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MdePkg: Remove Old Stack Check Lib Implementation

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Now that the new stack check lib implementation is being used
everywhere, remove the old one.

Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
This commit is contained in:
Oliver Smith-Denny 2024-07-23 16:07:25 -07:00 committed by mergify[bot]
parent f53f029122
commit a9b38305b6
5 changed files with 0 additions and 115 deletions
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50
MdePkg/Library/BaseStackCheckLib/BaseStackCheckGcc.c
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@ -1,50 +0,0 @@
/** @file
Base Stack Check library for GCC/clang.
Use -fstack-protector-all compiler flag to make the compiler insert the
__stack_chk_guard "canary" value into the stack and check the value prior
to exiting the function. If the "canary" is overwritten __stack_chk_fail()
is called. This is GCC specific code.
Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
Copyright (c) 2012, Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Base.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
/// "canary" value that is inserted by the compiler into the stack frame.
VOID *__stack_chk_guard = (VOID *)0x0AFF;
// If ASLR was enabled we could use
// void (*__stack_chk_guard)(void) = __stack_chk_fail;
/**
Error path for compiler generated stack "canary" value check code. If the
stack canary has been overwritten this function gets called on exit of the
function.
**/
VOID
__stack_chk_fail (
VOID
)
{
UINT8 DebugPropertyMask;
DEBUG ((DEBUG_ERROR, "STACK FAULT: Buffer Overflow at 0x%p.\n", RETURN_ADDRESS (0)));
//
// Generate a Breakpoint, DeadLoop, or NOP based on PCD settings even if
// BaseDebugLibNull is in use.
//
DebugPropertyMask = PcdGet8 (PcdDebugPropertyMask);
if ((DebugPropertyMask & DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED) != 0) {
CpuBreakpoint ();
} else if ((DebugPropertyMask & DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED) != 0) {
CpuDeadLoop ();
}
}

39
MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
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@ -1,39 +0,0 @@
## @file
# Stack Check Library
#
# Stack Check Library
#
# Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = BaseStackCheckLib
MODULE_UNI_FILE = BaseStackCheckLib.uni
FILE_GUID = 5f6579f7-b648-4fdb-9f19-4c17e27e8eff
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = NULL
#
# VALID_ARCHITECTURES = ARM AARCH64
#
[Sources]
BaseStackCheckGcc.c | GCC
BaseStackCheckNull.c | MSFT
[Packages]
MdePkg/MdePkg.dec
[LibraryClasses]
BaseLib
DebugLib
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask ## CONSUMES

16
MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.uni
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@ -1,16 +0,0 @@
// /** @file
// Stack Check Library
//
// Stack Check Library
//
// Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
// **/
#string STR_MODULE_ABSTRACT #language en-US "Stack Check Library"
#string STR_MODULE_DESCRIPTION #language en-US "Stack Check Library"

9
MdePkg/Library/BaseStackCheckLib/BaseStackCheckNull.c
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@ -1,9 +0,0 @@
/** @file
This file is purely empty as a work around for BaseStackCheck to pass MSVC build.
Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
extern int __BaseStackCheckNull;

1
MdePkg/MdePkg.dsc
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@ -197,7 +197,6 @@
[Components.ARM, Components.AARCH64] [Components.ARM, Components.AARCH64]
MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicArmVirt.inf MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicArmVirt.inf
MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
MdePkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf MdePkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
[Components.RISCV64] [Components.RISCV64]