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 

    44 bool CommandLineFlagWriteable::is_writeable(void) {

    45   return _writeable;

    46 }

    47 

    48 void CommandLineFlagWriteable::mark_once(void) {

    49   if (_type == Once) {

    50     _writeable = false;

    51   }

    52 }

    53 

    54 void CommandLineFlagWriteable::mark_startup(void) {

    55   if (_type == CommandLineFlagWriteable::CommandLineOnly) {

    56     _writeable = false;

    57   }

    58 }

    59 

    60 // No control emitting

    61 void emit_writeable_no(...)                         { /* NOP */ }

    62 

    63 // No control emitting if type argument is NOT provided

    64 void emit_writeable_bool(const char* /*name*/)      { /* NOP */ }

    65 void emit_writeable_ccstr(const char* /*name*/)     { /* NOP */ }

    66 void emit_writeable_ccstrlist(const char* /*name*/) { /* NOP */ }

    67 void emit_writeable_int(const char* /*name*/)       { /* NOP */ }

    68 void emit_writeable_intx(const char* /*name*/)      { /* NOP */ }

    69 void emit_writeable_uint(const char* /*name*/)      { /* NOP */ }

    70 void emit_writeable_uintx(const char* /*name*/)     { /* NOP */ }

    71 void emit_writeable_uint64_t(const char* /*name*/)  { /* NOP */ }

    72 void emit_writeable_size_t(const char* /*name*/)    { /* NOP */ }

    73 void emit_writeable_double(const char* /*name*/)    { /* NOP */ }

    74 

    75 // CommandLineFlagWriteable emitting code functions if range arguments are provided

    76 void emit_writeable_bool(const char* name, CommandLineFlagWriteable::WriteableType type) {

    77   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    78 }

    79 void emit_writeable_int(const char* name, CommandLineFlagWriteable::WriteableType type) {

    80   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    81 }

    82 void emit_writeable_intx(const char* name, CommandLineFlagWriteable::WriteableType type) {

    83   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    84 }

    85 void emit_writeable_uint(const char* name, CommandLineFlagWriteable::WriteableType type) {

    86   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    87 }

    88 void emit_writeable_uintx(const char* name, CommandLineFlagWriteable::WriteableType type) {

    89   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    90 }

    91 void emit_writeable_uint64_t(const char* name, CommandLineFlagWriteable::WriteableType type) {

    92   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    93 }

    94 void emit_writeable_size_t(const char* name, CommandLineFlagWriteable::WriteableType type) {

    95   CommandLineFlagWriteableList::add(new CommandLineFlagWriteable(name, type));

    96 }

    97 void 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_NOTPRODUCT_FLAG(type, name, value, doc)   ); emit_writeable_##type(#name

   112 #define EMIT_WRITEABLE_LP64_PRODUCT_FLAG(type, name, value, doc) ); emit_writeable_##type(#name

   113 

   114 // Generate type argument to pass into emit_writeable_xxx functions

   115 #define EMIT_WRITEABLE(a)                                      , CommandLineFlagWriteable::a

   116 

   117 #define INITIAL_WRITEABLES_SIZE 2

   118 GrowableArray<CommandLineFlagWriteable*>* CommandLineFlagWriteableList::_controls = NULL;

   119 

   120 void CommandLineFlagWriteableList::init(void) {

   121 

   122   _controls = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<CommandLineFlagWriteable*>(INITIAL_WRITEABLES_SIZE, true);

   123 

   124   emit_writeable_no(NULL RUNTIME_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,

   125                                    EMIT_WRITEABLE_PD_DEVELOPER_FLAG,

   126                                    EMIT_WRITEABLE_PRODUCT_FLAG,

   127                                    EMIT_WRITEABLE_PD_PRODUCT_FLAG,

   128                                    EMIT_WRITEABLE_DIAGNOSTIC_FLAG,

   129                                    EMIT_WRITEABLE_EXPERIMENTAL_FLAG,

   130                                    EMIT_WRITEABLE_NOTPRODUCT_FLAG,

   131                                    EMIT_WRITEABLE_MANAGEABLE_FLAG,

   132                                    EMIT_WRITEABLE_PRODUCT_RW_FLAG,

   133                                    EMIT_WRITEABLE_LP64_PRODUCT_FLAG,

   134                                    IGNORE_RANGE,

   135                                    IGNORE_CONSTRAINT,

   136                                    EMIT_WRITEABLE));

   137 

   138   EMIT_WRITEABLES_FOR_GLOBALS_EXT

   139 

   140   emit_writeable_no(NULL ARCH_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,

