Hi Adam,
This looks super interesting!
I have some questions:
- Does your JSC port enable all of JSC’s optimization features, like the FTL
JIT and concurrent GC?
- Is it a goal to enable basically everything we enable, long term?
- Is this 32-bit, 64-bit, or both?
- Is this mainly for ARM, x86, some other CPU, or lots of CPUs?
- Do you plan to do significant work on JSC, or do you mainly want to just stay
up to date with what we’re doing?
More thoughts inline:
> On Jun 26, 2018, at 2:00 PM, Adam Barth <aba...@webkit.org> wrote:
>
> As part of developing Fuchsia [1] (a new open-source operating
> system), we ported JavaScriptCore to run on Fuchsia [2]. At the time,
> our intent was to use this code within the Fuchsia source tree but not
> to make it available for developers writing applications for Fuchsia.
> However, recently, we've gotten a number of requests from customers
> who would like to use JavaScriptCore in their Fuchsia applications.
>
> I'd like your advice about the best way to maintain JavaScriptCore
> support for Fuchsia. Here are some possibilities I can imagine, but
> we're open to other possibilities as well:
>
> 1. Maintain a fork of JavaScriptCore somewhere on googlesource.com
> that supports Fuchsia and instruct customers to obtain the Fuchsia
> port of JavaScriptCore from googlesource.com.
I’d be OK with this.
>
> 2. Maintain a branch of JavaScriptCore in svn.webkit.org that supports
> Fuchsia.
In my opinion, SVN branches are not significantly better than (1), and in many
ways they are worse. I wouldn’t advocate for this.
>
> 3. Maintain support for JavaScriptCore in the mainline of svn.webkit.org.
I think that I’d be OK with this, too. This seems better than (1) if you want
to stay up-to-date.
-Filip
>
> For reference, here's the patch we applied to WTF and JavaScriptCore
> to enable Fuchsia support:
>
> https://gist.github.com/abarth/b4fc909d83be5133cd7a5af209757e96
>
> This patch is based on webkit@206446, but we'd obviously rebase the
> patch onto top-of-tree before contributing it.
>
> I'm happy to answer any questions you might have that would help you
> provide the best advice. If you would prefer to communicate off-list,
> I'm happy to do that as well.
>
> Thanks in advance,
> Adam
>
> [1] https://fuchsia.googlesource.com/docs/+/master/README.md
> [2] Actually, if you look at
> https://fuchsia.googlesource.com/third_party/webkit, you'll see that
> we've ported WebCore as well, but this email concerns only
> JavaScriptCore.
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