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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Custom assert function is not registered as 'noreturn'"
href="https://llvm.org/bugs/show_bug.cgi?id=23487">23487</a>
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<th>Summary</th>
<td>Custom assert function is not registered as 'noreturn'
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.5
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</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
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>kremenek@apple.com
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<th>Reporter</th>
<td>evanbenn@gmail.com
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14312" name="attach_14312" title="scan-build gcc -c clang-test-3.c finds a bug with this code.">attachment 14312</a> <a href="attachment.cgi?id=14312&action=edit" title="scan-build gcc -c clang-test-3.c finds a bug with this code.">[details]</a></span>
scan-build gcc -c clang-test-3.c finds a bug with this code.
I have a custom assert function that checks a value, prints some information,
and calls abort. (it does not call assert).
I believe this is due to a function using a variable argument list. If I mark
the variable argument function __attribute__((__noreturn__)) then the 'assert'
is correctly identified. If I mark the abort function (called by the variable
argument function) with __attribute__((__noreturn__)) then the 'assert' is not
identified, and clang finds a bug with NULL pointer dereference.
I expect: scan-build to find no NULL pointer dereference
I get: scan-build does not recognise the abort(), and finds a NULL pointer
dereference.
I am on Ubuntu clang-3.5</pre>
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