[PATCH 12/12] gdb: use two displaced step buffers on amd64/Linux

[Simon Marchi]

On 2020-11-26 4:43 p.m., Simon Marchi wrote:
> I'll prepare a user branch with all those fixup patches so you can take
> a look, and if you think it makes sense I'll be ready for a v2.

Ok, I pushed the branch with the performance fixes on Sourceware, branch
users/simark/concurrent-displaced-step-1-with-perf-fixes.

I merged patches C and E into the idea I mentioned in my last message,
where it's the gdbarch that sets and resets the unavailable flag
whenever it wants to.

And note that I haven't addressed the error reporting issues in patch 9 yet.

Simon