diff options
Diffstat (limited to 'roms/u-boot/scripts/Makefile.lib')
| -rw-r--r-- | roms/u-boot/scripts/Makefile.lib | 606 |
1 files changed, 606 insertions, 0 deletions
diff --git a/roms/u-boot/scripts/Makefile.lib b/roms/u-boot/scripts/Makefile.lib new file mode 100644 index 000000000..78bbebe7e --- /dev/null +++ b/roms/u-boot/scripts/Makefile.lib @@ -0,0 +1,606 @@ +# SPDX-License-Identifier: GPL-2.0 +# Backward compatibility +asflags-y += $(EXTRA_AFLAGS) +ccflags-y += $(EXTRA_CFLAGS) +cppflags-y += $(EXTRA_CPPFLAGS) +ldflags-y += $(EXTRA_LDFLAGS) + +# +# flags that take effect in sub directories +export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y) +export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y) + +# Figure out what we need to build from the various variables +# =========================================================================== + +# When an object is listed to be built compiled-in and modular, +# only build the compiled-in version + +obj-m := $(filter-out $(obj-y),$(obj-m)) + +# Libraries are always collected in one lib file. +# Filter out objects already built-in + +lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m))) + + +# Handle objects in subdirs +# --------------------------------------------------------------------------- +# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o +# and add the directory to the list of dirs to descend into: $(subdir-y) +# o if we encounter foo/ in $(obj-m), remove it from $(obj-m) +# and add the directory to the list of dirs to descend into: $(subdir-m) + +# Determine modorder. +# Unfortunately, we don't have information about ordering between -y +# and -m subdirs. Just put -y's first. +modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko)) + +__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) +subdir-y += $(__subdir-y) +__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) +subdir-m += $(__subdir-m) +obj-y := $(patsubst %/, %/built-in.o, $(obj-y)) +obj-m := $(filter-out %/, $(obj-m)) + +# Subdirectories we need to descend into + +subdir-ym := $(sort $(subdir-y) $(subdir-m)) + +# if $(foo-objs) exists, foo.o is a composite object +multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) +multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) +multi-used := $(multi-used-y) $(multi-used-m) +single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m))) + +# Build list of the parts of our composite objects, our composite +# objects depend on those (obviously) +multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y))) +multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y))) + +# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to +# tell kbuild to descend +subdir-obj-y := $(filter %/built-in.o, $(obj-y)) + +# Replace multi-part objects by their individual parts, look at local dir only +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) +real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) + +# Add subdir path + +extra-y := $(addprefix $(obj)/,$(extra-y)) +always := $(addprefix $(obj)/,$(always)) +targets := $(addprefix $(obj)/,$(targets)) +modorder := $(addprefix $(obj)/,$(modorder)) +obj-y := $(addprefix $(obj)/,$(obj-y)) +obj-m := $(addprefix $(obj)/,$(obj-m)) +lib-y := $(addprefix $(obj)/,$(lib-y)) +subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) +real-objs-y := $(addprefix $(obj)/,$(real-objs-y)) +real-objs-m := $(addprefix $(obj)/,$(real-objs-m)) +single-used-m := $(addprefix $(obj)/,$(single-used-m)) +multi-used-y := $(addprefix $(obj)/,$(multi-used-y)) +multi-used-m := $(addprefix $(obj)/,$(multi-used-m)) +multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y)) +multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) +subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) + +# These flags are needed for modversions and compiling, so we define them here +# already +# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will +# end up in (or would, if it gets compiled in) +# Note: Files that end up in two or more modules are compiled without the +# KBUILD_MODNAME definition. The reason is that any made-up name would +# differ in different