1f77bf014SSam Ravnborg# Backward compatibility 2f77bf014SSam Ravnborgasflags-y += $(EXTRA_AFLAGS) 3f77bf014SSam Ravnborgccflags-y += $(EXTRA_CFLAGS) 4f77bf014SSam Ravnborgcppflags-y += $(EXTRA_CPPFLAGS) 5f77bf014SSam Ravnborgldflags-y += $(EXTRA_LDFLAGS) 6f77bf014SSam Ravnborg 78fdc3fbbSCao jin# flags that take effect in current and sub directories 8*4e13d47cSMasahiro YamadaKBUILD_AFLAGS += $(subdir-asflags-y) 9*4e13d47cSMasahiro YamadaKBUILD_CFLAGS += $(subdir-ccflags-y) 10720097d8SSam Ravnborg 111da177e4SLinus Torvalds# Figure out what we need to build from the various variables 121da177e4SLinus Torvalds# =========================================================================== 131da177e4SLinus Torvalds 141da177e4SLinus Torvalds# When an object is listed to be built compiled-in and modular, 151da177e4SLinus Torvalds# only build the compiled-in version 161da177e4SLinus Torvaldsobj-m := $(filter-out $(obj-y),$(obj-m)) 171da177e4SLinus Torvalds 181da177e4SLinus Torvalds# Libraries are always collected in one lib file. 191da177e4SLinus Torvalds# Filter out objects already built-in 201da177e4SLinus Torvaldslib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m))) 211da177e4SLinus Torvalds 228fdc3fbbSCao jin# Determine modorder. 238fdc3fbbSCao jin# Unfortunately, we don't have information about ordering between -y 248fdc3fbbSCao jin# and -m subdirs. Just put -y's first. 258fdc3fbbSCao jinmodorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko)) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds# Handle objects in subdirs 281da177e4SLinus Torvalds# --------------------------------------------------------------------------- 291da177e4SLinus Torvalds# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o 301da177e4SLinus Torvalds# and add the directory to the list of dirs to descend into: $(subdir-y) 311da177e4SLinus Torvalds# o if we encounter foo/ in $(obj-m), remove it from $(obj-m) 321da177e4SLinus Torvalds# and add the directory to the list of dirs to descend into: $(subdir-m) 331da177e4SLinus Torvalds__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) 341da177e4SLinus Torvaldssubdir-y += $(__subdir-y) 351da177e4SLinus Torvalds__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) 361da177e4SLinus Torvaldssubdir-m += $(__subdir-m) 371da177e4SLinus Torvaldsobj-y := $(patsubst %/, %/built-in.o, $(obj-y)) 381da177e4SLinus Torvaldsobj-m := $(filter-out %/, $(obj-m)) 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds# Subdirectories we need to descend into 411da177e4SLinus Torvaldssubdir-ym := $(sort $(subdir-y) $(subdir-m)) 421da177e4SLinus Torvalds 438fdc3fbbSCao jin# if $(foo-objs), $(foo-y), or $(foo-m) exists, foo.o is a composite object 441da177e4SLinus Torvaldsmulti-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) 45cf4f2193SMichal Marekmulti-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))), $(m)))) 461da177e4SLinus Torvaldsmulti-used := $(multi-used-y) $(multi-used-m) 471da177e4SLinus Torvaldssingle-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m))) 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds# Build list of the parts of our composite objects, our composite 501da177e4SLinus Torvalds# objects depend on those (obviously) 511da177e4SLinus Torvaldsmulti-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y))) 521da177e4SLinus Torvaldsmulti-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y))) 531da177e4SLinus Torvaldsmulti-objs := $(multi-objs-y) $(multi-objs-m) 541da177e4SLinus Torvalds 55f5fb9765SSam Ravnborg# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to 