Re: [ptxdist] Including valgrind in the configuration doesn't trigger an un-optimized build of glibc.

["Crim, Jason" <jason.crim@thyssenkrupp.com>]

I'd noticed that the cortexa8 toolchain was not available when I was starting to set up a new test build-environment with the latest versions.  We're using the TI AM3352.

Thanks,
 - Jason

-----Original Message-----
From: ptxdist [mailto:ptxdist-bounces@pengutronix.de] On Behalf Of Michael Olbrich
Sent: Monday, April 09, 2018 4:41 AM
To: ptxdist@pengutronix.de
Subject: Re: [ptxdist] Including valgrind in the configuration doesn't trigger an un-optimized build of glibc.

Hi,

On Thu, Apr 05, 2018 at 02:41:38PM -0500, Crim, Jason wrote:
> I've got my toolchain switched to the arm-v7a-linux-gnueabihf (from 
> the arm-cortexa8-linux-gnueabihf), and valgrind is now working.  It 
> complains about _armv7_tick being an unrecognized instruction, but my 
> program does continue to run (in defiance of valgrind's warning message).
> 
> Long term, what are the trade-offs for using the v7a vs. the cortexa8 
> toolchains in production?  I do not know the history of the decision 
> in my organization, but the cortex toolchain was in place before my 
> arrival.  I'm trying to decide whether to keep the change local on my 
> dev/debug system, or suggest a migration.

I recommend using v7a. It uses the same settings as most armhf distributions, so this has better test coverage. I actually dropped the
cortexa8 toolchain from the latest OSELAS.Toolchain release.
It may be a bit slower depending on your hardware. What's your cpu anyways?

Michael

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