Date: Sun, 28 Feb 2010 16:59:40 -0600 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: src-committers@FreeBSD.org, delphij@gmail.com, peterjeremy@acm.org, svn-src-all@FreeBSD.org, attilio@FreeBSD.org, kostikbel@gmail.com, svn-src-head@FreeBSD.org, emaste@FreeBSD.org Subject: Re: svn commit: r204309 - in head/sys: amd64/amd64 amd64/isa conf i386/bios i386/cpufreq i386/i386 i386/isa i386/xen isa modules/bios/smbios modules/bios/vpd modules/cpufreq pc98/pc98 x86 x86/bios x86/... Message-ID: <4B8AF55C.6040103@freebsd.org> In-Reply-To: <20100228.145300.29649867912530.imp@bsdimp.com> References: <20100226132854.GA25722@sandvine.com> <3bbf2fe11002260557y484cf13bq76f7507c07ed3ebc@mail.gmail.com> <20100228195041.GA68446@server.vk2pj.dyndns.org> <20100228.145300.29649867912530.imp@bsdimp.com>
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M. Warner Losh wrote: > In message: <20100228195041.GA68446@server.vk2pj.dyndns.org> > Peter Jeremy <peterjeremy@acm.org> writes: > : On 2010-Feb-26 14:57:36 +0100, Attilio Rao <attilio@freebsd.org> wrote: > : >For the future, however, probabilly we would need to do something like > : >pc98 already does wrt i386 (i386/include/ pc98/include/ amd64/include/ > : >just have files wrappers to the generic one under x86/include/ when > : >necessary). > : > : Not that something like this is also critical for getting i386/amd64 > : cross compilation to work - one of the blocking issues is that the > : correct machine/ includes are not available in cross-compilatio mode. > > Huh? > > I cross build all the time, and the machine/ includes are always > right, with or without this patch. Maybe you could explain what you > mean here... > > The issue is that old code has > > #include <i386/isa.h> > > or whatever in it, and we need to have an i386/isa.h that's just > #include <x86/isa.h> > > Warner > I'm guessing what was meant is that one benefit of a merged tree (like we will have with powerpc) is that you can do cc -m32 on a 64-bit host to get a 32-bit binary, which is less than trivial now. -Nathan
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