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/*
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* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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# include "incls/_precompiled.incl"
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# include "incls/_javaClasses.cpp.incl"
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// Helpful macro for computing field offsets at run time rather than hardcoding them
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#define COMPUTE_OFFSET(klass_name_as_C_str, dest_offset, klass_oop, name_symbol, signature_symbol) \
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{ \
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fieldDescriptor fd; \
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instanceKlass* ik = instanceKlass::cast(klass_oop); \
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if (!ik->find_local_field(name_symbol, signature_symbol, &fd)) { \
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fatal("Invalid layout of " klass_name_as_C_str); \
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} \
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dest_offset = fd.offset(); \
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}
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// Same as above but for "optional" offsets that might not be present in certain JDK versions
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#define COMPUTE_OPTIONAL_OFFSET(klass_name_as_C_str, dest_offset, klass_oop, name_symbol, signature_symbol) \
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{ \
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fieldDescriptor fd; \
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instanceKlass* ik = instanceKlass::cast(klass_oop); \
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if (ik->find_local_field(name_symbol, signature_symbol, &fd)) { \
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dest_offset = fd.offset(); \
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} \
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}
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Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) {
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// Create the String object first, so there's a chance that the String
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// and the char array it points to end up in the same cache line.
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oop obj;
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if (tenured) {
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obj = instanceKlass::cast(SystemDictionary::string_klass())->allocate_permanent_instance(CHECK_NH);
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} else {
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obj = instanceKlass::cast(SystemDictionary::string_klass())->allocate_instance(CHECK_NH);
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}
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// Create the char array. The String object must be handlized here
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// because GC can happen as a result of the allocation attempt.
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Handle h_obj(THREAD, obj);
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typeArrayOop buffer;
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if (tenured) {
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buffer = oopFactory::new_permanent_charArray(length, CHECK_NH);
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} else {
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buffer = oopFactory::new_charArray(length, CHECK_NH);
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}
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// Point the String at the char array
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obj = h_obj();
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set_value(obj, buffer);
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// No need to zero the offset, allocation zero'ed the entire String object
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assert(offset(obj) == 0, "initial String offset should be zero");
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//set_offset(obj, 0);
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set_count(obj, length);
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return h_obj;
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}
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Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) {
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Handle h_obj = basic_create(length, tenured, CHECK_NH);
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typeArrayOop buffer = value(h_obj());
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for (int index = 0; index < length; index++) {
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buffer->char_at_put(index, unicode[index]);
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}
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return h_obj;
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}
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Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) {
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return basic_create_from_unicode(unicode, length, false, CHECK_NH);
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}
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Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) {
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return basic_create_from_unicode(unicode, length, true, CHECK_NH);
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}
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oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) {
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Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0);
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return h_obj();
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}
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Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) {
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if (utf8_str == NULL) {
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return Handle();
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}
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int length = UTF8::unicode_length(utf8_str);
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Handle h_obj = basic_create(length, false, CHECK_NH);
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if (length > 0) {
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UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length);
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}
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return h_obj;
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}
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oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) {
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Handle h_obj = create_from_str(utf8_str, CHECK_0);
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return h_obj();
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}
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Handle java_lang_String::create_from_symbol(symbolHandle symbol, TRAPS) {
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int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length());
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Handle h_obj = basic_create(length, false, CHECK_NH);
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if (length > 0) {
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UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length);
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}
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return h_obj;
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}
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// Converts a C string to a Java String based on current encoding
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Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) {
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assert(str != NULL, "bad arguments");
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typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *);
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static to_java_string_fn_t _to_java_string_fn = NULL;
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if (_to_java_string_fn == NULL) {
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void *lib_handle = os::native_java_library();
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_to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, hpi::dll_lookup(lib_handle, "NewStringPlatform"));
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if (_to_java_string_fn == NULL) {
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fatal("NewStringPlatform missing");
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}
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}
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jstring js = NULL;
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{ JavaThread* thread = (JavaThread*)THREAD;
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assert(thread->is_Java_thread(), "must be java thread");
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ThreadToNativeFromVM ttn(thread);
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HandleMark hm(thread);
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js = (_to_java_string_fn)(thread->jni_environment(), str);
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}
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return Handle(THREAD, JNIHandles::resolve(js));
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}
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Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) {
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oop obj = java_string();
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// Typical usage is to convert all '/' to '.' in string.
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typeArrayOop value = java_lang_String::value(obj);
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int offset = java_lang_String::offset(obj);
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int length = java_lang_String::length(obj);
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// First check if any from_char exist
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int index; // Declared outside, used later
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for (index = 0; index < length; index++) {
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if (value->char_at(index + offset) == from_char) {
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break;
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}
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}
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if (index == length) {
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// No from_char, so do not copy.
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return java_string;
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}
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// Create new UNICODE buffer. Must handlize value because GC
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// may happen during String and char array creation.
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typeArrayHandle h_value(THREAD, value);
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Handle string = basic_create(length, false, CHECK_NH);
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typeArrayOop from_buffer = h_value();
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typeArrayOop to_buffer = java_lang_String::value(string());
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// Copy contents
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for (index = 0; index < length; index++) {
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jchar c = from_buffer->char_at(index + offset);
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if (c == from_char) {
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c = to_char;
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}
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to_buffer->char_at_put(index, c);
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}
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return string;
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}
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jchar* java_lang_String::as_unicode_string(oop java_string, int& length) {
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typeArrayOop value = java_lang_String::value(java_string);
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int offset = java_lang_String::offset(java_string);
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length = java_lang_String::length(java_string);
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jchar* result = NEW_RESOURCE_ARRAY(jchar, length);
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for (int index = 0; index < length; index++) {
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result[index] = value->char_at(index + offset);
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}
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return result;
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}
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symbolHandle java_lang_String::as_symbol(Handle java_string, TRAPS) {
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oop obj = java_string();
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typeArrayOop value = java_lang_String::value(obj);
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int offset = java_lang_String::offset(obj);
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int length = java_lang_String::length(obj);
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ResourceMark rm(THREAD);
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symbolHandle result;
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if (length > 0) {
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int utf8_length = UNICODE::utf8_length(value->char_at_addr(offset), length);
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char* chars = NEW_RESOURCE_ARRAY(char, utf8_length + 1);
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UNICODE::convert_to_utf8(value->char_at_addr(offset), length, chars);
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// Allocate the symbol
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result = oopFactory::new_symbol_handle(chars, utf8_length, CHECK_(symbolHandle()));
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} else {
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result = oopFactory::new_symbol_handle("", 0, CHECK_(symbolHandle()));
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}
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return result;
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}
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int java_lang_String::utf8_length(oop java_string) {
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typeArrayOop value = java_lang_String::value(java_string);
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int offset = java_lang_String::offset(java_string);
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int length = java_lang_String::length(java_string);
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jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
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return UNICODE::utf8_length(position, length);
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}
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char* java_lang_String::as_utf8_string(oop java_string) {
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typeArrayOop value = java_lang_String::value(java_string);
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int offset = java_lang_String::offset(java_string);
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int length = java_lang_String::length(java_string);
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jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
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return UNICODE::as_utf8(position, length);
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}
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char* java_lang_String::as_utf8_string(oop java_string, int start, int len) {
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typeArrayOop value = java_lang_String::value(java_string);
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int offset = java_lang_String::offset(java_string);
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int length = java_lang_String::length(java_string);
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assert(start + len <= length, "just checking");
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jchar* position = value->char_at_addr(offset + start);
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return UNICODE::as_utf8(position, len);
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}
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bool java_lang_String::equals(oop java_string, jchar* chars, int len) {
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assert(SharedSkipVerify ||
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java_string->klass() == SystemDictionary::string_klass(),
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"must be java_string");
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typeArrayOop value = java_lang_String::value(java_string);
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int offset = java_lang_String::offset(java_string);
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int length = java_lang_String::length(java_string);
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if (length != len) {
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return false;
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}
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for (int i = 0; i < len; i++) {
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if (value->char_at(i + offset) != chars[i]) {
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return false;
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}
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}
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return true;
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}
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void java_lang_String::print(Handle java_string, outputStream* st) {
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oop obj = java_string();
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assert(obj->klass() == SystemDictionary::string_klass(), "must be java_string");
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typeArrayOop value = java_lang_String::value(obj);
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int offset = java_lang_String::offset(obj);
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int length = java_lang_String::length(obj);
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int end = MIN2(length, 100);
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if (value == NULL) {
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// This can happen if, e.g., printing a String
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// object before its initializer has been called
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st->print_cr("NULL");
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} else {
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st->print("\"");
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for (int index = 0; index < length; index++) {
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st->print("%c", value->char_at(index + offset));
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}
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st->print("\"");
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}
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}
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oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) {
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assert(k->java_mirror() == NULL, "should only assign mirror once");
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// Use this moment of initialization to cache modifier_flags also,
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// to support Class.getModifiers(). Instance classes recalculate
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// the cached flags after the class file is parsed, but before the
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// class is put into the system dictionary.
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int computed_modifiers = k->compute_modifier_flags(CHECK_0);
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k->set_modifier_flags(computed_modifiers);
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if (SystemDictionary::class_klass_loaded()) {
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// Allocate mirror (java.lang.Class instance)
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Handle mirror = instanceKlass::cast(SystemDictionary::class_klass())->allocate_permanent_instance(CHECK_0);
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// Setup indirections
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mirror->obj_field_put(klass_offset, k());
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k->set_java_mirror(mirror());
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// It might also have a component mirror. This mirror must already exist.
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if (k->oop_is_javaArray()) {
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Handle comp_mirror;
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if (k->oop_is_typeArray()) {
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BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type();
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comp_mirror = Universe::java_mirror(type);
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assert(comp_mirror.not_null(), "must have primitive mirror");
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} else if (k->oop_is_objArray()) {
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klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass();
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if (element_klass != NULL
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&& (Klass::cast(element_klass)->oop_is_instance() ||
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Klass::cast(element_klass)->oop_is_javaArray())) {
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comp_mirror = Klass::cast(element_klass)->java_mirror();
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assert(comp_mirror.not_null(), "must have element mirror");
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}
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// else some object array internal to the VM, like systemObjArrayKlassObj
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}
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if (comp_mirror.not_null()) {
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// Two-way link between the array klass and its component mirror:
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arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror());
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set_array_klass(comp_mirror(), k->as_klassOop());
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}
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}
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return mirror();
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} else {
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return NULL;
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}
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}
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oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) {
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// This should be improved by adding a field at the Java level or by
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// introducing a new VM klass (see comment in ClassFileParser)
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oop java_class = instanceKlass::cast(SystemDictionary::class_klass())->allocate_permanent_instance(CHECK_0);
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if (type != T_VOID) {
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klassOop aklass = Universe::typeArrayKlassObj(type);
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assert(aklass != NULL, "correct bootstrap");
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set_array_klass(java_class, aklass);
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}
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return java_class;
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}
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klassOop java_lang_Class::as_klassOop(oop java_class) {
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//%note memory_2
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klassOop k = klassOop(java_class->obj_field(klass_offset));
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assert(k == NULL || k->is_klass(), "type check");
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return k;
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}
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klassOop java_lang_Class::array_klass(oop java_class) {
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klassOop k = klassOop(java_class->obj_field(array_klass_offset));
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assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass");
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return k;
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}
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void java_lang_Class::set_array_klass(oop java_class, klassOop klass) {
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assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass");
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java_class->obj_field_put(array_klass_offset, klass);
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}
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|
367 |
methodOop java_lang_Class::resolved_constructor(oop java_class) {
|
|
368 |
oop constructor = java_class->obj_field(resolved_constructor_offset);
|
|
369 |
assert(constructor == NULL || constructor->is_method(), "should be method");
|
|
370 |
return methodOop(constructor);
|
|
371 |
}
|
|
372 |
|
|
373 |
|
|
374 |
void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) {
|
|
375 |
assert(constructor->is_method(), "should be method");
|
|
376 |
java_class->obj_field_put(resolved_constructor_offset, constructor);
|
|
377 |
}
|
|
378 |
|
|
379 |
|
|
380 |
bool java_lang_Class::is_primitive(oop java_class) {
|
|
381 |
klassOop k = klassOop(java_class->obj_field(klass_offset));
|
|
382 |
return k == NULL;
|
|
383 |
}
|
|
384 |
|
|
385 |
|
|
386 |
BasicType java_lang_Class::primitive_type(oop java_class) {
|
|
387 |
assert(java_lang_Class::is_primitive(java_class), "just checking");
|
|
388 |
klassOop ak = klassOop(java_class->obj_field(array_klass_offset));
|
|
389 |
BasicType type = T_VOID;
|
|
390 |
if (ak != NULL) {
|
|
391 |
// Note: create_basic_type_mirror above initializes ak to a non-null value.
|
|
392 |
type = arrayKlass::cast(ak)->element_type();
|
|
393 |
} else {
|
|
394 |
assert(java_class == Universe::void_mirror(), "only valid non-array primitive");
|
|
395 |
}
|
|
396 |
assert(Universe::java_mirror(type) == java_class, "must be consistent");
|
|
397 |
return type;
|
|
398 |
}
|
|
399 |
|
|
400 |
|
|
401 |
oop java_lang_Class::primitive_mirror(BasicType t) {
|
|
402 |
oop mirror = Universe::java_mirror(t);
|
|
403 |
assert(mirror != NULL && mirror->is_a(SystemDictionary::class_klass()), "must be a Class");
|
|
404 |
assert(java_lang_Class::is_primitive(mirror), "must be primitive");
|
|
405 |
return mirror;
|
|
406 |
}
|
|
407 |
|
|
408 |
bool java_lang_Class::offsets_computed = false;
|
|
409 |
int java_lang_Class::classRedefinedCount_offset = -1;
|
|
410 |
|
|
411 |
void java_lang_Class::compute_offsets() {
|
|
412 |
assert(!offsets_computed, "offsets should be initialized only once");
|
|
413 |
offsets_computed = true;
|
|
414 |
|
|
415 |
klassOop k = SystemDictionary::class_klass();
|
|
416 |
// The classRedefinedCount field is only present starting in 1.5,
|
|
417 |
// so don't go fatal.
|
|
418 |
COMPUTE_OPTIONAL_OFFSET("java.lang.Class", classRedefinedCount_offset,
|
|
419 |
k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature());
|
|
420 |
}
|
|
421 |
|
|
422 |
int java_lang_Class::classRedefinedCount(oop the_class_mirror) {
|
|
423 |
if (!JDK_Version::is_gte_jdk15x_version()
|
|
424 |
|| classRedefinedCount_offset == -1) {
|
|
425 |
// The classRedefinedCount field is only present starting in 1.5.
