1 /*
2 * Copyright (c) 2015, 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 "runtime/flags/jvmFlagWriteableList.hpp"
27 #include "runtime/os.hpp"
28 #ifdef COMPILER1
29 #include "c1/c1_globals.hpp"
30 #endif // COMPILER1
31 #ifdef COMPILER2
32 #include "opto/c2_globals.hpp"
33 #endif // COMPILER2
34 #if INCLUDE_JVMCI
35 #include "jvmci/jvmci_globals.hpp"
36 #endif
37
38 bool JVMFlagWriteable::is_writeable(void) {
39 return _writeable;
40 }
41
42 void JVMFlagWriteable::mark_once(void) {
43 if (_type == Once) {
44 _writeable = false;
45 }
46 }
47
48 void JVMFlagWriteable::mark_startup(void) {
49 if (_type == JVMFlagWriteable::CommandLineOnly) {
50 _writeable = false;
51 }
52 }
53
54 // No control emitting
55 void emit_writeable_no(...) { /* NOP */ }
56
57 // No control emitting if type argument is NOT provided
58 void emit_writeable_bool(const char* /*name*/) { /* NOP */ }
59 void emit_writeable_ccstr(const char* /*name*/) { /* NOP */ }
60 void emit_writeable_ccstrlist(const char* /*name*/) { /* NOP */ }
61 void emit_writeable_int(const char* /*name*/) { /* NOP */ }
62 void emit_writeable_intx(const char* /*name*/) { /* NOP */ }
63 void emit_writeable_uint(const char* /*name*/) { /* NOP */ }
64 void emit_writeable_uintx(const char* /*name*/) { /* NOP */ }
65 void emit_writeable_uint64_t(const char* /*name*/) { /* NOP */ }
66 void emit_writeable_size_t(const char* /*name*/) { /* NOP */ }
67 void emit_writeable_double(const char* /*name*/) { /* NOP */ }
68
69 // JVMFlagWriteable emitting code functions if range arguments are provided
70 void emit_writeable_bool(const char* name, JVMFlagWriteable::WriteableType type) {
71 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
72 }
73 void emit_writeable_int(const char* name, JVMFlagWriteable::WriteableType type) {
74 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
75 }
76 void emit_writeable_intx(const char* name, JVMFlagWriteable::WriteableType type) {
77 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
78 }
79 void emit_writeable_uint(const char* name, JVMFlagWriteable::WriteableType type) {
80 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
81 }
82 void emit_writeable_uintx(const char* name, JVMFlagWriteable::WriteableType type) {
83 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
84 }
85 void emit_writeable_uint64_t(const char* name, JVMFlagWriteable::WriteableType type) {
86 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
87 }
88 void emit_writeable_size_t(const char* name, JVMFlagWriteable::WriteableType type) {
89 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
90 }
91 void emit_writeable_double(const char* name, JVMFlagWriteable::WriteableType type) {
92 JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
93 }
94
95 // Generate code to call emit_writeable_xxx function
96 #define EMIT_WRITEABLE_PRODUCT_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
97 #define EMIT_WRITEABLE_COMMERCIAL_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
98 #define EMIT_WRITEABLE_DIAGNOSTIC_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
99 #define EMIT_WRITEABLE_EXPERIMENTAL_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
100 #define EMIT_WRITEABLE_MANAGEABLE_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
101 #define EMIT_WRITEABLE_PRODUCT_RW_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
102 #define EMIT_WRITEABLE_PD_PRODUCT_FLAG(type, name, doc) ); emit_writeable_##type(#name
103 #define EMIT_WRITEABLE_DEVELOPER_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
104 #define EMIT_WRITEABLE_PD_DEVELOPER_FLAG(type, name, doc) ); emit_writeable_##type(#name
