig_c_flags)) 1174e13d47cSMasahiro Yamadaorig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) \ 11854b8ae66SMasahiro Yamada $(asflags-y) $(AFLAGS_$(target-stem).o) 11954b8ae66SMasahiro Yamada_a_flags = $(filter-out $(AFLAGS_REMOVE_$(target-stem).o), $(orig_a_flags)) 12054b8ae66SMasahiro Yamada_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(target-stem).lds) 1211da177e4SLinus Torvalds 1222521f2c2SPeter Oberparleiter# 1232521f2c2SPeter Oberparleiter# Enable gcov profiling flags for a file, directory or for all files depending 1242521f2c2SPeter Oberparleiter# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL 1252521f2c2SPeter Oberparleiter# (in this order) 1262521f2c2SPeter Oberparleiter# 1272521f2c2SPeter Oberparleiterifeq ($(CONFIG_GCOV_KERNEL),y) 1282521f2c2SPeter Oberparleiter_c_flags += $(if $(patsubst n%,, \ 1292521f2c2SPeter Oberparleiter $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \ 1302521f2c2SPeter Oberparleiter $(CFLAGS_GCOV)) 1312521f2c2SPeter Oberparleiterendif 1322521f2c2SPeter Oberparleiter 1330b24beccSAndrey Ryabinin# 1340b24beccSAndrey Ryabinin# Enable address sanitizer flags for kernel except some files or directories 1350b24beccSAndrey Ryabinin# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) 1360b24beccSAndrey Ryabinin# 1370b24beccSAndrey Ryabininifeq ($(CONFIG_KASAN),y) 1380b24beccSAndrey Ryabinin_c_flags += $(if $(patsubst n%,, \ 1390b24beccSAndrey Ryabinin $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ 1400e410e15SAndrey Konovalov $(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE)) 1410b24beccSAndrey Ryabininendif 1420b24beccSAndrey Ryabinin 143c6d30853SAndrey Ryabininifeq ($(CONFIG_UBSAN),y) 144c6d30853SAndrey Ryabinin_c_flags += $(if $(patsubst n%,, \ 145c6d30853SAndrey Ryabinin $(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \ 146c6d30853SAndrey Ryabinin $(CFLAGS_UBSAN)) 147c6d30853SAndrey Ryabininendif 148c6d30853SAndrey Ryabinin 1495c9a8750SDmitry Vyukovifeq ($(CONFIG_KCOV),y) 1505c9a8750SDmitry Vyukov_c_flags += $(if $(patsubst n%,, \ 151a4691deaSVegard Nossum $(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \ 1525c9a8750SDmitry Vyukov $(CFLAGS_KCOV)) 1535c9a8750SDmitry Vyukovendif 1545c9a8750SDmitry Vyukov 155*dfd402a4SMarco Elver# 156*dfd402a4SMarco Elver# Enable KCSAN flags except some files or directories we don't want to check 157*dfd402a4SMarco Elver# (depends on variables KCSAN_SANITIZE_obj.o, KCSAN_SANITIZE) 158*dfd402a4SMarco Elver# 159*dfd402a4SMarco Elverifeq ($(CONFIG_KCSAN),y) 160*dfd402a4SMarco Elver_c_flags += $(if $(patsubst n%,, \ 161*dfd402a4SMarco Elver $(KCSAN_SANITIZE_$(basetarget).o)$(KCSAN_SANITIZE)y), \ 162*dfd402a4SMarco Elver $(CFLAGS_KCSAN)) 163*dfd402a4SMarco Elverendif 164*dfd402a4SMarco Elver 165cdd750bfSMasahiro Yamada# $(srctree)/$(src) for including checkin headers from generated source files 166cdd750bfSMasahiro Yamada# $(objtree)/$(obj) for including generated headers from checkin source files 16758156ba4SMasahiro Yamadaifeq ($(KBUILD_EXTMOD),) 168051f278eSMasahiro Yamadaifdef building_out_of_srctree 169cdd750bfSMasahiro Yamada_c_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj) 170cdd750bfSMasahiro Yamada_a_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj) 171cdd750bfSMasahiro Yamada_cpp_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj) 1721da177e4SLinus Torvaldsendif 17358156ba4SMasahiro Yamadaendif 1741da177e4SLinus Torvalds 175eb27ea5cSMasahiro Yamadapart-of-module = $(if $(filter $(basename $@).o, $(real-obj-m)),y) 176eb27ea5cSMasahiro Yamadaquiet_modtag = $(if $(part-of-module),[M], ) 177eb27ea5cSMasahiro Yamada 178eb27ea5cSMasahiro Yamadamodkern_cflags = \ 179eb27ea5cSMasahiro Yamada $(if $(part-of-module), \ 