3240 lines
124 KiB
C++
3240 lines
124 KiB
C++
/*
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/symbolTable.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/debugInfo.hpp"
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#include "code/pcDesc.hpp"
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#include "interpreter/interpreter.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/resourceArea.hpp"
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#include "memory/universe.inline.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/instanceMirrorKlass.hpp"
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#include "oops/klass.hpp"
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#include "oops/klassOop.hpp"
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#include "oops/methodOop.hpp"
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#include "oops/symbol.hpp"
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#include "oops/typeArrayOop.hpp"
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#include "runtime/fieldDescriptor.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/interfaceSupport.hpp"
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#include "runtime/java.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/safepoint.hpp"
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#include "runtime/vframe.hpp"
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#include "utilities/preserveException.hpp"
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#ifdef TARGET_OS_FAMILY_linux
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# include "thread_linux.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "thread_solaris.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "thread_windows.inline.hpp"
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#endif
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static bool find_field(instanceKlass* ik,
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Symbol* name_symbol, Symbol* signature_symbol,
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fieldDescriptor* fd,
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bool allow_super = false) {
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if (allow_super)
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return ik->find_field(name_symbol, signature_symbol, fd) != NULL;
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else
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return ik->find_local_field(name_symbol, signature_symbol, fd);
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}
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// Helpful routine for computing field offsets at run time rather than hardcoding them
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static void
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compute_offset(int &dest_offset,
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klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol,
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bool allow_super = false) {
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fieldDescriptor fd;
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instanceKlass* ik = instanceKlass::cast(klass_oop);
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if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) {
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ResourceMark rm;
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tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string());
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fatal("Invalid layout of preloaded class");
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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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static void
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compute_optional_offset(int& dest_offset,
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klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol,
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bool allow_super = false) {
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fieldDescriptor fd;
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instanceKlass* ik = instanceKlass::cast(klass_oop);
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if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) {
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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, JavaObjectsInPerm, 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(Symbol* 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, os::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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HandleMark hm(thread);
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ThreadToNativeFromVM ttn(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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// Converts a Java String to a native C string that can be used for
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// native OS calls.
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char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) {
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typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*);
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static to_platform_string_fn_t _to_platform_string_fn = NULL;
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if (_to_platform_string_fn == NULL) {
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void *lib_handle = os::native_java_library();
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_to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars"));
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if (_to_platform_string_fn == NULL) {
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fatal("GetStringPlatformChars missing");
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}
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}
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char *native_platform_string;
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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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JNIEnv *env = thread->jni_environment();
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jstring js = (jstring) JNIHandles::make_local(env, java_string());
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bool is_copy;
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HandleMark hm(thread);
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ThreadToNativeFromVM ttn(thread);
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native_platform_string = (_to_platform_string_fn)(env, js, &is_copy);
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assert(is_copy == JNI_TRUE, "is_copy value changed");
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JNIHandles::destroy_local(js);
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}
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return native_platform_string;
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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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unsigned int java_lang_String::hash_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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if (length == 0) return 0;
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return hash_string(value->char_at_addr(offset), length);
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}
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Symbol* 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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jchar* base = (length == 0) ? NULL : value->char_at_addr(offset);
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Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD);
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return sym;
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}
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Symbol* java_lang_String::as_symbol_or_null(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* base = (length == 0) ? NULL : value->char_at_addr(offset);
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return SymbolTable::probe_unicode(base, length);
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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, char* buf, int buflen) {
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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, buf, buflen);
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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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static void initialize_static_field(fieldDescriptor* fd, TRAPS) {
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Handle mirror (THREAD, fd->field_holder()->java_mirror());
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assert(mirror.not_null() && fd->is_static(), "just checking");
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if (fd->has_initial_value()) {
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BasicType t = fd->field_type();
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switch (t) {
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case T_BYTE:
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mirror()->byte_field_put(fd->offset(), fd->int_initial_value());
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break;
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case T_BOOLEAN:
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mirror()->bool_field_put(fd->offset(), fd->int_initial_value());
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break;
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case T_CHAR:
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mirror()->char_field_put(fd->offset(), fd->int_initial_value());
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break;
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case T_SHORT:
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mirror()->short_field_put(fd->offset(), fd->int_initial_value());
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break;
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case T_INT:
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mirror()->int_field_put(fd->offset(), fd->int_initial_value());
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break;
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case T_FLOAT:
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mirror()->float_field_put(fd->offset(), fd->float_initial_value());
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break;
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case T_DOUBLE:
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mirror()->double_field_put(fd->offset(), fd->double_initial_value());
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break;
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case T_LONG:
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mirror()->long_field_put(fd->offset(), fd->long_initial_value());
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break;
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case T_OBJECT:
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{
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#ifdef ASSERT
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TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK);
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assert(fd->signature() == sym, "just checking");
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#endif
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oop string = fd->string_initial_value(CHECK);
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mirror()->obj_field_put(fd->offset(), string);
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}
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break;
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default:
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THROW_MSG(vmSymbols::java_lang_ClassFormatError(),
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"Illegal ConstantValue attribute in class file");
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}
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}
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}
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// During bootstrap, java.lang.Class wasn't loaded so static field
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// offsets were computed without the size added it. Go back and
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// update all the static field offsets to included the size.
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static void fixup_static_field(fieldDescriptor* fd, TRAPS) {
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if (fd->is_static()) {
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int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields();
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typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields();
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fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset));
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fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset));
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}
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}
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void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) {
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assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already");
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if (k->oop_is_instance()) {
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// Fixup the offsets
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instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK);
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}
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create_mirror(k, CHECK);
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}
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oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) {
|
|
assert(k->java_mirror() == NULL, "should only assign mirror once");
|
|
// Use this moment of initialization to cache modifier_flags also,
|
|
// to support Class.getModifiers(). Instance classes recalculate
|
|
// the cached flags after the class file is parsed, but before the
|
|
// class is put into the system dictionary.
|
|
int computed_modifiers = k->compute_modifier_flags(CHECK_0);
|
|
k->set_modifier_flags(computed_modifiers);
|
|
if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) {
|
|
// Allocate mirror (java.lang.Class instance)
|
|
Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0);
|
|
// Setup indirections
|
|
mirror->obj_field_put(klass_offset, k());
|
|
k->set_java_mirror(mirror());
|
|
|
|
instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass());
|
|
java_lang_Class::set_oop_size(mirror(), mk->instance_size(k));
|
|
java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror()));
|
|
|
|
// It might also have a component mirror. This mirror must already exist.
|
|
if (k->oop_is_javaArray()) {
|
|
Handle comp_mirror;
|
|
if (k->oop_is_typeArray()) {
|
|
BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type();
|
|
comp_mirror = Universe::java_mirror(type);
|
|
assert(comp_mirror.not_null(), "must have primitive mirror");
|
|
} else if (k->oop_is_objArray()) {
|
|
klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass();
|
|
if (element_klass != NULL
|
|
&& (Klass::cast(element_klass)->oop_is_instance() ||
|
|
Klass::cast(element_klass)->oop_is_javaArray())) {
|
|
comp_mirror = Klass::cast(element_klass)->java_mirror();
|
|
assert(comp_mirror.not_null(), "must have element mirror");
|
|
}
|
|
// else some object array internal to the VM, like systemObjArrayKlassObj
|
|
}
|
|
if (comp_mirror.not_null()) {
|
|
// Two-way link between the array klass and its component mirror:
|
|
arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror());
|
|
set_array_klass(comp_mirror(), k->as_klassOop());
|
|
}
|
|
} else if (k->oop_is_instance()) {
|
|
// Initialize static fields
|
|
instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL);
|
|
}
|
|
return mirror();
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
int java_lang_Class::oop_size(oop java_class) {
|
|
assert(oop_size_offset != 0, "must be set");
|
|
return java_class->int_field(oop_size_offset);
|
|
}
|
|
void java_lang_Class::set_oop_size(oop java_class, int size) {
|
|
assert(oop_size_offset != 0, "must be set");
|
|
java_class->int_field_put(oop_size_offset, size);
|
|
}
|
|
int java_lang_Class::static_oop_field_count(oop java_class) {
|
|
assert(static_oop_field_count_offset != 0, "must be set");
|
|
return java_class->int_field(static_oop_field_count_offset);
|
|
}
|
|
void java_lang_Class::set_static_oop_field_count(oop java_class, int size) {
|
|
assert(static_oop_field_count_offset != 0, "must be set");
|
|
java_class->int_field_put(static_oop_field_count_offset, size);
|
|
}
|
|
|
|
|
|
|
|
|
|
oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) {
|
|
// This should be improved by adding a field at the Java level or by
|
|
// introducing a new VM klass (see comment in ClassFileParser)
|
|
oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0);
|
|
if (type != T_VOID) {
|
|
klassOop aklass = Universe::typeArrayKlassObj(type);
|
|
assert(aklass != NULL, "correct bootstrap");
|
|
set_array_klass(java_class, aklass);
|
|
}
|
|
instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass());
|
|
java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL)));
|
|
java_lang_Class::set_static_oop_field_count(java_class, 0);
|
|
return java_class;
|
|
}
|
|
|
|
|
|
klassOop java_lang_Class::as_klassOop(oop java_class) {
|
|
//%note memory_2
|
|
assert(java_lang_Class::is_instance(java_class), "must be a Class object");
|
|
klassOop k = klassOop(java_class->obj_field(klass_offset));
|
|
assert(k == NULL || k->is_klass(), "type check");
|
|
return k;
|
|
}
|
|
|
|
|
|
void java_lang_Class::print_signature(oop java_class, outputStream* st) {
|
|
assert(java_lang_Class::is_instance(java_class), "must be a Class object");
|
|
Symbol* name = NULL;
|
|
bool is_instance = false;
|
|
if (is_primitive(java_class)) {
|
|
name = vmSymbols::type_signature(primitive_type(java_class));
|
|
} else {
|
|
klassOop k = as_klassOop(java_class);
|
|
is_instance = Klass::cast(k)->oop_is_instance();
|
|
name = Klass::cast(k)->name();
|
|
}
|
|
if (name == NULL) {
|
|
st->print("<null>");
|
|
return;
|
|
}
|
|
if (is_instance) st->print("L");
|
|
st->write((char*) name->base(), (int) name->utf8_length());
|
|
if (is_instance) st->print(";");
|
|
}
|
|
|
|
Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) {
|
|
assert(java_lang_Class::is_instance(java_class), "must be a Class object");
|
|
Symbol* name;
|
|
if (is_primitive(java_class)) {
|
|
name = vmSymbols::type_signature(primitive_type(java_class));
|
|
// Because this can create a new symbol, the caller has to decrement
|
|
// the refcount, so make adjustment here and below for symbols returned
|
|
// that are not created or incremented due to a successful lookup.
|
|
name->increment_refcount();
|
|
} else {
|
|
klassOop k = as_klassOop(java_class);
|
|
if (!Klass::cast(k)->oop_is_instance()) {
|
|
name = Klass::cast(k)->name();
|
|
name->increment_refcount();
|
|
} else {
|
|
ResourceMark rm;
|
|
const char* sigstr = Klass::cast(k)->signature_name();
|
|
int siglen = (int) strlen(sigstr);
|
|
if (!intern_if_not_found) {
|
|
name = SymbolTable::probe(sigstr, siglen);
|
|
} else {
|
|
name = SymbolTable::new_symbol(sigstr, siglen, THREAD);
|
|
}
|
|
}
|
|
}
|
|
return name;
|
|
}
|
|
|
|
|
|
klassOop java_lang_Class::array_klass(oop java_class) {
|
|
klassOop k = klassOop(java_class->obj_field(array_klass_offset));
|
|
assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass");
|
|
return k;
|
|
}
|
|
|
|
|
|
void java_lang_Class::set_array_klass(oop java_class, klassOop klass) {
|
|
assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass");
|
|
java_class->obj_field_put(array_klass_offset, klass);
|
|
}
|
|
|
|
|
|
methodOop java_lang_Class::resolved_constructor(oop java_class) {
|
|
oop constructor = java_class->obj_field(resolved_constructor_offset);
|
|
assert(constructor == NULL || constructor->is_method(), "should be method");
|
|
return methodOop(constructor);
|
|
}
|
|
|
|
|
|
void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) {
|
|
assert(constructor->is_method(), "should be method");
|
|
java_class->obj_field_put(resolved_constructor_offset, constructor);
|
|
}
|
|
|
|
|
|
bool java_lang_Class::is_primitive(oop java_class) {
|
|
// should assert:
|
|
//assert(java_lang_Class::is_instance(java_class), "must be a Class object");
|
|
klassOop k = klassOop(java_class->obj_field(klass_offset));
|
|
return k == NULL;
|
|
}
|
|
|
|
|
|
BasicType java_lang_Class::primitive_type(oop java_class) {
|
|
assert(java_lang_Class::is_primitive(java_class), "just checking");
|
|
klassOop ak = klassOop(java_class->obj_field(array_klass_offset));
|
|
BasicType type = T_VOID;
|
|
if (ak != NULL) {
|
|
// Note: create_basic_type_mirror above initializes ak to a non-null value.
