From: Nick Clifton <nickc@redhat.com>
To: Matthew Gretton-Dann <matthew.gretton-dann@arm.com>
Cc: "binutils@sourceware.org" <binutils@sourceware.org>,
Richard Earnshaw <Richard.Earnshaw@arm.com>
Subject: Re: [RFA/ARM]: Patch to workaround ARM1176 BLX (immediate) Thumb to ARM issue
Date: Thu, 28 Jul 2011 16:41:00 -0000 [thread overview]
Message-ID: <4E316C2B.6060906@redhat.com> (raw)
In-Reply-To: <4E3037DD.7030606@arm.com>
Hi Matthew,
> * When the option is on the linker will only use BLX if the target
> architecture (derived from the object files) is v6T2, v7, or
> greater.
This does not seem right to me. The erratum only applies to the
ARM1176JZ-S and ARM1176JZF-S processors and only to Thumb BLX
instructions. Disabling the use of BLX in ARM mode or for pre-ARM11
cores will generate needlessly larger code.
Also when you check the Tag_CPU_arch value, please use the enum names,
not the integer values.
Cheers
Nick
next prev parent reply other threads:[~2011-07-28 14:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-27 16:29 Matthew Gretton-Dann
2011-07-27 16:44 ` Joseph S. Myers
2011-07-28 16:41 ` Nick Clifton [this message]
2011-07-28 21:33 ` Matthew Gretton-Dann
2011-07-29 13:34 ` Matthew Gretton-Dann
2011-08-08 9:52 ` [PING] " Matthew Gretton-Dann
2011-08-09 12:17 ` Nick Clifton
2011-08-09 13:15 ` Matthew Gretton-Dann
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