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MdeModulePkg/EbcDxe AARCH64: clean up comment style in ASM file 

Change to consistent // style comments. Also, remove bogus global
definitions for external functions, and move the real exports to
the top of the file.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Feng Tian <feng.tian@intel.com>
This commit is contained in:
Ard Biesheuvel 2016-08-17 16:08:21 +02:00
parent b8922094f6
commit 72b0eaa026
1 changed files with 50 additions and 57 deletions
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107
MdeModulePkg/Universal/EbcDxe/AArch64/EbcLowLevel.S
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@ -1,40 +1,35 @@
#/** @file
#
# This code provides low level routines that support the Virtual Machine
# for option ROMs.
#
# Copyright (c) 2015, The Linux Foundation. All rights reserved.
# Copyright (c) 2007 - 2014, 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.
#
#**/
///** @file
//
// This code provides low level routines that support the Virtual Machine
// for option ROMs.
//
// Copyright (c) 2015, The Linux Foundation. All rights reserved.
// Copyright (c) 2007 - 2014, 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.
//
//**/
#---------------------------------------------------------------------------
# Equate files needed.
#---------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(EbcLLCALLEXNative)
ASM_GLOBAL ASM_PFX(EbcLLEbcInterpret)
ASM_GLOBAL ASM_PFX(EbcLLExecuteEbcImageEntryPoint)
ASM_GLOBAL ASM_PFX(CopyMem);
ASM_GLOBAL ASM_PFX(EbcInterpret);
ASM_GLOBAL ASM_PFX(ExecuteEbcImageEntryPoint);
#****************************************************************************
# EbcLLCALLEX
#
# This function is called to execute an EBC CALLEX instruction.
# This instruction requires that we thunk out to external native
# code. For AArch64, we copy the VM stack into the main stack and then pop
# the first 8 arguments off according to the AArch64 Procedure Call Standard
# On return, we restore the stack pointer to its original location.
#
#****************************************************************************
# UINTN EbcLLCALLEXNative(UINTN FuncAddr, UINTN NewStackPointer, VOID *FramePtr)
ASM_GLOBAL ASM_PFX(EbcLLCALLEXNative);
//****************************************************************************
// EbcLLCALLEX
//
// This function is called to execute an EBC CALLEX instruction.
// This instruction requires that we thunk out to external native
// code. For AArch64, we copy the VM stack into the main stack and then pop
// the first 8 arguments off according to the AArch64 Procedure Call Standard
// On return, we restore the stack pointer to its original location.
//
//****************************************************************************
// UINTN EbcLLCALLEXNative(UINTN FuncAddr, UINTN NewStackPointer, VOID *FramePtr)
ASM_PFX(EbcLLCALLEXNative):
stp x19, x20, [sp, #-16]!
stp x29, x30, [sp, #-16]!
@ -61,16 +56,15 @@ ASM_PFX(EbcLLCALLEXNative):
ret
#****************************************************************************
# EbcLLEbcInterpret
#
# This function is called by the thunk code to handle an Native to EBC call
# This can handle up to 16 arguments (1-8 on in x0-x7, 9-16 are on the stack)
# x9 contains the Entry point that will be the first argument when
# EBCInterpret is called.
#
#****************************************************************************
ASM_GLOBAL ASM_PFX(EbcLLEbcInterpret);
//****************************************************************************
// EbcLLEbcInterpret
//
// This function is called by the thunk code to handle an Native to EBC call
// This can handle up to 16 arguments (1-8 on in x0-x7, 9-16 are on the stack)
// x9 contains the Entry point that will be the first argument when
// EBCInterpret is called.
//
//****************************************************************************
ASM_PFX(EbcLLEbcInterpret):
stp x29, x30, [sp, #-16]!
@ -105,7 +99,7 @@ ASM_PFX(EbcLLEbcInterpret):
mov x1, x0
mov x0, x9
# call C-code
// call C-code
bl ASM_PFX(EbcInterpret)
add sp, sp, #80
@ -113,23 +107,22 @@ ASM_PFX(EbcLLEbcInterpret):
ret
#****************************************************************************
# EbcLLExecuteEbcImageEntryPoint
#
# This function is called by the thunk code to handle the image entry point
# x9 contains the Entry point that will be the first argument when
# ExecuteEbcImageEntryPoint is called.
#
#****************************************************************************
ASM_GLOBAL ASM_PFX(EbcLLExecuteEbcImageEntryPoint);
//****************************************************************************
// EbcLLExecuteEbcImageEntryPoint
//
// This function is called by the thunk code to handle the image entry point
// x9 contains the Entry point that will be the first argument when
// ExecuteEbcImageEntryPoint is called.
//
//****************************************************************************
ASM_PFX(EbcLLExecuteEbcImageEntryPoint):
stp x29, x30, [sp, #-16]!
# build new paramater calling convention
// build new parameter calling convention
mov x2, x1
mov x1, x0
mov x0, x9
# call C-code
// call C-code
bl ASM_PFX(ExecuteEbcImageEntryPoint)
ldp x29, x30, [sp], #16
ret