4ba61e5e2a
The MAX_BIT of EBC will no longer be fixed to bit 63. It is defined as (1ULL << (sizeof (INTN) * 8 - 1)). Make EdkModulePkg & MdePkg EBC compiler clean: treat all EFI_STATUS error code as variable. 2. PrintLib Complete all missing ASSERT()s. Fix “\n” & “%\n” issue thanks to the clarification of MWG 0.56d. Adjust StatusString array to support EBC build. 3. BaseMemoryLib Adjust ASSERT () & function header of ComparaMem, SetMemXX, ScanMemXX to synchronize with MWG 0.56d. 4.SmbusLib Change Pec bit to bit 22 SmBusAddress to synchronize MWG 0.56d. Add ASSERT()s to check if length is illegal for SmBusBlockWrite() & SmBusProcessBlock() since it is 6 bit now. 5. PerformanceLib Rename “EdkDxePerformanceLib” & “EdkPeiPerformanceLib” to “DxePerformanceLib” & “PeiPerformanceLib” respectively. Synchronize the function header of GetPerformanceMeasurement() with MWG 0.56d. 6. BasePeCoffLoaderLib. Make PeCoffLoaderLoadImage () Assert() if ImageContext is NULL> Make PeCoffLoaderLoadImage () return RETURN_INVALID_PARAMETER if the ImageAddress in ImageContext is 0. Adjust some coding style. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@593 6f19259b-4bc3-4df7-8a09-765794883524
266 lines
6.7 KiB
C
266 lines
6.7 KiB
C
/** @file
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Architecture Independent Base Memory Library Implementation.
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Copyright (c) 2006, Intel Corporation<BR>
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All rights reserved. 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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Module Name: MemLibGeneric.c
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The following BaseMemoryLib instances share the same version of this file:
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BaseMemoryLib
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PeiMemoryLib
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UefiMemoryLib
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**/
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#include "MemLibInternals.h"
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/**
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Fills a target buffer with a 16-bit value, and returns the target buffer.
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@param Buffer Pointer to the target buffer to fill.
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@param Length Number of bytes in Buffer to fill.
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@param Value Value with which to fill Length bytes of Buffer.
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@return Buffer
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**/
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VOID *
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EFIAPI
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InternalMemSetMem16 (
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OUT VOID *Buffer,
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IN UINTN Length,
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IN UINT16 Value
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)
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{
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do {
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((UINT16*)Buffer)[--Length] = Value;
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} while (Length != 0);
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return Buffer;
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}
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/**
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Fills a target buffer with a 32-bit value, and returns the target buffer.
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@param Buffer Pointer to the target buffer to fill.
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@param Length Number of bytes in Buffer to fill.
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@param Value Value with which to fill Length bytes of Buffer.
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@return Buffer
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**/
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VOID *
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EFIAPI
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InternalMemSetMem32 (
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OUT VOID *Buffer,
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IN UINTN Length,
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IN UINT32 Value
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)
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{
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do {
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((UINT32*)Buffer)[--Length] = Value;
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} while (Length != 0);
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return Buffer;
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}
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/**
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Fills a target buffer with a 64-bit value, and returns the target buffer.
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@param Buffer Pointer to the target buffer to fill.
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@param Length Number of bytes in Buffer to fill.
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@param Value Value with which to fill Length bytes of Buffer.
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@return Buffer
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**/
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VOID *
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EFIAPI
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InternalMemSetMem64 (
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OUT VOID *Buffer,
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IN UINTN Length,
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IN UINT64 Value
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)
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{
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do {
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((UINT64*)Buffer)[--Length] = Value;
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} while (Length != 0);
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return Buffer;
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}
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/**
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Set Buffer to 0 for Size bytes.
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@param Buffer Memory to set.
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@param Size Number of bytes to set
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@return Buffer
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**/
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VOID *
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EFIAPI
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InternalMemZeroMem (
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OUT VOID *Buffer,
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IN UINTN Length
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)
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{
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return InternalMemSetMem (Buffer, Length, 0);
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}
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/**
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Compares two memory buffers of a given length.