180eb27ea5cSMasahiro Yamada $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \ 181eb27ea5cSMasahiro Yamada $(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL)) 182eb27ea5cSMasahiro Yamada 183eb27ea5cSMasahiro Yamadamodkern_aflags = $(if $(part-of-module), \ 184eb27ea5cSMasahiro Yamada $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE), \ 185eb27ea5cSMasahiro Yamada $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)) 186eb27ea5cSMasahiro Yamada 187d8672b40SSam Ravnborgc_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ 188a95b37e2SMasahiro Yamada -include $(srctree)/include/linux/compiler_types.h \ 189cdd750bfSMasahiro Yamada $(_c_flags) $(modkern_cflags) \ 190b42841b7SMichal Marek $(basename_flags) $(modname_flags) 1911da177e4SLinus Torvalds 192d8672b40SSam Ravnborga_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ 193cdd750bfSMasahiro Yamada $(_a_flags) $(modkern_aflags) 1941da177e4SLinus Torvalds 195d8672b40SSam Ravnborgcpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ 196cdd750bfSMasahiro Yamada $(_cpp_flags) 1971da177e4SLinus Torvalds 198d503ac53SMasahiro Yamadald_flags = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) 1991da177e4SLinus Torvalds 20050f9ddafSMasahiro YamadaDTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes 20150f9ddafSMasahiro Yamada 202b0a4d8b3SIan Campbelldtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ 20350f9ddafSMasahiro Yamada $(addprefix -I,$(DTC_INCLUDE)) \ 204e570d7c1SStephen Warren -undef -D__DTS__ 205e570d7c1SStephen Warren 206c8589d1eSMasahiro Yamada# Useful for describing the dependency of composite objects 207c8589d1eSMasahiro Yamada# Usage: 208c8589d1eSMasahiro Yamada# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) 209c8589d1eSMasahiro Yamadadefine multi_depend 210c8589d1eSMasahiro Yamada$(foreach m, $(notdir $1), \ 211c8589d1eSMasahiro Yamada $(eval $(obj)/$m: \ 212c8589d1eSMasahiro Yamada $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) 213c8589d1eSMasahiro Yamadaendef 214c8589d1eSMasahiro Yamada 2151da177e4SLinus Torvalds# Shipped files 2161da177e4SLinus Torvalds# =========================================================================== 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvaldsquiet_cmd_shipped = SHIPPED $@ 2191da177e4SLinus Torvaldscmd_shipped = cat $< > $@ 2201da177e4SLinus Torvalds 221991d76c9SArnaud Lacombe$(obj)/%: $(src)/%_shipped 2221da177e4SLinus Torvalds $(call cmd,shipped) 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds# Commands useful for building a boot image 2251da177e4SLinus Torvalds# =========================================================================== 2261da177e4SLinus Torvalds# 2271da177e4SLinus Torvalds# Use as following: 2281da177e4SLinus Torvalds# 2291da177e4SLinus Torvalds# target: source(s) FORCE 2301da177e4SLinus Torvalds# $(if_changed,ld/objcopy/gzip) 2311da177e4SLinus Torvalds# 232836caba7SSam Ravnborg# and add target to extra-y so that we know we have to 2331da177e4SLinus Torvalds# read in the saved command line 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds# Linking 2361da177e4SLinus Torvalds# --------------------------------------------------------------------------- 2371da177e4SLinus Torvalds 2381da177e4SLinus Torvaldsquiet_cmd_ld = LD $@ 239afa974b7SMasahiro Yamada cmd_ld = $(LD) $(ld_flags) $(real-prereqs) -o $@ 2401da177e4SLinus Torvalds 241898f5a00SMasahiro Yamada# Archive 242898f5a00SMasahiro Yamada# --------------------------------------------------------------------------- 243898f5a00SMasahiro Yamada 244898f5a00SMasahiro Yamadaquiet_cmd_ar = AR $@ 24513dc8c02SMasahiro Yamada cmd_ar = rm -f $@; $(AR) cDPrsT $@ $(real-prereqs) 246898f5a00SMasahiro Yamada 2471da177e4SLinus