a8d52f9a9b
When linking EFI binaries the linker emits:
ld.bfd: warning: lib/efi_loader/efi_crt0.o:
missing .note.GNU-stack section implies executable stack
Suppress the warning.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
642 lines
23 KiB
Makefile
642 lines
23 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Backward compatibility
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asflags-y += $(EXTRA_AFLAGS)
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ccflags-y += $(EXTRA_CFLAGS)
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cppflags-y += $(EXTRA_CPPFLAGS)
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ldflags-y += $(EXTRA_LDFLAGS)
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#
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# flags that take effect in sub directories
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export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
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export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
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# Figure out what we need to build from the various variables
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# ===========================================================================
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# When an object is listed to be built compiled-in and modular,
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# only build the compiled-in version
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obj-m := $(filter-out $(obj-y),$(obj-m))
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# Libraries are always collected in one lib file.
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# Filter out objects already built-in
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lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
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# Handle objects in subdirs
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# ---------------------------------------------------------------------------
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# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
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# and add the directory to the list of dirs to descend into: $(subdir-y)
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# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
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# and add the directory to the list of dirs to descend into: $(subdir-m)
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# Determine modorder.
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# Unfortunately, we don't have information about ordering between -y
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# and -m subdirs. Just put -y's first.
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modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
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__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
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subdir-y += $(__subdir-y)
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__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
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subdir-m += $(__subdir-m)
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obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
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obj-m := $(filter-out %/, $(obj-m))
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# Subdirectories we need to descend into
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subdir-ym := $(sort $(subdir-y) $(subdir-m))
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# if $(foo-objs) exists, foo.o is a composite object
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multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
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multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
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multi-used := $(multi-used-y) $(multi-used-m)
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single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
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# Build list of the parts of our composite objects, our composite
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# objects depend on those (obviously)
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multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
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multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
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# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
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# tell kbuild to descend
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subdir-obj-y := $(filter %/built-in.o, $(obj-y))
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# Replace multi-part objects by their individual parts, look at local dir only
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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)
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real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
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# Add subdir path
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extra-y := $(addprefix $(obj)/,$(extra-y))
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always := $(addprefix $(obj)/,$(always))
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targets := $(addprefix $(obj)/,$(targets))
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modorder := $(addprefix $(obj)/,$(modorder))
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obj-y := $(addprefix $(obj)/,$(obj-y))
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obj-m := $(addprefix $(obj)/,$(obj-m))
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lib-y := $(addprefix $(obj)/,$(lib-y))
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subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
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real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
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real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
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single-used-m := $(addprefix $(obj)/,$(single-used-m))
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multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
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multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
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multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
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multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
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subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
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# These flags are needed for modversions and compiling, so we define them here
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# already
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# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
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# end up in (or would, if it gets compiled in)
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# Note: Files that end up in two or more modules are compiled without the
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# KBUILD_MODNAME definition. The reason is that any made-up name would
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# differ in different configs.
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name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote)
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basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
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modname_flags = $(if $(filter 1,$(words $(modname))),\
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-DKBUILD_MODNAME=$(call name-fix,$(modname)))
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orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
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$(ccflags-y) $(CFLAGS_$(basetarget).o)
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_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
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orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
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$(asflags-y) $(AFLAGS_$(basetarget).o)
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_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
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_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
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#
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# Enable gcov profiling flags for a file, directory or for all files depending
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# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
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# (in this order)
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#
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ifeq ($(CONFIG_GCOV_KERNEL),y)
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_c_flags += $(if $(patsubst n%,, \
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$(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
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$(CFLAGS_GCOV))
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endif
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#
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# Enable address sanitizer flags for kernel except some files or directories
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# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
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#
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ifeq ($(CONFIG_KASAN),y)
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_c_flags += $(if $(patsubst n%,, \
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$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
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$(CFLAGS_KASAN))
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endif
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# If building the kernel in a separate objtree expand all occurrences
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# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
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ifeq ($(KBUILD_SRC),)
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__c_flags = $(_c_flags)
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__a_flags = $(_a_flags)
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__cpp_flags = $(_cpp_flags)
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else
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# -I$(obj) locates generated .h files
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# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
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# and locates generated .h files
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# FIXME: Replace both with specific CFLAGS* statements in the makefiles
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__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \
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$(call flags,_c_flags)
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__a_flags = $(call flags,_a_flags)
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__cpp_flags = $(call flags,_cpp_flags)
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endif
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# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
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c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
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$(__c_flags) $(modkern_cflags) \
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$(basename_flags) $(modname_flags)
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a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
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$(__a_flags) $(modkern_aflags)
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cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
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$(__cpp_flags)
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ld_flags = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
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# Try these files in order to find the U-Boot-specific .dtsi include file
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u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
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$(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
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$(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
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$(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
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$(wildcard $(dir $<)u-boot.dtsi))
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u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
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$(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
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$(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
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$(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
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$(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
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$(dir $<)u-boot.dtsi ... \
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found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
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# Uncomment for debugging
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# This shows all the files that were considered and the one that we chose.
