1 /*
2 * Copyright (c) 2000, 2015, 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_EXPERIMENTAL_FLAG, \
36 MATERIALIZE_NOTPRODUCT_FLAG,
37 IGNORE_RANGE, \
38 IGNORE_CONSTRAINT)
39
40 #define JVMCI_IGNORE_FLAG_FOUR_PARAM(type, name, value, doc)
41 #define JVMCI_IGNORE_FLAG_THREE_PARAM(type, name, doc)
42
43 // Return true if jvmci flags are consistent.
44 bool JVMCIGlobals::check_jvmci_flags_are_consistent() {
45 if (EnableJVMCI) {
46 return true;
47 }
48
49 // "FLAG_IS_DEFAULT" fail count.
50 int fail_count = 0;
51 // Number of "FLAG_IS_DEFAULT" fails that should be skipped before code
52 // detect real consistency failure.
53 int skip_fail_count;
54
55 // EnableJVMCI flag is false here.
56 // If any other flag is changed, consistency check should fail.
57 // JVMCI_FLAGS macros added below can handle all JVMCI flags automatically.
58 // But it contains check for EnableJVMCI flag too, which is required to be
59 // skipped. This can't be handled easily!
60 // So the code looks for at-least two flag changes to detect consistency
61 // failure when EnableJVMCI flag is changed.
62 // Otherwise one flag change is sufficient to detect consistency failure.
63 // Set skip_fail_count to 0 if EnableJVMCI flag is default.
64 // Set skip_fail_count to 1 if EnableJVMCI flag is changed.
65 // This value will be used to skip fails in macro expanded code later.
66 if (!FLAG_IS_DEFAULT(EnableJVMCI)) {
67 skip_fail_count = 1;
68 } else {
69 skip_fail_count = 0;
70 }
71
72 #define EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(FLAG) \
73 if (!FLAG_IS_DEFAULT(FLAG)) { \
74 fail_count++; \
75 if (fail_count > skip_fail_count) { \
76 return false; \
77 } \
78 }
79
80 #define JVMCI_DIAGNOSTIC_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
81 #define JVMCI_EXPERIMENTAL_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
82
83 // Check consistency of diagnostic flags if UnlockDiagnosticVMOptions is true
84 // or not default. UnlockDiagnosticVMOptions is default true in debug builds.
85 if (UnlockDiagnosticVMOptions || !FLAG_IS_DEFAULT(UnlockDiagnosticVMOptions)) {
86 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \
87 JVMCI_IGNORE_FLAG_THREE_PARAM, \
88 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
89 JVMCI_IGNORE_FLAG_THREE_PARAM, \
90 JVMCI_DIAGNOSTIC_FLAG_VALUE_CHANGED_CHECK_CODE, \
91 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
92 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
93 IGNORE_RANGE, \
94 IGNORE_CONSTRAINT)
95 }
96
97 // Check consistency of experimental flags if UnlockExperimentalVMOptions is
98 // true or not default.
99 if (UnlockExperimentalVMOptions || !FLAG_IS_DEFAULT(UnlockExperimentalVMOptions)) {
100 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \
101 JVMCI_IGNORE_FLAG_THREE_PARAM, \
102 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
103 JVMCI_IGNORE_FLAG_THREE_PARAM, \
104 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
105 JVMCI_EXPERIMENTAL_FLAG_VALUE_CHANGED_CHECK_CODE, \
106 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
107 IGNORE_RANGE, \
108 IGNORE_CONSTRAINT)
109 }
110
111 #ifndef PRODUCT
112 #define JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
113 #define JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
114 #define JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
115 #else
116 #define JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc)
117 #define JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, doc)
118 #define JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc)
119 #endif
120
121 #define JVMCI_PD_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
122 #define JVMCI_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE(type, name, value, doc) EMIT_FLAG_VALUE_CHANGED_CHECK_CODE(name)
123
124 JVMCI_FLAGS(JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE, \
125 JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE, \
126 JVMCI_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE, \
127 JVMCI_PD_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE, \
128 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
129 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
130 JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE, \
131 IGNORE_RANGE, \
132 IGNORE_CONSTRAINT)
133
134 #undef EMIT_FLAG_VALUE_CHANGED_CHECK_CODE
135 #undef JVMCI_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE
136 #undef JVMCI_PD_DEVELOP_FLAG_VALUE_CHANGED_CHECK_CODE
137 #undef JVMCI_NOTPRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE
138 #undef JVMCI_DIAGNOSTIC_FLAG_VALUE_CHANGED_CHECK_CODE
139 #undef JVMCI_PD_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE
140 #undef JVMCI_PRODUCT_FLAG_VALUE_CHANGED_CHECK_CODE
141 #undef JVMCI_EXPERIMENTAL_FLAG_VALUE_CHANGED_CHECK_CODE
142
143 return true;
144 }
145
146 // Print jvmci arguments inconsistency error message.
