[tip: objtool/core] objtool: Always do header sync check

[tip-bot2 for Julien Thierry]

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     af5eb2fc0ccf62a90b3c8bac170a9ab22e5949b3
Gitweb:        https://git.kernel.org/tip/af5eb2fc0ccf62a90b3c8bac170a9ab22e5949b3
Author:        Julien Thierry <jthierry@xxxxxxxxxx>
AuthorDate:    Fri, 27 Mar 2020 15:28:38 
Committer:     Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
CommitterDate: Tue, 14 Apr 2020 10:39:24 -05:00

objtool: Always do header sync check

Currently, the check of tools files against kernel equivalent is only
done after every object file has been built. This means one might fix
build issues against outdated headers without seeing a warning about
this.

Check headers before any object is built. Also, make it part of a
FORCE'd recipe so every attempt to build objtool will report the
outdated headers (if any).

Signed-off-by: Julien Thierry <jthierry@xxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Miroslav Benes <mbenes@xxxxxxx>
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
 tools/objtool/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index f591c4d..d1ab0cc 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -49,10 +49,10 @@ export srctree OUTPUT CFLAGS SRCARCH AWK
 include $(srctree)/tools/build/Makefile.include
 
 $(OBJTOOL_IN): fixdep FORCE
+	@$(CONFIG_SHELL) ./sync-check.sh
 	@$(MAKE) $(build)=objtool
 
 $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
-	@$(CONFIG_SHELL) ./sync-check.sh
 	$(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@