56f5fb9765SSam Ravnborg# tell kbuild to descend 57f5fb9765SSam Ravnborgsubdir-obj-y := $(filter %/built-in.o, $(obj-y)) 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds# $(obj-dirs) is a list of directories that contain object files 604d47dde4S张忠山obj-dirs := $(dir $(multi-objs) $(obj-y)) 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds# Replace multi-part objects by their individual parts, look at local dir only 631da177e4SLinus Torvaldsreal-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) 64cf4f2193SMichal Marekreal-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m))) 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds# Add subdir path 671da177e4SLinus Torvalds 681da177e4SLinus Torvaldsextra-y := $(addprefix $(obj)/,$(extra-y)) 691da177e4SLinus Torvaldsalways := $(addprefix $(obj)/,$(always)) 701da177e4SLinus Torvaldstargets := $(addprefix $(obj)/,$(targets)) 71551559e1STejun Heomodorder := $(addprefix $(obj)/,$(modorder)) 721da177e4SLinus Torvaldsobj-y := $(addprefix $(obj)/,$(obj-y)) 731da177e4SLinus Torvaldsobj-m := $(addprefix $(obj)/,$(obj-m)) 741da177e4SLinus Torvaldslib-y := $(addprefix $(obj)/,$(lib-y)) 751da177e4SLinus Torvaldssubdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) 761da177e4SLinus Torvaldsreal-objs-y := $(addprefix $(obj)/,$(real-objs-y)) 771da177e4SLinus Torvaldsreal-objs-m := $(addprefix $(obj)/,$(real-objs-m)) 781da177e4SLinus Torvaldssingle-used-m := $(addprefix $(obj)/,$(single-used-m)) 791da177e4SLinus Torvaldsmulti-used-y := $(addprefix $(obj)/,$(multi-used-y)) 801da177e4SLinus Torvaldsmulti-used-m := $(addprefix $(obj)/,$(multi-used-m)) 811da177e4SLinus Torvaldsmulti-objs-y := $(addprefix $(obj)/,$(multi-objs-y)) 821da177e4SLinus Torvaldsmulti-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) 831da177e4SLinus Torvaldssubdir-ym := $(addprefix $(obj)/,$(subdir-ym)) 841da177e4SLinus Torvaldsobj-dirs := $(addprefix $(obj)/,$(obj-dirs)) 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds# These flags are needed for modversions and compiling, so we define them here 878fdc3fbbSCao jin# $(modname_flags) defines KBUILD_MODNAME as the name of the module it will 881da177e4SLinus Torvalds# end up in (or would, if it gets compiled in) 895bb0571bSMichal Marek# Note: Files that end up in two or more modules are compiled without the 905bb0571bSMichal Marek# KBUILD_MODNAME definition. The reason is that any made-up name would 915bb0571bSMichal Marek# differ in different configs. 92b42841b7SMichal Marekname-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote) 93b42841b7SMichal Marekbasename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget)) 94f83b5e32SUstyugov Romanmodname_flags = $(if $(filter 1,$(words $(modname))),\ 95b42841b7SMichal Marek -DKBUILD_MODNAME=$(call name-fix,$(modname))) 961da177e4SLinus Torvalds 97*4e13d47cSMasahiro Yamadaorig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \ 98d8672b40SSam Ravnborg $(ccflags-y) $(CFLAGS_$(basetarget).o) 99656ee82cSSteven Rostedt_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags)) 100*4e13d47cSMasahiro Yamadaorig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) \ 101d8672b40SSam Ravnborg $(asflags-y) $(AFLAGS_$(basetarget).o) 102a7e137ebSHeiko Carstens_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags)) 103f77bf014SSam Ravnborg_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F)) 1041da177e4SLinus Torvalds 1052521f2c2SPeter Oberparleiter# 1062521f2c2SPeter Oberparleiter# Enable gcov profiling flags for a file, directory or for all files depending 