Idea is from YaroST12 @ GitHub Signed-off-by: Julian Liu <wlootlxt123@gmail.com> Change-Id: Ia85ed9ebdc2fcbeecef8126aac523d6d8cffdaa3fourteen
Julian Liu
5 years ago
committed by
Simon1511
parent
ef682af05f
commit
d80becc6a7
@ -1,452 +1,447 @@ |
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# SPDX-License-Identifier: GPL-2.0
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# SPDX-License-Identifier: GPL-2.0
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# Backward compatibility
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# Backward compatibility
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asflags-y += $(EXTRA_AFLAGS)
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asflags-y += $(EXTRA_AFLAGS)
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ccflags-y += $(EXTRA_CFLAGS)
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ccflags-y += $(EXTRA_CFLAGS)
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cppflags-y += $(EXTRA_CPPFLAGS)
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cppflags-y += $(EXTRA_CPPFLAGS)
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ldflags-y += $(EXTRA_LDFLAGS)
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ldflags-y += $(EXTRA_LDFLAGS)
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#
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#
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# flags that take effect in sub directories
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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_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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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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# Figure out what we need to build from the various variables
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# ===========================================================================
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# ===========================================================================
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# When an object is listed to be built compiled-in and modular,
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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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# only build the compiled-in version
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obj-m := $(filter-out $(obj-y),$(obj-m))
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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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# Libraries are always collected in one lib file.
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# Filter out objects already built-in
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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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lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
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# Handle objects in subdirs
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# Handle objects in subdirs
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# ---------------------------------------------------------------------------
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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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# 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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# 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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# 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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# and add the directory to the list of dirs to descend into: $(subdir-m)
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# Determine modorder.
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# Determine modorder.
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# Unfortunately, we don't have information about ordering between -y
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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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# 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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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 := $(patsubst %/,%,$(filter %/, $(obj-y)))
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subdir-y += $(__subdir-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 := $(patsubst %/,%,$(filter %/, $(obj-m)))
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subdir-m += $(__subdir-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-y := $(patsubst %/, %/built-in.o, $(obj-y))
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obj-m := $(filter-out %/, $(obj-m))
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obj-m := $(filter-out %/, $(obj-m))
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# Subdirectories we need to descend into
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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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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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# 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-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:.o=-m))), $(m))))
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multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))), $(m))))
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multi-used := $(multi-used-y) $(multi-used-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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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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# Build list of the parts of our composite objects, our composite
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# objects depend on those (obviously)
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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-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-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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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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# $(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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# tell kbuild to descend
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subdir-obj-y := $(filter %/built-in.o, $(obj-y))
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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) is a list of directories that contain object files
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obj-dirs := $(dir $(multi-objs) $(obj-y))
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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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# 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-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=-m))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m)))
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real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m)))
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# Add subdir path
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# Add subdir path
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extra-y := $(addprefix $(obj)/,$(extra-y))
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extra-y := $(addprefix $(obj)/,$(extra-y))
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always := $(addprefix $(obj)/,$(always))
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always := $(addprefix $(obj)/,$(always))
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targets := $(addprefix $(obj)/,$(targets))
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targets := $(addprefix $(obj)/,$(targets))
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modorder := $(addprefix $(obj)/,$(modorder))
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modorder := $(addprefix $(obj)/,$(modorder))
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obj-y := $(addprefix $(obj)/,$(obj-y))
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obj-y := $(addprefix $(obj)/,$(obj-y))
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obj-m := $(addprefix $(obj)/,$(obj-m))
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obj-m := $(addprefix $(obj)/,$(obj-m))
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lib-y := $(addprefix $(obj)/,$(lib-y))
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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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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-y := $(addprefix $(obj)/,$(real-objs-y))
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real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
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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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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-y := $(addprefix $(obj)/,$(multi-used-y))
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multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
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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-y := $(addprefix $(obj)/,$(multi-objs-y))
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multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
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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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subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
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obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
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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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# These flags are needed for modversions and compiling, so we define them here
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# already
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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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# $(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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# 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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# 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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# KBUILD_MODNAME definition. The reason is that any made-up name would
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# differ in different configs.
