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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [aarch64] implement __attribute__(("branch-protection=none")) fn attribute"
href="https://bugs.llvm.org/show_bug.cgi?id=42095">42095</a>
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<th>Summary</th>
<td>[aarch64] implement __attribute__(("branch-protection=none")) fn attribute
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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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>LLVM Codegen
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>ndesaulniers@google.com
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<th>CC</th>
<td>george.burgess.iv@gmail.com, keescook@chromium.org, kristof.beyls@arm.com, llozano@chromium.org, llvm-bugs@lists.llvm.org, manojgupta@google.com, neeilans@live.com, oliver.stannard@arm.com, peter.smith@linaro.org, richard-llvm@metafoo.co.uk, srhines@google.com
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<pre>via:
<a href="https://lore.kernel.org/linux-arm-kernel/201905300851.4A68705B0@keescook/T/#mab342863a3525c41af0d19c647c3c2b30907fb50">https://lore.kernel.org/linux-arm-kernel/201905300851.4A68705B0@keescook/T/#mab342863a3525c41af0d19c647c3c2b30907fb50</a>
and: <a href="https://github.com/ClangBuiltLinux/linux/issues/501">https://github.com/ClangBuiltLinux/linux/issues/501</a>
It seems like ARMv8.3 Pointer Authentication instructions improve function
return address protection for the arm64 Linux kernel, but need to be able to
annotate functions as non-protected.</pre>
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