01f688be90
Since the default BaseMemoryLib should be callable from any context, including ones where unaligned accesses are not allowed, it implements InternalCopyMem() and InternalSetMem() using byte accesses only. However, especially in a context where the MMU is off, such narrow accesses may be disproportionately costly, and so if the size and alignment of the access allow it, use 32-bit or even 64-bit loads and stores (the latter may be beneficial even on a 32-bit architectures like ARM, which has load pair/store pair instructions) Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Liming Gao <liming.gao@intel.com>
58 lines
1.5 KiB
INI
58 lines
1.5 KiB
INI
## @file
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# Instance of Base Memory Library without assembly.
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#
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# Base Memory Library implementation - no ASM.
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#
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# Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php.
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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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 = BaseMemoryLib
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MODULE_UNI_FILE = BaseMemoryLib.uni
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FILE_GUID = fd44e603-002a-4b29-9f5f-529e815b6165
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = BaseMemoryLib
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#
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# VALID_ARCHITECTURES = IA32 X64 IPF EBC ARM AARCH64
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#
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[Sources]
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SetMem.c
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ScanMem64Wrapper.c
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ScanMem32Wrapper.c
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ScanMem16Wrapper.c
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ScanMem8Wrapper.c
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ZeroMemWrapper.c
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CompareMemWrapper.c
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SetMem64Wrapper.c
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SetMem32Wrapper.c
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SetMem16Wrapper.c
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SetMemWrapper.c
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CopyMemWrapper.c
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IsZeroBufferWrapper.c
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MemLibGeneric.c
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MemLibGuid.c
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CopyMem.c
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MemLibInternals.h
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[Packages]
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MdePkg/MdePkg.dec
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[LibraryClasses]
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DebugLib
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BaseLib
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