I believe rr should support other languages exactly as well as gdb does; I've looked at some Rust in it once or twice at least, and IIRC even some Go; though I'

I believe rr should support other languages exactly as well as gdb does; I've looked at some Rust in it once or twice at least, and IIRC even some Go; though I'm happy enough with doing assembly-level breakpoints/whatnot so I can't comment on more fancy things. Even some OpenJDK JIT! (though there of course source-mapping/stacktraces are non-existent, never mind reading variables, but even then I managed to hack together some basic source-mapping at https://github.com/dzaima/grr#java-jit https://github.com/dzaima/grr#java-jit; though it's rather unusable with rr due to OpenJDK's machine code dumping going directly to stdout, and general slowness). That said, it would be very neat to have a more complete standard debugging interface across ahead-of-time-compiled code, interpreters, and JITs. And it does have some aarch64 support by now, though it'll still require a suitable CPU with necessary perf counters.