configs. +name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote) +basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget)) +modname_flags = $(if $(filter 1,$(words $(modname))),\ + -DKBUILD_MODNAME=$(call name-fix,$(modname))) + +orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \ + $(ccflags-y) $(CFLAGS_$(basetarget).o) +_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags)) +orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \ + $(asflags-y) $(AFLAGS_$(basetarget).o) +_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags)) +_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F)) + +# +# Enable gcov profiling flags for a file, directory or for all files depending +# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL +# (in this order) +# +ifeq ($(CONFIG_GCOV_KERNEL),y) +_c_flags += $(if $(patsubst n%,, \ + $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \ + $(CFLAGS_GCOV)) +endif + +# +# Enable address sanitizer flags for kernel except some files or directories +# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) +# +ifeq ($(CONFIG_KASAN),y) +_c_flags += $(if $(patsubst n%,, \ + $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ + $(CFLAGS_KASAN)) +endif + +# If building the kernel in a separate objtree expand all occurrences +# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). + +ifeq ($(KBUILD_SRC),) +__c_flags = $(_c_flags) +__a_flags = $(_a_flags) +__cpp_flags = $(_cpp_flags) +else + +# -I$(obj) locates generated .h files +# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files +# and locates generated .h files +# FIXME: Replace both with specific CFLAGS* statements in the makefiles +__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \ + $(call flags,_c_flags) +__a_flags = $(call flags,_a_flags) +__cpp_flags = $(call flags,_cpp_flags) +endif + +# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE +c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ + $(__c_flags) $(modkern_cflags) \ + $(basename_flags) $(modname_flags) + +a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ + $(__a_flags) $(modkern_aflags) + +cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ + $(__cpp_flags) + +ld_flags = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) + +# Try these files in order to find the U-Boot-specific .dtsi include file +u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \ + $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \ + $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \ + $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \ + $(wildcard $(dir $<)u-boot.dtsi)) + +u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \ + $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \ + $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \ + $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \ + $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \ + $(dir $<)u-boot.dtsi ... \ + found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!)) + +# Uncomment for debugging +# This shows all the files that were considered and the one that we chose. +# u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw) + +# We use the first match +u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \ + $(notdir $(firstword $(u_boot_dtsi_options)))) + +# Modified for U-Boot +dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ + -I$(srctree)/arch/$(ARCH)/dts \ + -I$(srctree)/arch/$(ARCH)/dts/include \ + -Iinclude \ + -I$(srctree)/include \ + -I$(srctree)/arch/$(ARCH)/include \ + -include $(srctree)/include/linux/kconfig.h \ + -D__ASSEMBLY__ \ + -undef -D__DTS__ + +# Finds the multi-part object the current object will be linked into +modname-multi = $(sort $(foreach m,$(multi-used),\ + $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) + +# Useful for describing the dependency of composite objects +# Usage: +# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) +define multi_depend +$(foreach m, $(notdir $1), \ + $(eval $(obj)/$m: \ + $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) +endef + +# LEX +# --------------------------------------------------------------------------- +quiet_cmd_flex = LEX $@ + cmd_flex = $(LEX) -o$@ -L $< + +$(obj)/%.lex.c: $(src)/%.l FORCE + $(call if_changed,flex) + +# YACC +# --------------------------------------------------------------------------- +quiet_cmd_bison = YACC $@ + cmd_bison = $(YACC) -o$@ -t -l $< + +$(obj)/%.tab.c: $(src)/%.y FORCE + $(call if_changed,bison) + +quiet_cmd_bison_h = YACC $@ + cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $< + +$(obj)/%.tab.h: $(src)/%.y FORCE + $(call if_changed,bison_h) + +# Shipped files +# =========================================================================== + +quiet_cmd_shipped = SHIPPED $@ +cmd_shipped = cat $< > $@ + +$(obj)/%: $(src)/%_shipped + $(call cmd,shipped) + +# Commands useful for building a boot image +# =========================================================================== +# +# Use as following: +# +# target: source(s) FORCE +# $(if_changed,ld/objcopy/gzip) +# +# and add target to extra-y so that we know we have to +# read in the saved command line + +# Linking +# --------------------------------------------------------------------------- + +quiet_cmd_ld = LD $@ +cmd_ld = $(LD) $(ld_flags) $(filter-out FORCE,$^) -o $@ + +# Objcopy +# --------------------------------------------------------------------------- + +quiet_cmd_objcopy = OBJCOPY $@ +cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ + +# Gzip +# --------------------------------------------------------------------------- + +quiet_cmd_gzip = GZIP $@ +cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ + (rm -f $@ ; false) + +# DTC +# --------------------------------------------------------------------------- + +# Disable noisy checks by default +ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),) +DTC_FLAGS += -Wno-unit_address_vs_reg \ + -Wno-unit_address_format \ + -Wno-avoid_unnecessary_addr_size \ + -Wno-alias_paths \ + -Wno-graph_child_address \ + -Wno-graph_port \ + -Wno-unique_unit_address \ + -Wno-simple_bus_reg \ + -Wno-pci_device_reg + +# U-Boot specific disables +DTC_FLAGS += -Wno-pci_bridge \ + -Wno-pci_device_bus_num +endif + +ifneq ($(findstring 2,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),) +DTC_FLAGS += -Wnode_name_chars_strict \ + -Wproperty_name_chars_strict +endif + +DTC_FLAGS += $(DTC_FLAGS_$(basetarget)) + +# Generate an assembly file to wrap the output of the device tree compiler +quiet_cmd_dt_S_dtb= DTB $@ +# Modified for U-Boot +cmd_dt_S_dtb= \ +( \ + echo '.section .dtb.init.rodata,"a"'; \ + echo '.balign 16'; \ + echo '.global __dtb_$(subst -,_,$(*F))_begin'; \ + echo '__dtb_$(subst -,_,$(*F))_begin:'; \ + echo '.incbin "$<" '; \ + echo '__dtb_$(subst -,_,$(*F))_end:'; \ + echo '.global __dtb_$(subst -,_,$(*F))_end'; \ + echo '.balign 16'; \ +) > $@ + +$(obj)/%.dtb.S: $(obj)/%.dtb + $(call cmd,dt_S_dtb) + +ifeq ($(CONFIG_OF_LIBFDT_OVERLAY),y) +DTC_FLAGS += -@ +endif + +quiet_cmd_dtc = DTC $@ +# Modified for U-Boot +# Bring in any U-Boot-specific include at the end of the file +cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ + (cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \ + $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \ + $(DTC) -O dtb -o $@ -b 0 \ + -i $(dir $<) $(DTC_FLAGS) \ + -d $(depfile).dtc.tmp $(dtc-tmp) || \ + (echo "Check $(shell pwd)/$(pre-tmp) for errors" && false) \ + ; \ + sed "s:$(pre-tmp):$(<):" $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) + +$(obj)/%.dtb: $(src)/%.dts FORCE + $(call if_changed_dep,dtc) + +pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp) +dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) + +# DTCO +# --------------------------------------------------------------------------- + +quiet_cmd_dtco = DTCO $@ +# Rule for objects only; does not put specific u-boot include at the end +# No generation of assembly file either +# Modified for U-Boot +cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \ + $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ + $(DTC) -@ -O dtb -o $@ -b 0 \ + -i $(dir $<) $(DTC_FLAGS) \ + -d $(depfile).dtc.tmp $(dtc-tmp) ; \ + cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) + +$(obj)/%.dtbo: $(src)/%.dts FORCE + $(call if_changed_dep,dtco) + +# Fonts +# --------------------------------------------------------------------------- + +# Generate an assembly file to wrap the font data +quiet_cmd_S_ttf= TTF $@ +# Modified for