|
|
type = arrayKlass::cast(ak)->element_type();
|
|
} else {
|
|
assert(java_class == Universe::void_mirror(), "only valid non-array primitive");
|
|
}
|
|
assert(Universe::java_mirror(type) == java_class, "must be consistent");
|
|
return type;
|
|
}
|
|
|
|
BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) {
|
|
assert(java_lang_Class::is_instance(java_class), "must be a Class object");
|
|
if (is_primitive(java_class)) {
|
|
if (reference_klass != NULL)
|
|
(*reference_klass) = NULL;
|
|
return primitive_type(java_class);
|
|
} else {
|
|
if (reference_klass != NULL)
|
|
(*reference_klass) = as_klassOop(java_class);
|
|
return T_OBJECT;
|
|
}
|
|
}
|
|
|
|
|
|
oop java_lang_Class::primitive_mirror(BasicType t) {
|
|
oop mirror = Universe::java_mirror(t);
|
|
assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class");
|
|
assert(java_lang_Class::is_primitive(mirror), "must be primitive");
|
|
return mirror;
|
|
}
|
|
|
|
bool java_lang_Class::offsets_computed = false;
|
|
int java_lang_Class::classRedefinedCount_offset = -1;
|
|
int java_lang_Class::parallelCapable_offset = -1;
|
|
|
|
void java_lang_Class::compute_offsets() {
|
|
assert(!offsets_computed, "offsets should be initialized only once");
|
|
offsets_computed = true;
|
|
|
|
klassOop k = SystemDictionary::Class_klass();
|
|
// The classRedefinedCount field is only present starting in 1.5,
|
|
// so don't go fatal.
|
|
compute_optional_offset(classRedefinedCount_offset,
|
|
k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature());
|
|
|
|
// The field indicating parallelCapable (parallelLockMap) is only present starting in 7,
|
|
klassOop k1 = SystemDictionary::ClassLoader_klass();
|
|
compute_optional_offset(parallelCapable_offset,
|
|
k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature());
|
|
}
|
|
|
|
// For class loader classes, parallelCapable defined
|
|
// based on non-null field
|
|
// Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it
|
|
bool java_lang_Class::parallelCapable(oop class_loader) {
|
|
if (!JDK_Version::is_gte_jdk17x_version()
|
|
|| parallelCapable_offset == -1) {
|
|
// Default for backward compatibility is false
|
|
return false;
|
|
}
|
|
return (class_loader->obj_field(parallelCapable_offset) != NULL);
|
|
}
|
|
|
|
int java_lang_Class::classRedefinedCount(oop the_class_mirror) {
|
|
if (!JDK_Version::is_gte_jdk15x_version()
|
|
|| classRedefinedCount_offset == -1) {
|
|
// The classRedefinedCount field is only present starting in 1.5.
|
|
// If we don't have an offset for it then just return -1 as a marker.
|
|
return -1;
|
|
}
|
|
|
|
return the_class_mirror->int_field(classRedefinedCount_offset);
|
|
}
|
|
|
|
void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) {
|
|
if (!JDK_Version::is_gte_jdk15x_version()
|
|
|| classRedefinedCount_offset == -1) {
|
|
// The classRedefinedCount field is only present starting in 1.5.
|
|
// If we don't have an offset for it then nothing to set.
|
|
return;
|
|
}
|
|
|
|
the_class_mirror->int_field_put(classRedefinedCount_offset, value);
|
|
}
|
|
|
|
|
|
// Note: JDK1.1 and before had a privateInfo_offset field which was used for the
|
|
// platform thread structure, and a eetop offset which was used for thread
|
|
// local storage (and unused by the HotSpot VM). In JDK1.2 the two structures
|
|
// merged, so in the HotSpot VM we just use the eetop field for the thread
|
|
// instead of the privateInfo_offset.
|
|
//
|
|
// Note: The stackSize field is only present starting in 1.4.
|
|
|
|
int java_lang_Thread::_name_offset = 0;
|
|
int java_lang_Thread::_group_offset = 0;
|
|
int java_lang_Thread::_contextClassLoader_offset = 0;
|
|
int java_lang_Thread::_inheritedAccessControlContext_offset = 0;
|
|
int java_lang_Thread::_priority_offset = 0;
|
|
int java_lang_Thread::_eetop_offset = 0;
|
|
int java_lang_Thread::_daemon_offset = 0;
|
|
int java_lang_Thread::_stillborn_offset = 0;
|
|
int java_lang_Thread::_stackSize_offset = 0;
|
|
int java_lang_Thread::_tid_offset = 0;
|
|
int java_lang_Thread::_thread_status_offset = 0;
|
|
int java_lang_Thread::_park_blocker_offset = 0;
|
|
int java_lang_Thread::_park_event_offset = 0 ;
|
|
|
|
|
|
void java_lang_Thread::compute_offsets() {
|
|
assert(_group_offset == 0, "offsets should be initialized only once");
|
|
|
|
klassOop k = SystemDictionary::Thread_klass();
|
|
compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature());
|
|
compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature());
|
|
compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature());
|
|
compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature());
|
|
compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature());
|
|
compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
|
|
compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature());
|
|
compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature());
|
|
// The stackSize field is only present starting in 1.4, so don't go fatal.
|
|
compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature());
|
|
// The tid and thread_status fields are only present starting in 1.5, so don't go fatal.
|
|
compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature());
|
|
compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature());
|
|
// The parkBlocker field is only present starting in 1.6, so don't go fatal.
|
|
compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature());
|
|
compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(),
|
|
vmSymbols::long_signature());
|
|
}
|
|
|
|
|
|
JavaThread* java_lang_Thread::thread(oop java_thread) {
|
|
return (JavaThread*)java_thread->address_field(_eetop_offset);
|
|
}
|
|
|
|
|
|
void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) {
|
|
java_thread->address_field_put(_eetop_offset, (address)thread);
|
|
}
|
|
|
|
|
|
typeArrayOop java_lang_Thread::name(oop java_thread) {
|
|
oop name = java_thread->obj_field(_name_offset);
|
|
assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking");
|
|
return typeArrayOop(name);
|
|
}
|
|
|
|
|
|
void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) {
|
|
assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL");
|
|
java_thread->obj_field_put(_name_offset, name);
|
|
}
|
|
|
|
|
|
ThreadPriority java_lang_Thread::priority(oop java_thread) {
|
|
return (ThreadPriority)java_thread->int_field(_priority_offset);
|
|
}
|
|
|
|
|
|
void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) {
|
|
java_thread->int_field_put(_priority_offset, priority);
|
|
}
|
|
|
|
|
|
oop java_lang_Thread::threadGroup(oop java_thread) {
|
|
return java_thread->obj_field(_group_offset);
|
|
}
|
|
|
|
|
|
bool java_lang_Thread::is_stillborn(oop java_thread) {
|
|
return java_thread->bool_field(_stillborn_offset) != 0;
|
|
}
|
|
|
|
|
|
// We never have reason to turn the stillborn bit off
|
|
void java_lang_Thread::set_stillborn(oop java_thread) {
|
|
java_thread->bool_field_put(_stillborn_offset, true);
|
|
}
|
|
|
|
|
|
bool java_lang_Thread::is_alive(oop java_thread) {
|
|
JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
return (thr != NULL);
|
|
}
|
|
|
|
|
|
bool java_lang_Thread::is_daemon(oop java_thread) {
|
|
return java_thread->bool_field(_daemon_offset) != 0;
|
|
}
|
|
|
|
|
|
void java_lang_Thread::set_daemon(oop java_thread) {
|
|
java_thread->bool_field_put(_daemon_offset, true);
|
|
}
|
|
|
|
oop java_lang_Thread::context_class_loader(oop java_thread) {
|
|
return java_thread->obj_field(_contextClassLoader_offset);
|
|
}
|
|
|
|
oop java_lang_Thread::inherited_access_control_context(oop java_thread) {
|
|
return java_thread->obj_field(_inheritedAccessControlContext_offset);
|
|
}
|
|
|
|
|
|
jlong java_lang_Thread::stackSize(oop java_thread) {
|
|
// The stackSize field is only present starting in 1.4
|
|
if (_stackSize_offset > 0) {
|
|
assert(JDK_Version::is_gte_jdk14x_version(), "sanity check");
|
|
return java_thread->long_field(_stackSize_offset);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Write the thread status value to threadStatus field in java.lang.Thread java class.
|
|
void java_lang_Thread::set_thread_status(oop java_thread,
|
|
java_lang_Thread::ThreadStatus status) {
|
|
assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm");
|
|
// The threadStatus is only present starting in 1.5
|
|
if (_thread_status_offset > 0) {
|
|
java_thread->int_field_put(_thread_status_offset, status);
|
|
}
|
|
}
|
|
|
|
// Read thread status value from threadStatus field in java.lang.Thread java class.
|
|
java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) {
|
|
assert(Thread::current()->is_VM_thread() ||
|
|
JavaThread::current()->thread_state() == _thread_in_vm,
|
|
"Java Thread is not running in vm");
|
|
// The threadStatus is only present starting in 1.5
|
|
if (_thread_status_offset > 0) {
|
|
return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
|
|
} else {
|
|
// All we can easily figure out is if it is alive, but that is
|
|
// enough info for a valid unknown status.
|
|
// These aren't restricted to valid set ThreadStatus values, so
|
|
// use JVMTI values and cast.
