[PATCH] D102288: [HWASan] Add -fsanitize=lam flag and enable HWASan to use it.

Evgenii Stepanov via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu May 13 12:02:16 PDT 2021


eugenis added inline comments.


================
Comment at: clang/include/clang/Driver/Options.td:4172
+// on x86_64 and is subject to change in the future.  For example, we may want
+// to distinguish between LAM48 and LAM57 at some point.
+def mlam : Flag<["-"], "mlam">, Group<m_x86_Features_Group>;
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Hmm this might be a good argument to go with something else for now.
What would -mlam actually affect, besides hwasan? Significant bits computation?

If we see LAM as future production mode for HWASan, and aliasing - more of a temporary, proof-of-concept thing, then how about -fexperimental-sanitize-hwaddress-aliasing flag?


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D102288/new/

https://reviews.llvm.org/D102288



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