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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - memory read assertion failure with -f a -s 32"
href="http://llvm.org/bugs/show_bug.cgi?id=21736">21736</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>memory read assertion failure with -f a -s 32
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>3.2
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</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>mjohnlnl@gmail.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Steps to reproduce:
from the terminal:
1. open a binary;
2. breakpoint set -name main
3. r
4. memory read -f a -s 32 `$rbp` `$rbp + 0x30`
Crashes lldb and reports:
Assertion failed: ("GetMax64 unhandled case!" == NULL), function GetMaxU64,
file /SourceCache/lldb/lldb-320.4.156/source/Core/DataExtractor.cpp, line 692.
Abort trap: 6
memory read -f a -s 32 `$rbp` `$rbp + 0x30`
Assertion failed: ("GetMax64 unhandled case!" == NULL), function GetMaxU64,
file /SourceCache/lldb/lldb-320.4.156/source/Core/DataExtractor.cpp, line 692.
Abort trap: 6
Commentary:
the combination -f a -s 32 is probably nonsensical(?) but changing the value of
the rbp offset to, say, 0x10, returns nothing and does not abort with an
assertion failure.</pre>
</div>
</p>
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