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ArmPkg: remove BaseMemoryLibStm 

All users have moved to the generic or accelerated versions in MdePkg,
so remove the obsolete BaseMemoryLibStm.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel 2016-09-21 08:59:36 +01:00
parent dbb735a3c4
commit 3be743974a
25 changed files with 0 additions and 2440 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
ArmPkg/ArmPkg.dsc
View File

@ -106,7 +106,6 @@
ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf
ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf
ArmPkg/Library/BaseMemoryLibStm/BaseMemoryLibStm.inf
ArmPkg/Library/BdsLib/BdsLib.inf
ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
ArmPkg/Library/DebugAgentSymbolsBaseLib/DebugAgentSymbolsBaseLib.inf

146
ArmPkg/Library/BaseMemoryLibStm/AArch64/CopyMem.c
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@ -1,146 +0,0 @@
/** @file
Copyright (c) 2012-2013, ARM Ltd. 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.
**/
#include "MemLibInternals.h"
/**
Copy Length bytes from Source to Destination.
@param DestinationBuffer Target of copy
@param SourceBuffer Place to copy from
@param Length Number of bytes to copy
@return Destination
**/
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
{
//
// Declare the local variables that actually move the data elements as
// volatile to prevent the optimizer from replacing this function with
// the intrinsic memcpy()
//
volatile UINT8 *Destination8;
CONST UINT8 *Source8;
volatile UINT32 *Destination32;
CONST UINT32 *Source32;
volatile UINT64 *Destination64;
CONST UINT64 *Source64;
UINTN Alignment;
if ((((UINTN)DestinationBuffer & 0x7) == 0) && (((UINTN)SourceBuffer & 0x7) == 0) && (Length >= 8)) {
if (SourceBuffer > DestinationBuffer) {
Destination64 = (UINT64*)DestinationBuffer;
Source64 = (CONST UINT64*)SourceBuffer;
while (Length >= 8) {
*(Destination64++) = *(Source64++);
Length -= 8;
}
// Finish if there are still some bytes to copy
Destination8 = (UINT8*)Destination64;
Source8 = (CONST UINT8*)Source64;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination64 = (UINT64*)((UINTN)DestinationBuffer + Length);
Source64 = (CONST UINT64*)((UINTN)SourceBuffer + Length);
// Destination64 and Source64 were aligned on a 64-bit boundary
// but if length is not a multiple of 8 bytes then they won't be
// anymore.
Alignment = Length & 0x7;
if (Alignment != 0) {
Destination8 = (UINT8*)Destination64;
Source8 = (CONST UINT8*)Source64;
while (Alignment-- != 0) {
*(--Destination8) = *(--Source8);
--Length;
}
Destination64 = (UINT64*)Destination8;
Source64 = (CONST UINT64*)Source8;
}
while (Length > 0) {
*(--Destination64) = *(--Source64);
Length -= 8;
}
}
} else if ((((UINTN)DestinationBuffer & 0x3) == 0) && (((UINTN)SourceBuffer & 0x3) == 0) && (Length >= 4)) {
if (SourceBuffer > DestinationBuffer) {
Destination32 = (UINT32*)DestinationBuffer;
Source32 = (CONST UINT32*)SourceBuffer;
while (Length >= 4) {
*(Destination32++) = *(Source32++);
Length -= 4;
}
// Finish if there are still some bytes to copy
Destination8 = (UINT8*)Destination32;
Source8 = (CONST UINT8*)Source32;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination32 = (UINT32*)((UINTN)DestinationBuffer + Length);
Source32 = (CONST UINT32*)((UINTN)SourceBuffer + Length);
// Destination32 and Source32 were aligned on a 32-bit boundary
// but if length is not a multiple of 4 bytes then they won't be
// anymore.
Alignment = Length & 0x3;
if (Alignment != 0) {
Destination8 = (UINT8*)Destination32;
Source8 = (CONST UINT8*)Source32;
while (Alignment-- != 0) {
*(--Destination8) = *(--Source8);
--Length;
}
Destination32 = (UINT32*)Destination8;
Source32 = (CONST UINT32*)Source8;
}
while (Length > 0) {
*(--Destination32) = *(--Source32);
Length -= 4;
}
}
} else {
if (SourceBuffer > DestinationBuffer) {
Destination8 = (UINT8*)DestinationBuffer;
Source8 = (CONST UINT8*)SourceBuffer;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination8 = (UINT8*)DestinationBuffer + Length;
Source8 = (CONST UINT8*)SourceBuffer + Length;
while (Length-- != 0) {
*(--Destination8) = *(--Source8);
}
}
}
return DestinationBuffer;
}

