[alsa-devel] [PATCH] ASoC: prevent compilers from optimising pll calculation into __aeabi__uldivmod
21cnbao at gmail.com
Wed Apr 27 17:23:39 CEST 2011
2011/4/27 Mark Brown <broonie at opensource.wolfsonmicro.com>:
> On Wed, Apr 27, 2011 at 11:00:18PM +0800, Barry Song wrote:
>> 2011/4/27 Mark Brown <broonie at opensource.wolfsonmicro.com>
>> > If we do have to do something in the callers rather than in do_div() the
>> > annotation seems substantially more taseful than inserting a random asm
>> > into the code.
>> I agree. for this patch which will not be applied, people can just get
>> information about how to workaround the gcc issue while they have the
>> same problem. google can find there are other people who failed to
>> compile wm8974 module too. eg.
>> Andrew Stubbs, Michael Hope in Linaro's toolchain team are working
>> hard on this gcc issue. there have been many update today:
> Is this just some Linaro toolchain that has the issue rather than a
> vanilla GCC release? If so and they fix the compiler bug it doesn't
> seem terribly useful to bodge it in mainline.
i am guessing it is a generic gcc issue since Michael posted it at
http://gcc.gnu.org/bugzilla not Linaro's Launchpad. not sure :-)
More information about the Alsa-devel