|
|
426 |
// If we don't have an offset for it then just return -1 as a marker.
|
|
427 |
return -1;
|
|
428 |
}
|
|
429 |
|
|
430 |
return the_class_mirror->int_field(classRedefinedCount_offset);
|
|
431 |
}
|
|
432 |
|
|
433 |
void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) {
|
|
434 |
if (!JDK_Version::is_gte_jdk15x_version()
|
|
435 |
|| classRedefinedCount_offset == -1) {
|
|
436 |
// The classRedefinedCount field is only present starting in 1.5.
|
|
437 |
// If we don't have an offset for it then nothing to set.
|
|
438 |
return;
|
|
439 |
}
|
|
440 |
|
|
441 |
the_class_mirror->int_field_put(classRedefinedCount_offset, value);
|
|
442 |
}
|
|
443 |
|
|
444 |
|
|
445 |
// Note: JDK1.1 and before had a privateInfo_offset field which was used for the
|
|
446 |
// platform thread structure, and a eetop offset which was used for thread
|
|
447 |
// local storage (and unused by the HotSpot VM). In JDK1.2 the two structures
|
|
448 |
// merged, so in the HotSpot VM we just use the eetop field for the thread
|
|
449 |
// instead of the privateInfo_offset.
|
|
450 |
//
|
|
451 |
// Note: The stackSize field is only present starting in 1.4.
|
|
452 |
|
|
453 |
int java_lang_Thread::_name_offset = 0;
|
|
454 |
int java_lang_Thread::_group_offset = 0;
|
|
455 |
int java_lang_Thread::_contextClassLoader_offset = 0;
|
|
456 |
int java_lang_Thread::_inheritedAccessControlContext_offset = 0;
|
|
457 |
int java_lang_Thread::_priority_offset = 0;
|
|
458 |
int java_lang_Thread::_eetop_offset = 0;
|
|
459 |
int java_lang_Thread::_daemon_offset = 0;
|
|
460 |
int java_lang_Thread::_stillborn_offset = 0;
|
|
461 |
int java_lang_Thread::_stackSize_offset = 0;
|
|
462 |
int java_lang_Thread::_tid_offset = 0;
|
|
463 |
int java_lang_Thread::_thread_status_offset = 0;
|
|
464 |
int java_lang_Thread::_park_blocker_offset = 0;
|
|
465 |
int java_lang_Thread::_park_event_offset = 0 ;
|
|
466 |
|
|
467 |
|
|
468 |
void java_lang_Thread::compute_offsets() {
|
|
469 |
assert(_group_offset == 0, "offsets should be initialized only once");
|
|
470 |
|
|
471 |
klassOop k = SystemDictionary::thread_klass();
|
|
472 |
COMPUTE_OFFSET("java.lang.Thread", _name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature());
|
|
473 |
COMPUTE_OFFSET("java.lang.Thread", _group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature());
|
|
474 |
COMPUTE_OFFSET("java.lang.Thread", _contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature());
|
|
475 |
COMPUTE_OFFSET("java.lang.Thread", _inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature());
|
|
476 |
COMPUTE_OFFSET("java.lang.Thread", _priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature());
|
|
477 |
COMPUTE_OFFSET("java.lang.Thread", _daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
|
|
478 |
COMPUTE_OFFSET("java.lang.Thread", _eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature());
|
|
479 |
COMPUTE_OFFSET("java.lang.Thread", _stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature());
|
|
480 |
// The stackSize field is only present starting in 1.4, so don't go fatal.
|
|
481 |
COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature());
|
|
482 |
// The tid and thread_status fields are only present starting in 1.5, so don't go fatal.
|
|
483 |
COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature());
|
|
484 |
COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature());
|
|
485 |
// The parkBlocker field is only present starting in 1.6, so don't go fatal.
|
|
486 |
COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature());
|
|
487 |
COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _park_event_offset, k, vmSymbols::park_event_name(),
|
|
488 |
vmSymbols::long_signature());
|
|
489 |
}
|
|
490 |
|
|
491 |
|
|
492 |
JavaThread* java_lang_Thread::thread(oop java_thread) {
|
|
493 |
return (JavaThread*) java_thread->obj_field(_eetop_offset);
|
|
494 |
}
|
|
495 |
|
|
496 |
|
|
497 |
void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) {
|
|
498 |
// We are storing a JavaThread* (malloc'ed data) into a long field in the thread
|
|
499 |
// object. The store has to be 64-bit wide so we use a pointer store, but we
|
|
500 |
// cannot call oopDesc::obj_field_put since it includes a write barrier!
|
|
501 |
oop* addr = java_thread->obj_field_addr(_eetop_offset);
|
|
502 |
*addr = (oop) thread;
|
|
503 |
}
|
|
504 |
|
|
505 |
|
|
506 |
typeArrayOop java_lang_Thread::name(oop java_thread) {
|
|
507 |
oop name = java_thread->obj_field(_name_offset);
|
|
508 |
assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking");
|
|
509 |
return typeArrayOop(name);
|
|
510 |
}
|
|
511 |
|
|
512 |
|
|
513 |
void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) {
|
|
514 |
assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL");
|
|
515 |
java_thread->obj_field_put(_name_offset, name);
|
|
516 |
}
|
|
517 |
|
|
518 |
|
|
519 |
ThreadPriority java_lang_Thread::priority(oop java_thread) {
|
|
520 |
return (ThreadPriority)java_thread->int_field(_priority_offset);
|
|
521 |
}
|
|
522 |
|
|
523 |
|
|
524 |
void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) {
|
|
525 |
java_thread->int_field_put(_priority_offset, priority);
|
|
526 |
}
|
|
527 |
|
|
528 |
|
|
529 |
oop java_lang_Thread::threadGroup(oop java_thread) {
|
|
530 |
return java_thread->obj_field(_group_offset);
|
|
531 |
}
|
|
532 |
|
|
533 |
|
|
534 |
bool java_lang_Thread::is_stillborn(oop java_thread) {
|
|
535 |
return java_thread->bool_field(_stillborn_offset) != 0;
|
|
536 |
}
|
|
537 |
|
|
538 |
|
|
539 |
// We never have reason to turn the stillborn bit off
|
|
540 |
void java_lang_Thread::set_stillborn(oop java_thread) {
|
|
541 |
java_thread->bool_field_put(_stillborn_offset, true);
|
|
542 |
}
|
|
543 |
|
|
544 |
|
|
545 |
bool java_lang_Thread::is_alive(oop java_thread) {
|
|
546 |
JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
547 |
return (thr != NULL);
|
|
548 |
}
|
|
549 |
|
|
550 |
|
|
551 |
bool java_lang_Thread::is_daemon(oop java_thread) {
|
|
552 |
return java_thread->bool_field(_daemon_offset) != 0;
|
|
553 |
}
|
|
554 |
|
|
555 |
|
|
556 |
void java_lang_Thread::set_daemon(oop java_thread) {
|
|
557 |
java_thread->bool_field_put(_daemon_offset, true);
|
|
558 |
}
|
|
559 |
|
|
560 |
oop java_lang_Thread::context_class_loader(oop java_thread) {
|
|
561 |
return java_thread->obj_field(_contextClassLoader_offset);
|
|
562 |
}
|
|
563 |
|
|
564 |
oop java_lang_Thread::inherited_access_control_context(oop java_thread) {
|
|
565 |
return java_thread->obj_field(_inheritedAccessControlContext_offset);
|
|
566 |
}
|
|
567 |
|
|
568 |
|
|
569 |
jlong java_lang_Thread::stackSize(oop java_thread) {
|
|
570 |
// The stackSize field is only present starting in 1.4
|
|
571 |
if (_stackSize_offset > 0) {
|
|
572 |
assert(JDK_Version::is_gte_jdk14x_version(), "sanity check");
|
|
573 |
return java_thread->long_field(_stackSize_offset);
|
|
574 |
} else {
|
|
575 |
return 0;
|
|
576 |
}
|
|
577 |
}
|
|
578 |
|
|
579 |
// Write the thread status value to threadStatus field in java.lang.Thread java class.
|
|
580 |
void java_lang_Thread::set_thread_status(oop java_thread,
|
|
581 |
java_lang_Thread::ThreadStatus status) {
|
|
582 |
assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm");
|
|
583 |
// The threadStatus is only present starting in 1.5
|
|
584 |
if (_thread_status_offset > 0) {
|
|
585 |
java_thread->int_field_put(_thread_status_offset, status);
|
|
586 |
}
|
|
587 |
}
|
|
588 |
|
|
589 |
// Read thread status value from threadStatus field in java.lang.Thread java class.
|
|
590 |
java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) {
|
|
591 |
assert(Thread::current()->is_VM_thread() ||
|
|
592 |
JavaThread::current()->thread_state() == _thread_in_vm,
|
|
593 |
"Java Thread is not running in vm");
|
|
594 |
// The threadStatus is only present starting in 1.5
|
|
595 |
if (_thread_status_offset > 0) {
|
|
596 |
return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
|
|
597 |
} else {
|
|
598 |
// All we can easily figure out is if it is alive, but that is
|
|
599 |
// enough info for a valid unknown status.
|
|
600 |
// These aren't restricted to valid set ThreadStatus values, so
|
|
601 |
// use JVMTI values and cast.
|
|
602 |
JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
603 |
if (thr == NULL) {
|
|
604 |
// the thread hasn't run yet or is in the process of exiting
|
|
605 |
return NEW;
|
|
606 |
}
|
|
607 |
return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE;
|
|
608 |
}
|
|
609 |
}
|
|
610 |
|
|
611 |
|
|
612 |
jlong java_lang_Thread::thread_id(oop java_thread) {
|
|
613 |
// The thread ID field is only present starting in 1.5
|
|
614 |
if (_tid_offset > 0) {
|
|
615 |
return java_thread->long_field(_tid_offset);
|
|
616 |
} else {
|
|
617 |
return 0;
|
|
618 |
}
|
|
619 |
}
|
|
620 |
|
|
621 |
oop java_lang_Thread::park_blocker(oop java_thread) {
|
|
622 |
assert(JDK_Version::supports_thread_park_blocker() && _park_blocker_offset != 0,
|
|
623 |
"Must support parkBlocker field");
|
|
624 |
|
|
625 |
if (_park_blocker_offset > 0) {
|
|
626 |
return java_thread->obj_field(_park_blocker_offset);
|
|
627 |
}
|
|
628 |
|
|
629 |
return NULL;
|
|
630 |
}
|
|
631 |
|
|
632 |
jlong java_lang_Thread::park_event(oop java_thread) {
|
|
633 |
if (_park_event_offset > 0) {
|
|
634 |
return java_thread->long_field(_park_event_offset);
|
|
635 |
}
|
|
636 |
return 0;
|
|
637 |
}
|
|
638 |
|
|
639 |
bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) {
|
|
640 |
if (_park_event_offset > 0) {
|
|
641 |
java_thread->long_field_put(_park_event_offset, ptr);
|
|
642 |
return true;
|
|
643 |
}
|
|
644 |
return false;
|
|
645 |
}
|
|
646 |
|
|
647 |
|
|
648 |
const char* java_lang_Thread::thread_status_name(oop java_thread) {
|
|
649 |
assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status");
|
|
650 |
ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
|
|
651 |
switch (status) {
|
|
652 |
case NEW : return "NEW";
|
|
653 |
case RUNNABLE : return "RUNNABLE";
|
|
654 |
case SLEEPING : return "TIMED_WAITING (sleeping)";
|
|
655 |
case IN_OBJECT_WAIT : return "WAITING (on object monitor)";
|
|
656 |
case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)";
|
|
657 |
case PARKED : return "WAITING (parking)";
|
|
658 |
case PARKED_TIMED : return "TIMED_WAITING (parking)";
|
|
659 |
case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)";
|
|
660 |
case TERMINATED : return "TERMINATED";
|
|
661 |
default : return "UNKNOWN";
|
|
662 |
};
|
|
663 |
}
|
|
664 |
int java_lang_ThreadGroup::_parent_offset = 0;
|
|
665 |
int java_lang_ThreadGroup::_name_offset = 0;
|
|
666 |
int java_lang_ThreadGroup::_threads_offset = 0;
|
|
667 |
int java_lang_ThreadGroup::_groups_offset = 0;
|
|
668 |
int java_lang_ThreadGroup::_maxPriority_offset = 0;
|
|
669 |
int java_lang_ThreadGroup::_destroyed_offset = 0;
|
|
670 |
int java_lang_ThreadGroup::_daemon_offset = 0;
|
|
671 |
int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0;
|
|
672 |
int java_lang_ThreadGroup::_nthreads_offset = 0;
|
|
673 |
int java_lang_ThreadGroup::_ngroups_offset = 0;
|
|
674 |
|
|
675 |
oop java_lang_ThreadGroup::parent(oop java_thread_group) {
|
|
676 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
677 |
return java_thread_group->obj_field(_parent_offset);
|
|
678 |
}
|
|
679 |
|
|
680 |
// ("name as oop" accessor is not necessary)
|
|
681 |
|
|
682 |
typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) {
|
|
683 |
oop name = java_thread_group->obj_field(_name_offset);
|
|
684 |
// ThreadGroup.name can be null
|
|
685 |
return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name);
|
|
686 |
}
|
|
