From ed1e7222d634ddc4cc55f7c5bdca308af37696c7 Mon Sep 17 00:00:00 2001 From: Jordan Justen Date: Mon, 30 May 2016 18:52:00 -0700 Subject: [PATCH] MdePkg BaseLib: Convert X64/SwitchStack.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/SwitchStack.asm to X64/SwitchStack.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen --- MdePkg/Library/BaseLib/BaseLib.inf | 2 + MdePkg/Library/BaseLib/X64/SwitchStack.nasm | 51 +++++++++++++++++++++ 2 files changed, 53 insertions(+) create mode 100644 MdePkg/Library/BaseLib/X64/SwitchStack.nasm diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index e3408f28e3..84c493e67e 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -437,6 +437,7 @@ X64/LongJump.asm X64/SetJump.nasm X64/SetJump.asm + X64/SwitchStack.nasm X64/SwitchStack.asm X64/EnableCache.asm X64/DisableCache.asm @@ -607,6 +608,7 @@ X86DisablePaging32.c X64/GccInline.c | GCC X64/Thunk16.S | XCODE + X64/SwitchStack.nasm| GCC X64/SwitchStack.S | GCC X64/SetJump.nasm| GCC X64/SetJump.S | GCC diff --git a/MdePkg/Library/BaseLib/X64/SwitchStack.nasm b/MdePkg/Library/BaseLib/X64/SwitchStack.nasm new file mode 100644 index 0000000000..b6fd7e0992 --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/SwitchStack.nasm @@ -0,0 +1,51 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
+; 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.Asm +; +; Abstract: +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; 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 +; +;------------------------------------------------------------------------------ +global ASM_PFX(InternalSwitchStack) +ASM_PFX(InternalSwitchStack): + mov rax, rcx + mov rcx, rdx + mov rdx, r8 + ; + ; Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack, + ; in case the callee wishes to spill them. + ; + lea rsp, [r9 - 0x20] + call rax + -- 2.39.2