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 return true;
152 }
153
154 // Print jvmci arguments inconsistency error message.
155 void JVMCIGlobals::print_jvmci_args_inconsistency_error_message() {
156 const char* error_msg = "Improperly specified VM option '%s'\n";
157 jio_fprintf(defaultStream::error_stream(), "EnableJVMCI must be enabled\n");
158
159 #define EMIT_CHECK_PRINT_ERR_MSG_CODE(FLAG) \
160 if (!FLAG_IS_DEFAULT(FLAG)) { \
161 if (strcmp(#FLAG, "EnableJVMCI")) { \
162 jio_fprintf(defaultStream::error_stream(), error_msg, #FLAG); \
163 } \
164 }
165
166 #define JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
167 #define JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
168
169 if (UnlockDiagnosticVMOptions || !FLAG_IS_DEFAULT(UnlockDiagnosticVMOptions)) {
170 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \
171 JVMCI_IGNORE_FLAG_THREE_PARAM, \
172 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
173 JVMCI_IGNORE_FLAG_THREE_PARAM, \
174 JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
175 JVMCI_IGNORE_FLAG_THREE_PARAM, \
176 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
177 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
178 IGNORE_RANGE, \
179 IGNORE_CONSTRAINT, \
180 IGNORE_WRITEABLE)
181 }
182
183 if (UnlockExperimentalVMOptions || !FLAG_IS_DEFAULT(UnlockExperimentalVMOptions)) {
184 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \
185 JVMCI_IGNORE_FLAG_THREE_PARAM, \
186 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_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
191 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
192 IGNORE_RANGE, \
193 IGNORE_CONSTRAINT, \
194 IGNORE_WRITEABLE)
195 }
196
197 #ifndef PRODUCT
198 #define JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
199 #define JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
200 #define JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
201 #else
202 #define JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc)
203 #define JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc)
204 #define JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc)
205 #endif
206
207 #define JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
208 #define JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
209
210 JVMCI_FLAGS(JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
211 JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
212 JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
213 JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
214 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
215 JVMCI_IGNORE_FLAG_THREE_PARAM, \
216 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
217 JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
218 IGNORE_RANGE, \
219 IGNORE_CONSTRAINT, \
220 IGNORE_WRITEABLE)
221
222 #undef EMIT_CHECK_PRINT_ERR_MSG_CODE
223 #undef JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE
224 #undef JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE
225 #undef JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE
226 #undef JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE
227 #undef JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE
228 #undef JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE
229 #undef JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE
230
231 }
232
233 #undef JVMCI_IGNORE_FLAG_FOUR_PARAM
234 #undef JVMCI_IGNORE_FLAG_THREE_PARAM