[lttng-dev] Support for new arch 'ppc64le'

[Mathieu Desnoyers]

----- Original Message -----

> From: "ravi" <ravi at linux.vnet.ibm.com>
> To: lttng-dev at lists.lttng.org
> Sent: Sunday, March 2, 2014 8:02:12 PM
> Subject: [lttng-dev] Support for new arch 'ppc64le'

> Hi,

> We are in the process of adding support for new architecture 'ppc64le'
> (PowerPC 64 Little Endian) and as part of that, We have worked with libtool
> maintainer to get alpha release (links below) which has all the needed bits
> to support building on ppc64le arch.
> ftp://alpha.gnu.org/gnu/libtool/libtool-2.4.2.418.tar.gz(1.6MB)
> ftp://alpha.gnu.org/gnu/libtool/libtool-2.4.2.418.tar.xz(920KB)
> (A stable libtool release is expected soon this year)

> ' userspace-rcu-0.8.1' didn't build on 'ppc64le' system because of outdated
> libtoo.m4/config.guess files.
> Latest ' liburcu' source package we picked is from :
> http://lttng.org/files/urcu/userspace-rcu-0.8.1.tar.bz2

> Along with changes to libtool related files, we have found a patch available
> in ubuntu src repo, which is required to build 'liburcu' successfully on
> 'ppc64le' system.
> Im attaching the same patch which is created on top of "liburcu-0.7.7-1"...

> hence we request you to apply attached patch , and spin off a new version of
> 'liburcu' using the latest libtool alpha release . So that we can test
> ppc64le fixes.
> Your response is highly appreciated
Hi, 

I see that the patch you propose adds both "powerpc64le" and "aarch64" entries. Why are there two of them ? 

Moreover, it might be a bit aggressive to package the liburcu tarballs with an alpha version of libtool. When we 
understand more about the need for one or two specific entries into the configure.ac of liburcu, then we can add 
them, but until there is a stable version of libtool supporting those, you will probably have to create your own 
tarballs from the userspace RCU git repository using "make dist" against your alpha libtool. 

Thoughts ? 

Thanks, 

Mathieu 

> --
> Ravindran
> IBM LinuxTechnologyCenter

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-- 
Mathieu Desnoyers 
EfficiOS Inc. 
http://www.efficios.com 
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