From 7b8ee049a151204997eecf587c69acc2f67c8405 Mon Sep 17 00:00:00 2001
From: Sergey Aseev <serg046@outlook.com>
Date: Thu, 18 Mar 2021 01:59:38 +0300
Subject: [PATCH] Issues #710: Ability to load debug symbols from MemoryStream
 (#735)

---
 Mono.Cecil.Cil/PortablePdb.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Mono.Cecil.Cil/PortablePdb.cs b/Mono.Cecil.Cil/PortablePdb.cs
index b5515ba91..744c274bb 100644
--- a/Mono.Cecil.Cil/PortablePdb.cs
+++ b/Mono.Cecil.Cil/PortablePdb.cs
@@ -301,7 +301,11 @@ public ImageDebugHeader GetDebugHeader ()
 			// PDB Age
 			buffer.WriteUInt32 (1);
 			// PDB Path
-			buffer.WriteBytes (System.Text.Encoding.UTF8.GetBytes (writer.BaseStream.GetFileName ()));
+			var fileName = writer.BaseStream.GetFileName ();
+			if (string.IsNullOrEmpty (fileName)) {
+				fileName = module.Assembly.Name.Name + ".pdb";
+			}
+			buffer.WriteBytes (System.Text.Encoding.UTF8.GetBytes (fileName));
 			buffer.WriteByte (0);
 
 			var data = new byte [buffer.length];