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ifdef DEVICE_TREE_DEBUG
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u_boot_dtsi_options_debug = $(warning $(u_boot_dtsi_options_raw))
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endif
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# We use the first match
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u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
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$(notdir $(firstword $(u_boot_dtsi_options))))
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# Modified for U-Boot
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dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
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$(UBOOTINCLUDE) \
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-I$(srctree)/arch/$(ARCH)/dts \
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-I$(srctree)/arch/$(ARCH)/dts/include \
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-I$(srctree)/include \
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-D__ASSEMBLY__ \
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-undef -D__DTS__
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# Finds the multi-part object the current object will be linked into
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modname-multi = $(sort $(foreach m,$(multi-used),\
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$(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
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# Useful for describing the dependency of composite objects
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# Usage:
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# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
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define multi_depend
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$(foreach m, $(notdir $1), \
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$(eval $(obj)/$m: \
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$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
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endef
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# LEX
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# ---------------------------------------------------------------------------
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quiet_cmd_flex = LEX $@
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cmd_flex = $(LEX) -o$@ -L $<
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$(obj)/%.lex.c: $(src)/%.l FORCE
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$(call if_changed,flex)
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# YACC
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# ---------------------------------------------------------------------------
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quiet_cmd_bison = YACC $@
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cmd_bison = $(YACC) -o$@ -t -l $<
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$(obj)/%.tab.c: $(src)/%.y FORCE
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$(call if_changed,bison)
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quiet_cmd_bison_h = YACC $@
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cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
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$(obj)/%.tab.h: $(src)/%.y FORCE
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$(call if_changed,bison_h)
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# Shipped files
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# ===========================================================================
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quiet_cmd_shipped = SHIPPED $@
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cmd_shipped = cat $< > $@
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$(obj)/%: $(src)/%_shipped
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$(call cmd,shipped)
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# Commands useful for building a boot image
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# ===========================================================================
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#
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# Use as following:
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#
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# target: source(s) FORCE
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# $(if_changed,ld/objcopy/gzip)
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#
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# and add target to extra-y so that we know we have to
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# read in the saved command line
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# Linking
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# ---------------------------------------------------------------------------
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quiet_cmd_ld = LD $@
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cmd_ld = $(LD) $(ld_flags) $(filter-out FORCE,$^) -o $@
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# Objcopy
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# ---------------------------------------------------------------------------
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quiet_cmd_objcopy = OBJCOPY $@
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cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
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# Gzip
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# ---------------------------------------------------------------------------
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quiet_cmd_gzip = GZIP $@
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cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
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(rm -f $@ ; false)
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# DTC
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# ---------------------------------------------------------------------------
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# Disable noisy checks by default
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ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
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DTC_FLAGS += -Wno-unit_address_vs_reg \
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-Wno-unit_address_format \
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-Wno-avoid_unnecessary_addr_size \
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-Wno-alias_paths \
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-Wno-graph_child_address \
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-Wno-graph_port \
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-Wno-unique_unit_address \
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-Wno-simple_bus_reg \
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-Wno-pci_device_reg
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# U-Boot specific disables
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DTC_FLAGS += -Wno-pci_bridge \
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-Wno-pci_device_bus_num
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endif
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ifneq ($(findstring 2,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
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DTC_FLAGS += -Wnode_name_chars_strict \
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-Wproperty_name_chars_strict
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endif
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DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
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# Generate an assembly file to wrap the output of the device tree compiler
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quiet_cmd_dt_S_dtb= DTB $@
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# Modified for U-Boot
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cmd_dt_S_dtb= \
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( \
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echo '.section .dtb.init.rodata,"a"'; \
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echo '.balign 16'; \
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echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
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echo '__dtb_$(subst -,_,$(*F))_begin:'; \
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echo '.incbin "$<" '; \
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echo '__dtb_$(subst -,_,$(*F))_end:'; \
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echo '.global __dtb_$(subst -,_,$(*F))_end'; \
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echo '.balign 16'; \
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) > $@
