linux-kernel - [PATCH] mksysmap: Fix the mismatch of 'L0' symbols in System.map

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Message-Id: <1662030659-21558-1-git-send-email-tangyouling@loongson.cn>
Date:   Thu,  1 Sep 2022 19:10:59 +0800
From:   Youling Tang <tangyouling@...ngson.cn>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Huacai Chen <chenhuacai@...nel.org>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        loongarch@...ts.linux.dev,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Xuerui Wang <kernel@...0n.name>, Xi Ruoyao <xry111@...111.site>
Subject: [PATCH] mksysmap: Fix the mismatch of 'L0' symbols in System.map

When System.map was generated, the kernel used mksysmap to filter the
kernel symbols, we need to filter "L0" symbols in LoongArch architecture.

$ cat System.map | grep L0
9000000000221540 t L0

The L0 symbol exists in System.map, but not in .tmp_System.map. When
"cmp -s System.map .tmp_System.map" will show "Inconsistent kallsyms
data" error message in link-vmlinux.sh script.

Signed-off-by: Youling Tang <tangyouling@...ngson.cn>
---
 scripts/mksysmap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/mksysmap b/scripts/mksysmap
index 9aa23d15862a..ad8bbc52267d 100755
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -41,4 +41,4 @@
 # so we just ignore them to let readprofile continue to work.
 # (At least sparc64 has __crc_ in the middle).
 
-$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)' > $2
+$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)\|\( L0\)' > $2
-- 
2.36.1