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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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name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote)
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basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
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basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
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modname_flags = $(if $(filter 1,$(words $(modname))),\
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modname_flags = $(if $(filter 1,$(words $(modname))),\
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-DKBUILD_MODNAME=$(call name-fix,$(modname)))
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-DKBUILD_MODNAME=$(call name-fix,$(modname)))
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orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
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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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$(ccflags-y) $(CFLAGS_$(basetarget).o)
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_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
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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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orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
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$(asflags-y) $(AFLAGS_$(basetarget).o)
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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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_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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_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
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#
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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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# 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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# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
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# (in this order)
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# (in this order)
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#
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#
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ifeq ($(CONFIG_GCOV_KERNEL),y) |
ifeq ($(CONFIG_GCOV_KERNEL),y) |
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_c_flags += $(if $(patsubst n%,, \
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_c_flags += $(if $(patsubst n%,, \
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$(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
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$(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
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$(CFLAGS_GCOV))
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$(CFLAGS_GCOV))
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endif |
endif |
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#
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#
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# Enable address sanitizer flags for kernel except some files or directories
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# Enable address sanitizer flags for kernel except some files or directories
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# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
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# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
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#
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#
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ifeq ($(CONFIG_KASAN),y) |
ifeq ($(CONFIG_KASAN),y) |
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_c_flags += $(if $(patsubst n%,, \
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_c_flags += $(if $(patsubst n%,, \
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$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
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$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
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$(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE))
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$(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE))
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endif |
endif |
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ifeq ($(CONFIG_UBSAN),y) |
ifeq ($(CONFIG_UBSAN),y) |
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_c_flags += $(if $(patsubst n%,, \
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_c_flags += $(if $(patsubst n%,, \
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$(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \
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$(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \
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$(CFLAGS_UBSAN))
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$(CFLAGS_UBSAN))
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endif |
endif |
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ifeq ($(CONFIG_KCOV),y) |
ifeq ($(CONFIG_KCOV),y) |
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_c_flags += $(if $(patsubst n%,, \
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_c_flags += $(if $(patsubst n%,, \
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$(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \
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$(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \
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$(CFLAGS_KCOV))
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$(CFLAGS_KCOV))
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endif |
endif |
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# If building the kernel in a separate objtree expand all occurrences
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# If building the kernel in a separate objtree expand all occurrences
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# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
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# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
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ifeq ($(KBUILD_SRC),) |
ifeq ($(KBUILD_SRC),) |
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__c_flags = $(_c_flags)
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__c_flags = $(_c_flags)
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__a_flags = $(_a_flags)
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__a_flags = $(_a_flags)
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__cpp_flags = $(_cpp_flags)
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__cpp_flags = $(_cpp_flags)
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else |
else |
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# -I$(obj) locates generated .h files
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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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# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
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# and locates generated .h files
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# and locates generated .h files
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# FIXME: Replace both with specific CFLAGS* statements in the makefiles