1072521f2c2SPeter Oberparleiter# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL 1082521f2c2SPeter Oberparleiter# (in this order) 1092521f2c2SPeter Oberparleiter# 1102521f2c2SPeter Oberparleiterifeq ($(CONFIG_GCOV_KERNEL),y) 1112521f2c2SPeter Oberparleiter_c_flags += $(if $(patsubst n%,, \ 1122521f2c2SPeter Oberparleiter $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \ 1132521f2c2SPeter Oberparleiter $(CFLAGS_GCOV)) 1142521f2c2SPeter Oberparleiterendif 1152521f2c2SPeter Oberparleiter 1160b24beccSAndrey Ryabinin# 1170b24beccSAndrey Ryabinin# Enable address sanitizer flags for kernel except some files or directories 1180b24beccSAndrey Ryabinin# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) 1190b24beccSAndrey Ryabinin# 1200b24beccSAndrey Ryabininifeq ($(CONFIG_KASAN),y) 1210b24beccSAndrey Ryabinin_c_flags += $(if $(patsubst n%,, \ 1220b24beccSAndrey Ryabinin $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ 1230b24beccSAndrey Ryabinin $(CFLAGS_KASAN)) 1240b24beccSAndrey Ryabininendif 1250b24beccSAndrey Ryabinin 126c6d30853SAndrey Ryabininifeq ($(CONFIG_UBSAN),y) 127c6d30853SAndrey Ryabinin_c_flags += $(if $(patsubst n%,, \ 128c6d30853SAndrey Ryabinin $(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \ 129c6d30853SAndrey Ryabinin $(CFLAGS_UBSAN)) 130c6d30853SAndrey Ryabininendif 131c6d30853SAndrey Ryabinin 1325c9a8750SDmitry Vyukovifeq ($(CONFIG_KCOV),y) 1335c9a8750SDmitry Vyukov_c_flags += $(if $(patsubst n%,, \ 134a4691deaSVegard Nossum $(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \ 1355c9a8750SDmitry Vyukov $(CFLAGS_KCOV)) 1365c9a8750SDmitry Vyukovendif 1375c9a8750SDmitry Vyukov 1381da177e4SLinus Torvalds# If building the kernel in a separate objtree expand all occurrences 1391da177e4SLinus Torvalds# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvaldsifeq ($(KBUILD_SRC),) 1421da177e4SLinus Torvalds__c_flags = $(_c_flags) 1431da177e4SLinus Torvalds__a_flags = $(_a_flags) 1441da177e4SLinus Torvalds__cpp_flags = $(_cpp_flags) 1451da177e4SLinus Torvaldselse 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds# -I$(obj) locates generated .h files 1481da177e4SLinus Torvalds# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files 1491da177e4SLinus Torvalds# and locates generated .h files 1501da177e4SLinus Torvalds# FIXME: Replace both with specific CFLAGS* statements in the makefiles 1514607ebf0SAllan, Bruce W__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \ 152db547ef1SArnd Bergmann $(call flags,_c_flags) 1531da177e4SLinus Torvalds__a_flags = $(call flags,_a_flags) 1541da177e4SLinus Torvalds__cpp_flags = $(call flags,_cpp_flags) 1551da177e4SLinus Torvaldsendif 1561da177e4SLinus Torvalds 157d8672b40SSam Ravnborgc_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ 1581da177e4SLinus Torvalds $(__c_flags) $(modkern_cflags) \ 159b42841b7SMichal Marek $(basename_flags) $(modname_flags) 1601da177e4SLinus Torvalds 161d8672b40SSam Ravnborga_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ 1621da177e4SLinus Torvalds $(__a_flags) $(modkern_aflags) 1631da177e4SLinus Torvalds 164d8672b40SSam Ravnborgcpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ 165d8672b40SSam Ravnborg $(__cpp_flags) 1661da177e4SLinus Torvalds 167f77bf014SSam Ravnborgld_flags = $(LDFLAGS) $(ldflags-y) 1681da177e4SLinus Torvalds 16950f9ddafSMasahiro YamadaDTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes 17050f9ddafSMasahiro Yamada 171b0a4d8b3SIan Campbelldtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ 17250f9ddafSMasahiro Yamada $(addprefix -I,$(DTC_INCLUDE)) \ 