linux-kernel - Re: [PATCH 05/10] kbuild: sort the list of symbols exported by the kernel (_

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Message-Id: <200911041849.43311.rusty@rustcorp.com.au>
Date:	Wed, 4 Nov 2009 18:49:42 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Alan Jenkins <alan-jenkins@...fmail.co.uk>
Cc:	greg@...ah.com, linux-kbuild@...r.kernel.org, carmelo73@...il.com,
	linux-kernel@...r.kernel.org, Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH 05/10] kbuild: sort the list of symbols exported by the kernel (__ksymtab)

On Tue, 3 Nov 2009 08:36:17 pm Alan Jenkins wrote:
> +/*
> + * We use CPP macros since they are more familiar than assembly macros.
> + * Note that CPP macros eat newlines, so each statement must be terminated
> + * by a semicolon.
> + */
> +
> +#ifdef CONFIG_HAVE_SYMBOL_PREFIX
> +#define __SYM(sym) _##sym
> +#else
> +#define __SYM(sym) sym
> +#endif

Ideally, you would used MODULE_SYMBOL_PREFIX here, but of course it's a
string.  I don't think Kconfig can do arbitrary identifiers, so we can't
make CONFIG_SYMBOL_PREFIX empty or _.

Perhaps clarify it to a bool CONFIG_HAVE_MODULE_UNDERSCORE_PREFIX then,
since that's what you're assuming here?

Thanks,
Rusty.
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