ArmPkg: Moved ARMv7 specific files to a 'Arm' subdirectory
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14180 6f19259b-4bc3-4df7-8a09-765794883524
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ArmPkg/Library/SemihostLib/SemihostLib.c
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219
ArmPkg/Library/SemihostLib/SemihostLib.c
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/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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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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#include <Base.h>
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#include <Library/BaseLib.h>
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#include <Library/SemihostLib.h>
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#include "SemihostPrivate.h"
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BOOLEAN
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SemihostConnectionSupported (
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VOID
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)
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{
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return SEMIHOST_SUPPORTED;
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}
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RETURN_STATUS
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SemihostFileOpen (
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IN CHAR8 *FileName,
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IN UINT32 Mode,
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OUT UINT32 *FileHandle
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)
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{
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SEMIHOST_FILE_OPEN_BLOCK OpenBlock;
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INT32 Result;
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if (FileHandle == NULL) {
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return RETURN_INVALID_PARAMETER;
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}
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OpenBlock.FileName = FileName;
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OpenBlock.Mode = Mode;
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OpenBlock.NameLength = AsciiStrLen(FileName);
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Result = Semihost_SYS_OPEN(&OpenBlock);
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if (Result == -1) {
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return RETURN_NOT_FOUND;
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} else {
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*FileHandle = Result;
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return RETURN_SUCCESS;
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}
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}
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RETURN_STATUS
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SemihostFileSeek (
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IN UINT32 FileHandle,
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IN UINT32 Offset
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)
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{
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SEMIHOST_FILE_SEEK_BLOCK SeekBlock;
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INT32 Result;
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SeekBlock.Handle = FileHandle;
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SeekBlock.Location = Offset;
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Result = Semihost_SYS_SEEK(&SeekBlock);
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if (Result == 0) {
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return RETURN_SUCCESS;
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} else {
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return RETURN_ABORTED;
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}
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}
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RETURN_STATUS
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SemihostFileRead (
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IN UINT32 FileHandle,
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IN OUT UINT32 *Length,
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OUT VOID *Buffer
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)
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{
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SEMIHOST_FILE_READ_WRITE_BLOCK ReadBlock;
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UINT32 Result;
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if ((Length == NULL) || (Buffer == NULL)) {
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return RETURN_INVALID_PARAMETER;
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}
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ReadBlock.Handle = FileHandle;
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ReadBlock.Buffer = Buffer;
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ReadBlock.Length = *Length;
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Result = Semihost_SYS_READ(&ReadBlock);
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if (Result == *Length) {
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return RETURN_ABORTED;
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} else {
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*Length -= Result;
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return RETURN_SUCCESS;
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}
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}
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RETURN_STATUS
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SemihostFileWrite (
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IN UINT32 FileHandle,
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IN OUT UINT32 *Length,
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IN VOID *Buffer
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)
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{
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SEMIHOST_FILE_READ_WRITE_BLOCK WriteBlock;
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if ((Length == NULL) || (Buffer == NULL)) {
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return RETURN_INVALID_PARAMETER;
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}
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WriteBlock.Handle = FileHandle;
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WriteBlock.Buffer = Buffer;
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WriteBlock.Length = *Length;
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*Length = Semihost_SYS_WRITE(&WriteBlock);
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return RETURN_SUCCESS;
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}
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RETURN_STATUS
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SemihostFileClose (
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IN UINT32 FileHandle
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)
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{
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INT32 Result = Semihost_SYS_CLOSE(&FileHandle);
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if (Result == -1) {
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return RETURN_INVALID_PARAMETER;
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} else {
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return RETURN_SUCCESS;
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}
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}
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RETURN_STATUS
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SemihostFileLength (
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IN UINT32 FileHandle,
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OUT UINT32 *Length
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)
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{
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INT32 Result;
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if (Length == NULL) {
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return RETURN_INVALID_PARAMETER;
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}
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Result = Semihost_SYS_FLEN(&FileHandle);
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if (Result == -1) {
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return RETURN_ABORTED;
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} else {
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*Length = Result;
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return RETURN_SUCCESS;
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}
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}
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RETURN_STATUS
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SemihostFileRemove (
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IN CHAR8 *FileName
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)
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{
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SEMIHOST_FILE_REMOVE_BLOCK RemoveBlock;
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UINT32 Result;
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RemoveBlock.FileName = FileName;
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RemoveBlock.NameLength = AsciiStrLen(FileName);
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Result = Semihost_SYS_REMOVE(&RemoveBlock);
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if (Result == 0) {
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return RETURN_SUCCESS;
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} else {
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return RETURN_ABORTED;
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}
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}
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CHAR8
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SemihostReadCharacter (
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VOID
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)
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{
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return Semihost_SYS_READC();
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}
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VOID
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SemihostWriteCharacter (
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IN CHAR8 Character
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)
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{
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Semihost_SYS_WRITEC(&Character);
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}
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VOID
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SemihostWriteString (
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IN CHAR8 *String
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)
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{
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Semihost_SYS_WRITE0(String);
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}
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UINT32
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SemihostSystem (
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IN CHAR8 *CommandLine
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)
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{
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SEMIHOST_SYSTEM_BLOCK SystemBlock;
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SystemBlock.CommandLine = CommandLine;
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SystemBlock.CommandLength = AsciiStrLen(CommandLine);
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return Semihost_SYS_SYSTEM(&SystemBlock);
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}
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