[llvm-branch-commits] [asan] Change error to note when poison record is not found (PR #195669)

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llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Vitaly Buka (vitalybuka)

<details>
<summary>Changes</summary>

When `CheckPoisonRecords` fails to find a record, it's often due to the
history buffer being too small rather than a functional error in the
logic.


---
Full diff: https://github.com/llvm/llvm-project/pull/195669.diff


1 Files Affected:

- (modified) compiler-rt/lib/asan/asan_errors.cpp (+1-1) 


``````````diff
diff --git a/compiler-rt/lib/asan/asan_errors.cpp b/compiler-rt/lib/asan/asan_errors.cpp
index 0b84ea6f6967a..0432cb46529ed 100644
--- a/compiler-rt/lib/asan/asan_errors.cpp
+++ b/compiler-rt/lib/asan/asan_errors.cpp
@@ -682,7 +682,7 @@ static void CheckPoisonRecords(uptr addr) {
     if (poison_stack.size > 0)
       poison_stack.Print();
   } else {
-    Printf("ERROR: no matching poison tracking record found.\n");
+    Printf("NOTE: no matching poison tracking record found.\n");
     Printf("Try a larger value for ASAN_OPTIONS=poison_history_size=<size>.\n");
   }
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/195669