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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Need a way to disable CFG on individual functions"
href="https://bugs.llvm.org/show_bug.cgi?id=44096">44096</a>
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<th>Summary</th>
<td>Need a way to disable CFG on individual functions
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<th>Product</th>
<td>new-bugs
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>dmajor@mozilla.com
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, rnk@google.com
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<p>
<div>
<pre>For certain functions, CFG should be disabled, for example a typical 32-bit
detour interceptor that calls into the second instruction of its hooked
function.
I believe the MSVC-ism for this is __declspec(guard(nocf)) but that isn't
implemented in clang-cl. I also tried __attribute__((nocf_check)) but got this
warning:
warning: 'nocf_check' attribute ignored; use -fcf-protection to enable the
attribute [-Wignored-attributes]
I could add -fcf-protection as the message suggests, but I'm not sure that's
the right solution.</pre>
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