|
|
JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
if (thr == NULL) {
|
|
// the thread hasn't run yet or is in the process of exiting
|
|
return NEW;
|
|
}
|
|
return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE;
|
|
}
|
|
}
|
|
|
|
|
|
jlong java_lang_Thread::thread_id(oop java_thread) {
|
|
// The thread ID field is only present starting in 1.5
|
|
if (_tid_offset > 0) {
|
|
return java_thread->long_field(_tid_offset);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
oop java_lang_Thread::park_blocker(oop java_thread) {
|
|
assert(JDK_Version::current().supports_thread_park_blocker() &&
|
|
_park_blocker_offset != 0, "Must support parkBlocker field");
|
|
|
|
if (_park_blocker_offset > 0) {
|
|
return java_thread->obj_field(_park_blocker_offset);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
jlong java_lang_Thread::park_event(oop java_thread) {
|
|
if (_park_event_offset > 0) {
|
|
return java_thread->long_field(_park_event_offset);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) {
|
|
if (_park_event_offset > 0) {
|
|
java_thread->long_field_put(_park_event_offset, ptr);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
const char* java_lang_Thread::thread_status_name(oop java_thread) {
|
|
assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status");
|
|
ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
|
|
switch (status) {
|
|
case NEW : return "NEW";
|
|
case RUNNABLE : return "RUNNABLE";
|
|
case SLEEPING : return "TIMED_WAITING (sleeping)";
|
|
case IN_OBJECT_WAIT : return "WAITING (on object monitor)";
|
|
case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)";
|
|
case PARKED : return "WAITING (parking)";
|
|
case PARKED_TIMED : return "TIMED_WAITING (parking)";
|
|
case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)";
|
|
case TERMINATED : return "TERMINATED";
|
|
default : return "UNKNOWN";
|
|
};
|
|
}
|
|
int java_lang_ThreadGroup::_parent_offset = 0;
|
|
int java_lang_ThreadGroup::_name_offset = 0;
|
|
int java_lang_ThreadGroup::_threads_offset = 0;
|
|
int java_lang_ThreadGroup::_groups_offset = 0;
|
|
int java_lang_ThreadGroup::_maxPriority_offset = 0;
|
|
int java_lang_ThreadGroup::_destroyed_offset = 0;
|
|
int java_lang_ThreadGroup::_daemon_offset = 0;
|
|
int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0;
|
|
int java_lang_ThreadGroup::_nthreads_offset = 0;
|
|
int java_lang_ThreadGroup::_ngroups_offset = 0;
|
|
|
|
oop java_lang_ThreadGroup::parent(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return java_thread_group->obj_field(_parent_offset);
|
|
}
|
|
|
|
// ("name as oop" accessor is not necessary)
|
|
|
|
typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) {
|
|
oop name = java_thread_group->obj_field(_name_offset);
|
|
// ThreadGroup.name can be null
|
|
return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name);
|
|
}
|
|
|
|
int java_lang_ThreadGroup::nthreads(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return java_thread_group->int_field(_nthreads_offset);
|
|
}
|
|
|
|
objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) {
|
|
oop threads = java_thread_group->obj_field(_threads_offset);
|
|
assert(threads != NULL, "threadgroups should have threads");
|
|
assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code
|
|
return objArrayOop(threads);
|
|
}
|
|
|
|
int java_lang_ThreadGroup::ngroups(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return java_thread_group->int_field(_ngroups_offset);
|
|
}
|
|
|
|
objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) {
|
|
oop groups = java_thread_group->obj_field(_groups_offset);
|
|
assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code
|
|
return objArrayOop(groups);
|
|
}
|
|
|
|
ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset);
|
|
}
|
|
|
|
bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return java_thread_group->bool_field(_destroyed_offset) != 0;
|
|
}
|
|
|
|
bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return java_thread_group->bool_field(_daemon_offset) != 0;
|
|
}
|
|
|
|
bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) {
|
|
assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0;
|
|
}
|
|
|
|
void java_lang_ThreadGroup::compute_offsets() {
|
|
assert(_parent_offset == 0, "offsets should be initialized only once");
|
|
|
|
klassOop k = SystemDictionary::ThreadGroup_klass();
|
|
|
|
compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature());
|
|
compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature());
|
|
compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature());
|
|
compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature());
|
|
compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature());
|
|
compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
|
|
compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature());
|
|
compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature());
|
|
compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature());
|
|
}
|
|
|
|
oop java_lang_Throwable::backtrace(oop throwable) {
|
|
return throwable->obj_field_acquire(backtrace_offset);
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::set_backtrace(oop throwable, oop value) {
|
|
throwable->release_obj_field_put(backtrace_offset, value);
|
|
}
|
|
|
|
|
|
oop java_lang_Throwable::message(oop throwable) {
|
|
return throwable->obj_field(detailMessage_offset);
|
|
}
|
|
|
|
|
|
oop java_lang_Throwable::message(Handle throwable) {
|
|
return throwable->obj_field(detailMessage_offset);
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::set_message(oop throwable, oop value) {
|
|
throwable->obj_field_put(detailMessage_offset, value);
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::clear_stacktrace(oop throwable) {
|
|
assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
|
|
throwable->obj_field_put(stackTrace_offset, NULL);
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::print(oop throwable, outputStream* st) {
|
|
ResourceMark rm;
|
|
klassOop k = throwable->klass();
|
|
assert(k != NULL, "just checking");
|
|
st->print("%s", instanceKlass::cast(k)->external_name());
|
|
oop msg = message(throwable);
|
|
if (msg != NULL) {
|
|
st->print(": %s", java_lang_String::as_utf8_string(msg));
|
|
}
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::print(Handle throwable, outputStream* st) {
|
|
ResourceMark rm;
|
|
klassOop k = throwable->klass();
|
|
assert(k != NULL, "just checking");
|
|
st->print("%s", instanceKlass::cast(k)->external_name());
|
|
oop msg = message(throwable);
|
|
if (msg != NULL) {
|
|
st->print(": %s", java_lang_String::as_utf8_string(msg));
|
|
}
|
|
}
|
|
|
|
// Print stack trace element to resource allocated buffer
|
|
char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) {
|
|
// Get strings and string lengths
|
|
instanceKlass* klass = instanceKlass::cast(method->method_holder());
|
|
const char* klass_name = klass->external_name();
|
|
int buf_len = (int)strlen(klass_name);
|
|
char* source_file_name;
|
|
if (klass->source_file_name() == NULL) {
|
|
source_file_name = NULL;
|
|
} else {
|
|
source_file_name = klass->source_file_name()->as_C_string();
|
|
buf_len += (int)strlen(source_file_name);
|
|
}
|
|
char* method_name = method->name()->as_C_string();
|
|
buf_len += (int)strlen(method_name);
|
|
|
|
// Allocate temporary buffer with extra space for formatting and line number
|
|
char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64);
|
|
|
|
// Print stack trace line in buffer
|
|
sprintf(buf, "\tat %s.%s", klass_name, method_name);
|
|
if (method->is_native()) {
|
|
strcat(buf, "(Native Method)");
|
|
} else {
|
|
int line_number = method->line_number_from_bci(bci);
|
|
if (source_file_name != NULL && (line_number != -1)) {
|
|
// Sourcename and linenumber
|
|
sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number);
|
|
} else if (source_file_name != NULL) {
|
|
// Just sourcename
|
|
sprintf(buf + (int)strlen(buf), "(%s)", source_file_name);
|
|
} else {
|
|
// Neither soucename and linenumber
|
|
sprintf(buf + (int)strlen(buf), "(Unknown Source)");
|
|
}
|
|
nmethod* nm = method->code();
|
|
if (WizardMode && nm != NULL) {
|
|
sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm);
|
|
}
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) {
|
|
ResourceMark rm;
|
|
char* buf = print_stack_element_to_buffer(method, bci);
|
|
print_to_stream(stream, buf);
|
|
}
|
|
|
|
void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) {
|
|
ResourceMark rm;
|
|
char* buf = print_stack_element_to_buffer(method, bci);
|
|
st->print_cr("%s", buf);
|
|
}
|
|
|
|
void java_lang_Throwable::print_to_stream(Handle stream, const char* str) {
|
|
if (stream.is_null()) {
|
|
tty->print_cr("%s", str);
|
|
} else {
|
|
EXCEPTION_MARK;
|
|
JavaValue result(T_VOID);
|
|
Handle arg (THREAD, oopFactory::new_charArray(str, THREAD));
|
|
if (!HAS_PENDING_EXCEPTION) {
|
|
JavaCalls::call_virtual(&result,
|
|
stream,
|
|
KlassHandle(THREAD, stream->klass()),
|
|
vmSymbols::println_name(),
|
|
vmSymbols::char_array_void_signature(),
|
|
arg,
|
|
THREAD);
|
|
}
|
|
// Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
|
|
if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
const char* java_lang_Throwable::no_stack_trace_message() {
|
|
return "\t<<no stack trace available>>";
|
|
}
|
|
|
|
|
|
// Currently used only for exceptions occurring during startup
|
|
void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) {
|
|
Thread *THREAD = Thread::current();
|
|
Handle h_throwable(THREAD, throwable);
|
|
while (h_throwable.not_null()) {
|
|
objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable())));
|
|
if (result.is_null()) {
|
|
st->print_cr(no_stack_trace_message());
|
|
return;
|
|
}
|
|
|
|
while (result.not_null()) {
|
|
objArrayHandle methods (THREAD,
|
|
objArrayOop(result->obj_at(trace_methods_offset)));
|
|
typeArrayHandle bcis (THREAD,
|
|
typeArrayOop(result->obj_at(trace_bcis_offset)));
|
|
|
|
if (methods.is_null() || bcis.is_null()) {
|
|
st->print_cr(no_stack_trace_message());
|
|
return;
|
|
}
|
|
|
|
int length = methods()->length();
|
|
for (int index = 0; index < length; index++) {
|
|
methodOop method = methodOop(methods()->obj_at(index));
|
|
if (method == NULL) goto handle_cause;
|
|
int bci = bcis->ushort_at(index);
|
|
print_stack_element(st, method, bci);
|
|
}
|
|
result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset)));
|
|
}
|
|
handle_cause:
|
|
{
|
|
EXCEPTION_MARK;
|
|
JavaValue result(T_OBJECT);
|
|
JavaCalls::call_virtual(&result,
|
|
h_throwable,
|
|
KlassHandle(THREAD, h_throwable->klass()),
|
|
vmSymbols::getCause_name(),
|
|
vmSymbols::void_throwable_signature(),
|
|
THREAD);
|
|
// Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
h_throwable = Handle();
|
|
} else {
|
|
h_throwable = Handle(THREAD, (oop) result.get_jobject());
|
|
if (h_throwable.not_null()) {
|
|
st->print("Caused by: ");
|
|
print(h_throwable, st);
|
|
st->cr();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) {
|
|
// Note: this is no longer used in Merlin, but we support it for compatibility.
|
|
Thread *thread = Thread::current();
|
|
Handle stream(thread, print_stream);
|
|
objArrayHandle result (thread, objArrayOop(backtrace(throwable)));
|
|
if (result.is_null()) {
|
|
print_to_stream(stream, no_stack_trace_message());
|
|
return;
|
|
}
|
|
|
|
while (result.not_null()) {
|
|
objArrayHandle methods (thread,
|
|
objArrayOop(result->obj_at(trace_methods_offset)));
|
|
typeArrayHandle bcis (thread,
|
|
typeArrayOop(result->obj_at(trace_bcis_offset)));
|
|
|
|
if (methods.is_null() || bcis.is_null()) {
|
|
print_to_stream(stream, no_stack_trace_message());
|
|
return;
|
|
}
|
|
|
|
int length = methods()->length();
|
|
for (int index = 0; index < length; index++) {
|
|
methodOop method = methodOop(methods()->obj_at(index));
|
|
if (method == NULL) return;
|
|
int bci = bcis->ushort_at(index);
|
|
print_stack_element(stream, method, bci);
|
|
}
|
|
result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset)));
|
|
}
|
|
}
|
|
|
|
// This class provides a simple wrapper over the internal structure of
|
|
// exception backtrace to insulate users of the backtrace from needing
|
|
// to know what it looks like.
|
|
class BacktraceBuilder: public StackObj {
|
|
private:
|
|
Handle _backtrace;
|
|
objArrayOop _head;
|
|
objArrayOop _methods;
|
|
typeArrayOop _bcis;
|
|
int _index;
|
|
bool _dirty;
|
|
No_Safepoint_Verifier _nsv;
|
|
|
|
public:
|
|
|
|
enum {
|
|
trace_methods_offset = java_lang_Throwable::trace_methods_offset,
|
|
trace_bcis_offset = java_lang_Throwable::trace_bcis_offset,
|
|
trace_next_offset = java_lang_Throwable::trace_next_offset,
|
|
trace_size = java_lang_Throwable::trace_size,
|
|
trace_chunk_size = java_lang_Throwable::trace_chunk_size
|
|
};
|
|
|
|
// constructor for new backtrace
|
|
BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) {
|
|
expand(CHECK);
|
|
_backtrace = _head;
|
|
_index = 0;
|
|
}
|
|
|
|
void flush() {
|
|
// The following appears to have been an optimization to save from
|
|
// doing a barrier for each individual store into the _methods array,
|
|
// but rather to do it for the entire array after the series of writes.
|
|
// That optimization seems to have been lost when compressed oops was
|
|
// implemented. However, the extra card-marks below was left in place,
|
|
// but is now redundant because the individual stores into the
|
|
// _methods array already execute the barrier code. CR 6918185 has
|
|
// been filed so the original code may be restored by deferring the
|
|
// barriers until after the entire sequence of stores, thus re-enabling
|
|
// the intent of the original optimization. In the meantime the redundant
|
|
// card mark below is now disabled.
