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/* $Id: VBoxPrintHexDump.c $ */
/** @file
* VBoxPrintHex.c - Implementation of the VBoxPrintHex() debug logging routine.
*/
/*
* Copyright (C) 2009-2010 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "VBoxDebugLib.h"
#include "DevEFI.h"
#include <iprt/ctype.h>
/**
* Prints a char.
* @returns 1.
* @param ch The char to print.
*/
DECLINLINE(int) vboxPrintHexDumpChar(int ch)
{
ASMOutU8(EFI_DEBUG_PORT, (uint8_t)ch);
return 1;
}
/**
* Prints a hex dump the specified memory block.
*
* @returns Number of bytes printed.
*
* @param pv The memory to dump.
* @param cb Number of bytes to dump.
*/
size_t VBoxPrintHexDump(const void *pv, size_t cb)
{
size_t cchPrinted = 0;
uint8_t const *pb = (uint8_t const *)pv;
while (cb > 0)
{
unsigned i;
/* the offset */
cchPrinted += VBoxPrintHex((uintptr_t)pb, sizeof(pb));
cchPrinted += VBoxPrintString(" ");
/* the hex bytes value. */
for (i = 0; i < 16; i++)
{
cchPrinted += vboxPrintHexDumpChar(i == 7 ? '-' : ' ');
if (i < cb)
cchPrinted += VBoxPrintHex(pb[i], 1);
else
cchPrinted += VBoxPrintString(" ");
}
/* the printable chars */
cchPrinted += VBoxPrintString(" ");
for (i = 0; i < 16 && i < cb; i++)
cchPrinted += vboxPrintHexDumpChar(pb[i] == ' '
? ' '
: RT_C_IS_GRAPH(pb[i])
? pb[i]
: '.');
/* finally, the new line. */
cchPrinted += vboxPrintHexDumpChar('\n');
/*
* Advance.
*/
if (cb <= 16)
break;
cb -= 16;
pb += 16;
}
return cchPrinted;
}
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