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@param DestinationBuffer First memory buffer
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@param SourceBuffer Second memory buffer
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@param Length Length of DestinationBuffer and SourceBuffer memory
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regions to compare. Must be non-zero.
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@retval 0 if MemOne == MemTwo
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**/
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INTN
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EFIAPI
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InternalMemCompareMem (
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IN CONST VOID *DestinationBuffer,
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IN CONST VOID *SourceBuffer,
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IN UINTN Length
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)
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{
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while ((--Length != 0) &&
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(*(INT8*)DestinationBuffer == *(INT8*)SourceBuffer)) {
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DestinationBuffer = (INT8*)DestinationBuffer + 1;
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SourceBuffer = (INT8*)SourceBuffer + 1;
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}
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return (INTN)*(UINT8*)DestinationBuffer - (INTN)*(UINT8*)SourceBuffer;
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}
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/**
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Scans a target buffer for an 8-bit value, and returns a pointer to the
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matching 8-bit value in the target buffer.
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@param Buffer Pointer to the target buffer to scan.
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@param Length Number of bytes in Buffer to scan. Must be non-zero.
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@param Value Value to search for in the target buffer.
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@return Pointer to the first occurrence or NULL if not found.
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**/
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CONST VOID *
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EFIAPI
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InternalMemScanMem8 (
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IN CONST VOID *Buffer,
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IN UINTN Length,
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IN UINT8 Value
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)
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{
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CONST UINT8 *Pointer;
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ASSERT (Length > 0);
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Pointer = (CONST UINT8*)Buffer;
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do {
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if (*(Pointer++) == Value) {
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return Pointer;
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}
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} while (--Length != 0);
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return NULL;
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}
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/**
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Scans a target buffer for a 16-bit value, and returns a pointer to the
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matching 16-bit value in the target buffer.
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@param Buffer Pointer to the target buffer to scan.
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@param Length Number of bytes in Buffer to scan. Must be non-zero.
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@param Value Value to search for in the target buffer.
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@return Pointer to the first occurrence or NULL if not found.
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**/
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CONST VOID *
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EFIAPI
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InternalMemScanMem16 (
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IN CONST VOID *Buffer,
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IN UINTN Length,
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IN UINT16 Value
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)
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{
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CONST UINT16 *Pointer;
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ASSERT (Length > 0);
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Pointer = (CONST UINT16*)Buffer;
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do {
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if (*(Pointer++) == Value) {
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return Pointer;
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}
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} while (--Length != 0);
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return NULL;
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}
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/**
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Scans a target buffer for a 32-bit value, and returns a pointer to the
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matching 32-bit value in the target buffer.
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@param Buffer Pointer to the target buffer to scan.
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@param Length Number of bytes in Buffer to scan. Must be non-zero.
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@param Value Value to search for in the target buffer.
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@return Pointer to the first occurrence or NULL if not found.
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**/
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CONST VOID *
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EFIAPI
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InternalMemScanMem32 (
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IN CONST VOID *Buffer,
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IN UINTN Length,
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IN UINT32 Value
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)
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{
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CONST UINT32 *Pointer;
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ASSERT (Length > 0);
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Pointer = (CONST UINT32*)Buffer;
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do {
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if (*(Pointer++) == Value) {
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return Pointer;
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}
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} while (--Length != 0);
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return NULL;
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}
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/**
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Scans a target buffer for a 64-bit value, and returns a pointer to the
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matching 64-bit value in the target buffer.
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@param Buffer Pointer to the target buffer to scan.
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@param Length Number of bytes in Buffer to scan. Must be non-zero.
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@param Value Value to search for in the target buffer.
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@return Pointer to the first occurrence or NULL if not found.
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**/
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CONST VOID *
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EFIAPI
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InternalMemScanMem64 (
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IN CONST VOID *Buffer,
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IN UINTN Length,
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IN UINT64 Value
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)
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{
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CONST UINT64 *Pointer;
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ASSERT (Length > 0);
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Pointer = (CONST UINT64*)Buffer;
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do {
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if (*(Pointer++) == Value) {
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return Pointer;
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}
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} while (--Length != 0);
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return NULL;
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}
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