Dart VM on FreeBSD

[DartBot]

This issue was originally filed by efes...@gmail.com

---

Is there posibility that Dart VM will support BSD (like Go)?

[kasperl]

Added Area-VM, Triaged labels.

[iposva-google]

Removed Priority-Medium label.
Added Priority-Unassigned label.

[DartBot]

This comment was originally written by beatg...@gmail.com

---

I got this error on a gclient runhooks:

________ running '/usr/local/bin/python dart/tools/gyp_dart.py runtime' in '/usr/home/otto'
gyp: Undefined variable dart_target_os in dart/runtime/dart-runtime.gyp while trying to load dart/runtime/dart-runtime.gyp
Error: Command /usr/local/bin/python dart/tools/gyp_dart.py runtime returned non-zero exit status 1 in /usr/home/otto

It looks like it's not set up to run on FreeBSD, but I don't know where to make changes (I don't know anything about gyp).

I searched for dart_target_os, and I found tools/gyp/configurations.gypi, which seemed like the place to add something in (configurations.gypi.patch, it's not very interesting). When I did this, I got the following error:

________ running '/usr/local/bin/python dart/tools/gyp_dart.py runtime' in '/usr/home/otto'
Traceback (most recent call last):
  File "dart/third_party/gyp/gyp_main.py", line 18, in <module>
    sys.exit(gyp.script_main())
  File "dart/third_party/gyp/pylib/gyp/init.py", line 547, in script_main
    return main(sys.argv[1:])
  File "dart/third_party/gyp/pylib/gyp/init.py", line 540, in main
    return gyp_main(args)
  File "dart/third_party/gyp/pylib/gyp/init.py", line 516, in gyp_main
    options.circular_check)
  File "dart/third_party/gyp/pylib/gyp/init.py", line 131, in Load
    params['parallel'])
  File "dart/third_party/gyp/pylib/gyp/input.py", line 2714, in Load
    SetUpConfigurations(target, target_dict)
  File "dart/third_party/gyp/pylib/gyp/input.py", line 2175, in SetUpConfigurations
    target_dict, configuration, [])
  File "dart/third_party/gyp/pylib/gyp/input.py", line 2116, in MergeConfigWithInheritance
    target_dict, parent, visited + [configuration])
  File "dart/third_party/gyp/pylib/gyp/input.py", line 2116, in MergeConfigWithInheritance
    target_dict, parent, visited + [configuration])
  File "dart/third_party/gyp/pylib/gyp/input.py", line 2111, in MergeConfigWithInheritance
    configuration_dict = target_dict['configurations'][configuration]
KeyError: 'Dart_FreeBSD_Base'
Error: Command /usr/local/bin/python dart/tools/gyp_dart.py runtime returned non-zero exit status 1 in /usr/home/otto

It looks like the string Dart_FreeBSD_Base is dynamically generated from dart_target_os, but I wasn't sure where to define it. I feel like I'm going down a deep rabbit hole that won't lead me to the solution. I'm sure it's easy, I just don't know where to look.

I don't know anything about gclient or gyp, and I didn't see any documentation in the repo to lead me in the right direction (except the README, which tells me I should be looking in tools/).

If I get time, I'll try to wrap my head around gyp and see if I can figure out where to go from here. Issue #6929 would make this much easier (something like chromium's source tarballs that Arch Linux uses).

---

Attachment:
configurations.gypi.patch (673 Bytes)

[iposva-google]

Regarding the patch in comment 4:

You might have a much easier time if you did say "[ 'OS=="freebsd"', { 'dart_target_os': 'Linux', } ]," as this will pickup all of the relevant build configurations for a make/gcc based build.

[DartBot]

This comment was originally written by beatgam...@gmail.com

---

Making that change I get further. "glient sync", "gclient runhooks" and "tools/build.py -mrelease -ax64 runtime" (instructions from Issue #6929). Both returned 0 exit status, but there's no "out" directory in the dart directory.

All I get is: gmake: Nothing to be done for runtime

For reference, I'm using "glient config http://dart.google.com/svn/branches/1.1/deps/standalone.deps" (I figure that will be the easiest to get working). My build env is FreeBSD 9.2 with minimal software installed (e.g. no bash so I'm running gclient.py directly).

[DartBot]

This comment was originally written by ef...@gmail.com

---

I gave up when building NSPR. Original Mozilla version has files for building with FreeBSD but in patched Dart branch are files somewhat missing. Even with proper files i am unable to compile it :(

[DartBot]

This comment was originally written by sms3...@gmail.com

---

Has there been any update on this?

[DartBot]

This comment was originally written by ets3rodama...@gmail.com

---

http://ugetdm.com/blog/3-stable/68-uget-for-bsd-is-now-available

Does that perhaps help?

[DartBot]

This comment was originally written by @mulander

---

I started work on a port for OpenBSD (https://github.com/mulander/openbsd-dart).

Hacky at this point but I want to get at least the runtime built to see how the whole thing will feel. I'll start adding proper platform support for OpenBSD as soon as I get a single binary going (work limited to weekend so don't expect fast progress).

People wanting to help out are of course welcome.

[DartBot]

This comment was originally written by sms3h...@gmail.com

---

Thanks for working on this! I'll try to jump in and help a little bit at
some point but the schedule is full!

[DartBot]

This comment was originally written by @mulander

---

Hi all, short status update on the porting effort.

The build got pretty far, as in most of dart runtime builds without issues with small modifications to use kqueue/pthreads in some places - so far I 'patched' 36 files where most of them is 'use the mac one instead of linux' or 'use the android one instead of linux' with really rare cases when I actually had to edit the code. I obviously took the recommended "[ 'OS=="openbsd"', { 'dart_target_os': 'Linux', } ]," from comment #­5.

Unfortunately I'm also having huge issues with building NSPR similarly to what was reported in comment #­7 over an year ago. I'm afraid that without guidance/help I won't be able to move far with the port.

Regardless, it would be nice if the project had a porting guide for new platforms. I did not find any documentation that would tell me how the project build system works & how it should be configured. I don't know why the third party libs are bundled with the distribution & how to untangle them to use the system wide installed & already ported libraries. I assume the project has reasons for that but this leads to duplicate effort in software porting on the platform side.

The current state is of course uploaded to the github account linked in comment #­10.

[sgjesse]

We are working on moving the TLS support from Mozilla NSS to Boring SSL. If the NSS library and its dependencies are providing issues, then maybe just stubbing it out for now, and not support TLS until the change to use Boring SSL has landed.

[DartBot]

This comment was originally written by @mulander

---

Hi sgjesse@, thanks for the response.

I will give stubbing out a shot over the next weekend, good to know that you are moving to Boring SSL.

Two little requests, please make it possible to pick up system wide Boring SSL during the build. Additionally I would be interested in using LibreSSL for dart on OpenBSD. Considering that both projects are an OpenSSL fork it should not be that hard if the build is not hard wired to Boring SSL.

Regards,
Adam