On Wed, Dec 20, 2017 at 10:40 AM, David Buck <david.b...@oracle.com> wrote: > Hi Ted! > >> BTW, I'm sure there's a good reason for this, but why doesn't >> OpenJDK/Oracle offer pre-built versions of hsdis for a variety of common >> platforms? Is there a licensing issue? > > Yes, binutils is GPL 3, and OpenJDK is under GPL 2. We are very aware of > this as a pain point and are looking to improve things in the future. It is > simply a matter of bandwidth at the moment. >
Yes, that's exactly the issue. And it was communicated to the OpenJDK Governing Board more than two and a half years ago (see my mail "Providing 'hsdis' binaries not possible because of GPLv2/GPLv3 license clash" from May 2015 [1]) and since then reiterated several times. I'll plan to raise this issue again at the public GB meeting at FOSDEM in February next year - however with very little hope that it will be resolved :( Regards, Volker [1] http://mail.openjdk.java.net/pipermail/discuss/2015-May/003754.html > Cheers, > -Buck > > > On 2017/12/20 18:35, Ted Neward wrote: >> >> Sorry--I was cribbing from here >> (https://www.chrisnewland.com/building-hsdis-on-linux-amd64-on-debian-369) >> and it references using 2.23, which memory transposed to 2.32, I think. >> >> I'm not sure what was going wrong (well, I can tell you what the errors >> were, but I dunno what was causing them), but I want to work from something >> we know works (a la your instructions) and hopefully that'll catch any >> environmental differences that might be causing any problems. :-) >> >> The README was a little confusing when I was going through it; I'll try to >> go back over it tomorrow and try to identify which parts left me confused, >> in case it's something that needs correcting. (I hold the possibility that >> I'm just an idiot as a very strong possibility.) >> >> BTW, I'm sure there's a good reason for this, but why doesn't >> OpenJDK/Oracle offer pre-built versions of hsdis for a variety of common >> platforms? Is there a licensing issue? >> >> I'll give this a spin tomorrow and fire back with any issues/questions. >> Thanks! >> >> Ted Neward >> Author, Speaker, Mentor >> http://www.newardassociates.com >> t: @tedneward | m: (425) 647-4526 >> >> On 12/20/17, 12:54 AM, "David Buck" <david.b...@oracle.com> wrote: >> >> Hi Ted! >> > the version of binutils (I was using 2.32) >> Not sure what that is. Latest binutils is 2.29.1. >> > I was doing make BINUTILS=<binutils_dir> ARCH=amd64 >> That should also work, but I'd still keep things simple and just >> specify >> the "all64" make target. As always, whatever is documented in the >> README >> file should probably be your default choice. >> > Do I need to clone the hs repo on its own? Or can I use the >> bits >> > buried inside of jdk/src/... >> No need to clone jdk/hs. I was just cloning it out of habit. All >> you >> need is the contents of the hsdir directory (from either repository). >> There is not much active work done on hsdis, so in practice you are >> unlikely to notice a difference between the jdk and hs repositories. >> Cheers, >> -Buck >> On 2017/12/20 17:31, Ted Neward wrote: >> > I will give this a shot tomorrow; I can see two things already that >> I did that was different, the version of binutils (I was using 2.32) and the >> make command (I was doing make BINUTILS=<binutils_dir> ARCH=amd64 from the >> hsdis directory itself inside the jdk source. Do I need to clone the hs repo >> on its own? Or can I use the bits buried inside of jdk/src/... (sorry I >> can't remember the full path off the top of my head)? >> > >> > Once we confirm that this works, I'll work with you on >> Windows--fortunately I know Windows better than Ubuntu, so hopefully that >> helps. :-) (And let's be really clear, I *really* don't know what's going on >> with the texinfo and all that stuff.) >> > >> > Ted Neward >> > Author, Speaker, Mentor >> > http://www.newardassociates.com >> > t: @tedneward | m: (425) 647-4526 >> > >> > On 12/20/17, 12:13 AM, "David Buck" <david.b...@oracle.com> wrote: >> > >> > Hi Ted! >> > >> > No blog to point you to, but building on non-Windows platforms >> should be >> > pretty painless these days. >> > >> > > then tried again with the JDK source >> > >> > Yes, that is the one to use. The makefile had a number of >> issues that I >> > fixed recently but have not (yet) backported to 8u-dev. >> > >> > I was able to build on an Ubuntu 16.4 (AMD64) using the >> following >> > commands (output omitted): >> > >> > === >> > hg clone http://hg.openjdk.java.net/jdk/hs >> > wget http://ftp.gnu.org/gnu/binutils/binutils-2.28.1.tar.gz >> > tar xf binutils-2.28.1.tar.gz >> > cd hs/src/utils/hsdis/ >> > make all64 BINUTILS=../../../../binutils-2.28.1 >> > === >> > >> > The above steps resulted in the plugin being generated here: >> > >> > hs/src/utils/hsdis/build/linux-amd64/hsdis-amd64.so >> > >> > Note the version of binutils I used, there is some issue with >> 2.29 and >> > later versions that prevents the build from succeeding. I hope >> to >> > investigate if I get some extra bandwidth next year. Also, >> avoiding >> > "cross compiling" is probably a good idea. If you want to >> build a 32-bit >> > plugin, it is probably simpler to just build it in a 32-bit >> environment. >> > >> > Let us know once you get this working. macOS is pretty >> similar. Then we >> > can take a crack at a Windows build if you are up for it. >> > >> > Cheers, >> > -Buck >> > >> > On 2017/12/20 7:13, Ted Neward wrote: >> > > Hey, all. Been trying for a day and a half now to build the >> hsdis disassembly plugin in jdk/src/utils/hsdis, with no luck. (Tried first >> off of the JDK8u source, then tried again with the JDK source, no love >> either way.) >> > > >> > > >> > > >> > > Is there a definitive page (wiki, blog, etc) that describes >> how to build hsdis on different platforms? I’m trying right now in an Ubuntu >> 16 VM, but would also want to build on Windows and/or macOS. All the Web is >> showing me is posts from a few years ago that don’t seem to address some of >> the issues I’m running into. >> > > >> > > >> > > >> > > I can copy build output if it’ll help, but wanted to go do >> my homework before doing that. :-) >> > > >> > > >> > > >> > > Ted Neward >> > > >> > > Author, Speaker, Mentor >> > > >> > > http://www.newardassociates.com >> > > >> > > t: @tedneward | m: (425) 647-4526 >> > > >> > >> > >> > >> >> >