105 #define EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG(type, name, doc) ); emit_writeable_##type(#name
106 #define EMIT_WRITEABLE_NOTPRODUCT_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
107 #define EMIT_WRITEABLE_LP64_PRODUCT_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
108
109 // Generate type argument to pass into emit_writeable_xxx functions
110 #define EMIT_WRITEABLE(a) , JVMFlagWriteable::a
111
112 #define INITIAL_WRITEABLES_SIZE 2
113 GrowableArray<JVMFlagWriteable*>* JVMFlagWriteableList::_controls = NULL;
114
115 void JVMFlagWriteableList::init(void) {
116
117 _controls = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<JVMFlagWriteable*>(INITIAL_WRITEABLES_SIZE, true);
118
119 emit_writeable_no(NULL VM_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
120 EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
121 EMIT_WRITEABLE_PRODUCT_FLAG,
122 EMIT_WRITEABLE_PD_PRODUCT_FLAG,
123 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
124 EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
125 EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
126 EMIT_WRITEABLE_NOTPRODUCT_FLAG,
127 EMIT_WRITEABLE_MANAGEABLE_FLAG,
128 EMIT_WRITEABLE_PRODUCT_RW_FLAG,
129 EMIT_WRITEABLE_LP64_PRODUCT_FLAG,
130 IGNORE_RANGE,
131 IGNORE_CONSTRAINT,
132 EMIT_WRITEABLE));
133
134 EMIT_WRITEABLES_FOR_GLOBALS_EXT
135
136 emit_writeable_no(NULL ARCH_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
137 EMIT_WRITEABLE_PRODUCT_FLAG,
138 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
139 EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
140 EMIT_WRITEABLE_NOTPRODUCT_FLAG,
141 IGNORE_RANGE,
142 IGNORE_CONSTRAINT,
143 EMIT_WRITEABLE));
144
145 #if INCLUDE_JVMCI
146 emit_writeable_no(NULL JVMCI_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
147 EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
148 EMIT_WRITEABLE_PRODUCT_FLAG,
149 EMIT_WRITEABLE_PD_PRODUCT_FLAG,
150 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
151 EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
152 EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
153 EMIT_WRITEABLE_NOTPRODUCT_FLAG,
154 IGNORE_RANGE,
155 IGNORE_CONSTRAINT,
156 EMIT_WRITEABLE));
157 #endif // INCLUDE_JVMCI
158
159 #ifdef COMPILER1
160 emit_writeable_no(NULL C1_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
161 EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
162 EMIT_WRITEABLE_PRODUCT_FLAG,
163 EMIT_WRITEABLE_PD_PRODUCT_FLAG,
164 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
165 EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
166 EMIT_WRITEABLE_NOTPRODUCT_FLAG,
167 IGNORE_RANGE,
168 IGNORE_CONSTRAINT,
169 EMIT_WRITEABLE));
170 #endif // COMPILER1
171
172 #ifdef COMPILER2
173 emit_writeable_no(NULL C2_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
174 EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
175 EMIT_WRITEABLE_PRODUCT_FLAG,
176 EMIT_WRITEABLE_PD_PRODUCT_FLAG,
177 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
178 EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
179 EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
180 EMIT_WRITEABLE_NOTPRODUCT_FLAG,
181 IGNORE_RANGE,
182 IGNORE_CONSTRAINT,
183 EMIT_WRITEABLE));
184 #endif // COMPILER2
185 }
186
187 JVMFlagWriteable* JVMFlagWriteableList::find(const char* name) {
188 JVMFlagWriteable* found = NULL;
189 for (int i=0; i<length(); i++) {
190 JVMFlagWriteable* writeable = at(i);
191 if (strcmp(writeable->name(), name) == 0) {
192 found = writeable;
193 break;
194 }
195 }
196 return found;
197 }
198
199 void JVMFlagWriteableList::mark_startup(void) {
200 for (int i=0; i<length(); i++) {
201 JVMFlagWriteable* writeable = at(i);
202 writeable->mark_startup();
203 }
204 }