From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-130.freemail.mail.aliyun.com ([115.124.30.130]:49849 "EHLO out30-130.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725616AbgFBHpb (ORCPT ); Tue, 2 Jun 2020 03:45:31 -0400 From: ashimida Subject: [PATCH v2] mksysmap: Fix the mismatch of '.L' symbols in System.map Date: Tue, 2 Jun 2020 15:45:17 +0800 Message-Id: <1591083917-63371-1-git-send-email-ashimida@linux.alibaba.com> In-Reply-To: <1590920904-60002-1-git-send-email-alios_sys_security@linux.alibaba.com> References: <1590920904-60002-1-git-send-email-alios_sys_security@linux.alibaba.com> Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: masahiroy@kernel.org, michal.lkml@markovi.net Cc: linux-kbuild@vger.kernel.org, ashimida When System.map was generated, the kernel used mksysmap to filter the kernel symbols, but all the symbols with the second letter 'L' in the kernel were filtered out, not just the symbols starting with 'dot + L'. For example: ashimida@ubuntu:~/linux$ cat System.map |grep ' .L' ashimida@ubuntu:~/linux$ nm -n vmlinux |grep ' .L' ffff0000088028e0 t bLength_show ...... ffff0000092e0408 b PLLP_OUTC_lock ffff0000092e0410 b PLLP_OUTA_lock In the original patch[1], the original intent should be to filter out all local symbols starting with '.L', so the dot should be escaped. [1]. mksysmap: Add h8300 local symbol pattern Signed-off-by: ashimida --- scripts/mksysmap | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/mksysmap b/scripts/mksysmap index a35acc0..9aa23d1 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 '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)' > $2 -- 2.7.4