1 files changed, 0 insertions, 52 deletions
diff --git a/MdePkg/Library/BaseLib/X64/SwitchStack.S b/MdePkg/Library/BaseLib/X64/SwitchStack.S
deleted file mode 100644
index 5ce2612a7b..0000000000
--- a/MdePkg/Library/BaseLib/X64/SwitchStack.S
+++ /dev/null
@@ -1,52 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
-# This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution.  The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php.
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-#   SwitchStack.S
-#
-# Abstract:
-#
-#------------------------------------------------------------------------------
-
-
-#------------------------------------------------------------------------------
-# Routine Description:
-#
-#   Routine for switching stacks with 2 parameters
-#
-# Arguments:
-#
-#   (rcx) EntryPoint    - Entry point with new stack.
-#   (rdx) Context1      - Parameter1 for entry point.
-#   (r8)  Context2      - Parameter2 for entry point.
-#   (r9)  NewStack      - The pointer to new stack.
-#
-# Returns:
-#
-#   None
-#
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(InternalSwitchStack)
-ASM_PFX(InternalSwitchStack):
-    pushq   %rbp
-    movq    %rsp, %rbp
-
-    mov     %rcx, %rax  // Shift registers for new call
-    mov     %rdx, %rcx
-    mov     %r8, %rdx
-    #
-    # Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack,
-    # in case the callee wishes to spill them.
-    #
-    lea     -0x20(%r9), %rsp
-    pushq   $0        // stop gdb stack unwind
-    jmp     *%rax     // call EntryPoint ()