[webkit-qt] CSSDefaultStyleSheets::defaultStyle

Konstantin Tokarev annulen at yandex.ru
Thu Nov 23 15:29:19 PST 2017

> 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?

> Thanks,
> Andrew

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