Re: [Xen-devel] [Qemu-devel] Question to prefered

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Thu, 11 Apr 2013, Sander Eikelenboom wrote:
> > No. It depends a bit what you mean by "verbose debugging",
> > incidentally. QEMU has several commonly used logging options:
> 
> Well since Xen has the option to be build with "make debug=y" which also 
> disables optimizations, enables extra asserts and makes it more verbose.
> It could be handy to propagate that to the qemu-binary that is built in the 
> xen-tree to also be more verbose if it's built as part of a debug build.
> 
> That way you can ask a user to build a debug build, and not have a user edit 
> to much source to enable all the defines.
> 
> Apart from that the current xen-files in upstream qemu are much less verbose 
> than the old forked in tree qemu-traditional was, so that will also require 
> some adjustment.
> 
> Would a "--enable-debug-xen" config option be acceptable ?

I think that's not actually needed.
We should make better use of the following:


> > (2) the -d command line option, which lets the user enable
> > certain classes of logging by category (for example, this is
> > the best way to log "the guest did something weird which is
> > probably a guest bug" or "the guest tried to access something
> > we don't implement")
> > (3) tracepoints (see docs/tracing.txt)


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