From 5d1a9b09f32181f978a834b286914ce466be688e Mon Sep 17 00:00:00 2001
From: yangguo <yangguo@chromium.org>
Date: Wed, 11 Feb 2015 06:03:10 -0800
Subject: [PATCH] Whitelist serialized objects wrt MSAN.

R=jochen@chromium.org
BUG=chromium:457459
LOG=N

Review URL: https://codereview.chromium.org/919613002

Cr-Commit-Position: refs/heads/master@{#26578}
---
 src/serialize.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/serialize.cc b/src/serialize.cc
index 887276f9cf..b7277b5da5 100644
--- a/src/serialize.cc
+++ b/src/serialize.cc
@@ -2120,6 +2120,10 @@ int Serializer::ObjectSerializer::OutputRawData(
     }
 
     const char* description = code_object_ ? "Code" : "Byte";
+#ifdef MEMORY_SANITIZER
+    // Object sizes are usually rounded up with uninitialized padding space.
+    MSAN_MEMORY_IS_INITIALIZED(object_start + base, bytes_to_output);
+#endif  // MEMORY_SANITIZER
     sink_->PutRaw(object_start + base, bytes_to_output, description);
     if (code_object_) delete[] object_start;
   }