687 |
|
|
688 |
int java_lang_ThreadGroup::nthreads(oop java_thread_group) {
|
|
689 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
690 |
return java_thread_group->int_field(_nthreads_offset);
|
|
691 |
}
|
|
692 |
|
|
693 |
objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) {
|
|
694 |
oop threads = java_thread_group->obj_field(_threads_offset);
|
|
695 |
assert(threads != NULL, "threadgroups should have threads");
|
|
696 |
assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code
|
|
697 |
return objArrayOop(threads);
|
|
698 |
}
|
|
699 |
|
|
700 |
int java_lang_ThreadGroup::ngroups(oop java_thread_group) {
|
|
701 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
702 |
return java_thread_group->int_field(_ngroups_offset);
|
|
703 |
}
|
|
704 |
|
|
705 |
objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) {
|
|
706 |
oop groups = java_thread_group->obj_field(_groups_offset);
|
|
707 |
assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code
|
|
708 |
return objArrayOop(groups);
|
|
709 |
}
|
|
710 |
|
|
711 |
ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) {
|
|
712 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
713 |
return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset);
|
|
714 |
}
|
|
715 |
|
|
716 |
bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) {
|
|
717 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
718 |
return java_thread_group->bool_field(_destroyed_offset) != 0;
|
|
719 |
}
|
|
720 |
|
|
721 |
bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) {
|
|
722 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
723 |
return java_thread_group->bool_field(_daemon_offset) != 0;
|
|
724 |
}
|
|
725 |
|
|
726 |
bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) {
|
|
727 |
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
728 |
return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0;
|
|
729 |
}
|
|
730 |
|
|
731 |
void java_lang_ThreadGroup::compute_offsets() {
|
|
732 |
assert(_parent_offset == 0, "offsets should be initialized only once");
|
|
733 |
|
|
734 |
klassOop k = SystemDictionary::threadGroup_klass();
|
|
735 |
|
|
736 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature());
|
|
737 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
738 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature());
|
|
739 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature());
|
|
740 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature());
|
|
741 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature());
|
|
742 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
|
|
743 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature());
|
|
744 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature());
|
|
745 |
COMPUTE_OFFSET("java.lang.ThreadGroup", _ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature());
|
|
746 |
}
|
|
747 |
|
|
748 |
oop java_lang_Throwable::backtrace(oop throwable) {
|
|
749 |
return throwable->obj_field_acquire(backtrace_offset);
|
|
750 |
}
|
|
751 |
|
|
752 |
|
|
753 |
void java_lang_Throwable::set_backtrace(oop throwable, oop value) {
|
|
754 |
throwable->release_obj_field_put(backtrace_offset, value);
|
|
755 |
}
|
|
756 |
|
|
757 |
|
|
758 |
oop java_lang_Throwable::message(oop throwable) {
|
|
759 |
return throwable->obj_field(detailMessage_offset);
|
|
760 |
}
|
|
761 |
|
|
762 |
|
|
763 |
oop java_lang_Throwable::message(Handle throwable) {
|
|
764 |
return throwable->obj_field(detailMessage_offset);
|
|
765 |
}
|
|
766 |
|
|
767 |
|
|
768 |
void java_lang_Throwable::set_message(oop throwable, oop value) {
|
|
769 |
throwable->obj_field_put(detailMessage_offset, value);
|
|
770 |
}
|
|
771 |
|
|
772 |
|
|
773 |
void java_lang_Throwable::clear_stacktrace(oop throwable) {
|
|
774 |
assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
|
|
775 |
throwable->obj_field_put(stackTrace_offset, NULL);
|
|
776 |
}
|
|
777 |
|
|
778 |
|
|
779 |
void java_lang_Throwable::print(oop throwable, outputStream* st) {
|
|
780 |
ResourceMark rm;
|
|
781 |
klassOop k = throwable->klass();
|
|
782 |
assert(k != NULL, "just checking");
|
|
783 |
st->print("%s", instanceKlass::cast(k)->external_name());
|
|
784 |
oop msg = message(throwable);
|
|
785 |
if (msg != NULL) {
|
|
786 |
st->print(": %s", java_lang_String::as_utf8_string(msg));
|
|
787 |
}
|
|
788 |
}
|
|
789 |
|
|
790 |
|
|
791 |
void java_lang_Throwable::print(Handle throwable, outputStream* st) {
|
|
792 |
ResourceMark rm;
|
|
793 |
klassOop k = throwable->klass();
|
|
794 |
assert(k != NULL, "just checking");
|
|
795 |
st->print("%s", instanceKlass::cast(k)->external_name());
|
|
796 |
oop msg = message(throwable);
|
|
797 |
if (msg != NULL) {
|
|
798 |
st->print(": %s", java_lang_String::as_utf8_string(msg));
|
|
799 |
}
|
|
800 |
}
|
|
801 |
|
|
802 |
// Print stack trace element to resource allocated buffer
|
|
803 |
char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) {
|
|
804 |
// Get strings and string lengths
|
|
805 |
instanceKlass* klass = instanceKlass::cast(method->method_holder());
|
|
806 |
const char* klass_name = klass->external_name();
|
|
807 |
int buf_len = (int)strlen(klass_name);
|
|
808 |
char* source_file_name;
|
|
809 |
if (klass->source_file_name() == NULL) {
|
|
810 |
source_file_name = NULL;
|
|
811 |
} else {
|
|
812 |
source_file_name = klass->source_file_name()->as_C_string();
|
|
813 |
buf_len += (int)strlen(source_file_name);
|
|
814 |
}
|
|
815 |
char* method_name = method->name()->as_C_string();
|
|
816 |
buf_len += (int)strlen(method_name);
|
|
817 |
|
|
818 |
// Allocate temporary buffer with extra space for formatting and line number
|
|
819 |
char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64);
|
|
820 |
|
|
821 |
// Print stack trace line in buffer
|
|
822 |
sprintf(buf, "\tat %s.%s", klass_name, method_name);
|
|
823 |
if (method->is_native()) {
|
|
824 |
strcat(buf, "(Native Method)");
|
|
825 |
} else {
|
|
826 |
int line_number = method->line_number_from_bci(bci);
|
|
827 |
if (source_file_name != NULL && (line_number != -1)) {
|
|
828 |
// Sourcename and linenumber
|
|
829 |
sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number);
|
|
830 |
} else if (source_file_name != NULL) {
|
|
831 |
// Just sourcename
|
|
832 |
sprintf(buf + (int)strlen(buf), "(%s)", source_file_name);
|
|
833 |
} else {
|
|
834 |
// Neither soucename and linenumber
|
|
835 |
sprintf(buf + (int)strlen(buf), "(Unknown Source)");
|
|
836 |
}
|
|
837 |
nmethod* nm = method->code();
|
|
838 |
if (WizardMode && nm != NULL) {
|
|
839 |
sprintf(buf + (int)strlen(buf), "(nmethod %#x)", nm);
|
|
840 |
}
|
|
841 |
}
|
|
842 |
|
|
843 |
return buf;
|
|
844 |
}
|
|
845 |
|
|
846 |
|
|
847 |
void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) {
|
|
848 |
ResourceMark rm;
|
|
849 |
char* buf = print_stack_element_to_buffer(method, bci);
|
|
850 |
print_to_stream(stream, buf);
|
|
851 |
}
|
|
852 |
|
|
853 |
void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) {
|
|
854 |
ResourceMark rm;
|
|
855 |
char* buf = print_stack_element_to_buffer(method, bci);
|
|
856 |
st->print_cr("%s", buf);
|
|
857 |
}
|
|
858 |
|
|
859 |
void java_lang_Throwable::print_to_stream(Handle stream, const char* str) {
|
|
860 |
if (stream.is_null()) {
|
|
861 |
tty->print_cr("%s", str);
|
|
862 |
} else {
|
|
863 |
EXCEPTION_MARK;
|
|
864 |
JavaValue result(T_VOID);
|
|
865 |
Handle arg (THREAD, oopFactory::new_charArray(str, THREAD));
|
|
866 |
if (!HAS_PENDING_EXCEPTION) {
|
|
867 |
JavaCalls::call_virtual(&result,
|
|
868 |
stream,
|
|
869 |
KlassHandle(THREAD, stream->klass()),
|
|
870 |
vmSymbolHandles::println_name(),
|
|
871 |
vmSymbolHandles::char_array_void_signature(),
|
|
872 |
arg,
|
|
873 |
THREAD);
|
|
874 |
}
|
|
875 |
// Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
|
|
876 |
if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
|
|
877 |
}
|
|
878 |
|
|
879 |
}
|
|
880 |
|
|
881 |
|
|
882 |
const char* java_lang_Throwable::no_stack_trace_message() {
|
|
883 |
return "\t<<no stack trace available>>";
|
|
884 |
}
|
|
885 |
|
|
886 |
|
|
887 |
// Currently used only for exceptions occurring during startup
|
|
888 |
void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) {
|
|
889 |
Thread *THREAD = Thread::current();
|
|
890 |
Handle h_throwable(THREAD, throwable);
|
|
891 |
while (h_throwable.not_null()) {
|
|
892 |
objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable())));
|
|
893 |
if (result.is_null()) {
|
|
894 |
st->print_cr(no_stack_trace_message());
|
|
895 |
return;
|
|
896 |
}
|
|
897 |
|
|
898 |
while (result.not_null()) {
|
|
899 |
objArrayHandle methods (THREAD,
|
|
900 |
objArrayOop(result->obj_at(trace_methods_offset)));
|
|
901 |
typeArrayHandle bcis (THREAD,
|
|
902 |
typeArrayOop(result->obj_at(trace_bcis_offset)));
|
|
903 |
|
|
904 |
if (methods.is_null() || bcis.is_null()) {
|
|
905 |
st->print_cr(no_stack_trace_message());
|
|
906 |
return;
|
|
907 |
}
|
|
908 |
|
|
909 |
int length = methods()->length();
|
|
910 |
for (int index = 0; index < length; index++) {
|
|
911 |
methodOop method = methodOop(methods()->obj_at(index));
|
|
912 |
if (method == NULL) goto handle_cause;
|
|
913 |
int bci = bcis->ushort_at(index);
|
|
914 |
print_stack_element(st, method, bci);
|
|
915 |
}
|
|
916 |
result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset)));
|
|
917 |
}
|
|
918 |
handle_cause:
|
|
919 |
{
|
|
920 |
EXCEPTION_MARK;
|
|
921 |
JavaValue result(T_OBJECT);
|
|
922 |
JavaCalls::call_virtual(&result,
|
|
923 |
h_throwable,
|
|
924 |
KlassHandle(THREAD, h_throwable->klass()),
|
|
925 |
vmSymbolHandles::getCause_name(),
|
|
926 |
vmSymbolHandles::void_throwable_signature(),
|
|
927 |
THREAD);
|
|
928 |
// Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
|
|
929 |
if (HAS_PENDING_EXCEPTION) {
|
|
930 |
CLEAR_PENDING_EXCEPTION;
|
|
931 |
h_throwable = Handle();
|
|
932 |
} else {
|
|
933 |
h_throwable = Handle(THREAD, (oop) result.get_jobject());
|
|
934 |
if (h_throwable.not_null()) {
|
|
935 |
st->print("Caused by: ");
|
|
936 |
print(h_throwable, st);
|
|
937 |
st->cr();
|
|
938 |
}
|
|
939 |
}
|
|
940 |
}
|
|
941 |
}
|
|
942 |
}
|
|
943 |
|
|
944 |
|
|
945 |
void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) {
|
|
946 |
// Note: this is no longer used in Merlin, but we support it for compatibility.
|
|
947 |
Thread *thread = Thread::current();
|
|
948 |
Handle stream(thread, print_stream);
|
|
949 |
objArrayHandle result (thread, objArrayOop(backtrace(throwable)));
|
|
950 |
if (result.is_null()) {
|
|
951 |
print_to_stream(stream, no_stack_trace_message());
|
|
952 |
return;
|
|
953 |
}
|
|
954 |
|
|
955 |
while (result.not_null()) {
|
|
956 |
objArrayHandle methods (thread,
|
|
957 |
objArrayOop(result->obj_at(trace_methods_offset)));
|
|
958 |
typeArrayHandle bcis (thread,
|
|
959 |
typeArrayOop(result->obj_at(trace_bcis_offset)));
|
|
960 |
|
|
961 |
if (methods.is_null() || bcis.is_null()) {
|
|
962 |
print_to_stream(stream, no_stack_trace_message());
|
|
963 |
return;
|
|
964 |
}
|
|
965 |
|
|
966 |
int length = methods()->length();
|
|
967 |
for (int index = 0; index < length; index++) {
|
|
968 |
methodOop method = methodOop(methods()->obj_at(index));
|
|
969 |
if (method == NULL) return;
|
|
970 |
int bci = bcis->ushort_at(index);
|
|
971 |
print_stack_element(stream, method, bci);
|
|
972 |
}
|
|
973 |
result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset)));
|
|
974 |
}
|
|
975 |
}
|
|
976 |
|
|
977 |
// This class provides a simple wrapper over the internal structure of
|
|
978 |
// exception backtrace to insulate users of the backtrace from needing
|
|
979 |
// to know what it looks like.
