linux-kernel - Re: [PATCH 0/8] unwind, arm64: add sframe unwinder for kernel

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Message-ID: <20250220182221.vdmmnoyvc2do5mnn@jpoimboe>
Date: Thu, 20 Feb 2025 10:22:21 -0800
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: Song Liu <song@...nel.org>
Cc: Puranjay Mohan <puranjay@...nel.org>, Weinan Liu <wnliu@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Indu Bhagat <indu.bhagat@...cle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Mark Rutland <mark.rutland@....com>, roman.gushchin@...ux.dev,
	Will Deacon <will@...nel.org>, Ian Rogers <irogers@...gle.com>,
	linux-toolchains@...r.kernel.org, linux-kernel@...r.kernel.org,
	live-patching@...r.kernel.org, joe.lawrence@...hat.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/8] unwind, arm64: add sframe unwinder for kernel

On Wed, Feb 19, 2025 at 08:50:09PM -0800, Song Liu wrote:
> Indu, is this behavior (symbols with same name are not in
> sorted order from readelf -s) expected? Or is this a bug?
> I am using this gcc:
> 
> $ gcc --version
> gcc (GCC) 14.2.1 20240801 (Red Hat 14.2.1-1)
> Copyright (C) 2024 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Are you using different binutils versions as well?

It sounds like a linker "issue" to me.  I'm not sure if it qualifies as
a bug, the linker might be free to layout symbols how it wishes.

-- 
Josh