From 41a3986384af6b010de102169315a977a1c7f5d4 Mon Sep 17 00:00:00 2001
From: tinysec <root@tinysec.net>
Date: Thu, 9 Jul 2026 00:12:24 +0800
Subject: [PATCH] feat: add Architecture.RegisterCallingConvention (Python
 parity)

The C# binding declared BNRegisterCallingConvention but exposed no
managed wrapper, so plugin authors defining custom architectures could
not register a calling convention. Mirror Python
Architecture.register_calling_convention (architecture.py:2593) with a
direct pass-through on Architecture.
---
 Handle/BNArchitecture.cs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Handle/BNArchitecture.cs b/Handle/BNArchitecture.cs
index a2edd16..cd3dcbd 100644
--- a/Handle/BNArchitecture.cs
+++ b/Handle/BNArchitecture.cs
@@ -1080,6 +1080,22 @@ LowLevelILFunction il
 		    );
 	    }
 
+	    /// <summary>
+	    /// Registers a new calling convention with this architecture, mirroring Python
+	    /// <c>Architecture.register_calling_convention</c> (architecture.py:2593). A calling
+	    /// convention must be registered here before it can be assigned as the
+	    /// default/cdecl/stdcall/fastcall convention. Intended for custom-architecture plugin
+	    /// authors.
+	    /// </summary>
+	    /// <param name="callingConvention">The CallingConvention to register.</param>
+	    public void RegisterCallingConvention(CallingConvention callingConvention)
+	    {
+		    NativeMethods.BNRegisterCallingConvention(
+			    this.handle ,
+			    callingConvention.DangerousGetHandle()
+		    );
+	    }
+
 	    /// <summary>
 	    /// Gets the cdecl calling convention for this architecture.
 	    /// </summary>