linux-kernel - [PATCH v2 00/14] objtool vs retpoline

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Message-Id: <20200428191101.886208539@infradead.org>
Date:   Tue, 28 Apr 2020 21:11:01 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     jpoimboe@...hat.com, alexandre.chartre@...cle.com
Cc:     linux-kernel@...r.kernel.org, jthierry@...hat.com,
        tglx@...utronix.de, x86@...nel.org, mbenes@...e.cz,
        peterz@...radead.org
Subject: [PATCH v2 00/14] objtool vs retpoline

Hi,

Based on Alexandre's patches, here's a few that go on top of tip/objtool/core.

With these patches on objtool can completely understand retpolines and RSB
stuffing, which means it can emit valid ORC unwind information for them, which
in turn means we can now unwind through a retpoline.

New since last time:

 - 1-3, alternatives vs ORC unwind
 - 7-9: implement some suggestions from Julien
 - addressed feedback