84
ArmPkg/Library/BaseMemoryLibStm/AArch64/SetMem.c
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@ -1,84 +0,0 @@
/** @file
Copyright (c) 2012-2013, ARM Ltd. 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.
**/
#include "MemLibInternals.h"
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
{
//
// Declare the local variables that actually move the data elements as
// volatile to prevent the optimizer from replacing this function with
// the intrinsic memset()
//
volatile UINT8 *Pointer8;
volatile UINT32 *Pointer32;
volatile UINT64 *Pointer64;
UINT32 Value32;
UINT64 Value64;
if ((((UINTN)Buffer & 0x7) == 0) && (Length >= 8)) {
// Generate the 64bit value
Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value;
Value64 = (((UINT64)Value32) << 32) | Value32;
Pointer64 = (UINT64*)Buffer;
while (Length >= 8) {
*(Pointer64++) = Value64;
Length -= 8;
}
// Finish with bytes if needed
Pointer8 = (UINT8*)Pointer64;
while (Length-- > 0) {
*(Pointer8++) = Value;
}
} else if ((((UINTN)Buffer & 0x3) == 0) && (Length >= 4)) {
// Generate the 32bit value
Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value;
Pointer32 = (UINT32*)Buffer;
while (Length >= 4) {
*(Pointer32++) = Value32;
Length -= 4;
}
// Finish with bytes if needed
Pointer8 = (UINT8*)Pointer32;
while (Length-- > 0) {
*(Pointer8++) = Value;
}
} else {
Pointer8 = (UINT8*)Buffer;
while (Length-- > 0) {
*(Pointer8++) = Value;
}
}
return Buffer;
}

169
ArmPkg/Library/BaseMemoryLibStm/Arm/CopyMem.S
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@ -1,169 +0,0 @@
#------------------------------------------------------------------------------
#
# CopyMem() worker for ARM
#
# This file started out as C code that did 64 bit moves if the buffer was
# 32-bit aligned, else it does a byte copy. It also does a byte copy for
# any trailing bytes. It was updated to do 32-byte copies using stm/ldm.
#
# Copyright (c) 2008 - 2010, Apple Inc. 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.
#
#------------------------------------------------------------------------------
#include <AsmMacroIoLib.h>
/**
Copy Length bytes from Source to Destination. Overlap is OK.
This implementation
@param Destination Target of copy
@param Source Place to copy from
@param Length Number of bytes to copy
@return Destination
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
**/
ASM_FUNC(InternalMemCopyMem)
stmfd sp!, {r4-r11, lr}
// Save the input parameters in extra registers (r11 = destination, r14 = source, r12 = length)
mov r11, r0
mov r10, r0
mov r12, r2
mov r14, r1
memcopy_check_overlapped:
cmp r11, r1
// If (dest < source)
bcc memcopy_check_optim_default
// If (dest <= source). But with the previous condition -> If (dest == source)
bls memcopy_end
// If (source + length < dest)
rsb r3, r1, r11
cmp r12, r3
bcc memcopy_check_optim_default
// If (length == 0)
cmp r12, #0
beq memcopy_end
b memcopy_check_optim_overlap
memcopy_check_optim_default:
// Check if we can use an optimized path ((length >= 32) && destination word-aligned && source word-aligned) for the memcopy (optimized path if r0 == 1)
tst r0, #0xF
movne r0, #0
bne memcopy_default
tst r1, #0xF
movne r3, #0
moveq r3, #1
cmp r2, #31
movls r0, #0
andhi r0, r3, #1
b memcopy_default
memcopy_check_optim_overlap:
// r10 = dest_end, r14 = source_end
add r10, r11, r12
add r14, r12, r1
// Are we in the optimized case ((length >= 32) && dest_end word-aligned && source_end word-aligned)
cmp r2, #31
movls r0, #0
movhi r0, #1
tst r10, #0xF
movne r0, #0
tst r14, #0xF
movne r0, #0
b memcopy_overlapped
memcopy_overlapped_non_optim:
// We read 1 byte from the end of the source buffer
sub r3, r14, #1
sub r12, r12, #1
ldrb r3, [r3, #0]
sub r2, r10, #1
cmp r12, #0
// We write 1 byte at the end of the dest buffer
sub r10, r10, #1
sub r14, r14, #1
strb r3, [r2, #0]
bne memcopy_overlapped_non_optim
b memcopy_end
// r10 = dest_end, r14 = source_end
memcopy_overlapped:
// Are we in the optimized case ?
cmp r0, #0
beq memcopy_overlapped_non_optim
// Optimized Overlapped - Read 32 bytes
sub r14, r14, #32
sub r12, r12, #32
cmp r12, #31
ldmia r14, {r2-r9}
// If length is less than 32 then disable optim
movls r0, #0
cmp r12, #0
// Optimized Overlapped - Write 32 bytes
sub r10, r10, #32
stmia r10, {r2-r9}
// while (length != 0)
bne memcopy_overlapped
b memcopy_end
memcopy_default_non_optim:
// Byte copy
ldrb r3, [r14], #1
sub r12, r12, #1
strb r3, [r10], #1
memcopy_default:
cmp r12, #0
beq memcopy_end
// r10 = dest, r14 = source
memcopy_default_loop:
cmp r0, #0
beq memcopy_default_non_optim
// Optimized memcopy - Read 32 Bytes
sub r12, r12, #32
cmp r12, #31
ldmia r14!, {r2-r9}
// If length is less than 32 then disable optim
movls r0, #0
cmp r12, #0
// Optimized memcopy - Write 32 Bytes
stmia r10!, {r2-r9}
// while (length != 0)
bne memcopy_default_loop
memcopy_end:
mov r0, r11
ldmfd sp!, {r4-r11, pc}

