Re: Libcxx update

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Re: Libcxx update

> > This looks to be very interesting prospect. Could you write a wiki or > blog on how to update libcxx (and libc) ? > This could help in some of the optimizations(unneeded code getting added > to the generated asm.js binary) when nothing else work. > On a seprate note, I was

Re: Libcxx update

It should be an llvm-nm listing dump. You can recreate it by cd $EMSCRIPTEN python embuilder.py build libcxx llvm-nm $HOME/.emscripten_cache/asmjs/libcxx.a 2017-07-18 0:25 GMT+03:00 Dirk Vanden Boer : > First issue: > emscripten/system/lib/libcxx contains a symbols file

Re: Libcxx update

I'll focus on the upgrade, I'm way too unfamiliar with the code base to make proper decisions about how to split off libcxx. I've looked into upgrading libcxx. I found the build_libcxx function in tools/system_libs.py, I suppose this gets called when invoking ./embuilder.py build libcxx. So

Re: Libcxx update

I think we can put this in a separate repo using the ports system, the same mechanism that binaryen is. Tthe binaryen code is in tools/ports/binaryen.py , pretty simple. I think the one complication we ran into last time we discussed this was that libc++ and other system libraries have headers

Re: Libcxx update

We try to minimize them but I expect there are a few local changes (grep for EMSCRIPTEN in system/lib/libcxx). And I'd love to move to an out-of-tree repo, although currently we don't have the mechanism in place for that, and I'd hesitate to make someone who just wants to update libcxx invent one.

Re: Libcxx update

If someone has time to look into this, I'd be happy to help with guidance. Mostly it's just updating the in-tree code and running the test suite. (However, we should move it to an out-of-tree repo, next update might be a good time for that. That shouldn't be much work either.) On Thu, Jul 13,

Re: Libcxx update

There is no specific update cadence to migrate to a newer version. You might be able to take libcxx and compile it as an external library with Emscripten and link to that one instead. 2017-07-14 0:23 GMT+03:00 Dirk Vanden Boer : > I'm currently experimenting with emscripten