linux-kernel - Re: [PATCH 1/3] kbuild: Increase kallsyms max symbol length v2

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Message-ID: <20131106212644.GB22142@pobox.suse.cz>
Date:	Wed, 6 Nov 2013 22:26:44 +0100
From:	Michal Marek <mmarek@...e.cz>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Joe Perches <joe@...ches.com>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org, Joe Mario <jmario@...hat.com>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/3] kbuild: Increase kallsyms max symbol length v2

On Wed, Oct 23, 2013 at 03:06:53PM +0200, Andi Kleen wrote:
> From: Joe Mario <jmario@...hat.com>
> 
> [AK: This seems like a ticking time bomb even without LTO,
> so should be merged now. It causes very weird problems.
> Thanks to Joe for tracking them down.]
> 
> With the added postfixes that LTO adds for local
> symbols, the longest name in the kernel overflows
> the namebuf[KSYM_NAME_LEN] array by two bytes.  That name is:
> __pci_fixup_resumePCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_HT1000SBquirk_disable_broadcom_boot_interrupt.1488004.672802
> 
> Double the max symbol name length.
> 
> v2: Use 255  (Joe Perches)
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Applied to kbuild.git#kbuild.

Michal
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