Subject: [RFC PATCH 2/4] objtool: Enable objtool to run only on files with ftrace enabled

From: Sathvika Vasireddy <[email-masked]>
Date: Mon, 23 May 2022 23:25:46 +0530

This patch makes sure objtool runs only on the object files
that have ftrace enabled, instead of running on all the object
files.

Signed-off-by: Naveen N. Rao <[email-masked]>
Signed-off-by: Sathvika Vasireddy <[email-masked]>
---
 scripts/Makefile.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 2e0c3f9c1459..06ceffd92921 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -258,8 +258,8 @@ else
 # 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
 # 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
 
-$(obj)/%.o: objtool-enabled = $(if $(filter-out y%, \
-	$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n),y)
+$(obj)/%.o: objtool-enabled = $(and $(if $(filter-out y%, $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n),y),        \
+        $(if $(findstring $(strip $(CC_FLAGS_FTRACE)),$(_c_flags)),y),y)
 
 endif
 
-- 
2.25.1