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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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__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \
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$(call flags,_c_flags)
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$(call flags,_c_flags)
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__a_flags = $(call flags,_a_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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__cpp_flags = $(call flags,_cpp_flags)
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endif |
endif |
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c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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$(__c_flags) $(modkern_cflags) \
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$(__c_flags) $(modkern_cflags) \
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$(basename_flags) $(modname_flags)
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$(basename_flags) $(modname_flags)
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|
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a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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$(__a_flags) $(modkern_aflags)
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$(__a_flags) $(modkern_aflags)
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cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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$(__cpp_flags)
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$(__cpp_flags)
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ld_flags = $(LDFLAGS) $(ldflags-y)
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ld_flags = $(LDFLAGS) $(ldflags-y)
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DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes
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DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes
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dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
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dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
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$(addprefix -I,$(DTC_INCLUDE)) \
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$(addprefix -I,$(DTC_INCLUDE)) \
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-undef -D__DTS__
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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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# 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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modname-multi = $(sort $(foreach m,$(multi-used),\
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$(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
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$(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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# Useful for describing the dependency of composite objects
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# Usage:
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# Usage:
|
||||||
# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
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# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
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define multi_depend |
define multi_depend |
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$(foreach m, $(notdir $1), \
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$(foreach m, $(notdir $1), \
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||||||
$(eval $(obj)/$m: \
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$(eval $(obj)/$m: \
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||||||
$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
|
$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
|
||||||
endef |
endef |
||||||
|
|
||||||
ifdef REGENERATE_PARSERS |
ifdef REGENERATE_PARSERS |
||||||
|
|
||||||
# LEX
|
# LEX
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
|
LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
|
||||||
|
|
||||||
quiet_cmd_flex = LEX $@
|
quiet_cmd_flex = LEX $@
|
||||||
cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
|
cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
|
||||||
|
|
||||||
.PRECIOUS: $(src)/%.lex.c_shipped |
.PRECIOUS: $(src)/%.lex.c_shipped |
||||||
$(src)/%.lex.c_shipped: $(src)/%.l |
$(src)/%.lex.c_shipped: $(src)/%.l |
||||||
$(call cmd,flex)
|
$(call cmd,flex)
|
||||||
|
|
||||||
# YACC
|
# YACC
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
|
YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
|
||||||
|
|
||||||
quiet_cmd_bison = YACC $@
|
quiet_cmd_bison = YACC $@
|
||||||
cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
|
cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
|
||||||
|
|
||||||
.PRECIOUS: $(src)/%.tab.c_shipped |
.PRECIOUS: $(src)/%.tab.c_shipped |
||||||
$(src)/%.tab.c_shipped: $(src)/%.y |
$(src)/%.tab.c_shipped: $(src)/%.y |
||||||
$(call cmd,bison)
|
$(call cmd,bison)
|
||||||
|
|
||||||
quiet_cmd_bison_h = YACC $@
|
quiet_cmd_bison_h = YACC $@
|
||||||
cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
|
cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
|
||||||
|
|
||||||
.PRECIOUS: $(src)/%.tab.h_shipped |
.PRECIOUS: $(src)/%.tab.h_shipped |
||||||
$(src)/%.tab.h_shipped: $(src)/%.y |
$(src)/%.tab.h_shipped: $(src)/%.y |
||||||
$(call cmd,bison_h)
|
$(call cmd,bison_h)
|
||||||
|
|
||||||
endif |
endif |
||||||
|
|
||||||
# Shipped files
|
# Shipped files
|
||||||
# ===========================================================================
|
# ===========================================================================
|
||||||
|
|
||||||
quiet_cmd_shipped = SHIPPED $@
|
quiet_cmd_shipped = SHIPPED $@
|
||||||
cmd_shipped = cat $< > $@
|
cmd_shipped = cat $< > $@
|
||||||
|
|
||||||
$(obj)/%: $(src)/%_shipped |
$(obj)/%: $(src)/%_shipped |
||||||
$(call cmd,shipped)
|
$(call cmd,shipped)
|
||||||
|
|
||||||
# Commands useful for building a boot image
|
# Commands useful for building a boot image
|
||||||
# ===========================================================================
|
# ===========================================================================
|
||||||
#
|
#
|
||||||
# Use as following:
|
# Use as following:
|
||||||
#
|
#
|
||||||
# target: source(s) FORCE
|
# target: source(s) FORCE
|
||||||
# $(if_changed,ld/objcopy/gzip)
|
# $(if_changed,ld/objcopy/gzip)
|
||||||
#
|
#
|
||||||
# and add target to extra-y so that we know we have to
|
# and add target to extra-y so that we know we have to
|
||||||
# read in the saved command line
|
# read in the saved command line
|
||||||
|
|
||||||
# Linking
|
# Linking
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
quiet_cmd_ld = LD $@
|
quiet_cmd_ld = LD $@
|
||||||
cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
|
cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
|
||||||
$(filter-out FORCE,$^) -o $@
|
$(filter-out FORCE,$^) -o $@
|
||||||
|
|
||||||
# Objcopy
|
# Objcopy
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
quiet_cmd_objcopy = OBJCOPY $@
|
quiet_cmd_objcopy = OBJCOPY $@
|
||||||
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
|
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
|
||||||
|
|
||||||
# Gzip
|
# Gzip
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
quiet_cmd_gzip = GZIP $@
|
quiet_cmd_gzip = GZIP $@
|
||||||
cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
|
cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
|
||||||
(rm -f $@ ; false)
|
(rm -f $@ ; false)
