<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Add a weak/strong flag to RuntimeDyld's symbol table."
   href="http://llvm.org/bugs/show_bug.cgi?id=22653">22653</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Add a weak/strong flag to RuntimeDyld's symbol table.
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Generic Execution Engine Support
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>lhames@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>RuntimeDyld's symbol table doesn't currently distinguish between weak and
strong symbols. All symbols are currently treated as strong, leading to
spurious symbol clashes.

We should add a 'weak' flag to RuntimeDyld's symbol table. The symbol
visibility support introduced in r226341 provides a template for how to
approach this, but rather than add more methods (along the lines of
getExportedSymbolLoadAddress), we should change RuntimeDyld's getSymbolAddress
methods to return a RTDyldSymbol object that provides access to both the 'weak'
flag and visibility.</pre>
        </div>
      </p>
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