1 /* 2 * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "jvmci/jvmci_globals.hpp" 27 #include "utilities/defaultStream.hpp" 28 #include "runtime/globals_extension.hpp" 29 30 JVMCI_FLAGS(MATERIALIZE_DEVELOPER_FLAG, \ 31 MATERIALIZE_PD_DEVELOPER_FLAG, \ 32 MATERIALIZE_PRODUCT_FLAG, \ 33 MATERIALIZE_PD_PRODUCT_FLAG, \ 34 MATERIALIZE_DIAGNOSTIC_FLAG, \ 35 MATERIALIZE_PD_DIAGNOSTIC_FLAG, \ 36 MATERIALIZE_EXPERIMENTAL_FLAG, \ 37 MATERIALIZE_NOTPRODUCT_FLAG, 38 IGNORE_RANGE, \ 39 IGNORE_CONSTRAINT, \ 40 IGNORE_WRITEABLE) 41 42 #define JVMCI_IGNORE_FLAG_FOUR_PARAM(type, name, value, doc) 43 #define JVMCI_IGNORE_FLAG_THREE_PARAM(type, name, doc) 44 45 // Return true if jvmci flags are consistent. 46 bool JVMCIGlobals::check_jvmci_flags_are_consistent() { 47 if (EnableJVMCI) { 48 return true; 49 } 50 51 // "FLAG_IS_DEFAULT" fail count. 52 int fail_count = 0; 53 // Number of "FLAG_IS_DEFAULT" fails that should be skipped before code 54 // detect real consistency failure. 55 int skip_fail_count; 56 57 // EnableJVMCI flag is false here. 58 // If any other flag is changed, consistency check should fail. 59 // JVMCI_FLAGS macros added below can handle all JVMCI flags automatically. 60 // But it contains check for EnableJVMCI flag too, which is required to be 61 // skipped. This can't be handled easily! 62 // So the code looks for at-least two flag changes to detect consistency 63 // failure when EnableJVMCI flag is changed. 64 // Otherwise one flag change is sufficient to detect consistency failure. 65 // Set skip_fail_count to 0 if EnableJVMCI flag is default. 66 // Set skip_fail_count to 1 if EnableJVMCI flag is changed. 67 // This value will be used to skip fails in macro expanded code later. 68 if (!FLAG_IS_DEFAULT(EnableJVMCI)) { 69 skip_fail_count = 1; 70 } else { 71 skip_fail_count = 0; 72 } 73 74 #define EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(FLAG) \ 75 if (!FLAG_IS_DEFAULT(FLAG)) { \ 76 fail_count++; \ 77 if (fail_count > skip_fail_count) { \ 78 return false; \ 79 } \ 80 } 81 82 #define JVMCI_DIAGNOSTIC_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 83 #define JVMCI_EXPERIMENTAL_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 84 85 // Check consistency of diagnostic flags if UnlockDiagnosticVMOptions is true 86 // or not default. UnlockDiagnosticVMOptions is default true in debug builds. 87 if (UnlockDiagnosticVMOptions || !FLAG_IS_DEFAULT(UnlockDiagnosticVMOptions)) { 88 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 89 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 90 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 91 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 92 JVMCI_DIAGNOSTIC_FLAG_VALUE_CHANGED_CHECK_CODE, \ 93 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 94 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 95 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 96 IGNORE_RANGE, \ 97 IGNORE_CONSTRAINT, \ 98 IGNORE_WRITEABLE) 99 } 100 101 // Check consistency of experimental flags if UnlockExperimentalVMOptions is 102 // true or not default. 103 if (UnlockExperimentalVMOptions || !FLAG_IS_DEFAULT(UnlockExperimentalVMOptions)) { 104 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 105 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 106 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 107 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 108 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 109 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 110 JVMCI_EXPERIMENTAL_FLAG_VALUE_CHANGED_CHECK_CODE, \ 111 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 112 IGNORE_RANGE, \ 113 IGNORE_CONSTRAINT, \ 114 IGNORE_WRITEABLE) 115 } 116 117 #ifndef PRODUCT 118 #define JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 119 #define JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 120 #define JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 121 #else 122 #define JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) 123 #define JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, doc) 124 #define JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) 125 #endif 126 127 #define JVMCI_PD_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 128 #define JVMCI_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name) 129 130 JVMCI_FLAGS(JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE, \ 131 JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE, \ 132 JVMCI_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE, \ 133 JVMCI_PD_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE, \ 134 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 135 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 136 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 137 JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE, \ 138 IGNORE_RANGE, \ 139 IGNORE_CONSTRAINT, \ 140 IGNORE_WRITEABLE) 141 142 #undef EMIT_FLAG_VALUE_CHANGED_CHECK_CODE 143 #undef JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE 144 #undef JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE 145 #undef JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE 146 #undef JVMCI_DIAGNOSTIC_FLAG_VALUE_CHANGED_CHECK_CODE 147 #undef JVMCI_PD_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE 148 #undef JVMCI_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE 149 #undef JVMCI_EXPERIMENTAL_FLAG_VALUE_CHANGED_CHECK_CODE 150 151 #ifndef TIERED 152 // JVMCI is only usable as a jit compiler if the VM supports tiered compilation. 