On 10/5/22 16:50, Qing Zhao wrote: > I have two questions on this: Hello.
> > 1. What’s the motivation to enable -flive-patching with -flto? Is there any > application that will try -flive-patching with -flto now? We're planning supporting GCC LTO Linux kernel support, so that's one motivation. And the second one is a possible use in user-space livepatching. Note majority of modern distros default to -flto (openSUSE, Fedora, Debian, Ubuntu, ...). > > 2. Why only enable -flive-patching=inline-clone with -flto? Because the inline-only-static level (which you added/requested) would have to properly block inter-procedural inlining that happens in LTO (can_inline_edge_by_limits_p) and I'm not sure it would be properly blocked. So, feel free to extend my patch if you want? Martin > > thanks.
