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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-04-07 00:30:22 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-05-08 03:16:59 +0900 |
| commit | fc93a4cdce1db7568fcdff608924324f5754efe5 (patch) | |
| tree | 783c2523980e27d9fcbc1be79fab97ca15635101 /scripts/Makefile.build | |
| parent | 22f26f21774f838e97921952d8c5c4aab3da2ea4 (diff) | |
| download | lwn-fc93a4cdce1db7568fcdff608924324f5754efe5.tar.gz lwn-fc93a4cdce1db7568fcdff608924324f5754efe5.zip | |
kbuild: make *.mod not depend on *.o
The dependency
$(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o
... exists because *.mod files previously contained undefined symbols,
which are computed from *.o files when CONFIG_TRIM_UNUSED_KSYMS=y.
Now that the undefined symbols are put into separate *.usyms files,
there is no reason to make *.mod depend on *.o files.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index f7a30f378e20..3da731cf6978 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -85,7 +85,7 @@ ifdef need-builtin targets-for-builtin += $(obj)/built-in.a endif -targets-for-modules := $(foreach x, mod $(if $(CONFIG_TRIM_UNUSED_KSYMS), usyms), \ +targets-for-modules := $(foreach x, o mod $(if $(CONFIG_TRIM_UNUSED_KSYMS), usyms), \ $(patsubst %.o, %.$x, $(filter %.o, $(obj-m)))) ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),) @@ -306,7 +306,7 @@ endif cmd_mod = echo $(addprefix $(obj)/, $(call real-search, $*.o, .o, -objs -y -m)) | \ $(AWK) -v RS='( |\n)' '!x[$$0]++' > $@ -$(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o FORCE +$(obj)/%.mod: FORCE $(call if_changed,mod) # List module undefined symbols @@ -469,7 +469,6 @@ $(multi-obj-m): FORCE $(call if_changed,link_multi-m) $(call multi_depend, $(multi-obj-m), .o, -objs -y -m) -targets += $(multi-obj-m) targets := $(filter-out $(PHONY), $(targets)) # Add intermediate targets: |