172
ArmPkg/Library/BaseMemoryLibStm/Arm/CopyMem.asm
View File

@ -1,172 +0,0 @@
;------------------------------------------------------------------------------
;
; CopyMem() worker for ARM
;
; This file started out as C code that did 64 bit moves if the buffer was
; 32-bit aligned, else it does a byte copy. It also does a byte copy for
; any trailing bytes. It was updated to do 32-byte copies using stm/ldm.
;
; Copyright (c) 2008 - 2010, Apple Inc. 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.
;
;------------------------------------------------------------------------------
/**
Copy Length bytes from Source to Destination. Overlap is OK.
This implementation
@param Destination Target of copy
@param Source Place to copy from
@param Length Number of bytes to copy
@return Destination
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
**/
INCLUDE AsmMacroExport.inc
RVCT_ASM_EXPORT InternalMemCopyMem
stmfd sp!, {r4-r11, lr}
// Save the input parameters in extra registers (r11 = destination, r14 = source, r12 = length)
mov r11, r0
mov r10, r0
mov r12, r2
mov r14, r1
memcopy_check_overlapped
cmp r11, r1
// If (dest < source)
bcc memcopy_check_optim_default
// If (dest <= source). But with the previous condition -> If (dest == source)
bls memcopy_end
// If (source + length < dest)
rsb r3, r1, r11
cmp r12, r3
bcc memcopy_check_optim_default
// If (length == 0)
cmp r12, #0
beq memcopy_end
b memcopy_check_optim_overlap
memcopy_check_optim_default
// Check if we can use an optimized path ((length >= 32) && destination word-aligned && source word-aligned) for the memcopy (optimized path if r0 == 1)
tst r0, #0xF
movne r0, #0
bne memcopy_default
tst r1, #0xF
movne r3, #0
moveq r3, #1
cmp r2, #31
movls r0, #0
andhi r0, r3, #1
b memcopy_default
memcopy_check_optim_overlap
// r10 = dest_end, r14 = source_end
add r10, r11, r12
add r14, r12, r1
// Are we in the optimized case ((length >= 32) && dest_end word-aligned && source_end word-aligned)
cmp r2, #31
movls r0, #0
movhi r0, #1
tst r10, #0xF
movne r0, #0
tst r14, #0xF
movne r0, #0
b memcopy_overlapped
memcopy_overlapped_non_optim
// We read 1 byte from the end of the source buffer
sub r3, r14, #1
sub r12, r12, #1
ldrb r3, [r3, #0]
sub r2, r10, #1
cmp r12, #0
// We write 1 byte at the end of the dest buffer
sub r10, r10, #1
sub r14, r14, #1
strb r3, [r2, #0]
bne memcopy_overlapped_non_optim
b memcopy_end
// r10 = dest_end, r14 = source_end
memcopy_overlapped
// Are we in the optimized case ?
cmp r0, #0
beq memcopy_overlapped_non_optim
// Optimized Overlapped - Read 32 bytes
sub r14, r14, #32
sub r12, r12, #32
cmp r12, #31
ldmia r14, {r2-r9}
// If length is less than 32 then disable optim
movls r0, #0
cmp r12, #0
// Optimized Overlapped - Write 32 bytes
sub r10, r10, #32
stmia r10, {r2-r9}
// while (length != 0)
bne memcopy_overlapped
b memcopy_end
memcopy_default_non_optim
// Byte copy
ldrb r3, [r14], #1
sub r12, r12, #1
strb r3, [r10], #1
memcopy_default
cmp r12, #0
beq memcopy_end
// r10 = dest, r14 = source
memcopy_default_loop
cmp r0, #0
beq memcopy_default_non_optim
// Optimized memcopy - Read 32 Bytes
sub r12, r12, #32
cmp r12, #31
ldmia r14!, {r2-r9}
// If length is less than 32 then disable optim
movls r0, #0
cmp r12, #0
// Optimized memcopy - Write 32 Bytes
stmia r10!, {r2-r9}
// while (length != 0)
bne memcopy_default_loop
memcopy_end
mov r0, r11
ldmfd sp!, {r4-r11, pc}
END

81
ArmPkg/Library/BaseMemoryLibStm/Arm/SetMem.S
View File

@ -1,81 +0,0 @@
#------------------------------------------------------------------------------
#
# SemMem() worker for ARM
#
# This file started out as C code that did 64 bit moves if the buffer was
# 32-bit aligned, else it does a byte copy. It also does a byte copy for
# any trailing bytes. It was updated to do 32-byte at a time.
#
# Copyright (c) 2008 - 2010, Apple Inc. 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.
#
#------------------------------------------------------------------------------
#include <AsmMacroIoLib.h>
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
**/
.syntax unified
ASM_FUNC(InternalMemSetMem)
stmfd sp!, {r4-r11, lr}
tst r0, #3
movne r3, #0
moveq r3, #1
cmp r1, #31
movls lr, #0
andhi lr, r3, #1
cmp lr, #0
mov r12, r0
bne L31
L32:
mov r3, #0
b L43
L31:
and r4, r2, #0xff
orr r4, r4, r4, LSL #8
orr r4, r4, r4, LSL #16
mov r5, r4
mov r6, r4
mov r7, r4
mov r8, r4
mov r9, r4
mov r10, r4
mov r11, r4
b L32
L34:
cmp lr, #0
strbeq r2, [r12], #1
subeq r1, r1, #1
beq L43
sub r1, r1, #32
cmp r1, #31
movls lr, r3
stmia r12!, {r4-r11}
L43:
cmp r1, #0
bne L34
ldmfd sp!, {r4-r11, pc}

