[webkit-dev] Exporting symbols (was Re: Common build system (was Re: WebKit Wishes))

Dirk Pranke dpranke at chromium.org
Thu Jan 31 15:15:31 PST 2013


On Thu, Jan 31, 2013 at 3:12 PM, Alexey Proskuryakov <ap at webkit.org> wrote:
>
> 31.01.2013, в 14:57, Dirk Pranke <dpranke at chromium.org> написал(а):
>
>>>>>> One thing to keep an eye on with WEBCORE_EXPORT is that it can increase
>>>>>> the number of exports for each port, because it would export symbols that
>>>>>> are only needed for other ports.
>>>>>
>>>>
>>>> I'm not sure I understand the concern here. Is the idea that some
>>>> ports might build WebCore as a DLL (and need exports) and others
>>>> wouldn't? Or the idea that the API that is needed to be exported might
>>>> vary from port to port in such a way that too many symbols for WebCore
>>>> might be exported on some ports?
>>>
>>> The latter.
>>>
>>> I suspect that it's somewhat less of an issue for JavaScriptCore, because its exports are mostly used from cross-platform code.
>>>
>>
>> I see. Some concrete examples would be helpful here (to me, at least).
>> What components and ports are we talking about, and what sorts of
>> symbols?
>
> I don't have concrete examples, and I don't know how big an effect on performance increasing the number of exports would have. It's something to keep an eye on, not a reason to avoid trying.
>

I'm not parsing your reply properly -- avoid trying what? A common
EXPORT macro that is set as appropriate by each port?

-- Dirk


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