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Date: Mon, 13 Nov 2017 12:10:13 -0800
From: Andi Kleen <ak@linux.intel.com>
Subject: Re: CONFIG_DEBUG_INFO_SPLIT impacts on faddr2line
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To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>, Jeff Kirsher <jeffrey.t.kirsher@intel.com>, Network Development <netdev@vger.kernel.org>, "David S. Miller" <davem@davemloft.net>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, intel-wired-lan@lists.osuosl.org, Michal Marek <mmarek@suse.cz>, Sam Ravnborg <sam@ravnborg.org>, Dirk Gouders <dirk@gouders.net>, Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>, kbuild test robot <lkp@intel.com>, "Zhang, Rui" <rui.zhang@intel.com>, "Lu, Aaron" <aaron.lu@intel.com>, hjl.tools@gmail.com

> Put another way: the CONFIG_DEBUG_INFO_SPLIT option is useless. Yes,
> it saves time and disk space, but does so at the expense of making all
> the debug information unavailable to basic tools.

You're right. It works for line information, but strangely not for
inlines. I assume it can be fixed.

-Andi