[PATCH 2/3] gcc: xtensa: use dynconfig settings as builtin-macros

[Max Filippov]

On Thu, Jul 20, 2023 at 10:45 AM Alexey Lapshin
<alexey.lapshin@espressif.com> wrote:
>
> On Thu, 2023-07-20 at 08:25 -0700, Max Filippov wrote:
> > But it defines them with their respective values.
> > Just notice that it adds two leading underscores in front of the names.
>
> Why builtin macros were defined with prefix?
> With this approach I also need define it somewhere:
>
> #define XTHAL_ABI_WINDOWED  __XTHAL_ABI_WINDOWED
> #define XTHAL_ABI_CALL0     __XTHAL_ABI_CALL0
> .....
>
> Or add prefix to macros in existing code that also looks not good..
>
> I want to get idea why toolchain can't have builtin macros with the same names?

Because 1) it will break existing code and 2) it's just not nice to pollute
the namespace.

-- 
Thanks.
-- Max