--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/runtime/arguments.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,813 @@
+/*
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_RUNTIME_ARGUMENTS_HPP
+#define SHARE_VM_RUNTIME_ARGUMENTS_HPP
+
+#include "logging/logLevel.hpp"
+#include "logging/logTag.hpp"
+#include "runtime/java.hpp"
+#include "runtime/os.hpp"
+#include "runtime/perfData.hpp"
+#include "utilities/debug.hpp"
+
+// Arguments parses the command line and recognizes options
+
+// Invocation API hook typedefs (these should really be defined in jni.hpp)
+extern "C" {
+ typedef void (JNICALL *abort_hook_t)(void);
+ typedef void (JNICALL *exit_hook_t)(jint code);
+ typedef jint (JNICALL *vfprintf_hook_t)(FILE *fp, const char *format, va_list args) ATTRIBUTE_PRINTF(2, 0);
+}
+
+// Obsolete or deprecated -XX flag.
+struct SpecialFlag {
+ const char* name;
+ JDK_Version deprecated_in; // When the deprecation warning started (or "undefined").
+ JDK_Version obsolete_in; // When the obsolete warning started (or "undefined").
+ JDK_Version expired_in; // When the option expires (or "undefined").
+};
+
+// PathString is used as:
+// - the underlying value for a SystemProperty
+// - the path portion of an --patch-module module/path pair
+// - the string that represents the system boot class path, Arguments::_system_boot_class_path.
+class PathString : public CHeapObj<mtArguments> {
+ protected:
+ char* _value;
+ public:
+ char* value() const { return _value; }
+
+ bool set_value(const char *value) {
+ if (_value != NULL) {
+ FreeHeap(_value);
+ }
+ _value = AllocateHeap(strlen(value)+1, mtArguments);
+ assert(_value != NULL, "Unable to allocate space for new path value");
+ if (_value != NULL) {
+ strcpy(_value, value);
+ } else {
+ // not able to allocate
+ return false;
+ }
+ return true;
+ }
+
+ void append_value(const char *value) {
+ char *sp;
+ size_t len = 0;
+ if (value != NULL) {
+ len = strlen(value);
+ if (_value != NULL) {
+ len += strlen(_value);
+ }
+ sp = AllocateHeap(len+2, mtArguments);
+ assert(sp != NULL, "Unable to allocate space for new append path value");
+ if (sp != NULL) {
+ if (_value != NULL) {
+ strcpy(sp, _value);
+ strcat(sp, os::path_separator());
+ strcat(sp, value);
+ FreeHeap(_value);
+ } else {
+ strcpy(sp, value);
+ }
+ _value = sp;
+ }
+ }
+ }
+
+ PathString(const char* value) {
+ if (value == NULL) {
+ _value = NULL;
+ } else {
+ _value = AllocateHeap(strlen(value)+1, mtArguments);
+ strcpy(_value, value);
+ }
+ }
+
+ ~PathString() {
+ if (_value != NULL) {
+ FreeHeap(_value);
+ _value = NULL;
+ }
+ }
+};
+
+// ModulePatchPath records the module/path pair as specified to --patch-module.
+class ModulePatchPath : public CHeapObj<mtInternal> {
+private:
+ char* _module_name;
+ PathString* _path;
+public:
+ ModulePatchPath(const char* module_name, const char* path) {
+ assert(module_name != NULL && path != NULL, "Invalid module name or path value");
+ size_t len = strlen(module_name) + 1;
+ _module_name = AllocateHeap(len, mtInternal);
+ strncpy(_module_name, module_name, len); // copy the trailing null
+ _path = new PathString(path);
+ }
+
+ ~ModulePatchPath() {
+ if (_module_name != NULL) {
+ FreeHeap(_module_name);
+ _module_name = NULL;
+ }
+ if (_path != NULL) {
+ delete _path;
+ _path = NULL;
+ }
+ }
+
+ inline void set_path(const char* path) { _path->set_value(path); }
+ inline const char* module_name() const { return _module_name; }
+ inline char* path_string() const { return _path->value(); }
+};
+
+// Element describing System and User (-Dkey=value flags) defined property.