|
|
980 |
class BacktraceBuilder: public StackObj {
|
|
981 |
private:
|
|
982 |
Handle _backtrace;
|
|
983 |
objArrayOop _head;
|
|
984 |
objArrayOop _methods;
|
|
985 |
typeArrayOop _bcis;
|
|
986 |
int _index;
|
|
987 |
bool _dirty;
|
|
988 |
bool _done;
|
|
989 |
No_Safepoint_Verifier _nsv;
|
|
990 |
|
|
991 |
public:
|
|
992 |
|
|
993 |
enum {
|
|
994 |
trace_methods_offset = java_lang_Throwable::trace_methods_offset,
|
|
995 |
trace_bcis_offset = java_lang_Throwable::trace_bcis_offset,
|
|
996 |
trace_next_offset = java_lang_Throwable::trace_next_offset,
|
|
997 |
trace_size = java_lang_Throwable::trace_size,
|
|
998 |
trace_chunk_size = java_lang_Throwable::trace_chunk_size
|
|
999 |
};
|
|
1000 |
|
|
1001 |
// constructor for new backtrace
|
|
1002 |
BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) {
|
|
1003 |
expand(CHECK);
|
|
1004 |
_backtrace = _head;
|
|
1005 |
_index = 0;
|
|
1006 |
_dirty = false;
|
|
1007 |
_done = false;
|
|
1008 |
}
|
|
1009 |
|
|
1010 |
void flush() {
|
|
1011 |
if (_dirty && _methods != NULL) {
|
|
1012 |
BarrierSet* bs = Universe::heap()->barrier_set();
|
|
1013 |
assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
|
|
1014 |
bs->write_ref_array(MemRegion((HeapWord*)_methods->obj_at_addr(0),
|
|
1015 |
_methods->length() * HeapWordsPerOop));
|
|
1016 |
_dirty = false;
|
|
1017 |
}
|
|
1018 |
}
|
|
1019 |
|
|
1020 |
void expand(TRAPS) {
|
|
1021 |
flush();
|
|
1022 |
|
|
1023 |
objArrayHandle old_head(THREAD, _head);
|
|
1024 |
Pause_No_Safepoint_Verifier pnsv(&_nsv);
|
|
1025 |
|
|
1026 |
objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK);
|
|
1027 |
objArrayHandle new_head(THREAD, head);
|
|
1028 |
|
|
1029 |
objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK);
|
|
1030 |
objArrayHandle new_methods(THREAD, methods);
|
|
1031 |
|
|
1032 |
typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK);
|
|
1033 |
typeArrayHandle new_bcis(THREAD, bcis);
|
|
1034 |
|
|
1035 |
if (!old_head.is_null()) {
|
|
1036 |
old_head->obj_at_put(trace_next_offset, new_head());
|
|
1037 |
}
|
|
1038 |
new_head->obj_at_put(trace_methods_offset, new_methods());
|
|
1039 |
new_head->obj_at_put(trace_bcis_offset, new_bcis());
|
|
1040 |
|
|
1041 |
_head = new_head();
|
|
1042 |
_methods = new_methods();
|
|
1043 |
_bcis = new_bcis();
|
|
1044 |
_index = 0;
|
|
1045 |
}
|
|
1046 |
|
|
1047 |
oop backtrace() {
|
|
1048 |
flush();
|
|
1049 |
return _backtrace();
|
|
1050 |
}
|
|
1051 |
|
|
1052 |
inline void push(methodOop method, short bci, TRAPS) {
|
|
1053 |
if (_index >= trace_chunk_size) {
|
|
1054 |
methodHandle mhandle(THREAD, method);
|
|
1055 |
expand(CHECK);
|
|
1056 |
method = mhandle();
|
|
1057 |
}
|
|
1058 |
|
|
1059 |
// _methods->obj_at_put(_index, method);
|
|
1060 |
*_methods->obj_at_addr(_index) = method;
|
|
1061 |
_bcis->ushort_at_put(_index, bci);
|
|
1062 |
_index++;
|
|
1063 |
_dirty = true;
|
|
1064 |
}
|
|
1065 |
|
|
1066 |
methodOop current_method() {
|
|
1067 |
assert(_index >= 0 && _index < trace_chunk_size, "out of range");
|
|
1068 |
return methodOop(_methods->obj_at(_index));
|
|
1069 |
}
|
|
1070 |
|
|
1071 |
jushort current_bci() {
|
|
1072 |
assert(_index >= 0 && _index < trace_chunk_size, "out of range");
|
|
1073 |
return _bcis->ushort_at(_index);
|
|
1074 |
}
|
|
1075 |
};
|
|
1076 |
|
|
1077 |
|
|
1078 |
void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) {
|
|
1079 |
if (!StackTraceInThrowable) return;
|
|
1080 |
ResourceMark rm(THREAD);
|
|
1081 |
|
|
1082 |
// Start out by clearing the backtrace for this object, in case the VM
|
|
1083 |
// runs out of memory while allocating the stack trace
|
|
1084 |
set_backtrace(throwable(), NULL);
|
|
1085 |
if (JDK_Version::is_gte_jdk14x_version()) {
|
|
1086 |
// New since 1.4, clear lazily constructed Java level stacktrace if
|
|
1087 |
// refilling occurs
|
|
1088 |
clear_stacktrace(throwable());
|
|
1089 |
}
|
|
1090 |
|
|
1091 |
int max_depth = MaxJavaStackTraceDepth;
|
|
1092 |
JavaThread* thread = (JavaThread*)THREAD;
|
|
1093 |
BacktraceBuilder bt(CHECK);
|
|
1094 |
|
|
1095 |
// Instead of using vframe directly, this version of fill_in_stack_trace
|
|
1096 |
// basically handles everything by hand. This significantly improved the
|
|
1097 |
// speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows.
|
|
1098 |
// See bug 6333838 for more details.
|
|
1099 |
// The "ASSERT" here is to verify this method generates the exactly same stack
|
|
1100 |
// trace as utilizing vframe.
|
|
1101 |
#ifdef ASSERT
|
|
1102 |
vframeStream st(thread);
|
|
1103 |
methodHandle st_method(THREAD, st.method());
|
|
1104 |
#endif
|
|
1105 |
int total_count = 0;
|
|
1106 |
RegisterMap map(thread, false);
|
|
1107 |
int decode_offset = 0;
|
|
1108 |
nmethod* nm = NULL;
|
|
1109 |
bool skip_fillInStackTrace_check = false;
|
|
1110 |
bool skip_throwableInit_check = false;
|
|
1111 |
|
|
1112 |
for (frame fr = thread->last_frame(); max_depth != total_count;) {
|
|
1113 |
methodOop method = NULL;
|
|
1114 |
int bci = 0;
|
|
1115 |
|
|
1116 |
// Compiled java method case.
|
|
1117 |
if (decode_offset != 0) {
|
|
1118 |
DebugInfoReadStream stream(nm, decode_offset);
|
|
1119 |
decode_offset = stream.read_int();
|
|
1120 |
method = (methodOop)nm->oop_at(stream.read_int());
|
|
1121 |
bci = stream.read_bci();
|
|
1122 |
} else {
|
|
1123 |
if (fr.is_first_frame()) break;
|
|
1124 |
address pc = fr.pc();
|
|
1125 |
if (fr.is_interpreted_frame()) {
|
|
1126 |
intptr_t bcx = fr.interpreter_frame_bcx();
|
|
1127 |
method = fr.interpreter_frame_method();
|
|
1128 |
bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx);
|
|
1129 |
fr = fr.sender(&map);
|
|
1130 |
} else {
|
|
1131 |
CodeBlob* cb = fr.cb();
|
|
1132 |
// HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL
|
|
1133 |
// but non nmethod
|
|
1134 |
fr = fr.sender(&map);
|
|
1135 |
if (cb == NULL || !cb->is_nmethod()) {
|
|
1136 |
continue;
|
|
1137 |
}
|
|
1138 |
nm = (nmethod*)cb;
|
|
1139 |
if (nm->method()->is_native()) {
|
|
1140 |
method = nm->method();
|
|
1141 |
bci = 0;
|
|
1142 |
} else {
|
|
1143 |
PcDesc* pd = nm->pc_desc_at(pc);
|
|
1144 |
decode_offset = pd->scope_decode_offset();
|
|
1145 |
// if decode_offset is not equal to 0, it will execute the
|
|
1146 |
// "compiled java method case" at the beginning of the loop.
|
|
1147 |
continue;
|
|
1148 |
}
|
|
1149 |
}
|
|
1150 |
}
|
|
1151 |
#ifdef ASSERT
|
|
1152 |
assert(st_method() == method && st.bci() == bci,
|
|
1153 |
"Wrong stack trace");
|
|
1154 |
st.next();
|
|
1155 |
// vframeStream::method isn't GC-safe so store off a copy
|
|
1156 |
// of the methodOop in case we GC.
|
|
1157 |
if (!st.at_end()) {
|
|
1158 |
st_method = st.method();
|
|
1159 |
}
|
|
1160 |
#endif
|
|
1161 |
if (!skip_fillInStackTrace_check) {
|
|
1162 |
// check "fillInStackTrace" only once, so we negate the flag
|
|
1163 |
// after the first time check.
|
|
1164 |
skip_fillInStackTrace_check = true;
|
|
1165 |
if (method->name() == vmSymbols::fillInStackTrace_name()) {
|
|
1166 |
continue;
|
|
1167 |
}
|
|
1168 |
}
|
|
1169 |
// skip <init> methods of the exceptions klass. If there is <init> methods
|
|
1170 |
// that belongs to a superclass of the exception we are going to skipping
|
|
1171 |
// them in stack trace. This is simlar to classic VM.
|
|
1172 |
if (!skip_throwableInit_check) {
|
|
1173 |
if (method->name() == vmSymbols::object_initializer_name() &&
|
|
1174 |
throwable->is_a(method->method_holder())) {
|
|
1175 |
continue;
|
|
1176 |
} else {
|
|
1177 |
// if no "Throwable.init()" method found, we stop checking it next time.
|
|
1178 |
skip_throwableInit_check = true;
|
|
1179 |
}
|
|
1180 |
}
|
|
1181 |
bt.push(method, bci, CHECK);
|
|
1182 |
total_count++;
|
|
1183 |
}
|
|
1184 |
|
|
1185 |
// Put completed stack trace into throwable object
|
|
1186 |
set_backtrace(throwable(), bt.backtrace());
|
|
1187 |
}
|
|
1188 |
|
|
1189 |
void java_lang_Throwable::fill_in_stack_trace(Handle throwable) {
|
|
1190 |
// No-op if stack trace is disabled
|
|
1191 |
if (!StackTraceInThrowable) {
|
|
1192 |
return;
|
|
1193 |
}
|
|
1194 |
|
|
1195 |
// Disable stack traces for some preallocated out of memory errors
|
|
1196 |
if (!Universe::should_fill_in_stack_trace(throwable)) {
|
|
1197 |
return;
|
|
1198 |
}
|
|
1199 |
|
|
1200 |
PRESERVE_EXCEPTION_MARK;
|
|
1201 |
|
|
1202 |
JavaThread* thread = JavaThread::active();
|
|
1203 |
fill_in_stack_trace(throwable, thread);
|
|
1204 |
// ignore exceptions thrown during stack trace filling
|
|
1205 |
CLEAR_PENDING_EXCEPTION;
|
|
1206 |
}
|
|
1207 |
|
|
1208 |
void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) {
|
|
1209 |
// Allocate stack trace - backtrace is created but not filled in
|
|
1210 |
|
|
1211 |
// No-op if stack trace is disabled
|
|
1212 |
if (!StackTraceInThrowable) return;
|
|
1213 |
|
|
1214 |
objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK);
|
|
1215 |
objArrayHandle backtrace (THREAD, h_oop);
|
|
1216 |
objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK);
|
|
1217 |
objArrayHandle methods (THREAD, m_oop);
|
|
1218 |
typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK);
|
|
1219 |
typeArrayHandle bcis(THREAD, b);
|
|
1220 |
|
|
1221 |
// backtrace has space for one chunk (next is NULL)
|
|
1222 |
backtrace->obj_at_put(trace_methods_offset, methods());
|
|
1223 |
backtrace->obj_at_put(trace_bcis_offset, bcis());
|
|
1224 |
set_backtrace(throwable(), backtrace());
|
|
1225 |
}
|
|
1226 |
|
|
1227 |
|
|
1228 |
void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) {
|
|
1229 |
// Fill in stack trace into preallocated backtrace (no GC)
|
|
1230 |
|
|
1231 |
// No-op if stack trace is disabled
|
|
1232 |
if (!StackTraceInThrowable) return;
|
|
1233 |
|
|
1234 |
assert(throwable->is_a(SystemDictionary::throwable_klass()), "sanity check");
|
|
1235 |
|
|
1236 |
oop backtrace = java_lang_Throwable::backtrace(throwable());
|
|
1237 |
assert(backtrace != NULL, "backtrace not preallocated");
|
|
1238 |
|
|
1239 |
oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset);
|
|
1240 |
objArrayOop methods = objArrayOop(m);
|
|
1241 |
assert(methods != NULL && methods->length() > 0, "method array not preallocated");
|
|
1242 |
|
|
1243 |
oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset);
|
|
1244 |
typeArrayOop bcis = typeArrayOop(b);
|
|
1245 |
assert(bcis != NULL, "bci array not preallocated");
|
|
1246 |
|
|
1247 |
assert(methods->length() == bcis->length(), "method and bci arrays should match");
|
|
1248 |
|
|
1249 |
JavaThread* thread = JavaThread::current();
|
|
1250 |
ResourceMark rm(thread);
|
|
1251 |
vframeStream st(thread);
|
|
1252 |
|
|
1253 |
// Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init
|
|
1254 |
// methods as preallocated errors aren't created by "java" code.
|
|
1255 |
|
|
1256 |
// fill in as much stack trace as possible
|
|
1257 |
int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth);
|
|
1258 |
int chunk_count = 0;
|
|
1259 |
|
|
1260 |
for (;!st.at_end(); st.next()) {
|
|
1261 |
// add element
|
|
1262 |
bcis->ushort_at_put(chunk_count, st.bci());
|
|
1263 |
methods->obj_at_put(chunk_count, st.method());
|
|
1264 |
|
|
1265 |
chunk_count++;
|
|
1266 |
|
|
1267 |
// Bail-out for deep stacks
|
|
1268 |
if (chunk_count >= max_chunks) break;
|
|
1269 |
}
|
|
1270 |
}
|
|
1271 |
|
|
1272 |
|
|
1273 |
int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) {
|
|
1274 |
if (throwable == NULL) {
|
|
1275 |
THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
1276 |
}
|
|
1277 |
objArrayOop chunk = objArrayOop(backtrace(throwable));
|
|
1278 |
int depth = 0;
|
|
1279 |
if (chunk != NULL) {
|
|
1280 |
// Iterate over chunks and count full ones
|
|
1281 |
while (true) {
|
|
1282 |
objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset));
|
|
1283 |
if (next == NULL) break;
|
|
1284 |
depth += trace_chunk_size;
|
|
1285 |
chunk = next;
|
|
1286 |
}
|
|
1287 |
assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check");
|
|
1288 |
// Count element in remaining partial chunk
|
|
1289 |
objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset));
|
|
1290 |
typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
|
|
1291 |
assert(methods != NULL && bcis != NULL, "sanity check");
|
|
1292 |
for (int i = 0; i < methods->length(); i++) {
|
|
1293 |
if (methods->obj_at(i) == NULL) break;
|
|
1294 |
depth++;
|
|
1295 |
}
|
|
1296 |
}
|
|
1297 |
return depth;
|
|
1298 |
}
|
|
1299 |
|
|
1300 |
|
|
1301 |
oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) {
|
|
1302 |
if (throwable == NULL) {
|
|
1303 |
THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
1304 |
}
|
|
1305 |
if (index < 0) {
|
|
1306 |
THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
1307 |
}
|
|
1308 |
// Compute how many chunks to skip and index into actual chunk
|
|
1309 |
objArrayOop chunk = objArrayOop(backtrace(throwable));
|
|
1310 |
int skip_chunks = index / trace_chunk_size;
|
|
1311 |
int chunk_index = index % trace_chunk_size;
|
|
1312 |
while (chunk != NULL && skip_chunks > 0) {
|
|
1313 |
chunk = objArrayOop(chunk->obj_at(trace_next_offset));
|
|
1314 |
skip_chunks--;
|
|
1315 |
}
|
|
1316 |
if (chunk == NULL) {
|
|
1317 |
THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
1318 |
}
|
|
1319 |
// Get method,bci from chunk
|
|
1320 |
objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset));
|
|
1321 |
typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
|
|
1322 |
assert(methods != NULL && bcis != NULL, "sanity check");
|
|
1323 |
methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index)));
|
|
1324 |
int bci = bcis->ushort_at(chunk_index);
|
|
1325 |
// Chunk can be partial full
|
|
1326 |
if (method.is_null()) {
|
|
1327 |
THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
1328 |
}
|
|
1329 |
|
|
1330 |
oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0);
|
|
1331 |
return element;
|
|
1332 |
}
|
|
1333 |
|
|
1334 |
oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) {
|
|
1335 |
// SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs
|
|
1336 |
assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
|
|
1337 |
|
|
1338 |
// Allocate java.lang.StackTraceElement instance
|
|
1339 |
klassOop k = SystemDictionary::stackTraceElement_klass();
|
|
1340 |
instanceKlassHandle ik (THREAD, k);
|
|
1341 |
if (ik->should_be_initialized()) {
|
|
1342 |
ik->initialize(CHECK_0);
|
|
1343 |
}
|
|
1344 |
|
|
1345 |
Handle element = ik->allocate_instance_handle(CHECK_0);
|
|
1346 |
// Fill in class name
|
|
1347 |
ResourceMark rm(THREAD);
|
|
1348 |
const char* str = instanceKlass::cast(method->method_holder())->external_name();
|
|
1349 |
oop classname = StringTable::intern((char*) str, CHECK_0);
|
|
1350 |
java_lang_StackTraceElement::set_declaringClass(element(), classname);
|
|
1351 |
// Fill in method name
|
|
1352 |
oop methodname = StringTable::intern(method->name(), CHECK_0);
|
|
1353 |
java_lang_StackTraceElement::set_methodName(element(), methodname);
|
|
1354 |
// Fill in source file name
|
|
1355 |
symbolOop source = instanceKlass::cast(method->method_holder())->source_file_name();
|
|
1356 |
oop filename = StringTable::intern(source, CHECK_0);
|
|
1357 |
java_lang_StackTraceElement::set_fileName(element(), filename);
|
|
1358 |
// File in source line number
|
|
1359 |
int line_number;
|
|
1360 |
if (method->is_native()) {
|
|
1361 |
// Negative value different from -1 below, enabling Java code in
|
|
1362 |
// class java.lang.StackTraceElement to distinguish "native" from
|
|
1363 |
// "no LineNumberTable".
