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/commandLineFlagWriteableList.hpp"
27#include "runtime/os.hpp"
28#if INCLUDE_ALL_GCS
29#include "gc/cms/concurrentMarkSweepGeneration.inline.hpp"
30#include "gc/g1/g1_globals.hpp"
31#include "gc/g1/heapRegionBounds.inline.hpp"
32#include "gc/shared/plab.hpp"
33#endif // INCLUDE_ALL_GCS
34#ifdef COMPILER1
35#include "c1/c1_globals.hpp"
36#endif // COMPILER1
37#ifdef COMPILER2
38#include "opto/c2_globals.hpp"
39#endif // COMPILER2
40#if INCLUDE_JVMCI
41#include "jvmci/jvmci_globals.hpp"
42#endif
43
44bool CommandLineFlagWriteable::is_writeable(void) {
45  return _writeable;
46}
47
48void CommandLineFlagWriteable::mark_once(void) {
49  if (_type == Once) {
50    _writeable = false;
51  }
52}
53
54void CommandLineFlagWriteable::mark_startup(void) {
55  if (_type == CommandLineFlagWriteable::CommandLineOnly) {
56    _writeable = false;
57  }
58}
59
60// No control emitting
61void emit_writeable_no(...)                         { /* NOP */ }
62
63// No control emitting if type argument is NOT provided
64void emit_writeable_bool(const char* /*name*/)      { /* NOP */ }
65void emit_writeable_ccstr(const char* /*name*/)     { /* NOP */ }
66void emit_writeable_ccstrlist(const char* /*name*/) { /* NOP */ }
67void emit_writeable_int(const char* /*name*/)       { /* NOP */ }
68void emit_writeable_intx(const char* /*name*/)      { /* NOP */ }
69void emit_writeable_uint(const char* /*name*/)      { /* NOP */ }
70void emit_writeable_uintx(const char* /*name*/)     { /* NOP */ }
71void emit_writeable_uint64_t(const char* /*name*/)  { /* NOP */ }
72void emit_writeable_size_t(const char* /*name*/)    { /* NOP */ }
73void emit_writeable_double(const char* /*name*/)    { /* NOP */ }
74
75// CommandLineFlagWriteable emitting code functions if range arguments are provided
76void emit_writeable_bool(const char* name, CommandLineFlagWriteable::WriteableType type) {
77  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
78}
79void emit_writeable_int(const char* name, CommandLineFlagWriteable::WriteableType type) {
80  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
81}
82void emit_writeable_intx(const char* name, CommandLineFlagWriteable::WriteableType type) {
83  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
84}
85void emit_writeable_uint(const char* name, CommandLineFlagWriteable::WriteableType type) {
86  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
87}
88void emit_writeable_uintx(const char* name, CommandLineFlagWriteable::WriteableType type) {
89  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
90}
91void emit_writeable_uint64_t(const char* name, CommandLineFlagWriteable::WriteableType type) {
92  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
93}
94void emit_writeable_size_t(const char* name, CommandLineFlagWriteable::WriteableType type) {
95  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
96}
97void emit_writeable_double(const char* name, CommandLineFlagWriteable::WriteableType type) {
98  CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));
99}
100
101// Generate code to call emit_writeable_xxx function
102#define EMIT_WRITEABLE_PRODUCT_FLAG(type, name, value, doc)      ); emit_writeable_##type(#name
103#define EMIT_WRITEABLE_COMMERCIAL_FLAG(type, name, value, doc)   ); emit_writeable_##type(#name
104#define EMIT_WRITEABLE_DIAGNOSTIC_FLAG(type, name, value, doc)   ); emit_writeable_##type(#name
105#define EMIT_WRITEABLE_EXPERIMENTAL_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
106#define EMIT_WRITEABLE_MANAGEABLE_FLAG(type, name, value, doc)   ); emit_writeable_##type(#name
107#define EMIT_WRITEABLE_PRODUCT_RW_FLAG(type, name, value, doc)   ); emit_writeable_##type(#name
108#define EMIT_WRITEABLE_PD_PRODUCT_FLAG(type, name, doc)          ); emit_writeable_##type(#name
109#define EMIT_WRITEABLE_DEVELOPER_FLAG(type, name, value, doc)    ); emit_writeable_##type(#name
110#define EMIT_WRITEABLE_PD_DEVELOPER_FLAG(type, name, doc)        ); emit_writeable_##type(#name
111#define EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG(type, name, doc)       ); emit_writeable_##type(#name
112#define EMIT_WRITEABLE_NOTPRODUCT_FLAG(type, name, value, doc)   ); emit_writeable_##type(#name
113#define EMIT_WRITEABLE_LP64_PRODUCT_FLAG(type, name, value, doc) ); emit_writeable_##type(#name
114
115// Generate type argument to pass into emit_writeable_xxx functions
116#define EMIT_WRITEABLE(a)                                      , CommandLineFlagWriteable::a
117
118#define INITIAL_WRITEABLES_SIZE 2
119GrowableArray<CommandLineFlagWriteable*>* CommandLineFlagWriteableList::_controls = NULL;
120
121void CommandLineFlagWriteableList::init(void) {
122
123  _controls = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<CommandLineFlagWriteable*>(INITIAL_WRITEABLES_SIZE, true);
124
125  emit_writeable_no(NULL RUNTIME_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
126                                   EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
127                                   EMIT_WRITEABLE_PRODUCT_FLAG,
128                                   EMIT_WRITEABLE_PD_PRODUCT_FLAG,
