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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - gcda writer is not big-endian safe" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24294&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=GiQDPO_RGjFn3ZYMmxYeGoexXqQmqtCcQb4IG1d8lVY&s=pEeJGh7rFY9tUiHW1d8970dc-E391Th5JCDKyOb9LFI&e=">24294</a>
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<th>Summary</th>
<td>gcda writer is not big-endian safe
</td>
</tr>
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<th>Product</th>
<td>compiler-rt
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>FreeBSD
</td>
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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
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<th>Component</th>
<td>compiler-rt
</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>chmeeedalf@gmail.com
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>GCDAProfiling.c writes out magic numbers as little-endian byte strings, but
reads them back as native-endian integers. For example, (r241824) line 371
has:
val = read_32bit_value();
While line 398 has:
write_bytes("\0\0\xa1\1", 4);
When reading on a big-endian platform, this would read back as 0x0000a101,
which would obviously fail the check on line 375.</pre>
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