+//
+// An internal SystemProperty is one that has been removed in
+// jdk.internal.VM.saveAndRemoveProperties, like jdk.boot.class.path.append.
+//
+class SystemProperty : public PathString {
+ private:
+ char* _key;
+ SystemProperty* _next;
+ bool _internal;
+ bool _writeable;
+ bool writeable() { return _writeable; }
+
+ public:
+ // Accessors
+ char* value() const { return PathString::value(); }
+ const char* key() const { return _key; }
+ bool internal() const { return _internal; }
+ SystemProperty* next() const { return _next; }
+ void set_next(SystemProperty* next) { _next = next; }
+
+ bool is_readable() const {
+ return !_internal || strcmp(_key, "jdk.boot.class.path.append") == 0;
+ }
+
+ // A system property should only have its value set
+ // via an external interface if it is a writeable property.
+ // The internal, non-writeable property jdk.boot.class.path.append
+ // is the only exception to this rule. It can be set externally
+ // via -Xbootclasspath/a or JVMTI OnLoad phase call to AddToBootstrapClassLoaderSearch.
+ // In those cases for jdk.boot.class.path.append, the base class
+ // set_value and append_value methods are called directly.
+ bool set_writeable_value(const char *value) {
+ if (writeable()) {
+ return set_value(value);
+ }
+ return false;
+ }
+
+ // Constructor
+ SystemProperty(const char* key, const char* value, bool writeable, bool internal = false) : PathString(value) {
+ if (key == NULL) {
+ _key = NULL;
+ } else {
+ _key = AllocateHeap(strlen(key)+1, mtArguments);
+ strcpy(_key, key);
+ }
+ _next = NULL;
+ _internal = internal;
+ _writeable = writeable;
+ }
+};
+
+
+// For use by -agentlib, -agentpath and -Xrun
+class AgentLibrary : public CHeapObj<mtArguments> {
+ friend class AgentLibraryList;
+public:
+ // Is this library valid or not. Don't rely on os_lib == NULL as statically
+ // linked lib could have handle of RTLD_DEFAULT which == 0 on some platforms
+ enum AgentState {
+ agent_invalid = 0,
+ agent_valid = 1
+ };
+
+ private:
+ char* _name;
+ char* _options;
+ void* _os_lib;
+ bool _is_absolute_path;
+ bool _is_static_lib;
+ AgentState _state;
+ AgentLibrary* _next;
+
+ public:
+ // Accessors
+ const char* name() const { return _name; }
+ char* options() const { return _options; }
+ bool is_absolute_path() const { return _is_absolute_path; }
+ void* os_lib() const { return _os_lib; }
+ void set_os_lib(void* os_lib) { _os_lib = os_lib; }
+ AgentLibrary* next() const { return _next; }
+ bool is_static_lib() const { return _is_static_lib; }
+ void set_static_lib(bool is_static_lib) { _is_static_lib = is_static_lib; }
+ bool valid() { return (_state == agent_valid); }
+ void set_valid() { _state = agent_valid; }
+ void set_invalid() { _state = agent_invalid; }
+
+ // Constructor
+ AgentLibrary(const char* name, const char* options, bool is_absolute_path, void* os_lib) {
+ _name = AllocateHeap(strlen(name)+1, mtArguments);
+ strcpy(_name, name);
+ if (options == NULL) {
+ _options = NULL;
+ } else {
+ _options = AllocateHeap(strlen(options)+1, mtArguments);
+ strcpy(_options, options);
+ }
+ _is_absolute_path = is_absolute_path;
+ _os_lib = os_lib;
+ _next = NULL;
+ _state = agent_invalid;
+ _is_static_lib = false;
+ }
+};
+
+// maintain an order of entry list of AgentLibrary
