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authorMasahiro Yamada <masahiroy@kernel.org>2022-04-07 00:30:22 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2022-05-08 03:16:59 +0900
commitfc93a4cdce1db7568fcdff608924324f5754efe5 (patch)
tree783c2523980e27d9fcbc1be79fab97ca15635101 /scripts/Makefile.build
parent22f26f21774f838e97921952d8c5c4aab3da2ea4 (diff)
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.build5
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: