| 1 | /* $Id: bs3-cmn-TestPrintf.c 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * BS3Kit - BS3TestPrintf, BS3TestPrintfV
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007-2019 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 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include "bs3kit-template-header.h"
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| 32 | #include "bs3-cmn-test.h"
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| 33 |
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| 34 | #include <iprt/asm-amd64-x86.h>
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| 35 |
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| 36 |
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| 37 | /*********************************************************************************************************************************
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| 38 | * Defined Constants And Macros *
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| 39 | *********************************************************************************************************************************/
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| 40 | #define SMALL_BUFFER 1
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| 41 |
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| 42 |
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| 43 | /*********************************************************************************************************************************
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| 44 | * Structures and Typedefs *
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| 45 | *********************************************************************************************************************************/
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| 46 | /** Output buffering for Bs3TestPrintfV. */
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| 47 | typedef struct BS3TESTPRINTBUF
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| 48 | {
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| 49 | bool fNewCmd;
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| 50 | #if SMALL_BUFFER
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| 51 | uint8_t cchBuf;
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| 52 | char achBuf[78];
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| 53 | #else
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| 54 | uint16_t cchBuf;
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| 55 | char achBuf[512];
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| 56 | #endif
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| 57 | } BS3TESTPRINTBUF;
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| 58 |
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| 59 |
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| 60 | /**
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| 61 | * @callback_method_impl{FNBS3STRFORMATOUTPUT, Prints to screen and VMMDev}
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| 62 | */
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| 63 | static BS3_DECL_CALLBACK(size_t) bs3TestPrintfStrOutput(char ch, void BS3_FAR *pvUser)
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| 64 | {
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| 65 | BS3TESTPRINTBUF BS3_FAR *pBuf = (BS3TESTPRINTBUF BS3_FAR *)pvUser;
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| 66 |
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| 67 | /*
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| 68 | * VMMDev first. We do line by line processing to avoid running out of
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| 69 | * string buffer on the host side.
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| 70 | */
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| 71 | if (g_fbBs3VMMDevTesting)
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| 72 | {
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| 73 | if (ch != '\n' && !pBuf->fNewCmd)
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| 74 | ASMOutU8(VMMDEV_TESTING_IOPORT_DATA, ch);
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| 75 | else if (ch != '\0')
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| 76 | {
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| 77 | if (pBuf->fNewCmd)
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| 78 | {
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| 79 | #if ARCH_BITS == 16
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| 80 | ASMOutU16(VMMDEV_TESTING_IOPORT_CMD, (uint16_t)VMMDEV_TESTING_CMD_PRINT);
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| 81 | #else
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| 82 | ASMOutU32(VMMDEV_TESTING_IOPORT_CMD, VMMDEV_TESTING_CMD_PRINT);
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| 83 | #endif
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| 84 | pBuf->fNewCmd = false;
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| 85 | }
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| 86 | ASMOutU8(VMMDEV_TESTING_IOPORT_DATA, ch);
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| 87 | if (ch == '\n')
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| 88 | {
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| 89 | ASMOutU8(VMMDEV_TESTING_IOPORT_DATA, '\0');
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| 90 | pBuf->fNewCmd = true;
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| 91 | }
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| 92 | }
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| 93 | }
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| 94 |
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| 95 | /*
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| 96 | * Console next.
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| 97 | */
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| 98 | if (ch != '\0')
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| 99 | {
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| 100 | BS3_ASSERT(pBuf->cchBuf < RT_ELEMENTS(pBuf->achBuf));
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| 101 | pBuf->achBuf[pBuf->cchBuf++] = ch;
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| 102 |
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| 103 | /* Whether to flush the buffer. We do line flushing here to avoid
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| 104 | dropping too much info when the formatter crashes on bad input. */
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| 105 | if ( pBuf->cchBuf < RT_ELEMENTS(pBuf->achBuf)
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| 106 | && (!SMALL_BUFFER || ch != '\n') )
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| 107 | return 1;
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| 108 | }
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| 109 | BS3_ASSERT(pBuf->cchBuf <= RT_ELEMENTS(pBuf->achBuf));
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| 110 | Bs3PrintStrN(&pBuf->achBuf[0], pBuf->cchBuf);
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| 111 | pBuf->cchBuf = 0;
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| 112 | return ch != '\0';
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| 113 | }
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| 114 |
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| 115 |
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| 116 |
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| 117 | #undef Bs3TestPrintfV
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| 118 | BS3_CMN_DEF(void, Bs3TestPrintfV,(const char BS3_FAR *pszFormat, va_list BS3_FAR va))
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| 119 | {
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| 120 | BS3TESTPRINTBUF Buf;
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| 121 | Buf.fNewCmd = true;
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| 122 | Buf.cchBuf = 0;
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| 123 | Bs3StrFormatV(pszFormat, va, bs3TestPrintfStrOutput, &Buf);
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| 124 | }
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| 125 |
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| 126 |
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| 127 |
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| 128 | #undef Bs3TestPrintf
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| 129 | BS3_CMN_DEF(void, Bs3TestPrintf,(const char BS3_FAR *pszFormat, ...))
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| 130 | {
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| 131 | va_list va;
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| 132 | va_start(va, pszFormat);
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| 133 | BS3_CMN_NM(Bs3TestPrintfV)(pszFormat, va);
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| 134 | va_end(va);
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| 135 | }
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| 136 |
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