153 #define JVMCI_CHECK_TIERED_ONLY_FLAG(FLAG) \ 154 if (!FLAG_IS_DEFAULT(FLAG)) { \ 155 jio_fprintf(defaultStream::error_stream(), "VM option '%s' cannot be set in non-tiered VM\n", #FLAG); \ 156 return false; \ 157 } 158 JVMCI_CHECK_TIERED_ONLY_FLAG(UseJVMCICompiler) 159 JVMCI_CHECK_TIERED_ONLY_FLAG(BootstrapJVMCI) 160 JVMCI_CHECK_TIERED_ONLY_FLAG(PrintBootstrap) 161 JVMCI_CHECK_TIERED_ONLY_FLAG(JVMCIThreads) 162 JVMCI_CHECK_TIERED_ONLY_FLAG(JVMCIHostThreads) 163 JVMCI_CHECK_TIERED_ONLY_FLAG(JVMCICountersExcludeCompiler) 164 #undef JVMCI_CHECK_TIERED_ONLY_FLAG 165 #endif 166 167 return true; 168 } 169 170 // Print jvmci arguments inconsistency error message. 171 void JVMCIGlobals::print_jvmci_args_inconsistency_error_message() { 172 const char* error_msg = "Improperly specified VM option '%s'\n"; 173 jio_fprintf(defaultStream::error_stream(), "EnableJVMCI must be enabled\n"); 174 175 #define EMIT_CHECK_PRINT_ERR_MSG_CODE(FLAG) \ 176 if (!FLAG_IS_DEFAULT(FLAG)) { \ 177 if (strcmp(#FLAG, "EnableJVMCI")) { \ 178 jio_fprintf(defaultStream::error_stream(), error_msg, #FLAG); \ 179 } \ 180 } 181 182 #define JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 183 #define JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 184 185 if (UnlockDiagnosticVMOptions || !FLAG_IS_DEFAULT(UnlockDiagnosticVMOptions)) { 186 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 187 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 188 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 189 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 190 JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 191 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 192 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 193 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 194 IGNORE_RANGE, \ 195 IGNORE_CONSTRAINT, \ 196 IGNORE_WRITEABLE) 197 } 198 199 if (UnlockExperimentalVMOptions || !FLAG_IS_DEFAULT(UnlockExperimentalVMOptions)) { 200 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 201 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 202 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 203 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 204 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 205 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 206 JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 207 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 208 IGNORE_RANGE, \ 209 IGNORE_CONSTRAINT, \ 210 IGNORE_WRITEABLE) 211 } 212 213 #ifndef PRODUCT 214 #define JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 215 #define JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 216 #define JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 217 #else 218 #define JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) 219 #define JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) 220 #define JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) 221 #endif 222 223 #define JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 224 #define JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name) 225 226 JVMCI_FLAGS(JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 227 JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 228 JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 229 JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 230 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 231 JVMCI_IGNORE_FLAG_THREE_PARAM, \ 232 JVMCI_IGNORE_FLAG_FOUR_PARAM, \ 233 JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \ 234 IGNORE_RANGE, \ 235 IGNORE_CONSTRAINT, \ 236 IGNORE_WRITEABLE) 237 238 #undef EMIT_CHECK_PRINT_ERR_MSG_CODE 239 #undef JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE 240 #undef JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE 241 #undef JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE 242 #undef JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE 243 #undef JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE 244 #undef JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE 245 #undef JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE 246 247 } 248 249 #undef JVMCI_IGNORE_FLAG_FOUR_PARAM 250 #undef JVMCI_IGNORE_FLAG_THREE_PARAM