|
|
if (_dirty && _methods != NULL) {
|
|
#if 0
|
|
BarrierSet* bs = Universe::heap()->barrier_set();
|
|
assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
|
|
bs->write_ref_array((HeapWord*)_methods->base(), _methods->length());
|
|
#endif
|
|
_dirty = false;
|
|
}
|
|
}
|
|
|
|
void expand(TRAPS) {
|
|
flush();
|
|
|
|
objArrayHandle old_head(THREAD, _head);
|
|
Pause_No_Safepoint_Verifier pnsv(&_nsv);
|
|
|
|
objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK);
|
|
objArrayHandle new_head(THREAD, head);
|
|
|
|
objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK);
|
|
objArrayHandle new_methods(THREAD, methods);
|
|
|
|
typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK);
|
|
typeArrayHandle new_bcis(THREAD, bcis);
|
|
|
|
if (!old_head.is_null()) {
|
|
old_head->obj_at_put(trace_next_offset, new_head());
|
|
}
|
|
new_head->obj_at_put(trace_methods_offset, new_methods());
|
|
new_head->obj_at_put(trace_bcis_offset, new_bcis());
|
|
|
|
_head = new_head();
|
|
_methods = new_methods();
|
|
_bcis = new_bcis();
|
|
_index = 0;
|
|
}
|
|
|
|
oop backtrace() {
|
|
flush();
|
|
return _backtrace();
|
|
}
|
|
|
|
inline void push(methodOop method, short bci, TRAPS) {
|
|
if (_index >= trace_chunk_size) {
|
|
methodHandle mhandle(THREAD, method);
|
|
expand(CHECK);
|
|
method = mhandle();
|
|
}
|
|
|
|
_methods->obj_at_put(_index, method);
|
|
_bcis->ushort_at_put(_index, bci);
|
|
_index++;
|
|
_dirty = true;
|
|
}
|
|
|
|
methodOop current_method() {
|
|
assert(_index >= 0 && _index < trace_chunk_size, "out of range");
|
|
return methodOop(_methods->obj_at(_index));
|
|
}
|
|
|
|
jushort current_bci() {
|
|
assert(_index >= 0 && _index < trace_chunk_size, "out of range");
|
|
return _bcis->ushort_at(_index);
|
|
}
|
|
};
|
|
|
|
|
|
void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) {
|
|
if (!StackTraceInThrowable) return;
|
|
ResourceMark rm(THREAD);
|
|
|
|
// Start out by clearing the backtrace for this object, in case the VM
|
|
// runs out of memory while allocating the stack trace
|
|
set_backtrace(throwable(), NULL);
|
|
if (JDK_Version::is_gte_jdk14x_version()) {
|
|
// New since 1.4, clear lazily constructed Java level stacktrace if
|
|
// refilling occurs
|
|
clear_stacktrace(throwable());
|
|
}
|
|
|
|
int max_depth = MaxJavaStackTraceDepth;
|
|
JavaThread* thread = (JavaThread*)THREAD;
|
|
BacktraceBuilder bt(CHECK);
|
|
|
|
// If there is no Java frame just return the method that was being called
|
|
// with bci 0
|
|
if (!thread->has_last_Java_frame()) {
|
|
if (max_depth >= 1 && method() != NULL) {
|
|
bt.push(method(), 0, CHECK);
|
|
set_backtrace(throwable(), bt.backtrace());
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Instead of using vframe directly, this version of fill_in_stack_trace
|
|
// basically handles everything by hand. This significantly improved the
|
|
// speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows.
|
|
// See bug 6333838 for more details.
|
|
// The "ASSERT" here is to verify this method generates the exactly same stack
|
|
// trace as utilizing vframe.
|
|
#ifdef ASSERT
|
|
vframeStream st(thread);
|
|
methodHandle st_method(THREAD, st.method());
|
|
#endif
|
|
int total_count = 0;
|
|
RegisterMap map(thread, false);
|
|
int decode_offset = 0;
|
|
nmethod* nm = NULL;
|
|
bool skip_fillInStackTrace_check = false;
|
|
bool skip_throwableInit_check = false;
|
|
|
|
for (frame fr = thread->last_frame(); max_depth != total_count;) {
|
|
methodOop method = NULL;
|
|
int bci = 0;
|
|
|
|
// Compiled java method case.
|
|
if (decode_offset != 0) {
|
|
DebugInfoReadStream stream(nm, decode_offset);
|
|
decode_offset = stream.read_int();
|
|
method = (methodOop)nm->oop_at(stream.read_int());
|
|
bci = stream.read_bci();
|
|
} else {
|
|
if (fr.is_first_frame()) break;
|
|
address pc = fr.pc();
|
|
if (fr.is_interpreted_frame()) {
|
|
intptr_t bcx = fr.interpreter_frame_bcx();
|
|
method = fr.interpreter_frame_method();
|
|
bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx);
|
|
fr = fr.sender(&map);
|
|
} else {
|
|
CodeBlob* cb = fr.cb();
|
|
// HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL
|
|
// but non nmethod
|
|
fr = fr.sender(&map);
|
|
if (cb == NULL || !cb->is_nmethod()) {
|
|
continue;
|
|
}
|
|
nm = (nmethod*)cb;
|
|
if (nm->method()->is_native()) {
|
|
method = nm->method();
|
|
bci = 0;
|
|
} else {
|
|
PcDesc* pd = nm->pc_desc_at(pc);
|
|
decode_offset = pd->scope_decode_offset();
|
|
// if decode_offset is not equal to 0, it will execute the
|
|
// "compiled java method case" at the beginning of the loop.
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
#ifdef ASSERT
|
|
assert(st_method() == method && st.bci() == bci,
|
|
"Wrong stack trace");
|
|
st.next();
|
|
// vframeStream::method isn't GC-safe so store off a copy
|
|
// of the methodOop in case we GC.
|
|
if (!st.at_end()) {
|
|
st_method = st.method();
|
|
}
|
|
#endif
|
|
|
|
// the format of the stacktrace will be:
|
|
// - 1 or more fillInStackTrace frames for the exception class (skipped)
|
|
// - 0 or more <init> methods for the exception class (skipped)
|
|
// - rest of the stack
|
|
|
|
if (!skip_fillInStackTrace_check) {
|
|
if ((method->name() == vmSymbols::fillInStackTrace_name() ||
|
|
method->name() == vmSymbols::fillInStackTrace0_name()) &&
|
|
throwable->is_a(method->method_holder())) {
|
|
continue;
|
|
}
|
|
else {
|
|
skip_fillInStackTrace_check = true; // gone past them all
|
|
}
|
|
}
|
|
if (!skip_throwableInit_check) {
|
|
assert(skip_fillInStackTrace_check, "logic error in backtrace filtering");
|
|
|
|
// skip <init> methods of the exception class and superclasses
|
|
// This is simlar to classic VM.
|
|
if (method->name() == vmSymbols::object_initializer_name() &&
|
|
throwable->is_a(method->method_holder())) {
|
|
continue;
|
|
} else {
|
|
// there are none or we've seen them all - either way stop checking
|
|
skip_throwableInit_check = true;
|
|
}
|
|
}
|
|
bt.push(method, bci, CHECK);
|
|
total_count++;
|
|
}
|
|
|
|
// Put completed stack trace into throwable object
|
|
set_backtrace(throwable(), bt.backtrace());
|
|
}
|
|
|
|
void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) {
|
|
// No-op if stack trace is disabled
|
|
if (!StackTraceInThrowable) {
|
|
return;
|
|
}
|
|
|
|
// Disable stack traces for some preallocated out of memory errors
|
|
if (!Universe::should_fill_in_stack_trace(throwable)) {
|
|
return;
|
|
}
|
|
|
|
PRESERVE_EXCEPTION_MARK;
|
|
|
|
JavaThread* thread = JavaThread::active();
|
|
fill_in_stack_trace(throwable, method, thread);
|
|
// ignore exceptions thrown during stack trace filling
|
|
CLEAR_PENDING_EXCEPTION;
|
|
}
|
|
|
|
void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) {
|
|
// Allocate stack trace - backtrace is created but not filled in
|
|
|
|
// No-op if stack trace is disabled
|
|
if (!StackTraceInThrowable) return;
|
|
|
|
objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK);
|
|
objArrayHandle backtrace (THREAD, h_oop);
|
|
objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK);
|
|
objArrayHandle methods (THREAD, m_oop);
|
|
typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK);
|
|
typeArrayHandle bcis(THREAD, b);
|
|
|
|
// backtrace has space for one chunk (next is NULL)
|
|
backtrace->obj_at_put(trace_methods_offset, methods());
|
|
backtrace->obj_at_put(trace_bcis_offset, bcis());
|
|
set_backtrace(throwable(), backtrace());
|
|
}
|
|
|
|
|
|
void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) {
|
|
// Fill in stack trace into preallocated backtrace (no GC)
|
|
|
|
// No-op if stack trace is disabled
|
|
if (!StackTraceInThrowable) return;
|
|
|
|
assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check");
|
|
|
|
oop backtrace = java_lang_Throwable::backtrace(throwable());
|
|
assert(backtrace != NULL, "backtrace not preallocated");
|
|
|
|
oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset);
|
|
objArrayOop methods = objArrayOop(m);
|
|
assert(methods != NULL && methods->length() > 0, "method array not preallocated");
|
|
|
|
oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset);
|
|
typeArrayOop bcis = typeArrayOop(b);
|
|
assert(bcis != NULL, "bci array not preallocated");
|
|
|
|
assert(methods->length() == bcis->length(), "method and bci arrays should match");
|
|
|
|
JavaThread* thread = JavaThread::current();
|
|
ResourceMark rm(thread);
|
|
vframeStream st(thread);
|
|
|
|
// Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init
|
|
// methods as preallocated errors aren't created by "java" code.
|
|
|
|
// fill in as much stack trace as possible
|
|
int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth);
|
|
int chunk_count = 0;
|
|
|
|
for (;!st.at_end(); st.next()) {
|
|
// add element
|
|
bcis->ushort_at_put(chunk_count, st.bci());
|
|
methods->obj_at_put(chunk_count, st.method());
|
|
|
|
chunk_count++;
|
|
|
|
// Bail-out for deep stacks
|
|
if (chunk_count >= max_chunks) break;
|
|
}
|
|
}
|
|
|
|
|
|
int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) {
|
|
if (throwable == NULL) {
|
|
THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
}
|
|
objArrayOop chunk = objArrayOop(backtrace(throwable));
|
|
int depth = 0;
|
|
if (chunk != NULL) {
|
|
// Iterate over chunks and count full ones
|
|
while (true) {
|
|
objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset));
|
|
if (next == NULL) break;
|
|
depth += trace_chunk_size;
|
|
chunk = next;
|
|
}
|
|
assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check");
|
|
// Count element in remaining partial chunk
|
|
objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset));
|
|
typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
|
|
assert(methods != NULL && bcis != NULL, "sanity check");
|
|
for (int i = 0; i < methods->length(); i++) {
|
|
if (methods->obj_at(i) == NULL) break;
|
|
depth++;
|
|
}
|
|
}
|
|
return depth;
|
|
}
|
|
|
|
|
|
oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) {
|
|
if (throwable == NULL) {
|
|
THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
}
|
|
if (index < 0) {
|
|
THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
}
|
|
// Compute how many chunks to skip and index into actual chunk
|
|
objArrayOop chunk = objArrayOop(backtrace(throwable));
|
|
int skip_chunks = index / trace_chunk_size;
|
|
int chunk_index = index % trace_chunk_size;
|
|
while (chunk != NULL && skip_chunks > 0) {
|
|
chunk = objArrayOop(chunk->obj_at(trace_next_offset));
|
|
skip_chunks--;
|
|
}
|
|
if (chunk == NULL) {
|
|
THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
}
|
|
// Get method,bci from chunk
|
|
objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset));
|
|
typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
|
|
assert(methods != NULL && bcis != NULL, "sanity check");
|
|
methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index)));
|
|
int bci = bcis->ushort_at(chunk_index);
|
|
// Chunk can be partial full
|
|
if (method.is_null()) {
|
|
THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
}
|
|
|
|
oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0);
|
|
return element;
|
|
}
|
|
|
|
oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) {
|
|
// SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs
|
|
assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
|
|
|
|
// Allocate java.lang.StackTraceElement instance
|
|
klassOop k = SystemDictionary::StackTraceElement_klass();
|
|
assert(k != NULL, "must be loaded in 1.4+");
|
|
instanceKlassHandle ik (THREAD, k);
|
|
if (ik->should_be_initialized()) {
|
|
ik->initialize(CHECK_0);
|
|
}
|
|
|
|
Handle element = ik->allocate_instance_handle(CHECK_0);
|
|
// Fill in class name
|
|
ResourceMark rm(THREAD);
|
|
const char* str = instanceKlass::cast(method->method_holder())->external_name();
|
|
oop classname = StringTable::intern((char*) str, CHECK_0);
|
|
java_lang_StackTraceElement::set_declaringClass(element(), classname);
|
|
// Fill in method name
|
|
oop methodname = StringTable::intern(method->name(), CHECK_0);
|
|
java_lang_StackTraceElement::set_methodName(element(), methodname);
|
|
// Fill in source file name
|
|
Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name();
|
|
oop filename = StringTable::intern(source, CHECK_0);
|
|
java_lang_StackTraceElement::set_fileName(element(), filename);
|
|
// File in source line number
|
|
int line_number;
|
|
if (method->is_native()) {
|
|
// Negative value different from -1 below, enabling Java code in
|
|
// class java.lang.StackTraceElement to distinguish "native" from
|
|
// "no LineNumberTable".
