From: Masahiro Yamada <masahiroy@kernel.org>
Date: Mon, 10 Feb 2020 20:06:34 +0000 (+0900)
Subject: kbuild: fix mismatch between .version and include/generated/compile.h
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=083bc0e1ce91e2a65a1aecdf8d2c5045e5d46c55;p=linux.git

kbuild: fix mismatch between .version and include/generated/compile.h

Since commit 56d589361572 ("kbuild: do not create orphan built-in.a or
obj-y objects"), scripts/link-vmlinux.sh does nothing when descending
into init/.

Once the version number becomes out of sync between .version and
include/generated/compile.h, it is not self-healing.

[How to reproduce]

 $ echo 100 > .version
 $ make

You will see the number in the .version is always bigger than that in
compile.h by one. After this, every time you run 'make', the vmlinux is
re-linked even when none of source files is updated.

Fixes: 56d589361572 ("kbuild: do not create orphan built-in.a or obj-y objects")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 1919c311c1491..dd484e92752ed 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -239,7 +239,7 @@ else
 fi;
 
 # final build of init/
-${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init
+${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init need-builtin=1
 
 #link vmlinux.o
 info LD vmlinux.o