Re: [Predef-contribute] Predefined macro updates and fixes

[Bjorn R. <br...@ma...>]

On 2012-12-10 12:24, Guillem Jover wrote:

> I just found the reply on the mailing list archive, please CC me as
> I'm not subscribed, thanks.

Will do.

Thanks for your detailed reply. Most of the information has been added
now. More replies below.

> On Fri, 2012-11-23 at 19:25:45 +0100, Guillem Jover wrote:
>> For GNU/kFreeBSD both __FreeBSD_kernel__&&  __GLIBC__ should be
>> checked, because FreeBSD has started defining __FreeBSD_kernel__
>> (since FreeBSD 8.3, FreeBSD 9.1 and FreeBSD 10.0 on those branches).

I have added this to the FreeBSD and GNU/kFreeBSD entries.

Just out of curiosity, do you know why it doesn't define something like
a __gnu_freebsd__ macro?

>> For GNU/Hurd, __gnu_hurd__ is also defined, and because it's currently
>> based on the GNU Mach kernel, so is __MACH__.

I have added the __gnu_hurd__ macro. I assume that this is sufficient to
identify GNU/Hurd.

>> The new ARM64 architecture (officially called with the unfortunate
>> name of AArch64...), defines the __aarch64__, __AARCH64EB__ and
>> __AARCH64EL__ macros (the last two for big and little endian variants).

The __aarch64__ has been added to the architecture page, and the other
macros to the endianness page.

>> The new x32 architecture (or different ABI for AMD64, depending how
>> one looks at it), can be distinguished with __amd64__&&  __ILP32__.

This has been tentatively captured on:

   http://sourceforge.net/p/predef/wiki/DataModels/