<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/135707>135707</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [LLDB] s390x, incorrect byte order issues with `Cast` and `p/x $pc`
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          patryk4815
      </td>
    </tr>
</table>

<pre>
    Version: `lldb 20.1.1`

Reproduction:
```console
qemu-s390x -g 1234 ./hello
```

Other terminal:
```console
(lldb) file ./hello
(lldb) gdb-remote 0:1234
(lldb) b main
Breakpoint 1: where = hello`main, address = 0x0000000001002228
(lldb) c
Process 3281862 resuming
Process 3281862 stopped
* thread #1, stop reason = breakpoint 1.1
    frame #0: 0x0000000001002228 hello`main
hello`main:
    0x1002228 <+0>:  ear    %r1, %a0
    0x100222c <+4>:  sllg   %r4, %r1, 32
    0x1002232 <+10>: stmg %r6, %r15, 48(%r15)
    0x1002238 <+16>: ear    %r4, %a1
(lldb) register read pc
    pswa = 0x0000000001002228  hello`main
(lldb) p/x $pc
(unsigned long) 0x2822000100000000
(lldb)
```
The bug occurs for all registers, not just the `$pc`

We found out this bug, during implementing s390x support for pwndbg.
```console
In [20]: value = pwndbg.regs.by_name('r14')

In [21]: hex(int(value))
Out[21]: '0x7fb84143554a'

In [22]: hex(int(value.cast(pwndbg.aglib.typeinfo.unsigned)))
Out[22]: '0x4a554341b87f0000'

In [23]: pwndbg.aglib.typeinfo.unsigned.inner
Out[23]: unsigned long long
```
Basically internal lldb `Cast` function mess-up byte-ordering somehow.


</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJx8ld-O6yYQxp-G3IxiAf6bi1xkdxup0pFOVVXtZYXNxOYcDC7gTfL2FdjZTVa7x4qUEOb7fTPAGOG96g3inpRPpHzZiDkM1u0nEdz1Z9GwctNaed3_jc4ra0h-AFJRrWULnGYsY6SihB4IPfyJk7Ny7sISFv-s6PLprPFWI6GH_3Cctz7f0Qtse2A8LyAj_Dig1vZesSC_hwEdBHSjMkJ_CSW8iQkRvoOT0vhIfJ_rZbt1ONqAQEl-iOaPAS2MQhlCD08Oxc_JKhOAxYrPAzoEkr_Agq1oCuTPIKR06H2aoxd6exilnPPmEd8RevjD2S7G57xhTcXBoZ9HZfpPpnyw04QyMQ4QBodCAuE5i75xEhwKb03ybu8yzhihBwCAkxMjRkks95P0Hquhh4dhWuxIoZdbOMmfCX-iJP8t8gCFi_OEly7lRHgp6AdRt4qKm8hr3a-iYhUt6pw_SnO-StnN0IexT_HVm7CMv4qG8OY23H2g3LJm1Uq5y_qWgGCPG-WwVz6gg7TkU7ciJ38WX2w0fFzKO9pE-PEChBcJRHgzm9RxErQ1fYygF95wvtCW54HwoS_-GhDauQfbdbPzcLIOhNZvSftYlLEBfsw-QBgw9uvifmurfxBOdjYS7BwjlI-8KJOzU6YHNU4aRzQhDpZm9fM0WReS23Q2su2zz3vxdwOkfOKUlC9xtV-FnpfOWVUOe5-113-NGDFtW-1YQXi91vkGYCtgwAvhjTKB8CbBYmCK_T6H-0DCa3qpT21TsCIvy0JE6D2Rf0XMOuHjYM1Q9Fq1WbhOqMzJZrfdWn3vrfm9dSHKssgL1jb1KW3hB_t8Df61S6aMQfducVM9nJnl4DyeiifhVSe0voIyAZ0RGtJLmlT0OZZXUTjNJr2cYUTvt_ME7TXg1jqJade9HXGw52zJeiP3udzlO7HBPauLoqprtttthn3HadecSipbVjdV1bayZVUrsapLKemObtSeU17SgpWU5jnbZYLnhaBl03W0y1nTkILiKJTOtH4dM-v6jfJ-xj3Ly5rWGy1a1D5dR5wbPEOaJWm1N24fRdt27j0pqFY--HdMUEGne-zbt5d4ly1nNx5sZTrrHHYh1Qyp5oXr4azCcL9Mwsg4vG_bim5mp_dDCJOPL0Z-JPzYqzDMbdbZkfBjzGH92k7O_sAuEH5cHAg_rqW97vn_AQAA__8kWh7z">