Torvalds# Objcopy 2481da177e4SLinus Torvalds# --------------------------------------------------------------------------- 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvaldsquiet_cmd_objcopy = OBJCOPY $@ 2511da177e4SLinus Torvaldscmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds# Gzip 2541da177e4SLinus Torvalds# --------------------------------------------------------------------------- 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvaldsquiet_cmd_gzip = GZIP $@ 257afa974b7SMasahiro Yamada cmd_gzip = cat $(real-prereqs) | gzip -n -f -9 > $@ 2581da177e4SLinus Torvalds 259aab94339SDirk Brandewie# DTC 260aab94339SDirk Brandewie# --------------------------------------------------------------------------- 2616b22b3d1SRob HerringDTC ?= $(objtree)/scripts/dtc/dtc 262aab94339SDirk Brandewie 263bc553986SRob Herring# Disable noisy checks by default 264e27128dbSMasahiro Yamadaifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),) 2658654cb8dSRob HerringDTC_FLAGS += -Wno-unit_address_vs_reg \ 2668654cb8dSRob Herring -Wno-unit_address_format \ 2674fd98e37SRob Herring -Wno-avoid_unnecessary_addr_size \ 2684fd98e37SRob Herring -Wno-alias_paths \ 26974656b68SRob Herring -Wno-graph_child_address \ 27070523a3cSRob Herring -Wno-simple_bus_reg \ 27174656b68SRob Herring -Wno-unique_unit_address \ 2728654cb8dSRob Herring -Wno-pci_device_reg 273bc553986SRob Herringendif 274bc553986SRob Herring 275e27128dbSMasahiro Yamadaifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),) 2768654cb8dSRob HerringDTC_FLAGS += -Wnode_name_chars_strict \ 2778654cb8dSRob Herring -Wproperty_name_chars_strict 278aab94339SDirk Brandewieendif 279aab94339SDirk Brandewie 280331f7416SFrank RowandDTC_FLAGS += $(DTC_FLAGS_$(basetarget)) 281331f7416SFrank Rowand 282aab94339SDirk Brandewie# Generate an assembly file to wrap the output of the device tree compiler 283aab94339SDirk Brandewiequiet_cmd_dt_S_dtb= DTB $@ 284aab94339SDirk Brandewiecmd_dt_S_dtb= \ 285b79c6aa6SMasahiro Yamada{ \ 286aab94339SDirk Brandewie echo '\#include <asm-generic/vmlinux.lds.h>'; \ 287aab94339SDirk Brandewie echo '.section .dtb.init.rodata,"a"'; \ 288aab94339SDirk Brandewie echo '.balign STRUCT_ALIGNMENT'; \ 28955fe6da9SJames Hogan echo '.global __dtb_$(subst -,_,$(*F))_begin'; \ 29055fe6da9SJames Hogan echo '__dtb_$(subst -,_,$(*F))_begin:'; \ 291aab94339SDirk Brandewie echo '.incbin "$<" '; \ 29255fe6da9SJames Hogan echo '__dtb_$(subst -,_,$(*F))_end:'; \ 29355fe6da9SJames Hogan echo '.global __dtb_$(subst -,_,$(*F))_end'; \ 294aab94339SDirk Brandewie echo '.balign STRUCT_ALIGNMENT'; \ 295b79c6aa6SMasahiro Yamada} > $@ 296aab94339SDirk Brandewie 297a7f92419SMasahiro Yamada$(obj)/%.dtb.S: $(obj)/%.dtb FORCE 298a7f92419SMasahiro Yamada $(call if_changed,dt_S_dtb) 299aab94339SDirk Brandewie 300aab94339SDirk Brandewiequiet_cmd_dtc = DTC $@ 30177479b38SNathan Rossicmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ 30237c8a5faSRob Herring $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ 3034f0e3a57SRob Herring $(DTC) -O $(2) -o $@ -b 0 \ 30450f9ddafSMasahiro Yamada $(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \ 305b0a4d8b3SIan Campbell -d $(depfile).dtc.tmp $(dtc-tmp) ; \ 306b0a4d8b3SIan Campbell cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) 3071da177e4SLinus Torvalds 308b8fc5b21SRob Herring$(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE 3094f0e3a57SRob Herring $(call if_changed_dep,dtc,dtb) 3104f0e3a57SRob Herring 3114f0e3a57SRob HerringDT_CHECKER ?