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343d3e6cc8
This line produces an extra comment line for bounds.h and asm-offsets.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
83 lines
2.1 KiB
Makefile
83 lines
2.1 KiB
Makefile
#
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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 bounds.h
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# 2) Generate asm-offsets.h (may need bounds.h)
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# 3) Check for missing system calls
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# Default sed regexp - multiline due to syntax constraints
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define sed-y
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"/^->/{s:->#\(.*\):/* \1 */:; \
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s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
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s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
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s:->::; p;}"
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endef
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quiet_cmd_offsets = GEN $@
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define cmd_offsets
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(set -e; \
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echo "#ifndef $2"; \
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echo "#define $2"; \
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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 Kbuild"; \
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echo " */"; \
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echo ""; \
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sed -ne $(sed-y) $<; \
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echo ""; \
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echo "#endif" ) > $@
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endef
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#####
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# 1) Generate bounds.h
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bounds-file := include/generated/bounds.h
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always := $(bounds-file)
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targets := $(bounds-file) kernel/bounds.s
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# We use internal kbuild rules to avoid the "is up to date" message from make
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kernel/bounds.s: kernel/bounds.c FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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$(obj)/$(bounds-file): kernel/bounds.s Kbuild
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$(Q)mkdir -p $(dir $@)
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$(call cmd,offsets,__LINUX_BOUNDS_H__)
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#####
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# 2) Generate asm-offsets.h
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#
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offsets-file := include/generated/asm-offsets.h
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always += $(offsets-file)
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targets += $(offsets-file)
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targets += arch/$(SRCARCH)/kernel/asm-offsets.s
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# We use internal kbuild rules to avoid the "is up to date" message from make
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arch/$(SRCARCH)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c \
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$(obj)/$(bounds-file) FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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$(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s Kbuild
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$(call cmd,offsets,__ASM_OFFSETS_H__)
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#####
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# 3) Check for missing system calls
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#
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always += missing-syscalls
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targets += missing-syscalls
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quiet_cmd_syscalls = CALL $<
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cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags)
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missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE
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$(call cmd,syscalls)
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# Keep these two files during make clean
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no-clean-files := $(bounds-file) $(offsets-file)
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