linux-kernel - Re: [PATCH 3/3] objtool: Enable compilation of objtool for all architectures

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Message-ID: <20200519211829.p2d454nz3h3mdxsa@treble>
Date:   Tue, 19 May 2020 16:18:29 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Matt Helsley <mhelsley@...are.com>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Julien Thierry <jthierry@...hat.com>,
        Miroslav Benes <mbenes@...e.cz>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 3/3] objtool: Enable compilation of objtool for all
 architectures

On Tue, May 19, 2020 at 01:55:33PM -0700, Matt Helsley wrote:
> +const char __attribute__ ((weak)) *objname;
> +
> +int missing_check(const char *_objname, bool orc)
> +{
> +	return 127;
> +}
> +
> +int __attribute__ ((weak, alias("missing_check"))) check(const char *_objname, bool orc);
> +
> +int missing_orc_dump(const char *_objname)
> +{
> +	return 127;
> +}
> +
> +int __attribute__ ((weak, alias("missing_orc_dump"))) orc_dump(const char *_objname);
> +
> +int __attribute__ ((weak)) create_orc(struct objtool_file *file)
> +{
> +	return 127;
> +}
> +
> +int __attribute__ ((weak)) create_orc_sections(struct objtool_file *file)
> +{
> +	return 127;
> +}

I think the aliased "missing_" functions are no longer needed, right?
i.e. can we just have weak versions of check() and orc_dump()?

Otherwise everything looks good to me.

-- 
Josh