80
ArmPkg/Library/BaseMemoryLibStm/Arm/SetMem.asm
View File

@ -1,80 +0,0 @@
;------------------------------------------------------------------------------
;
; SetMem() worker for ARM
;
; This file started out as C code that did 64 bit moves if the buffer was
; 32-bit aligned, else it does a byte copy. It also does a byte copy for
; any trailing bytes. It was updated to do 32-byte at a time.
;
; Copyright (c) 2008 - 2010, Apple Inc. 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.
;
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
**/
INCLUDE AsmMacroExport.inc
RVCT_ASM_EXPORT InternalMemSetMem
stmfd sp!, {r4-r11, lr}
tst r0, #3
movne r3, #0
moveq r3, #1
cmp r1, #31
movls lr, #0
andhi lr, r3, #1
cmp lr, #0
mov r12, r0
bne L31
L32
mov r3, #0
b L43
L31
and r4, r2, #0xff
orr r4, r4, r4, LSL #8
orr r4, r4, r4, LSL #16
mov r5, r4
mov r6, r4
mov r7, r4
mov r8, r4
mov r9, r4
mov r10, r4
mov r11, r4
b L32
L34
cmp lr, #0
streqb r2, [r12], #1
subeq r1, r1, #1
beq L43
sub r1, r1, #32
cmp r1, #31
movls lr, r3
stmia r12!, {r4-r11}
L43
cmp r1, #0
bne L34
ldmfd sp!, {r4-r11, pc}
END

70
ArmPkg/Library/BaseMemoryLibStm/BaseMemoryLibStm.inf
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@ -1,70 +0,0 @@
## @file
# Instance of Base Memory Library with some ARM ldm/stm assembly.
#
# This is a copy of the MdePkg BaseMemoryLib with the CopyMem and
# SetMem worker functions replaced with assembler that uses
# ldm/stm.
#
# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2010, Apple Inc. All rights reserved.<BR>
# Portions copyright (c) 2011 - 2013, ARM Ltd. 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.
#
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = BaseMemoryLibStm
FILE_GUID = 4D466AF3-2380-448D-A337-E4033F29F3F7
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = BaseMemoryLib
#
# VALID_ARCHITECTURES = ARM AARCH64
#
[Sources.Common]
ScanMem64Wrapper.c
ScanMem32Wrapper.c
ScanMem16Wrapper.c
ScanMem8Wrapper.c
ZeroMemWrapper.c
CompareMemWrapper.c
SetMem64Wrapper.c
SetMem32Wrapper.c
SetMem16Wrapper.c
SetMemWrapper.c
CopyMemWrapper.c
IsZeroBufferWrapper.c
MemLibGeneric.c
MemLibGuid.c
MemLibInternals.h
[Sources.ARM]
Arm/CopyMem.asm
Arm/CopyMem.S
Arm/SetMem.asm
Arm/SetMem.S
[Sources.AARCH64]
AArch64/CopyMem.c
AArch64/SetMem.c
[Packages]
MdePkg/MdePkg.dec
ArmPkg/ArmPkg.dec
[LibraryClasses]
DebugLib
BaseLib

66
ArmPkg/Library/BaseMemoryLibStm/CompareMemWrapper.c
View File

@ -1,66 +0,0 @@
/** @file
CompareMem() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Compares the contents of two buffers.
This function compares Length bytes of SourceBuffer to Length bytes of DestinationBuffer.
If all Length bytes of the two buffers are identical, then 0 is returned. Otherwise, the
value returned is the first mismatched byte in SourceBuffer subtracted from the first
mismatched byte in DestinationBuffer.
If Length > 0 and DestinationBuffer is NULL, then ASSERT().
If Length > 0 and SourceBuffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().
@param DestinationBuffer Pointer to the destination buffer to compare.
@param SourceBuffer Pointer to the source buffer to compare.
@param Length Number of bytes to compare.
@return 0 All Length bytes of the two buffers are identical.
@retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first
mismatched byte in DestinationBuffer.
**/
INTN
EFIAPI
CompareMem (
IN CONST VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
{
if (Length == 0 || DestinationBuffer == SourceBuffer) {
return 0;
}
ASSERT (DestinationBuffer != NULL);
ASSERT (SourceBuffer != NULL);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));
return InternalMemCompareMem (DestinationBuffer, SourceBuffer, Length);
}

62
ArmPkg/Library/BaseMemoryLibStm/CopyMem.c
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@ -1,62 +0,0 @@
/** @file
Implementation of the InternalMemCopyMem routine. This function is broken
out into its own source file so that it can be excluded from a build for a
particular platform easily if an optimized version is desired.
Copyright (c) 2006 - 2008, 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.
**/
#include "MemLibInternals.h"
/**
Copy Length bytes from Source to Destination.
@param DestinationBuffer Target of copy
@param SourceBuffer Place to copy from
@param Length Number of bytes to copy
@return Destination
**/
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
{
//
// Declare the local variables that actually move the data elements as
// volatile to prevent the optimizer from replacing this function with
// the intrinsic memcpy()
//
volatile UINT8 *Destination8;
CONST UINT8 *Source8;
if (SourceBuffer > DestinationBuffer) {
Destination8 = (UINT8*)DestinationBuffer;
Source8 = (CONST UINT8*)SourceBuffer;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination8 = (UINT8*)DestinationBuffer + Length;
Source8 = (CONST UINT8*)SourceBuffer + Length;
while (Length-- != 0) {
*(--Destination8) = *(--Source8);
}
}
return DestinationBuffer;
}

