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authorMasahiro Yamada <masahiroy@kernel.org>2022-09-28 09:39:41 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2022-10-02 21:52:58 +0300
commit5d4aeffbf7092b6bd7b2de71c2cd6fa14dffbad5 (patch)
tree2a68dd9ebc4b7594fc19057d35fdc7a20d333105 /scripts/Makefile.vmlinux
parent7a342e6c7735e13b294374cb0a0f6283d8667496 (diff)
downloadlinux-5d4aeffbf7092b6bd7b2de71c2cd6fa14dffbad5.tar.xz
kbuild: rebuild .vmlinux.export.o when its prerequisite is updated
When include/linux/export-internal.h is updated, .vmlinux.export.o must be rebuilt, but it does not happen because its rule is hidden behind scripts/link-vmlinux.sh. Move it out of the shell script, so that Make can see the dependency between vmlinux and .vmlinux.export.o. Move the vmlinux rule to scripts/Makefile.vmlinux. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts/Makefile.vmlinux')
-rw-r--r--scripts/Makefile.vmlinux21
1 files changed, 20 insertions, 1 deletions
diff --git a/scripts/Makefile.vmlinux b/scripts/Makefile.vmlinux
index 7a63abf22399..49946cb96844 100644
--- a/scripts/Makefile.vmlinux
+++ b/scripts/Makefile.vmlinux
@@ -1,18 +1,37 @@
# SPDX-License-Identifier: GPL-2.0-only
+PHONY := __default
+__default: vmlinux
+
include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
# for c_flags
include $(srctree)/scripts/Makefile.lib
+targets :=
+
quiet_cmd_cc_o_c = CC $@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
%.o: %.c FORCE
$(call if_changed_dep,cc_o_c)
-targets := $(MAKECMDGOALS)
+ifdef CONFIG_MODULES
+targets += .vmlinux.export.o
+vmlinux: .vmlinux.export.o
+endif
+
+ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
+
+# Final link of vmlinux with optional arch pass after final link
+cmd_link_vmlinux = \
+ $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
+ $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
+
+targets += vmlinux
+vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
+ +$(call if_changed_dep,link_vmlinux)
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------