173e570d7c1SStephen Warren -undef -D__DTS__ 174e570d7c1SStephen Warren 1751da177e4SLinus Torvalds# Finds the multi-part object the current object will be linked into 1761da177e4SLinus Torvaldsmodname-multi = $(sort $(foreach m,$(multi-used),\ 1771da177e4SLinus Torvalds $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) 1781da177e4SLinus Torvalds 179c8589d1eSMasahiro Yamada# Useful for describing the dependency of composite objects 180c8589d1eSMasahiro Yamada# Usage: 181c8589d1eSMasahiro Yamada# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) 182c8589d1eSMasahiro Yamadadefine multi_depend 183c8589d1eSMasahiro Yamada$(foreach m, $(notdir $1), \ 184c8589d1eSMasahiro Yamada $(eval $(obj)/$m: \ 185c8589d1eSMasahiro Yamada $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) 186c8589d1eSMasahiro Yamadaendef 187c8589d1eSMasahiro Yamada 1887373f4f8SArnaud Lacombeifdef REGENERATE_PARSERS 1897373f4f8SArnaud Lacombe 1907373f4f8SArnaud Lacombe# LEX 1917373f4f8SArnaud Lacombe# --------------------------------------------------------------------------- 1927373f4f8SArnaud LacombeLEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy) 1937373f4f8SArnaud Lacombe 1947373f4f8SArnaud Lacombequiet_cmd_flex = LEX $@ 1957373f4f8SArnaud Lacombe cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $< 1967373f4f8SArnaud Lacombe 19758238c81SPeter Foley.PRECIOUS: $(src)/%.lex.c_shipped 1987373f4f8SArnaud Lacombe$(src)/%.lex.c_shipped: $(src)/%.l 1997373f4f8SArnaud Lacombe $(call cmd,flex) 2007373f4f8SArnaud Lacombe 2017373f4f8SArnaud Lacombe# YACC 2027373f4f8SArnaud Lacombe# --------------------------------------------------------------------------- 2037373f4f8SArnaud LacombeYACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy) 2047373f4f8SArnaud Lacombe 2057373f4f8SArnaud Lacombequiet_cmd_bison = YACC $@ 2067373f4f8SArnaud Lacombe cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $< 2077373f4f8SArnaud Lacombe 20858238c81SPeter Foley.PRECIOUS: $(src)/%.tab.c_shipped 2097373f4f8SArnaud Lacombe$(src)/%.tab.c_shipped: $(src)/%.y 2107373f4f8SArnaud Lacombe $(call cmd,bison) 2117373f4f8SArnaud Lacombe 2127373f4f8SArnaud Lacombequiet_cmd_bison_h = YACC $@ 2137373f4f8SArnaud Lacombe cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $< 2147373f4f8SArnaud Lacombe 21558238c81SPeter Foley.PRECIOUS: $(src)/%.tab.h_shipped 2167373f4f8SArnaud Lacombe$(src)/%.tab.h_shipped: $(src)/%.y 2177373f4f8SArnaud Lacombe $(call cmd,bison_h) 2187373f4f8SArnaud Lacombe 2197373f4f8SArnaud Lacombeendif 2207373f4f8SArnaud Lacombe 2211da177e4SLinus Torvalds# Shipped files 2221da177e4SLinus Torvalds# =========================================================================== 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvaldsquiet_cmd_shipped = SHIPPED $@ 2251da177e4SLinus Torvaldscmd_shipped = cat $< > $@ 2261da177e4SLinus Torvalds 227991d76c9SArnaud Lacombe$(obj)/%: $(src)/%_shipped 2281da177e4SLinus Torvalds $(call cmd,shipped) 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds# Commands useful for building a boot image 2311da177e4SLinus Torvalds# =========================================================================== 2321da177e4SLinus Torvalds# 2331da177e4SLinus Torvalds# Use as following: 2341da177e4SLinus Torvalds# 2351da177e4SLinus Torvalds# target: source(s) FORCE 2361da177e4SLinus Torvalds# $(if_changed,ld/objcopy/gzip) 2371da177e4SLinus Torvalds# 238836caba7SSam Ravnborg# and add target to extra-y so that we know we have to 2391da177e4SLinus Torvalds# read in the saved command line 2401da177e4SLinus Torvalds 2411da177e4SLinus