linux-kernel - [PATCH] kbuild: disable DEBUG_INFO

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Message-Id: <20200331164719.15930-1-slava@bacher09.org>
Date:   Tue, 31 Mar 2020 19:47:20 +0300
From:   Slava Bacherikov <slava@...her09.org>
To:     yamada.masahiro@...ionext.com
Cc:     andriin@...com, bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        ast@...nel.org, daniel@...earbox.net,
        Slava Bacherikov <slava@...her09.org>
Subject: [PATCH] kbuild: disable DEBUG_INFO_SPLIT when BTF is on

Currently turning on DEBUG_INFO_SPLIT when DEBUG_INFO_BTF is also
enabled will produce invalid btf file, since gen_btf function in
link-vmlinux.sh script doesn't handle *.dwo files.

Signed-off-by: Slava Bacherikov <slava@...her09.org>
---
 lib/Kconfig.debug | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index f61d834e02fe..a9429ef5eec8 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -223,6 +223,7 @@ config DEBUG_INFO_DWARF4
 config DEBUG_INFO_BTF
 	bool "Generate BTF typeinfo"
 	depends on DEBUG_INFO
+	depends on !DEBUG_INFO_SPLIT
 	help
 	  Generate deduplicated BTF type information from DWARF debug info.
 	  Turning this on expects presence of pahole tool, which will convert
-- 
2.24.1