Date: Sat, 14 Oct 2006 12:41:54 +0200
From: Sam Ravnborg <sam@ravnborg.org>
To: Adrian Bunk <bunk@stusta.de>
Cc: Stephen Hemminger <shemminger@osdl.org>, Andrew Morton <akpm@osdl.org>,
       linux-kernel@vger.kernel.org, Stephane Eranian <eranian@hpl.hp.com>
Subject: Re: [PATCH] rename net_random to random32
Message-ID: <20061014104154.GA26210@uranus.ravnborg.org>
References: <200610111900.k9BJ01M4021853@hera.kernel.org> <452D4491.30806@garzik.org> <20061011122938.7e81f4bc@freekitty> <20061012000749.be62f2e0.akpm@osdl.org> <20061012102638.7381269a@freekitty> <20061013181922.GB721@stusta.de>
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> EXPORT_SYMBOL's in lib-y are latent bugs (IMHO kbuild should error
> on them):

In practice module will not load becasue it cannot resolve symbol - right?

That aside we should not export symbols from lib-y. But I have not any good
idea how to catch this during build time unles doing some ugly grep magic.

One thing that could be done would be to check for a specific section
(__ksymtab_strings) in the .o file only for lib-y .o files.

The check could be something like:
objdump -h <file.o> | grep __ksymtab_strings

If grep give error code '0' then we exported a symbol.
I may try to cook up later this weekend.

        Sam

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