<html>
    <head>
      <base href="https://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 --- - Ptrace interface unable to set byte select watchpoints on arm-linux"
   href="https://llvm.org/bugs/show_bug.cgi?id=26031">26031</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Ptrace interface unable to set byte select watchpoints on arm-linux
          </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>Linux
          </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@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>omair.javaid@linaro.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Following tests fail on arm-linux:

TestWatchLocationWithWatchSet.py
TestStepOverWatchpoint.py

Ptrace interface fails to set read/write watchpoints on single byte variables
which are not word aligned.

Following commands fail, in case of TestStepOverWatchpoint:

watchpoint set variable -w read g_watch_me_write

Following commands fail, in case of TestWatchLocationWithWatchSet:

watchpoint set expression -w write -s 1 -- g_char_ptr + 7


Need to do further investigation on how to make sure we can select individual
bytes while setting watchpoints on arm.</pre>
        </div>
      </p>
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