7452946e7f
The intention of having a -u-boot.dtsi file is to be able to make changes to the provided upstream dts files as well as to be able to add nodes. Change the logic for adding the file from making it the last included file at the top of the dts to being included at the end of the file. Cc: Jean-Jacques Hiblot <jjhiblot@ti.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Tested-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
500 lines
17 KiB
Makefile
500 lines
17 KiB
Makefile
#
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# SPDX-License-Identifier: GPL-2.0
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#
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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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multi-objs := $(multi-objs-y) $(multi-objs-m)
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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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# $(obj-dirs) is a list of directories that contain object files
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obj-dirs := $(dir $(multi-objs) $(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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obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
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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 = $(subst $(comma),_,$(subst -,_,$1))
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basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
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modname_flags = $(if $(filter 1,$(words $(modname))),\
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-D"KBUILD_MODNAME=KBUILD_STR($(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 = $(call addtree,-I$(obj)) $(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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-D"KBUILD_STR(s)=\#s" $(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 = $(LDFLAGS) $(ldflags-y)
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dts_dir = $(srctree)/arch/$(ARCH)/dts
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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 = $(wildcard $(dts_dir)/$(basename $(notdir $<))-u-boot.dtsi) \
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$(wildcard $(dts_dir)/$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
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$(wildcard $(dts_dir)/$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
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$(wildcard $(dts_dir)/$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
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$(wildcard $(dts_dir)/u-boot.dtsi)
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# Uncomment for debugging
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# $(warning u_boot_dtsi_options: $(u_boot_dtsi_options))
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# We use the first match
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u_boot_dtsi = $(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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-I$(srctree)/arch/$(ARCH)/dts \
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-I$(srctree)/arch/$(ARCH)/dts/include \
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-Iinclude \
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-I$(srctree)/include \
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-I$(srctree)/arch/$(ARCH)/include \
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-include $(srctree)/include/linux/kconfig.h \
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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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ifdef REGENERATE_PARSERS
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# GPERF
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# ---------------------------------------------------------------------------
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quiet_cmd_gperf = GPERF $@
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cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $<
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.PRECIOUS: $(src)/%.hash.c_shipped
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$(src)/%.hash.c_shipped: $(src)/%.gperf
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$(call cmd,gperf)
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# LEX
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# ---------------------------------------------------------------------------
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LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
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quiet_cmd_flex = LEX $@
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cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
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.PRECIOUS: $(src)/%.lex.c_shipped
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$(src)/%.lex.c_shipped: $(src)/%.l
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$(call cmd,flex)
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# YACC
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# ---------------------------------------------------------------------------
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YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
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quiet_cmd_bison = YACC $@
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cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
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.PRECIOUS: $(src)/%.tab.c_shipped
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$(src)/%.tab.c_shipped: $(src)/%.y
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$(call cmd,bison)
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quiet_cmd_bison_h = YACC $@
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cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
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.PRECIOUS: $(src)/%.tab.h_shipped
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$(src)/%.tab.h_shipped: $(src)/%.y
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$(call cmd,bison_h)
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endif
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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) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
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$(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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# 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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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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cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
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cat $< $(if $(u_boot_dtsi),\
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| sed "$$ a\#include \"$(u_boot_dtsi)\"") | \
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$(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)/%.dtb: $(src)/%.dts FORCE
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$(call if_changed_dep,dtc)
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dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
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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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# EFI Hello World 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.efi.init,"a"'; \
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echo '.balign 16'; \
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echo '.global __efi_hello_world_begin'; \
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echo '__efi_hello_world_begin:'; \
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echo '.incbin "$<" '; \
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echo '__efi_hello_world_end:'; \
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echo '.global __efi_hello_world_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 $@
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cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
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.dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
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$(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
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$(obj)/%.efi: $(obj)/%.so
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$(call cmd,efi_objcopy)
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quiet_cmd_efi_ld = LD $@
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cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
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-Bsymbolic $^ -o $@
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EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
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$(obj)/helloworld.so: $(EFI_LDS_PATH)
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$(obj)/helloworld.so: $(obj)/helloworld.o arch/$(ARCH)/lib/$(EFI_CRT0) \
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arch/$(ARCH)/lib/$(EFI_RELOC)
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$(call cmd,efi_ld)
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# ACPI
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# ---------------------------------------------------------------------------
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quiet_cmd_acpi_c_asl= ASL $<
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cmd_acpi_c_asl= \
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$(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
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iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null); \
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mv $(patsubst %.asl,%.hex,$<) $@
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$(obj)/dsdt.c: $(src)/dsdt.asl
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$(call cmd,acpi_c_asl)
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# Bzip2
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# ---------------------------------------------------------------------------
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# Bzip2 and LZMA do not include size in file... so we have to fake that;
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# append the size as a 32-bit littleendian number as gzip does.
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size_append = printf $(shell \
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dec_size=0; \
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for F in $1; do \
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fsize=$$(stat -c "%s" $$F); \
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dec_size=$$(expr $$dec_size + $$fsize); \
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done; \
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printf "%08x\n" $$dec_size | \
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sed 's/\(..\)/\1 /g' | { \
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read ch0 ch1 ch2 ch3; \
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for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
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printf '%s%03o' '\\' $$((0x$$ch)); \
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done; \
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} \
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)
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|
|
|
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 $< $@ \
|
|
$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
|