GDB 16.3: is it possible to cross-debug an x64 core from ARM?

[Paul Smith]

On Mon, 2025-12-01 at 16:13 -0500, Simon Marchi wrote:
> I think I found the problem:
> 
> https://gitlab.com/gnutools/binutils-gdb/-
> /blob/887bcaf98ea8e1ef76f6dd429b01b5258a782172/sim/configure.ac#L73
> 
> We essentially do:
> 
>     for targ in aarch64-unknown-linux-gnu x86_64-linux-gnu; do
>         // try to match $targ against all known targets
>     done

Thanks, I was in the middle of looking at that when I got your email :)

I submitted a patch to fix this:
https://sourceware.org/pipermail/gdb-patches/2025-December/223119.html

I did it a different way than the simplest option, but that to me seems
safer and more reliable.  I tried to keep with the same style used in
other sh code in configure.ac.