linux-kernel - Re: [PATCH v2 06/11] x86/unwind/orc: Convert global variables to static

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Date: Thu, 29 Feb 2024 18:40:27 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>, Vince
 Weaver <vincent.weaver@...ne.edu>, Dave Jones <dsj@...com>, Jann Horn
 <jannh@...gle.com>, Miroslav Benes <mbenes@...e.cz>, Andy Lutomirski
 <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Masami Hiramatsu
 <mhiramat@...nel.org>, Nilay Vaish <nilayvaish@...gle.com>
Subject: Re: [PATCH v2 06/11] x86/unwind/orc: Convert global variables to
 static

On Wed, 28 Feb 2024 16:42:52 -0800
Josh Poimboeuf <jpoimboe@...nel.org> wrote:

> DWARF isn't needed for that.  Even the symbol table has it (as does
> System.map).  For both globals and statics.

Interesting enough, it is reported that if lookup_num_blocks is global,
crash returns the proper value. If it is static, it just returns "1", which
is incorrect (the correct value is around 60K).

-- Steve