On 12/15/23 07:04, Mark Rutland wrote: > On Thu, Dec 14, 2023 at 02:49:29PM -0600, Madhavan T. Venkataraman wrote: >> Hi Mark, > > Hi Madhavan, > >> I attended your presentation in the LPC. You mentioned that you could use >> some help with some pre-requisites for the Livepatch feature. >> I would like to lend a hand. > > Cool! > > I've been meaning to send a mail round with a summary of the current state of > things, and what needs to be done going forward, but I haven't had the time > since LPC to put that together (as e.g. that requires learning some more about > SFrame). I'll be disappearing for the holiday shortly, and I intend to pick > that up in the new year. > >> What would you like me to implement? > > I'm not currently sure exactly what we need/want to implement, and as above I > think that needs to wait until the new year. > OK. > However, one thing that you can do that would be very useful is to write up and > report the GCC DWARF issues that you mentioned in: > > https://lore.kernel.org/linux-arm-kernel/20230202074036.507249-1-madvenka@xxxxxxxxxxxxxxxxxxx/ > > ... as (depending on exactly what those are) those could also affect SFrame > generation (and thus we'll need to get those fixed in GCC), and regardless it > would be useful information to know. > > I understood that you planned to do that from: > > https://lore.kernel.org/linux-arm-kernel/054ce0d6-70f0-b834-d4e5-1049c8df7492@xxxxxxxxxxxxxxxxxxx/ > > ... but I couldn't spot any relevant mails or issues in the GCC bugzilla, so > either I'm failing to search hard enough, or did that get forgotten about? > Yeah. I had notes on that. But I seem to have lost them. I need to reproduce the problems and analyze them again which is not trivial. So, I have been procrastinating. I am also disappearing for the rest of this year. I will try to look at it in the new year. >> I would also like to implement Unwind Hints for the feature. If you want a >> specific format for the hints, let me know. > > I will get back to you on that in the new year; I think the specifics we want > are going to depend on other details above we need to analyse first. > OK. For now, I will implement something and send it out just for reference. We can revisit this topic next year sometime. Thanks. Madhavan