|
||||||
|
|
||||||
# DTC
|
# DTC
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
DTC ?= $(objtree)/scripts/dtc/dtc
|
DTC ?= $(objtree)/scripts/dtc/dtc
|
||||||
|
|
||||||
# Silence all DTC warnings by default.
|
# Silence all DTC warnings by default.
|
||||||
DTC_FLAGS += -q
|
DTC_FLAGS += -q
|
||||||
|
|
||||||
# Disable noisy checks by default
|
# Disable noisy checks by default
|
||||||
ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) |
ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) |
||||||
DTC_FLAGS += -Wno-unit_address_vs_reg
|
DTC_FLAGS += -Wno-unit_address_vs_reg
|
||||||
endif |
endif |
||||||
|
|
||||||
ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),2) |
ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),2) |
||||||
DTC_FLAGS += -Wnode_name_chars_strict \
|
DTC_FLAGS += -Wnode_name_chars_strict \
|
||||||
-Wproperty_name_chars_strict
|
-Wproperty_name_chars_strict
|
||||||
endif |
endif |
||||||
|
|
||||||
DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
|
DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
|
||||||
|
|
||||||
# Generate an assembly file to wrap the output of the device tree compiler
|
# Generate an assembly file to wrap the output of the device tree compiler
|
||||||
quiet_cmd_dt_S_dtb= DTB $@
|
quiet_cmd_dt_S_dtb= DTB $@
|
||||||
cmd_dt_S_dtb= \
|
cmd_dt_S_dtb= \
|
||||||
( \ |
( \ |
||||||
echo '\#include <asm-generic/vmlinux.lds.h>'; \
|
echo '\#include <asm-generic/vmlinux.lds.h>'; \
|
||||||
echo '.section .dtb.init.rodata,"a"'; \
|
echo '.section .dtb.init.rodata,"a"'; \
|
||||||
echo '.balign STRUCT_ALIGNMENT'; \
|
echo '.balign STRUCT_ALIGNMENT'; \
|
||||||
echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
|
echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
|
||||||
echo '__dtb_$(subst -,_,$(*F))_begin:'; \
|
echo '__dtb_$(subst -,_,$(*F))_begin:'; \
|
||||||
echo '.incbin "$<" '; \
|
echo '.incbin "$<" '; \
|
||||||
echo '__dtb_$(subst -,_,$(*F))_end:'; \
|
echo '__dtb_$(subst -,_,$(*F))_end:'; \
|
||||||
echo '.global __dtb_$(subst -,_,$(*F))_end'; \
|
echo '.global __dtb_$(subst -,_,$(*F))_end'; \
|
||||||
echo '.balign STRUCT_ALIGNMENT'; \
|
echo '.balign STRUCT_ALIGNMENT'; \
|
||||||
) > $@ |
) > $@ |
||||||
|
|
||||||
$(obj)/%.dtb.S: $(obj)/%.dtb |
$(obj)/%.dtb.S: $(obj)/%.dtb |
||||||
$(call cmd,dt_S_dtb)
|
$(call cmd,dt_S_dtb)
|
||||||
|
|
||||||
DTC = $(srctree)/tools/dtc
|
DTC = $(srctree)/tools/dtc
|
||||||
|
|
||||||
quiet_cmd_dtc = DTC $@
|
quiet_cmd_dtc = DTC $@
|
||||||
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
|
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
|
||||||
$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
|
$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
|
||||||
$(DTC) -O dtb -o $@ -b 0 \
|
$(DTC) -O dtb -o $@ -b 0 \
|
||||||
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
|
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
|
||||||
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
|
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
|
||||||
cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
|
cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
|
||||||
|
|
||||||
$(obj)/%.dtb: $(src)/%.dts FORCE |
$(obj)/%.dtb: $(src)/%.dts FORCE |
||||||
$(call if_changed_dep,dtc)
|
$(call if_changed_dep,dtc)
|
||||||
|
|
||||||
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
|
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
|
||||||
|
|
||||||
# cat
|
# cat
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
# Concatentate multiple files together
|
# Concatentate multiple files together
|
||||||
quiet_cmd_cat = CAT $@
|
quiet_cmd_cat = CAT $@
|
||||||
cmd_cat = (cat $(filter-out FORCE,$^) > $@) || (rm -f $@; false)
|
cmd_cat = (cat $(filter-out FORCE,$^) > $@) || (rm -f $@; false)