|
|
line_number = -2;
|
|
} else {
|
|
// Returns -1 if no LineNumberTable, and otherwise actual line number
|
|
line_number = method->line_number_from_bci(bci);
|
|
}
|
|
java_lang_StackTraceElement::set_lineNumber(element(), line_number);
|
|
|
|
return element();
|
|
}
|
|
|
|
|
|
void java_lang_reflect_AccessibleObject::compute_offsets() {
|
|
klassOop k = SystemDictionary::reflect_AccessibleObject_klass();
|
|
compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature());
|
|
}
|
|
|
|
jboolean java_lang_reflect_AccessibleObject::override(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return (jboolean) reflect->bool_field(override_offset);
|
|
}
|
|
|
|
void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->bool_field_put(override_offset, (int) value);
|
|
}
|
|
|
|
void java_lang_reflect_Method::compute_offsets() {
|
|
klassOop k = SystemDictionary::reflect_Method_klass();
|
|
compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature());
|
|
compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
|
|
compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
|
|
compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
// The generic signature and annotations fields are only present in 1.5
|
|
signature_offset = -1;
|
|
annotations_offset = -1;
|
|
parameter_annotations_offset = -1;
|
|
annotation_default_offset = -1;
|
|
compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
|
|
compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature());
|
|
}
|
|
|
|
Handle java_lang_reflect_Method::create(TRAPS) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
klassOop klass = SystemDictionary::reflect_Method_klass();
|
|
// This class is eagerly initialized during VM initialization, since we keep a refence
|
|
// to one of the methods
|
|
assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized");
|
|
return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::clazz(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->obj_field(clazz_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_clazz(oop reflect, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->obj_field_put(clazz_offset, value);
|
|
}
|
|
|
|
int java_lang_reflect_Method::slot(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->int_field(slot_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_slot(oop reflect, int value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->int_field_put(slot_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::name(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return method->obj_field(name_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_name(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
method->obj_field_put(name_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::return_type(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return method->obj_field(returnType_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_return_type(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
method->obj_field_put(returnType_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::parameter_types(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return method->obj_field(parameterTypes_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_parameter_types(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
method->obj_field_put(parameterTypes_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::exception_types(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return method->obj_field(exceptionTypes_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_exception_types(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
method->obj_field_put(exceptionTypes_offset, value);
|
|
}
|
|
|
|
int java_lang_reflect_Method::modifiers(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return method->int_field(modifiers_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_modifiers(oop method, int value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
method->int_field_put(modifiers_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Method::has_signature_field() {
|
|
return (signature_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::signature(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_signature_field(), "signature field must be present");
|
|
return method->obj_field(signature_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_signature(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_signature_field(), "signature field must be present");
|
|
method->obj_field_put(signature_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Method::has_annotations_field() {
|
|
return (annotations_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::annotations(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotations_field(), "annotations field must be present");
|
|
return method->obj_field(annotations_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_annotations(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotations_field(), "annotations field must be present");
|
|
method->obj_field_put(annotations_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Method::has_parameter_annotations_field() {
|
|
return (parameter_annotations_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::parameter_annotations(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
return method->obj_field(parameter_annotations_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
method->obj_field_put(parameter_annotations_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Method::has_annotation_default_field() {
|
|
return (annotation_default_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Method::annotation_default(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotation_default_field(), "annotation default field must be present");
|
|
return method->obj_field(annotation_default_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Method::set_annotation_default(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotation_default_field(), "annotation default field must be present");
|
|
method->obj_field_put(annotation_default_offset, value);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::compute_offsets() {
|
|
klassOop k = SystemDictionary::reflect_Constructor_klass();
|
|
compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
|
|
compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
|
|
compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
// The generic signature and annotations fields are only present in 1.5
|
|
signature_offset = -1;
|
|
annotations_offset = -1;
|
|
parameter_annotations_offset = -1;
|
|
compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
|
|
}
|
|
|
|
Handle java_lang_reflect_Constructor::create(TRAPS) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
Symbol* name = vmSymbols::java_lang_reflect_Constructor();
|
|
klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
|
|
instanceKlassHandle klass (THREAD, k);
|
|
// Ensure it is initialized
|
|
klass->initialize(CHECK_NH);
|
|
return klass->allocate_instance_handle(CHECK_NH);
|
|
}
|
|
|
|
oop java_lang_reflect_Constructor::clazz(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->obj_field(clazz_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->obj_field_put(clazz_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Constructor::parameter_types(oop constructor) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return constructor->obj_field(parameterTypes_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
constructor->obj_field_put(parameterTypes_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Constructor::exception_types(oop constructor) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return constructor->obj_field(exceptionTypes_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
constructor->obj_field_put(exceptionTypes_offset, value);
|
|
}
|
|
|
|
int java_lang_reflect_Constructor::slot(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->int_field(slot_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_slot(oop reflect, int value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->int_field_put(slot_offset, value);
|
|
}
|
|
|
|
int java_lang_reflect_Constructor::modifiers(oop constructor) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return constructor->int_field(modifiers_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
constructor->int_field_put(modifiers_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Constructor::has_signature_field() {
|
|
return (signature_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Constructor::signature(oop constructor) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_signature_field(), "signature field must be present");
|
|
return constructor->obj_field(signature_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_signature_field(), "signature field must be present");
|
|
constructor->obj_field_put(signature_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Constructor::has_annotations_field() {
|
|
return (annotations_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Constructor::annotations(oop constructor) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotations_field(), "annotations field must be present");
|
|
return constructor->obj_field(annotations_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotations_field(), "annotations field must be present");
|
|
constructor->obj_field_put(annotations_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Constructor::has_parameter_annotations_field() {
|
|
return (parameter_annotations_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Constructor::parameter_annotations(oop method) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
return method->obj_field(parameter_annotations_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
method->obj_field_put(parameter_annotations_offset, value);
|
|
}
|
|
|
|
void java_lang_reflect_Field::compute_offsets() {
|
|
klassOop k = SystemDictionary::reflect_Field_klass();
|
|
compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature());
|
|
compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
// The generic signature and annotations fields are only present in 1.5
|
|
signature_offset = -1;
|
|
annotations_offset = -1;
|
|
compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
}
|
|
|
|
Handle java_lang_reflect_Field::create(TRAPS) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
Symbol* name = vmSymbols::java_lang_reflect_Field();
|
|
klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
|
|
instanceKlassHandle klass (THREAD, k);
|
|
// Ensure it is initialized
|
|
klass->initialize(CHECK_NH);
|
|
return klass->allocate_instance_handle(CHECK_NH);
|
|
}
|
|
|
|
oop java_lang_reflect_Field::clazz(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->obj_field(clazz_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_clazz(oop reflect, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->obj_field_put(clazz_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Field::name(oop field) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return field->obj_field(name_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_name(oop field, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
field->obj_field_put(name_offset, value);
|
|
}
|
|
|
|
oop java_lang_reflect_Field::type(oop field) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return field->obj_field(type_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_type(oop field, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
field->obj_field_put(type_offset, value);
|
|
}
|
|
|
|
int java_lang_reflect_Field::slot(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->int_field(slot_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_slot(oop reflect, int value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->int_field_put(slot_offset, value);
|
|
}
|
|
|
|
int java_lang_reflect_Field::modifiers(oop field) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return field->int_field(modifiers_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_modifiers(oop field, int value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
field->int_field_put(modifiers_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Field::has_signature_field() {
|
|
return (signature_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Field::signature(oop field) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_signature_field(), "signature field must be present");
|
|
return field->obj_field(signature_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_signature(oop field, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_signature_field(), "signature field must be present");
|
|
field->obj_field_put(signature_offset, value);
|
|
}
|
|
|
|
bool java_lang_reflect_Field::has_annotations_field() {
|
|
return (annotations_offset >= 0);
|
|
}
|
|
|
|
oop java_lang_reflect_Field::annotations(oop field) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotations_field(), "annotations field must be present");
|
|
return field->obj_field(annotations_offset);
|
|
}
|
|
|
|
void java_lang_reflect_Field::set_annotations(oop field, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
assert(has_annotations_field(), "annotations field must be present");
|
|
field->obj_field_put(annotations_offset, value);
|
|
}
|
|
|
|
|
|
void sun_reflect_ConstantPool::compute_offsets() {
|
|
klassOop k = SystemDictionary::reflect_ConstantPool_klass();
|
|
// This null test can be removed post beta
|
|
if (k != NULL) {
|
|
compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature());
|
|
}
|
|
}
|
|
|
|
|
|
Handle sun_reflect_ConstantPool::create(TRAPS) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
klassOop k = SystemDictionary::reflect_ConstantPool_klass();
|
|
instanceKlassHandle klass (THREAD, k);
|
|
// Ensure it is initialized
|
|
klass->initialize(CHECK_NH);
|
|
return klass->allocate_instance_handle(CHECK_NH);
|
|
}
|
|
|
|
|
|
oop sun_reflect_ConstantPool::cp_oop(oop reflect) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
return reflect->obj_field(_cp_oop_offset);
|
|
}
|
|
|
|
|
|
void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) {
|
|
assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
reflect->obj_field_put(_cp_oop_offset, value);
|
|
}
|
|
|
|
void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() {
|
|
klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass();
|
|
// This null test can be removed post beta
|
|
if (k != NULL) {
|
|
compute_offset(_base_offset, k,
|
|
vmSymbols::base_name(), vmSymbols::object_signature());
|
|
}
|
|
}
|
|
|
|
oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) {
|
|
klassOop k = SystemDictionary::box_klass(type);
|
|
if (k == NULL) return NULL;
|
|
instanceKlassHandle h (THREAD, k);
|
|
if (!h->is_initialized()) h->initialize(CHECK_0);
|
|
return h->allocate_instance(THREAD);
|
|
}
|
|
|
|
|
|
oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) {
|
|
oop box = initialize_and_allocate(type, CHECK_0);
|
|
if (box == NULL) return NULL;
|
|
switch (type) {
|
|
case T_BOOLEAN:
|
|
box->bool_field_put(value_offset, value->z);
|
|
break;
|
|
case T_CHAR:
|
|
box->char_field_put(value_offset, value->c);
|
|
break;
|
|
case T_FLOAT:
|
|
box->float_field_put(value_offset, value->f);
|
|
break;
|
|
case T_DOUBLE:
|
|
box->double_field_put(long_value_offset, value->d);
|
|
break;
|
|
case T_BYTE:
|
|
box->byte_field_put(value_offset, value->b);
|
|
break;
|
|
case T_SHORT:
|
|
box->short_field_put(value_offset, value->s);
|
|
break;
|
|
case T_INT:
|
|
box->int_field_put(value_offset, value->i);
|
|
break;
|
|
case T_LONG:
|
|
box->long_field_put(long_value_offset, value->j);
|
|
break;
|
|
default:
|
|
return NULL;
|
|
}
|
|
return box;
|
|
}
|
|
|
|
|
|
BasicType java_lang_boxing_object::basic_type(oop box) {
|
|
if (box == NULL) return T_ILLEGAL;
|
|
BasicType type = SystemDictionary::box_klass_type(box->klass());
|
|
if (type == T_OBJECT) // 'unknown' value returned by SD::bkt
|
|
return T_ILLEGAL;
|
|
return type;
|
|
}
|
|
|
|
|
|
BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) {
|
|
BasicType type = SystemDictionary::box_klass_type(box->klass());
|
|
switch (type) {
|
|
case T_BOOLEAN:
|
|
value->z = box->bool_field(value_offset);
|
|
break;
|
|
case T_CHAR:
|
|
value->c = box->char_field(value_offset);
|
|
break;
|
|
case T_FLOAT:
|
|
value->f = box->float_field(value_offset);
|
|
break;
|
|
case T_DOUBLE:
|
|
value->d = box->double_field(long_value_offset);
|
|
break;
|
|
case T_BYTE:
|
|
value->b = box->byte_field(value_offset);
|
|
break;
|
|
case T_SHORT:
|
|
value->s = box->short_field(value_offset);
|
|
break;
|
|
case T_INT:
|
|
value->i = box->int_field(value_offset);
|
|
break;
|
|
case T_LONG:
|
|
value->j = box->long_field(long_value_offset);
|
|
break;
|
|
default:
|
|
return T_ILLEGAL;
|
|
} // end switch
|
|
return type;
|
|
}
|
|
|
|
|
|
BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) {
|
|
BasicType type = SystemDictionary::box_klass_type(box->klass());
|
|
switch (type) {
|
|
case T_BOOLEAN:
|
|
box->bool_field_put(value_offset, value->z);
|
|
break;
|
|
case T_CHAR:
|
|
box->char_field_put(value_offset, value->c);
|
|
break;
|
|
case T_FLOAT:
|
|
box->float_field_put(value_offset, value->f);
|
|
break;
|
|
case T_DOUBLE:
|
|
box->double_field_put(long_value_offset, value->d);
|
|
break;
|
|
case T_BYTE:
|
|
box->byte_field_put(value_offset, value->b);
|
|
break;
|
|
case T_SHORT:
|
|
box->short_field_put(value_offset, value->s);
|
|
break;
|
|
case T_INT:
|
|
box->int_field_put(value_offset, value->i);
|
|
break;
|
|
case T_LONG:
|
|
box->long_field_put(long_value_offset, value->j);
|
|
break;
|
|
default:
|
|
return T_ILLEGAL;
|
|
} // end switch
|
|
return type;
|
|
}
|
|
|
|
|
|
void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) {
|
|
switch (type) {
|
|
case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break;
|
|
case T_CHAR: st->print("%d", value->c); break;
|
|
case T_BYTE: st->print("%d", value->b); break;
|
|
case T_SHORT: st->print("%d", value->s); break;
|
|
case T_INT: st->print("%d", value->i); break;
|
|
case T_LONG: st->print(INT64_FORMAT, value->j); break;
|
|
case T_FLOAT: st->print("%f", value->f); break;
|
|
case T_DOUBLE: st->print("%lf", value->d); break;
|
|
default: st->print("type %d?", type); break;
|
|
}
|
|
}
|
|
|
|
|
|
// Support for java_lang_ref_Reference
|
|
oop java_lang_ref_Reference::pending_list_lock() {
|
|
instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass());
|
|
address addr = ik->static_field_addr(static_lock_offset);
|
|
if (UseCompressedOops) {
|
|
return oopDesc::load_decode_heap_oop((narrowOop *)addr);
|
|
} else {
|
|
return oopDesc::load_decode_heap_oop((oop*)addr);
|
|
}
|
|
}
|
|
|
|
HeapWord *java_lang_ref_Reference::pending_list_addr() {
|
|
instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass());
|
|
address addr = ik->static_field_addr(static_pending_offset);
|
|
// XXX This might not be HeapWord aligned, almost rather be char *.