+class AgentLibraryList VALUE_OBJ_CLASS_SPEC {
+ private:
+ AgentLibrary* _first;
+ AgentLibrary* _last;
+ public:
+ bool is_empty() const { return _first == NULL; }
+ AgentLibrary* first() const { return _first; }
+
+ // add to the end of the list
+ void add(AgentLibrary* lib) {
+ if (is_empty()) {
+ _first = _last = lib;
+ } else {
+ _last->_next = lib;
+ _last = lib;
+ }
+ lib->_next = NULL;
+ }
+
+ // search for and remove a library known to be in the list
+ void remove(AgentLibrary* lib) {
+ AgentLibrary* curr;
+ AgentLibrary* prev = NULL;
+ for (curr = first(); curr != NULL; prev = curr, curr = curr->next()) {
+ if (curr == lib) {
+ break;
+ }
+ }
+ assert(curr != NULL, "always should be found");
+
+ if (curr != NULL) {
+ // it was found, by-pass this library
+ if (prev == NULL) {
+ _first = curr->_next;
+ } else {
+ prev->_next = curr->_next;
+ }
+ if (curr == _last) {
+ _last = prev;
+ }
+ curr->_next = NULL;
+ }
+ }
+
+ AgentLibraryList() {
+ _first = NULL;
+ _last = NULL;
+ }
+};
+
+// Helper class for controlling the lifetime of JavaVMInitArgs objects.
+class ScopedVMInitArgs;
+
+// Most logging functions require 5 tags. Some of them may be _NO_TAG.
+typedef struct {
+ const char* alias_name;
+ LogLevelType level;
+ bool exactMatch;
+ LogTagType tag0;
+ LogTagType tag1;
+ LogTagType tag2;
+ LogTagType tag3;
+ LogTagType tag4;
+ LogTagType tag5;
+} AliasedLoggingFlag;
+
+class Arguments : AllStatic {
+ friend class VMStructs;
+ friend class JvmtiExport;
+ friend class CodeCacheExtensions;
+ friend class ArgumentsTest;
+ public:
+ // Operation modi
+ enum Mode {
+ _int, // corresponds to -Xint
+ _mixed, // corresponds to -Xmixed
+ _comp // corresponds to -Xcomp
+ };
+
+ enum ArgsRange {
+ arg_unreadable = -3,
+ arg_too_small = -2,
+ arg_too_big = -1,
+ arg_in_range = 0
+ };
+
+ enum PropertyAppendable {
+ AppendProperty,
+ AddProperty
+ };
+
+ enum PropertyWriteable {
+ WriteableProperty,
+ UnwriteableProperty
+ };
+
+ enum PropertyInternal {
+ InternalProperty,
+ ExternalProperty
+ };
+
+ private:
+
+ // a pointer to the flags file name if it is specified
+ static char* _jvm_flags_file;
+ // an array containing all flags specified in the .hotspotrc file
+ static char** _jvm_flags_array;
+ static int _num_jvm_flags;
+ // an array containing all jvm arguments specified in the command line
+ static char** _jvm_args_array;
+ static int _num_jvm_args;
+ // string containing all java command (class/jarfile name and app args)
+ static char* _java_command;
+
+ // Property list
+ static SystemProperty* _system_properties;
+
+ // Quick accessor to System properties in the list:
+ static SystemProperty *_sun_boot_library_path;
+ static SystemProperty *_java_library_path;
+ static SystemProperty *_java_home;
+ static SystemProperty *_java_class_path;
+ static SystemProperty *_jdk_boot_class_path_append;
+
+ // --patch-module=module=<file>(<pathsep><file>)*
+ // Each element contains the associated module name, path
+ // string pair as specified to --patch-module.
+ static GrowableArray<ModulePatchPath*>* _patch_mod_prefix;
+
+ // The constructed value of the system class path after
+ // argument processing and JVMTI OnLoad additions via
+ // calls to AddToBootstrapClassLoaderSearch. This is the
+ // final form before ClassLoader::setup_bootstrap_search().
+ // Note: since --patch-module is a module name/path pair, the
+ // system boot class path string no longer contains the "prefix"
+ // to the boot class path base piece as it did when
+ // -Xbootclasspath/p was supported.
+ static PathString *_system_boot_class_path;
+
+ // Set if a modular java runtime image is present vs. a build with exploded modules
+ static bool _has_jimage;
+
+ // temporary: to emit warning if the default ext dirs are not empty.
+ // remove this variable when the warning is no longer needed.
+ static char* _ext_dirs;
+
+ // java.vendor.url.bug, bug reporting URL for fatal errors.
+ static const char* _java_vendor_url_bug;
+
+ // sun.java.launcher, private property to provide information about
+ // java launcher
+ static const char* _sun_java_launcher;
+
+ // sun.java.launcher.pid, private property
+ static int _sun_java_launcher_pid;
+
+ // was this VM created via the -XXaltjvm=<path> option
+ static bool _sun_java_launcher_is_altjvm;
+
+ // Option flags
+ static const char* _gc_log_filename;
+ // Value of the conservative maximum heap alignment needed
+ static size_t _conservative_max_heap_alignment;
+
+ static uintx _min_heap_size;
+
+ // -Xrun arguments
+ static AgentLibraryList _libraryList;
+ static void add_init_library(const char* name, char* options)
+ { _libraryList.add(new AgentLibrary(name, options, false, NULL)); }
+
+ // -agentlib and -agentpath arguments
+ static AgentLibraryList _agentList;
+ static void add_init_agent(const char* name, char* options, bool absolute_path)
+ { _agentList.add(new AgentLibrary(name, options, absolute_path, NULL)); }
+
+ // Late-binding agents not started via arguments
+ static void add_loaded_agent(AgentLibrary *agentLib)
+ { _agentList.add(agentLib); }
+ static void add_loaded_agent(const char* name, char* options, bool absolute_path, void* os_lib)
+ { _agentList.add(new AgentLibrary(name, options, absolute_path, os_lib)); }
+
+ // Operation modi
+ static Mode _mode;
+ static void set_mode_flags(Mode mode);
+ static bool _java_compiler;
+ static void set_java_compiler(bool arg) { _java_compiler = arg; }
+ static bool java_compiler() { return _java_compiler; }
+
+ // -Xdebug flag
+ static bool _xdebug_mode;
+ static void set_xdebug_mode(bool arg) { _xdebug_mode = arg; }
+ static bool xdebug_mode() { return _xdebug_mode; }
+
+ // Used to save default settings
+ static bool _AlwaysCompileLoopMethods;
+ static bool _UseOnStackReplacement;
+ static bool _BackgroundCompilation;
+ static bool _ClipInlining;
+ static bool _CIDynamicCompilePriority;
+ static intx _Tier3InvokeNotifyFreqLog;
+ static intx _Tier4InvocationThreshold;
+
+ // Compilation mode.
+ static bool compilation_mode_selected();
+ static void select_compilation_mode_ergonomically();
+
+ // Tiered
+ static void set_tiered_flags();
+ // CMS/ParNew garbage collectors
+ static void set_parnew_gc_flags();
+ static void set_cms_and_parnew_gc_flags();
+ // UseParallel[Old]GC
+ static void set_parallel_gc_flags();
+ // Garbage-First (UseG1GC)
+ static void set_g1_gc_flags();
+ // GC ergonomics
+ static void set_conservative_max_heap_alignment();
+ static void set_use_compressed_oops();
+ static void set_use_compressed_klass_ptrs();
+ static void select_gc();
+ static void set_ergonomics_flags();
+ static void set_shared_spaces_flags();
+ // limits the given memory size by the maximum amount of memory this process is
+ // currently allowed to allocate or reserve.
