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Date:      Sat, 11 Aug 2018 07:30:36 +0800
From:      Erich Dollansky <freebsd.ed.lists@sumeritec.com>
To:        Warner Losh <imp@bsdimp.com>
Cc:        blubee blubeeme <gurenchan@gmail.com>, FreeBSD current <freebsd-current@freebsd.org>
Subject:   Re: #includes and #defined
Message-ID:  <20180811073036.0971575d.freebsd.ed.lists@sumeritec.com>
In-Reply-To: <CANCZdfqXYKU=qq=YJy3CcVu0fDMdfBJYwKR2LL-5Cwoq%2BbB-kA@mail.gmail.com>
References:  <CALM2mEnRxQKcgmpMhg0yVX0iF9JhFPyJKZ6BOrvT7kQTas9jEA@mail.gmail.com> <20180810082813.3a165d2b.freebsd.ed.lists@sumeritec.com> <CALM2mE==pj2%2B0iE5hTkDLAruAU8DFobpdnQDCLMhTV0J04sWqA@mail.gmail.com> <20180810135149.6a95b233.freebsd.ed.lists@sumeritec.com> <CANCZdfqXYKU=qq=YJy3CcVu0fDMdfBJYwKR2LL-5Cwoq%2BbB-kA@mail.gmail.com>

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Hi,

On Fri, 10 Aug 2018 07:53:19 -0600
Warner Losh <imp@bsdimp.com> wrote:

> On Thu, Aug 9, 2018 at 11:51 PM, Erich Dollansky <
> freebsd.ed.lists@sumeritec.com> wrote:  
> 
> > On Fri, 10 Aug 2018 12:40:48 +0800
> > blubee blubeeme <gurenchan@gmail.com> wrote:
> >  
> > >
> > > What about the architecture name is it recommended to use x86_64
> > > or amd64?  
> >
> > my clang reports on an Intel CPU:
> >
> > #define __amd64 1
> > #define __amd64__ 1
> > #define __x86_64 1
> > #define __x86_64__ 1
> >
> > as defined.
> >
> > It reports
> >
> > #define __aarch64__ 1
> >
> > on an 64 bit ARM CPU.
> >  
> 
> 'man 7 arch' will tell you these things:

better late than never.

I still trust a compiler more than the documentation.

Erich



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