timerfd in FreeBSD jail?

[James Gritton]

> On 2016-09-06 07:08, Grzegorz Junka wrote:
>> On 06/09/2016 12:49, James Gritton wrote:
>> On 2016-09-06 05:38, Grzegorz Junka wrote:
>> I am trying to compile dart-sdk in Centos 6 that's running in a
>> FreeBSD jail. I am getting the following error:
>> 
>> runtime/bin/eventhandler_linux.cc:114: error: Failed creating timerfd
>> file descriptor: 38
>> 
>> Is this a limitation of the jail or I need to enable something to have
>> it available?
>> No idea, given that error message and unfamiliarity with the source.  
>> Is there a linux system call or at >least library function you can 
>> narrow it down to?
> 
> Yes, this is when compiling sipxecs https://github.com/sipXcom/sipxecs, 
> which uses the dart-sdk package >(dart_1.9.1-1_amd64.deb). The dart-sdk 
> has been installed as instructed in this email (by unpacking a .deb):
> 
> https://groups.google.com/forum/#!msg/sipxcom-dev/EeRsfbh32CA/QXalcr0S2p4J
> 
> And the actual file with the error is here (probably not the same 
> version):
> 
> https://github.com/dart-lang/sdk/blob/master/runtime/bin/eventhandler_linux.cc#L114
> 
> So, the linux call would be timerfd_create

It's not a jail problem, but a linux emulation problem.  timerfd_create 
isn't implemented in FreeBSD's linux emulation.  Of note, the "38" is 
linux's ENOSYS errno code.

- Jamie