From: "panxh_ran at 163 dot com" <sourceware-bugzilla@sourceware.org>
To: elfutils-devel@sourceware.org
Subject: [Bug tools/29282] New: eu-addr2line -k doesn't display correct file:line in arm.
Date: Fri, 24 Jun 2022 00:16:49 +0000 [thread overview]
Message-ID: <bug-29282-10460@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=29282
Bug ID: 29282
Summary: eu-addr2line -k doesn't display correct file:line in
arm.
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tools
Assignee: unassigned at sourceware dot org
Reporter: panxh_ran at 163 dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
Hello, when using eu-addr2line -k to get line infomation of kernel symbols, it
often displays wrong file:line in arm.
Steps：
1.Get func address from /proc/kallsyms.
2.Use eu-addr2line -k <address> to get file name and line number.
Compare the line number with source file，and we find the line number is wrong.
It seems that the following kernel commit that adds NOPs at function entry
causes the problem.
Elfutils needs to adapt this feature.
> Fixes: 3b23e4991fb6 ("arm64: implement ftrace with regs")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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next reply other threads:[~2022-06-24 0:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-24 0:16 panxh_ran at 163 dot com [this message]
2022-06-24 1:12 ` [Bug tools/29282] " fche at redhat dot com
2023-10-05 15:29 ` mark at klomp dot org
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