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build issues against outdated headers without seeing a warning about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outdated headers (if any).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@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index f591c4d1b6fe29b0873208705d238399be707527..d1ab0ccb70c77aff4538793054b71aae029a32b5 100644 (file)
--- 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 $@