[webkit-gtk] [jsc-dev] Enable WebAssembly on Linux based ports (GTK and JSCOnly)

[Andrea Giammarchi]

Chiming in, it'd be awesome to be able to test WASM on 2.16 behind a flag,
I'm targeting mostly SBC including Raspberry Pi 0 where WebKitGTK+ already
works like a charm (enabling WebGL and with HW accelerated layers) but I
can't compare performance against WASM and building from scratch targeting
Pi Zero ain't the easiest thing to do.

Thanks for eventual consideration.

On Wed, Mar 1, 2017 at 4:57 PM, Yusuke SUZUKI <utatane.tea at gmail.com> wrote:

> On Thu, Mar 2, 2017 at 1:36 AM, Saam Barati <sbarati at apple.com> wrote:
>
>>
>> On Mar 1, 2017, at 7:46 AM, Michael Catanzaro <mcatanzaro at igalia.com>
>> wrote:
>>
>> On Wed, 2017-03-01 at 15:44 +0100, Carlos Garcia Campos wrote:
>>
>> We have recently branched for 2.16 so it's a perfect moment to enable
>>
>> it in trunk with very little risk.
>>
>>
>> Is Apple planning to enable it within the next six months? If so, now
>> is indeed the ideal time to enable it for WebKitGTK+.
>>
>>
>> What do you mean by enable it? It's been on by default on the Mac port
>> for a while now and has been in the various STP releases.
>>
>> I think it's a good idea to enable it on other ports too. Note that Keith
>> is currently working on a patch to make loads faster in Wasm. It may
>> require some OS specific handling to run well on Linux:
>> https://bugs.webkit.org/show_bug.cgi?id=162693
>>
>>
> Awesome! I think enabling WASM on Linux after landing Keith's faster
> memory access patch (by using SEGV signal handling instead of bound
> checking) is good.
> Once that patch is implemented and landed, we can start implementing
> platform-specific part of that (extracting instruction pointer from
> mcontext_t and signal handling part should be implemented for Linux).
> I think that should be easy (since retrieving instruction pointer from
> mcontext_t is already once implemented for sampling profiler. Thus, we can
> share / re-implement the same thing for that).
>
>
>>
>> If not, then I'd prefer to wait until it's going to be enabled in the
>> macOS port.
>>
>> Michael
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>> jsc-dev at lists.webkit.org
>> https://lists.webkit.org/mailman/listinfo/jsc-dev
>>
>>
>
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