U-Boot +cmd_S_ttf= \ +( \ + echo '.section .rodata.ttf.init,"a"'; \ + echo '.balign 16'; \ + echo '.global __ttf_$(*F)_begin'; \ + echo '__ttf_$(*F)_begin:'; \ + echo '.incbin "$<" '; \ + echo '__ttf_$(*F)_end:'; \ + echo '.global __ttf_$(*F)_end'; \ + echo '.balign 16'; \ +) > $@ + +$(obj)/%.S: $(src)/%.ttf + $(call cmd,S_ttf) + +# EFI applications +# A Makefile target *.efi is built as EFI application. +# A Makefile target *_efi.S wraps *.efi as built-in EFI application. +# --------------------------------------------------------------------------- + +# Generate an assembly file to wrap the EFI app +cmd_S_efi= \ +( \ + echo '.section .rodata.$*.init,"a"'; \ + echo '.balign 16'; \ + echo '.global __efi_$*_begin'; \ + echo '__efi_$*_begin:'; \ + echo '.incbin "$<" '; \ + echo '__efi_$*_end:'; \ + echo '.global __efi_$*_end'; \ + echo '.balign 16'; \ +) > $@ + +$(obj)/%_efi.S: $(obj)/%.efi + $(call cmd,S_efi) + +quiet_cmd_efi_objcopy = OBJCOPY $@ +cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \ + .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \ + $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@ + +$(obj)/%.efi: $(obj)/%_efi.so + $(call cmd,efi_objcopy) + +quiet_cmd_efi_ld = LD $@ +cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \ + -Bsymbolic -s $^ -o $@ + +EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS) + +$(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S) FORCE + $(call if_changed_dep,as_o_S) + +$(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE + $(call cmd,force_checksrc) + $(call if_changed_rule,cc_o_c) + +$(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o + $(call cmd,efi_ld) + +targets += $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o + +CFLAGS_REMOVE_efi_reloc.o := $(LTO_CFLAGS) +CFLAGS_REMOVE_efi_freestanding.o := $(LTO_CFLAGS) + +# ACPI +# --------------------------------------------------------------------------- +# +# This first sends the file (typically dsdt.asl) through the preprocessor +# resolve includes and any CONFIG options used. This produces dsdt.asl.tmp +# which is pure ASL code. The Intel ASL (ACPI (Advanced Configuration and Power +# Interface) Source Language compiler (iasl) then converts this ASL code into a +# C file containing the hex data to build into U-Boot. This file is called +# dsdt.hex (despite us setting the prefix to .../dsdt.asl.tmp) so must be +# renamed to dsdt.c for consumption by the build system. +ASL_TMP = $(patsubst %.c,%.asl.tmp,$@) + +quiet_cmd_acpi_c_asl= ASL $< +cmd_acpi_c_asl= \ + $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -D__ACPI__ \ + -P $(UBOOTINCLUDE) -o $(ASL_TMP) $< && \ + iasl -p $@ -tc $(ASL_TMP) $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \ + mv $(patsubst %.c,%.hex,$@) $@ + +$(obj)/dsdt.c: $(src)/dsdt.asl + $(call cmd,acpi_c_asl) + $(Q)sed -i -e "s,dsdt_aml_code,AmlCode," $@ + +# Bzip2 +# --------------------------------------------------------------------------- + +# Bzip2 and LZMA do not include size in file... so we have to fake that; +# append the size as a 32-bit littleendian number as gzip does. +size_append = printf $(shell \ +dec_size=0; \ +for F in $1; do \ + fsize=$$(stat -c "%s" $$F); \ + dec_size=$$(expr $$dec_size + $$fsize); \ +done; \ +printf "%08x\n" $$dec_size | \ + sed 's/\(..\)/\1 /g' | { \ + read ch0 ch1 ch2 ch3; \ + for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ + printf '%s%03o' '\\' $$((0x$$ch)); \ + done; \ + } \ +) + +quiet_cmd_bzip2 = BZIP2 $@ +cmd_bzip2 = (cat $(filter-out FORCE,$^) | \ + bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) + +# Lzma +# --------------------------------------------------------------------------- + +quiet_cmd_lzma = LZMA $@ +cmd_lzma = (cat $(filter-out FORCE,$^) | \ + lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) + +quiet_cmd_lzo = LZO $@ +cmd_lzo = (cat $(filter-out FORCE,$^) | \ + lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) + +quiet_cmd_lz4 = LZ4 $@ +cmd_lz4 = (cat $(filter-out FORCE,$^) | \ + lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) + +# U-Boot mkimage +# --------------------------------------------------------------------------- + +MKIMAGE := $(srctree)/scripts/mkuboot.sh + +# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces +# the number of overrides in arch makefiles +UIMAGE_ARCH ?