<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/147976>147976</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [SystemZ] Support global stack protector canary
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          stefan-sf-ibm
      </td>
    </tr>
</table>

<pre>
    So far only a per thread canary in the TLS block is supported on SystemZ.  [This patch for GCC](https://gcc.gnu.org/pipermail/gcc-patches/2025-July/689232.html) adds support for a global canary, too.  For this the new option `-mstack-protector-guard={global,tls}` is added which defaults to tls. As described in the patch, also option `-mstack-protector-guard-record` is added. More details are in the commit message.

\cc @uweigand @dominik-steenken 
</pre>
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