   141                                 EMIT_WRITEABLE_PRODUCT_FLAG,

   142                                 EMIT_WRITEABLE_DIAGNOSTIC_FLAG,

   143                                 EMIT_WRITEABLE_EXPERIMENTAL_FLAG,

   144                                 EMIT_WRITEABLE_NOTPRODUCT_FLAG,

   145                                 IGNORE_RANGE,

   146                                 IGNORE_CONSTRAINT,

   147                                 EMIT_WRITEABLE));

   148 

   149 #if INCLUDE_JVMCI

   150   emit_writeable_no(NULL JVMCI_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,

   151                                  EMIT_WRITEABLE_PD_DEVELOPER_FLAG,

   152                                  EMIT_WRITEABLE_PRODUCT_FLAG,

   153                                  EMIT_WRITEABLE_PD_PRODUCT_FLAG,

   154                                  EMIT_WRITEABLE_DIAGNOSTIC_FLAG,

   155                                  EMIT_WRITEABLE_EXPERIMENTAL_FLAG,

   156                                  EMIT_WRITEABLE_NOTPRODUCT_FLAG,

   157                                  IGNORE_RANGE,

   158                                  IGNORE_CONSTRAINT,

   159                                  EMIT_WRITEABLE));

   160 #endif // INCLUDE_JVMCI

   161 

   162 #ifdef COMPILER1

   163   emit_writeable_no(NULL C1_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,

   164                               EMIT_WRITEABLE_PD_DEVELOPER_FLAG,

   165                               EMIT_WRITEABLE_PRODUCT_FLAG,

   166                               EMIT_WRITEABLE_PD_PRODUCT_FLAG,

   167                               EMIT_WRITEABLE_DIAGNOSTIC_FLAG,

   168                               EMIT_WRITEABLE_NOTPRODUCT_FLAG,

   169                               IGNORE_RANGE,

   170                               IGNORE_CONSTRAINT,

   171                               EMIT_WRITEABLE));

   172 #endif // COMPILER1

   173 

   174 #ifdef COMPILER2

   175   emit_writeable_no(NULL C2_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,

   176                               EMIT_WRITEABLE_PD_DEVELOPER_FLAG,

   177                               EMIT_WRITEABLE_PRODUCT_FLAG,

   178                               EMIT_WRITEABLE_PD_PRODUCT_FLAG,

   179                               EMIT_WRITEABLE_DIAGNOSTIC_FLAG,

   180                               EMIT_WRITEABLE_EXPERIMENTAL_FLAG,

   181                               EMIT_WRITEABLE_NOTPRODUCT_FLAG,

   182                               IGNORE_RANGE,

   183                               IGNORE_CONSTRAINT,

   184                               EMIT_WRITEABLE));

   185 #endif // COMPILER2

   186 

   187 #if INCLUDE_ALL_GCS

   188   emit_writeable_no(NULL G1_FLAGS(EMIT_WRITEABLE_DEVELOPER_FLAG,

   189                               EMIT_WRITEABLE_PD_DEVELOPER_FLAG,

   190                               EMIT_WRITEABLE_PRODUCT_FLAG,

   191                               EMIT_WRITEABLE_PD_PRODUCT_FLAG,

   192                               EMIT_WRITEABLE_DIAGNOSTIC_FLAG,

   193                               EMIT_WRITEABLE_EXPERIMENTAL_FLAG,

   194                               EMIT_WRITEABLE_NOTPRODUCT_FLAG,

   195                               EMIT_WRITEABLE_MANAGEABLE_FLAG,

   196                               EMIT_WRITEABLE_PRODUCT_RW_FLAG,

   197                               IGNORE_RANGE,

   198                               IGNORE_CONSTRAINT,

   199                               EMIT_WRITEABLE));

   200 #endif // INCLUDE_ALL_GCS

   201 }

   202 

   203 CommandLineFlagWriteable* CommandLineFlagWriteableList::find(const char* name) {

   204   CommandLineFlagWriteable* found = NULL;

   205   for (int i=0; i<length(); i++) {

   206     CommandLineFlagWriteable* writeable = at(i);

   207     if (strcmp(writeable->name(), name) == 0) {

   208       found = writeable;

   209       break;

   210     }

   211   }

   212   return found;

   213 }

   214 

   215 void CommandLineFlagWriteableList::mark_startup(void) {

   216   for (int i=0; i<length(); i++) {

   217     CommandLineFlagWriteable* writeable = at(i);

   218     writeable->mark_startup();

   219   }

   220 }