Bug 210532

Summary: isNullFunctionPointer() can fail for symbols not explicitly marked as weakly linked.
Product: WebKit Reporter: Jer Noble <jer.noble>
Component: New BugsAssignee: Jer Noble <jer.noble>
Status: RESOLVED FIXED    
Severity: Normal CC: mitz, sam, thorton, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Description Jer Noble 2020-04-14 22:03:52 PDT 
isNullFunctionPointer() can fail for symbols not explicitly marked as weakly linked.
Comment 1 Jer Noble 2020-04-14 22:11:47 PDT 
Created attachment 396499 [details]
Patch
Comment 2 EWS 2020-04-15 08:32:25 PDT 
Committed r260129: <https://trac.webkit.org/changeset/260129>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 396499 [details].
Comment 3 Radar WebKit Bug Importer 2020-04-15 08:33:14 PDT 
<rdar://problem/61829150>
Comment 4 Sam Weinig 2020-04-15 08:45:19 PDT 
I don't think this is the right approach for this. If we are going to change libWebRTC, I think we should add a non-function symbol to use to check weak-linkage.  And we should remove isNullFunctionPointer() or fix it it, but not leave it half working (see https://bugs.webkit.org/show_bug.cgi?id=208873)