63
ArmPkg/Library/BaseMemoryLibStm/CopyMemWrapper.c
View File

@ -1,63 +0,0 @@
/** @file
CopyMem() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Copies a source buffer to a destination buffer, and returns the destination buffer.
This function copies Length bytes from SourceBuffer to DestinationBuffer, and returns
DestinationBuffer. The implementation must be reentrant, and it must handle the case
where SourceBuffer overlaps DestinationBuffer.
If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().
@param DestinationBuffer Pointer to the destination buffer of the memory copy.
@param SourceBuffer Pointer to the source buffer of the memory copy.
@param Length Number of bytes to copy from SourceBuffer to DestinationBuffer.
@return DestinationBuffer.
**/
VOID *
EFIAPI
CopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
{
if (Length == 0) {
return DestinationBuffer;
}
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));
if (DestinationBuffer == SourceBuffer) {
return DestinationBuffer;
}
return InternalMemCopyMem (DestinationBuffer, SourceBuffer, Length);
}

54
ArmPkg/Library/BaseMemoryLibStm/IsZeroBufferWrapper.c
View File

@ -1,54 +0,0 @@
/** @file
Implementation of IsZeroBuffer function.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2016, 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.
**/
#include "MemLibInternals.h"
/**
Checks if the contents of a buffer are all zeros.
This function checks whether the contents of a buffer are all zeros. If the
contents are all zeros, return TRUE. Otherwise, return FALSE.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer The pointer to the buffer to be checked.
@param Length The size of the buffer (in bytes) to be checked.
@retval TRUE Contents of the buffer are all zeros.
@retval FALSE Contents of the buffer are not all zeros.
**/
BOOLEAN
EFIAPI
IsZeroBuffer (
IN CONST VOID *Buffer,
IN UINTN Length
)
{
ASSERT (!(Buffer == NULL && Length > 0));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
return InternalMemIsZeroBuffer (Buffer, Length);
}

293
ArmPkg/Library/BaseMemoryLibStm/MemLibGeneric.c
View File

@ -1,293 +0,0 @@
/** @file
Architecture Independent Base Memory Library Implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Fills a target buffer with a 16-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Count of 16-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem16 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
)
{
do {
((UINT16*)Buffer)[--Length] = Value;
} while (Length != 0);
return Buffer;
}
/**
Fills a target buffer with a 32-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Count of 32-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem32 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT32 Value
)
{
do {
((UINT32*)Buffer)[--Length] = Value;
} while (Length != 0);
return Buffer;
}
/**
Fills a target buffer with a 64-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Count of 64-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem64 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT64 Value
)
{
do {
((UINT64*)Buffer)[--Length] = Value;
} while (Length != 0);
return Buffer;
}
/**
Set Buffer to 0 for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@return Buffer
**/
VOID *
EFIAPI
InternalMemZeroMem (
OUT VOID *Buffer,
IN UINTN Length
)
{
return InternalMemSetMem (Buffer, Length, 0);
}
/**
Compares two memory buffers of a given length.
@param DestinationBuffer First memory buffer
@param SourceBuffer Second memory buffer
@param Length Length of DestinationBuffer and SourceBuffer memory
regions to compare. Must be non-zero.
@return 0 All Length bytes of the two buffers are identical.
@retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first
mismatched byte in DestinationBuffer.
**/
INTN
EFIAPI
InternalMemCompareMem (
IN CONST VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
{
while ((--Length != 0) &&
(*(INT8*)DestinationBuffer == *(INT8*)SourceBuffer)) {
DestinationBuffer = (INT8*)DestinationBuffer + 1;
SourceBuffer = (INT8*)SourceBuffer + 1;
}
return (INTN)*(UINT8*)DestinationBuffer - (INTN)*(UINT8*)SourceBuffer;
}
/**
Scans a target buffer for an 8-bit value, and returns a pointer to the
matching 8-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 8-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem8 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
{
CONST UINT8 *Pointer;
Pointer = (CONST UINT8*)Buffer;
do {
if (*Pointer == Value) {
return Pointer;
}
Pointer++;
} while (--Length != 0);
return NULL;
}
/**
Scans a target buffer for a 16-bit value, and returns a pointer to the
matching 16-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 16-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem16 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
)
{
CONST UINT16 *Pointer;
Pointer = (CONST UINT16*)Buffer;
do {
if (*Pointer == Value) {
return Pointer;
}
Pointer++;
} while (--Length != 0);
return NULL;
}
/**
Scans a target buffer for a 32-bit value, and returns a pointer to the
matching 32-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 32-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem32 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT32 Value
)
{
CONST UINT32 *Pointer;
Pointer = (CONST UINT32*)Buffer;
do {
if (*Pointer == Value) {
return Pointer;
}
Pointer++;
} while (--Length != 0);
return NULL;
}
/**
Scans a target buffer for a 64-bit value, and returns a pointer to the
matching 64-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 64-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem64 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT64 Value
)
{
CONST UINT64 *Pointer;
Pointer = (CONST UINT64*)Buffer;
do {
if (*Pointer == Value) {
return Pointer;
}
Pointer++;
} while (--Length != 0);
return NULL;
}
/**
Checks whether the contents of a buffer are all zeros.
@param Buffer The pointer to the buffer to be checked.
@param Length The size of the buffer (in bytes) to be checked.
@retval TRUE Contents of the buffer are all zeros.
@retval FALSE Contents of the buffer are not all zeros.
**/
BOOLEAN
EFIAPI
InternalMemIsZeroBuffer (
IN CONST VOID *Buffer,
IN UINTN Length
)
{
CONST UINT8 *BufferData;
UINTN Index;
BufferData = Buffer;
for (Index = 0; Index < Length; Index++) {
if (BufferData[Index] != 0) {
return FALSE;
}
}
return TRUE;
}

