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https://github.com/torvalds/linux
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42 lines
1 KiB
Text
42 lines
1 KiB
Text
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#
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# Kbuild for top-level directory of the kernel
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# This file takes care of the following:
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# 1) Generate asm-offsets.h
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#####
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# 1) Generate asm-offsets.h
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#
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offsets-file := include/asm-$(ARCH)/asm-offsets.h
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always := $(offsets-file)
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targets := $(offsets-file)
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targets += arch/$(ARCH)/kernel/asm-offsets.s
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quiet_cmd_offsets = GEN $@
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define cmd_offsets
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cat $< | \
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(set -e; \
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echo "#ifndef __ASM_OFFSETS_H__"; \
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echo "#define __ASM_OFFSETS_H__"; \
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echo "/*"; \
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echo " * DO NOT MODIFY."; \
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echo " *"; \
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echo " * This file was generated by $(srctree)/Kbuild"; \
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echo " *"; \
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echo " */"; \
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echo ""; \
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sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
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echo ""; \
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echo "#endif" ) > $@
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endef
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# We use internal kbuild rules to avoid the "is up to date" message from make
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arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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$(srctree)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
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$(call cmd,offsets)
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