[lttng-dev] urcu AC_FUNC_MALLOC fails for cross-compile

[Mathieu Desnoyers]

----- On Jun 14, 2016, at 12:26 PM, Luke K D'Alessandro ldalessa at indiana.edu wrote:

>> On Jun 14, 2016, at 12:21 PM, Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
>> wrote:
>> 
>> ----- On Jun 14, 2016, at 12:12 PM, Luke K D'Alessandro ldalessa at indiana.edu
>> wrote:
>> 
>>> The AC_FUNC_MALLOC depends on some runtime results which doesn't work when cross
>>> compiling. Google has a bit to say about this and basically the fix is to stop
>>> using the macro. Is there a specific purpose for this check, or could it just
>>> be eliminated from configure.ac?
>> 
>> If we remove this check, we need to ensure that URCU does not depend
>> on malloc(0) returning non-NULL anywhere.
> 
> Okay, I’m not sure what the implications are this for you. We have a test
> infrastructure that tries to download, build, and link liburcu using a cross
> compiler for 32-bit arm platforms, but it fails because of this check. I will
> try and figure out how to get a binary version of liburcu installed permanently
> somewhere that the cross compiler toolchain can find.

Can you give us some details on how it fails ?

configure output and config.log

Thanks,

Mathieu


> 
> Thanks,
> Luke
> 
>> 
>> Thanks,
>> 
>> Mathieu
>> 
>>> 
>>> Thanks,
>>> Luke
>>> 
>>> _______________________________________________
>>> lttng-dev mailing list
>>> lttng-dev at lists.lttng.org
>>> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>> 
>> --
>> Mathieu Desnoyers
>> EfficiOS Inc.
> > http://www.efficios.com

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