= $(SRCARCH) +UIMAGE_COMPRESSION ?= $(if $(2),$(2),none) +UIMAGE_OPTS-y ?= +UIMAGE_TYPE ?= kernel +UIMAGE_LOADADDR ?= arch_must_set_this +UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) +UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' +UIMAGE_IN ?= $< +UIMAGE_OUT ?= $@ + +quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT) + cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ + -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ + -T $(UIMAGE_TYPE) \ + -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ + -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT) + +# XZ +# --------------------------------------------------------------------------- +# Use xzkern to compress the kernel image and xzmisc to compress other things. +# +# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage +# of the kernel decompressor. A BCJ filter is used if it is available for +# the target architecture. xzkern also appends uncompressed size of the data +# using size_append. The .xz format has the size information available at +# the end of the file too, but it's in more complex format and it's good to +# avoid changing the part of the boot code that reads the uncompressed size. +# Note that the bytes added by size_append will make the xz tool think that +# the file is corrupt. This is expected. +# +# xzmisc doesn't use size_append, so it can be used to create normal .xz +# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very +# big dictionary would increase the memory usage too much in the multi-call +# decompression mode. A BCJ filter isn't used either. +quiet_cmd_xzkern = XZKERN $@ +cmd_xzkern = (cat $(filter-out FORCE,$^) | \ + sh $(srctree)/scripts/xz_wrap.sh && \ + $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) + +quiet_cmd_xzmisc = XZMISC $@ +cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ + xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ + (rm -f $@ ; false) + +# Additional commands for U-Boot +# +# mkimage +# --------------------------------------------------------------------------- +MKIMAGEOUTPUT ?= /dev/null +quiet_cmd_mkimage = MKIMAGE $@ +cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ + >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) + +# fdtgrep +# --------------------------------------------------------------------------- +# Pass the original device tree file through fdtgrep twice. The first pass +# removes any unwanted nodes (i.e. those which don't have the +# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second +# pass removes various unused properties from the remaining nodes. +# The output is typically a much smaller device tree file. +ifeq ($(CONFIG_TPL_BUILD),y) +fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl +else +fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl +endif +quiet_cmd_fdtgrep = FDTGREP $@ + cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \ + -n /chosen -n /config -O dtb | \ + $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \ + -P u-boot,dm-pre-reloc -P u-boot,dm-spl -P u-boot,dm-tpl \ + $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS))) + +# fdt_rm_props +# --------------------------------------------------------------------------- +# Pass the original device tree file through fdtgrep. This removes various +# unused properties. The output is typically a smaller device tree file. +quiet_cmd_fdt_rm_props = FDTGREP $@ + cmd_fdt_rm_props = cat $< | $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \ + $(addprefix -P ,$(subst $\",,$(CONFIG_OF_REMOVE_PROPS))) + +# ASM offsets +# --------------------------------------------------------------------------- + +# Default sed regexp - multiline due to syntax constraints +define sed-offsets + "s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \ + /^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +# Use filechk to avoid rebuilds when a header changes, but the resulting file +# does not +define filechk_offsets + (set -e; \ + echo "#ifndef $2"; \ + echo "#define $2"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-offsets); \ + echo ""; \ + echo "#endif" ) +endef |