https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105708
roc at ocallahan dot org <roc at ocallahan dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |roc at ocallahan dot org --- Comment #9 from roc at ocallahan dot org <roc at ocallahan dot org> --- It is a limitation of rr that we can't handle LL/SC, but it's not a bug we can just fix or work around. There is just no way to handle it in rr without hardware changes. Thus, if we can't find a way around this bug here, many Aarch64 users won't be able to use rr when they otherwise would have been able to. That would be unfortunate.