Torvalds# Linking 2421da177e4SLinus Torvalds# --------------------------------------------------------------------------- 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvaldsquiet_cmd_ld = LD $@ 245f77bf014SSam Ravnborgcmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \ 2461da177e4SLinus Torvalds $(filter-out FORCE,$^) -o $@ 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds# Objcopy 2491da177e4SLinus Torvalds# --------------------------------------------------------------------------- 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvaldsquiet_cmd_objcopy = OBJCOPY $@ 2521da177e4SLinus Torvaldscmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds# Gzip 2551da177e4SLinus Torvalds# --------------------------------------------------------------------------- 2561da177e4SLinus Torvalds 2571da177e4SLinus Torvaldsquiet_cmd_gzip = GZIP $@ 2586ae9ecb8SMichal Marekcmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ 259d3dd3b5aSH. Peter Anvin (rm -f $@ ; false) 2601da177e4SLinus Torvalds 261aab94339SDirk Brandewie# DTC 262aab94339SDirk Brandewie# --------------------------------------------------------------------------- 2636b22b3d1SRob HerringDTC ?= $(objtree)/scripts/dtc/dtc 264aab94339SDirk Brandewie 265bc553986SRob Herring# Disable noisy checks by default 266bc553986SRob Herringifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) 2678654cb8dSRob HerringDTC_FLAGS += -Wno-unit_address_vs_reg \ 2688654cb8dSRob Herring -Wno-simple_bus_reg \ 2698654cb8dSRob Herring -Wno-unit_address_format \ 2708654cb8dSRob Herring -Wno-pci_bridge \ 2718654cb8dSRob Herring -Wno-pci_device_bus_num \ 2728654cb8dSRob Herring -Wno-pci_device_reg 273bc553986SRob Herringendif 274bc553986SRob Herring 2758654cb8dSRob Herringifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),2) 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 $@ 284aab94339SDirk Brandewiecmd_dt_S_dtb= \ 285aab94339SDirk Brandewie( \ 286aab94339SDirk Brandewie echo '\#include <asm-generic/vmlinux.lds.h>'; \ 287aab94339SDirk Brandewie echo '.section .dtb.init.rodata,"a"'; \ 288aab94339SDirk Brandewie echo '.balign STRUCT_ALIGNMENT'; \ 289aab94339SDirk Brandewie echo '.global __dtb_$(*F)_begin'; \ 290aab94339SDirk Brandewie echo '__dtb_$(*F)_begin:'; \ 291aab94339SDirk Brandewie echo '.incbin "$<" '; \ 292aab94339SDirk Brandewie echo '__dtb_$(*F)_end:'; \ 293aab94339SDirk Brandewie echo '.global __dtb_$(*F)_end'; \ 294aab94339SDirk Brandewie echo '.balign STRUCT_ALIGNMENT'; \ 295aab94339SDirk Brandewie) > $@ 296aab94339SDirk Brandewie 297aab94339SDirk Brandewie$(obj)/%.dtb.S: $(obj)/%.dtb 298aab94339SDirk Brandewie $(call cmd,dt_S_dtb) 299aab94339SDirk Brandewie 300aab94339SDirk Brandewiequiet_cmd_dtc = DTC $@ 30177479b38SNathan Rossicmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ 30277479b38SNathan Rossi $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ 3036b22b3d1SRob Herring $(DTC) -O dtb -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 > $(depfile) 3071da177e4SLinus Torvalds 30890b335fbSStephen Warren$(obj)/%.dtb: $(src)/%.dts FORCE 30990b335fbSStephen Warren $(call if_changed_dep,dtc) 31090b335fbSStephen Warren 311b0a4d8b3SIan Campbelldtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) 31222435f38SStephen Warren 313bc22c17eSAlain Knaff# Bzip2 314bc22c17eSAlain Knaff# --------------------------------------------------------------------------- 315bc22c17eSAlain Knaff 316d3dd3b5aSH. Peter Anvin# Bzip2 and LZMA do not include size in file... so we have to fake that; 317d3dd3b5aSH. Peter Anvin# append the size as a 32-bit littleendian number as gzip does. 3184a2ff67cSMichael Tokarevsize_append = printf $(shell \ 319d3dd3b5aSH. Peter Anvindec_size=0; \ 320d3dd3b5aSH. Peter Anvinfor F in $1; do \ 321d3dd3b5aSH. Peter Anvin fsize=$$(stat -c "%s" $$F); \ 322d3dd3b5aSH. Peter Anvin dec_size=$$(expr $$dec_size + $$fsize); \ 323d3dd3b5aSH. Peter Anvindone; \ 3241373411aSJonathan Niederprintf "%08x\n" $$dec_size | \ 3251373411aSJonathan Nieder sed 's/\(..