[PATCH 0/7] Add "Windows" OS ABI

[Eli Zaretskii]

> From: Simon Marchi <simon.marchi@polymtl.ca>
> Cc: Eli Zaretskii <eliz@gnu.org>,
> 	Jon Turney <jon.turney@dronecode.org.uk>,
> 	Simon Marchi <simon.marchi@polymtl.ca>
> Date: Mon, 16 Mar 2020 13:08:38 -0400
> 
> This patchset started out as a single patch to have the OS ABI Cygwin
> applied to Windows x86-64 binaries, here:
> 
>     https://sourceware.org/legacy-ml/gdb-patches/2020-03/msg00195.html
> 
> with the follow-up here:
> 
>     https://sourceware.org/pipermail/gdb-patches/2020-March/000022.html
> 
> Eli pointed out that it doesn't make sense for binaries compilied with
> MinGW to have the Cygwin OS ABI, that there should be separate OS ABIs
> for Cygwin and non-Cygwin Windows binaries.  This already came up in the
> following bug report:
> 
>     https://sourceware.org/bugzilla/show_bug.cgi?id=21500#add_comment
> 
> This patchset does a bit of refactor in that area.  Most importantly, it:
> 
> - adds a "Windows" OS ABI
> - makes GDB recognize the proper OS ABI (Cygwin or Windows) when
>   loading executables
> - makes the builtin long type on Cygwin be 64 bits long

Thanks for working on this, the changes LGTM.