161
ArmPkg/Library/BaseMemoryLibStm/MemLibGuid.c
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@ -1,161 +0,0 @@
/** @file
Implementation of GUID functions.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Copies a source GUID to a destination GUID.
This function copies the contents of the 128-bit GUID specified by SourceGuid to
DestinationGuid, and returns DestinationGuid.
If DestinationGuid is NULL, then ASSERT().
If SourceGuid is NULL, then ASSERT().
@param DestinationGuid Pointer to the destination GUID.
@param SourceGuid Pointer to the source GUID.
@return DestinationGuid.
**/
GUID *
EFIAPI
CopyGuid (
OUT GUID *DestinationGuid,
IN CONST GUID *SourceGuid
)
{
WriteUnaligned64 (
(UINT64*)DestinationGuid,
ReadUnaligned64 ((CONST UINT64*)SourceGuid)
);
WriteUnaligned64 (
(UINT64*)DestinationGuid + 1,
ReadUnaligned64 ((CONST UINT64*)SourceGuid + 1)
);
return DestinationGuid;
}
/**
Compares two GUIDs.
This function compares Guid1 to Guid2. If the GUIDs are identical then TRUE is returned.
If there are any bit differences in the two GUIDs, then FALSE is returned.
If Guid1 is NULL, then ASSERT().
If Guid2 is NULL, then ASSERT().
@param Guid1 A pointer to a 128 bit GUID.
@param Guid2 A pointer to a 128 bit GUID.
@retval TRUE Guid1 and Guid2 are identical.
@retval FALSE Guid1 and Guid2 are not identical.
**/
BOOLEAN
EFIAPI
CompareGuid (
IN CONST GUID *Guid1,
IN CONST GUID *Guid2
)
{
return (CompareMem(Guid1, Guid2, sizeof(GUID)) == 0) ? TRUE : FALSE;
}
/**
Scans a target buffer for a GUID, and returns a pointer to the matching GUID
in the target buffer.
This function searches the target buffer specified by Buffer and Length from
the lowest address to the highest address at 128-bit increments for the 128-bit
GUID value that matches Guid. If a match is found, then a pointer to the matching
GUID in the target buffer is returned. If no match is found, then NULL is returned.
If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
If Length is not aligned on a 128-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Guid Value to search for in the target buffer.
@return A pointer to the matching Guid in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanGuid (
IN CONST VOID *Buffer,
IN UINTN Length,
IN CONST GUID *Guid
)
{
CONST GUID *GuidPtr;
ASSERT (((UINTN)Buffer & (sizeof (Guid->Data1) - 1)) == 0);
ASSERT (Length <= (MAX_ADDRESS - (UINTN)Buffer + 1));
ASSERT ((Length & (sizeof (*GuidPtr) - 1)) == 0);
GuidPtr = (GUID*)Buffer;
Buffer = GuidPtr + Length / sizeof (*GuidPtr);
while (GuidPtr < (CONST GUID*)Buffer) {
if (CompareGuid (GuidPtr, Guid)) {
return (VOID*)GuidPtr;
}
GuidPtr++;
}
return NULL;
}
/**
Checks if the given GUID is a zero GUID.
This function checks whether the given GUID is a zero GUID. If the GUID is
identical to a zero GUID then TRUE is returned. Otherwise, FALSE is returned.
If Guid is NULL, then ASSERT().
@param Guid The pointer to a 128 bit GUID.
@retval TRUE Guid is a zero GUID.
@retval FALSE Guid is not a zero GUID.
**/
BOOLEAN
EFIAPI
IsZeroGuid (
IN CONST GUID *Guid
)
{
UINT64 LowPartOfGuid;
UINT64 HighPartOfGuid;
LowPartOfGuid = ReadUnaligned64 ((CONST UINT64*) Guid);
HighPartOfGuid = ReadUnaligned64 ((CONST UINT64*) Guid + 1);
return (BOOLEAN) (LowPartOfGuid == 0 && HighPartOfGuid == 0);
}