+ static julong limit_by_allocatable_memory(julong size);
+ // Setup heap size
+ static void set_heap_size();
+
+ // Bytecode rewriting
+ static void set_bytecode_flags();
+
+ // Invocation API hooks
+ static abort_hook_t _abort_hook;
+ static exit_hook_t _exit_hook;
+ static vfprintf_hook_t _vfprintf_hook;
+
+ // System properties
+ static bool add_property(const char* prop, PropertyWriteable writeable=WriteableProperty,
+ PropertyInternal internal=ExternalProperty);
+
+ static bool create_property(const char* prop_name, const char* prop_value, PropertyInternal internal);
+ static bool create_numbered_property(const char* prop_base_name, const char* prop_value, unsigned int count);
+
+ static int process_patch_mod_option(const char* patch_mod_tail, bool* patch_mod_javabase);
+
+ // Aggressive optimization flags.
+ static jint set_aggressive_opts_flags();
+
+ static jint set_aggressive_heap_flags();
+
+ // Argument parsing
+ static void do_pd_flag_adjustments();
+ static bool parse_argument(const char* arg, Flag::Flags origin);
+ static bool process_argument(const char* arg, jboolean ignore_unrecognized, Flag::Flags origin);
+ static void process_java_launcher_argument(const char*, void*);
+ static void process_java_compiler_argument(const char* arg);
+ static jint parse_options_environment_variable(const char* name, ScopedVMInitArgs* vm_args);
+ static jint parse_java_tool_options_environment_variable(ScopedVMInitArgs* vm_args);
+ static jint parse_java_options_environment_variable(ScopedVMInitArgs* vm_args);
+ static jint parse_vm_options_file(const char* file_name, ScopedVMInitArgs* vm_args);
+ static jint parse_options_buffer(const char* name, char* buffer, const size_t buf_len, ScopedVMInitArgs* vm_args);
+ static jint parse_xss(const JavaVMOption* option, const char* tail, intx* out_ThreadStackSize);
+ static jint insert_vm_options_file(const JavaVMInitArgs* args,
+ const char* vm_options_file,
+ const int vm_options_file_pos,
+ ScopedVMInitArgs* vm_options_file_args,
+ ScopedVMInitArgs* args_out);
+ static bool args_contains_vm_options_file_arg(const JavaVMInitArgs* args);
+ static jint expand_vm_options_as_needed(const JavaVMInitArgs* args_in,
+ ScopedVMInitArgs* mod_args,
+ JavaVMInitArgs** args_out);
+ static jint match_special_option_and_act(const JavaVMInitArgs* args,
+ ScopedVMInitArgs* args_out);
+
+ static bool handle_deprecated_print_gc_flags();
+
+ static void handle_extra_cms_flags(const char* msg);
+
+ static jint parse_vm_init_args(const JavaVMInitArgs *java_tool_options_args,
+ const JavaVMInitArgs *java_options_args,
+ const JavaVMInitArgs *cmd_line_args);
+ static jint parse_each_vm_init_arg(const JavaVMInitArgs* args, bool* patch_mod_javabase, Flag::Flags origin);
+ static jint finalize_vm_init_args(bool patch_mod_javabase);
+ static bool is_bad_option(const JavaVMOption* option, jboolean ignore, const char* option_type);
+
+ static bool is_bad_option(const JavaVMOption* option, jboolean ignore) {
+ return is_bad_option(option, ignore, NULL);
+ }
+
+ static void describe_range_error(ArgsRange errcode);
+ static ArgsRange check_memory_size(julong size, julong min_size, julong max_size);
+ static ArgsRange parse_memory_size(const char* s, julong* long_arg,
+ julong min_size, julong max_size = max_uintx);
+ // Parse a string for a unsigned integer. Returns true if value
+ // is an unsigned integer greater than or equal to the minimum
+ // parameter passed and returns the value in uintx_arg. Returns
+ // false otherwise, with uintx_arg undefined.
