From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] ARM: add jump label support
Date: Tue, 22 Nov 2011 15:02:31 -0800 [thread overview]
Message-ID: <4ECC2A07.8050701@codeaurora.org> (raw)
In-Reply-To: <20111122194213.GC9581@n2100.arm.linux.org.uk>
On 11/22/11 11:42, Russell King - ARM Linux wrote:
> On Mon, Nov 21, 2011 at 08:43:49PM +0530, Rabin Vincent wrote:
>> Add the arch-specific code to support jump labels for ARM and Thumb-2.
>>
>> Note that to build succesfully it requires (what will be) GCC 4.7.0
>> because of incomplete support for the '%c' specifier in earlier
>> versions:
>>
>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48637
>>
>> Cc: Jason Baron <jbaron@redhat.com>
>> Signed-off-by: Rabin Vincent <rabin@rab.in>
> This appears to imply that with this patch, we're upping the minimum
> gcc version for successfully building kernels to 4.7.0. That's _way_
> too early (I'm using 4.3.5 here and don't have plans to update.)
Is there a way to detect that the compiler doesn't support %c? Perhaps
we can do that in the same spirit of how we detect asm goto support for
jump labels.
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
next prev parent reply other threads:[~2011-11-22 23:02 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-21 15:13 [PATCH 1/4] ARM: ftrace: use canonical Thumb-2 wide instruction format Rabin Vincent
2011-11-21 15:13 ` [PATCH 2/4] ARM: extract out insn generation code from ftrace Rabin Vincent
2011-11-22 12:02 ` Dave Martin
2011-11-22 13:32 ` Rabin Vincent
2011-11-22 13:56 ` Dave Martin
2011-11-22 18:25 ` Rabin Vincent
2011-11-23 11:50 ` Dave Martin
2011-11-24 16:10 ` Rabin Vincent
2011-11-21 15:13 ` [PATCH 3/4] ARM: extract out code patch function from kprobes Rabin Vincent
2011-11-22 8:48 ` Tixy
2011-11-22 18:03 ` Rabin Vincent
2011-11-21 15:13 ` [PATCH 4/4] ARM: add jump label support Rabin Vincent
2011-11-22 19:42 ` Russell King - ARM Linux
2011-11-22 23:02 ` Stephen Boyd [this message]
2011-11-22 23:39 ` Jason Baron
2011-11-22 23:50 ` Jason Baron
2011-11-23 14:55 ` Rabin Vincent
2011-11-23 14:55 ` Rabin Vincent
2011-11-23 17:53 ` Russell King - ARM Linux
2011-11-23 17:53 ` Russell King - ARM Linux
2011-11-28 17:04 ` Rabin Vincent
2011-11-28 17:04 ` Rabin Vincent
2012-01-24 15:43 ` Rabin Vincent
2012-01-24 16:05 ` Russell King - ARM Linux
2012-01-24 16:57 ` Rabin Vincent
2011-11-22 12:02 ` [PATCH 1/4] ARM: ftrace: use canonical Thumb-2 wide instruction format Dave Martin
2011-11-22 18:00 ` Rabin Vincent
2011-11-23 14:42 ` Dave Martin
2011-11-24 7:22 ` Bi Junxiao
2011-11-25 10:10 ` Dave Martin
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