mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 21:24:08 +08:00
bd70134396
For one, there's no point in the respective pieces to be rebuilt unconditionally on each and every rebuild. Second there's no need to invent a custom rule for generating the .s file from the .c source - we can simply use the generic rule here. And finally, $(obj) should be used to refer to files in the build tree (rather than spelling out the subdirectory). Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
49 lines
1.3 KiB
Makefile
49 lines
1.3 KiB
Makefile
hostprogs-y := modpost mk_elfconfig
|
|
always := $(hostprogs-y) empty.o
|
|
|
|
modpost-objs := modpost.o file2alias.o sumversion.o
|
|
|
|
devicetable-offsets-file := devicetable-offsets.h
|
|
|
|
define sed-y
|
|
"/^->/{s:->#\(.*\):/* \1 */:; \
|
|
s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
|
|
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
|
|
s:->::; p;}"
|
|
endef
|
|
|
|
quiet_cmd_offsets = GEN $@
|
|
define cmd_offsets
|
|
(set -e; \
|
|
echo "#ifndef __DEVICETABLE_OFFSETS_H__"; \
|
|
echo "#define __DEVICETABLE_OFFSETS_H__"; \
|
|
echo "/*"; \
|
|
echo " * DO NOT MODIFY."; \
|
|
echo " *"; \
|
|
echo " * This file was generated by Kbuild"; \
|
|
echo " *"; \
|
|
echo " */"; \
|
|
echo ""; \
|
|
sed -ne $(sed-y) $<; \
|
|
echo ""; \
|
|
echo "#endif" ) > $@
|
|
endef
|
|
|
|
$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s
|
|
$(call if_changed,offsets)
|
|
|
|
targets += $(devicetable-offsets-file) devicetable-offsets.s
|
|
|
|
# dependencies on generated files need to be listed explicitly
|
|
|
|
$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
|
|
$(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file)
|
|
|
|
quiet_cmd_elfconfig = MKELF $@
|
|
cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@
|
|
|
|
$(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
|
|
$(call if_changed,elfconfig)
|
|
|
|
targets += elfconfig.h
|