[webkit-qt] CSSDefaultStyleSheets::defaultStyle

[Konstantin Tokarev]

24.11.2017, 15:18, "Andrew Webster" <awebster at arcx.com>:
>>  24.11.2017, 05:41, "Andrew Webster" <awebster at arcx.com>:
>>>>>   I ran into an ASSERT in ElementRuleCollector::collectMatchingRules (ASSERT(matchRequest.ruleSet)). When ignored, it seg faults.
>>>>>
>>>>>   The root cause is that ElementRuleCollector::matchUARules and CSSDefaultStyleSheets::initDefaultStyle disagree about the location of CSSDefaultStyleSheets::defaultStyle.
>>>>>   Although CSSDefaultStyleSheets::initDefaultStyle has properly created CSSDefaultStyleSheets::defaultStyle, ElementRuleCollector::matchUARules looks in a different location and ends up with a nullptr.
>>>>>
>>>>>   Adding WEBCORE_EXPORT to the declaration of CSSDefaultStyleSheets::defaultStyle fixes this. Does anyone have any thoughts on why this might be?
>>>>>
>>>>>   GCC 6.2.1 for arm32v7.
>>>>
>>>>  Are you using static build of QtWebKit by chance?
>>>
>>>  Qt5WebKit.so and Qt5WebKitWidgets.so
>>
>>  Is value of &CSSDefaultStyleSheets::defaultStyle different in ElementRuleCollector::matchUARules and CSSDefaultStyleSheets::initDefaultStyle?
>
> That's right. But once I add the EXPORT, the address is the same.

Sounds like a linker bug.

>
>>>>>   Thanks,
>>>>>
>>>>>   Andrew
>>>>   --
>>>>   Regards,
>>>>   Konstantin
>>
>>  --
>>  Regards,
>>  Konstantin

-- 
Regards,
Konstantin