linux-kernel - Re: [RFC PATCH v2 09/20] objtool: arm64: Implement command to invoke the decoder

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Message-ID: <YoznLR30T+03Ea08@sirena.org.uk>
Date:   Tue, 24 May 2022 15:09:49 +0100
From:   Mark Brown <broonie@...nel.org>
To:     madvenka@...ux.microsoft.com
Cc:     jpoimboe@...hat.com, peterz@...radead.org, chenzhongjin@...wei.com,
        mark.rutland@....com, nobuta.keiya@...itsu.com,
        sjitindarsingh@...il.com, catalin.marinas@....com, will@...nel.org,
        jamorris@...ux.microsoft.com, linux-arm-kernel@...ts.infradead.org,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 09/20] objtool: arm64: Implement command to invoke
 the decoder

On Mon, May 23, 2022 at 07:16:26PM -0500, madvenka@...ux.microsoft.com wrote:
> From: "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
> 
> Implement a built-in command called cmd_fpv() that can be invoked as
> follows:
> 
> 	objtool fpv generate file.o
> 
> The built-in command invokes decode_instructions() to walk each function
> and decode the instructions of the function.

In commit b51277eb9775ce91 ("objtool: Ditch subcommands") Josh removed
subcommands so this interface is going to need a rethink.

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