|
||||||
|
|
||||||
# Bzip2
|
# Bzip2
|
||||||
# ---------------------------------------------------------------------------
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
# Bzip2 and LZMA do not include size in file... so we have to fake that;
|
# 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.
|
# append the size as a 32-bit littleendian number as gzip does.
|
||||||
size_append = printf $(shell \
|
size_append = printf $(shell \
|
||||||
dec_size=0; \
|
dec_size=0; \
|
||||||
for F in $1; do \ |
for F in $1; do \ |
||||||
fsize=$$(stat -c "%s" $$F); \
|
fsize=$$(stat -c "%s" $$F); \
|
||||||
dec_size=$$(expr $$dec_size + $$fsize); \
|
dec_size=$$(expr $$dec_size + $$fsize); \
|
||||||
done; \ |
done; \ |
||||||
printf "%08x\n" $$dec_size | \ |
printf "%08x\n" $$dec_size | \ |
||||||
sed 's/\(..\)/\1 /g' | { \
|
sed 's/\(..\)/\1 /g' | { \
|
||||||
read ch0 ch1 ch2 ch3; \
|
read ch0 ch1 ch2 ch3; \
|
||||||
for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
|
for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
|
||||||
printf '%s%03o' '\\' $$((0x$$ch)); \
|
printf '%s%03o' '\\' $$((0x$$ch)); \
|
||||||
done; \
|
done; \
|
||||||
} \
|
} \
|
||||||
) |
) |
||||||
|
|
||||||
quiet_cmd_bzip2 = BZIP2 $@
|
quiet_cmd_bzip2 = BZIP2 $@
|
||||||
cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
|
cmd_bzip2 = (cat $(filter-out FORCE,$^) | bzip2 -9) > $@ || \
|
||||||
bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
|
(rm -f $@ ; false)
|
||||||
(rm -f $@ ; false)
|
|
||||||
|
# Lzma
|
||||||
# Lzma
|
# ---------------------------------------------------------------------------
|
||||||
# ---------------------------------------------------------------------------
|
|
||||||
|
quiet_cmd_lzma = LZMA $@
|
||||||
quiet_cmd_lzma = LZMA $@
|
cmd_lzma = (cat $(filter-out FORCE,$^) | lzma -9) > $@ || \
|
||||||
cmd_lzma = (cat $(filter-out FORCE,$^) | \
|
(rm -f $@ ; false)
|
||||||
lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
|
|
||||||
(rm -f $@ ; false)
|
quiet_cmd_lzo = LZO $@
|
||||||
|
cmd_lzo = (cat $(filter-out FORCE,$^) | lzop -9) > $@ || \
|
||||||
quiet_cmd_lzo = LZO $@
|
(rm -f $@ ; false)
|
||||||
cmd_lzo = (cat $(filter-out FORCE,$^) | \
|
|
||||||
lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
|
quiet_cmd_lz4 = LZ4 $@
|
||||||
(rm -f $@ ; false)
|
cmd_lz4 = (cat $(filter-out FORCE,$^) | \
|
||||||
|
lz4 -l -12 --favor-decSpeed stdin stdout) > $@ || \
|
||||||
quiet_cmd_lz4 = LZ4 $@
|
(rm -f $@ ; false)
|
||||||
cmd_lz4 = (cat $(filter-out FORCE,$^) | \
|
|
||||||
lz4 -l -12 --favor-decSpeed stdin stdout && \
|
# U-Boot mkimage
|
||||||
$(call size_append, $(filter-out FORCE,$^))) > $@ || \
|
# ---------------------------------------------------------------------------
|
||||||
(rm -f $@ ; false)
|
|
||||||
|
MKIMAGE := $(srctree)/scripts/mkuboot.sh
|
||||||
# U-Boot mkimage
|
|
||||||
# ---------------------------------------------------------------------------
|
# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
|
||||||
|
# the number of overrides in arch makefiles
|
||||||
MKIMAGE := $(srctree)/scripts/mkuboot.sh
|
UIMAGE_ARCH ?= $(SRCARCH)
|
||||||
|
UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
|
||||||
# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
|
UIMAGE_OPTS-y ?=
|
||||||
# the number of overrides in arch makefiles
|
UIMAGE_TYPE ?= kernel
|
||||||
UIMAGE_ARCH ?= $(SRCARCH)
