From 8217ed7acb71bfa574e0a29e69b902a0c539c814 Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Fri, 29 Sep 2017 14:47:52 -0500
Subject: [PATCH] Kernel/Thread: Added a helper function to get a thread's
 command buffer VAddr.

---
 src/core/hle/kernel/thread.cpp | 6 ++++++
 src/core/hle/kernel/thread.h   | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 11f7d2127..6ebc8c151 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -534,6 +534,12 @@ s32 Thread::GetWaitObjectIndex(WaitObject* object) const {
     return static_cast<s32>(std::distance(match, wait_objects.rend()) - 1);
 }
 
+VAddr Thread::GetCommandBufferAddress() const {
+    // Offset from the start of TLS at which the IPC command buffer begins.
+    static constexpr int CommandHeaderOffset = 0x80;
+    return GetTLSAddress() + CommandHeaderOffset;
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
 void ThreadingInit() {
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index f02e1d43a..520ac22c2 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -159,6 +159,12 @@ public:
         return tls_address;
     }
 
+    /*
+     * Returns the address of the current thread's command buffer, located in the TLS.
+     * @returns VAddr of the thread's command buffer.
+     */
+    VAddr GetCommandBufferAddress() const;
+
     /**
      * Returns whether this thread is waiting for all the objects in
      * its wait list to become ready, as a result of a WaitSynchronizationN call