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Re: [Libguestfs] Plans for changing libguestfs appliance building

On Tue, Aug 17, 2010 at 10:13:59AM +0800, Jinxin Zheng wrote:
> 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.

It looks like we'll be using a writable root device anyway, so
problem solved ...


Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine.  Supports Linux and Windows.

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