|
|
1364 |
line_number = -2;
|
|
1365 |
} else {
|
|
1366 |
// Returns -1 if no LineNumberTable, and otherwise actual line number
|
|
1367 |
line_number = method->line_number_from_bci(bci);
|
|
1368 |
}
|
|
1369 |
java_lang_StackTraceElement::set_lineNumber(element(), line_number);
|
|
1370 |
|
|
1371 |
return element();
|
|
1372 |
}
|
|
1373 |
|
|
1374 |
|
|
1375 |
void java_lang_reflect_AccessibleObject::compute_offsets() {
|
|
1376 |
klassOop k = SystemDictionary::reflect_accessible_object_klass();
|
|
1377 |
COMPUTE_OFFSET("java.lang.reflect.AccessibleObject", override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature());
|
|
1378 |
}
|
|
1379 |
|
|
1380 |
jboolean java_lang_reflect_AccessibleObject::override(oop reflect) {
|
|
1381 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1382 |
return (jboolean) reflect->bool_field(override_offset);
|
|
1383 |
}
|
|
1384 |
|
|
1385 |
void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) {
|
|
1386 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1387 |
reflect->bool_field_put(override_offset, (int) value);
|
|
1388 |
}
|
|
1389 |
|
|
1390 |
void java_lang_reflect_Method::compute_offsets() {
|
|
1391 |
klassOop k = SystemDictionary::reflect_method_klass();
|
|
1392 |
COMPUTE_OFFSET("java.lang.reflect.Method", clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
1393 |
COMPUTE_OFFSET("java.lang.reflect.Method", name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
1394 |
COMPUTE_OFFSET("java.lang.reflect.Method", returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature());
|
|
1395 |
COMPUTE_OFFSET("java.lang.reflect.Method", parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
|
|
1396 |
COMPUTE_OFFSET("java.lang.reflect.Method", exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
|
|
1397 |
COMPUTE_OFFSET("java.lang.reflect.Method", slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
1398 |
COMPUTE_OFFSET("java.lang.reflect.Method", modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
1399 |
// The generic signature and annotations fields are only present in 1.5
|
|
1400 |
signature_offset = -1;
|
|
1401 |
annotations_offset = -1;
|
|
1402 |
parameter_annotations_offset = -1;
|
|
1403 |
annotation_default_offset = -1;
|
|
1404 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
1405 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
1406 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
|
|
1407 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature());
|
|
1408 |
}
|
|
1409 |
|
|
1410 |
Handle java_lang_reflect_Method::create(TRAPS) {
|
|
1411 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1412 |
klassOop klass = SystemDictionary::reflect_method_klass();
|
|
1413 |
// This class is eagerly initialized during VM initialization, since we keep a refence
|
|
1414 |
// to one of the methods
|
|
1415 |
assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized");
|
|
1416 |
return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH);
|
|
1417 |
}
|
|
1418 |
|
|
1419 |
oop java_lang_reflect_Method::clazz(oop reflect) {
|
|
1420 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1421 |
return reflect->obj_field(clazz_offset);
|
|
1422 |
}
|
|
1423 |
|
|
1424 |
void java_lang_reflect_Method::set_clazz(oop reflect, oop value) {
|
|
1425 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1426 |
reflect->obj_field_put(clazz_offset, value);
|
|
1427 |
}
|
|
1428 |
|
|
1429 |
int java_lang_reflect_Method::slot(oop reflect) {
|
|
1430 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1431 |
return reflect->int_field(slot_offset);
|
|
1432 |
}
|
|
1433 |
|
|
1434 |
void java_lang_reflect_Method::set_slot(oop reflect, int value) {
|
|
1435 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1436 |
reflect->int_field_put(slot_offset, value);
|
|
1437 |
}
|
|
1438 |
|
|
1439 |
oop java_lang_reflect_Method::name(oop method) {
|
|
1440 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1441 |
return method->obj_field(name_offset);
|
|
1442 |
}
|
|
1443 |
|
|
1444 |
void java_lang_reflect_Method::set_name(oop method, oop value) {
|
|
1445 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1446 |
method->obj_field_put(name_offset, value);
|
|
1447 |
}
|
|
1448 |
|
|
1449 |
oop java_lang_reflect_Method::return_type(oop method) {
|
|
1450 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1451 |
return method->obj_field(returnType_offset);
|
|
1452 |
}
|
|
1453 |
|
|
1454 |
void java_lang_reflect_Method::set_return_type(oop method, oop value) {
|
|
1455 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1456 |
method->obj_field_put(returnType_offset, value);
|
|
1457 |
}
|
|
1458 |
|
|
1459 |
oop java_lang_reflect_Method::parameter_types(oop method) {
|
|
1460 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1461 |
return method->obj_field(parameterTypes_offset);
|
|
1462 |
}
|
|
1463 |
|
|
1464 |
void java_lang_reflect_Method::set_parameter_types(oop method, oop value) {
|
|
1465 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1466 |
method->obj_field_put(parameterTypes_offset, value);
|
|
1467 |
}
|
|
1468 |
|
|
1469 |
oop java_lang_reflect_Method::exception_types(oop method) {
|
|
1470 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1471 |
return method->obj_field(exceptionTypes_offset);
|
|
1472 |
}
|
|
1473 |
|
|
1474 |
void java_lang_reflect_Method::set_exception_types(oop method, oop value) {
|
|
1475 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1476 |
method->obj_field_put(exceptionTypes_offset, value);
|
|
1477 |
}
|
|
1478 |
|
|
1479 |
int java_lang_reflect_Method::modifiers(oop method) {
|
|
1480 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1481 |
return method->int_field(modifiers_offset);
|
|
1482 |
}
|
|
1483 |
|
|
1484 |
void java_lang_reflect_Method::set_modifiers(oop method, int value) {
|
|
1485 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1486 |
method->int_field_put(modifiers_offset, value);
|
|
1487 |
}
|
|
1488 |
|
|
1489 |
bool java_lang_reflect_Method::has_signature_field() {
|
|
1490 |
return (signature_offset >= 0);
|
|
1491 |
}
|
|
1492 |
|
|
1493 |
oop java_lang_reflect_Method::signature(oop method) {
|
|
1494 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1495 |
assert(has_signature_field(), "signature field must be present");
|
|
1496 |
return method->obj_field(signature_offset);
|
|
1497 |
}
|
|
1498 |
|
|
1499 |
void java_lang_reflect_Method::set_signature(oop method, oop value) {
|
|
1500 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1501 |
assert(has_signature_field(), "signature field must be present");
|
|
1502 |
method->obj_field_put(signature_offset, value);
|
|
1503 |
}
|
|
1504 |
|
|
1505 |
bool java_lang_reflect_Method::has_annotations_field() {
|
|
1506 |
return (annotations_offset >= 0);
|
|
1507 |
}
|
|
1508 |
|
|
1509 |
oop java_lang_reflect_Method::annotations(oop method) {
|
|
1510 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1511 |
assert(has_annotations_field(), "annotations field must be present");
|
|
1512 |
return method->obj_field(annotations_offset);
|
|
1513 |
}
|
|
1514 |
|
|
1515 |
void java_lang_reflect_Method::set_annotations(oop method, oop value) {
|
|
1516 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1517 |
assert(has_annotations_field(), "annotations field must be present");
|
|
1518 |
method->obj_field_put(annotations_offset, value);
|
|
1519 |
}
|
|
1520 |
|
|
1521 |
bool java_lang_reflect_Method::has_parameter_annotations_field() {
|
|
1522 |
return (parameter_annotations_offset >= 0);
|
|
1523 |
}
|
|
1524 |
|
|
1525 |
oop java_lang_reflect_Method::parameter_annotations(oop method) {
|
|
1526 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1527 |
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
1528 |
return method->obj_field(parameter_annotations_offset);
|
|
1529 |
}
|
|
1530 |
|
|
1531 |
void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) {
|
|
1532 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1533 |
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
1534 |
method->obj_field_put(parameter_annotations_offset, value);
|
|
1535 |
}
|
|
1536 |
|
|
1537 |
bool java_lang_reflect_Method::has_annotation_default_field() {
|
|
1538 |
return (annotation_default_offset >= 0);
|
|
1539 |
}
|
|
1540 |
|
|
1541 |
oop java_lang_reflect_Method::annotation_default(oop method) {
|
|
1542 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1543 |
assert(has_annotation_default_field(), "annotation default field must be present");
|
|
1544 |
return method->obj_field(annotation_default_offset);
|
|
1545 |
}
|
|
1546 |
|
|
1547 |
void java_lang_reflect_Method::set_annotation_default(oop method, oop value) {
|
|
1548 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1549 |
assert(has_annotation_default_field(), "annotation default field must be present");
|
|
1550 |
method->obj_field_put(annotation_default_offset, value);
|
|
1551 |
}
|
|
1552 |
|
|
1553 |
void java_lang_reflect_Constructor::compute_offsets() {
|
|
1554 |
klassOop k = SystemDictionary::reflect_constructor_klass();
|
|
1555 |
COMPUTE_OFFSET("java.lang.reflect.Constructor", clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
1556 |
COMPUTE_OFFSET("java.lang.reflect.Constructor", parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
|
|
1557 |
COMPUTE_OFFSET("java.lang.reflect.Constructor", exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
|
|
1558 |
COMPUTE_OFFSET("java.lang.reflect.Constructor", slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
1559 |
COMPUTE_OFFSET("java.lang.reflect.Constructor", modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
1560 |
// The generic signature and annotations fields are only present in 1.5
|
|
1561 |
signature_offset = -1;
|
|
1562 |
annotations_offset = -1;
|
|
1563 |
parameter_annotations_offset = -1;
|
|
1564 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Constructor", signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
1565 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Constructor", annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
1566 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Constructor", parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
|
|
1567 |
}
|
|
1568 |
|
|
1569 |
Handle java_lang_reflect_Constructor::create(TRAPS) {
|
|
1570 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1571 |
symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor();
|
|
1572 |
klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
|
|
1573 |
instanceKlassHandle klass (THREAD, k);
|
|
1574 |
// Ensure it is initialized
|
|
1575 |
klass->initialize(CHECK_NH);
|
|
1576 |
return klass->allocate_instance_handle(CHECK_NH);
|
|
1577 |
}
|
|
1578 |
|
|
1579 |
oop java_lang_reflect_Constructor::clazz(oop reflect) {
|
|
1580 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1581 |
return reflect->obj_field(clazz_offset);
|
|
1582 |
}
|
|
1583 |
|
|
1584 |
void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) {
|
|
1585 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1586 |
reflect->obj_field_put(clazz_offset, value);
|
|
1587 |
}
|
|
1588 |
|
|
1589 |
oop java_lang_reflect_Constructor::parameter_types(oop constructor) {
|
|
1590 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1591 |
return constructor->obj_field(parameterTypes_offset);
|
|
1592 |
}
|
|
1593 |
|
|
1594 |
void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) {
|
|
1595 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1596 |
constructor->obj_field_put(parameterTypes_offset, value);
|
|
1597 |
}
|
|
1598 |
|
|
1599 |
oop java_lang_reflect_Constructor::exception_types(oop constructor) {
|
|
1600 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1601 |
return constructor->obj_field(exceptionTypes_offset);
|
|
1602 |
}
|
|
1603 |
|
|
1604 |
void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) {
|
|
1605 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1606 |
constructor->obj_field_put(exceptionTypes_offset, value);
|
|
1607 |
}
|
|
1608 |
|
|
1609 |
int java_lang_reflect_Constructor::slot(oop reflect) {
|
|
1610 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1611 |
return reflect->int_field(slot_offset);
|
|
1612 |
}
|
|
1613 |
|
|
1614 |
void java_lang_reflect_Constructor::set_slot(oop reflect, int value) {
|
|
1615 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1616 |
reflect->int_field_put(slot_offset, value);
|
|
1617 |
}
|
|
1618 |
|
|
1619 |
int java_lang_reflect_Constructor::modifiers(oop constructor) {
|
|
1620 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1621 |
return constructor->int_field(modifiers_offset);
|
|
1622 |
}
|
|
