Mercurial > hg > truffle
diff src/share/vm/runtime/arguments.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 28372612af5e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/runtime/arguments.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,511 @@ +/* + * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// 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); +} + +// Forward declarations + +class SysClassPath; + +// Element describing System and User (-Dkey=value flags) defined property. + +class SystemProperty: public CHeapObj { + private: + char* _key; + char* _value; + SystemProperty* _next; + bool _writeable; + bool writeable() { return _writeable; } + + public: + // Accessors + const char* key() const { return _key; } + char* value() const { return _value; } + SystemProperty* next() const { return _next; } + void set_next(SystemProperty* next) { _next = next; } + bool set_value(char *value) { + if (writeable()) { + if (_value != NULL) { + FreeHeap(_value); + } + _value = AllocateHeap(strlen(value)+1); + if (_value != NULL) { + strcpy(_value, value); + } + return true; + } + return false; + } + + 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); + 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; + } + } + } + + // Constructor + SystemProperty(const char* key, const char* value, bool writeable) { + if (key == NULL) { + _key = NULL; + } else { + _key = AllocateHeap(strlen(key)+1); + strcpy(_key, key); + } + if (value == NULL) { + _value = NULL; + } else { + _value = AllocateHeap(strlen(value)+1); + strcpy(_value, value); + } + _next = NULL; + _writeable = writeable; + } +}; + + +// For use by -agentlib, -agentpath and -Xrun +class AgentLibrary : public CHeapObj { + friend class AgentLibraryList; + private: + char* _name; + char* _options; + void* _os_lib; + bool _is_absolute_path; + 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; } + + // Constructor + AgentLibrary(const char* name, const char* options, bool is_absolute_path, void* os_lib) { + _name = AllocateHeap(strlen(name)+1); + strcpy(_name, name); + if (options == NULL) { + _options = NULL; + } else { + _options = AllocateHeap(strlen(options)+1); + strcpy(_options, options); + } + _is_absolute_path = is_absolute_path; + _os_lib = os_lib; + _next = NULL; + } +}; + +// 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; + } +}; + + +class Arguments : AllStatic { + friend class VMStructs; + friend class JvmtiExport; + 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 + }; + + private: + + // 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 *_java_ext_dirs; + static SystemProperty *_java_endorsed_dirs; + static SystemProperty *_sun_boot_library_path; + static SystemProperty *_java_library_path; + static SystemProperty *_java_home; + static SystemProperty *_java_class_path; + static SystemProperty *_sun_boot_class_path; + + // Meta-index for knowing what packages are in the boot class path + static char* _meta_index_path; + static char* _meta_index_dir; + + // 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/gamma launcher + static const char* _sun_java_launcher; + + // sun.java.launcher.pid, private property + static int _sun_java_launcher_pid; + + // Option flags + static bool _has_profile; + static bool _has_alloc_profile; + static const char* _gc_log_filename; + static uintx _initial_heap_size; + 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(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 _Tier2CompileThreshold; + + // GC processing + static int nof_parallel_gc_threads(); + // CMS/ParNew garbage collectors + static void set_parnew_gc_flags(); + static void set_cms_and_parnew_gc_flags(); + // UseParallelGC + static void set_parallel_gc_flags(); + // GC ergonomics + static void set_ergonomics_flags(); + // Based on automatic selection criteria, should the + // low pause collector be used. + static bool should_auto_select_low_pause_collector(); + + // 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); + + // Aggressive optimization flags. + static void set_aggressive_opts_flags(); + + // Argument parsing + static void do_pd_flag_adjustments(); + static bool parse_argument(const char* arg, FlagValueOrigin origin); + static bool process_argument(const char* arg, jboolean ignore_unrecognized, FlagValueOrigin origin); + static void process_java_launcher_argument(const char*, void*); + static void process_java_compiler_argument(char* arg); + static jint parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p); + static jint parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p); + static jint parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p); + static jint parse_vm_init_args(const JavaVMInitArgs* args); + static jint parse_each_vm_init_arg(const JavaVMInitArgs* args, SysClassPath* scp_p, bool* scp_assembly_required_p, FlagValueOrigin origin); + static jint finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required); + 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 bool verify_percentage(uintx value, const char* name); + static void describe_range_error(ArgsRange errcode); + static ArgsRange check_memory_size(jlong size, jlong min_size); + static ArgsRange parse_memory_size(const char* s, jlong* long_arg, + jlong 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 string s is in the list of + // flags made obsolete in 1.5.0. + static bool made_obsolete_in_1_5_0(const char* s); + + 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: + // Parses the arguments + static jint parse(const JavaVMInitArgs* args); + // Check consistecy 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); + + // 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); + + // 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.pid + static int sun_java_launcher_pid() { return _sun_java_launcher_pid; } + + // -Xloggc:<file>, if not specified will be NULL + static const char* gc_log_filename() { return _gc_log_filename; } + + // -Xprof/-Xaprof + static bool has_profile() { return _has_profile; } + static bool has_alloc_profile() { return _has_alloc_profile; } + + // -Xms , -Xmx + static uintx initial_heap_size() { return _initial_heap_size; } + static void set_initial_heap_size(uintx v) { _initial_heap_size = v; } + static uintx min_heap_size() { return _min_heap_size; } + static void set_min_heap_size(uintx 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(); + + // Proptery List manipulation + static void PropertyList_add(SystemProperty** plist, SystemProperty *element); + static void PropertyList_add(SystemProperty** plist, const char* k, char* v); + static void PropertyList_unique_add(SystemProperty** plist, const char* k, char* v); + static const char* PropertyList_get_value(SystemProperty* plist, const char* key); + static int PropertyList_count(SystemProperty* pl); + static const char* PropertyList_get_key_at(SystemProperty* pl,int index); + static char* PropertyList_get_value_at(SystemProperty* pl,int index); + + // Miscellaneous System property value getter and setters. + static void set_dll_dir(char *value) { _sun_boot_library_path->set_value(value); } + static void set_java_home(char *value) { _java_home->set_value(value); } + static void set_library_path(char *value) { _java_library_path->set_value(value); } + static void set_ext_dirs(char *value) { _java_ext_dirs->set_value(value); } + static void set_endorsed_dirs(char *value) { _java_endorsed_dirs->set_value(value); } + static void set_sysclasspath(char *value) { _sun_boot_class_path->set_value(value); } + static void append_sysclasspath(const char *value) { _sun_boot_class_path->append_value(value); } + static void set_meta_index_path(char* meta_index_path, char* meta_index_dir) { + _meta_index_path = meta_index_path; + _meta_index_dir = meta_index_dir; + } + + static char *get_java_home() { return _java_home->value(); } + static char *get_dll_dir() { return _sun_boot_library_path->value(); } + static char *get_endorsed_dir() { return _java_endorsed_dirs->value(); } + static char *get_sysclasspath() { return _sun_boot_class_path->value(); } + static char* get_meta_index_path() { return _meta_index_path; } + static char* get_meta_index_dir() { return _meta_index_dir; } + + // Operation modi + static Mode mode() { return _mode; } + + // 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); + +#ifdef KERNEL + // For java kernel vm, return property string for kernel properties. + static char *get_kernel_properties(); +#endif // KERNEL +};