On Tue, Apr 3, 2012 at 9:08 AM, Kamble, Nitin A <nitin.a.kam...@intel.com> wrote: >> -----Original Message----- >> From: H.J. Lu [mailto:hjl.to...@gmail.com] >> Sent: Tuesday, April 03, 2012 8:35 AM >> To: Helmut Grohne; 667...@bugs.debian.org; Debian Bug Tracking System >> Cc: Kamble, Nitin A >> Subject: Re: Bug#667037: dpkg: please add x32 abi to triplettable >> >> On Tue, Apr 3, 2012 at 7:56 AM, Helmut Grohne <hel...@subdivi.de> >> wrote: >> > Package: dpkg >> > Version: 1.16.2 >> > Severity: wishlist >> > Block: 667023 >> > >> > Dear dpkg maintainers and H.J. Lu, >> > >> > H.J. Lu is pushing the x32 abi into tools. His work is already part >> of >> > binutils 2.22 and gcc-4.7 in Debian sid. The next step to support >> this >> > architecture is bootstrapping it as a Debian port for wheezy+1. In >> > order for this to happen it would be required to add a triplet to >> dpkg now. >> > >> > Debian needs a unique triplet for x32 in order to install multiple >> > versions of libraries at the same time. Libraries are placed in >> > /lib/$triplet (and the /usr equivalent). So i386 and amd64 libraries >> > can be installed at the same time as /lib/i386-linux-gnu and >> > /lib/x86_64-linux-gnu. >> > >> > The bad news is that such a triplet is not yet well documented and >> > maybe not even defined. I was unable to find it. Some discussion >> > already happend on the autoconf mailinglist[1]. But no consensus >> seems >> > to be reached. In theory x86_64-linux-gnu should probably have been >> > called x86_64-linux-gnulp indicating long pointer usage. Then the x32 >> > triplet would be x86_64-linux-gnu. Of course this is not to change. >> > Following the discussion the logical outcome seems to be the >> following proposal. >> > >> > triplettable >> > - Debian triplet: x86_64-linux-gnun32 >> > - Debian arch: x32 >> > >> > However x32 would have to map to x86_64 in the cputable which poses >> > some kind of non-uniqueness. >> > >> > I therefore ask H.J. Lu and the dpkg maintainers to comment on this >> > issue to reach a consensus. >> > >> > Helmut >> > >> > [1] http://lists.gnu.org/archive/html/autoconf/2011-10/msg00001.html >> > >> > >> >> Nitin, can you share what you use for x32 Yocto? >> >> Thanks. >> >> -- >> H.J. > > > We have gone through the decision of selecting a proper triplet for x32 with > Yocto project already. We are using x86_64-linux-gnunx32 as triplet for x32. > This also marks that there is no change in the architecture part of the > triplet, and only OS part of the triplet is changed to denote x32 abi > support. With this we are building thousands of packages for x32. >
Doesn't Yocto use "x86_64-linux-gnux32", not "x86_64-linux-gnunx32"? -- H.J. -- To UNSUBSCRIBE, email to debian-dpkg-bugs-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