129                                   EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
130                                   EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
131                                   EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
132                                   EMIT_WRITEABLE_NOTPRODUCT_FLAG,
133                                   EMIT_WRITEABLE_MANAGEABLE_FLAG,
134                                   EMIT_WRITEABLE_PRODUCT_RW_FLAG,
135                                   EMIT_WRITEABLE_LP64_PRODUCT_FLAG,
136                                   IGNORE_RANGE,
137                                   IGNORE_CONSTRAINT,
138                                   EMIT_WRITEABLE));
139
140  EMIT_WRITEABLES_FOR_GLOBALS_EXT
141
142  emit_writeable_no(NULL ARCH_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
143                                EMIT_WRITEABLE_PRODUCT_FLAG,
144                                EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
145                                EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
146                                EMIT_WRITEABLE_NOTPRODUCT_FLAG,
147                                IGNORE_RANGE,
148                                IGNORE_CONSTRAINT,
149                                EMIT_WRITEABLE));
150
151#if INCLUDE_JVMCI
152  emit_writeable_no(NULL JVMCI_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
153                                 EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
154                                 EMIT_WRITEABLE_PRODUCT_FLAG,
155                                 EMIT_WRITEABLE_PD_PRODUCT_FLAG,
156                                 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
157                                 EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
158                                 EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
159                                 EMIT_WRITEABLE_NOTPRODUCT_FLAG,
160                                 IGNORE_RANGE,
161                                 IGNORE_CONSTRAINT,
162                                 EMIT_WRITEABLE));
163#endif // INCLUDE_JVMCI
164
165#ifdef COMPILER1
166  emit_writeable_no(NULL C1_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
167                              EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
168                              EMIT_WRITEABLE_PRODUCT_FLAG,
169                              EMIT_WRITEABLE_PD_PRODUCT_FLAG,
170                              EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
171                              EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
172                              EMIT_WRITEABLE_NOTPRODUCT_FLAG,
173                              IGNORE_RANGE,
174                              IGNORE_CONSTRAINT,
175                              EMIT_WRITEABLE));
176#endif // COMPILER1
177
178#ifdef COMPILER2
179  emit_writeable_no(NULL C2_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
180                              EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
181                              EMIT_WRITEABLE_PRODUCT_FLAG,
182                              EMIT_WRITEABLE_PD_PRODUCT_FLAG,
183                              EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
184                              EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
185                              EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
186                              EMIT_WRITEABLE_NOTPRODUCT_FLAG,
187                              IGNORE_RANGE,
188                              IGNORE_CONSTRAINT,
189                              EMIT_WRITEABLE));
190#endif // COMPILER2
191
192#if INCLUDE_ALL_GCS
193  emit_writeable_no(NULL G1_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,
194                              EMIT_WRITEABLE_PD_DEVELOPER_FLAG,
195                              EMIT_WRITEABLE_PRODUCT_FLAG,
196                              EMIT_WRITEABLE_PD_PRODUCT_FLAG,
197                              EMIT_WRITEABLE_DIAGNOSTIC_FLAG,
198                              EMIT_WRITEABLE_PD_DIAGNOSTIC_FLAG,
199                              EMIT_WRITEABLE_EXPERIMENTAL_FLAG,
200                              EMIT_WRITEABLE_NOTPRODUCT_FLAG,
201                              EMIT_WRITEABLE_MANAGEABLE_FLAG,
202                              EMIT_WRITEABLE_PRODUCT_RW_FLAG,
203                              IGNORE_RANGE,
204                              IGNORE_CONSTRAINT,
205                              EMIT_WRITEABLE));
206#endif // INCLUDE_ALL_GCS
207}
208
209CommandLineFlagWriteable* CommandLineFlagWriteableList::find(const char* name) {
210  CommandLineFlagWriteable* found = NULL;
211  for (int i=0; i<length(); i++) {
212    CommandLineFlagWriteable* writeable = at(i);
213    if (strcmp(writeable->name(), name) == 0) {
214      found = writeable;
215      break;
216    }
217  }
218  return found;
219}
220
221void CommandLineFlagWriteableList::mark_startup(void) {
222  for (int i=0; i<length(); i++) {
223    CommandLineFlagWriteable* writeable = at(i);
224    writeable->mark_startup();
225  }
226}
227