On Wed, Apr 12, 2017 at 7:07 PM, Nick Apperley <napper...@gmail.com> wrote:
> Greetings. I am a Kotlin <https://kotlinlang.org/> community member that > is working on adding BBB support for Kotlin Native > <https://github.com/JetBrains/kotlin-native> and need some help with the > following: > > > - Selecting a suitable toolchain that will work on Ubuntu, Linux Mint, > and possibly Debian (hosts) for cross compilation to the BBB > > This may depend on the Linux image you're using one the given Beaglebone. For kernels 3.8.x, the beaglebone used Wheezy, and we're pretty much stuck with gcc 4.6.3. For Debian Jessie, it seems 4.9.2 is used. Currently. For the sake of sanity, and ease of use / setup. You may wish to stick with Ubuntu. As at least for Ubuntu 14.04 lts, there were a plethora of cross compiler packages available. gcc 4.9.x may be post 14.04, but you should check. In any case, once you have the right version of Ubuntu, it's a simple matter of using APT to install the correct toolchain for the Beaglebone. ABI used is of course armhf. Also known as "hard float". > > - Setting up a sysroot (libraries, config files to include etc) > > Refer to your nearest gcc reference book. > > - What C libraries to use with the toolchain (if applicable) > > For what ? > > - Standard C library to use for the embedded side (for use in a > *"Blinky"* Kotlin Native sample program on the BBB side) > > STD Linux API calls on the right file will get the job done. However, /dev/mem + mmap() can also be used, but is really out of the scope of the novice / beginner. > > - Hosting for the Kotlin Native BBB toolchain and sysroot (stored as > *tar.gz* files) > > github ? > > Now for a bit of background Kotlin Native uses the Kotlin programming > language, and LLVM <http://llvm.org/> for developing native programs > (executables) that work on multiple platforms (Linux x86-64, Mac OSX, ARM > Cortex A SBC's etc) without a virtual machine. Currently there is automatic > reference counting for automatic memory management (no GC implemented), and > manual memory management can also be used. Interoperability > <https://github.com/JetBrains/kotlin-native/blob/master/INTEROP.md> is > available for C (not C++) libraries, which has a partial reliance on > libffi <https://sourceware.org/libffi/>. There are some Kotlin Native > samples <https://github.com/JetBrains/kotlin-native/tree/master/samples> > available with the most sophisticated one being a Tetris > <https://github.com/JetBrains/kotlin-native/tree/master/samples/tetris> > game which uses the SDL <https://www.libsdl.org/> library. > > > The Kotlin programming language was created by JetBrains > <https://www.jetbrains.com/> (the company that sells tools like PyCharm > <https://www.jetbrains.com/pycharm> and IntelliJ > <https://www.jetbrains.com/idea>). Andrey Breslav is the language founder > who named Kotlin after Kotlin Island > <https://en.wikipedia.org/wiki/Kotlin_Island> near Saint Petersburg, > Russia. Kotlin is designed to be a programmatic (industrial), Object > Orientated (is multi paradigm) programming language, which is fully > inter-operable with Java (Kotlin JVM only), and is open source > <https://github.com/JetBrains/kotlin> (Apache 2). Average time for learning > Kotlin <http://kotlinlang.org/docs/kotlin-docs.pdf> is around 3 days, > although some people can pickup Kotlin in a few hours. Main areas where > Kotlin is used are Android, and server side (especially micro web services) > development. You might be interested in listening to some Talking Kotlin > <http://talkingkotlin.com/> podcasts which cover other areas where Kotlin > has been used. > > > Would be highly appreciated (also grateful) by the Kotlin Native team if > the Beaglebone Foundation could send a BBB to JetBrains in order to ensure > that Kotlin Native properly supports the BBB. Important to note that Kotlin > is split into three platforms: > Forgive me for saying so. But don't you think you should be purchasing your own boards if *you* want to do something for the community ? Especially if you plan on profiting from the result. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORrN%2Bo3AdAPpYWPXXiGhWDsq7xU6vmeJcdcEnNqQboudgQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