+ static bool parse_uintx(const char* value, uintx* uintx_arg,
+ uintx min_size);
+
+ // methods to build strings from individual args
+ static void build_jvm_args(const char* arg);
+ static void build_jvm_flags(const char* arg);
+ static void add_string(char*** bldarray, int* count, const char* arg);
+ static const char* build_resource_string(char** args, int count);
+
+ static bool methodExists(
+ char* className, char* methodName,
+ int classesNum, char** classes, bool* allMethods,
+ int methodsNum, char** methods, bool* allClasses
+ );
+
+ static void parseOnlyLine(
+ const char* line,
+ short* classesNum, short* classesMax, char*** classes, bool** allMethods,
+ short* methodsNum, short* methodsMax, char*** methods, bool** allClasses
+ );
+
+ // Returns true if the flag is obsolete (and not yet expired).
+ // In this case the 'version' buffer is filled in with
+ // the version number when the flag became obsolete.
+ static bool is_obsolete_flag(const char* flag_name, JDK_Version* version);
+
+#ifndef PRODUCT
+ static const char* removed_develop_logging_flag_name(const char* name);
+#endif // PRODUCT
+
+ // Returns 1 if the flag is deprecated (and not yet obsolete or expired).
+ // In this case the 'version' buffer is filled in with the version number when
+ // the flag became deprecated.
+ // Returns -1 if the flag is expired or obsolete.
+ // Returns 0 otherwise.
+ static int is_deprecated_flag(const char* flag_name, JDK_Version* version);
+
+ // Return the real name for the flag passed on the command line (either an alias name or "flag_name").
+ static const char* real_flag_name(const char *flag_name);
+
+ // Return the "real" name for option arg if arg is an alias, and print a warning if arg is deprecated.
+ // Return NULL if the arg has expired.
+ static const char* handle_aliases_and_deprecation(const char* arg, bool warn);
+ static bool lookup_logging_aliases(const char* arg, char* buffer);
+ static AliasedLoggingFlag catch_logging_aliases(const char* name, bool on);
+ static short CompileOnlyClassesNum;
+ static short CompileOnlyClassesMax;
+ static char** CompileOnlyClasses;
+ static bool* CompileOnlyAllMethods;
+
+ static short CompileOnlyMethodsNum;
+ static short CompileOnlyMethodsMax;
+ static char** CompileOnlyMethods;
+ static bool* CompileOnlyAllClasses;
+
+ static short InterpretOnlyClassesNum;
+ static short InterpretOnlyClassesMax;
+ static char** InterpretOnlyClasses;
+ static bool* InterpretOnlyAllMethods;
+
+ static bool CheckCompileOnly;
+
+ static char* SharedArchivePath;
+
+ public:
+ // Scale compile thresholds
+ // Returns threshold scaled with CompileThresholdScaling
+ static intx scaled_compile_threshold(intx threshold, double scale);
+ static intx scaled_compile_threshold(intx threshold) {
+ return scaled_compile_threshold(threshold, CompileThresholdScaling);
+ }
+ // Returns freq_log scaled with CompileThresholdScaling
+ static intx scaled_freq_log(intx freq_log, double scale);
+ static intx scaled_freq_log(intx freq_log) {
+ return scaled_freq_log(freq_log, CompileThresholdScaling);
+ }
+
+ // Parses the arguments, first phase
+ static jint parse(const JavaVMInitArgs* args);
+ // Apply ergonomics
+ static jint apply_ergo();
+ // Adjusts the arguments after the OS have adjusted the arguments
+ static jint adjust_after_os();
+
+ static void set_gc_specific_flags();
+ static bool gc_selected(); // whether a gc has been selected
+ static void select_gc_ergonomically();
+#if INCLUDE_JVMCI
+ // Check consistency of jvmci vm argument settings.
+ static bool check_jvmci_args_consistency();
+ static void set_jvmci_specific_flags();
+#endif
+ // Check for consistency in the selection of the garbage collector.