251
ArmPkg/Library/BaseMemoryLibStm/MemLibInternals.h
View File

@ -1,251 +0,0 @@
/** @file
Declaration of internal functions for Base Memory Library.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
Copyright (c) 2006 - 2009, 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.
**/
#ifndef __MEM_LIB_INTERNALS__
#define __MEM_LIB_INTERNALS__
#include <Base.h>
#include <Library/BaseMemoryLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
/**
Copy Length bytes from Source to Destination.
@param DestinationBuffer Target of copy
@param SourceBuffer Place to copy from
@param Length Number of bytes to copy
@return Destination
**/
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
);
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
);
/**
Fills a target buffer with a 16-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Count of 16-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem16 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
);
/**
Fills a target buffer with a 32-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Count of 32-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem32 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT32 Value
);
/**
Fills a target buffer with a 64-bit value, and returns the target buffer.
@param Buffer Pointer to the target buffer to fill.
@param Length Count of 64-bit value to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem64 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT64 Value
);
/**
Set Buffer to 0 for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@return Buffer
**/
VOID *
EFIAPI
InternalMemZeroMem (
OUT VOID *Buffer,
IN UINTN Length
);
/**
Compares two memory buffers of a given length.
@param DestinationBuffer First memory buffer
@param SourceBuffer Second memory buffer
@param Length Length of DestinationBuffer and SourceBuffer memory
regions to compare. Must be non-zero.
@return 0 All Length bytes of the two buffers are identical.
@retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first
mismatched byte in DestinationBuffer.
**/
INTN
EFIAPI
InternalMemCompareMem (
IN CONST VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
);
/**
Scans a target buffer for an 8-bit value, and returns a pointer to the
matching 8-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 8-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem8 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
);
/**
Scans a target buffer for a 16-bit value, and returns a pointer to the
matching 16-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 16-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem16 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
);
/**
Scans a target buffer for a 32-bit value, and returns a pointer to the
matching 32-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 32-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem32 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT32 Value
);
/**
Scans a target buffer for a 64-bit value, and returns a pointer to the
matching 64-bit value in the target buffer.
@param Buffer Pointer to the target buffer to scan.
@param Length Count of 64-bit value to scan. Must be non-zero.
@param Value Value to search for in the target buffer.
@return Pointer to the first occurrence or NULL if not found.
**/
CONST VOID *
EFIAPI
InternalMemScanMem64 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT64 Value
);
/**
Checks whether the contents of a buffer are all zeros.
@param Buffer The pointer to the buffer to be checked.
@param Length The size of the buffer (in bytes) to be checked.
@retval TRUE Contents of the buffer are all zeros.
@retval FALSE Contents of the buffer are not all zeros.
**/
BOOLEAN
EFIAPI
InternalMemIsZeroBuffer (
IN CONST VOID *Buffer,
IN UINTN Length
);
#endif

67
ArmPkg/Library/BaseMemoryLibStm/ScanMem16Wrapper.c
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@ -1,67 +0,0 @@
/** @file
ScanMem16() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Scans a target buffer for a 16-bit value, and returns a pointer to the matching 16-bit value
in the target buffer.
This function searches the target buffer specified by Buffer and Length from the lowest
address to the highest address for a 16-bit value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMem16 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
)
{
if (Length == 0) {
return NULL;
}
ASSERT (Buffer != NULL);
ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return (VOID*)InternalMemScanMem16 (Buffer, Length / sizeof (Value), Value);
}

66
ArmPkg/Library/BaseMemoryLibStm/ScanMem32Wrapper.c
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@ -1,66 +0,0 @@
/** @file
ScanMem32() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Scans a target buffer for a 32-bit value, and returns a pointer to the matching 32-bit value
in the target buffer.
This function searches the target buffer specified by Buffer and Length from the lowest
address to the highest address for a 32-bit value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
If Length is not aligned on a 32-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMem32 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT32 Value
)
{
if (Length == 0) {
return NULL;
}
ASSERT (Buffer != NULL);
ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return (VOID*)InternalMemScanMem32 (Buffer, Length / sizeof (Value), Value);
}

67
ArmPkg/Library/BaseMemoryLibStm/ScanMem64Wrapper.c
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@ -1,67 +0,0 @@
/** @file
ScanMem64() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Scans a target buffer for a 64-bit value, and returns a pointer to the matching 64-bit value
in the target buffer.
This function searches the target buffer specified by Buffer and Length from the lowest
address to the highest address for a 64-bit value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
If Length is not aligned on a 64-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMem64 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT64 Value
)
{
if (Length == 0) {
return NULL;
}
ASSERT (Buffer != NULL);
ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return (VOID*)InternalMemScanMem64 (Buffer, Length / sizeof (Value), Value);
}

99
ArmPkg/Library/BaseMemoryLibStm/ScanMem8Wrapper.c
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@ -1,99 +0,0 @@
/** @file
ScanMem8() and ScanMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Scans a target buffer for an 8-bit value, and returns a pointer to the matching 8-bit value
in the target buffer.
This function searches the target buffer specified by Buffer and Length from the lowest
address to the highest address for an 8-bit value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMem8 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
{
if (Length == 0) {
return NULL;
}
ASSERT (Buffer != NULL);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
return (VOID*)InternalMemScanMem8 (Buffer, Length, Value);
}
/**
Scans a target buffer for a UINTN sized value, and returns a pointer to the matching
UINTN sized value in the target buffer.
This function searches the target buffer specified by Buffer and Length from the lowest
address to the highest address for a UINTN sized value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to scan.
@param Length Number of bytes in Buffer to scan.
@param Value Value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMemN (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return ScanMem64 (Buffer, Length, (UINT64)Value);
} else {
return ScanMem32 (Buffer, Length, (UINT32)Value);
}
}

