<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>210532</bug_id>
          
          <creation_ts>2020-04-14 22:03:52 -0700</creation_ts>
          <short_desc>isNullFunctionPointer() can fail for symbols not explicitly marked as weakly linked.</short_desc>
          <delta_ts>2020-04-15 09:09:51 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>New Bugs</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Jer Noble">jer.noble</reporter>
          <assigned_to name="Jer Noble">jer.noble</assigned_to>
          <cc>mitz</cc>
    
    <cc>sam</cc>
    
    <cc>thorton</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1641678</commentid>
    <comment_count>0</comment_count>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2020-04-14 22:03:52 -0700</bug_when>
    <thetext>isNullFunctionPointer() can fail for symbols not explicitly marked as weakly linked.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1641680</commentid>
    <comment_count>1</comment_count>
      <attachid>396499</attachid>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2020-04-14 22:11:47 -0700</bug_when>
    <thetext>Created attachment 396499
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1641808</commentid>
    <comment_count>2</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2020-04-15 08:32:25 -0700</bug_when>
    <thetext>Committed r260129: &lt;https://trac.webkit.org/changeset/260129&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 396499.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1641809</commentid>
    <comment_count>3</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2020-04-15 08:33:14 -0700</bug_when>
    <thetext>&lt;rdar://problem/61829150&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1641814</commentid>
    <comment_count>4</comment_count>
    <who name="Sam Weinig">sam</who>
    <bug_when>2020-04-15 08:45:19 -0700</bug_when>
    <thetext>I don&apos;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)</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>396499</attachid>
            <date>2020-04-14 22:11:47 -0700</date>
            <delta_ts>2020-04-15 08:32:26 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-210532-20200414221147.patch</filename>
            <type>text/plain</type>
            <size>3788</size>
            <attacher name="Jer Noble">jer.noble</attacher>
            
              <data encoding="base64">U3VidmVyc2lvbiBSZXZpc2lvbjogMjYwMDU3CmRpZmYgLS1naXQgYS9Tb3VyY2UvVGhpcmRQYXJ0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</data>

          </attachment>
      

    </bug>

</bugzilla>