linux-kernel - [PATCH v2] kbuild: use -fmacro-prefix-map for .S sources compilation

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Message-Id: <20201102114623.93323-1-dzagorui@cisco.com>
Date:   Mon,  2 Nov 2020 03:46:23 -0800
From:   Denys Zagorui <dzagorui@...co.com>
To:     masahiroy@...nel.org
Cc:     michal.lkml@...kovi.net, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, dzagorui@...co.com
Subject: [PATCH v2] kbuild: use -fmacro-prefix-map for .S sources compilation

Follow-up to a73619a845d5 ("kbuild: use -fmacro-prefix-map to make
__FILE__ a relative path") commit. Assembler sources also use __FILE__
macro so this flag should be also apllied to that sources.

Signed-off-by: Denys Zagorui <dzagorui@...co.com>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index ee2284a5cad2..81e480fc6805 100644
--- a/Makefile
+++ b/Makefile
@@ -946,7 +946,7 @@ KBUILD_CFLAGS   += $(call cc-option,-Werror=incompatible-pointer-types)
 KBUILD_CFLAGS   += $(call cc-option,-Werror=designated-init)
 
 # change __FILE__ to the relative path from the srctree
-KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
+KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 
 # ensure -fcf-protection is disabled when using retpoline as it is
 # incompatible with -mindirect-branch=thunk-extern
-- 
2.19.0.dirty