Date: Sun, 13 Jan 2013 19:59:01 -0800 From: Peter Wemm <peter@wemm.org> To: "Isaac (.ike) Levy" <ike@blackskyresearch.net> Cc: Adrian Chadd <adrian@freebsd.org>, Nathan Whitehorn <nwhitehorn@freebsd.org>, freebsd-arch@freebsd.org Subject: Re: how long to keep support for gcc on x86? Message-ID: <CAGE5yCpaGV0Jg9_XwfJ0bmn2zbcNy1R4ADGDOnj4YPugGr=DXg@mail.gmail.com> In-Reply-To: <1358132522-7259997.45478983.fr0E31thR008892@rs149.luxsci.com> References: <20130112233147.GK1410@funkthat.com> <20130113014242.GA61609@troutmask.apl.washington.edu> <CAJ-VmomrSFXcZg%2BKj6C2ARhpmjB9hxZATYJyRZB7-eRrcBLprg@mail.gmail.com> <20130113053725.GL1410@funkthat.com> <CAJ-VmomGKayr-1VucfwgodhXEHrXxx8r=9crHZJf74iVKZyTmQ@mail.gmail.com> <20130113202952.GO1410@funkthat.com> <CAGE5yCpB8dHLn0TaW=r0Ov39owOQVi=X5FFw%2BuQ=qZ9zYi5anA@mail.gmail.com> <20130113224800.GS1410@funkthat.com> <50F33B02.6040303@freebsd.org> <CAJ-Vmo=wz0Z5q27QDaxT7jskBoO9vG_BNwRNA6xizhmSmU-aEA@mail.gmail.com> <CAGE5yCoFgC02qYfgAmA6Apd7Q3CrOOGnPAVT-Jbk13iw_Cmw2Q@mail.gmail.com> <1358132522-7259997.45478983.fr0E31thR008892@rs149.luxsci.com>
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On Sun, Jan 13, 2013 at 7:01 PM, Isaac (.ike) Levy <ike@blackskyresearch.net> wrote: > On Jan 13, 2013, at 7:58 PM, Peter Wemm wrote: >> On Sun, Jan 13, 2013 at 3:08 PM, Adrian Chadd <adrian@freebsd.org> wrote= : >>> ... ? >>> >>> As an embedded platform, I'd expect that people will want to support >>> any feature which dramatically boosts performance whilst reducing CPU. >>> >>> Also, if Intel decide to keep trying to push low power x86 for mobile >>> applications, rather than ARM, x86 may just make a resurgence in >>> places you once thought were servers. >>> >>> 32 bit x86 isn't legacy and won't be for a long time to come. >> >> Our buildworld environment and embedded $everything isn't well known >> for being embedded friendly. > > IMHO, I believe the buildworld environment is quite friendly, but I don't= have anything except FreeBSD and OpenBSD to compare it to, > >> I'd wager that if somebody was trying to >> use an i386 kernel in an embedded device where every last thing >> counted, they'd be using an external toolchain targeted for their >> platform and some very selective cross-building. > > I'll take your wager- I'm one of those guys, lots of embedded FreeBSD on = tiny hardware- but I haven't been using any external toolchain or compiler. > > Your wager may still be rational, your case is plausable, but since 2004,= I (and dozens of colleagues/friends/hackers) happily been compiling FreeBS= D, using zero add-on tools. (I've used a lot of Soekris 4801 and 5501, and = ALIX alix2d3 embedded boards). Typical Kernel and world take approximately= 18+ hours to build on a 4801, depending on the kernel conf. > > Beyond Soekris and PcEngines, there is a glut of relevant industrial sing= le-board/embedded/funky hardware that is also 32 bit x86- some pretty amazi= ng gear, at varying levels of cost. Sure, but how many of these have the new AES-NI stuff? And even if they did, the default 10.x compiler would support it. --=20 Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI6FJV bitcoin:188ZjyYLFJiEheQZw4UtU27e2FMLmuRBUE
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