From 7d646099976950f0ae2ade3a66c80f755a39f3ac Mon Sep 17 00:00:00 2001
From: Jeremy Koritzinsky <jekoritz@microsoft.com>
Date: Wed, 27 Aug 2025 14:15:26 -0700
Subject: [PATCH] Preserve lock id members

---
 .../src/ILLink/ILLink.Descriptors.Shared.xml                 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libraries/System.Private.CoreLib/src/ILLink/ILLink.Descriptors.Shared.xml b/src/libraries/System.Private.CoreLib/src/ILLink/ILLink.Descriptors.Shared.xml
index 42d6b943d539f8..b5b861f5101282 100644
--- a/src/libraries/System.Private.CoreLib/src/ILLink/ILLink.Descriptors.Shared.xml
+++ b/src/libraries/System.Private.CoreLib/src/ILLink/ILLink.Descriptors.Shared.xml
@@ -67,6 +67,11 @@
       <method name="GetActiveTaskFromId" />
     </type>
 
+    <type fullname="System.Threading.ThreadBlockingInfo">
+      <property name="LockOwnerManagedThreadId" />
+      <property name="LockOwnerOSThreadId" />
+    </type>
+
      <!-- methods used by hot reload -->
     <type fullname="System.Reflection.Metadata.MetadataUpdater">
       <method name="GetCapabilities" />