|
|
return (HeapWord*)addr;
|
|
}
|
|
|
|
oop java_lang_ref_Reference::pending_list() {
|
|
char *addr = (char *)pending_list_addr();
|
|
if (UseCompressedOops) {
|
|
return oopDesc::load_decode_heap_oop((narrowOop *)addr);
|
|
} else {
|
|
return oopDesc::load_decode_heap_oop((oop*)addr);
|
|
}
|
|
}
|
|
|
|
|
|
// Support for java_lang_ref_SoftReference
|
|
|
|
jlong java_lang_ref_SoftReference::timestamp(oop ref) {
|
|
return ref->long_field(timestamp_offset);
|
|
}
|
|
|
|
jlong java_lang_ref_SoftReference::clock() {
|
|
instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass());
|
|
jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
|
|
return *offset;
|
|
}
|
|
|
|
void java_lang_ref_SoftReference::set_clock(jlong value) {
|
|
instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass());
|
|
jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset);
|
|
*offset = value;
|
|
}
|
|
|
|
|
|
// Support for java_lang_invoke_MethodHandle
|
|
|
|
int java_lang_invoke_MethodHandle::_type_offset;
|
|
int java_lang_invoke_MethodHandle::_vmtarget_offset;
|
|
int java_lang_invoke_MethodHandle::_vmentry_offset;
|
|
int java_lang_invoke_MethodHandle::_vmslots_offset;
|
|
|
|
int java_lang_invoke_MemberName::_clazz_offset;
|
|
int java_lang_invoke_MemberName::_name_offset;
|
|
int java_lang_invoke_MemberName::_type_offset;
|
|
int java_lang_invoke_MemberName::_flags_offset;
|
|
int java_lang_invoke_MemberName::_vmtarget_offset;
|
|
int java_lang_invoke_MemberName::_vmindex_offset;
|
|
|
|
int java_lang_invoke_DirectMethodHandle::_vmindex_offset;
|
|
|
|
int java_lang_invoke_BoundMethodHandle::_argument_offset;
|
|
int java_lang_invoke_BoundMethodHandle::_vmargslot_offset;
|
|
|
|
int java_lang_invoke_AdapterMethodHandle::_conversion_offset;
|
|
|
|
void java_lang_invoke_MethodHandle::compute_offsets() {
|
|
klassOop k = SystemDictionary::MethodHandle_klass();
|
|
if (k != NULL && EnableInvokeDynamic) {
|
|
bool allow_super = false;
|
|
compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super);
|
|
compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super);
|
|
compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super);
|
|
|
|
// Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots.
|
|
// It is optional pending experiments to keep or toss.
|
|
compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super);
|
|
}
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::compute_offsets() {
|
|
klassOop k = SystemDictionary::MemberName_klass();
|
|
if (k != NULL && EnableInvokeDynamic) {
|
|
compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature());
|
|
compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature());
|
|
compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature());
|
|
compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature());
|
|
}
|
|
}
|
|
|
|
void java_lang_invoke_DirectMethodHandle::compute_offsets() {
|
|
klassOop k = SystemDictionary::DirectMethodHandle_klass();
|
|
if (k != NULL && EnableInvokeDynamic) {
|
|
compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true);
|
|
}
|
|
}
|
|
|
|
void java_lang_invoke_BoundMethodHandle::compute_offsets() {
|
|
klassOop k = SystemDictionary::BoundMethodHandle_klass();
|
|
if (k != NULL && EnableInvokeDynamic) {
|
|
compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true);
|
|
compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true);
|
|
}
|
|
}
|
|
|
|
void java_lang_invoke_AdapterMethodHandle::compute_offsets() {
|
|
klassOop k = SystemDictionary::AdapterMethodHandle_klass();
|
|
if (k != NULL && EnableInvokeDynamic) {
|
|
compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true);
|
|
}
|
|
}
|
|
|
|
oop java_lang_invoke_MethodHandle::type(oop mh) {
|
|
return mh->obj_field(_type_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) {
|
|
mh->obj_field_put(_type_offset, mtype);
|
|
}
|
|
|
|
int java_lang_invoke_MethodHandle::vmslots(oop mh) {
|
|
int vmslots_offset = _vmslots_offset;
|
|
if (vmslots_offset != 0) {
|
|
#ifdef ASSERT
|
|
int x = mh->int_field(vmslots_offset);
|
|
int y = compute_vmslots(mh);
|
|
assert(x == y, "correct hoisted value");
|
|
#endif
|
|
return mh->int_field(vmslots_offset);
|
|
} else {
|
|
return compute_vmslots(mh);
|
|
}
|
|
}
|
|
|
|
// if MH.vmslots exists, hoist into it the value of type.form.vmslots
|
|
void java_lang_invoke_MethodHandle::init_vmslots(oop mh) {
|
|
int vmslots_offset = _vmslots_offset;
|
|
if (vmslots_offset != 0) {
|
|
mh->int_field_put(vmslots_offset, compute_vmslots(mh));
|
|
}
|
|
}
|
|
|
|
// fetch type.form.vmslots, which is the number of JVM stack slots
|
|
// required to carry the arguments of this MH
|
|
int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) {
|
|
oop mtype = type(mh);
|
|
if (mtype == NULL) return 0; // Java code would get NPE
|
|
oop form = java_lang_invoke_MethodType::form(mtype);
|
|
if (form == NULL) return 0; // Java code would get NPE
|
|
return java_lang_invoke_MethodTypeForm::vmslots(form);
|
|
}
|
|
|
|
// fetch the low-level entry point for this mh
|
|
MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) {
|
|
return (MethodHandleEntry*) mh->address_field(_vmentry_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) {
|
|
assert(_vmentry_offset != 0, "must be present");
|
|
|
|
// This is always the final step that initializes a valid method handle:
|
|
mh->release_address_field_put(_vmentry_offset, (address) me);
|
|
|
|
// There should be enough memory barriers on exit from native methods
|
|
// to ensure that the MH is fully initialized to all threads before
|
|
// Java code can publish it in global data structures.
|
|
// But just in case, we use release_address_field_put.