|
UIMAGE_LOADADDR ?= arch_must_set_this
|
||||||
UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
|
UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
|
||||||
UIMAGE_OPTS-y ?=
|
UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
|
||||||
UIMAGE_TYPE ?= kernel
|
UIMAGE_IN ?= $<
|
||||||
UIMAGE_LOADADDR ?= arch_must_set_this
|
UIMAGE_OUT ?= $@
|
||||||
UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
|
|
||||||
UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
|
quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
|
||||||
UIMAGE_IN ?= $<
|
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
|
||||||
UIMAGE_OUT ?= $@
|
-C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
|
||||||
|
-T $(UIMAGE_TYPE) \
|
||||||
quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
|
-a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
|
||||||
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
|
-n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
|
||||||
-C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
|
|
||||||
-T $(UIMAGE_TYPE) \
|
# XZ
|
||||||
-a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
|
# ---------------------------------------------------------------------------
|
||||||
-n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
|
# Use xzkern to compress the kernel image and xzmisc to compress other things.
|
||||||
|
#
|
||||||
# XZ
|
# 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
|
||||||
# Use xzkern to compress the kernel image and xzmisc to compress other things.
|
# the target architecture. xzkern also appends uncompressed size of the data
|
||||||
#
|
# using size_append. The .xz format has the size information available at
|
||||||
# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
|
# the end of the file too, but it's in more complex format and it's good to
|
||||||
# of the kernel decompressor. A BCJ filter is used if it is available for
|
# avoid changing the part of the boot code that reads the uncompressed size.
|
||||||
# the target architecture. xzkern also appends uncompressed size of the data
|
# Note that the bytes added by size_append will make the xz tool think that
|
||||||
# using size_append. The .xz format has the size information available at
|
# the file is corrupt. This is expected.
|
||||||
# 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.
|
# xzmisc doesn't use size_append, so it can be used to create normal .xz
|
||||||
# Note that the bytes added by size_append will make the xz tool think that
|
# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
|
||||||
# the file is corrupt. This is expected.
|
# big dictionary would increase the memory usage too much in the multi-call
|
||||||
#
|
# decompression mode. A BCJ filter isn't used either.
|
||||||
# xzmisc doesn't use size_append, so it can be used to create normal .xz
|
quiet_cmd_xzkern = XZKERN $@
|
||||||
# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
|
cmd_xzkern = (cat $(filter-out FORCE,$^) | \
|
||||||
# big dictionary would increase the memory usage too much in the multi-call
|
sh $(srctree)/scripts/xz_wrap.sh) > $@ || \
|
||||||
# decompression mode. A BCJ filter isn't used either.
|
(rm -f $@ ; false)
|
||||||
quiet_cmd_xzkern = XZKERN $@
|
|
||||||
cmd_xzkern = (cat $(filter-out FORCE,$^) | \
|
quiet_cmd_xzmisc = XZMISC $@
|
||||||
sh $(srctree)/scripts/xz_wrap.sh && \
|
cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
|
||||||
$(call size_append, $(filter-out FORCE,$^))) > $@ || \
|
xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
|
||||||
(rm -f $@ ; false)
|
(rm -f $@ ; false)
|
||||||
|
|
||||||
quiet_cmd_xzmisc = XZMISC $@
|
# ASM offsets
|
||||||
cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
|
# ---------------------------------------------------------------------------
|
||||||
xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
|
|
||||||
(rm -f $@ ; false)
|
# Default sed regexp - multiline due to syntax constraints
|
||||||
|
#
|
||||||
# ASM offsets
|
# Use [:space:] because LLVM's integrated assembler inserts <tab> around
|
||||||
# ---------------------------------------------------------------------------
|
# the .ascii directive whereas GCC keeps the <space> as-is.
|
||||||
|
define sed-offsets |
||||||
# Default sed regexp - multiline due to syntax constraints
|
's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \
|
||||||
#
|
/^->/{s:->#\(.*\):/* \1 */:; \
|
||||||
# Use [:space:] because LLVM's integrated assembler inserts <tab> around
|
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
|
||||||
# the .ascii directive whereas GCC keeps the <space> as-is.
|
s:->::; p;}'
|
||||||
define sed-offsets |
endef |
||||||
's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \
|
|
||||||
/^->/{s:->#\(.*\):/* \1 */:; \
|
# Use filechk to avoid rebuilds when a header changes, but the resulting file
|
||||||
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
|
# does not
|
||||||
s:->::; p;}'
|
define filechk_offsets |
||||||
endef |
(set -e; \
|
||||||
|
echo "#ifndef $2"; \
|
||||||
# Use filechk to avoid rebuilds when a header changes, but the resulting file
|
echo "#define $2"; \
|
||||||
# does not
|
echo "/*"; \
|
||||||
define filechk_offsets |
echo " * DO NOT MODIFY."; \
|
||||||
(set -e; \
|
echo " *"; \
|
||||||
echo "#ifndef $2"; \
|
echo " * This file was generated by Kbuild"; \
|
||||||
echo "#define $2"; \
|
echo " */"; \
|
||||||
echo "/*"; \
|
echo ""; \
|
||||||
echo " * DO NOT MODIFY."; \
|
sed -ne $(sed-offsets); \
|
||||||
echo " *"; \
|
echo ""; \
|
||||||
echo " * This file was generated by Kbuild"; \
|
echo "#endif" )
|
||||||
echo " */"; \
|
endef |
||||||
echo ""; \
|
|
||||||
sed -ne $(sed-offsets); \
|
|
||||||
echo ""; \
|
|
||||||
echo "#endif" )
|
|
||||||
endef |
|
||||||
|
|||||||
Loading…
Reference in new issue