= dt-validate 3124f0e3a57SRob HerringDT_BINDING_DIR := Documentation/devicetree/bindings 3134f0e3a57SRob HerringDT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.yaml 3144f0e3a57SRob Herring 3154f0e3a57SRob Herringquiet_cmd_dtb_check = CHECK $@ 31605aeca7cSRob Herring cmd_dtb_check = $(DT_CHECKER) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ ; 3174f0e3a57SRob Herring 3184f0e3a57SRob Herringdefine rule_dtc_dt_yaml 319f5688663SMasahiro Yamada $(call cmd_and_fixdep,dtc,yaml) 320f5688663SMasahiro Yamada $(call cmd,dtb_check) 3214f0e3a57SRob Herringendef 3224f0e3a57SRob Herring 3234f0e3a57SRob Herring$(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE 3244f0e3a57SRob Herring $(call if_changed_rule,dtc_dt_yaml) 32590b335fbSStephen Warren 326b0a4d8b3SIan Campbelldtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) 32722435f38SStephen Warren 328bc22c17eSAlain Knaff# Bzip2 329bc22c17eSAlain Knaff# --------------------------------------------------------------------------- 330bc22c17eSAlain Knaff 331d3dd3b5aSH. Peter Anvin# Bzip2 and LZMA do not include size in file... so we have to fake that; 332d3dd3b5aSH. Peter Anvin# append the size as a 32-bit littleendian number as gzip does. 3334a2ff67cSMichael Tokarevsize_append = printf $(shell \ 334d3dd3b5aSH. Peter Anvindec_size=0; \ 335afa974b7SMasahiro Yamadafor F in $(real-prereqs); do \ 336a670b0b4SMichael Forney fsize=$$($(CONFIG_SHELL) $(srctree)/scripts/file-size.sh $$F); \ 337d3dd3b5aSH. Peter Anvin dec_size=$$(expr $$dec_size + $$fsize); \ 338d3dd3b5aSH. Peter Anvindone; \ 3391373411aSJonathan Niederprintf "%08x\n" $$dec_size | \ 3401373411aSJonathan Nieder sed 's/\(..\)/\1 /g' | { \ 3411373411aSJonathan Nieder read ch0 ch1 ch2 ch3; \ 3421373411aSJonathan Nieder for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ 3431373411aSJonathan Nieder printf '%s%03o' '\\' $$((0x$$ch)); \ 3441373411aSJonathan Nieder done; \ 3451373411aSJonathan Nieder } \ 346d3dd3b5aSH. Peter Anvin) 347bc22c17eSAlain Knaff 348bc22c17eSAlain Knaffquiet_cmd_bzip2 = BZIP2 $@ 349b956c7a6SHarald Seiler cmd_bzip2 = { cat $(real-prereqs) | bzip2 -9; $(size_append); } > $@ 350bc22c17eSAlain Knaff 351bc22c17eSAlain Knaff# Lzma 352bc22c17eSAlain Knaff# --------------------------------------------------------------------------- 353bc22c17eSAlain Knaff 354bc22c17eSAlain Knaffquiet_cmd_lzma = LZMA $@ 355b956c7a6SHarald Seiler cmd_lzma = { cat $(real-prereqs) | lzma -9; $(size_append); } > $@ 3567dd65febSAlbin Tonnerre 3577dd65febSAlbin Tonnerrequiet_cmd_lzo = LZO $@ 358b956c7a6SHarald Seiler cmd_lzo = { cat $(real-prereqs) | lzop -9; $(size_append); } > $@ 359d61931d8SBorislav Petkov 360e76e1fdfSKyungsik Leequiet_cmd_lz4 = LZ4 $@ 361b956c7a6SHarald Seiler cmd_lz4 = { cat $(real-prereqs) | lz4c -l -c1 stdin stdout; \ 362b79c6aa6SMasahiro Yamada $(size_append); } > $@ 363e76e1fdfSKyungsik Lee 364e3393645SStephen Warren# U-Boot mkimage 365e3393645SStephen Warren# --------------------------------------------------------------------------- 366e3393645SStephen Warren 367e3393645SStephen WarrenMKIMAGE := $(srctree)/scripts/mkuboot.sh 368e3393645SStephen Warren 369e3393645SStephen Warren# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces 370e3393645SStephen Warren# the number of overrides in arch makefiles 371e3393645SStephen WarrenUIMAGE_ARCH ?= $(SRCARCH) 372e3393645SStephen WarrenUIMAGE_COMPRESSION ?= $(if $(2),$(2),none) 373e3393645SStephen WarrenUIMAGE_OPTS-y ?= 374e3393645SStephen WarrenUIMAGE_TYPE ?= kernel 375e3393645SStephen WarrenUIMAGE_LOADADDR ?