1623 |
|
|
1624 |
void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) {
|
|
1625 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1626 |
constructor->int_field_put(modifiers_offset, value);
|
|
1627 |
}
|
|
1628 |
|
|
1629 |
bool java_lang_reflect_Constructor::has_signature_field() {
|
|
1630 |
return (signature_offset >= 0);
|
|
1631 |
}
|
|
1632 |
|
|
1633 |
oop java_lang_reflect_Constructor::signature(oop constructor) {
|
|
1634 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1635 |
assert(has_signature_field(), "signature field must be present");
|
|
1636 |
return constructor->obj_field(signature_offset);
|
|
1637 |
}
|
|
1638 |
|
|
1639 |
void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) {
|
|
1640 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1641 |
assert(has_signature_field(), "signature field must be present");
|
|
1642 |
constructor->obj_field_put(signature_offset, value);
|
|
1643 |
}
|
|
1644 |
|
|
1645 |
bool java_lang_reflect_Constructor::has_annotations_field() {
|
|
1646 |
return (annotations_offset >= 0);
|
|
1647 |
}
|
|
1648 |
|
|
1649 |
oop java_lang_reflect_Constructor::annotations(oop constructor) {
|
|
1650 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1651 |
assert(has_annotations_field(), "annotations field must be present");
|
|
1652 |
return constructor->obj_field(annotations_offset);
|
|
1653 |
}
|
|
1654 |
|
|
1655 |
void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) {
|
|
1656 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1657 |
assert(has_annotations_field(), "annotations field must be present");
|
|
1658 |
constructor->obj_field_put(annotations_offset, value);
|
|
1659 |
}
|
|
1660 |
|
|
1661 |
bool java_lang_reflect_Constructor::has_parameter_annotations_field() {
|
|
1662 |
return (parameter_annotations_offset >= 0);
|
|
1663 |
}
|
|
1664 |
|
|
1665 |
oop java_lang_reflect_Constructor::parameter_annotations(oop method) {
|
|
1666 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1667 |
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
1668 |
return method->obj_field(parameter_annotations_offset);
|
|
1669 |
}
|
|
1670 |
|
|
1671 |
void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) {
|
|
1672 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1673 |
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
1674 |
method->obj_field_put(parameter_annotations_offset, value);
|
|
1675 |
}
|
|
1676 |
|
|
1677 |
void java_lang_reflect_Field::compute_offsets() {
|
|
1678 |
klassOop k = SystemDictionary::reflect_field_klass();
|
|
1679 |
COMPUTE_OFFSET("java.lang.reflect.Field", clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
1680 |
COMPUTE_OFFSET("java.lang.reflect.Field", name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
1681 |
COMPUTE_OFFSET("java.lang.reflect.Field", type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature());
|
|
1682 |
COMPUTE_OFFSET("java.lang.reflect.Field", slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
1683 |
COMPUTE_OFFSET("java.lang.reflect.Field", modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
1684 |
// The generic signature and annotations fields are only present in 1.5
|
|
1685 |
signature_offset = -1;
|
|
1686 |
annotations_offset = -1;
|
|
1687 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Field", signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
1688 |
COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Field", annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
1689 |
}
|
|
1690 |
|
|
1691 |
Handle java_lang_reflect_Field::create(TRAPS) {
|
|
1692 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1693 |
symbolHandle name = vmSymbolHandles::java_lang_reflect_Field();
|
|
1694 |
klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
|
|
1695 |
instanceKlassHandle klass (THREAD, k);
|
|
1696 |
// Ensure it is initialized
|
|
1697 |
klass->initialize(CHECK_NH);
|
|
1698 |
return klass->allocate_instance_handle(CHECK_NH);
|
|
1699 |
}
|
|
1700 |
|
|
1701 |
oop java_lang_reflect_Field::clazz(oop reflect) {
|
|
1702 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1703 |
return reflect->obj_field(clazz_offset);
|
|
1704 |
}
|
|
1705 |
|
|
1706 |
void java_lang_reflect_Field::set_clazz(oop reflect, oop value) {
|
|
1707 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1708 |
reflect->obj_field_put(clazz_offset, value);
|
|
1709 |
}
|
|
1710 |
|
|
1711 |
oop java_lang_reflect_Field::name(oop field) {
|
|
1712 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1713 |
return field->obj_field(name_offset);
|
|
1714 |
}
|
|
1715 |
|
|
1716 |
void java_lang_reflect_Field::set_name(oop field, oop value) {
|
|
1717 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1718 |
field->obj_field_put(name_offset, value);
|
|
1719 |
}
|
|
1720 |
|
|
1721 |
oop java_lang_reflect_Field::type(oop field) {
|
|
1722 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1723 |
return field->obj_field(type_offset);
|
|
1724 |
}
|
|
1725 |
|
|
1726 |
void java_lang_reflect_Field::set_type(oop field, oop value) {
|
|
1727 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1728 |
field->obj_field_put(type_offset, value);
|
|
1729 |
}
|
|
1730 |
|
|
1731 |
int java_lang_reflect_Field::slot(oop reflect) {
|
|
1732 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1733 |
return reflect->int_field(slot_offset);
|
|
1734 |
}
|
|
1735 |
|
|
1736 |
void java_lang_reflect_Field::set_slot(oop reflect, int value) {
|
|
1737 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1738 |
reflect->int_field_put(slot_offset, value);
|
|
1739 |
}
|
|
1740 |
|
|
1741 |
int java_lang_reflect_Field::modifiers(oop field) {
|
|
1742 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1743 |
return field->int_field(modifiers_offset);
|
|
1744 |
}
|
|
1745 |
|
|
1746 |
void java_lang_reflect_Field::set_modifiers(oop field, int value) {
|
|
1747 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1748 |
field->int_field_put(modifiers_offset, value);
|
|
1749 |
}
|
|
1750 |
|
|
1751 |
bool java_lang_reflect_Field::has_signature_field() {
|
|
1752 |
return (signature_offset >= 0);
|
|
1753 |
}
|
|
1754 |
|
|
1755 |
oop java_lang_reflect_Field::signature(oop field) {
|
|
1756 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1757 |
assert(has_signature_field(), "signature field must be present");
|
|
1758 |
return field->obj_field(signature_offset);
|
|
1759 |
}
|
|
1760 |
|
|
1761 |
void java_lang_reflect_Field::set_signature(oop field, oop value) {
|
|
1762 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1763 |
assert(has_signature_field(), "signature field must be present");
|
|
1764 |
field->obj_field_put(signature_offset, value);
|
|
1765 |
}
|
|
1766 |
|
|
1767 |
bool java_lang_reflect_Field::has_annotations_field() {
|
|
1768 |
return (annotations_offset >= 0);
|
|
1769 |
}
|
|
1770 |
|
|
1771 |
oop java_lang_reflect_Field::annotations(oop field) {
|
|
1772 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1773 |
assert(has_annotations_field(), "annotations field must be present");
|
|
1774 |
return field->obj_field(annotations_offset);
|
|
1775 |
}
|
|
1776 |
|
|
1777 |
void java_lang_reflect_Field::set_annotations(oop field, oop value) {
|
|
1778 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1779 |
assert(has_annotations_field(), "annotations field must be present");
|
|
1780 |
field->obj_field_put(annotations_offset, value);
|
|
1781 |
}
|
|
1782 |
|
|
1783 |
|
|
1784 |
void sun_reflect_ConstantPool::compute_offsets() {
|
|
1785 |
klassOop k = SystemDictionary::reflect_constant_pool_klass();
|
|
1786 |
// This null test can be removed post beta
|
|
1787 |
if (k != NULL) {
|
|
1788 |
COMPUTE_OFFSET("sun.reflect.ConstantPool", _cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature());
|
|
1789 |
}
|
|
1790 |
}
|
|
1791 |
|
|
1792 |
|
|
1793 |
Handle sun_reflect_ConstantPool::create(TRAPS) {
|
|
1794 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1795 |
klassOop k = SystemDictionary::reflect_constant_pool_klass();
|
|
1796 |
instanceKlassHandle klass (THREAD, k);
|
|
1797 |
// Ensure it is initialized
|
|
1798 |
klass->initialize(CHECK_NH);
|
|
1799 |
return klass->allocate_instance_handle(CHECK_NH);
|
|
1800 |
}
|
|
1801 |
|
|
1802 |
|
|
1803 |
oop sun_reflect_ConstantPool::cp_oop(oop reflect) {
|
|
1804 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1805 |
return reflect->obj_field(_cp_oop_offset);
|
|
1806 |
}
|
|
1807 |
|
|
1808 |
|
|
1809 |
void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) {
|
|
1810 |
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
1811 |
reflect->obj_field_put(_cp_oop_offset, value);
|
|
1812 |
}
|
|
1813 |
|
|
1814 |
void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() {
|
|
1815 |
klassOop k = SystemDictionary::reflect_unsafe_static_field_accessor_impl_klass();
|
|
1816 |
// This null test can be removed post beta
|
|
1817 |
if (k != NULL) {
|
|
1818 |
COMPUTE_OFFSET("sun.reflect.UnsafeStaticFieldAccessorImpl", _base_offset, k,
|
|
1819 |
vmSymbols::base_name(), vmSymbols::object_signature());
|
|
1820 |
}
|
|
1821 |
}
|
|
1822 |
|
|
1823 |
oop java_lang_boxing_object::initialize_and_allocate(klassOop k, TRAPS) {
|
|
1824 |
instanceKlassHandle h (THREAD, k);
|
|
1825 |
if (!h->is_initialized()) h->initialize(CHECK_0);
|
|
1826 |
return h->allocate_instance(THREAD);
|
|
1827 |
}
|
|
1828 |
|
|
1829 |
|
|
1830 |
oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) {
|
|
1831 |
oop box;
|
|
1832 |
switch (type) {
|
|
1833 |
case T_BOOLEAN:
|
|
1834 |
box = initialize_and_allocate(SystemDictionary::boolean_klass(), CHECK_0);
|
|
1835 |
box->bool_field_put(value_offset, value->z);
|
|
1836 |
break;
|
|
1837 |
case T_CHAR:
|
|
1838 |
box = initialize_and_allocate(SystemDictionary::char_klass(), CHECK_0);
|
|
1839 |
box->char_field_put(value_offset, value->c);
|
|
1840 |
break;
|
|
1841 |
case T_FLOAT:
|
|
1842 |
box = initialize_and_allocate(SystemDictionary::float_klass(), CHECK_0);
|
|
1843 |
box->float_field_put(value_offset, value->f);
|
|
1844 |
break;
|
|
1845 |
case T_DOUBLE:
|
|
1846 |
box = initialize_and_allocate(SystemDictionary::double_klass(), CHECK_0);
|
|
1847 |
box->double_field_put(value_offset, value->d);
|
|
1848 |
break;
|
|
1849 |
case T_BYTE:
|
|
1850 |
box = initialize_and_allocate(SystemDictionary::byte_klass(), CHECK_0);
|
|
1851 |
box->byte_field_put(value_offset, value->b);
|
|
1852 |
break;
|
|
1853 |
case T_SHORT:
|
|
1854 |
box = initialize_and_allocate(SystemDictionary::short_klass(), CHECK_0);
|
|
1855 |
box->short_field_put(value_offset, value->s);
|
|
1856 |
break;
|
|
1857 |
case T_INT:
|
|
1858 |
box = initialize_and_allocate(SystemDictionary::int_klass(), CHECK_0);
|
|
1859 |
box->int_field_put(value_offset, value->i);
|
|
1860 |
break;
|
|
1861 |
case T_LONG:
|
|
1862 |
box = initialize_and_allocate(SystemDictionary::long_klass(), CHECK_0);
|
|
1863 |
box->long_field_put(value_offset, value->j);
|
|
1864 |
break;
|
|
1865 |
default:
|
|
1866 |
return NULL;
|
|
1867 |
}
|
|
1868 |
return box;
|
|
1869 |
}
|
|
1870 |
|
|
1871 |
|
|
1872 |
BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) {
|
|
1873 |
klassOop k = box->klass();
|
|
1874 |
if (k == SystemDictionary::boolean_klass()) {
|
|
1875 |
value->z = box->bool_field(value_offset);
|
|
1876 |
return T_BOOLEAN;
|
|
1877 |
}
|
|
1878 |
if (k == SystemDictionary::char_klass()) {
|
|
1879 |
value->c = box->char_field(value_offset);
|
|
1880 |
return T_CHAR;
|
|
1881 |
}
|
|
1882 |
if (k == SystemDictionary::float_klass()) {
|
|
1883 |
value->f = box->float_field(value_offset);
|
|
1884 |
return T_FLOAT;
|
|
1885 |
}
|
|
1886 |
if (k == SystemDictionary::double_klass()) {
|
|
1887 |
value->d = box->double_field(value_offset);
|
|
1888 |
return T_DOUBLE;
|
|
1889 |
}
|
|
1890 |
if (k == SystemDictionary::byte_klass()) {
|
|
1891 |
value->b = box->byte_field(value_offset);
|
|
1892 |
return T_BYTE;
|
|
1893 |
}
|
|
1894 |
if (k == SystemDictionary::short_klass()) {
|
|
1895 |
value->s = box->short_field(value_offset);
|
|
1896 |
return T_SHORT;
|
|
1897 |
}
|
|
1898 |
if (k == SystemDictionary::int_klass()) {
|
|
1899 |
value->i = box->int_field(value_offset);
|
|
1900 |
return T_INT;
|
|
1901 |
}
|
|
1902 |
if (k == SystemDictionary::long_klass()) {
|
|
1903 |
value->j = box->long_field(value_offset);
|
|
1904 |
return T_LONG;
|
|
1905 |
}
|
|
1906 |
return T_ILLEGAL;
|
|
1907 |
}
|
|
1908 |
|
|
1909 |
|
|
1910 |
BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) {
|
|
1911 |
klassOop k = box->klass();
|
|
1912 |
if (k == SystemDictionary::boolean_klass()) {
|
|
1913 |
box->bool_field_put(value_offset, value->z);
|
|
1914 |
return T_BOOLEAN;
