From: Andreas Schwab <schwab@linux-m68k.org>
To: gerg@snapgear.com
Cc: linux-m68k@vger.kernel.org, uclinux-dev@uclinux.org,
Greg Ungerer <gerg@uclinux.org>
Subject: Re: [PATCH 1/3] m68k: consistently call ret_from_exception in entry code
Date: Tue, 15 May 2012 10:18:08 +0200 [thread overview]
Message-ID: <m21uml6enz.fsf@igel.home> (raw)
In-Reply-To: <1337064949-966-2-git-send-email-gerg@snapgear.com> (gerg@snapgear.com's message of "Tue, 15 May 2012 16:55:47 +1000")
<gerg@snapgear.com> writes:
> The ret_from_excption code is referenced by its function name, or by a label
> set at the start of its code. Modify all uses to consistently just use the
> function name "ret_from_exception".
This will cause all branches to use the long variant, because
ret_from_exception is a global symbol (and thus overridable in the ELF
model). The point of the additional local label is to allow the
assembler to relax the branches.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2012-05-15 8:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-15 6:55 [PATCH 00/03] m68k: clean up and merge MMU and non-MMU versions of entry.S gerg
2012-05-15 6:55 ` [PATCH 1/3] m68k: consistently call ret_from_exception in entry code gerg
2012-05-15 8:18 ` Andreas Schwab [this message]
2012-05-16 3:38 ` Greg Ungerer
2012-05-15 6:55 ` [PATCH 2/3] m68k: use jbsr to call functions instead of bsrl gerg
2012-05-15 6:55 ` [PATCH 3/3] m68k: merge the MMU and non-MMU versions of the entry.S code gerg
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