\)/\1 /g' | { \ 3261373411aSJonathan Nieder read ch0 ch1 ch2 ch3; \ 3271373411aSJonathan Nieder for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ 3281373411aSJonathan Nieder printf '%s%03o' '\\' $$((0x$$ch)); \ 3291373411aSJonathan Nieder done; \ 3301373411aSJonathan Nieder } \ 331d3dd3b5aSH. Peter Anvin) 332bc22c17eSAlain Knaff 333bc22c17eSAlain Knaffquiet_cmd_bzip2 = BZIP2 $@ 334d3dd3b5aSH. Peter Anvincmd_bzip2 = (cat $(filter-out FORCE,$^) | \ 335d3dd3b5aSH. Peter Anvin bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 336d3dd3b5aSH. Peter Anvin (rm -f $@ ; false) 337bc22c17eSAlain Knaff 338bc22c17eSAlain Knaff# Lzma 339bc22c17eSAlain Knaff# --------------------------------------------------------------------------- 340bc22c17eSAlain Knaff 341bc22c17eSAlain Knaffquiet_cmd_lzma = LZMA $@ 342d3dd3b5aSH. Peter Anvincmd_lzma = (cat $(filter-out FORCE,$^) | \ 343d3dd3b5aSH. Peter Anvin lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 344d3dd3b5aSH. Peter Anvin (rm -f $@ ; false) 3457dd65febSAlbin Tonnerre 3467dd65febSAlbin Tonnerrequiet_cmd_lzo = LZO $@ 3477dd65febSAlbin Tonnerrecmd_lzo = (cat $(filter-out FORCE,$^) | \ 3487dd65febSAlbin Tonnerre lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 3497dd65febSAlbin Tonnerre (rm -f $@ ; false) 350d61931d8SBorislav Petkov 351e76e1fdfSKyungsik Leequiet_cmd_lz4 = LZ4 $@ 352e76e1fdfSKyungsik Leecmd_lz4 = (cat $(filter-out FORCE,$^) | \ 353e76e1fdfSKyungsik Lee lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 354e76e1fdfSKyungsik Lee (rm -f $@ ; false) 355e76e1fdfSKyungsik Lee 356e3393645SStephen Warren# U-Boot mkimage 357e3393645SStephen Warren# --------------------------------------------------------------------------- 358e3393645SStephen Warren 359e3393645SStephen WarrenMKIMAGE := $(srctree)/scripts/mkuboot.sh 360e3393645SStephen Warren 361e3393645SStephen Warren# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces 362e3393645SStephen Warren# the number of overrides in arch makefiles 363e3393645SStephen WarrenUIMAGE_ARCH ?= $(SRCARCH) 364e3393645SStephen WarrenUIMAGE_COMPRESSION ?= $(if $(2),$(2),none) 365e3393645SStephen WarrenUIMAGE_OPTS-y ?= 366e3393645SStephen WarrenUIMAGE_TYPE ?= kernel 367e3393645SStephen WarrenUIMAGE_LOADADDR ?= arch_must_set_this 368e3393645SStephen WarrenUIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) 369e3393645SStephen WarrenUIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' 370e3393645SStephen WarrenUIMAGE_IN ?= $< 371e3393645SStephen WarrenUIMAGE_OUT ?= $@ 372e3393645SStephen Warren 373e3393645SStephen Warrenquiet_cmd_uimage = UIMAGE $(UIMAGE_OUT) 374e3393645SStephen Warren cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ 375e3393645SStephen Warren -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ 376e3393645SStephen Warren -T $(UIMAGE_TYPE) \ 377e3393645SStephen Warren -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ 378e3393645SStephen Warren -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT) 379e3393645SStephen Warren 38024fa0402SLasse Collin# XZ 38124fa0402SLasse Collin# --------------------------------------------------------------------------- 38224fa0402SLasse Collin# Use xzkern to compress the kernel image and xzmisc to compress other things. 