| 1 | /* $Id: VBoxPrintHexDump.c 67350 2017-06-12 17:42:14Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxPrintHex.c - Implementation of the VBoxPrintHex() debug logging routine.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2009-2016 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 |
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| 29 | /*******************************************************************************
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| 30 | * Header Files *
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| 31 | *******************************************************************************/
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| 32 | #include <ctype.h>
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| 33 | #include "VBoxDebugLib.h"
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| 34 | #include "DevEFI.h"
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| 35 | #include "iprt/asm.h"
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| 36 |
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| 37 |
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| 38 | /**
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| 39 | * Prints a char.
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| 40 | * @returns 1.
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| 41 | * @param ch The char to print.
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| 42 | */
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| 43 | DECLINLINE(int) vboxPrintHexDumpChar(int ch)
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| 44 | {
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| 45 | ASMOutU8(EFI_DEBUG_PORT, (uint8_t)ch);
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| 46 | return 1;
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| 47 | }
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| 48 |
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| 49 |
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| 50 | /**
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| 51 | * Prints a hex dump the specified memory block.
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| 52 | *
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| 53 | * @returns Number of bytes printed.
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| 54 | *
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| 55 | * @param pv The memory to dump.
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| 56 | * @param cb Number of bytes to dump.
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| 57 | */
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| 58 | size_t VBoxPrintHexDump(const void *pv, size_t cb)
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| 59 | {
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| 60 | size_t cchPrinted = 0;
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| 61 | uint8_t const *pb = (uint8_t const *)pv;
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| 62 | while (cb > 0)
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| 63 | {
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| 64 | unsigned i;
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| 65 |
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| 66 | /* the offset */
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| 67 | cchPrinted += VBoxPrintHex((uintptr_t)pb, sizeof(pb));
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| 68 | cchPrinted += VBoxPrintString(" ");
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| 69 |
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| 70 | /* the hex bytes value. */
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| 71 | for (i = 0; i < 16; i++)
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| 72 | {
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| 73 | cchPrinted += vboxPrintHexDumpChar(i == 7 ? '-' : ' ');
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| 74 | if (i < cb)
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| 75 | cchPrinted += VBoxPrintHex(pb[i], 1);
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| 76 | else
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| 77 | cchPrinted += VBoxPrintString(" ");
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| 78 | }
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| 79 |
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| 80 | /* the printable chars */
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| 81 | cchPrinted += VBoxPrintString(" ");
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| 82 | for (i = 0; i < 16 && i < cb; i++)
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| 83 | cchPrinted += vboxPrintHexDumpChar(isprint(pb[i])
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| 84 | ? pb[i]
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| 85 | : '.');
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| 86 |
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| 87 | /* finally, the new line. */
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| 88 | cchPrinted += vboxPrintHexDumpChar('\n');
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| 89 |
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| 90 | /*
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| 91 | * Advance.
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| 92 | */
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| 93 | if (cb <= 16)
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| 94 | break;
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| 95 | cb -= 16;
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| 96 | pb += 16;
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| 97 | }
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| 98 |
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| 99 | return cchPrinted;
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| 100 | }
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| 101 |
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