On Thu, Jan 19, 2023 at 12:00:41PM +0000, Daniel P. Berrangé wrote: > On Thu, Jan 19, 2023 at 12:49:48PM +0100, Philippe Mathieu-Daudé wrote: > > So to detect makecontext() I have to add > > --extra-cflags=-mmacosx-version-min=10.5 but then linking fails with > > multiple "$LIBNAME was built for newer macOS version (13.0) than being > > linked (11.0)". > > Yes, ucontext has been deprecated forever on macOS, but in practice it > has still been functional if you define _XOPEN_SOURCE, which is what > gtk-vnc has done traditionally. > > I presume this is on the aarch64 macOS though, and so all bets are off > wrt ucontext backend unless someone knows it works correctly with the > m1 port. I fear that's not the case though, given the wierd error > scenario we're hitting in gtk-vnc.
Yep, I've confirmed there's something broken with gtk-vnc. When we call 'getcontext' is corrupts memory in gtk-vnc structs. This makes me believe that the defined 'struct ucontext_t' is too small for use with 'getcontext' on macOS aarch64 platforms. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