|
|
1915 |
}
|
|
1916 |
if (k == SystemDictionary::char_klass()) {
|
|
1917 |
box->char_field_put(value_offset, value->c);
|
|
1918 |
return T_CHAR;
|
|
1919 |
}
|
|
1920 |
if (k == SystemDictionary::float_klass()) {
|
|
1921 |
box->float_field_put(value_offset, value->f);
|
|
1922 |
return T_FLOAT;
|
|
1923 |
}
|
|
1924 |
if (k == SystemDictionary::double_klass()) {
|
|
1925 |
box->double_field_put(value_offset, value->d);
|
|
1926 |
return T_DOUBLE;
|
|
1927 |
}
|
|
1928 |
if (k == SystemDictionary::byte_klass()) {
|
|
1929 |
box->byte_field_put(value_offset, value->b);
|
|
1930 |
return T_BYTE;
|
|
1931 |
}
|
|
1932 |
if (k == SystemDictionary::short_klass()) {
|
|
1933 |
box->short_field_put(value_offset, value->s);
|
|
1934 |
return T_SHORT;
|
|
1935 |
}
|
|
1936 |
if (k == SystemDictionary::int_klass()) {
|
|
1937 |
box->int_field_put(value_offset, value->i);
|
|
1938 |
return T_INT;
|
|
1939 |
}
|
|
1940 |
if (k == SystemDictionary::long_klass()) {
|
|
1941 |
box->long_field_put(value_offset, value->j);
|
|
1942 |
return T_LONG;
|
|
1943 |
}
|
|
1944 |
return T_ILLEGAL;
|
|
1945 |
}
|
|
1946 |
|
|
1947 |
|
|
1948 |
// Support for java_lang_ref_Reference
|
|
1949 |
|
|
1950 |
void java_lang_ref_Reference::set_referent(oop ref, oop value) {
|
|
1951 |
ref->obj_field_put(referent_offset, value);
|
|
1952 |
}
|
|
1953 |
|
|
1954 |
oop* java_lang_ref_Reference::referent_addr(oop ref) {
|
|
1955 |
return ref->obj_field_addr(referent_offset);
|
|
1956 |
}
|
|
1957 |
|
|
1958 |
void java_lang_ref_Reference::set_next(oop ref, oop value) {
|
|
1959 |
ref->obj_field_put(next_offset, value);
|
|
1960 |
}
|
|
1961 |
|
|
1962 |
oop* java_lang_ref_Reference::next_addr(oop ref) {
|
|
1963 |
return ref->obj_field_addr(next_offset);
|
|
1964 |
}
|
|
1965 |
|
|
1966 |
void java_lang_ref_Reference::set_discovered(oop ref, oop value) {
|
|
1967 |
ref->obj_field_put(discovered_offset, value);
|
|
1968 |
}
|
|
1969 |
|
|
1970 |
oop* java_lang_ref_Reference::discovered_addr(oop ref) {
|
|
1971 |
return ref->obj_field_addr(discovered_offset);
|
|
1972 |
}
|
|
1973 |
|
|
1974 |
oop* java_lang_ref_Reference::pending_list_lock_addr() {
|
|
1975 |
instanceKlass* ik = instanceKlass::cast(SystemDictionary::reference_klass());
|
|
1976 |
return (oop*)(((char *)ik->start_of_static_fields()) + static_lock_offset);
|
|
1977 |
}
|
|
1978 |
|
|
1979 |
oop* java_lang_ref_Reference::pending_list_addr() {
|
|
1980 |
instanceKlass* ik = instanceKlass::cast(SystemDictionary::reference_klass());
|
|
1981 |
return (oop *)(((char *)ik->start_of_static_fields()) + static_pending_offset);
|
|
1982 |
}
|
|
1983 |
|
|
1984 |
|
|
1985 |
// Support for java_lang_ref_SoftReference
|
|
1986 |
|
|
1987 |
jlong java_lang_ref_SoftReference::timestamp(oop ref) {
|
|
1988 |
return ref->long_field(timestamp_offset);
|
|
1989 |
}
|
|
1990 |
|
|
1991 |
jlong java_lang_ref_SoftReference::clock() {
|
|
1992 |
instanceKlass* ik = instanceKlass::cast(SystemDictionary::soft_reference_klass());
|
|
1993 |
int offset = ik->offset_of_static_fields() + static_clock_offset;
|
|
1994 |
|
|
1995 |
return SystemDictionary::soft_reference_klass()->long_field(offset);
|
|
1996 |
}
|
|
1997 |
|
|
1998 |
void java_lang_ref_SoftReference::set_clock(jlong value) {
|
|
1999 |
instanceKlass* ik = instanceKlass::cast(SystemDictionary::soft_reference_klass());
|
|
2000 |
int offset = ik->offset_of_static_fields() + static_clock_offset;
|
|
2001 |
|
|
2002 |
SystemDictionary::soft_reference_klass()->long_field_put(offset, value);
|
|
2003 |
}
|
|
2004 |
|
|
2005 |
|
|
2006 |
// Support for java_security_AccessControlContext
|
|
2007 |
|
|
2008 |
int java_security_AccessControlContext::_context_offset = 0;
|
|
2009 |
int java_security_AccessControlContext::_privilegedContext_offset = 0;
|
|
2010 |
int java_security_AccessControlContext::_isPrivileged_offset = 0;
|
|
2011 |
|
|
2012 |
|
|
2013 |
void java_security_AccessControlContext::compute_offsets() {
|
|
2014 |
assert(_isPrivileged_offset == 0, "offsets should be initialized only once");
|
|
2015 |
fieldDescriptor fd;
|
|
2016 |
instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass());
|
|
2017 |
|
|
2018 |
if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) {
|
|
2019 |
fatal("Invalid layout of java.security.AccessControlContext");
|
|
2020 |
}
|
|
2021 |
_context_offset = fd.offset();
|
|
2022 |
|
|
2023 |
if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) {
|
|
2024 |
fatal("Invalid layout of java.security.AccessControlContext");
|
|
2025 |
}
|
|
2026 |
_privilegedContext_offset = fd.offset();
|
|
2027 |
|
|
2028 |
if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) {
|
|
2029 |
fatal("Invalid layout of java.security.AccessControlContext");
|
|
2030 |
}
|
|
2031 |
_isPrivileged_offset = fd.offset();
|
|
2032 |
}
|
|
2033 |
|
|
2034 |
|
|
2035 |
oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) {
|
|
2036 |
assert(_isPrivileged_offset != 0, "offsets should have been initialized");
|
|
2037 |
// Ensure klass is initialized
|
|
2038 |
instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0);
|
|
2039 |
// Allocate result
|
|
2040 |
oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0);
|
|
2041 |
// Fill in values
|
|
2042 |
result->obj_field_put(_context_offset, context());
|
|
2043 |
result->obj_field_put(_privilegedContext_offset, privileged_context());
|
|
2044 |
result->bool_field_put(_isPrivileged_offset, isPrivileged);
|
|
2045 |
return result;
|
|
2046 |
}
|
|
2047 |
|
|
2048 |
|
|
2049 |
// Support for java_lang_ClassLoader
|
|
2050 |
|
|
2051 |
oop java_lang_ClassLoader::parent(oop loader) {
|
|
2052 |
assert(loader->is_oop(), "loader must be oop");
|
|
2053 |
return loader->obj_field(parent_offset);
|
|
2054 |
}
|
|
2055 |
|
|
2056 |
|
|
2057 |
bool java_lang_ClassLoader::is_trusted_loader(oop loader) {
|
|
2058 |
// Fix for 4474172; see evaluation for more details
|
|
2059 |
loader = non_reflection_class_loader(loader);
|
|
2060 |
|
|
2061 |
oop cl = SystemDictionary::java_system_loader();
|
|
2062 |
while(cl != NULL) {
|
|
2063 |
if (cl == loader) return true;
|
|
2064 |
cl = parent(cl);
|
|
2065 |
}
|
|
2066 |
return false;
|
|
2067 |
}
|
|
2068 |
|
|
2069 |
oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) {
|
|
2070 |
if (loader != NULL) {
|
|
2071 |
// See whether this is one of the class loaders associated with
|
|
2072 |
// the generated bytecodes for reflection, and if so, "magically"
|
|
2073 |
// delegate to its parent to prevent class loading from occurring
|
|
2074 |
// in places where applications using reflection didn't expect it.
|
|
2075 |
klassOop delegating_cl_class = SystemDictionary::reflect_delegating_classloader_klass();
|
|
2076 |
// This might be null in non-1.4 JDKs
|
|
2077 |
if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) {
|
|
2078 |
return parent(loader);
|
|
2079 |
}
|
|
2080 |
}
|
|
2081 |
return loader;
|
|
2082 |
}
|
|
2083 |
|
|
2084 |
|
|
2085 |
// Support for java_lang_System
|
|
2086 |
|
|
2087 |
void java_lang_System::compute_offsets() {
|
|
2088 |
assert(offset_of_static_fields == 0, "offsets should be initialized only once");
|
|
2089 |
|
|
2090 |
instanceKlass* ik = instanceKlass::cast(SystemDictionary::system_klass());
|
|
2091 |
offset_of_static_fields = ik->offset_of_static_fields();
|
|
2092 |
}
|
|
2093 |
|
|
2094 |
int java_lang_System::in_offset_in_bytes() {
|
|
2095 |
return (offset_of_static_fields + static_in_offset);
|
|
2096 |
}
|
|
2097 |
|
|
2098 |
|
|
2099 |
int java_lang_System::out_offset_in_bytes() {
|
|
2100 |
return (offset_of_static_fields + static_out_offset);
|
|
2101 |
}
|
|
2102 |
|
|
2103 |
|
|
2104 |
int java_lang_System::err_offset_in_bytes() {
|
|
2105 |
return (offset_of_static_fields + static_err_offset);
|
|
2106 |
}
|
|
2107 |
|
|
2108 |
|
|
2109 |
|
|
2110 |
int java_lang_String::value_offset;
|
|
2111 |
int java_lang_String::offset_offset;
|
|
2112 |
int java_lang_String::count_offset;
|
|
2113 |
int java_lang_String::hash_offset;
|
|
2114 |
int java_lang_Class::klass_offset;
|
|
2115 |
int java_lang_Class::array_klass_offset;
|
|
2116 |
int java_lang_Class::resolved_constructor_offset;
|
|
2117 |
int java_lang_Class::number_of_fake_oop_fields;
|
|
2118 |
int java_lang_Throwable::backtrace_offset;
|
|
2119 |
int java_lang_Throwable::detailMessage_offset;
|
|
2120 |
int java_lang_Throwable::cause_offset;
|
|
2121 |
int java_lang_Throwable::stackTrace_offset;
|
|
2122 |
int java_lang_reflect_AccessibleObject::override_offset;
|
|
2123 |
int java_lang_reflect_Method::clazz_offset;
|
|
2124 |
int java_lang_reflect_Method::name_offset;
|
|
2125 |
int java_lang_reflect_Method::returnType_offset;
|
|
2126 |
int java_lang_reflect_Method::parameterTypes_offset;
|
|
2127 |
int java_lang_reflect_Method::exceptionTypes_offset;
|
|
2128 |
int java_lang_reflect_Method::slot_offset;
|
|
2129 |
int java_lang_reflect_Method::modifiers_offset;
|
|
2130 |
int java_lang_reflect_Method::signature_offset;
|
|
2131 |
int java_lang_reflect_Method::annotations_offset;
|
|
2132 |
int java_lang_reflect_Method::parameter_annotations_offset;
|
|
2133 |
int java_lang_reflect_Method::annotation_default_offset;
|
|
2134 |
int java_lang_reflect_Constructor::clazz_offset;
|
|
2135 |
int java_lang_reflect_Constructor::parameterTypes_offset;
|
|
2136 |
int java_lang_reflect_Constructor::exceptionTypes_offset;
|
|
2137 |
int java_lang_reflect_Constructor::slot_offset;
|
|
2138 |
int java_lang_reflect_Constructor::modifiers_offset;
|
|
2139 |
int java_lang_reflect_Constructor::signature_offset;
|
|
2140 |
int java_lang_reflect_Constructor::annotations_offset;
|
|
2141 |
int java_lang_reflect_Constructor::parameter_annotations_offset;
|
|
2142 |
int java_lang_reflect_Field::clazz_offset;
|
|
2143 |
int java_lang_reflect_Field::name_offset;
|
|
2144 |
int java_lang_reflect_Field::type_offset;
|
|
2145 |
int java_lang_reflect_Field::slot_offset;
|
|
2146 |
int java_lang_reflect_Field::modifiers_offset;
|
|
2147 |
int java_lang_reflect_Field::signature_offset;
|
|
2148 |
int java_lang_reflect_Field::annotations_offset;
|
|
2149 |
int java_lang_boxing_object::value_offset;
|
|
2150 |
int java_lang_ref_Reference::referent_offset;
|
|
2151 |
int java_lang_ref_Reference::queue_offset;
|
|
2152 |
int java_lang_ref_Reference::next_offset;
|
|
2153 |
int java_lang_ref_Reference::discovered_offset;
|
|
2154 |
int java_lang_ref_Reference::static_lock_offset;
|
|
2155 |
int java_lang_ref_Reference::static_pending_offset;
|
|
2156 |
int java_lang_ref_Reference::number_of_fake_oop_fields;
|
|
2157 |
int java_lang_ref_SoftReference::timestamp_offset;
|
|
2158 |
int java_lang_ref_SoftReference::static_clock_offset;
|
|
2159 |
int java_lang_ClassLoader::parent_offset;
|
|
2160 |
int java_lang_System::offset_of_static_fields;
|
|
2161 |
int java_lang_System::static_in_offset;
|
|
2162 |
int java_lang_System::static_out_offset;
|
|
2163 |
int java_lang_System::static_err_offset;
|
|
2164 |
int java_lang_StackTraceElement::declaringClass_offset;
|
|
2165 |
int java_lang_StackTraceElement::methodName_offset;
|
|
2166 |
int java_lang_StackTraceElement::fileName_offset;
|
|
2167 |
int java_lang_StackTraceElement::lineNumber_offset;
|
|
2168 |
int java_lang_AssertionStatusDirectives::classes_offset;
|
|
2169 |
int java_lang_AssertionStatusDirectives::classEnabled_offset;
|
|
2170 |
int java_lang_AssertionStatusDirectives::packages_offset;
|
|
2171 |
int java_lang_AssertionStatusDirectives::packageEnabled_offset;
|
|
2172 |
int java_lang_AssertionStatusDirectives::deflt_offset;
|
|
2173 |
int java_nio_Buffer::_limit_offset;
|
|
2174 |
int sun_misc_AtomicLongCSImpl::_value_offset;
|
|
2175 |
int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0;
|
|
2176 |
int sun_reflect_ConstantPool::_cp_oop_offset;
|
|
2177 |
int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset;
|
|
2178 |
|
|
2179 |
|
|
2180 |
// Support for java_lang_StackTraceElement
|
|
2181 |
|
|
2182 |
void java_lang_StackTraceElement::set_fileName(oop element, oop value) {
|
|
2183 |
element->obj_field_put(fileName_offset, value);
|
|
2184 |
}
|
|
2185 |
|
|
2186 |
void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) {
|
|
2187 |
element->obj_field_put(declaringClass_offset, value);
|
|
2188 |
}
|
|
2189 |
|
|
2190 |
void java_lang_StackTraceElement::set_methodName(oop element, oop value) {
|
|
2191 |
element->obj_field_put(methodName_offset, value);
|
|
2192 |
}
|
|
2193 |
|
|
2194 |
void java_lang_StackTraceElement::set_lineNumber(oop element, int value) {
|
|
2195 |
element->int_field_put(lineNumber_offset, value);
|
|
2196 |
}
|
|
2197 |
|
|
2198 |
|
|
2199 |
// Support for java Assertions - java_lang_AssertionStatusDirectives.
