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      <base href="https://llvm.org/bugs/" />
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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 --- - [stack unwinding][arm] &quot;push {sp}&quot; confuses the instruction emulation based unwinding on arm" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23879&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=DDUMf06MYELAe1Nlv7KChiwJLLHbYha4jtK_AOiWqwQ&m=O6zK1xx1Y2CeIoqENoiFd52mHLP70-PI5x39_WHew0Q&s=sVXwZm7vopRuHyIl7XL3fpLav_ZuNEsTS48FRWpjgA0&e=">23879</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[stack unwinding][arm] "push {sp}" confuses the instruction emulation based unwinding on arm
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>lldb
          </td>
        </tr>

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

        <tr>
          <th>Assignee</th>
          <td>lldb-dev@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>tberghammer@google.com
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Unwinding from the following functions doesn't work on Android 5.1 ARM at some
address:
__aeabi_ldivmod, __aeabi_uldivmod

The issue caused by a "push {sp}" instruction because the instruction emulator
can't keep track of the value of the sp of the previous frame when it is
[CFA+#imm]+#imm</pre>
        </div>
      </p>
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