Do not build modules.builtin(.modinfo) as a side-effect of vmlinux.
There are no good reason to rebuild them just because vmlinux's
prerequistes (vmlinux.lds, .vmlinux.export.c, etc.) have been updated.
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
Changes in v2:
- New patch
scripts/Makefile.vmlinux_o | 26 +++++++++++++++++++++++++-
scripts/link-vmlinux.sh | 7 -------
2 files changed, 25 insertions(+), 8 deletions(-)
diff --git a/scripts/Makefile.vmlinux_o b/scripts/Makefile.vmlinux_o
index 68c22879bade..5e8f75d336af 100644
--- a/scripts/Makefile.vmlinux_o
+++ b/scripts/Makefile.vmlinux_o
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
PHONY := __default
-__default: vmlinux.o
+__default: vmlinux.o modules.builtin
include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
@@ -62,6 +62,30 @@ vmlinux.o: $(initcalls-lds) vmlinux.a $(KBUILD_VMLINUX_LIBS) FORCE
targets += vmlinux.o
+# module.builtin.modinfo
+# ---------------------------------------------------------------------------
+
+OBJCOPYFLAGS_modules.builtin.modinfo := -j .modinfo -O binary
+
+targets += modules.builtin.modinfo
+modules.builtin.modinfo: vmlinux.o FORCE
+ $(call if_changed,objcopy)
+
+# module.builtin
+# ---------------------------------------------------------------------------
+
+# The second line aids cases where multiple modules share the same object.
+
+quiet_cmd_modules_builtin = GEN $@
+ cmd_modules_builtin = \
+ tr '\0' '\n' < $< | \
+ sed -n 's/^[[:alnum:]:_]*\.file=//p' | \
+ tr ' ' '\n' | uniq | sed -e 's:^:kernel/:' -e 's/$$/.ko/' > $@
+
+targets += modules.builtin
+modules.builtin: modules.builtin.modinfo FORCE
+ $(call if_changed,modules_builtin)
+
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 9c3140d33ccd..5e7a12284b39 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -214,13 +214,6 @@ if [ "$1" = "clean" ]; then
exit 0
fi
-info MODINFO modules.builtin.modinfo
-${OBJCOPY} -j .modinfo -O binary vmlinux.o modules.builtin.modinfo
-info GEN modules.builtin
-# The second line aids cases where multiple modules share the same object.
-tr '\0' '\n' < modules.builtin.modinfo | sed -n 's/^[[:alnum:]:_]*\.file=//p' |
- tr ' ' '\n' | uniq | sed -e 's:^:kernel/:' -e 's/$/.ko/' > modules.builtin
-
if is_enabled CONFIG_MODULES; then
${MAKE} -f "${srctree}/scripts/Makefile.vmlinux" .vmlinux.export.o
fi
--
2.34.1
