linux-kernel - [PATCH v2 00/19] objtool: vmlinux.o and noinstr validation

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Message-Id: <20200317170234.897520633@infradead.org>
Date:   Tue, 17 Mar 2020 18:02:34 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     tglx@...utronix.de, jpoimboe@...hat.com
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org, peterz@...radead.org,
        mhiramat@...nel.org, mbenes@...e.cz, brgerst@...il.com
Subject: [PATCH v2 00/19] objtool: vmlinux.o and noinstr validation

Hi all,

Moar patches. This implements the proposed objtool validation for the

  noinstr -- function attribute
  instr_{begin,end}() -- annotation

Who's purpose is to annotate such code that has constraints on instrumentation
-- such as early exception code. Specifically it makes it very hard to
accidentally add code to such regions.

I've left the whole noinstr naming in place, we'll bike-shed on that later.

This should address all feedback from RFC/v1.