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_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
 119 GrowableArray<CommandLineFlagWriteable*>* CommandLineFlagWriteableList::_controls = NULL;
 120 
 121 void 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,

 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 
 209 CommandLineFlagWriteable* 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 
 221 void CommandLineFlagWriteableList::mark_startup(void) {
 222   for (int i=0; i<length(); i++) {
 223     CommandLineFlagWriteable* writeable = at(i);
 224     writeable->mark_startup();
 225   }
 226 }

   1 /*
   2  * Copyright (c) 2015, 2018, 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 #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 JVMFlagWriteable::is_writeable(void) {
  45   return _writeable;
  46 }
  47 
  48 void JVMFlagWriteable::mark_once(void) {
  49   if (_type == Once) {
  50     _writeable = false;
  51   }
  52 }
  53 
  54 void JVMFlagWriteable::mark_startup(void) {
  55   if (_type == JVMFlagWriteable::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 // JVMFlagWriteable emitting code functions if range arguments are provided
  76 void emit_writeable_bool(const char* name, JVMFlagWriteable::WriteableType type) {
  77   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  78 }
  79 void emit_writeable_int(const char* name, JVMFlagWriteable::WriteableType type) {
  80   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  81 }
  82 void emit_writeable_intx(const char* name, JVMFlagWriteable::WriteableType type) {
  83   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  84 }
  85 void emit_writeable_uint(const char* name, JVMFlagWriteable::WriteableType type) {
  86   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  87 }
  88 void emit_writeable_uintx(const char* name, JVMFlagWriteable::WriteableType type) {
  89   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  90 }
  91 void emit_writeable_uint64_t(const char* name, JVMFlagWriteable::WriteableType type) {
  92   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  93 }
  94 void emit_writeable_size_t(const char* name, JVMFlagWriteable::WriteableType type) {
  95   JVMFlagWriteableList::add(new JVMFlagWriteable(name, type));
  96 }
  97 void emit_writeable_double(const char* name, JVMFlagWriteable::WriteableType type) {
  98   JVMFlagWriteableList::add(new JVMFlagWriteable(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)                                      , JVMFlagWriteable::a
 117 
 118 #define INITIAL_WRITEABLES_SIZE 2
 119 GrowableArray<JVMFlagWriteable*>* JVMFlagWriteableList::_controls = NULL;
 120 
 121 void JVMFlagWriteableList::init(void) {
 122 
 123   _controls = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<JVMFlagWriteable*>(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,

 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 
 209 JVMFlagWriteable* JVMFlagWriteableList::find(const char* name) {
 210   JVMFlagWriteable* found = NULL;
 211   for (int i=0; i<length(); i++) {
 212     JVMFlagWriteable* writeable = at(i);
 213     if (strcmp(writeable->name(), name) == 0) {
 214       found = writeable;
 215       break;
 216     }
 217   }
 218   return found;
 219 }
 220 
 221 void JVMFlagWriteableList::mark_startup(void) {
 222   for (int i=0; i<length(); i++) {
 223     JVMFlagWriteable* writeable = at(i);
 224     writeable->mark_startup();
 225   }
 226 }