I can confirm that native gdb64 talking to x86 Qemu gets incorrect double float registers values, 32-bit looks fine.
- [Qemu-devel] sparc64 gdb Paul Brook
- [Qemu-devel] Re: sparc64 gdb Paul Brook
- Re: [Qemu-devel] sparc64 gdb Blue Swirl
- Re: [Qemu-devel] sparc64 gdb Blue Swirl