[PATCH] D63360: hwasan: Use bits [3..11) of the ring buffer entry address as the base stack tag.

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis added inline comments.


================
Comment at: compiler-rt/test/hwasan/TestCases/random-align-right.c:30
 // CHECK1: accessing p[20]
+// CHECK1: accessing p[20]
 // CHECK1-NEXT: HWAddressSanitizer: tag-mismatch
----------------
why did you copy this line?


================
Comment at: compiler-rt/test/hwasan/TestCases/stack-history-length.c:20
+  // Bump the tag number so that OOB() doesn't end up with tag 0.
+  FUNC();
+
----------------
I don't understand this. How does a single additional call to FUNC help guarantee that property?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63360/new/

https://reviews.llvm.org/D63360