1 | /* $Id: DBGFLog.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * DBGF - Debugger Facility, Log Manager.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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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 | #define LOG_GROUP LOG_GROUP_DBGF
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33 | #include <VBox/vmm/vmapi.h>
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34 | #include <VBox/vmm/vmm.h>
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35 | #include <VBox/vmm/dbgf.h>
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36 | #include <VBox/vmm/uvm.h>
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37 | #include <VBox/vmm/vm.h>
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38 | #include <VBox/log.h>
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39 | #include <VBox/err.h>
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40 | #include <iprt/assert.h>
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41 | #include <iprt/param.h>
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42 | #include <iprt/string.h>
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43 |
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44 |
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45 | /**
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46 | * Checkes for logger prefixes and selects the right logger.
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47 | *
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48 | * @returns Target logger.
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49 | * @param ppsz Pointer to the string pointer.
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50 | */
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51 | static PRTLOGGER dbgfR3LogResolvedLogger(const char **ppsz)
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52 | {
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53 | PRTLOGGER pLogger;
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54 | const char *psz = *ppsz;
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55 | if (!strncmp(psz, RT_STR_TUPLE("release:")))
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56 | {
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57 | *ppsz += sizeof("release:") - 1;
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58 | pLogger = RTLogRelGetDefaultInstance();
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59 | }
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60 | else
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61 | {
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62 | if (!strncmp(psz, RT_STR_TUPLE("debug:")))
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63 | *ppsz += sizeof("debug:") - 1;
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64 | pLogger = RTLogDefaultInstance();
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65 | }
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66 | return pLogger;
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67 | }
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68 |
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69 |
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70 | /**
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71 | * EMT worker for DBGFR3LogModifyGroups.
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72 | *
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73 | * @returns VBox status code.
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74 | * @param pUVM The user mode VM handle.
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75 | * @param pszGroupSettings The group settings string. (VBOX_LOG)
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76 | */
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77 | static DECLCALLBACK(int) dbgfR3LogModifyGroups(PUVM pUVM, const char *pszGroupSettings)
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78 | {
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79 | PRTLOGGER pLogger = dbgfR3LogResolvedLogger(&pszGroupSettings);
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80 | if (!pLogger)
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81 | return VINF_SUCCESS;
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82 |
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83 | int rc = RTLogGroupSettings(pLogger, pszGroupSettings);
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84 | if (RT_SUCCESS(rc) && pUVM->pVM)
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85 | {
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86 | VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
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87 | rc = VMMR3UpdateLoggers(pUVM->pVM);
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88 | }
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89 | return rc;
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90 | }
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91 |
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92 |
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93 | /**
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94 | * Changes the logger group settings.
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95 | *
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96 | * @returns VBox status code.
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97 | * @param pUVM The user mode VM handle.
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98 | * @param pszGroupSettings The group settings string. (VBOX_LOG)
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99 | * By prefixing the string with \"release:\" the
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100 | * changes will be applied to the release log
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101 | * instead of the debug log. The prefix \"debug:\"
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102 | * is also recognized.
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103 | */
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104 | VMMR3DECL(int) DBGFR3LogModifyGroups(PUVM pUVM, const char *pszGroupSettings)
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105 | {
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106 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
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107 | AssertPtrReturn(pszGroupSettings, VERR_INVALID_POINTER);
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108 |
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109 | return VMR3ReqPriorityCallWaitU(pUVM, VMCPUID_ANY, (PFNRT)dbgfR3LogModifyGroups, 2, pUVM, pszGroupSettings);
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110 | }
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111 |
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112 |
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113 | /**
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114 | * EMT worker for DBGFR3LogModifyFlags.
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115 | *
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116 | * @returns VBox status code.
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117 | * @param pUVM The user mode VM handle.
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118 | * @param pszFlagSettings The group settings string. (VBOX_LOG_FLAGS)
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119 | */
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120 | static DECLCALLBACK(int) dbgfR3LogModifyFlags(PUVM pUVM, const char *pszFlagSettings)
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121 | {
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122 | PRTLOGGER pLogger = dbgfR3LogResolvedLogger(&pszFlagSettings);
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123 | if (!pLogger)
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124 | return VINF_SUCCESS;
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125 |
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126 | int rc = RTLogFlags(pLogger, pszFlagSettings);
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127 | if (RT_SUCCESS(rc) && pUVM->pVM)
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128 | {
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129 | VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
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130 | rc = VMMR3UpdateLoggers(pUVM->pVM);
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131 | }
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132 | return rc;
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133 | }
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134 |
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135 |
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136 | /**
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137 | * Changes the logger flag settings.
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138 | *
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139 | * @returns VBox status code.
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140 | * @param pUVM The user mode VM handle.
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141 | * @param pszFlagSettings The group settings string. (VBOX_LOG_FLAGS)
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142 | * By prefixing the string with \"release:\" the
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143 | * changes will be applied to the release log
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144 | * instead of the debug log. The prefix \"debug:\"
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145 | * is also recognized.
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146 | */
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147 | VMMR3DECL(int) DBGFR3LogModifyFlags(PUVM pUVM, const char *pszFlagSettings)
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148 | {
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149 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
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150 | AssertPtrReturn(pszFlagSettings, VERR_INVALID_POINTER);
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151 |
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152 | return VMR3ReqPriorityCallWaitU(pUVM, VMCPUID_ANY, (PFNRT)dbgfR3LogModifyFlags, 2, pUVM, pszFlagSettings);
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153 | }
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154 |
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155 |
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156 | /**
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157 | * EMT worker for DBGFR3LogModifyFlags.
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158 | *
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159 | * @returns VBox status code.
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160 | * @param pUVM The user mode VM handle.
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161 | * @param pszDestSettings The destination settings string. (VBOX_LOG_DEST)
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162 | */
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163 | static DECLCALLBACK(int) dbgfR3LogModifyDestinations(PUVM pUVM, const char *pszDestSettings)
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164 | {
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165 | PRTLOGGER pLogger = dbgfR3LogResolvedLogger(&pszDestSettings);
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166 | if (!pLogger)
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167 | return VINF_SUCCESS;
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168 |
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169 | int rc = RTLogDestinations(NULL, pszDestSettings);
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170 | if (RT_SUCCESS(rc) && pUVM->pVM)
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171 | {
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172 | VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
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173 | rc = VMMR3UpdateLoggers(pUVM->pVM);
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174 | }
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175 | return rc;
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176 | }
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177 |
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178 |
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179 | /**
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180 | * Changes the logger destination settings.
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181 | *
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182 | * @returns VBox status code.
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183 | * @param pUVM The user mode VM handle.
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184 | * @param pszDestSettings The destination settings string. (VBOX_LOG_DEST)
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185 | * By prefixing the string with \"release:\" the
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186 | * changes will be applied to the release log
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187 | * instead of the debug log. The prefix \"debug:\"
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188 | * is also recognized.
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189 | */
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190 | VMMR3DECL(int) DBGFR3LogModifyDestinations(PUVM pUVM, const char *pszDestSettings)
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191 | {
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192 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
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193 | AssertPtrReturn(pszDestSettings, VERR_INVALID_POINTER);
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194 |
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195 | return VMR3ReqPriorityCallWaitU(pUVM, VMCPUID_ANY, (PFNRT)dbgfR3LogModifyDestinations, 2, pUVM, pszDestSettings);
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196 | }
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197 |
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