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$(obj)/%.dtb.S: $(obj)/%.dtb
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$(call cmd,dt_S_dtb)
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ifeq ($(CONFIG_OF_LIBFDT_OVERLAY),y)
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DTC_FLAGS += -@
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endif
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quiet_cmd_dtc = DTC $@
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# Modified for U-Boot
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# Bring in any U-Boot-specific include at the end of the file
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# And finally any custom .dtsi fragments specified with CONFIG_DEVICE_TREE_INCLUDES
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cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
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(cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \
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$(foreach f,$(subst $(quote),,$(CONFIG_DEVICE_TREE_INCLUDES)), \
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echo '$(pound)include "$(f)"' >> $(pre-tmp);) \
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$(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
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$(DTC) -O dtb -o $@ -b 0 \
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-i $(dir $<) $(DTC_FLAGS) \
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-d $(depfile).dtc.tmp $(dtc-tmp) || \
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(echo "Check $(shell pwd)/$(pre-tmp) for errors" && false) \
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; \
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sed "s:$(pre-tmp):$(<):" $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
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$(obj)/%.dtb: $(src)/%.dts FORCE
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$(call if_changed_dep,dtc)
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pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
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dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
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# DTCO
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# ---------------------------------------------------------------------------
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quiet_cmd_dtco = DTCO $@
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# Rule for objects only; does not put specific u-boot include at the end
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# No generation of assembly file either
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# Modified for U-Boot
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cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
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$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
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$(DTC) -@ -O dtb -o $@ -b 0 \
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-i $(dir $<) $(DTC_FLAGS) \
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-d $(depfile).dtc.tmp $(dtc-tmp) ; \
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cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
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$(obj)/%.dtbo: $(src)/%.dts FORCE
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$(call if_changed_dep,dtco)
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# Fonts
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# ---------------------------------------------------------------------------
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# Generate an assembly file to wrap the font data
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quiet_cmd_S_ttf= TTF $@
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# Modified for U-Boot
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cmd_S_ttf= \
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( \
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echo '.section .rodata.ttf.init,"a"'; \
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echo '.balign 16'; \
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echo '.global __ttf_$(*F)_begin'; \
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echo '__ttf_$(*F)_begin:'; \
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echo '.incbin "$<" '; \
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echo '__ttf_$(*F)_end:'; \
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echo '.global __ttf_$(*F)_end'; \
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echo '.balign 16'; \
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) > $@
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$(obj)/%.S: $(src)/%.ttf
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$(call cmd,S_ttf)
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# Splash logos
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# ---------------------------------------------------------------------------
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# Generate an assembly file to wrap the splash data
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quiet_cmd_S_splash= TTF $@
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# Modified for U-Boot
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cmd_S_splash= \
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( \
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echo '.section .rodata.splash.init,"a"'; \
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echo '.balign 16'; \
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echo '.global __splash_$(*F)_begin'; \
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echo '__splash_$(*F)_begin:'; \
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echo '.incbin "$<" '; \
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echo '__splash_$(*F)_end:'; \
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echo '.global __splash_$(*F)_end'; \
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echo '.balign 16'; \
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) > $@
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$(obj)/%.S: $(src)/%.bmp
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$(call cmd,S_splash)
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# EFI applications
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# A Makefile target *.efi is built as EFI application.
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# A Makefile target *_efi.S wraps *.efi as built-in EFI application.
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# ---------------------------------------------------------------------------
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# Generate an assembly file to wrap the EFI app
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cmd_S_efi= \
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( \
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echo '.section .rodata.$*.init,"a"'; \
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echo '.balign 16'; \
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echo '.global __efi_$*_begin'; \
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echo '__efi_$*_begin:'; \
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echo '.incbin "$<" '; \
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echo '__efi_$*_end:'; \
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echo '.global __efi_$*_end'; \
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echo '.balign 16'; \
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) > $@
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$(obj)/%_efi.S: $(obj)/%.efi
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$(call cmd,S_efi)
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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 -zexecstack -znocombreloc -T $(EFI_LDS_PATH) \
|
|
-shared -Bsymbolic -znorelro -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_generated.hex (despite us setting the prefix to .../dsdt_generated.asl.tmp)
|
|
# so must be renamed to dsdt_generated.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 $@ -I $(srctree)/board/$(BOARDDIR) -tc $(ASL_TMP) \
|
|
$(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
|
|
mv $(patsubst %.c,%.hex,$@) $@
|
|
|
|
$(obj)/dsdt_generated.c: $(src)/dsdt.asl
|
|
$(call cmd,acpi_c_asl)
|
|
$(Q)sed -i -e "s,dsdt_generated_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
|
|
#
|
|
# bin2c
|
|
# ---------------------------------------------------------------------------
|
|
quiet_cmd_bin2c = BIN2C $@
|
|
cmd_bin2c = $(objtree)/scripts/bin2c $2 < $< > $@
|
|
|
|
# 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_VPL_BUILD),y)
|
|
fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-vpl
|
|
else
|
|
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
|
|
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 \
|
|
-P u-boot,dm-vpl \
|
|
$(addprefix -P ,$(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
|