147 void JVMCIGlobals::print_jvmci_args_inconsistency_error_message() {
148 const char* error_msg = "Improperly specified VM option '%s'\n";
149 jio_fprintf(defaultStream::error_stream(), "EnableJVMCI must be enabled\n");
150
151 #define EMIT_CHECK_PRINT_ERR_MSG_CODE(FLAG) \
152 if (!FLAG_IS_DEFAULT(FLAG)) { \
153 if (strcmp(#FLAG, "EnableJVMCI")) { \
154 jio_fprintf(defaultStream::error_stream(), error_msg, #FLAG); \
155 } \
156 }
157
158 #define JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
159 #define JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
160
161 if (UnlockDiagnosticVMOptions || !FLAG_IS_DEFAULT(UnlockDiagnosticVMOptions)) {
162 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \
163 JVMCI_IGNORE_FLAG_THREE_PARAM, \
164 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
165 JVMCI_IGNORE_FLAG_THREE_PARAM, \
166 JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
167 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
168 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
169 IGNORE_RANGE, \
170 IGNORE_CONSTRAINT)
171 }
172
173 if (UnlockExperimentalVMOptions || !FLAG_IS_DEFAULT(UnlockExperimentalVMOptions)) {
174 JVMCI_FLAGS(JVMCI_IGNORE_FLAG_FOUR_PARAM, \
175 JVMCI_IGNORE_FLAG_THREE_PARAM, \
176 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
177 JVMCI_IGNORE_FLAG_THREE_PARAM, \
178 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
179 JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
180 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
181 IGNORE_RANGE, \
182 IGNORE_CONSTRAINT)
183 }
184
185 #ifndef PRODUCT
186 #define JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
187 #define JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
188 #define JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
189 #else
190 #define JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc)
191 #define JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc)
192 #define JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc)
193 #endif
194
195 #define JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
196 #define JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE(type, name, value, doc) EMIT_CHECK_PRINT_ERR_MSG_CODE(name)
197
198 JVMCI_FLAGS(JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
199 JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
200 JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
201 JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
202 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
203 JVMCI_IGNORE_FLAG_FOUR_PARAM, \
204 JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE, \
205 IGNORE_RANGE, \
206 IGNORE_CONSTRAINT)
207
208 #undef EMIT_CHECK_PRINT_ERR_MSG_CODE
209 #undef JVMCI_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE
210 #undef JVMCI_PD_DEVELOP_FLAG_CHECK_PRINT_ERR_MSG_CODE
211 #undef JVMCI_NOTPRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE
212 #undef JVMCI_PD_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE
213 #undef JVMCI_PRODUCT_FLAG_CHECK_PRINT_ERR_MSG_CODE
214 #undef JVMCI_DIAGNOSTIC_FLAG_CHECK_PRINT_ERR_MSG_CODE
215 #undef JVMCI_EXPERIMENTAL_FLAG_CHECK_PRINT_ERR_MSG_CODE
216
217 }
218
219 #undef JVMCI_IGNORE_FLAG_FOUR_PARAM
220 #undef JVMCI_IGNORE_FLAG_THREE_PARAM