[Libguestfs] Plans for changing libguestfs appliance building

[Jinxin Zheng]

On 08/16/2010 09:06 PM, Richard W.M. Jones wrote:
> On Mon, Aug 16, 2010 at 07:21:12PM +0800, Jin Xin Zheng wrote:
>    
>> In fact when I saw this the first thing came up to my head was that our
>> modified source for doing gcov -- we could collect the .gcda files in
>> the build directory after libguestfs was invoked. But the guestfsd which
>> runs inside the appliance produces the .gcda files in the temp ramfs.
>>      
> I guess it writes it into / (ie. guestfsd's current directory which is
> pretty much always root)?
>
>    

Yes you are right. gcov does not care about the $pwd, it just outputs
.gcda files under the directory where I built the source, e.g.
/home/build/rpmbuild/BUILD/libguestfs-1.2.7/daemon

In order to download these files correctly, we have to use the debug
command to access the root filesystem, although building the source in a
directory under /sysroot may make things easier.

>> We have made a pretty lot of effort in order to tar-out these files
>> before the subprocess was killed.
>>      
> We have/had the same problem capturing core files too ...
>
> Rich.
>
>    

-- 
Regards.
Jinxin