Bug 82371 – WebKit fails to load a staged framework when soft linking

• Component: WebKit Misc.
• Status: RESOLVED FIXED

[Timothy Hatcher]

The Web Inspector framework is failing to load when the framework does not exist at the system install path.

[Timothy Hatcher]

<rdar://problem/11125989>

[Timothy Hatcher]

Created attachment 134118 [details]
Proposed Change

[WebKit Review Bot]

Attachment 134118 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1
Source/WebCore/platform/mac/SoftLinking.h:58:  Missing space before {  [whitespace/braces] [5]
Total errors found: 1 in 7 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[WebKit Review Bot]

Comment on attachment 134118 [details]
Proposed Change

Clearing flags on attachment: 134118

Committed r112312: <http://trac.webkit.org/changeset/112312>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.

[Alexey Proskuryakov]

Comment on attachment 134118 [details]
Proposed Change

View in context: https://bugs.webkit.org/attachment.cgi?id=134118&action=review

Is it correct to try unstaged location first, and then staged location? It seems like it should be the opposite order.

> Source/WebCore/platform/mac/SoftLinking.h:55
> -#define SOFT_LINK_PRIVATE_FRAMEWORK_OPTIONAL(framework) \
> +#define SOFT_LINK_STAGED_FRAMEWORK_OPTIONAL(framework, unstagedLocation) \

The new name doesn't appear to correctly describe the behavior - the macro loads either installed or staged framework.

Also, shouldn't all soft link macros support staged frameworks, making the clarification redundant?

[Mark Rowe (bdash)]

(In reply to comment #6)
> (From update of attachment 134118 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=134118&action=review
> 
> Is it correct to try unstaged location first, and then staged location? It seems like it should be the opposite order.

It's counter-intuitive, but looking in the normal location first is the right behavior as dlopen will still respect any dyld environment variables that influence the search path.

> > Source/WebCore/platform/mac/SoftLinking.h:55
> > -#define SOFT_LINK_PRIVATE_FRAMEWORK_OPTIONAL(framework) \
> > +#define SOFT_LINK_STAGED_FRAMEWORK_OPTIONAL(framework, unstagedLocation) \
> 
> The new name doesn't appear to correctly describe the behavior - the macro loads either installed or staged framework.
> 
> Also, shouldn't all soft link macros support staged frameworks, making the clarification redundant?

Given the limited application of staged frameworks there wouldn't be much benefit to doing this.