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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Process::GetMallocUsage() may be wrong for non-glibc"
href="http://llvm.org/bugs/show_bug.cgi?id=20925">20925</a>
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<th>Summary</th>
<td>Process::GetMallocUsage() may be wrong for non-glibc
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Support Libraries
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>daniel@zuster.org
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>The KLEE code has this comment around its function to get memory usage:
--
struct mallinfo mi = ::mallinfo();
+ // The malloc implementation in glibc (pmalloc2)
+ // does not include mmap()'ed memory in mi.uordblks
+ // but other implementations (e.g. tcmalloc) do.
+#if defined(__GLIBC__)
return mi.uordblks + mi.hblkhd;
+#else
+ return mi.uordblks;
+#endif
--
but LLVM's Process::GetMallocUsage() does not have that logic. Someone should
check this...</pre>
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</p>
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