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MdePkg: Remove Old Stack Check Lib Implementation
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>
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/** @file
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Base Stack Check library for GCC/clang.
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Use -fstack-protector-all compiler flag to make the compiler insert the
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__stack_chk_guard "canary" value into the stack and check the value prior
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to exiting the function. If the "canary" is overwritten __stack_chk_fail()
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is called. This is GCC specific code.
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Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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Copyright (c) 2012, Apple Inc. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Base.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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/// "canary" value that is inserted by the compiler into the stack frame.
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VOID *__stack_chk_guard = (VOID *)0x0AFF;
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// If ASLR was enabled we could use
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// void (*__stack_chk_guard)(void) = __stack_chk_fail;
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/**
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Error path for compiler generated stack "canary" value check code. If the
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stack canary has been overwritten this function gets called on exit of the
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function.
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**/
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VOID
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__stack_chk_fail (
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VOID
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)
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{
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UINT8 DebugPropertyMask;
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DEBUG ((DEBUG_ERROR, "STACK FAULT: Buffer Overflow at 0x%p.\n", RETURN_ADDRESS (0)));
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//
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// Generate a Breakpoint, DeadLoop, or NOP based on PCD settings even if
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// BaseDebugLibNull is in use.
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//
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DebugPropertyMask = PcdGet8 (PcdDebugPropertyMask);
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if ((DebugPropertyMask & DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED) != 0) {
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CpuBreakpoint ();
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} else if ((DebugPropertyMask & DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED) != 0) {
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CpuDeadLoop ();
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}
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}
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## @file
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# Stack Check Library
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#
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# Stack Check Library
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#
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# Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = BaseStackCheckLib
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MODULE_UNI_FILE = BaseStackCheckLib.uni
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FILE_GUID = 5f6579f7-b648-4fdb-9f19-4c17e27e8eff
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = NULL
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#
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# VALID_ARCHITECTURES = ARM AARCH64
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#
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[Sources]
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BaseStackCheckGcc.c | GCC
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BaseStackCheckNull.c | MSFT
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[Packages]
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MdePkg/MdePkg.dec
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[LibraryClasses]
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BaseLib
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DebugLib
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[Pcd]
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gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask ## CONSUMES
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// /** @file
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// Stack Check Library
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//
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// Stack Check Library
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//
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// Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>
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//
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// SPDX-License-Identifier: BSD-2-Clause-Patent
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//
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// **/
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#string STR_MODULE_ABSTRACT #language en-US "Stack Check Library"
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#string STR_MODULE_DESCRIPTION #language en-US "Stack Check Library"
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/** @file
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This file is purely empty as a work around for BaseStackCheck to pass MSVC build.
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Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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extern int __BaseStackCheckNull;
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[Components.ARM, Components.AARCH64]
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MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicArmVirt.inf
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MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
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MdePkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
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[Components.RISCV64]
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