f60143ce12
With CONFIG_LTO_CLANG, clang generates LLVM IR instead of ELF object files. As empty.o is used for probing target properties, disable LTO for it to produce an object file instead. Bug: 145210207 Change-Id: I618d8b86ed88ad048abdee3c541ced19d12982c0 Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
29 lines
867 B
Makefile
29 lines
867 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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OBJECT_FILES_NON_STANDARD := y
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CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO)
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hostprogs-y := modpost mk_elfconfig
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always := $(hostprogs-y) empty.o
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modpost-objs := modpost.o file2alias.o sumversion.o
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devicetable-offsets-file := devicetable-offsets.h
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$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s FORCE
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$(call filechk,offsets,__DEVICETABLE_OFFSETS_H__)
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targets += $(devicetable-offsets-file) devicetable-offsets.s
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# dependencies on generated files need to be listed explicitly
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$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
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$(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file)
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quiet_cmd_elfconfig = MKELF $@
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cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@
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$(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
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$(call if_changed,elfconfig)
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targets += elfconfig.h
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