+ static bool check_gc_consistency(); // Check user-selected gc
+ // Check consistency or otherwise of VM argument settings
+ static bool check_vm_args_consistency();
+ // Used by os_solaris
+ static bool process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized);
+
+ static size_t conservative_max_heap_alignment() { return _conservative_max_heap_alignment; }
+ // Return the maximum size a heap with compressed oops can take
+ static size_t max_heap_for_compressed_oops();
+
+ // return a char* array containing all options
+ static char** jvm_flags_array() { return _jvm_flags_array; }
+ static char** jvm_args_array() { return _jvm_args_array; }
+ static int num_jvm_flags() { return _num_jvm_flags; }
+ static int num_jvm_args() { return _num_jvm_args; }
+ // return the arguments passed to the Java application
+ static const char* java_command() { return _java_command; }
+
+ // print jvm_flags, jvm_args and java_command
+ static void print_on(outputStream* st);
+ static void print_summary_on(outputStream* st);
+
+ // convenient methods to get and set jvm_flags_file
+ static const char* get_jvm_flags_file() { return _jvm_flags_file; }
+ static void set_jvm_flags_file(const char *value) {
+ if (_jvm_flags_file != NULL) {
+ os::free(_jvm_flags_file);
+ }
+ _jvm_flags_file = os::strdup_check_oom(value);
+ }
+ // convenient methods to obtain / print jvm_flags and jvm_args
+ static const char* jvm_flags() { return build_resource_string(_jvm_flags_array, _num_jvm_flags); }
+ static const char* jvm_args() { return build_resource_string(_jvm_args_array, _num_jvm_args); }
+ static void print_jvm_flags_on(outputStream* st);
+ static void print_jvm_args_on(outputStream* st);
+
+ // -Dkey=value flags
+ static SystemProperty* system_properties() { return _system_properties; }
+ static const char* get_property(const char* key);
+
+ // -Djava.vendor.url.bug
+ static const char* java_vendor_url_bug() { return _java_vendor_url_bug; }
+
+ // -Dsun.java.launcher
+ static const char* sun_java_launcher() { return _sun_java_launcher; }
+ // Was VM created by a Java launcher?
+ static bool created_by_java_launcher();
+ // -Dsun.java.launcher.is_altjvm
+ static bool sun_java_launcher_is_altjvm();
+ // -Dsun.java.launcher.pid
+ static int sun_java_launcher_pid() { return _sun_java_launcher_pid; }
+
+ // -Xms
+ static size_t min_heap_size() { return _min_heap_size; }
+ static void set_min_heap_size(size_t v) { _min_heap_size = v; }
+
+ // -Xrun
+ static AgentLibrary* libraries() { return _libraryList.first(); }
+ static bool init_libraries_at_startup() { return !_libraryList.is_empty(); }
+ static void convert_library_to_agent(AgentLibrary* lib)
+ { _libraryList.remove(lib);
+ _agentList.add(lib); }
+
+ // -agentlib -agentpath
+ static AgentLibrary* agents() { return _agentList.first(); }
+ static bool init_agents_at_startup() { return !_agentList.is_empty(); }
+
+ // abort, exit, vfprintf hooks
+ static abort_hook_t abort_hook() { return _abort_hook; }
+ static exit_hook_t exit_hook() { return _exit_hook; }
+ static vfprintf_hook_t vfprintf_hook() { return _vfprintf_hook; }
+
+ static bool GetCheckCompileOnly () { return CheckCompileOnly; }
+
+ static const char* GetSharedArchivePath() { return SharedArchivePath; }
+
+ static bool CompileMethod(char* className, char* methodName) {
+ return
+ methodExists(
+ className, methodName,
+ CompileOnlyClassesNum, CompileOnlyClasses, CompileOnlyAllMethods,
+ CompileOnlyMethodsNum, CompileOnlyMethods, CompileOnlyAllClasses
+ );
+ }
+
+ // Java launcher properties
+ static void process_sun_java_launcher_properties(JavaVMInitArgs* args);
