[PATCH] D108029: [clang][Codegen] Introduce the no_sanitizer_instrumentation attribute

Aaron Ballman via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Aug 13 07:20:41 PDT 2021


aaron.ballman requested changes to this revision.
aaron.ballman added inline comments.
This revision now requires changes to proceed.


================
Comment at: clang/include/clang/Basic/AttrDocs.td:2601-2602
+
+This is not the same as ``__attribute__((no_sanitize(...)))``, which depending
+on the tool may still insert instrumentation to prevent false positive reports.
+  }];
----------------
Has there been agreement that this isn't actually a bug? My understanding of `no_sanitize` is that it disables sanitizer support for a function or global. The documentation for that attribute says:
```
Use the ``no_sanitize`` attribute on a function or a global variable
declaration to specify that a particular instrumentation or set of
instrumentations should not be applied.
```
That sure reads like "do not instrument this at all" to me, and makes me think we don't need a second attribute that says "no, really, I mean it this time."


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D108029/new/

https://reviews.llvm.org/D108029



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