|
|
}
|
|
|
|
/// MemberName accessors
|
|
|
|
oop java_lang_invoke_MemberName::clazz(oop mname) {
|
|
assert(is_instance(mname), "wrong type");
|
|
return mname->obj_field(_clazz_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) {
|
|
assert(is_instance(mname), "wrong type");
|
|
mname->obj_field_put(_clazz_offset, clazz);
|
|
}
|
|
|
|
oop java_lang_invoke_MemberName::name(oop mname) {
|
|
assert(is_instance(mname), "wrong type");
|
|
return mname->obj_field(_name_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::set_name(oop mname, oop name) {
|
|
assert(is_instance(mname), "wrong type");
|
|
mname->obj_field_put(_name_offset, name);
|
|
}
|
|
|
|
oop java_lang_invoke_MemberName::type(oop mname) {
|
|
assert(is_instance(mname), "wrong type");
|
|
return mname->obj_field(_type_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::set_type(oop mname, oop type) {
|
|
assert(is_instance(mname), "wrong type");
|
|
mname->obj_field_put(_type_offset, type);
|
|
}
|
|
|
|
int java_lang_invoke_MemberName::flags(oop mname) {
|
|
assert(is_instance(mname), "wrong type");
|
|
return mname->int_field(_flags_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::set_flags(oop mname, int flags) {
|
|
assert(is_instance(mname), "wrong type");
|
|
mname->int_field_put(_flags_offset, flags);
|
|
}
|
|
|
|
oop java_lang_invoke_MemberName::vmtarget(oop mname) {
|
|
assert(is_instance(mname), "wrong type");
|
|
return mname->obj_field(_vmtarget_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) {
|
|
assert(is_instance(mname), "wrong type");
|
|
mname->obj_field_put(_vmtarget_offset, ref);
|
|
}
|
|
|
|
int java_lang_invoke_MemberName::vmindex(oop mname) {
|
|
assert(is_instance(mname), "wrong type");
|
|
return mname->int_field(_vmindex_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) {
|
|
assert(is_instance(mname), "wrong type");
|
|
mname->int_field_put(_vmindex_offset, index);
|
|
}
|
|
|
|
oop java_lang_invoke_MethodHandle::vmtarget(oop mh) {
|
|
assert(is_instance(mh), "MH only");
|
|
return mh->obj_field(_vmtarget_offset);
|
|
}
|
|
|
|
void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) {
|
|
assert(is_instance(mh), "MH only");
|
|
mh->obj_field_put(_vmtarget_offset, ref);
|
|
}
|
|
|
|
int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) {
|
|
assert(is_instance(mh), "DMH only");
|
|
return mh->int_field(_vmindex_offset);
|
|
}
|
|
|
|
void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) {
|
|
assert(is_instance(mh), "DMH only");
|
|
mh->int_field_put(_vmindex_offset, index);
|
|
}
|
|
|
|
int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) {
|
|
assert(is_instance(mh), "BMH only");
|
|
return mh->int_field(_vmargslot_offset);
|
|
}
|
|
|
|
oop java_lang_invoke_BoundMethodHandle::argument(oop mh) {
|
|
assert(is_instance(mh), "BMH only");
|
|
return mh->obj_field(_argument_offset);
|
|
}
|
|
|
|
int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) {
|
|
assert(is_instance(mh), "AMH only");
|
|
return mh->int_field(_conversion_offset);
|
|
}
|
|
|
|
void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) {
|
|
assert(is_instance(mh), "AMH only");
|
|
mh->int_field_put(_conversion_offset, conv);
|
|
}
|
|
|
|
|
|
// Support for java_lang_invoke_MethodType
|
|
|
|
int java_lang_invoke_MethodType::_rtype_offset;
|
|
int java_lang_invoke_MethodType::_ptypes_offset;
|
|
int java_lang_invoke_MethodType::_form_offset;
|
|
|
|
void java_lang_invoke_MethodType::compute_offsets() {
|
|
klassOop k = SystemDictionary::MethodType_klass();
|
|
if (k != NULL) {
|
|
compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature());
|
|
compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature());
|
|
compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature());
|
|
}
|
|
}
|
|
|
|
void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) {
|
|
st->print("(");
|
|
objArrayOop pts = ptypes(mt);
|
|
for (int i = 0, limit = pts->length(); i < limit; i++) {
|
|
java_lang_Class::print_signature(pts->obj_at(i), st);
|
|
}
|
|
st->print(")");
|
|
java_lang_Class::print_signature(rtype(mt), st);
|
|
}
|
|
|
|
Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) {
|
|
ResourceMark rm;
|
|
stringStream buffer(128);
|
|
print_signature(mt, &buffer);
|
|
const char* sigstr = buffer.base();
|
|
int siglen = (int) buffer.size();
|
|
Symbol *name;
|
|
if (!intern_if_not_found) {
|
|
name = SymbolTable::probe(sigstr, siglen);
|
|
} else {
|
|
name = SymbolTable::new_symbol(sigstr, siglen, THREAD);
|
|
}
|
|
return name;
|
|
}
|
|
|
|
oop java_lang_invoke_MethodType::rtype(oop mt) {
|
|
assert(is_instance(mt), "must be a MethodType");
|
|
return mt->obj_field(_rtype_offset);
|
|
}
|
|
|
|
objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) {
|
|
assert(is_instance(mt), "must be a MethodType");
|
|
return (objArrayOop) mt->obj_field(_ptypes_offset);
|
|
}
|
|
|
|
oop java_lang_invoke_MethodType::form(oop mt) {
|
|
assert(is_instance(mt), "must be a MethodType");
|
|
return mt->obj_field(_form_offset);
|
|
}
|
|
|
|
oop java_lang_invoke_MethodType::ptype(oop mt, int idx) {
|
|
return ptypes(mt)->obj_at(idx);
|
|
}
|
|
|
|
int java_lang_invoke_MethodType::ptype_count(oop mt) {
|
|
return ptypes(mt)->length();
|
|
}
|
|
|
|
|
|
|
|
// Support for java_lang_invoke_MethodTypeForm
|
|
|
|
int java_lang_invoke_MethodTypeForm::_vmslots_offset;
|
|
int java_lang_invoke_MethodTypeForm::_vmlayout_offset;
|
|
int java_lang_invoke_MethodTypeForm::_erasedType_offset;
|
|
int java_lang_invoke_MethodTypeForm::_genericInvoker_offset;
|
|
|
|
void java_lang_invoke_MethodTypeForm::compute_offsets() {
|
|
klassOop k = SystemDictionary::MethodTypeForm_klass();
|
|
if (k != NULL) {
|
|
compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true);
|
|
compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature());
|
|
compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true);
|
|
compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true);
|
|
if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value
|
|
}
|
|
}
|
|
|
|
int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) {
|
|
assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only");
|
|
assert(_vmslots_offset > 0, "");
|
|
return mtform->int_field(_vmslots_offset);
|
|
}
|
|
|
|
oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) {
|
|
assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only");
|
|
assert(_vmlayout_offset > 0, "");
|
|
return mtform->obj_field(_vmlayout_offset);
|
|
}
|
|
|
|
oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) {
|
|
assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only");
|
|
oop previous = vmlayout(mtform);
|
|
if (previous != NULL) {
|
|
return previous; // someone else beat us to it
|
|
}
|
|
HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset);
|
|
OrderAccess::storestore(); // make sure our copy is fully committed
|
|
previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous);
|
|
if (previous != NULL) {
|
|
return previous; // someone else beat us to it
|
|
}
|
|
return cookie;
|
|
}
|
|
|
|
oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) {
|
|
assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only");
|
|
return mtform->obj_field(_erasedType_offset);
|
|
}
|
|
|
|
oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) {
|
|
assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only");
|
|
return mtform->obj_field(_genericInvoker_offset);
|
|
}
|
|
|
|
|
|
// Support for java_lang_invoke_CallSite
|
|
|
|
int java_lang_invoke_CallSite::_target_offset;
|
|
|
|
void java_lang_invoke_CallSite::compute_offsets() {
|
|
if (!EnableInvokeDynamic) return;
|
|
klassOop k = SystemDictionary::CallSite_klass();
|
|
if (k != NULL) {
|
|
compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature());
|
|
}
|
|
}
|
|
|
|
oop java_lang_invoke_CallSite::target(oop site) {
|
|
return site->obj_field(_target_offset);
|
|
}
|
|
|
|
void java_lang_invoke_CallSite::set_target(oop site, oop target) {
|
|
site->obj_field_put(_target_offset, target);
|
|
}
|
|
|
|
|
|
// Support for java_security_AccessControlContext
|
|
|
|
int java_security_AccessControlContext::_context_offset = 0;
|
|
int java_security_AccessControlContext::_privilegedContext_offset = 0;
|
|
int java_security_AccessControlContext::_isPrivileged_offset = 0;
|
|
|
|
void java_security_AccessControlContext::compute_offsets() {
|
|
assert(_isPrivileged_offset == 0, "offsets should be initialized only once");
|
|
fieldDescriptor fd;
|
|
instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass());
|
|
|
|
if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) {
|
|
fatal("Invalid layout of java.security.AccessControlContext");
|
|
}
|
|
_context_offset = fd.offset();
|
|
|
|
if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) {
|
|
fatal("Invalid layout of java.security.AccessControlContext");
|
|
}
|
|
_privilegedContext_offset = fd.offset();
|
|
|
|
if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) {
|
|
fatal("Invalid layout of java.security.AccessControlContext");
|
|
}
|
|
_isPrivileged_offset = fd.offset();
|
|
}
|
|
|
|
|
|
oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) {
|
|
assert(_isPrivileged_offset != 0, "offsets should have been initialized");
|
|
// Ensure klass is initialized
|
|
instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0);
|
|
// Allocate result
|
|
oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0);
|
|
// Fill in values
|
|
result->obj_field_put(_context_offset, context());
|
|
result->obj_field_put(_privilegedContext_offset, privileged_context());
|
|
result->bool_field_put(_isPrivileged_offset, isPrivileged);
|
|
return result;
|
|
}
|
|
|
|
|
|
// Support for java_lang_ClassLoader
|
|
|
|
oop java_lang_ClassLoader::parent(oop loader) {
|
|
assert(loader->is_oop(), "loader must be oop");
|
|
return loader->obj_field(parent_offset);
|
|
}
|
|
|
|
|
|
bool java_lang_ClassLoader::is_trusted_loader(oop loader) {
|
|
// Fix for 4474172; see evaluation for more details
|
|
loader = non_reflection_class_loader(loader);
|
|
|
|
oop cl = SystemDictionary::java_system_loader();
|
|
while(cl != NULL) {
|
|
if (cl == loader) return true;
|
|
cl = parent(cl);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) {
|
|
if (loader != NULL) {
|
|
// See whether this is one of the class loaders associated with
|
|
// the generated bytecodes for reflection, and if so, "magically"
|
|
// delegate to its parent to prevent class loading from occurring
|
|
// in places where applications using reflection didn't expect it.
|
|
klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass();
|
|
// This might be null in non-1.4 JDKs
|
|
if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) {
|
|
return parent(loader);
|
|
}
|
|
}
|
|
return loader;
|
|
}
|
|
|
|
|
|
// Support for java_lang_System
|
|
int java_lang_System::in_offset_in_bytes() {
|
|
return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset);
|
|
}
|
|
|
|
|
|
int java_lang_System::out_offset_in_bytes() {
|
|
return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset);
|
|
}
|
|
|
|
|
|
int java_lang_System::err_offset_in_bytes() {
|
|
return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset);
|
|
}
|
|
|
|
|
|
|
|
int java_lang_String::value_offset;
|
|
int java_lang_String::offset_offset;
|
|
int java_lang_String::count_offset;
|
|
int java_lang_String::hash_offset;
|
|
int java_lang_Class::klass_offset;
|
|
int java_lang_Class::array_klass_offset;
|
|
int java_lang_Class::resolved_constructor_offset;
|
|
int java_lang_Class::number_of_fake_oop_fields;
|
|
int java_lang_Class::oop_size_offset;
|
|
int java_lang_Class::static_oop_field_count_offset;
|
|
int java_lang_Throwable::backtrace_offset;
|
|
int java_lang_Throwable::detailMessage_offset;
|
|
int java_lang_Throwable::cause_offset;
|
|
int java_lang_Throwable::stackTrace_offset;
|
|
int java_lang_reflect_AccessibleObject::override_offset;
|
|
int java_lang_reflect_Method::clazz_offset;
|
|
int java_lang_reflect_Method::name_offset;
|
|
int java_lang_reflect_Method::returnType_offset;
|
|
int java_lang_reflect_Method::parameterTypes_offset;
|
|
int java_lang_reflect_Method::exceptionTypes_offset;
|
|
int java_lang_reflect_Method::slot_offset;
|
|
int java_lang_reflect_Method::modifiers_offset;
|
|
int java_lang_reflect_Method::signature_offset;
|
|
int java_lang_reflect_Method::annotations_offset;
|
|
int java_lang_reflect_Method::parameter_annotations_offset;
|
|
int java_lang_reflect_Method::annotation_default_offset;
|
|
int java_lang_reflect_Constructor::clazz_offset;
|
|
int java_lang_reflect_Constructor::parameterTypes_offset;
|
|
int java_lang_reflect_Constructor::exceptionTypes_offset;
|
|
int java_lang_reflect_Constructor::slot_offset;
|
|
int java_lang_reflect_Constructor::modifiers_offset;
|
|
int java_lang_reflect_Constructor::signature_offset;
|
|
int java_lang_reflect_Constructor::annotations_offset;
|
|
int java_lang_reflect_Constructor::parameter_annotations_offset;
|
|
int java_lang_reflect_Field::clazz_offset;
|
|
int java_lang_reflect_Field::name_offset;
|
|
int java_lang_reflect_Field::type_offset;
|
|
int java_lang_reflect_Field::slot_offset;
|
|
int java_lang_reflect_Field::modifiers_offset;
|
|
int java_lang_reflect_Field::signature_offset;
|
|
int java_lang_reflect_Field::annotations_offset;
|
|
int java_lang_boxing_object::value_offset;
|
|
int java_lang_boxing_object::long_value_offset;
|
|
int java_lang_ref_Reference::referent_offset;
|
|
int java_lang_ref_Reference::queue_offset;
|
|
int java_lang_ref_Reference::next_offset;
|
|
int java_lang_ref_Reference::discovered_offset;
|
|
int java_lang_ref_Reference::static_lock_offset;
|
|
int java_lang_ref_Reference::static_pending_offset;
|
|
int java_lang_ref_Reference::number_of_fake_oop_fields;
|
|
int java_lang_ref_SoftReference::timestamp_offset;
|
|
int java_lang_ref_SoftReference::static_clock_offset;
|
|
int java_lang_ClassLoader::parent_offset;
|
|
int java_lang_System::static_in_offset;
|
|
int java_lang_System::static_out_offset;
|
|
int java_lang_System::static_err_offset;
|
|
int java_lang_StackTraceElement::declaringClass_offset;
|
|
int java_lang_StackTraceElement::methodName_offset;
|
|
int java_lang_StackTraceElement::fileName_offset;
|
|
int java_lang_StackTraceElement::lineNumber_offset;
|
|
int java_lang_AssertionStatusDirectives::classes_offset;
|
|
int java_lang_AssertionStatusDirectives::classEnabled_offset;
|
|
int java_lang_AssertionStatusDirectives::packages_offset;
|
|
int java_lang_AssertionStatusDirectives::packageEnabled_offset;
|
|
int java_lang_AssertionStatusDirectives::deflt_offset;
|
|
int java_nio_Buffer::_limit_offset;
|
|
int sun_misc_AtomicLongCSImpl::_value_offset;
|
|
int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0;
|
|
int sun_reflect_ConstantPool::_cp_oop_offset;
|
|
int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset;
|
|
|
|
|
|
// Support for java_lang_StackTraceElement
|
|
|
|
void java_lang_StackTraceElement::set_fileName(oop element, oop value) {
|
|
element->obj_field_put(fileName_offset, value);
|
|
}
|
|
|
|
void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) {
|
|
element->obj_field_put(declaringClass_offset, value);
|
|
}
|
|
|
|
void java_lang_StackTraceElement::set_methodName(oop element, oop value) {
|
|
element->obj_field_put(methodName_offset, value);
|
|
}
|
|
|
|
void java_lang_StackTraceElement::set_lineNumber(oop element, int value) {
|
|
element->int_field_put(lineNumber_offset, value);
|
|
}
|
|
|
|
|
|
// Support for java Assertions - java_lang_AssertionStatusDirectives.
