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      <base href="https://bugs.llvm.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - /SUBSYSTEM not taken into account for automatic /ENTRY detection"
   href="https://bugs.llvm.org/show_bug.cgi?id=36523">36523</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>/SUBSYSTEM not taken into account for automatic /ENTRY detection
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>lld
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </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>COFF
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>alexandre.ganea@ubisoft.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>We have a case where both "main" and "WinMain" are defined in different .libs
being linked in. We also provide /SUBSYSTEM:WINDOWS on the command-line.

As per spec
(<a href="https://docs.microsoft.com/en-us/cpp/build/reference/subsystem-specify-subsystem">https://docs.microsoft.com/en-us/cpp/build/reference/subsystem-specify-subsystem</a>)
specifying /SUBSYSTEM:CONSOLE shall select "main" or "wmain"; and specifying
/SUBSYSTEM:WINDOWS shall select "WinMain" or "wWinMain", whichever is present.

Given the list in lld\COFF\Driver.cpp, LinkerDriver::findDefaultEntry(),
Config->Subsystem is not taken account, which leads to "main" being selected.
For this exact same case, link.exe selects "WinMain", which follows the
/SUBSYSTEM selector.</pre>
        </div>
      </p>


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