53
ArmPkg/Library/BaseMemoryLibStm/SetMem.c
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@ -1,53 +0,0 @@
/** @file
Implementation of the EfiSetMem routine. This function is broken
out into its own source file so that it can be excluded from a
build for a particular platform easily if an optimized version
is desired.
Copyright (c) 2006 - 2010, 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.
**/
#include "MemLibInternals.h"
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
{
//
// Declare the local variables that actually move the data elements as
// volatile to prevent the optimizer from replacing this function with
// the intrinsic memset()
//
volatile UINT8 *Pointer;
Pointer = (UINT8*)Buffer;
while (Length-- > 0) {
*(Pointer++) = Value;
}
return Buffer;
}

64
ArmPkg/Library/BaseMemoryLibStm/SetMem16Wrapper.c
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@ -1,64 +0,0 @@
/** @file
SetMem16() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Fills a target buffer with a 16-bit value, and returns the target buffer.
This function fills Length bytes of Buffer with the 16-bit value specified by
Value, and returns Buffer. Value is repeated every 16-bits in for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMem16 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
)
{
if (Length == 0) {
return Buffer;
}
ASSERT (Buffer != NULL);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((((UINTN)Buffer) & (sizeof (Value) - 1)) == 0);
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return InternalMemSetMem16 (Buffer, Length / sizeof (Value), Value);
}

64
ArmPkg/Library/BaseMemoryLibStm/SetMem32Wrapper.c
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@ -1,64 +0,0 @@
/** @file
SetMem32() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Fills a target buffer with a 32-bit value, and returns the target buffer.
This function fills Length bytes of Buffer with the 32-bit value specified by
Value, and returns Buffer. Value is repeated every 32-bits in for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
If Length is not aligned on a 32-bit boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMem32 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT32 Value
)
{
if (Length == 0) {
return Buffer;
}
ASSERT (Buffer != NULL);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((((UINTN)Buffer) & (sizeof (Value) - 1)) == 0);
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return InternalMemSetMem32 (Buffer, Length / sizeof (Value), Value);
}

64
ArmPkg/Library/BaseMemoryLibStm/SetMem64Wrapper.c
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@ -1,64 +0,0 @@
/** @file
SetMem64() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Fills a target buffer with a 64-bit value, and returns the target buffer.
This function fills Length bytes of Buffer with the 64-bit value specified by
Value, and returns Buffer. Value is repeated every 64-bits in for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
If Length is not aligned on a 64-bit boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMem64 (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT64 Value
)
{
if (Length == 0) {
return Buffer;
}
ASSERT (Buffer != NULL);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((((UINTN)Buffer) & (sizeof (Value) - 1)) == 0);
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return InternalMemSetMem64 (Buffer, Length / sizeof (Value), Value);
}

91
ArmPkg/Library/BaseMemoryLibStm/SetMemWrapper.c
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@ -1,91 +0,0 @@
/** @file
SetMem() and SetMemN() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Fills a target buffer with a byte value, and returns the target buffer.
This function fills Length bytes of Buffer with Value, and returns Buffer.
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Memory to set.
@param Length Number of bytes to set.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
{
if (Length == 0) {
return Buffer;
}
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
return InternalMemSetMem (Buffer, Length, Value);
}
/**
Fills a target buffer with a value that is size UINTN, and returns the target buffer.
This function fills Length bytes of Buffer with the UINTN sized value specified by
Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length
bytes of Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Buffer is not aligned on a UINTN boundary, then ASSERT().
If Length is not aligned on a UINTN boundary, then ASSERT().
@param Buffer Pointer to the target buffer to fill.
@param Length Number of bytes in Buffer to fill.
@param Value Value with which to fill Length bytes of Buffer.
@return Buffer.
**/
VOID *
EFIAPI
SetMemN (
OUT VOID *Buffer,
IN UINTN Length,
IN UINTN Value
)
{
if (sizeof (UINTN) == sizeof (UINT64)) {
return SetMem64 (Buffer, Length, (UINT64)Value);
} else {
return SetMem32 (Buffer, Length, (UINT32)Value);
}
}

52
ArmPkg/Library/BaseMemoryLibStm/ZeroMemWrapper.c
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@ -1,52 +0,0 @@
/** @file
ZeroMem() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2009, 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.
**/
#include "MemLibInternals.h"
/**
Fills a target buffer with zeros, and returns the target buffer.
This function fills Length bytes of Buffer with zeros, and returns Buffer.
If Length > 0 and Buffer is NULL, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer Pointer to the target buffer to fill with zeros.
@param Length Number of bytes in Buffer to fill with zeros.
@return Buffer.
**/
VOID *
EFIAPI
ZeroMem (
OUT VOID *Buffer,
IN UINTN Length
)
{
ASSERT (!(Buffer == NULL && Length > 0));
ASSERT (Length <= (MAX_ADDRESS - (UINTN)Buffer + 1));
return InternalMemZeroMem (Buffer, Length);
}