38324fa0402SLasse Collin# 38424fa0402SLasse Collin# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage 38524fa0402SLasse Collin# of the kernel decompressor. A BCJ filter is used if it is available for 38624fa0402SLasse Collin# the target architecture. xzkern also appends uncompressed size of the data 38724fa0402SLasse Collin# using size_append. The .xz format has the size information available at 38824fa0402SLasse Collin# the end of the file too, but it's in more complex format and it's good to 38924fa0402SLasse Collin# avoid changing the part of the boot code that reads the uncompressed size. 39024fa0402SLasse Collin# Note that the bytes added by size_append will make the xz tool think that 39124fa0402SLasse Collin# the file is corrupt. This is expected. 39224fa0402SLasse Collin# 39324fa0402SLasse Collin# xzmisc doesn't use size_append, so it can be used to create normal .xz 39424fa0402SLasse Collin# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very 39524fa0402SLasse Collin# big dictionary would increase the memory usage too much in the multi-call 39624fa0402SLasse Collin# decompression mode. A BCJ filter isn't used either. 39724fa0402SLasse Collinquiet_cmd_xzkern = XZKERN $@ 39824fa0402SLasse Collincmd_xzkern = (cat $(filter-out FORCE,$^) | \ 39924fa0402SLasse Collin sh $(srctree)/scripts/xz_wrap.sh && \ 40024fa0402SLasse Collin $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 40124fa0402SLasse Collin (rm -f $@ ; false) 40224fa0402SLasse Collin 40324fa0402SLasse Collinquiet_cmd_xzmisc = XZMISC $@ 40424fa0402SLasse Collincmd_xzmisc = (cat $(filter-out FORCE,$^) | \ 40524fa0402SLasse Collin xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ 40624fa0402SLasse Collin (rm -f $@ ; false) 407ebf003f0SMatthias Kaehlcke 408ebf003f0SMatthias Kaehlcke# ASM offsets 409ebf003f0SMatthias Kaehlcke# --------------------------------------------------------------------------- 410ebf003f0SMatthias Kaehlcke 411ebf003f0SMatthias Kaehlcke# Default sed regexp - multiline due to syntax constraints 412cf0c3e68SJeroen Hofstee# 413cf0c3e68SJeroen Hofstee# Use [:space:] because LLVM's integrated assembler inserts <tab> around 414cf0c3e68SJeroen Hofstee# the .ascii directive whereas GCC keeps the <space> as-is. 415ebf003f0SMatthias Kaehlckedefine sed-offsets 416cf0c3e68SJeroen Hofstee 's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \ 417cf0c3e68SJeroen Hofstee /^->/{s:->#\(.*\):/* \1 */:; \ 418ebf003f0SMatthias Kaehlcke s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ 419cf0c3e68SJeroen Hofstee s:->::; p;}' 420ebf003f0SMatthias Kaehlckeendef 421ebf003f0SMatthias Kaehlcke 422ebf003f0SMatthias Kaehlcke# Use filechk to avoid rebuilds when a header changes, but the resulting file 423ebf003f0SMatthias Kaehlcke# does not 424ebf003f0SMatthias Kaehlckedefine filechk_offsets 425ebf003f0SMatthias Kaehlcke (set -e; \ 426ebf003f0SMatthias Kaehlcke echo "#ifndef $2"; \ 427ebf003f0SMatthias Kaehlcke echo "#define $2"; \ 428ebf003f0SMatthias Kaehlcke echo "/*"; \ 429ebf003f0SMatthias Kaehlcke echo " * DO NOT MODIFY."; \ 430ebf003f0SMatthias Kaehlcke echo " *"; \ 431ebf003f0SMatthias Kaehlcke echo " * This file was generated by Kbuild"; \ 432ebf003f0SMatthias Kaehlcke echo " */"; \ 433ebf003f0SMatthias Kaehlcke echo ""; \ 434ebf003f0SMatthias Kaehlcke sed -ne $(sed-offsets); \ 435ebf003f0SMatthias Kaehlcke echo ""; \ 436ebf003f0SMatthias Kaehlcke echo "#endif" ) 437ebf003f0SMatthias Kaehlckeendef 438