|
|
2200 |
|
|
2201 |
void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) {
|
|
2202 |
o->obj_field_put(classes_offset, val);
|
|
2203 |
}
|
|
2204 |
|
|
2205 |
void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) {
|
|
2206 |
o->obj_field_put(classEnabled_offset, val);
|
|
2207 |
}
|
|
2208 |
|
|
2209 |
void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) {
|
|
2210 |
o->obj_field_put(packages_offset, val);
|
|
2211 |
}
|
|
2212 |
|
|
2213 |
void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) {
|
|
2214 |
o->obj_field_put(packageEnabled_offset, val);
|
|
2215 |
}
|
|
2216 |
|
|
2217 |
void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) {
|
|
2218 |
o->bool_field_put(deflt_offset, val);
|
|
2219 |
}
|
|
2220 |
|
|
2221 |
|
|
2222 |
// Support for intrinsification of java.nio.Buffer.checkIndex
|
|
2223 |
int java_nio_Buffer::limit_offset() {
|
|
2224 |
return _limit_offset;
|
|
2225 |
}
|
|
2226 |
|
|
2227 |
|
|
2228 |
void java_nio_Buffer::compute_offsets() {
|
|
2229 |
klassOop k = SystemDictionary::java_nio_Buffer_klass();
|
|
2230 |
COMPUTE_OFFSET("java.nio.Buffer", _limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature());
|
|
2231 |
}
|
|
2232 |
|
|
2233 |
// Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate
|
|
2234 |
int sun_misc_AtomicLongCSImpl::value_offset() {
|
|
2235 |
assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this");
|
|
2236 |
return _value_offset;
|
|
2237 |
}
|
|
2238 |
|
|
2239 |
|
|
2240 |
void sun_misc_AtomicLongCSImpl::compute_offsets() {
|
|
2241 |
klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass();
|
|
2242 |
// If this class is not present, its value field offset won't be referenced.
|
|
2243 |
if (k != NULL) {
|
|
2244 |
COMPUTE_OFFSET("sun.misc.AtomicLongCSImpl", _value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature());
|
|
2245 |
}
|
|
2246 |
}
|
|
2247 |
|
|
2248 |
void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) {
|
|
2249 |
if (_owner_offset != 0) return;
|
|
2250 |
|
|
2251 |
assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later");
|
|
2252 |
SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK);
|
|
2253 |
klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass();
|
|
2254 |
COMPUTE_OFFSET("java.util.concurrent.locks.AbstractOwnableSynchronizer", _owner_offset, k,
|
|
2255 |
vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature());
|
|
2256 |
}
|
|
2257 |
|
|
2258 |
oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) {
|
|
2259 |
assert(_owner_offset != 0, "Must be initialized");
|
|
2260 |
return obj->obj_field(_owner_offset);
|
|
2261 |
}
|
|
2262 |
|
|
2263 |
// Compute hard-coded offsets
|
|
2264 |
// Invoked before SystemDictionary::initialize, so pre-loaded classes
|
|
2265 |
// are not available to determine the offset_of_static_fields.
|
|
2266 |
void JavaClasses::compute_hard_coded_offsets() {
|
|
2267 |
const int x = wordSize;
|
|
2268 |
const int header = instanceOopDesc::header_size_in_bytes();
|
|
2269 |
|
|
2270 |
// Do the String Class
|
|
2271 |
java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header;
|
|
2272 |
java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header;
|
|
2273 |
java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint);
|
|
2274 |
java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint);
|
|
2275 |
|
|
2276 |
// Do the Class Class
|
|
2277 |
java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header;
|
|
2278 |
java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header;
|
|
2279 |
java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header;
|
|
2280 |
|
|
2281 |
// This is NOT an offset
|
|
2282 |
java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields;
|
|
2283 |
|
|
2284 |
// Throwable Class
|
|
2285 |
java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header;
|
|
2286 |
java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header;
|
|
2287 |
java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header;
|
|
2288 |
java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header;
|
|
2289 |
|
|
2290 |
// java_lang_boxing_object
|
|
2291 |
java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset * x + header;
|
|
2292 |
|
|
2293 |
// java_lang_ref_Reference:
|
|
2294 |
java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header;
|
|
2295 |
java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header;
|
|
2296 |
java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header;
|
|
2297 |
java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header;
|
|
2298 |
java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x;
|
|
2299 |
java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x;
|
|
2300 |
// Artificial fields for java_lang_ref_Reference
|
|
2301 |
// The first field is for the discovered field added in 1.4
|
|
2302 |
java_lang_ref_Reference::number_of_fake_oop_fields = 1;
|
|
2303 |
|
|
2304 |
// java_lang_ref_SoftReference Class
|
|
2305 |
java_lang_ref_SoftReference::timestamp_offset = java_lang_ref_SoftReference::hc_timestamp_offset * x + header;
|
|
2306 |
// Don't multiply static fields because they are always in wordSize units
|
|
2307 |
java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x;
|
|
2308 |
|
|
2309 |
// java_lang_ClassLoader
|
|
2310 |
java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header;
|
|
2311 |
|
|
2312 |
// java_lang_System
|
|
2313 |
java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x;
|
|
2314 |
java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x;
|
|
2315 |
java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x;
|
|
2316 |
|
|
2317 |
// java_lang_StackTraceElement
|
|
2318 |
java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header;
|
|
2319 |
java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header;
|
|
2320 |
java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header;
|
|
2321 |
java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header;
|
|
2322 |
java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header;
|
|
2323 |
java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header;
|
|
2324 |
java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header;
|
|
2325 |
java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header;
|
|
2326 |
java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header;
|
|
2327 |
|
|
2328 |
}
|
|
2329 |
|
|
2330 |
|
|
2331 |
// Compute non-hard-coded field offsets of all the classes in this file
|
|
2332 |
void JavaClasses::compute_offsets() {
|
|
2333 |
|
|
2334 |
java_lang_Class::compute_offsets();
|
|
2335 |
java_lang_System::compute_offsets();
|
|
2336 |
java_lang_Thread::compute_offsets();
|
|
2337 |
java_lang_ThreadGroup::compute_offsets();
|
|
2338 |
java_security_AccessControlContext::compute_offsets();
|
|
2339 |
// Initialize reflection classes. The layouts of these classes
|
|
2340 |
// changed with the new reflection implementation in JDK 1.4, and
|
|
2341 |
// since the Universe doesn't know what JDK version it is until this
|
|
2342 |
// point we defer computation of these offsets until now.
|
|
2343 |
java_lang_reflect_AccessibleObject::compute_offsets();
|
|
2344 |
java_lang_reflect_Method::compute_offsets();
|
|
2345 |
java_lang_reflect_Constructor::compute_offsets();
|
|
2346 |
java_lang_reflect_Field::compute_offsets();
|
|
2347 |
if (JDK_Version::is_gte_jdk14x_version()) {
|
|
2348 |
java_nio_Buffer::compute_offsets();
|
|
2349 |
}
|
|
2350 |
if (JDK_Version::is_gte_jdk15x_version()) {
|
|
2351 |
sun_reflect_ConstantPool::compute_offsets();
|
|
2352 |
sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets();
|
|
2353 |
}
|
|
2354 |
sun_misc_AtomicLongCSImpl::compute_offsets();
|
|
2355 |
}
|
|
2356 |
|
|
2357 |
#ifndef PRODUCT
|
|
2358 |
|
|
2359 |
// These functions exist to assert the validity of hard-coded field offsets to guard
|
|
2360 |
// against changes in the class files
|
|
2361 |
|
|
2362 |
bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
|
|
2363 |
EXCEPTION_MARK;
|
|
2364 |
fieldDescriptor fd;
|
|
2365 |
symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH);
|
|
2366 |
klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
2367 |
instanceKlassHandle h_klass (THREAD, k);
|
|
2368 |
//instanceKlassHandle h_klass(klass);
|
|
2369 |
symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH);
|
|
2370 |
symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH);
|
|
2371 |
if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) {
|
|
2372 |
tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name);
|
|
2373 |
return false;
|
|
2374 |
}
|
|
2375 |
if (fd.is_static()) {
|
|
2376 |
tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name);
|
|
2377 |
return false;
|
|
2378 |
}
|
|
2379 |
if (fd.offset() == hardcoded_offset ) {
|
|
2380 |
return true;
|
|
2381 |
} else {
|
|
2382 |
tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.",
|
|
2383 |
klass_name, field_name, hardcoded_offset, fd.offset());
|
|
2384 |
return false;
|
|
2385 |
}
|
|
2386 |
}
|
|
2387 |
|
|
2388 |
|
|
2389 |
bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
|
|
2390 |
EXCEPTION_MARK;
|
|
2391 |
fieldDescriptor fd;
|
|
2392 |
symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH);
|
|
2393 |
klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
2394 |
instanceKlassHandle h_klass (THREAD, k);
|
|
2395 |
symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH);
|
|
2396 |
symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH);
|
|
2397 |
if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) {
|
|
2398 |
tty->print_cr("Static field %s.%s not found", klass_name, field_name);
|
|
2399 |
return false;
|
|
2400 |
}
|
|
2401 |
if (!fd.is_static()) {
|
|
2402 |
tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name);
|
|
2403 |
return false;
|
|
2404 |
}
|
|
2405 |
if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) {
|
|
2406 |
return true;
|
|
2407 |
} else {
|
|
2408 |
tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - h_klass->offset_of_static_fields());
|
|
2409 |
return false;
|
|
2410 |
}
|
|
2411 |
}
|
|
2412 |
|
|
2413 |
|
|
2414 |
// Check the hard-coded field offsets of all the classes in this file
|
|
2415 |
|
|
2416 |
void JavaClasses::check_offsets() {
|
|
2417 |
bool valid = true;
|
|
2418 |
|
|
2419 |
#define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
2420 |
valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig)
|
|
2421 |
|
|
2422 |
#define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
2423 |
valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig)
|
|
2424 |
|
|
2425 |
// java.lang.String
|
|
2426 |
|
|
2427 |
CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C");
|
|
2428 |
CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
|
|
2429 |
CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
|
|
2430 |
CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
|
|
2431 |
|
|
2432 |
// java.lang.Class
|
|
2433 |
|
|
2434 |
// Fake fields
|
|
2435 |
// CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked
|
|
2436 |
// CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked
|
|
2437 |
// CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked
|
|
2438 |
|
|
2439 |
// java.lang.Throwable
|
|
2440 |
|
|
2441 |
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;");
|
|
2442 |
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;");
|
|
2443 |
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;");
|
|
2444 |
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;");
|
|
2445 |
|
|
2446 |
// Boxed primitive objects (java_lang_boxing_object)
|
|
2447 |
|
|
2448 |
CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z");
|
|
2449 |
CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C");
|
|
2450 |
CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F");
|
|
2451 |
CHECK_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D");
|
|
2452 |
CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B");
|
|
2453 |
CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S");
|
|
2454 |
CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I");
|
|
2455 |
CHECK_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J");
|
|
2456 |
|
|
2457 |
// java.lang.ClassLoader
|
|
2458 |
|
|
2459 |
CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;");
|
|
2460 |
|
|
2461 |
// java.lang.System
|
|
2462 |
|
|
2463 |
CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;");
|
|
2464 |
CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;");
|
|
2465 |
CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;");
|
|
2466 |
|
|
2467 |
// java.lang.StackTraceElement
|
|
2468 |
|
|
2469 |
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;");
|
|
2470 |
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;");
|
|
2471 |
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;");
|
|
2472 |
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I");
|
|
2473 |
|
|
2474 |
// java.lang.ref.Reference
|
|
2475 |
|
|
2476 |
CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;");
|
|
2477 |
CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;");
|
|
2478 |
CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;");
|
|
2479 |
// Fake field
|
|
2480 |
//CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;");
|
|
2481 |
CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;");
|
|
2482 |
CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;");
|
|
2483 |
|
|
2484 |
// java.lang.ref.SoftReference
|
|
2485 |
|
|
2486 |
CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J");
|
|
2487 |
CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J");
|
|
2488 |
|
|
2489 |
// java.lang.AssertionStatusDirectives
|
|
2490 |
//
|
|
2491 |
// The CheckAssertionStatusDirectives boolean can be removed from here and
|
|
2492 |
// globals.hpp after the AssertionStatusDirectives class has been integrated
|
|
2493 |
// into merlin "for some time." Without it, the vm will fail with early
|
|
2494 |
// merlin builds.
|
|
2495 |
|
|
2496 |
if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) {
|
|
2497 |
const char* nm = "java/lang/AssertionStatusDirectives";
|
|
2498 |
const char* sig = "[Ljava/lang/String;";
|
|
2499 |
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig);
|
|
2500 |
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z");
|
|
2501 |
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig);
|
|
2502 |
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z");
|
|
2503 |
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z");
|
|
2504 |
}
|
|
2505 |
|
|
2506 |
if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed");
|
|
2507 |
}
|
|
2508 |
|
|
2509 |
#endif // PRODUCT
|
|
2510 |
|
|
2511 |
void javaClasses_init() {
|
|
2512 |
JavaClasses::compute_offsets();
|
|
2513 |
JavaClasses::check_offsets();
|
|
2514 |
FilteredFieldsMap::initialize(); // must be done after computing offsets.
|
|
2515 |
}
|