= arch_must_set_this 376e3393645SStephen WarrenUIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) 377e3393645SStephen WarrenUIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' 378e3393645SStephen Warren 379786ac51aSMasahiro Yamadaquiet_cmd_uimage = UIMAGE $@ 380858805b3SMasahiro Yamada cmd_uimage = $(BASH) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ 381e3393645SStephen Warren -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ 382e3393645SStephen Warren -T $(UIMAGE_TYPE) \ 383e3393645SStephen Warren -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ 384786ac51aSMasahiro Yamada -n $(UIMAGE_NAME) -d $< $@ 385e3393645SStephen Warren 38624fa0402SLasse Collin# XZ 38724fa0402SLasse Collin# --------------------------------------------------------------------------- 38824fa0402SLasse Collin# Use xzkern to compress the kernel image and xzmisc to compress other things. 38924fa0402SLasse Collin# 39024fa0402SLasse Collin# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage 39124fa0402SLasse Collin# of the kernel decompressor. A BCJ filter is used if it is available for 39224fa0402SLasse Collin# the target architecture. xzkern also appends uncompressed size of the data 39324fa0402SLasse Collin# using size_append. The .xz format has the size information available at 39424fa0402SLasse Collin# the end of the file too, but it's in more complex format and it's good to 39524fa0402SLasse Collin# avoid changing the part of the boot code that reads the uncompressed size. 39624fa0402SLasse Collin# Note that the bytes added by size_append will make the xz tool think that 39724fa0402SLasse Collin# the file is corrupt. This is expected. 39824fa0402SLasse Collin# 39924fa0402SLasse Collin# xzmisc doesn't use size_append, so it can be used to create normal .xz 40024fa0402SLasse Collin# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very 40124fa0402SLasse Collin# big dictionary would increase the memory usage too much in the multi-call 40224fa0402SLasse Collin# decompression mode. A BCJ filter isn't used either. 40324fa0402SLasse Collinquiet_cmd_xzkern = XZKERN $@ 404b956c7a6SHarald Seiler cmd_xzkern = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh; \ 405b79c6aa6SMasahiro Yamada $(size_append); } > $@ 40624fa0402SLasse Collin 40724fa0402SLasse Collinquiet_cmd_xzmisc = XZMISC $@ 408b79c6aa6SMasahiro Yamada cmd_xzmisc = cat $(real-prereqs) | xz --check=crc32 --lzma2=dict=1MiB > $@ 409ebf003f0SMatthias Kaehlcke 410ebf003f0SMatthias Kaehlcke# ASM offsets 411ebf003f0SMatthias Kaehlcke# --------------------------------------------------------------------------- 412ebf003f0SMatthias Kaehlcke 413ebf003f0SMatthias Kaehlcke# Default sed regexp - multiline due to syntax constraints 414cf0c3e68SJeroen Hofstee# 415cf0c3e68SJeroen Hofstee# Use [:space:] because LLVM's integrated assembler inserts <tab> around 416cf0c3e68SJeroen Hofstee# the .ascii directive whereas GCC keeps the <space> as-is. 417ebf003f0SMatthias Kaehlckedefine sed-offsets 418cf0c3e68SJeroen Hofstee 's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \ 419cf0c3e68SJeroen Hofstee /^->/{s:->#\(.*\):/* \1 */:; \ 420ebf003f0SMatthias Kaehlcke s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ 421cf0c3e68SJeroen Hofstee s:->::; p;}' 422ebf003f0SMatthias Kaehlckeendef 423ebf003f0SMatthias Kaehlcke 424ebf003f0SMatthias Kaehlcke# Use filechk to avoid rebuilds when a header changes, but the resulting file 425ebf003f0SMatthias Kaehlcke# does not 426ebf003f0SMatthias Kaehlckedefine filechk_offsets 427ebf003f0SMatthias Kaehlcke echo "#ifndef $2"; \ 428ebf003f0SMatthias Kaehlcke echo "#define $2"; \ 429ebf003f0SMatthias Kaehlcke echo "/*"; \ 430ebf003f0SMatthias Kaehlcke echo " * DO NOT MODIFY."; \ 431ebf003f0SMatthias Kaehlcke echo " *"; \ 432ebf003f0SMatthias Kaehlcke echo " * This file was generated by Kbuild"; \ 433ebf003f0SMatthias Kaehlcke echo " */"; \ 434ebf003f0SMatthias Kaehlcke echo ""; \ 43543fee2b2SMasahiro Yamada sed -ne $(sed-offsets) < $<; \ 436ebf003f0SMatthias Kaehlcke echo ""; \ 437ad774086SMasahiro Yamada echo "#endif" 438ebf003f0SMatthias Kaehlckeendef 439