On Apr 14, 2011, at 09:32, Konstantinos Margaritis wrote: > On 14 April 2011 01:39, Jeremiah C. Foster <[email protected]> > wrote: >> Hello! > > Hi, > >> The subject says it all. I'm looking to create a package or two and >> I'd like to use the fancy hardfloat toolchain thingy to make my >> packages all shiny. I've been reading >> http://wiki.debian.org/ArmHardFloatPort with rapt attentiond and note >> that porting of packages is in progress, I thought I might even be >> able to help out there. > > We'd greatly appreciate all the help! >> >> Can someone point me to a source of documentation to describe any >> required actions on the packagers part to enable hardfloat? > > Well, there is no documentation, but here are a few pointers: > > 1. Is armel included in the Architecture field in control? If so, it's > *very* likely > that the package will just build with armhf added there.
I thought that all I might need to do was change the Arch field in the control file, I'll start there. My plan is to use debootstrap to create a Debian wheezy chroot and build packages inside that. The target I'm building on is a Tegra2 that came with Ubuntu pre-installed and I cannot remove that OS at this point so I figure adding a Debian root file system should be sufficient for my needs. > 2. If no armel/armhf is included in there, it's possible that the > package will still > build with some fixes. For that reason, I usually check the corresponding > package on Launchpad (for Ubuntu), as they have already done some good > porting work for their armel port. Ah, good to know. > 3. For packages that fail on armhf but succeed on armel, it's highly likely > that > this is due to some thumb2 bug. Ubuntu is great help there, many packages > have already been fixed on ubuntu-armel for thumb2 problems and most of > the time it's just a case of backporting the thumb2 patches (as was the case > with libmad and others), and now I'm working on backporting fixes for > coq, blcr, openmsx. Dave Martin from ARM has done a great job in finding and > fixing those. Cool. Maybe I'll build on the Ubuntu machine directly too then. > 4. There are some minor compiler problems right now -due to a triplet change- > but there are working versions of 4.4,4.5,4.6 and recent binutils already. > glibc > has a problem building however (on many arches iirc) and I haven't tried the > experimental version yet. Most packages should be fine. > 5. Forget any java package right now, gcj is broken for armhf, we're waiting > for > a fixed libffi in order to rebuild gcj with it -and hope that it > works. Unfortunately, > java is a build-dep for many packages, incl subversion, db4.x, db5.x, so if > your package needs a recent version of those, you'll just have to wait. Java? Blech. =) > 6. there are some fixes pending with some important packages, namely openmpi > should be fixed for both armel/armhf (again the fixes backported from Ubuntu), > which means that openmpi build-dep should be enabled for some other > packages too (in particular I'm waiting for hdf5, which just got fixed > for armhf). > 7. Finally, there are some really tricky packages like compilers (fpc, > ghc, clisp, > plt-scheme, gnat, sbcl, and llvm-related packages) which would love some > attention :) Hrm. While I would love to win some Debian/Ubuntu/Linaro cred here, I'm somewhat skeptical of my lisp-fu. The other packages, like llvm stuff look sufficiently hairy to scare me away. Sadly I know nothing about Ada either. :( > In short, check > http://buildd.debian-ports.org/status/architecture.php?a=armhf&suite=unstable > and > > http://wiki.debian.org/ArmHardFloatTodo > > and see what fails, if there is an existing bug report ( if not, help > us file them :). Great! I'll see if there is some low hanging fruit. :-) > For now, ignore the java packages, they all fail. If you're feeling > lucky, try one > of the compiler things (ghc6 should be fun to port, already tried but > got segfaults > on the cross building system :) > > Anyway, thanks for the interest and of course help is welcome on all of those! Thank you Konstantinos, I appreciate the pointers and that you took the time to help me out. Cheers, Jeremiah -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