|
|
|
|
void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) {
|
|
o->obj_field_put(classes_offset, val);
|
|
}
|
|
|
|
void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) {
|
|
o->obj_field_put(classEnabled_offset, val);
|
|
}
|
|
|
|
void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) {
|
|
o->obj_field_put(packages_offset, val);
|
|
}
|
|
|
|
void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) {
|
|
o->obj_field_put(packageEnabled_offset, val);
|
|
}
|
|
|
|
void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) {
|
|
o->bool_field_put(deflt_offset, val);
|
|
}
|
|
|
|
|
|
// Support for intrinsification of java.nio.Buffer.checkIndex
|
|
int java_nio_Buffer::limit_offset() {
|
|
return _limit_offset;
|
|
}
|
|
|
|
|
|
void java_nio_Buffer::compute_offsets() {
|
|
klassOop k = SystemDictionary::java_nio_Buffer_klass();
|
|
assert(k != NULL, "must be loaded in 1.4+");
|
|
compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature());
|
|
}
|
|
|
|
// Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate
|
|
int sun_misc_AtomicLongCSImpl::value_offset() {
|
|
assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this");
|
|
return _value_offset;
|
|
}
|
|
|
|
|
|
void sun_misc_AtomicLongCSImpl::compute_offsets() {
|
|
klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass();
|
|
// If this class is not present, its value field offset won't be referenced.
|
|
if (k != NULL) {
|
|
compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature());
|
|
}
|
|
}
|
|
|
|
void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) {
|
|
if (_owner_offset != 0) return;
|
|
|
|
assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later");
|
|
SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK);
|
|
klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass();
|
|
compute_offset(_owner_offset, k,
|
|
vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature());
|
|
}
|
|
|
|
oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) {
|
|
assert(_owner_offset != 0, "Must be initialized");
|
|
return obj->obj_field(_owner_offset);
|
|
}
|
|
|
|
// Compute hard-coded offsets
|
|
// Invoked before SystemDictionary::initialize, so pre-loaded classes
|
|
// are not available to determine the offset_of_static_fields.
|
|
void JavaClasses::compute_hard_coded_offsets() {
|
|
const int x = heapOopSize;
|
|
const int header = instanceOopDesc::base_offset_in_bytes();
|
|
|
|
// Do the String Class
|
|
java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header;
|
|
java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header;
|
|
java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint);
|
|
java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint);
|
|
|
|
{
|
|
// Do the Class Class
|
|
int offset = header;
|
|
java_lang_Class::oop_size_offset = header;
|
|
offset += BytesPerInt;
|
|
java_lang_Class::static_oop_field_count_offset = offset;
|
|
offset = align_size_up(offset + BytesPerInt, x);
|
|
java_lang_Class::klass_offset = offset;
|
|
offset += x;
|
|
java_lang_Class::array_klass_offset = offset;
|
|
offset += x;
|
|
java_lang_Class::resolved_constructor_offset = offset;
|
|
}
|
|
|
|
// This is NOT an offset
|
|
java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields;
|
|
|
|
// Throwable Class
|
|
java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header;
|
|
java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header;
|
|
java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header;
|
|
java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header;
|
|
|
|
// java_lang_boxing_object
|
|
java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header;
|
|
java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong);
|
|
|
|
// java_lang_ref_Reference:
|
|
java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header;
|
|
java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header;
|
|
java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header;
|
|
java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header;
|
|
java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x;
|
|
java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x;
|
|
// Artificial fields for java_lang_ref_Reference
|
|
// The first field is for the discovered field added in 1.4
|
|
java_lang_ref_Reference::number_of_fake_oop_fields = 1;
|
|
|
|
// java_lang_ref_SoftReference Class
|
|
java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong);
|
|
// Don't multiply static fields because they are always in wordSize units
|
|
java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x;
|
|
|
|
// java_lang_ClassLoader
|
|
java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header;
|
|
|
|
// java_lang_System
|
|
java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x;
|
|
java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x;
|
|
java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x;
|
|
|
|
// java_lang_StackTraceElement
|
|
java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header;
|
|
java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header;
|
|
java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header;
|
|
java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header;
|
|
java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header;
|
|
java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header;
|
|
java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header;
|
|
java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header;
|
|
java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header;
|
|
|
|
}
|
|
|
|
|
|
// Compute non-hard-coded field offsets of all the classes in this file
|
|
void JavaClasses::compute_offsets() {
|
|
|
|
java_lang_Class::compute_offsets();
|
|
java_lang_Thread::compute_offsets();
|
|
java_lang_ThreadGroup::compute_offsets();
|
|
if (EnableInvokeDynamic) {
|
|
java_lang_invoke_MethodHandle::compute_offsets();
|
|
java_lang_invoke_MemberName::compute_offsets();
|
|
java_lang_invoke_DirectMethodHandle::compute_offsets();
|
|
java_lang_invoke_BoundMethodHandle::compute_offsets();
|
|
java_lang_invoke_AdapterMethodHandle::compute_offsets();
|
|
java_lang_invoke_MethodType::compute_offsets();
|
|
java_lang_invoke_MethodTypeForm::compute_offsets();
|
|
java_lang_invoke_CallSite::compute_offsets();
|
|
}
|
|
java_security_AccessControlContext::compute_offsets();
|
|
// Initialize reflection classes. The layouts of these classes
|
|
// changed with the new reflection implementation in JDK 1.4, and
|
|
// since the Universe doesn't know what JDK version it is until this
|
|
// point we defer computation of these offsets until now.
|
|
java_lang_reflect_AccessibleObject::compute_offsets();
|
|
java_lang_reflect_Method::compute_offsets();
|
|
java_lang_reflect_Constructor::compute_offsets();
|
|
java_lang_reflect_Field::compute_offsets();
|
|
if (JDK_Version::is_gte_jdk14x_version()) {
|
|
java_nio_Buffer::compute_offsets();
|
|
}
|
|
if (JDK_Version::is_gte_jdk15x_version()) {
|
|
sun_reflect_ConstantPool::compute_offsets();
|
|
sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets();
|
|
}
|
|
sun_misc_AtomicLongCSImpl::compute_offsets();
|
|
|
|
// generated interpreter code wants to know about the offsets we just computed:
|
|
AbstractAssembler::update_delayed_values();
|
|
}
|
|
|
|
#ifndef PRODUCT
|
|
|
|
// These functions exist to assert the validity of hard-coded field offsets to guard
|
|
// against changes in the class files
|
|
|
|
bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
|
|
EXCEPTION_MARK;
|
|
fieldDescriptor fd;
|
|
TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
|
|
klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
instanceKlassHandle h_klass (THREAD, k);
|
|
TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
|
|
TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
|
|
if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
|
|
tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name);
|
|
return false;
|
|
}
|
|
if (fd.is_static()) {
|
|
tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name);
|
|
return false;
|
|
}
|
|
if (fd.offset() == hardcoded_offset ) {
|
|
return true;
|
|
} else {
|
|
tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.",
|
|
klass_name, field_name, hardcoded_offset, fd.offset());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
|
|
EXCEPTION_MARK;
|
|
fieldDescriptor fd;
|
|
TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
|
|
klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
instanceKlassHandle h_klass (THREAD, k);
|
|
TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
|
|
TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
|
|
if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
|
|
tty->print_cr("Static field %s.%s not found", klass_name, field_name);
|
|
return false;
|
|
}
|
|
if (!fd.is_static()) {
|
|
tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name);
|
|
return false;
|
|
}
|
|
if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) {
|
|
return true;
|
|
} else {
|
|
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() - instanceMirrorKlass::offset_of_static_fields());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) {
|
|
EXCEPTION_MARK;
|
|
fieldDescriptor fd;
|
|
TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH);
|
|
klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
instanceKlassHandle h_klass (THREAD, k);
|
|
TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH);
|
|
TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH);
|
|
if (!h_klass->find_local_field(f_name, f_sig, &fd)) {
|
|
tty->print_cr("Static field %s.%s not found", klass_name, field_name);
|
|
return false;
|
|
}
|
|
if (!fd.is_static() || !fd.has_initial_value()) {
|
|
tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name);
|
|
return false;
|
|
}
|
|
if (!fd.initial_value_tag().is_int()) {
|
|
tty->print_cr("Static field %s.%s is not an int", klass_name, field_name);
|
|
return false;
|
|
}
|
|
jint field_value = fd.int_initial_value();
|
|
if (field_value == hardcoded_constant) {
|
|
return true;
|
|
} else {
|
|
tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
// Check the hard-coded field offsets of all the classes in this file
|
|
|
|
void JavaClasses::check_offsets() {
|
|
bool valid = true;
|
|
|
|
#define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig)
|
|
|
|
#define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig)
|
|
|
|
#define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig)
|
|
|
|
#define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig)
|
|
|
|
// java.lang.String
|
|
|
|
CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C");
|
|
CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
|
|
CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
|
|
CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
|
|
|
|
// java.lang.Class
|
|
|
|
// Fake fields
|
|
// CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked
|
|
// CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked
|
|
// CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked
|
|
|
|
// java.lang.Throwable
|
|
|
|
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;");
|
|
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;");
|
|
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;");
|
|
CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;");
|
|
|
|
// Boxed primitive objects (java_lang_boxing_object)
|
|
|
|
CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z");
|
|
CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C");
|
|
CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F");
|
|
CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D");
|
|
CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B");
|
|
CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S");
|
|
CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I");
|
|
CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J");
|
|
|
|
// java.lang.ClassLoader
|
|
|
|
CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;");
|
|
|
|
// java.lang.System
|
|
|
|
CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;");
|
|
CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;");
|
|
CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;");
|
|
|
|
// java.lang.StackTraceElement
|
|
|
|
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;");
|
|
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;");
|
|
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;");
|
|
CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I");
|
|
|
|
// java.lang.ref.Reference
|
|
|
|
CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;");
|
|
CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;");
|
|
CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;");
|
|
// Fake field
|
|
//CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;");
|
|
CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;");
|
|
CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;");
|
|
|
|
// java.lang.ref.SoftReference
|
|
|
|
CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J");
|
|
CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J");
|
|
|
|
// java.lang.AssertionStatusDirectives
|
|
//
|
|
// The CheckAssertionStatusDirectives boolean can be removed from here and
|
|
// globals.hpp after the AssertionStatusDirectives class has been integrated
|
|
// into merlin "for some time." Without it, the vm will fail with early
|
|
// merlin builds.
|
|
|
|
if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) {
|
|
const char* nm = "java/lang/AssertionStatusDirectives";
|
|
const char* sig = "[Ljava/lang/String;";
|
|
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig);
|
|
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z");
|
|
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig);
|
|
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z");
|
|
CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z");
|
|
}
|
|
|
|
if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed");
|
|
}
|
|
|
|
#endif // PRODUCT
|
|
|
|
void javaClasses_init() {
|
|
JavaClasses::compute_offsets();
|
|
JavaClasses::check_offsets();
|
|
FilteredFieldsMap::initialize(); // must be done after computing offsets.
|
|
}
|