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* gcc-wwwdocs branch master updated. 05c170a452a9aecf36a719515a7e64f7999305e4
@ 2020-12-22 14:53 Matthew Malcomson
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From: Matthew Malcomson @ 2020-12-22 14:53 UTC (permalink / raw)
To: gcc-cvs-wwwdocs
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commit 05c170a452a9aecf36a719515a7e64f7999305e4
Author: Matthew Malcomson <matthew.malcomson@arm.com>
Date: Tue Dec 22 13:24:15 2020 +0000
wwwdocs: Document new Hardware-assisted AddressSanitizer
gcc-11/changes: Document new Hardware-assisted AddressSanitizer.
diff --git a/htdocs/gcc-11/changes.html b/htdocs/gcc-11/changes.html
index 1a9e72c1..d04b377d 100644
--- a/htdocs/gcc-11/changes.html
+++ b/htdocs/gcc-11/changes.html
@@ -116,6 +116,25 @@ a work-in-progress.</p>
option (which defaults to 8 spaces per tab stop).
</p>
</li>
+ <li>
+ <p>
+ Introduce <a href="https://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html">
+ Hardware-assisted AddressSanitizer</a> support. This sanitizer currently
+ only works for the AArch64 target. It helps debug address problems
+ similarly to
+ <a href="https://github.com/google/sanitizers/wiki/AddressSanitizer">
+ AddressSanitizer</a> but is based on partial hardware assistance and
+ provides probabilistic protection to use less RAM at run time.
+ <a href="https://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html">
+ Hardware-assisted AddressSanitizer</a> is not production-ready for user
+ space, and is provided mainly for use compiling the Linux Kernel.
+ </p>
+ To use this sanitizer the command line arguments are:
+ <ul>
+ <li><code>-fsanitize=hwaddress</code> to instrument userspace code.</li>
+ <li><code>-fsanitize=kernel-hwaddress</code> to instrument kernel code.</li>
+ </ul>
+ </li>
</ul>
<!-- .................................................................. -->
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-11/changes.html | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
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2020-12-22 14:53 gcc-wwwdocs branch master updated. 05c170a452a9aecf36a719515a7e64f7999305e4 Matthew Malcomson
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