Reduce assembly code in alloc helpers

- Use extern "C" names for methods called from asm helper to avoid dealing with name mangling for ports
- Move hooking up of the PInvoke tunnel to C++
- Change arm assembly code to follow same naming pattern as x86 and arm64

[tfs-changeset: 1609408]

1 files changed, 19 insertions, 0 deletions

diff --git a/src/Native/Runtime/thread.inl b/src/Native/Runtime/thread.inl
new file mode 100644
index 000000000..ec7cf53c8
--- /dev/null
+++ b/src/Native/Runtime/thread.inl
@@ -0,0 +1,19 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+#ifndef DACCESS_COMPILE
+inline void Thread::SetCurrentThreadPInvokeTunnelForGcAlloc(void * pTransitionFrame)
+{
+    ASSERT(ThreadStore::GetCurrentThread() == this);
+    ASSERT(Thread::IsCurrentThreadInCooperativeMode());
+    m_pHackPInvokeTunnel = pTransitionFrame;
+}
+
+inline void Thread::SetupHackPInvokeTunnel()
+{
+    ASSERT(ThreadStore::GetCurrentThread() == this);
+    ASSERT(!Thread::IsCurrentThreadInCooperativeMode());
+    m_pHackPInvokeTunnel = m_pTransitionFrame;
+}
+#endif // DACCESS_COMPILE