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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Please support the [[gnu::leaf]] attribute"
href="https://bugs.llvm.org/show_bug.cgi?id=41710">41710</a>
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<th>Summary</th>
<td>Please support the [[gnu::leaf]] attribute
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</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>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>rafael@espindo.la
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
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<pre>gcc 9 warn if an alias "specifies less restrictive attribute than its target".
This means that a declaration of an alias to malloc has to look like
extern "C"
[[gnu::alias("malloc")]]
[[gnu::malloc]]
[[gnu::alloc_size(1)]]
[[gnu::leaf]]
void* __libc_malloc(size_t n) throw ();
or gcc will warn.
Of the above attributes, only gnu::leaf is missing from clang.</pre>
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