+
+ // System properties
+ static void init_system_properties();
+
+ // Update/Initialize System properties after JDK version number is known
+ static void init_version_specific_system_properties();
+
+ // Property List manipulation
+ static void PropertyList_add(SystemProperty *element);
+ static void PropertyList_add(SystemProperty** plist, SystemProperty *element);
+ static void PropertyList_add(SystemProperty** plist, const char* k, const char* v, bool writeable, bool internal);
+
+ static void PropertyList_unique_add(SystemProperty** plist, const char* k, const char* v,
+ PropertyAppendable append, PropertyWriteable writeable,
+ PropertyInternal internal);
+ static const char* PropertyList_get_value(SystemProperty* plist, const char* key);
+ static const char* PropertyList_get_readable_value(SystemProperty* plist, const char* key);
+ static int PropertyList_count(SystemProperty* pl);
+ static int PropertyList_readable_count(SystemProperty* pl);
+ static const char* PropertyList_get_key_at(SystemProperty* pl,int index);
+ static char* PropertyList_get_value_at(SystemProperty* pl,int index);
+
+ static bool is_internal_module_property(const char* option);
+
+ // Miscellaneous System property value getter and setters.
+ static void set_dll_dir(const char *value) { _sun_boot_library_path->set_value(value); }
+ static void set_java_home(const char *value) { _java_home->set_value(value); }
+ static void set_library_path(const char *value) { _java_library_path->set_value(value); }
+ static void set_ext_dirs(char *value) { _ext_dirs = os::strdup_check_oom(value); }
+
+ // Set up the underlying pieces of the system boot class path
+ static void add_patch_mod_prefix(const char *module_name, const char *path, bool* patch_mod_javabase);
+ static void set_sysclasspath(const char *value, bool has_jimage) {
+ // During start up, set by os::set_boot_path()
+ assert(get_sysclasspath() == NULL, "System boot class path previously set");
+ _system_boot_class_path->set_value(value);
+ _has_jimage = has_jimage;
+ }
+ static void append_sysclasspath(const char *value) {
+ _system_boot_class_path->append_value(value);
+ _jdk_boot_class_path_append->append_value(value);
+ }
+
+ static GrowableArray<ModulePatchPath*>* get_patch_mod_prefix() { return _patch_mod_prefix; }
+ static char* get_sysclasspath() { return _system_boot_class_path->value(); }
+ static char* get_jdk_boot_class_path_append() { return _jdk_boot_class_path_append->value(); }
+ static bool has_jimage() { return _has_jimage; }
+
+ static char* get_java_home() { return _java_home->value(); }
+ static char* get_dll_dir() { return _sun_boot_library_path->value(); }
+ static char* get_ext_dirs() { return _ext_dirs; }
+ static char* get_appclasspath() { return _java_class_path->value(); }
+ static void fix_appclasspath();
+
+
+ // Operation modi
+ static Mode mode() { return _mode; }
+ static bool is_interpreter_only() { return mode() == _int; }
+
+
+ // Utility: copies src into buf, replacing "%%" with "%" and "%p" with pid.
+ static bool copy_expand_pid(const char* src, size_t srclen, char* buf, size_t buflen);
+
+ static void check_unsupported_dumping_properties() NOT_CDS_RETURN;
+
+ static bool atojulong(const char *s, julong* result);
+};
+
+// Disable options not supported in this release, with a warning if they
+// were explicitly requested on the command-line
+#define UNSUPPORTED_OPTION(opt) \
+do { \
+ if (opt) { \
+ if (FLAG_IS_CMDLINE(opt)) { \
+ warning("-XX:+" #opt " not supported in this VM"); \
+ } \
+ FLAG_SET_DEFAULT(opt, false); \
+ } \
+} while(0)
+
+#endif // SHARE_VM_RUNTIME_ARGUMENTS_HPP