duke@435: /* coleenp@4466: * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. duke@435: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@435: * duke@435: * This code is free software; you can redistribute it and/or modify it duke@435: * under the terms of the GNU General Public License version 2 only, as duke@435: * published by the Free Software Foundation. duke@435: * duke@435: * This code is distributed in the hope that it will be useful, but WITHOUT duke@435: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@435: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@435: * version 2 for more details (a copy is included in the LICENSE file that duke@435: * accompanied this code). duke@435: * duke@435: * You should have received a copy of the GNU General Public License version duke@435: * 2 along with this work; if not, write to the Free Software Foundation, duke@435: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@435: * trims@1907: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA trims@1907: * or visit www.oracle.com if you need additional information or have any trims@1907: * questions. duke@435: * duke@435: */ duke@435: stefank@2314: #include "precompiled.hpp" coleenp@3865: #include "classfile/altHashing.hpp" stefank@2314: #include "classfile/javaClasses.hpp" stefank@2314: #include "classfile/symbolTable.hpp" stefank@2314: #include "classfile/vmSymbols.hpp" stefank@2314: #include "code/debugInfo.hpp" stefank@2314: #include "code/pcDesc.hpp" twisti@3100: #include "compiler/compilerOracle.hpp" stefank@2314: #include "interpreter/interpreter.hpp" stefank@2314: #include "memory/oopFactory.hpp" stefank@2314: #include "memory/resourceArea.hpp" stefank@2314: #include "memory/universe.inline.hpp" never@3137: #include "oops/fieldStreams.hpp" stefank@2314: #include "oops/instanceKlass.hpp" never@2658: #include "oops/instanceMirrorKlass.hpp" stefank@2314: #include "oops/klass.hpp" coleenp@4037: #include "oops/method.hpp" coleenp@2497: #include "oops/symbol.hpp" stefank@2314: #include "oops/typeArrayOop.hpp" stefank@2314: #include "runtime/fieldDescriptor.hpp" stefank@2314: #include "runtime/handles.inline.hpp" stefank@2314: #include "runtime/interfaceSupport.hpp" stefank@2314: #include "runtime/java.hpp" stefank@2314: #include "runtime/javaCalls.hpp" stefank@2314: #include "runtime/safepoint.hpp" stefank@4299: #include "runtime/thread.inline.hpp" stefank@2314: #include "runtime/vframe.hpp" stefank@2314: #include "utilities/preserveException.hpp" duke@435: never@3137: #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ never@3137: klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); never@3137: never@3137: #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ never@3137: { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, never@3137: never@3137: InjectedField JavaClasses::_injected_fields[] = { never@3137: ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) never@3137: }; never@3137: never@3137: int JavaClasses::compute_injected_offset(InjectedFieldID id) { never@3137: return _injected_fields[id].compute_offset(); never@3137: } never@3137: never@3137: never@3137: InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { never@3137: *field_count = 0; never@3137: never@3137: vmSymbols::SID sid = vmSymbols::find_sid(class_name); never@3137: if (sid == vmSymbols::NO_SID) { never@3137: // Only well known classes can inject fields never@3137: return NULL; never@3137: } never@3137: never@3137: int count = 0; never@3137: int start = -1; never@3137: never@3137: #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ never@3137: if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ never@3137: count++; \ never@3137: if (start == -1) start = klass##_##name##_enum; \ never@3137: } never@3137: ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); never@3137: #undef LOOKUP_INJECTED_FIELD never@3137: never@3137: if (start != -1) { never@3137: *field_count = count; never@3137: return _injected_fields + start; never@3137: } never@3137: return NULL; never@3137: } never@3137: never@3137: coleenp@4037: static bool find_field(InstanceKlass* ik, coleenp@2497: Symbol* name_symbol, Symbol* signature_symbol, jrose@1145: fieldDescriptor* fd, jrose@1145: bool allow_super = false) { jrose@1145: if (allow_super) jrose@1145: return ik->find_field(name_symbol, signature_symbol, fd) != NULL; jrose@1145: else jrose@1145: return ik->find_local_field(name_symbol, signature_symbol, fd); jrose@1145: } jrose@1145: jrose@567: // Helpful routine for computing field offsets at run time rather than hardcoding them jrose@567: static void jrose@567: compute_offset(int &dest_offset, coleenp@4037: Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, jrose@1145: bool allow_super = false) { jrose@567: fieldDescriptor fd; coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(klass_oop); jrose@1145: if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { jrose@567: ResourceMark rm; jrose@567: tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); twisti@3969: #ifndef PRODUCT twisti@3969: klass_oop->print(); twisti@3969: tty->print_cr("all fields:"); coleenp@4037: for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { twisti@3969: tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); twisti@3969: } twisti@3969: #endif //PRODUCT jrose@567: fatal("Invalid layout of preloaded class"); jrose@567: } jrose@567: dest_offset = fd.offset(); duke@435: } duke@435: duke@435: // Same as above but for "optional" offsets that might not be present in certain JDK versions jrose@567: static void jrose@567: compute_optional_offset(int& dest_offset, coleenp@4037: Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, jrose@1145: bool allow_super = false) { jrose@567: fieldDescriptor fd; coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(klass_oop); jrose@1145: if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { jrose@567: dest_offset = fd.offset(); jrose@567: } duke@435: } duke@435: jrose@1145: kvn@3760: int java_lang_String::value_offset = 0; kvn@3760: int java_lang_String::offset_offset = 0; kvn@3760: int java_lang_String::count_offset = 0; kvn@3760: int java_lang_String::hash_offset = 0; kvn@3760: kvn@3760: bool java_lang_String::initialized = false; kvn@3760: kvn@3760: void java_lang_String::compute_offsets() { kvn@3760: assert(!initialized, "offsets should be initialized only once"); kvn@3760: coleenp@4037: Klass* k = SystemDictionary::String_klass(); kvn@3760: compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); kvn@3760: compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); kvn@3760: compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); kvn@3760: compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); kvn@3760: kvn@3760: initialized = true; kvn@3760: } kvn@3760: coleenp@4037: Handle java_lang_String::basic_create(int length, TRAPS) { kvn@3760: assert(initialized, "Must be initialized"); duke@435: // Create the String object first, so there's a chance that the String duke@435: // and the char array it points to end up in the same cache line. duke@435: oop obj; coleenp@4037: obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); duke@435: duke@435: // Create the char array. The String object must be handlized here duke@435: // because GC can happen as a result of the allocation attempt. duke@435: Handle h_obj(THREAD, obj); duke@435: typeArrayOop buffer; duke@435: buffer = oopFactory::new_charArray(length, CHECK_NH); duke@435: duke@435: // Point the String at the char array duke@435: obj = h_obj(); duke@435: set_value(obj, buffer); duke@435: // No need to zero the offset, allocation zero'ed the entire String object duke@435: assert(offset(obj) == 0, "initial String offset should be zero"); duke@435: //set_offset(obj, 0); duke@435: set_count(obj, length); duke@435: duke@435: return h_obj; duke@435: } duke@435: coleenp@4037: Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { coleenp@4037: Handle h_obj = basic_create(length, CHECK_NH); duke@435: typeArrayOop buffer = value(h_obj()); duke@435: for (int index = 0; index < length; index++) { duke@435: buffer->char_at_put(index, unicode[index]); duke@435: } duke@435: return h_obj; duke@435: } duke@435: duke@435: oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { coleenp@4037: Handle h_obj = create_from_unicode(unicode, length, CHECK_0); duke@435: return h_obj(); duke@435: } duke@435: duke@435: Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { duke@435: if (utf8_str == NULL) { duke@435: return Handle(); duke@435: } duke@435: int length = UTF8::unicode_length(utf8_str); coleenp@4037: Handle h_obj = basic_create(length, CHECK_NH); duke@435: if (length > 0) { duke@435: UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); duke@435: } duke@435: return h_obj; duke@435: } duke@435: duke@435: oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { duke@435: Handle h_obj = create_from_str(utf8_str, CHECK_0); duke@435: return h_obj(); duke@435: } duke@435: coleenp@2497: Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { duke@435: int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); coleenp@4037: Handle h_obj = basic_create(length, CHECK_NH); duke@435: if (length > 0) { duke@435: UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); duke@435: } duke@435: return h_obj; duke@435: } duke@435: duke@435: // Converts a C string to a Java String based on current encoding duke@435: Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { duke@435: assert(str != NULL, "bad arguments"); duke@435: duke@435: typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); duke@435: static to_java_string_fn_t _to_java_string_fn = NULL; duke@435: duke@435: if (_to_java_string_fn == NULL) { duke@435: void *lib_handle = os::native_java_library(); ikrylov@2322: _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); duke@435: if (_to_java_string_fn == NULL) { duke@435: fatal("NewStringPlatform missing"); duke@435: } duke@435: } duke@435: duke@435: jstring js = NULL; duke@435: { JavaThread* thread = (JavaThread*)THREAD; duke@435: assert(thread->is_Java_thread(), "must be java thread"); coleenp@457: HandleMark hm(thread); duke@435: ThreadToNativeFromVM ttn(thread); duke@435: js = (_to_java_string_fn)(thread->jni_environment(), str); duke@435: } duke@435: return Handle(THREAD, JNIHandles::resolve(js)); duke@435: } duke@435: coleenp@457: // Converts a Java String to a native C string that can be used for coleenp@457: // native OS calls. coleenp@457: char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { coleenp@457: coleenp@457: typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); coleenp@457: static to_platform_string_fn_t _to_platform_string_fn = NULL; coleenp@457: coleenp@457: if (_to_platform_string_fn == NULL) { coleenp@457: void *lib_handle = os::native_java_library(); ikrylov@2322: _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); coleenp@457: if (_to_platform_string_fn == NULL) { coleenp@457: fatal("GetStringPlatformChars missing"); coleenp@457: } coleenp@457: } coleenp@457: coleenp@457: char *native_platform_string; coleenp@457: { JavaThread* thread = (JavaThread*)THREAD; coleenp@457: assert(thread->is_Java_thread(), "must be java thread"); coleenp@457: JNIEnv *env = thread->jni_environment(); coleenp@457: jstring js = (jstring) JNIHandles::make_local(env, java_string()); coleenp@457: bool is_copy; coleenp@457: HandleMark hm(thread); coleenp@457: ThreadToNativeFromVM ttn(thread); coleenp@457: native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); coleenp@457: assert(is_copy == JNI_TRUE, "is_copy value changed"); coleenp@457: JNIHandles::destroy_local(js); coleenp@457: } coleenp@457: return native_platform_string; coleenp@457: } coleenp@457: duke@435: Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { duke@435: oop obj = java_string(); duke@435: // Typical usage is to convert all '/' to '.' in string. duke@435: typeArrayOop value = java_lang_String::value(obj); duke@435: int offset = java_lang_String::offset(obj); duke@435: int length = java_lang_String::length(obj); duke@435: duke@435: // First check if any from_char exist duke@435: int index; // Declared outside, used later duke@435: for (index = 0; index < length; index++) { duke@435: if (value->char_at(index + offset) == from_char) { duke@435: break; duke@435: } duke@435: } duke@435: if (index == length) { duke@435: // No from_char, so do not copy. duke@435: return java_string; duke@435: } duke@435: duke@435: // Create new UNICODE buffer. Must handlize value because GC duke@435: // may happen during String and char array creation. duke@435: typeArrayHandle h_value(THREAD, value); coleenp@4037: Handle string = basic_create(length, CHECK_NH); duke@435: duke@435: typeArrayOop from_buffer = h_value(); duke@435: typeArrayOop to_buffer = java_lang_String::value(string()); duke@435: duke@435: // Copy contents duke@435: for (index = 0; index < length; index++) { duke@435: jchar c = from_buffer->char_at(index + offset); duke@435: if (c == from_char) { duke@435: c = to_char; duke@435: } duke@435: to_buffer->char_at_put(index, c); duke@435: } duke@435: return string; duke@435: } duke@435: hseigel@4987: jchar* java_lang_String::as_unicode_string(oop java_string, int& length, TRAPS) { duke@435: typeArrayOop value = java_lang_String::value(java_string); duke@435: int offset = java_lang_String::offset(java_string); duke@435: length = java_lang_String::length(java_string); duke@435: hseigel@4987: jchar* result = NEW_RESOURCE_ARRAY_RETURN_NULL(jchar, length); hseigel@4987: if (result != NULL) { hseigel@4987: for (int index = 0; index < length; index++) { hseigel@4987: result[index] = value->char_at(index + offset); hseigel@4987: } hseigel@4987: } else { hseigel@4987: THROW_MSG_0(vmSymbols::java_lang_OutOfMemoryError(), "could not allocate Unicode string"); duke@435: } duke@435: return result; duke@435: } duke@435: brutisso@4335: unsigned int java_lang_String::hash_code(oop java_string) { coleenp@3865: int length = java_lang_String::length(java_string); brutisso@4335: // Zero length string will hash to zero with String.hashCode() function. coleenp@3865: if (length == 0) return 0; coleenp@3865: never@2700: typeArrayOop value = java_lang_String::value(java_string); never@2700: int offset = java_lang_String::offset(java_string); brutisso@4335: return java_lang_String::hash_code(value->char_at_addr(offset), length); coleenp@3865: } coleenp@3865: minqi@4267: char* java_lang_String::as_quoted_ascii(oop java_string) { minqi@4267: typeArrayOop value = java_lang_String::value(java_string); minqi@4267: int offset = java_lang_String::offset(java_string); minqi@4267: int length = java_lang_String::length(java_string); minqi@4267: minqi@4267: jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); minqi@4267: if (base == NULL) return NULL; minqi@4267: minqi@4267: int result_length = UNICODE::quoted_ascii_length(base, length) + 1; minqi@4267: char* result = NEW_RESOURCE_ARRAY(char, result_length); minqi@4267: UNICODE::as_quoted_ascii(base, length, result, result_length); minqi@4267: assert(result_length >= length + 1, "must not be shorter"); minqi@4267: assert(result_length == (int)strlen(result) + 1, "must match"); minqi@4267: return result; minqi@4267: } minqi@4267: coleenp@3865: unsigned int java_lang_String::hash_string(oop java_string) { never@2700: int length = java_lang_String::length(java_string); coleenp@3865: // Zero length string doesn't hash necessarily hash to zero. coleenp@3865: if (length == 0) { coleenp@3865: return StringTable::hash_string(NULL, 0); coleenp@3865: } coleenp@3865: coleenp@3865: typeArrayOop value = java_lang_String::value(java_string); coleenp@3865: int offset = java_lang_String::offset(java_string); coleenp@3865: return StringTable::hash_string(value->char_at_addr(offset), length); never@2700: } never@2700: coleenp@2497: Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { duke@435: oop obj = java_string(); duke@435: typeArrayOop value = java_lang_String::value(obj); duke@435: int offset = java_lang_String::offset(obj); duke@435: int length = java_lang_String::length(obj); twisti@1384: jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); coleenp@2497: Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); coleenp@2497: return sym; duke@435: } duke@435: coleenp@2497: Symbol* java_lang_String::as_symbol_or_null(oop java_string) { jrose@1100: typeArrayOop value = java_lang_String::value(java_string); jrose@1100: int offset = java_lang_String::offset(java_string); jrose@1100: int length = java_lang_String::length(java_string); twisti@1384: jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); jrose@1100: return SymbolTable::probe_unicode(base, length); jrose@1100: } jrose@1100: jrose@1100: duke@435: int java_lang_String::utf8_length(oop java_string) { duke@435: typeArrayOop value = java_lang_String::value(java_string); duke@435: int offset = java_lang_String::offset(java_string); duke@435: int length = java_lang_String::length(java_string); duke@435: jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); duke@435: return UNICODE::utf8_length(position, length); duke@435: } duke@435: duke@435: char* java_lang_String::as_utf8_string(oop java_string) { duke@435: typeArrayOop value = java_lang_String::value(java_string); duke@435: int offset = java_lang_String::offset(java_string); duke@435: int length = java_lang_String::length(java_string); duke@435: jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); duke@435: return UNICODE::as_utf8(position, length); duke@435: } duke@435: sla@2331: char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { sla@2331: typeArrayOop value = java_lang_String::value(java_string); sla@2331: int offset = java_lang_String::offset(java_string); sla@2331: int length = java_lang_String::length(java_string); sla@2331: jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); sla@2331: return UNICODE::as_utf8(position, length, buf, buflen); sla@2331: } sla@2331: duke@435: char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { duke@435: typeArrayOop value = java_lang_String::value(java_string); duke@435: int offset = java_lang_String::offset(java_string); duke@435: int length = java_lang_String::length(java_string); duke@435: assert(start + len <= length, "just checking"); duke@435: jchar* position = value->char_at_addr(offset + start); duke@435: return UNICODE::as_utf8(position, len); duke@435: } duke@435: duke@435: bool java_lang_String::equals(oop java_string, jchar* chars, int len) { coleenp@4178: assert(java_string->klass() == SystemDictionary::String_klass(), duke@435: "must be java_string"); duke@435: typeArrayOop value = java_lang_String::value(java_string); duke@435: int offset = java_lang_String::offset(java_string); duke@435: int length = java_lang_String::length(java_string); duke@435: if (length != len) { duke@435: return false; duke@435: } duke@435: for (int i = 0; i < len; i++) { duke@435: if (value->char_at(i + offset) != chars[i]) { duke@435: return false; duke@435: } duke@435: } duke@435: return true; duke@435: } duke@435: duke@435: void java_lang_String::print(Handle java_string, outputStream* st) { duke@435: oop obj = java_string(); never@1577: assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); duke@435: typeArrayOop value = java_lang_String::value(obj); duke@435: int offset = java_lang_String::offset(obj); duke@435: int length = java_lang_String::length(obj); duke@435: duke@435: int end = MIN2(length, 100); duke@435: if (value == NULL) { duke@435: // This can happen if, e.g., printing a String duke@435: // object before its initializer has been called duke@435: st->print_cr("NULL"); duke@435: } else { duke@435: st->print("\""); duke@435: for (int index = 0; index < length; index++) { duke@435: st->print("%c", value->char_at(index + offset)); duke@435: } duke@435: st->print("\""); duke@435: } duke@435: } duke@435: never@2658: static void initialize_static_field(fieldDescriptor* fd, TRAPS) { never@2658: Handle mirror (THREAD, fd->field_holder()->java_mirror()); never@2658: assert(mirror.not_null() && fd->is_static(), "just checking"); never@2658: if (fd->has_initial_value()) { never@2658: BasicType t = fd->field_type(); never@2658: switch (t) { never@2658: case T_BYTE: never@2658: mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); never@2658: break; never@2658: case T_BOOLEAN: never@2658: mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); never@2658: break; never@2658: case T_CHAR: never@2658: mirror()->char_field_put(fd->offset(), fd->int_initial_value()); never@2658: break; never@2658: case T_SHORT: never@2658: mirror()->short_field_put(fd->offset(), fd->int_initial_value()); never@2658: break; never@2658: case T_INT: never@2658: mirror()->int_field_put(fd->offset(), fd->int_initial_value()); never@2658: break; never@2658: case T_FLOAT: never@2658: mirror()->float_field_put(fd->offset(), fd->float_initial_value()); never@2658: break; never@2658: case T_DOUBLE: never@2658: mirror()->double_field_put(fd->offset(), fd->double_initial_value()); never@2658: break; never@2658: case T_LONG: never@2658: mirror()->long_field_put(fd->offset(), fd->long_initial_value()); never@2658: break; never@2658: case T_OBJECT: never@2658: { never@2658: #ifdef ASSERT never@2658: TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); never@2658: assert(fd->signature() == sym, "just checking"); never@2658: #endif never@2658: oop string = fd->string_initial_value(CHECK); never@2658: mirror()->obj_field_put(fd->offset(), string); never@2658: } never@2658: break; never@2658: default: never@2658: THROW_MSG(vmSymbols::java_lang_ClassFormatError(), never@2658: "Illegal ConstantValue attribute in class file"); never@2658: } never@2658: } never@2658: } never@2658: never@2658: never@2658: void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { coleenp@4047: assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); never@2658: coleenp@4037: // If the offset was read from the shared archive, it was fixed up already coleenp@4037: if (!k->is_shared()) { never@2658: if (k->oop_is_instance()) { never@3137: // During bootstrap, java.lang.Class wasn't loaded so static field never@3137: // offsets were computed without the size added it. Go back and never@3137: // update all the static field offsets to included the size. coleenp@4037: for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { never@3137: if (fs.access_flags().is_static()) { coleenp@4047: int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); never@3137: fs.set_offset(real_offset); never@3137: } never@3137: } never@2658: } coleenp@4037: } never@2658: create_mirror(k, CHECK); never@2658: } duke@435: duke@435: oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { duke@435: assert(k->java_mirror() == NULL, "should only assign mirror once"); duke@435: // Use this moment of initialization to cache modifier_flags also, duke@435: // to support Class.getModifiers(). Instance classes recalculate duke@435: // the cached flags after the class file is parsed, but before the duke@435: // class is put into the system dictionary. duke@435: int computed_modifiers = k->compute_modifier_flags(CHECK_0); duke@435: k->set_modifier_flags(computed_modifiers); coleenp@4037: // Class_klass has to be loaded because it is used to allocate coleenp@4037: // the mirror. coleenp@4037: if (SystemDictionary::Class_klass_loaded()) { duke@435: // Allocate mirror (java.lang.Class instance) coleenp@4047: Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); coleenp@4047: coleenp@4047: InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); never@2658: java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); never@2658: duke@435: // It might also have a component mirror. This mirror must already exist. coleenp@4037: if (k->oop_is_array()) { duke@435: Handle comp_mirror; duke@435: if (k->oop_is_typeArray()) { coleenp@4142: BasicType type = TypeArrayKlass::cast(k())->element_type(); duke@435: comp_mirror = Universe::java_mirror(type); coleenp@4037: } else { coleenp@4037: assert(k->oop_is_objArray(), "Must be"); coleenp@4142: Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); coleenp@4037: assert(element_klass != NULL, "Must have an element klass"); hseigel@4278: comp_mirror = element_klass->java_mirror(); duke@435: } coleenp@4037: assert(comp_mirror.not_null(), "must have a mirror"); coleenp@4037: duke@435: // Two-way link between the array klass and its component mirror: coleenp@4142: ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); coleenp@4037: set_array_klass(comp_mirror(), k()); coleenp@4037: } else { coleenp@4037: assert(k->oop_is_instance(), "Must be"); never@2658: // Initialize static fields coleenp@4037: InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); duke@435: } duke@435: return mirror(); duke@435: } else { coleenp@4037: if (fixup_mirror_list() == NULL) { coleenp@4037: GrowableArray* list = coleenp@4037: new (ResourceObj::C_HEAP, mtClass) GrowableArray(40, true); coleenp@4037: set_fixup_mirror_list(list); coleenp@4037: } coleenp@4037: fixup_mirror_list()->push(k()); duke@435: return NULL; duke@435: } duke@435: } duke@435: duke@435: never@2658: never@2658: int java_lang_Class::oop_size(oop java_class) { never@3137: assert(_oop_size_offset != 0, "must be set"); never@3137: return java_class->int_field(_oop_size_offset); never@2658: } never@2658: void java_lang_Class::set_oop_size(oop java_class, int size) { never@3137: assert(_oop_size_offset != 0, "must be set"); never@3137: java_class->int_field_put(_oop_size_offset, size); never@2658: } never@2658: int java_lang_Class::static_oop_field_count(oop java_class) { never@3137: assert(_static_oop_field_count_offset != 0, "must be set"); never@3137: return java_class->int_field(_static_oop_field_count_offset); never@2658: } never@2658: void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { never@3137: assert(_static_oop_field_count_offset != 0, "must be set"); never@3137: java_class->int_field_put(_static_oop_field_count_offset, size); never@2658: } never@2658: duke@435: oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { duke@435: // This should be improved by adding a field at the Java level or by duke@435: // introducing a new VM klass (see comment in ClassFileParser) coleenp@4047: oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); duke@435: if (type != T_VOID) { coleenp@4037: Klass* aklass = Universe::typeArrayKlassObj(type); duke@435: assert(aklass != NULL, "correct bootstrap"); duke@435: set_array_klass(java_class, aklass); duke@435: } never@3205: #ifdef ASSERT coleenp@4047: InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); never@3205: assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); never@3205: #endif duke@435: return java_class; duke@435: } duke@435: duke@435: coleenp@4037: Klass* java_lang_Class::as_Klass(oop java_class) { duke@435: //%note memory_2 never@2658: assert(java_lang_Class::is_instance(java_class), "must be a Class object"); coleenp@4037: Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); duke@435: assert(k == NULL || k->is_klass(), "type check"); duke@435: return k; duke@435: } duke@435: duke@435: coleenp@4037: void java_lang_Class::set_klass(oop java_class, Klass* klass) { never@3205: assert(java_lang_Class::is_instance(java_class), "must be a Class object"); coleenp@4037: java_class->metadata_field_put(_klass_offset, klass); never@3205: } never@3205: never@3205: jrose@1100: void java_lang_Class::print_signature(oop java_class, outputStream* st) { jrose@1100: assert(java_lang_Class::is_instance(java_class), "must be a Class object"); coleenp@2497: Symbol* name = NULL; jrose@1100: bool is_instance = false; jrose@1100: if (is_primitive(java_class)) { jrose@1100: name = vmSymbols::type_signature(primitive_type(java_class)); jrose@1100: } else { coleenp@4037: Klass* k = as_Klass(java_class); hseigel@4278: is_instance = k->oop_is_instance(); hseigel@4278: name = k->name(); jrose@1100: } jrose@1100: if (name == NULL) { jrose@1100: st->print(""); jrose@1100: return; jrose@1100: } jrose@1100: if (is_instance) st->print("L"); jrose@1100: st->write((char*) name->base(), (int) name->utf8_length()); jrose@1100: if (is_instance) st->print(";"); jrose@1100: } jrose@1100: coleenp@2497: Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { jrose@1100: assert(java_lang_Class::is_instance(java_class), "must be a Class object"); coleenp@2497: Symbol* name; jrose@1100: if (is_primitive(java_class)) { coleenp@2497: name = vmSymbols::type_signature(primitive_type(java_class)); coleenp@2497: // Because this can create a new symbol, the caller has to decrement coleenp@2497: // the refcount, so make adjustment here and below for symbols returned coleenp@2497: // that are not created or incremented due to a successful lookup. coleenp@2497: name->increment_refcount(); jrose@1100: } else { coleenp@4037: Klass* k = as_Klass(java_class); hseigel@4278: if (!k->oop_is_instance()) { hseigel@4278: name = k->name(); coleenp@2497: name->increment_refcount(); jrose@1100: } else { jrose@1100: ResourceMark rm; hseigel@4278: const char* sigstr = k->signature_name(); jrose@1100: int siglen = (int) strlen(sigstr); coleenp@2497: if (!intern_if_not_found) { coleenp@2497: name = SymbolTable::probe(sigstr, siglen); coleenp@2497: } else { coleenp@2497: name = SymbolTable::new_symbol(sigstr, siglen, THREAD); coleenp@2497: } jrose@1100: } jrose@1100: } coleenp@2497: return name; jrose@1100: } jrose@1100: jrose@1100: coleenp@4037: Klass* java_lang_Class::array_klass(oop java_class) { coleenp@4037: Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); hseigel@4278: assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); duke@435: return k; duke@435: } duke@435: duke@435: coleenp@4037: void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { hseigel@4278: assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); coleenp@4037: java_class->metadata_field_put(_array_klass_offset, klass); duke@435: } duke@435: duke@435: duke@435: bool java_lang_Class::is_primitive(oop java_class) { jrose@1100: // should assert: jrose@1100: //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); coleenp@4037: bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); coleenp@4037: coleenp@4037: #ifdef ASSERT coleenp@4037: if (is_primitive) { coleenp@4037: Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); coleenp@4142: assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), coleenp@4037: "Should be either the T_VOID primitive or a java primitive"); coleenp@4037: } coleenp@4037: #endif coleenp@4037: coleenp@4037: return is_primitive; duke@435: } duke@435: duke@435: duke@435: BasicType java_lang_Class::primitive_type(oop java_class) { duke@435: assert(java_lang_Class::is_primitive(java_class), "just checking"); coleenp@4037: Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); duke@435: BasicType type = T_VOID; duke@435: if (ak != NULL) { duke@435: // Note: create_basic_type_mirror above initializes ak to a non-null value. coleenp@4142: type = ArrayKlass::cast(ak)->element_type(); duke@435: } else { duke@435: assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); duke@435: } duke@435: assert(Universe::java_mirror(type) == java_class, "must be consistent"); duke@435: return type; duke@435: } duke@435: coleenp@4037: BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { jrose@1100: assert(java_lang_Class::is_instance(java_class), "must be a Class object"); jrose@1100: if (is_primitive(java_class)) { jrose@1100: if (reference_klass != NULL) jrose@1100: (*reference_klass) = NULL; jrose@1100: return primitive_type(java_class); jrose@1100: } else { jrose@1100: if (reference_klass != NULL) coleenp@4037: (*reference_klass) = as_Klass(java_class); jrose@1100: return T_OBJECT; jrose@1100: } jrose@1100: } jrose@1100: duke@435: duke@435: oop java_lang_Class::primitive_mirror(BasicType t) { duke@435: oop mirror = Universe::java_mirror(t); never@1577: assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); duke@435: assert(java_lang_Class::is_primitive(mirror), "must be primitive"); duke@435: return mirror; duke@435: } duke@435: duke@435: bool java_lang_Class::offsets_computed = false; duke@435: int java_lang_Class::classRedefinedCount_offset = -1; duke@435: duke@435: void java_lang_Class::compute_offsets() { duke@435: assert(!offsets_computed, "offsets should be initialized only once"); duke@435: offsets_computed = true; duke@435: coleenp@4037: Klass* klass_oop = SystemDictionary::Class_klass(); duke@435: // The classRedefinedCount field is only present starting in 1.5, duke@435: // so don't go fatal. jrose@567: compute_optional_offset(classRedefinedCount_offset, never@3137: klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); never@3137: never@3137: CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); duke@435: } duke@435: duke@435: int java_lang_Class::classRedefinedCount(oop the_class_mirror) { duke@435: if (!JDK_Version::is_gte_jdk15x_version() duke@435: || classRedefinedCount_offset == -1) { duke@435: // The classRedefinedCount field is only present starting in 1.5. duke@435: // If we don't have an offset for it then just return -1 as a marker. duke@435: return -1; duke@435: } duke@435: duke@435: return the_class_mirror->int_field(classRedefinedCount_offset); duke@435: } duke@435: duke@435: void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { duke@435: if (!JDK_Version::is_gte_jdk15x_version() duke@435: || classRedefinedCount_offset == -1) { duke@435: // The classRedefinedCount field is only present starting in 1.5. duke@435: // If we don't have an offset for it then nothing to set. duke@435: return; duke@435: } duke@435: duke@435: the_class_mirror->int_field_put(classRedefinedCount_offset, value); duke@435: } duke@435: duke@435: duke@435: // Note: JDK1.1 and before had a privateInfo_offset field which was used for the duke@435: // platform thread structure, and a eetop offset which was used for thread duke@435: // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures duke@435: // merged, so in the HotSpot VM we just use the eetop field for the thread duke@435: // instead of the privateInfo_offset. duke@435: // duke@435: // Note: The stackSize field is only present starting in 1.4. duke@435: duke@435: int java_lang_Thread::_name_offset = 0; duke@435: int java_lang_Thread::_group_offset = 0; duke@435: int java_lang_Thread::_contextClassLoader_offset = 0; duke@435: int java_lang_Thread::_inheritedAccessControlContext_offset = 0; duke@435: int java_lang_Thread::_priority_offset = 0; duke@435: int java_lang_Thread::_eetop_offset = 0; duke@435: int java_lang_Thread::_daemon_offset = 0; duke@435: int java_lang_Thread::_stillborn_offset = 0; duke@435: int java_lang_Thread::_stackSize_offset = 0; duke@435: int java_lang_Thread::_tid_offset = 0; duke@435: int java_lang_Thread::_thread_status_offset = 0; duke@435: int java_lang_Thread::_park_blocker_offset = 0; duke@435: int java_lang_Thread::_park_event_offset = 0 ; duke@435: duke@435: duke@435: void java_lang_Thread::compute_offsets() { duke@435: assert(_group_offset == 0, "offsets should be initialized only once"); duke@435: coleenp@4037: Klass* k = SystemDictionary::Thread_klass(); jrose@567: compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); jrose@567: compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); jrose@567: compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); jrose@567: compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); jrose@567: compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); jrose@567: compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); jrose@567: compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); jrose@567: compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); duke@435: // The stackSize field is only present starting in 1.4, so don't go fatal. jrose@567: compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); duke@435: // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. jrose@567: compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); jrose@567: compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); duke@435: // The parkBlocker field is only present starting in 1.6, so don't go fatal. jrose@567: compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); jrose@567: compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), duke@435: vmSymbols::long_signature()); duke@435: } duke@435: duke@435: duke@435: JavaThread* java_lang_Thread::thread(oop java_thread) { coleenp@548: return (JavaThread*)java_thread->address_field(_eetop_offset); duke@435: } duke@435: duke@435: duke@435: void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { coleenp@548: java_thread->address_field_put(_eetop_offset, (address)thread); duke@435: } duke@435: duke@435: duke@435: typeArrayOop java_lang_Thread::name(oop java_thread) { duke@435: oop name = java_thread->obj_field(_name_offset); coleenp@4142: assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); duke@435: return typeArrayOop(name); duke@435: } duke@435: duke@435: duke@435: void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { duke@435: assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); duke@435: java_thread->obj_field_put(_name_offset, name); duke@435: } duke@435: duke@435: duke@435: ThreadPriority java_lang_Thread::priority(oop java_thread) { duke@435: return (ThreadPriority)java_thread->int_field(_priority_offset); duke@435: } duke@435: duke@435: duke@435: void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { duke@435: java_thread->int_field_put(_priority_offset, priority); duke@435: } duke@435: duke@435: duke@435: oop java_lang_Thread::threadGroup(oop java_thread) { duke@435: return java_thread->obj_field(_group_offset); duke@435: } duke@435: duke@435: duke@435: bool java_lang_Thread::is_stillborn(oop java_thread) { duke@435: return java_thread->bool_field(_stillborn_offset) != 0; duke@435: } duke@435: duke@435: duke@435: // We never have reason to turn the stillborn bit off duke@435: void java_lang_Thread::set_stillborn(oop java_thread) { duke@435: java_thread->bool_field_put(_stillborn_offset, true); duke@435: } duke@435: duke@435: duke@435: bool java_lang_Thread::is_alive(oop java_thread) { duke@435: JavaThread* thr = java_lang_Thread::thread(java_thread); duke@435: return (thr != NULL); duke@435: } duke@435: duke@435: duke@435: bool java_lang_Thread::is_daemon(oop java_thread) { duke@435: return java_thread->bool_field(_daemon_offset) != 0; duke@435: } duke@435: duke@435: duke@435: void java_lang_Thread::set_daemon(oop java_thread) { duke@435: java_thread->bool_field_put(_daemon_offset, true); duke@435: } duke@435: duke@435: oop java_lang_Thread::context_class_loader(oop java_thread) { duke@435: return java_thread->obj_field(_contextClassLoader_offset); duke@435: } duke@435: duke@435: oop java_lang_Thread::inherited_access_control_context(oop java_thread) { duke@435: return java_thread->obj_field(_inheritedAccessControlContext_offset); duke@435: } duke@435: duke@435: duke@435: jlong java_lang_Thread::stackSize(oop java_thread) { duke@435: // The stackSize field is only present starting in 1.4 duke@435: if (_stackSize_offset > 0) { duke@435: assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); duke@435: return java_thread->long_field(_stackSize_offset); duke@435: } else { duke@435: return 0; duke@435: } duke@435: } duke@435: duke@435: // Write the thread status value to threadStatus field in java.lang.Thread java class. duke@435: void java_lang_Thread::set_thread_status(oop java_thread, duke@435: java_lang_Thread::ThreadStatus status) { duke@435: // The threadStatus is only present starting in 1.5 duke@435: if (_thread_status_offset > 0) { duke@435: java_thread->int_field_put(_thread_status_offset, status); duke@435: } duke@435: } duke@435: duke@435: // Read thread status value from threadStatus field in java.lang.Thread java class. duke@435: java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { duke@435: assert(Thread::current()->is_VM_thread() || duke@435: JavaThread::current()->thread_state() == _thread_in_vm, duke@435: "Java Thread is not running in vm"); duke@435: // The threadStatus is only present starting in 1.5 duke@435: if (_thread_status_offset > 0) { duke@435: return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); duke@435: } else { duke@435: // All we can easily figure out is if it is alive, but that is duke@435: // enough info for a valid unknown status. duke@435: // These aren't restricted to valid set ThreadStatus values, so duke@435: // use JVMTI values and cast. duke@435: JavaThread* thr = java_lang_Thread::thread(java_thread); duke@435: if (thr == NULL) { duke@435: // the thread hasn't run yet or is in the process of exiting duke@435: return NEW; duke@435: } duke@435: return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; duke@435: } duke@435: } duke@435: duke@435: duke@435: jlong java_lang_Thread::thread_id(oop java_thread) { duke@435: // The thread ID field is only present starting in 1.5 duke@435: if (_tid_offset > 0) { duke@435: return java_thread->long_field(_tid_offset); duke@435: } else { duke@435: return 0; duke@435: } duke@435: } duke@435: duke@435: oop java_lang_Thread::park_blocker(oop java_thread) { kamg@677: assert(JDK_Version::current().supports_thread_park_blocker() && kamg@677: _park_blocker_offset != 0, "Must support parkBlocker field"); duke@435: duke@435: if (_park_blocker_offset > 0) { duke@435: return java_thread->obj_field(_park_blocker_offset); duke@435: } duke@435: duke@435: return NULL; duke@435: } duke@435: duke@435: jlong java_lang_Thread::park_event(oop java_thread) { duke@435: if (_park_event_offset > 0) { duke@435: return java_thread->long_field(_park_event_offset); duke@435: } duke@435: return 0; duke@435: } duke@435: duke@435: bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { duke@435: if (_park_event_offset > 0) { duke@435: java_thread->long_field_put(_park_event_offset, ptr); duke@435: return true; duke@435: } duke@435: return false; duke@435: } duke@435: duke@435: duke@435: const char* java_lang_Thread::thread_status_name(oop java_thread) { duke@435: assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); duke@435: ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); duke@435: switch (status) { duke@435: case NEW : return "NEW"; duke@435: case RUNNABLE : return "RUNNABLE"; duke@435: case SLEEPING : return "TIMED_WAITING (sleeping)"; duke@435: case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; duke@435: case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; duke@435: case PARKED : return "WAITING (parking)"; duke@435: case PARKED_TIMED : return "TIMED_WAITING (parking)"; duke@435: case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; duke@435: case TERMINATED : return "TERMINATED"; duke@435: default : return "UNKNOWN"; duke@435: }; duke@435: } duke@435: int java_lang_ThreadGroup::_parent_offset = 0; duke@435: int java_lang_ThreadGroup::_name_offset = 0; duke@435: int java_lang_ThreadGroup::_threads_offset = 0; duke@435: int java_lang_ThreadGroup::_groups_offset = 0; duke@435: int java_lang_ThreadGroup::_maxPriority_offset = 0; duke@435: int java_lang_ThreadGroup::_destroyed_offset = 0; duke@435: int java_lang_ThreadGroup::_daemon_offset = 0; duke@435: int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; duke@435: int java_lang_ThreadGroup::_nthreads_offset = 0; duke@435: int java_lang_ThreadGroup::_ngroups_offset = 0; duke@435: duke@435: oop java_lang_ThreadGroup::parent(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return java_thread_group->obj_field(_parent_offset); duke@435: } duke@435: duke@435: // ("name as oop" accessor is not necessary) duke@435: duke@435: typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { duke@435: oop name = java_thread_group->obj_field(_name_offset); duke@435: // ThreadGroup.name can be null duke@435: return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); duke@435: } duke@435: duke@435: int java_lang_ThreadGroup::nthreads(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return java_thread_group->int_field(_nthreads_offset); duke@435: } duke@435: duke@435: objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { duke@435: oop threads = java_thread_group->obj_field(_threads_offset); duke@435: assert(threads != NULL, "threadgroups should have threads"); duke@435: assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code duke@435: return objArrayOop(threads); duke@435: } duke@435: duke@435: int java_lang_ThreadGroup::ngroups(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return java_thread_group->int_field(_ngroups_offset); duke@435: } duke@435: duke@435: objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { duke@435: oop groups = java_thread_group->obj_field(_groups_offset); duke@435: assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code duke@435: return objArrayOop(groups); duke@435: } duke@435: duke@435: ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); duke@435: } duke@435: duke@435: bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return java_thread_group->bool_field(_destroyed_offset) != 0; duke@435: } duke@435: duke@435: bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return java_thread_group->bool_field(_daemon_offset) != 0; duke@435: } duke@435: duke@435: bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { duke@435: assert(java_thread_group->is_oop(), "thread group must be oop"); duke@435: return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; duke@435: } duke@435: duke@435: void java_lang_ThreadGroup::compute_offsets() { duke@435: assert(_parent_offset == 0, "offsets should be initialized only once"); duke@435: coleenp@4037: Klass* k = SystemDictionary::ThreadGroup_klass(); duke@435: jrose@567: compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); jrose@567: compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); jrose@567: compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); jrose@567: compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); jrose@567: compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); jrose@567: compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); jrose@567: compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); jrose@567: compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); jrose@567: compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); jrose@567: compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); duke@435: } duke@435: dholmes@3018: oop java_lang_Throwable::unassigned_stacktrace() { coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); dholmes@3018: address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); dholmes@3018: if (UseCompressedOops) { dholmes@3018: return oopDesc::load_decode_heap_oop((narrowOop *)addr); dholmes@3018: } else { dholmes@3018: return oopDesc::load_decode_heap_oop((oop*)addr); dholmes@3018: } dholmes@3018: } dholmes@3018: duke@435: oop java_lang_Throwable::backtrace(oop throwable) { duke@435: return throwable->obj_field_acquire(backtrace_offset); duke@435: } duke@435: duke@435: duke@435: void java_lang_Throwable::set_backtrace(oop throwable, oop value) { duke@435: throwable->release_obj_field_put(backtrace_offset, value); duke@435: } duke@435: duke@435: duke@435: oop java_lang_Throwable::message(oop throwable) { duke@435: return throwable->obj_field(detailMessage_offset); duke@435: } duke@435: duke@435: duke@435: oop java_lang_Throwable::message(Handle throwable) { duke@435: return throwable->obj_field(detailMessage_offset); duke@435: } duke@435: duke@435: duke@435: void java_lang_Throwable::set_message(oop throwable, oop value) { duke@435: throwable->obj_field_put(detailMessage_offset, value); duke@435: } duke@435: duke@435: dholmes@3018: void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { dholmes@3018: throwable->obj_field_put(stackTrace_offset, st_element_array); dholmes@3018: } dholmes@3018: duke@435: void java_lang_Throwable::clear_stacktrace(oop throwable) { duke@435: assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); dholmes@3018: set_stacktrace(throwable, NULL); duke@435: } duke@435: duke@435: duke@435: void java_lang_Throwable::print(oop throwable, outputStream* st) { duke@435: ResourceMark rm; coleenp@4037: Klass* k = throwable->klass(); duke@435: assert(k != NULL, "just checking"); coleenp@4037: st->print("%s", InstanceKlass::cast(k)->external_name()); duke@435: oop msg = message(throwable); duke@435: if (msg != NULL) { duke@435: st->print(": %s", java_lang_String::as_utf8_string(msg)); duke@435: } duke@435: } duke@435: duke@435: duke@435: void java_lang_Throwable::print(Handle throwable, outputStream* st) { duke@435: ResourceMark rm; coleenp@4037: Klass* k = throwable->klass(); duke@435: assert(k != NULL, "just checking"); coleenp@4037: st->print("%s", InstanceKlass::cast(k)->external_name()); duke@435: oop msg = message(throwable); duke@435: if (msg != NULL) { duke@435: st->print(": %s", java_lang_String::as_utf8_string(msg)); duke@435: } duke@435: } duke@435: coleenp@4466: // After this many redefines, the stack trace is unreliable. coleenp@4466: const int MAX_VERSION = USHRT_MAX; coleenp@4466: coleenp@4466: // Helper backtrace functions to store bci|version together. coleenp@4466: static inline int merge_bci_and_version(int bci, int version) { coleenp@4466: // only store u2 for version, checking for overflow. coleenp@4466: if (version > USHRT_MAX || version < 0) version = MAX_VERSION; coleenp@4466: assert((jushort)bci == bci, "bci should be short"); coleenp@4466: return build_int_from_shorts(version, bci); coleenp@4466: } coleenp@4466: coleenp@4466: static inline int bci_at(unsigned int merged) { coleenp@4466: return extract_high_short_from_int(merged); coleenp@4466: } coleenp@4466: static inline int version_at(unsigned int merged) { coleenp@4466: return extract_low_short_from_int(merged); coleenp@4466: } coleenp@4466: coleenp@4466: static inline bool version_matches(Method* method, int version) { coleenp@4466: return (method->constants()->version() == version && version < MAX_VERSION); coleenp@4466: } coleenp@4466: coleenp@4466: static inline int get_line_number(Method* method, int bci) { coleenp@4466: int line_number = 0; coleenp@4466: if (method->is_native()) { coleenp@4466: // Negative value different from -1 below, enabling Java code in coleenp@4466: // class java.lang.StackTraceElement to distinguish "native" from coleenp@4466: // "no LineNumberTable". JDK tests for -2. coleenp@4466: line_number = -2; duke@435: } else { coleenp@4466: // Returns -1 if no LineNumberTable, and otherwise actual line number coleenp@4466: line_number = method->line_number_from_bci(bci); coleenp@4466: if (line_number == -1 && ShowHiddenFrames) { coleenp@4466: line_number = bci + 1000000; duke@435: } duke@435: } coleenp@4466: return line_number; duke@435: } duke@435: duke@435: // This class provides a simple wrapper over the internal structure of duke@435: // exception backtrace to insulate users of the backtrace from needing duke@435: // to know what it looks like. duke@435: class BacktraceBuilder: public StackObj { duke@435: private: duke@435: Handle _backtrace; duke@435: objArrayOop _head; coleenp@4037: typeArrayOop _methods; duke@435: typeArrayOop _bcis; coleenp@4037: objArrayOop _mirrors; duke@435: int _index; duke@435: No_Safepoint_Verifier _nsv; duke@435: duke@435: public: duke@435: duke@435: enum { duke@435: trace_methods_offset = java_lang_Throwable::trace_methods_offset, coleenp@4466: trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, coleenp@4037: trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, duke@435: trace_next_offset = java_lang_Throwable::trace_next_offset, duke@435: trace_size = java_lang_Throwable::trace_size, duke@435: trace_chunk_size = java_lang_Throwable::trace_chunk_size duke@435: }; duke@435: coleenp@4466: // get info out of chunks coleenp@4466: static typeArrayOop get_methods(objArrayHandle chunk) { coleenp@4466: typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); coleenp@4466: assert(methods != NULL, "method array should be initialized in backtrace"); coleenp@4466: return methods; coleenp@4466: } coleenp@4466: static typeArrayOop get_bcis(objArrayHandle chunk) { coleenp@4466: typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); coleenp@4466: assert(bcis != NULL, "bci array should be initialized in backtrace"); coleenp@4466: return bcis; coleenp@4466: } coleenp@4466: static objArrayOop get_mirrors(objArrayHandle chunk) { coleenp@4466: objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset)); coleenp@4466: assert(mirrors != NULL, "mirror array should be initialized in backtrace"); coleenp@4466: return mirrors; coleenp@4466: } coleenp@4466: duke@435: // constructor for new backtrace coleenp@4037: BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { duke@435: expand(CHECK); duke@435: _backtrace = _head; duke@435: _index = 0; duke@435: } duke@435: coleenp@4466: BacktraceBuilder(objArrayHandle backtrace) { coleenp@4466: _methods = get_methods(backtrace); coleenp@4466: _bcis = get_bcis(backtrace); coleenp@4466: _mirrors = get_mirrors(backtrace); coleenp@4466: assert(_methods->length() == _bcis->length() && coleenp@4466: _methods->length() == _mirrors->length(), coleenp@4466: "method and source information arrays should match"); coleenp@4466: coleenp@4466: // head is the preallocated backtrace coleenp@4466: _backtrace = _head = backtrace(); coleenp@4466: _index = 0; coleenp@4466: } coleenp@4466: duke@435: void expand(TRAPS) { duke@435: objArrayHandle old_head(THREAD, _head); duke@435: Pause_No_Safepoint_Verifier pnsv(&_nsv); duke@435: duke@435: objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); duke@435: objArrayHandle new_head(THREAD, head); duke@435: coleenp@4466: typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK); coleenp@4037: typeArrayHandle new_methods(THREAD, methods); duke@435: coleenp@4466: typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK); duke@435: typeArrayHandle new_bcis(THREAD, bcis); duke@435: coleenp@4037: objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); coleenp@4037: objArrayHandle new_mirrors(THREAD, mirrors); coleenp@4037: duke@435: if (!old_head.is_null()) { duke@435: old_head->obj_at_put(trace_next_offset, new_head()); duke@435: } duke@435: new_head->obj_at_put(trace_methods_offset, new_methods()); duke@435: new_head->obj_at_put(trace_bcis_offset, new_bcis()); coleenp@4037: new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); duke@435: duke@435: _head = new_head(); duke@435: _methods = new_methods(); coleenp@4466: _bcis = new_bcis(); coleenp@4037: _mirrors = new_mirrors(); duke@435: _index = 0; duke@435: } duke@435: duke@435: oop backtrace() { duke@435: return _backtrace(); duke@435: } duke@435: coleenp@4037: inline void push(Method* method, int bci, TRAPS) { never@3444: // Smear the -1 bci to 0 since the array only holds unsigned never@3444: // shorts. The later line number lookup would just smear the -1 never@3444: // to a 0 even if it could be recorded. never@3444: if (bci == SynchronizationEntryBCI) bci = 0; never@3444: duke@435: if (_index >= trace_chunk_size) { duke@435: methodHandle mhandle(THREAD, method); duke@435: expand(CHECK); duke@435: method = mhandle(); duke@435: } duke@435: coleenp@4466: _methods->short_at_put(_index, method->method_idnum()); coleenp@4466: _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version())); coleenp@4466: coleenp@4466: // We need to save the mirrors in the backtrace to keep the class coleenp@4466: // from being unloaded while we still have this stack trace. coleenp@4466: assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror"); coleenp@4037: _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); duke@435: _index++; duke@435: } duke@435: coleenp@4466: }; coleenp@4466: coleenp@4466: // Print stack trace element to resource allocated buffer coleenp@4466: char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror, coleenp@4466: int method_id, int version, int bci) { coleenp@4466: coleenp@4466: // Get strings and string lengths coleenp@4466: InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); coleenp@4466: const char* klass_name = holder->external_name(); coleenp@4466: int buf_len = (int)strlen(klass_name); coleenp@4466: coleenp@4466: // pushing to the stack trace added one. coleenp@4466: Method* method = holder->method_with_idnum(method_id); coleenp@4466: char* method_name = method->name()->as_C_string(); coleenp@4466: buf_len += (int)strlen(method_name); coleenp@4466: coleenp@4466: char* source_file_name = NULL; coleenp@4466: if (version_matches(method, version)) { coleenp@4466: Symbol* source = holder->source_file_name(); coleenp@4466: if (source != NULL) { coleenp@4466: source_file_name = source->as_C_string(); coleenp@4466: buf_len += (int)strlen(source_file_name); coleenp@4466: } duke@435: } duke@435: coleenp@4466: // Allocate temporary buffer with extra space for formatting and line number coleenp@4466: char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); coleenp@4466: coleenp@4466: // Print stack trace line in buffer coleenp@4466: sprintf(buf, "\tat %s.%s", klass_name, method_name); coleenp@4466: coleenp@4466: if (!version_matches(method, version)) { coleenp@4466: strcat(buf, "(Redefined)"); coleenp@4466: } else { coleenp@4466: int line_number = get_line_number(method, bci); coleenp@4466: if (line_number == -2) { coleenp@4466: strcat(buf, "(Native Method)"); coleenp@4466: } else { coleenp@4466: if (source_file_name != NULL && (line_number != -1)) { coleenp@4466: // Sourcename and linenumber coleenp@4466: sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); coleenp@4466: } else if (source_file_name != NULL) { coleenp@4466: // Just sourcename coleenp@4466: sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); coleenp@4466: } else { coleenp@4466: // Neither sourcename nor linenumber coleenp@4466: sprintf(buf + (int)strlen(buf), "(Unknown Source)"); coleenp@4466: } coleenp@4466: nmethod* nm = method->code(); coleenp@4466: if (WizardMode && nm != NULL) { coleenp@4466: sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); coleenp@4466: } coleenp@4466: } duke@435: } coleenp@4466: coleenp@4466: return buf; coleenp@4466: } coleenp@4466: coleenp@4466: void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror, coleenp@4466: int method_id, int version, int bci) { coleenp@4466: ResourceMark rm; coleenp@4466: char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci); coleenp@4466: st->print_cr("%s", buf); coleenp@4466: } coleenp@4466: coleenp@4466: void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) { coleenp@4466: Handle mirror = method->method_holder()->java_mirror(); coleenp@4466: int method_id = method->method_idnum(); coleenp@4466: int version = method->constants()->version(); coleenp@4466: print_stack_element(st, mirror, method_id, version, bci); coleenp@4466: } coleenp@4466: coleenp@4466: const char* java_lang_Throwable::no_stack_trace_message() { coleenp@4466: return "\t<>"; coleenp@4466: } coleenp@4466: coleenp@4466: coleenp@4466: // Currently used only for exceptions occurring during startup coleenp@4466: void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { coleenp@4466: Thread *THREAD = Thread::current(); coleenp@4466: Handle h_throwable(THREAD, throwable); coleenp@4466: while (h_throwable.not_null()) { coleenp@4466: objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); coleenp@4466: if (result.is_null()) { coleenp@4466: st->print_cr(no_stack_trace_message()); coleenp@4466: return; coleenp@4466: } coleenp@4466: coleenp@4466: while (result.not_null()) { coleenp@4466: coleenp@4466: // Get method id, bci, version and mirror from chunk coleenp@4466: typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result)); coleenp@4466: typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result)); coleenp@4466: objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result)); coleenp@4466: coleenp@4466: int length = methods()->length(); coleenp@4466: for (int index = 0; index < length; index++) { coleenp@4466: Handle mirror(THREAD, mirrors->obj_at(index)); coleenp@4466: // NULL mirror means end of stack trace coleenp@4466: if (mirror.is_null()) goto handle_cause; coleenp@4466: int method = methods->short_at(index); coleenp@4466: int version = version_at(bcis->int_at(index)); coleenp@4466: int bci = bci_at(bcis->int_at(index)); coleenp@4466: print_stack_element(st, mirror, method, version, bci); coleenp@4466: } coleenp@4466: result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); coleenp@4466: } coleenp@4466: handle_cause: coleenp@4466: { coleenp@4466: EXCEPTION_MARK; coleenp@4466: JavaValue cause(T_OBJECT); coleenp@4466: JavaCalls::call_virtual(&cause, coleenp@4466: h_throwable, coleenp@4466: KlassHandle(THREAD, h_throwable->klass()), coleenp@4466: vmSymbols::getCause_name(), coleenp@4466: vmSymbols::void_throwable_signature(), coleenp@4466: THREAD); coleenp@4466: // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. coleenp@4466: if (HAS_PENDING_EXCEPTION) { coleenp@4466: CLEAR_PENDING_EXCEPTION; coleenp@4466: h_throwable = Handle(); coleenp@4466: } else { coleenp@4466: h_throwable = Handle(THREAD, (oop) cause.get_jobject()); coleenp@4466: if (h_throwable.not_null()) { coleenp@4466: st->print("Caused by: "); coleenp@4466: print(h_throwable, st); coleenp@4466: st->cr(); coleenp@4466: } coleenp@4466: } coleenp@4466: } coleenp@4466: } coleenp@4466: } duke@435: coleenp@2804: void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { duke@435: if (!StackTraceInThrowable) return; duke@435: ResourceMark rm(THREAD); duke@435: duke@435: // Start out by clearing the backtrace for this object, in case the VM duke@435: // runs out of memory while allocating the stack trace duke@435: set_backtrace(throwable(), NULL); duke@435: if (JDK_Version::is_gte_jdk14x_version()) { duke@435: // New since 1.4, clear lazily constructed Java level stacktrace if duke@435: // refilling occurs dholmes@3018: // This is unnecessary in 1.7+ but harmless duke@435: clear_stacktrace(throwable()); duke@435: } duke@435: duke@435: int max_depth = MaxJavaStackTraceDepth; duke@435: JavaThread* thread = (JavaThread*)THREAD; duke@435: BacktraceBuilder bt(CHECK); duke@435: coleenp@2804: // If there is no Java frame just return the method that was being called coleenp@2804: // with bci 0 coleenp@2804: if (!thread->has_last_Java_frame()) { coleenp@2804: if (max_depth >= 1 && method() != NULL) { coleenp@2804: bt.push(method(), 0, CHECK); coleenp@2804: set_backtrace(throwable(), bt.backtrace()); coleenp@2804: } coleenp@2804: return; coleenp@2804: } coleenp@2804: duke@435: // Instead of using vframe directly, this version of fill_in_stack_trace duke@435: // basically handles everything by hand. This significantly improved the duke@435: // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. duke@435: // See bug 6333838 for more details. duke@435: // The "ASSERT" here is to verify this method generates the exactly same stack duke@435: // trace as utilizing vframe. duke@435: #ifdef ASSERT duke@435: vframeStream st(thread); duke@435: methodHandle st_method(THREAD, st.method()); duke@435: #endif duke@435: int total_count = 0; duke@435: RegisterMap map(thread, false); duke@435: int decode_offset = 0; duke@435: nmethod* nm = NULL; duke@435: bool skip_fillInStackTrace_check = false; duke@435: bool skip_throwableInit_check = false; twisti@3970: bool skip_hidden = !ShowHiddenFrames; duke@435: duke@435: for (frame fr = thread->last_frame(); max_depth != total_count;) { coleenp@4037: Method* method = NULL; duke@435: int bci = 0; duke@435: duke@435: // Compiled java method case. duke@435: if (decode_offset != 0) { duke@435: DebugInfoReadStream stream(nm, decode_offset); duke@435: decode_offset = stream.read_int(); coleenp@4037: method = (Method*)nm->metadata_at(stream.read_int()); cfang@1366: bci = stream.read_bci(); duke@435: } else { duke@435: if (fr.is_first_frame()) break; duke@435: address pc = fr.pc(); duke@435: if (fr.is_interpreted_frame()) { duke@435: intptr_t bcx = fr.interpreter_frame_bcx(); duke@435: method = fr.interpreter_frame_method(); duke@435: bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); duke@435: fr = fr.sender(&map); duke@435: } else { duke@435: CodeBlob* cb = fr.cb(); duke@435: // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL duke@435: // but non nmethod duke@435: fr = fr.sender(&map); duke@435: if (cb == NULL || !cb->is_nmethod()) { duke@435: continue; duke@435: } duke@435: nm = (nmethod*)cb; duke@435: if (nm->method()->is_native()) { duke@435: method = nm->method(); duke@435: bci = 0; duke@435: } else { duke@435: PcDesc* pd = nm->pc_desc_at(pc); duke@435: decode_offset = pd->scope_decode_offset(); duke@435: // if decode_offset is not equal to 0, it will execute the duke@435: // "compiled java method case" at the beginning of the loop. duke@435: continue; duke@435: } duke@435: } duke@435: } duke@435: #ifdef ASSERT dholmes@2758: assert(st_method() == method && st.bci() == bci, dholmes@2758: "Wrong stack trace"); dholmes@2758: st.next(); dholmes@2758: // vframeStream::method isn't GC-safe so store off a copy coleenp@4037: // of the Method* in case we GC. dholmes@2758: if (!st.at_end()) { dholmes@2758: st_method = st.method(); dholmes@2758: } duke@435: #endif dholmes@2758: dholmes@2758: // the format of the stacktrace will be: dholmes@2758: // - 1 or more fillInStackTrace frames for the exception class (skipped) dholmes@2758: // - 0 or more methods for the exception class (skipped) dholmes@2758: // - rest of the stack dholmes@2758: duke@435: if (!skip_fillInStackTrace_check) { dholmes@2758: if ((method->name() == vmSymbols::fillInStackTrace_name() || dholmes@2758: method->name() == vmSymbols::fillInStackTrace0_name()) && dholmes@2758: throwable->is_a(method->method_holder())) { duke@435: continue; duke@435: } dholmes@2758: else { dholmes@2758: skip_fillInStackTrace_check = true; // gone past them all dholmes@2758: } duke@435: } duke@435: if (!skip_throwableInit_check) { dholmes@2758: assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); dholmes@2758: dholmes@2758: // skip methods of the exception class and superclasses dholmes@2758: // This is simlar to classic VM. duke@435: if (method->name() == vmSymbols::object_initializer_name() && duke@435: throwable->is_a(method->method_holder())) { duke@435: continue; duke@435: } else { dholmes@2758: // there are none or we've seen them all - either way stop checking duke@435: skip_throwableInit_check = true; duke@435: } duke@435: } twisti@3969: if (method->is_hidden()) { twisti@3969: if (skip_hidden) continue; twisti@3969: } duke@435: bt.push(method, bci, CHECK); duke@435: total_count++; duke@435: } duke@435: duke@435: // Put completed stack trace into throwable object duke@435: set_backtrace(throwable(), bt.backtrace()); duke@435: } duke@435: coleenp@2804: void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { duke@435: // No-op if stack trace is disabled duke@435: if (!StackTraceInThrowable) { duke@435: return; duke@435: } duke@435: duke@435: // Disable stack traces for some preallocated out of memory errors duke@435: if (!Universe::should_fill_in_stack_trace(throwable)) { duke@435: return; duke@435: } duke@435: duke@435: PRESERVE_EXCEPTION_MARK; duke@435: duke@435: JavaThread* thread = JavaThread::active(); coleenp@2804: fill_in_stack_trace(throwable, method, thread); duke@435: // ignore exceptions thrown during stack trace filling duke@435: CLEAR_PENDING_EXCEPTION; duke@435: } duke@435: duke@435: void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { duke@435: // Allocate stack trace - backtrace is created but not filled in duke@435: duke@435: // No-op if stack trace is disabled duke@435: if (!StackTraceInThrowable) return; coleenp@4466: BacktraceBuilder bt(CHECK); // creates a backtrace coleenp@4466: set_backtrace(throwable(), bt.backtrace()); duke@435: } duke@435: duke@435: duke@435: void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { duke@435: // Fill in stack trace into preallocated backtrace (no GC) duke@435: duke@435: // No-op if stack trace is disabled duke@435: if (!StackTraceInThrowable) return; duke@435: never@1577: assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); duke@435: coleenp@4466: JavaThread* THREAD = JavaThread::current(); coleenp@4466: coleenp@4466: objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable())); coleenp@4466: assert(backtrace.not_null(), "backtrace should have been preallocated"); coleenp@4466: coleenp@4466: ResourceMark rm(THREAD); coleenp@4466: vframeStream st(THREAD); coleenp@4466: coleenp@4466: BacktraceBuilder bt(backtrace); duke@435: duke@435: // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init duke@435: // methods as preallocated errors aren't created by "java" code. duke@435: duke@435: // fill in as much stack trace as possible coleenp@4466: typeArrayOop methods = BacktraceBuilder::get_methods(backtrace); duke@435: int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); duke@435: int chunk_count = 0; duke@435: duke@435: for (;!st.at_end(); st.next()) { coleenp@4466: bt.push(st.method(), st.bci(), CHECK); duke@435: chunk_count++; duke@435: duke@435: // Bail-out for deep stacks duke@435: if (chunk_count >= max_chunks) break; duke@435: } dholmes@3018: dholmes@3018: // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support dholmes@3018: // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround dholmes@3018: // can be removed in a JDK using this JVM version dholmes@3018: if (JDK_Version::is_gte_jdk17x_version()) { dholmes@3018: java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); dholmes@3018: assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); dholmes@3018: } duke@435: } duke@435: duke@435: duke@435: int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { duke@435: if (throwable == NULL) { duke@435: THROW_0(vmSymbols::java_lang_NullPointerException()); duke@435: } duke@435: objArrayOop chunk = objArrayOop(backtrace(throwable)); duke@435: int depth = 0; duke@435: if (chunk != NULL) { duke@435: // Iterate over chunks and count full ones duke@435: while (true) { duke@435: objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); duke@435: if (next == NULL) break; duke@435: depth += trace_chunk_size; duke@435: chunk = next; duke@435: } duke@435: assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); coleenp@4466: // Count element in remaining partial chunk. NULL value for mirror coleenp@4466: // marks the end of the stack trace elements that are saved. coleenp@4466: objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); coleenp@4466: assert(mirrors != NULL, "sanity check"); coleenp@4466: for (int i = 0; i < mirrors->length(); i++) { coleenp@4466: if (mirrors->obj_at(i) == NULL) break; duke@435: depth++; duke@435: } duke@435: } duke@435: return depth; duke@435: } duke@435: duke@435: duke@435: oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { duke@435: if (throwable == NULL) { duke@435: THROW_0(vmSymbols::java_lang_NullPointerException()); duke@435: } duke@435: if (index < 0) { duke@435: THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); duke@435: } duke@435: // Compute how many chunks to skip and index into actual chunk duke@435: objArrayOop chunk = objArrayOop(backtrace(throwable)); duke@435: int skip_chunks = index / trace_chunk_size; duke@435: int chunk_index = index % trace_chunk_size; duke@435: while (chunk != NULL && skip_chunks > 0) { duke@435: chunk = objArrayOop(chunk->obj_at(trace_next_offset)); duke@435: skip_chunks--; duke@435: } duke@435: if (chunk == NULL) { duke@435: THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); duke@435: } coleenp@4466: // Get method id, bci, version and mirror from chunk coleenp@4466: typeArrayOop methods = BacktraceBuilder::get_methods(chunk); coleenp@4466: typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk); coleenp@4466: objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); coleenp@4466: coleenp@4466: assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check"); coleenp@4466: coleenp@4466: int method = methods->short_at(chunk_index); coleenp@4466: int version = version_at(bcis->int_at(chunk_index)); coleenp@4466: int bci = bci_at(bcis->int_at(chunk_index)); coleenp@4466: Handle mirror(THREAD, mirrors->obj_at(chunk_index)); coleenp@4466: duke@435: // Chunk can be partial full coleenp@4466: if (mirror.is_null()) { duke@435: THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); duke@435: } duke@435: coleenp@4466: oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, CHECK_0); duke@435: return element; duke@435: } duke@435: coleenp@4466: oop java_lang_StackTraceElement::create(Handle mirror, int method_id, int version, int bci, TRAPS) { duke@435: // Allocate java.lang.StackTraceElement instance coleenp@4037: Klass* k = SystemDictionary::StackTraceElement_klass(); jrose@567: assert(k != NULL, "must be loaded in 1.4+"); duke@435: instanceKlassHandle ik (THREAD, k); duke@435: if (ik->should_be_initialized()) { duke@435: ik->initialize(CHECK_0); duke@435: } duke@435: duke@435: Handle element = ik->allocate_instance_handle(CHECK_0); duke@435: // Fill in class name duke@435: ResourceMark rm(THREAD); coleenp@4466: InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); coleenp@4466: const char* str = holder->external_name(); duke@435: oop classname = StringTable::intern((char*) str, CHECK_0); duke@435: java_lang_StackTraceElement::set_declaringClass(element(), classname); coleenp@4466: duke@435: // Fill in method name coleenp@4466: Method* method = holder->method_with_idnum(method_id); duke@435: oop methodname = StringTable::intern(method->name(), CHECK_0); duke@435: java_lang_StackTraceElement::set_methodName(element(), methodname); coleenp@4466: coleenp@4466: if (!version_matches(method, version)) { coleenp@4466: // The method was redefined, accurate line number information isn't available coleenp@4466: java_lang_StackTraceElement::set_fileName(element(), NULL); coleenp@4466: java_lang_StackTraceElement::set_lineNumber(element(), -1); duke@435: } else { coleenp@4466: // Fill in source file name and line number. coleenp@4466: Symbol* source = holder->source_file_name(); coleenp@4466: if (ShowHiddenFrames && source == NULL) coleenp@4466: source = vmSymbols::unknown_class_name(); coleenp@4466: oop filename = StringTable::intern(source, CHECK_0); coleenp@4466: java_lang_StackTraceElement::set_fileName(element(), filename); coleenp@4466: coleenp@4466: int line_number = get_line_number(method, bci); coleenp@4466: java_lang_StackTraceElement::set_lineNumber(element(), line_number); duke@435: } duke@435: return element(); duke@435: } duke@435: coleenp@4466: oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { coleenp@4466: Handle mirror (THREAD, method->method_holder()->java_mirror()); coleenp@4466: int method_id = method->method_idnum(); coleenp@4466: return create(mirror, method_id, method->constants()->version(), bci, THREAD); coleenp@4466: } duke@435: duke@435: void java_lang_reflect_AccessibleObject::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); jrose@567: compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); duke@435: } duke@435: duke@435: jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return (jboolean) reflect->bool_field(override_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->bool_field_put(override_offset, (int) value); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::reflect_Method_klass(); jrose@567: compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); jrose@567: compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); jrose@567: compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); jrose@567: compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); jrose@567: compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); jrose@567: compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); jrose@567: compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); duke@435: // The generic signature and annotations fields are only present in 1.5 duke@435: signature_offset = -1; duke@435: annotations_offset = -1; duke@435: parameter_annotations_offset = -1; duke@435: annotation_default_offset = -1; stefank@4393: type_annotations_offset = -1; jrose@567: compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); jrose@567: compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); jrose@567: compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); jrose@567: compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); stefank@4393: compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); duke@435: } duke@435: duke@435: Handle java_lang_reflect_Method::create(TRAPS) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4037: Klass* klass = SystemDictionary::reflect_Method_klass(); duke@435: // This class is eagerly initialized during VM initialization, since we keep a refence duke@435: // to one of the methods coleenp@4037: assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); coleenp@4037: return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::clazz(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return reflect->obj_field(clazz_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->obj_field_put(clazz_offset, value); duke@435: } duke@435: duke@435: int java_lang_reflect_Method::slot(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return reflect->int_field(slot_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_slot(oop reflect, int value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->int_field_put(slot_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::name(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return method->obj_field(name_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_name(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: method->obj_field_put(name_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::return_type(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return method->obj_field(returnType_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_return_type(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: method->obj_field_put(returnType_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::parameter_types(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return method->obj_field(parameterTypes_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: method->obj_field_put(parameterTypes_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::exception_types(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return method->obj_field(exceptionTypes_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_exception_types(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: method->obj_field_put(exceptionTypes_offset, value); duke@435: } duke@435: duke@435: int java_lang_reflect_Method::modifiers(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return method->int_field(modifiers_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_modifiers(oop method, int value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: method->int_field_put(modifiers_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Method::has_signature_field() { duke@435: return (signature_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::signature(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_signature_field(), "signature field must be present"); duke@435: return method->obj_field(signature_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_signature(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_signature_field(), "signature field must be present"); duke@435: method->obj_field_put(signature_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Method::has_annotations_field() { duke@435: return (annotations_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::annotations(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotations_field(), "annotations field must be present"); duke@435: return method->obj_field(annotations_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_annotations(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotations_field(), "annotations field must be present"); duke@435: method->obj_field_put(annotations_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Method::has_parameter_annotations_field() { duke@435: return (parameter_annotations_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::parameter_annotations(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_parameter_annotations_field(), "parameter annotations field must be present"); duke@435: return method->obj_field(parameter_annotations_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_parameter_annotations_field(), "parameter annotations field must be present"); duke@435: method->obj_field_put(parameter_annotations_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Method::has_annotation_default_field() { duke@435: return (annotation_default_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Method::annotation_default(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotation_default_field(), "annotation default field must be present"); duke@435: return method->obj_field(annotation_default_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotation_default_field(), "annotation default field must be present"); duke@435: method->obj_field_put(annotation_default_offset, value); duke@435: } duke@435: stefank@4393: bool java_lang_reflect_Method::has_type_annotations_field() { stefank@4393: return (type_annotations_offset >= 0); stefank@4393: } stefank@4393: stefank@4393: oop java_lang_reflect_Method::type_annotations(oop method) { stefank@4393: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); stefank@4393: assert(has_type_annotations_field(), "type_annotations field must be present"); stefank@4393: return method->obj_field(type_annotations_offset); stefank@4393: } stefank@4393: stefank@4393: void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { stefank@4393: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); stefank@4393: assert(has_type_annotations_field(), "type_annotations field must be present"); stefank@4393: method->obj_field_put(type_annotations_offset, value); stefank@4393: } stefank@4393: duke@435: void java_lang_reflect_Constructor::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::reflect_Constructor_klass(); jrose@567: compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); jrose@567: compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); jrose@567: compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); jrose@567: compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); jrose@567: compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); duke@435: // The generic signature and annotations fields are only present in 1.5 duke@435: signature_offset = -1; duke@435: annotations_offset = -1; duke@435: parameter_annotations_offset = -1; stefank@4393: type_annotations_offset = -1; jrose@567: compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); jrose@567: compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); jrose@567: compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); stefank@4393: compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); duke@435: } duke@435: duke@435: Handle java_lang_reflect_Constructor::create(TRAPS) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@2497: Symbol* name = vmSymbols::java_lang_reflect_Constructor(); coleenp@4037: Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); duke@435: instanceKlassHandle klass (THREAD, k); duke@435: // Ensure it is initialized duke@435: klass->initialize(CHECK_NH); duke@435: return klass->allocate_instance_handle(CHECK_NH); duke@435: } duke@435: duke@435: oop java_lang_reflect_Constructor::clazz(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return reflect->obj_field(clazz_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->obj_field_put(clazz_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Constructor::parameter_types(oop constructor) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return constructor->obj_field(parameterTypes_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: constructor->obj_field_put(parameterTypes_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Constructor::exception_types(oop constructor) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return constructor->obj_field(exceptionTypes_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: constructor->obj_field_put(exceptionTypes_offset, value); duke@435: } duke@435: duke@435: int java_lang_reflect_Constructor::slot(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return reflect->int_field(slot_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->int_field_put(slot_offset, value); duke@435: } duke@435: duke@435: int java_lang_reflect_Constructor::modifiers(oop constructor) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return constructor->int_field(modifiers_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: constructor->int_field_put(modifiers_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Constructor::has_signature_field() { duke@435: return (signature_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Constructor::signature(oop constructor) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_signature_field(), "signature field must be present"); duke@435: return constructor->obj_field(signature_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_signature_field(), "signature field must be present"); duke@435: constructor->obj_field_put(signature_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Constructor::has_annotations_field() { duke@435: return (annotations_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Constructor::annotations(oop constructor) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotations_field(), "annotations field must be present"); duke@435: return constructor->obj_field(annotations_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotations_field(), "annotations field must be present"); duke@435: constructor->obj_field_put(annotations_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Constructor::has_parameter_annotations_field() { duke@435: return (parameter_annotations_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Constructor::parameter_annotations(oop method) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_parameter_annotations_field(), "parameter annotations field must be present"); duke@435: return method->obj_field(parameter_annotations_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_parameter_annotations_field(), "parameter annotations field must be present"); duke@435: method->obj_field_put(parameter_annotations_offset, value); duke@435: } duke@435: stefank@4393: bool java_lang_reflect_Constructor::has_type_annotations_field() { stefank@4393: return (type_annotations_offset >= 0); stefank@4393: } stefank@4393: stefank@4393: oop java_lang_reflect_Constructor::type_annotations(oop constructor) { stefank@4393: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); stefank@4393: assert(has_type_annotations_field(), "type_annotations field must be present"); stefank@4393: return constructor->obj_field(type_annotations_offset); stefank@4393: } stefank@4393: stefank@4393: void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { stefank@4393: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); stefank@4393: assert(has_type_annotations_field(), "type_annotations field must be present"); stefank@4393: constructor->obj_field_put(type_annotations_offset, value); stefank@4393: } stefank@4393: duke@435: void java_lang_reflect_Field::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::reflect_Field_klass(); jrose@567: compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); jrose@567: compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); jrose@567: compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); jrose@567: compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); jrose@567: compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); duke@435: // The generic signature and annotations fields are only present in 1.5 duke@435: signature_offset = -1; duke@435: annotations_offset = -1; stefank@4393: type_annotations_offset = -1; jrose@567: compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); jrose@567: compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); stefank@4393: compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); duke@435: } duke@435: duke@435: Handle java_lang_reflect_Field::create(TRAPS) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@2497: Symbol* name = vmSymbols::java_lang_reflect_Field(); coleenp@4037: Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); duke@435: instanceKlassHandle klass (THREAD, k); duke@435: // Ensure it is initialized duke@435: klass->initialize(CHECK_NH); duke@435: return klass->allocate_instance_handle(CHECK_NH); duke@435: } duke@435: duke@435: oop java_lang_reflect_Field::clazz(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return reflect->obj_field(clazz_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->obj_field_put(clazz_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Field::name(oop field) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return field->obj_field(name_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_name(oop field, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: field->obj_field_put(name_offset, value); duke@435: } duke@435: duke@435: oop java_lang_reflect_Field::type(oop field) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return field->obj_field(type_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_type(oop field, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: field->obj_field_put(type_offset, value); duke@435: } duke@435: duke@435: int java_lang_reflect_Field::slot(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return reflect->int_field(slot_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_slot(oop reflect, int value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: reflect->int_field_put(slot_offset, value); duke@435: } duke@435: duke@435: int java_lang_reflect_Field::modifiers(oop field) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: return field->int_field(modifiers_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_modifiers(oop field, int value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: field->int_field_put(modifiers_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Field::has_signature_field() { duke@435: return (signature_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Field::signature(oop field) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_signature_field(), "signature field must be present"); duke@435: return field->obj_field(signature_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_signature(oop field, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_signature_field(), "signature field must be present"); duke@435: field->obj_field_put(signature_offset, value); duke@435: } duke@435: duke@435: bool java_lang_reflect_Field::has_annotations_field() { duke@435: return (annotations_offset >= 0); duke@435: } duke@435: duke@435: oop java_lang_reflect_Field::annotations(oop field) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotations_field(), "annotations field must be present"); duke@435: return field->obj_field(annotations_offset); duke@435: } duke@435: duke@435: void java_lang_reflect_Field::set_annotations(oop field, oop value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); duke@435: assert(has_annotations_field(), "annotations field must be present"); duke@435: field->obj_field_put(annotations_offset, value); duke@435: } duke@435: stefank@4393: bool java_lang_reflect_Field::has_type_annotations_field() { stefank@4393: return (type_annotations_offset >= 0); stefank@4393: } stefank@4393: stefank@4393: oop java_lang_reflect_Field::type_annotations(oop field) { stefank@4393: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); stefank@4393: assert(has_type_annotations_field(), "type_annotations field must be present"); stefank@4393: return field->obj_field(type_annotations_offset); stefank@4393: } stefank@4393: stefank@4393: void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { stefank@4393: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); stefank@4393: assert(has_type_annotations_field(), "type_annotations field must be present"); stefank@4393: field->obj_field_put(type_annotations_offset, value); stefank@4393: } duke@435: duke@435: void sun_reflect_ConstantPool::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::reflect_ConstantPool_klass(); duke@435: // This null test can be removed post beta duke@435: if (k != NULL) { coleenp@4037: // The field is called ConstantPool* in the sun.reflect.ConstantPool class. coleenp@4037: compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); duke@435: } duke@435: } duke@435: coleenp@4398: void java_lang_reflect_Parameter::compute_offsets() { coleenp@4398: Klass* k = SystemDictionary::reflect_Parameter_klass(); coleenp@4398: if(NULL != k) { coleenp@4398: compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); coleenp@4398: compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); coleenp@4398: compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); coleenp@4398: compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); coleenp@4398: } coleenp@4398: } coleenp@4398: coleenp@4398: Handle java_lang_reflect_Parameter::create(TRAPS) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: Symbol* name = vmSymbols::java_lang_reflect_Parameter(); coleenp@4398: Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); coleenp@4398: instanceKlassHandle klass (THREAD, k); coleenp@4398: // Ensure it is initialized coleenp@4398: klass->initialize(CHECK_NH); coleenp@4398: return klass->allocate_instance_handle(CHECK_NH); coleenp@4398: } coleenp@4398: coleenp@4398: oop java_lang_reflect_Parameter::name(oop param) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: return param->obj_field(name_offset); coleenp@4398: } coleenp@4398: coleenp@4398: void java_lang_reflect_Parameter::set_name(oop param, oop value) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: param->obj_field_put(name_offset, value); coleenp@4398: } coleenp@4398: coleenp@4398: int java_lang_reflect_Parameter::modifiers(oop param) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: return param->int_field(modifiers_offset); coleenp@4398: } coleenp@4398: coleenp@4398: void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: param->int_field_put(modifiers_offset, value); coleenp@4398: } coleenp@4398: coleenp@4398: int java_lang_reflect_Parameter::index(oop param) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: return param->int_field(index_offset); coleenp@4398: } coleenp@4398: coleenp@4398: void java_lang_reflect_Parameter::set_index(oop param, int value) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: param->int_field_put(index_offset, value); coleenp@4398: } coleenp@4398: coleenp@4398: oop java_lang_reflect_Parameter::executable(oop param) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: return param->obj_field(executable_offset); coleenp@4398: } coleenp@4398: coleenp@4398: void java_lang_reflect_Parameter::set_executable(oop param, oop value) { coleenp@4398: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4398: param->obj_field_put(executable_offset, value); coleenp@4398: } coleenp@4398: duke@435: duke@435: Handle sun_reflect_ConstantPool::create(TRAPS) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4037: Klass* k = SystemDictionary::reflect_ConstantPool_klass(); duke@435: instanceKlassHandle klass (THREAD, k); duke@435: // Ensure it is initialized duke@435: klass->initialize(CHECK_NH); duke@435: return klass->allocate_instance_handle(CHECK_NH); duke@435: } duke@435: duke@435: coleenp@4037: void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4037: oop mirror = value->pool_holder()->java_mirror(); coleenp@4037: // Save the mirror to get back the constant pool. coleenp@4037: reflect->obj_field_put(_oop_offset, mirror); duke@435: } duke@435: coleenp@4037: ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { duke@435: assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); coleenp@4037: coleenp@4037: oop mirror = reflect->obj_field(_oop_offset); coleenp@4037: Klass* k = java_lang_Class::as_Klass(mirror); coleenp@4037: assert(k->oop_is_instance(), "Must be"); coleenp@4037: coleenp@4037: // Get the constant pool back from the klass. Since class redefinition coleenp@4037: // merges the new constant pool into the old, this is essentially the coleenp@4037: // same constant pool as the original. If constant pool merging is coleenp@4037: // no longer done in the future, this will have to change to save coleenp@4037: // the original. coleenp@4037: return InstanceKlass::cast(k)->constants(); duke@435: } duke@435: duke@435: void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); duke@435: // This null test can be removed post beta duke@435: if (k != NULL) { jrose@567: compute_offset(_base_offset, k, duke@435: vmSymbols::base_name(), vmSymbols::object_signature()); duke@435: } duke@435: } duke@435: jrose@567: oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { coleenp@4037: Klass* k = SystemDictionary::box_klass(type); jrose@567: if (k == NULL) return NULL; jrose@567: instanceKlassHandle h (THREAD, k); jrose@567: if (!h->is_initialized()) h->initialize(CHECK_0); jrose@567: return h->allocate_instance(THREAD); duke@435: } duke@435: duke@435: duke@435: oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { jrose@567: oop box = initialize_and_allocate(type, CHECK_0); jrose@567: if (box == NULL) return NULL; duke@435: switch (type) { duke@435: case T_BOOLEAN: duke@435: box->bool_field_put(value_offset, value->z); duke@435: break; duke@435: case T_CHAR: duke@435: box->char_field_put(value_offset, value->c); duke@435: break; duke@435: case T_FLOAT: duke@435: box->float_field_put(value_offset, value->f); duke@435: break; duke@435: case T_DOUBLE: kvn@600: box->double_field_put(long_value_offset, value->d); duke@435: break; duke@435: case T_BYTE: duke@435: box->byte_field_put(value_offset, value->b); duke@435: break; duke@435: case T_SHORT: duke@435: box->short_field_put(value_offset, value->s); duke@435: break; duke@435: case T_INT: duke@435: box->int_field_put(value_offset, value->i); duke@435: break; duke@435: case T_LONG: kvn@600: box->long_field_put(long_value_offset, value->j); duke@435: break; duke@435: default: duke@435: return NULL; duke@435: } duke@435: return box; duke@435: } duke@435: duke@435: jrose@567: BasicType java_lang_boxing_object::basic_type(oop box) { jrose@567: if (box == NULL) return T_ILLEGAL; jrose@567: BasicType type = SystemDictionary::box_klass_type(box->klass()); jrose@567: if (type == T_OBJECT) // 'unknown' value returned by SD::bkt jrose@567: return T_ILLEGAL; jrose@567: return type; jrose@567: } jrose@567: jrose@567: duke@435: BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { jrose@567: BasicType type = SystemDictionary::box_klass_type(box->klass()); jrose@567: switch (type) { jrose@567: case T_BOOLEAN: duke@435: value->z = box->bool_field(value_offset); jrose@567: break; jrose@567: case T_CHAR: duke@435: value->c = box->char_field(value_offset); jrose@567: break; jrose@567: case T_FLOAT: duke@435: value->f = box->float_field(value_offset); jrose@567: break; jrose@567: case T_DOUBLE: kvn@600: value->d = box->double_field(long_value_offset); jrose@567: break; jrose@567: case T_BYTE: duke@435: value->b = box->byte_field(value_offset); jrose@567: break; jrose@567: case T_SHORT: duke@435: value->s = box->short_field(value_offset); jrose@567: break; jrose@567: case T_INT: duke@435: value->i = box->int_field(value_offset); jrose@567: break; jrose@567: case T_LONG: kvn@600: value->j = box->long_field(long_value_offset); jrose@567: break; jrose@567: default: jrose@567: return T_ILLEGAL; jrose@567: } // end switch jrose@567: return type; duke@435: } duke@435: duke@435: duke@435: BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { jrose@567: BasicType type = SystemDictionary::box_klass_type(box->klass()); jrose@567: switch (type) { jrose@567: case T_BOOLEAN: duke@435: box->bool_field_put(value_offset, value->z); jrose@567: break; jrose@567: case T_CHAR: duke@435: box->char_field_put(value_offset, value->c); jrose@567: break; jrose@567: case T_FLOAT: duke@435: box->float_field_put(value_offset, value->f); jrose@567: break; jrose@567: case T_DOUBLE: kvn@600: box->double_field_put(long_value_offset, value->d); jrose@567: break; jrose@567: case T_BYTE: duke@435: box->byte_field_put(value_offset, value->b); jrose@567: break; jrose@567: case T_SHORT: duke@435: box->short_field_put(value_offset, value->s); jrose@567: break; jrose@567: case T_INT: duke@435: box->int_field_put(value_offset, value->i); jrose@567: break; jrose@567: case T_LONG: kvn@600: box->long_field_put(long_value_offset, value->j); jrose@567: break; jrose@567: default: jrose@567: return T_ILLEGAL; jrose@567: } // end switch jrose@567: return type; duke@435: } duke@435: duke@435: jrose@1100: void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { jrose@1100: switch (type) { jrose@1100: case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; jrose@1100: case T_CHAR: st->print("%d", value->c); break; jrose@1100: case T_BYTE: st->print("%d", value->b); break; jrose@1100: case T_SHORT: st->print("%d", value->s); break; jrose@1100: case T_INT: st->print("%d", value->i); break; jrose@1100: case T_LONG: st->print(INT64_FORMAT, value->j); break; jrose@1100: case T_FLOAT: st->print("%f", value->f); break; jrose@1100: case T_DOUBLE: st->print("%lf", value->d); break; jrose@1100: default: st->print("type %d?", type); break; jrose@1100: } jrose@1100: } jrose@1100: jrose@1100: duke@435: // Support for java_lang_ref_Reference coleenp@4037: HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); coleenp@4037: address addr = ik->static_field_addr(static_lock_offset); coleenp@4037: return (HeapWord*) addr; coleenp@4037: } coleenp@4037: coleenp@548: oop java_lang_ref_Reference::pending_list_lock() { coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); never@2658: address addr = ik->static_field_addr(static_lock_offset); coleenp@548: if (UseCompressedOops) { coleenp@548: return oopDesc::load_decode_heap_oop((narrowOop *)addr); coleenp@548: } else { coleenp@548: return oopDesc::load_decode_heap_oop((oop*)addr); coleenp@548: } duke@435: } duke@435: coleenp@548: HeapWord *java_lang_ref_Reference::pending_list_addr() { coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); never@2658: address addr = ik->static_field_addr(static_pending_offset); coleenp@548: // XXX This might not be HeapWord aligned, almost rather be char *. coleenp@548: return (HeapWord*)addr; duke@435: } duke@435: coleenp@548: oop java_lang_ref_Reference::pending_list() { coleenp@548: char *addr = (char *)pending_list_addr(); coleenp@548: if (UseCompressedOops) { coleenp@548: return oopDesc::load_decode_heap_oop((narrowOop *)addr); coleenp@548: } else { coleenp@548: return oopDesc::load_decode_heap_oop((oop*)addr); coleenp@548: } duke@435: } duke@435: duke@435: duke@435: // Support for java_lang_ref_SoftReference duke@435: duke@435: jlong java_lang_ref_SoftReference::timestamp(oop ref) { duke@435: return ref->long_field(timestamp_offset); duke@435: } duke@435: duke@435: jlong java_lang_ref_SoftReference::clock() { coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); never@2658: jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); never@2658: return *offset; duke@435: } duke@435: duke@435: void java_lang_ref_SoftReference::set_clock(jlong value) { coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); never@2658: jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); never@2658: *offset = value; duke@435: } duke@435: duke@435: jrose@2639: // Support for java_lang_invoke_MethodHandle jrose@2639: jrose@2639: int java_lang_invoke_MethodHandle::_type_offset; twisti@3969: int java_lang_invoke_MethodHandle::_form_offset; jrose@2639: jrose@2639: int java_lang_invoke_MemberName::_clazz_offset; jrose@2639: int java_lang_invoke_MemberName::_name_offset; jrose@2639: int java_lang_invoke_MemberName::_type_offset; jrose@2639: int java_lang_invoke_MemberName::_flags_offset; jrose@2639: int java_lang_invoke_MemberName::_vmtarget_offset; coleenp@4037: int java_lang_invoke_MemberName::_vmloader_offset; jrose@2639: int java_lang_invoke_MemberName::_vmindex_offset; jrose@2639: twisti@3969: int java_lang_invoke_LambdaForm::_vmentry_offset; never@3105: jrose@2639: void java_lang_invoke_MethodHandle::compute_offsets() { coleenp@4037: Klass* klass_oop = SystemDictionary::MethodHandle_klass(); never@3137: if (klass_oop != NULL && EnableInvokeDynamic) { twisti@3969: compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); twisti@3969: compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); twisti@3969: if (_form_offset == 0) { twisti@3969: EnableInvokeDynamic = false; twisti@3969: } jrose@1145: } jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MemberName::compute_offsets() { coleenp@4037: Klass* klass_oop = SystemDictionary::MemberName_klass(); never@3137: if (klass_oop != NULL && EnableInvokeDynamic) { never@3137: compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); never@3137: compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); never@3137: compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); never@3137: compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); never@3137: MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); jrose@1145: } jrose@1145: } jrose@1145: twisti@3969: void java_lang_invoke_LambdaForm::compute_offsets() { coleenp@4037: Klass* klass_oop = SystemDictionary::LambdaForm_klass(); twisti@3969: if (klass_oop != NULL && EnableInvokeDynamic) { twisti@3969: compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); jrose@1145: } jrose@1145: } jrose@1145: jrose@2639: oop java_lang_invoke_MethodHandle::type(oop mh) { jrose@1145: return mh->obj_field(_type_offset); jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { jrose@1145: mh->obj_field_put(_type_offset, mtype); jrose@1145: } jrose@1145: twisti@3969: oop java_lang_invoke_MethodHandle::form(oop mh) { twisti@3969: assert(_form_offset != 0, ""); twisti@3969: return mh->obj_field(_form_offset); jrose@1145: } jrose@1145: twisti@3969: void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { twisti@3969: assert(_form_offset != 0, ""); twisti@3969: mh->obj_field_put(_form_offset, lform); jrose@1145: } jrose@1145: jrose@1145: /// MemberName accessors jrose@1145: jrose@2639: oop java_lang_invoke_MemberName::clazz(oop mname) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: return mname->obj_field(_clazz_offset); jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: mname->obj_field_put(_clazz_offset, clazz); jrose@1145: } jrose@1145: jrose@2639: oop java_lang_invoke_MemberName::name(oop mname) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: return mname->obj_field(_name_offset); jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MemberName::set_name(oop mname, oop name) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: mname->obj_field_put(_name_offset, name); jrose@1145: } jrose@1145: jrose@2639: oop java_lang_invoke_MemberName::type(oop mname) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: return mname->obj_field(_type_offset); jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MemberName::set_type(oop mname, oop type) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: mname->obj_field_put(_type_offset, type); jrose@1145: } jrose@1145: jrose@2639: int java_lang_invoke_MemberName::flags(oop mname) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: return mname->int_field(_flags_offset); jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { jrose@1145: assert(is_instance(mname), "wrong type"); jrose@1145: mname->int_field_put(_flags_offset, flags); jrose@1145: } jrose@1145: coleenp@4037: Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { jrose@1145: assert(is_instance(mname), "wrong type"); coleenp@4037: return (Metadata*)mname->address_field(_vmtarget_offset); jrose@1145: } jrose@1145: sspitsyn@4965: #if INCLUDE_JVMTI sspitsyn@4965: // Can be executed on VM thread only sspitsyn@4965: void java_lang_invoke_MemberName::adjust_vmtarget(oop mname, Metadata* ref) { sspitsyn@4965: assert((is_instance(mname) && (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0), "wrong type"); sspitsyn@4965: assert(Thread::current()->is_VM_thread(), "not VM thread"); sspitsyn@4965: mname->address_field_put(_vmtarget_offset, (address)ref); sspitsyn@4965: } sspitsyn@4965: #endif // INCLUDE_JVMTI sspitsyn@4965: coleenp@4037: void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { jrose@1145: assert(is_instance(mname), "wrong type"); twisti@3969: // check the type of the vmtarget coleenp@4304: oop dependency = NULL; twisti@3969: if (ref != NULL) { twisti@3969: switch (flags(mname) & (MN_IS_METHOD | twisti@3969: MN_IS_CONSTRUCTOR | twisti@3969: MN_IS_FIELD)) { twisti@3969: case MN_IS_METHOD: twisti@3969: case MN_IS_CONSTRUCTOR: twisti@3969: assert(ref->is_method(), "should be a method"); coleenp@4304: dependency = ((Method*)ref)->method_holder()->java_mirror(); twisti@3969: break; twisti@3969: case MN_IS_FIELD: twisti@3969: assert(ref->is_klass(), "should be a class"); coleenp@4304: dependency = ((Klass*)ref)->java_mirror(); twisti@3969: break; twisti@3969: default: twisti@3969: ShouldNotReachHere(); twisti@3969: } twisti@3969: } coleenp@4037: mname->address_field_put(_vmtarget_offset, (address)ref); coleenp@4304: // Add a reference to the loader (actually mirror because anonymous classes will not have coleenp@4304: // distinct loaders) to ensure the metadata is kept alive coleenp@4304: // This mirror may be different than the one in clazz field. coleenp@4304: mname->obj_field_put(_vmloader_offset, dependency); jrose@1145: } jrose@1145: twisti@3969: intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { jrose@1145: assert(is_instance(mname), "wrong type"); twisti@3969: return (intptr_t) mname->address_field(_vmindex_offset); jrose@1145: } jrose@1145: twisti@3969: void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { jrose@1145: assert(is_instance(mname), "wrong type"); twisti@3969: mname->address_field_put(_vmindex_offset, (address) index); jrose@1145: } jrose@1145: twisti@3969: oop java_lang_invoke_LambdaForm::vmentry(oop lform) { twisti@3969: assert(is_instance(lform), "wrong type"); twisti@3969: return lform->obj_field(_vmentry_offset); jrose@1145: } jrose@1145: jrose@1145: jrose@2639: // Support for java_lang_invoke_MethodType jrose@2639: jrose@2639: int java_lang_invoke_MethodType::_rtype_offset; jrose@2639: int java_lang_invoke_MethodType::_ptypes_offset; jrose@2639: jrose@2639: void java_lang_invoke_MethodType::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::MethodType_klass(); jrose@1145: if (k != NULL) { jrose@1145: compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); jrose@1145: compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); jrose@1145: } jrose@1145: } jrose@1145: jrose@2639: void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { jrose@1145: st->print("("); jrose@1145: objArrayOop pts = ptypes(mt); jrose@1145: for (int i = 0, limit = pts->length(); i < limit; i++) { jrose@1145: java_lang_Class::print_signature(pts->obj_at(i), st); jrose@1145: } jrose@1145: st->print(")"); jrose@1145: java_lang_Class::print_signature(rtype(mt), st); jrose@1145: } jrose@1145: jrose@2639: Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { jrose@1145: ResourceMark rm; jrose@1145: stringStream buffer(128); jrose@1145: print_signature(mt, &buffer); jrose@1145: const char* sigstr = buffer.base(); jrose@1145: int siglen = (int) buffer.size(); coleenp@2497: Symbol *name; coleenp@2497: if (!intern_if_not_found) { coleenp@2497: name = SymbolTable::probe(sigstr, siglen); coleenp@2497: } else { coleenp@2497: name = SymbolTable::new_symbol(sigstr, siglen, THREAD); coleenp@2497: } coleenp@2497: return name; jrose@1145: } jrose@1145: jrose@2982: bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { twisti@3969: if (mt1 == mt2) twisti@3969: return true; jrose@2982: if (rtype(mt1) != rtype(mt2)) jrose@2982: return false; jrose@2982: if (ptype_count(mt1) != ptype_count(mt2)) jrose@2982: return false; jrose@2982: for (int i = ptype_count(mt1) - 1; i >= 0; i--) { jrose@2982: if (ptype(mt1, i) != ptype(mt2, i)) jrose@2982: return false; jrose@2982: } jrose@2982: return true; jrose@2982: } jrose@2982: jrose@2639: oop java_lang_invoke_MethodType::rtype(oop mt) { jrose@1145: assert(is_instance(mt), "must be a MethodType"); jrose@1145: return mt->obj_field(_rtype_offset); jrose@1145: } jrose@1145: jrose@2639: objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { jrose@1145: assert(is_instance(mt), "must be a MethodType"); jrose@1145: return (objArrayOop) mt->obj_field(_ptypes_offset); jrose@1145: } jrose@1145: jrose@2639: oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { jrose@1145: return ptypes(mt)->obj_at(idx); jrose@1145: } jrose@1145: jrose@2639: int java_lang_invoke_MethodType::ptype_count(oop mt) { twisti@1568: return ptypes(mt)->length(); twisti@1568: } twisti@1568: twisti@3969: int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { twisti@3969: objArrayOop pts = ptypes(mt); twisti@3969: int count = pts->length(); twisti@3969: int slots = 0; twisti@3969: for (int i = 0; i < count; i++) { twisti@3969: BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i)); twisti@3969: slots += type2size[bt]; jrose@1145: } twisti@3969: return slots; jrose@1145: } jrose@1145: twisti@3969: int java_lang_invoke_MethodType::rtype_slot_count(oop mt) { twisti@3969: BasicType bt = java_lang_Class::as_BasicType(rtype(mt)); twisti@3969: return type2size[bt]; jrose@2148: } jrose@2148: jrose@1145: jrose@2639: // Support for java_lang_invoke_CallSite jrose@2639: jrose@2639: int java_lang_invoke_CallSite::_target_offset; jrose@2639: jrose@2639: void java_lang_invoke_CallSite::compute_offsets() { jrose@1161: if (!EnableInvokeDynamic) return; coleenp@4037: Klass* k = SystemDictionary::CallSite_klass(); jrose@1161: if (k != NULL) { jrose@2639: compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); jrose@1161: } jrose@1161: } jrose@1161: jrose@1145: duke@435: // Support for java_security_AccessControlContext duke@435: duke@435: int java_security_AccessControlContext::_context_offset = 0; duke@435: int java_security_AccessControlContext::_privilegedContext_offset = 0; duke@435: int java_security_AccessControlContext::_isPrivileged_offset = 0; duke@435: duke@435: void java_security_AccessControlContext::compute_offsets() { duke@435: assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); duke@435: fieldDescriptor fd; coleenp@4037: InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); duke@435: duke@435: if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { duke@435: fatal("Invalid layout of java.security.AccessControlContext"); duke@435: } duke@435: _context_offset = fd.offset(); duke@435: duke@435: if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { duke@435: fatal("Invalid layout of java.security.AccessControlContext"); duke@435: } duke@435: _privilegedContext_offset = fd.offset(); duke@435: duke@435: if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { duke@435: fatal("Invalid layout of java.security.AccessControlContext"); duke@435: } duke@435: _isPrivileged_offset = fd.offset(); duke@435: } duke@435: duke@435: duke@435: oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { duke@435: assert(_isPrivileged_offset != 0, "offsets should have been initialized"); duke@435: // Ensure klass is initialized coleenp@4037: InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); duke@435: // Allocate result coleenp@4037: oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); duke@435: // Fill in values duke@435: result->obj_field_put(_context_offset, context()); duke@435: result->obj_field_put(_privilegedContext_offset, privileged_context()); duke@435: result->bool_field_put(_isPrivileged_offset, isPrivileged); duke@435: return result; duke@435: } duke@435: duke@435: duke@435: // Support for java_lang_ClassLoader coleenp@4037: never@3137: bool java_lang_ClassLoader::offsets_computed = false; coleenp@4037: int java_lang_ClassLoader::_loader_data_offset = -1; never@3137: int java_lang_ClassLoader::parallelCapable_offset = -1; never@3137: coleenp@4037: ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { coleenp@4037: assert(loader != NULL && loader->is_oop(), "loader must be oop"); coleenp@4037: return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); coleenp@4037: } coleenp@4037: coleenp@4037: ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { coleenp@4037: return *java_lang_ClassLoader::loader_data_addr(loader); coleenp@4037: } coleenp@4037: never@3137: void java_lang_ClassLoader::compute_offsets() { never@3137: assert(!offsets_computed, "offsets should be initialized only once"); never@3137: offsets_computed = true; never@3137: never@3137: // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, coleenp@4037: Klass* k1 = SystemDictionary::ClassLoader_klass(); never@3137: compute_optional_offset(parallelCapable_offset, never@3137: k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); coleenp@4037: coleenp@4037: CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); never@3137: } duke@435: duke@435: oop java_lang_ClassLoader::parent(oop loader) { twisti@3969: assert(is_instance(loader), "loader must be oop"); duke@435: return loader->obj_field(parent_offset); duke@435: } duke@435: twisti@3969: bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { twisti@3969: assert(is_instance(loader), "loader must be oop"); twisti@3969: assert(cl == NULL || is_instance(cl), "cl argument must be oop"); twisti@3969: oop acl = loader; twisti@3969: debug_only(jint loop_count = 0); twisti@3969: // This loop taken verbatim from ClassLoader.java: twisti@3969: do { twisti@3969: acl = parent(acl); twisti@3969: if (cl == acl) { twisti@3969: return true; twisti@3969: } twisti@3969: assert(++loop_count > 0, "loop_count overflow"); twisti@3969: } while (acl != NULL); twisti@3969: return false; twisti@3969: } twisti@3969: duke@435: never@3137: // For class loader classes, parallelCapable defined never@3137: // based on non-null field never@3137: // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it never@3137: bool java_lang_ClassLoader::parallelCapable(oop class_loader) { never@3137: if (!JDK_Version::is_gte_jdk17x_version() never@3137: || parallelCapable_offset == -1) { never@3137: // Default for backward compatibility is false never@3137: return false; never@3137: } never@3137: return (class_loader->obj_field(parallelCapable_offset) != NULL); never@3137: } never@3137: duke@435: bool java_lang_ClassLoader::is_trusted_loader(oop loader) { duke@435: // Fix for 4474172; see evaluation for more details duke@435: loader = non_reflection_class_loader(loader); duke@435: duke@435: oop cl = SystemDictionary::java_system_loader(); duke@435: while(cl != NULL) { duke@435: if (cl == loader) return true; duke@435: cl = parent(cl); duke@435: } duke@435: return false; duke@435: } duke@435: duke@435: oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { duke@435: if (loader != NULL) { duke@435: // See whether this is one of the class loaders associated with duke@435: // the generated bytecodes for reflection, and if so, "magically" duke@435: // delegate to its parent to prevent class loading from occurring duke@435: // in places where applications using reflection didn't expect it. coleenp@4037: Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); duke@435: // This might be null in non-1.4 JDKs duke@435: if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { duke@435: return parent(loader); duke@435: } duke@435: } duke@435: return loader; duke@435: } duke@435: duke@435: duke@435: // Support for java_lang_System never@2658: int java_lang_System::in_offset_in_bytes() { coleenp@4047: return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); duke@435: } duke@435: never@2658: never@2658: int java_lang_System::out_offset_in_bytes() { coleenp@4047: return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); duke@435: } duke@435: duke@435: duke@435: int java_lang_System::err_offset_in_bytes() { coleenp@4047: return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); duke@435: } duke@435: duke@435: duke@435: never@3137: int java_lang_Class::_klass_offset; never@3137: int java_lang_Class::_array_klass_offset; never@3137: int java_lang_Class::_oop_size_offset; never@3137: int java_lang_Class::_static_oop_field_count_offset; coleenp@4037: GrowableArray* java_lang_Class::_fixup_mirror_list = NULL; duke@435: int java_lang_Throwable::backtrace_offset; duke@435: int java_lang_Throwable::detailMessage_offset; duke@435: int java_lang_Throwable::cause_offset; duke@435: int java_lang_Throwable::stackTrace_offset; dholmes@3018: int java_lang_Throwable::static_unassigned_stacktrace_offset; duke@435: int java_lang_reflect_AccessibleObject::override_offset; duke@435: int java_lang_reflect_Method::clazz_offset; duke@435: int java_lang_reflect_Method::name_offset; duke@435: int java_lang_reflect_Method::returnType_offset; duke@435: int java_lang_reflect_Method::parameterTypes_offset; duke@435: int java_lang_reflect_Method::exceptionTypes_offset; duke@435: int java_lang_reflect_Method::slot_offset; duke@435: int java_lang_reflect_Method::modifiers_offset; duke@435: int java_lang_reflect_Method::signature_offset; duke@435: int java_lang_reflect_Method::annotations_offset; duke@435: int java_lang_reflect_Method::parameter_annotations_offset; duke@435: int java_lang_reflect_Method::annotation_default_offset; stefank@4393: int java_lang_reflect_Method::type_annotations_offset; duke@435: int java_lang_reflect_Constructor::clazz_offset; duke@435: int java_lang_reflect_Constructor::parameterTypes_offset; duke@435: int java_lang_reflect_Constructor::exceptionTypes_offset; duke@435: int java_lang_reflect_Constructor::slot_offset; duke@435: int java_lang_reflect_Constructor::modifiers_offset; duke@435: int java_lang_reflect_Constructor::signature_offset; duke@435: int java_lang_reflect_Constructor::annotations_offset; duke@435: int java_lang_reflect_Constructor::parameter_annotations_offset; stefank@4393: int java_lang_reflect_Constructor::type_annotations_offset; duke@435: int java_lang_reflect_Field::clazz_offset; duke@435: int java_lang_reflect_Field::name_offset; duke@435: int java_lang_reflect_Field::type_offset; duke@435: int java_lang_reflect_Field::slot_offset; duke@435: int java_lang_reflect_Field::modifiers_offset; duke@435: int java_lang_reflect_Field::signature_offset; duke@435: int java_lang_reflect_Field::annotations_offset; stefank@4393: int java_lang_reflect_Field::type_annotations_offset; coleenp@4398: int java_lang_reflect_Parameter::name_offset; coleenp@4398: int java_lang_reflect_Parameter::modifiers_offset; coleenp@4398: int java_lang_reflect_Parameter::index_offset; coleenp@4398: int java_lang_reflect_Parameter::executable_offset; duke@435: int java_lang_boxing_object::value_offset; kvn@600: int java_lang_boxing_object::long_value_offset; duke@435: int java_lang_ref_Reference::referent_offset; duke@435: int java_lang_ref_Reference::queue_offset; duke@435: int java_lang_ref_Reference::next_offset; duke@435: int java_lang_ref_Reference::discovered_offset; duke@435: int java_lang_ref_Reference::static_lock_offset; duke@435: int java_lang_ref_Reference::static_pending_offset; duke@435: int java_lang_ref_Reference::number_of_fake_oop_fields; duke@435: int java_lang_ref_SoftReference::timestamp_offset; duke@435: int java_lang_ref_SoftReference::static_clock_offset; duke@435: int java_lang_ClassLoader::parent_offset; duke@435: int java_lang_System::static_in_offset; duke@435: int java_lang_System::static_out_offset; duke@435: int java_lang_System::static_err_offset; duke@435: int java_lang_StackTraceElement::declaringClass_offset; duke@435: int java_lang_StackTraceElement::methodName_offset; duke@435: int java_lang_StackTraceElement::fileName_offset; duke@435: int java_lang_StackTraceElement::lineNumber_offset; duke@435: int java_lang_AssertionStatusDirectives::classes_offset; duke@435: int java_lang_AssertionStatusDirectives::classEnabled_offset; duke@435: int java_lang_AssertionStatusDirectives::packages_offset; duke@435: int java_lang_AssertionStatusDirectives::packageEnabled_offset; duke@435: int java_lang_AssertionStatusDirectives::deflt_offset; duke@435: int java_nio_Buffer::_limit_offset; duke@435: int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; coleenp@4037: int sun_reflect_ConstantPool::_oop_offset; duke@435: int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; duke@435: duke@435: duke@435: // Support for java_lang_StackTraceElement duke@435: duke@435: void java_lang_StackTraceElement::set_fileName(oop element, oop value) { duke@435: element->obj_field_put(fileName_offset, value); duke@435: } duke@435: duke@435: void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { duke@435: element->obj_field_put(declaringClass_offset, value); duke@435: } duke@435: duke@435: void java_lang_StackTraceElement::set_methodName(oop element, oop value) { duke@435: element->obj_field_put(methodName_offset, value); duke@435: } duke@435: duke@435: void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { duke@435: element->int_field_put(lineNumber_offset, value); duke@435: } duke@435: duke@435: duke@435: // Support for java Assertions - java_lang_AssertionStatusDirectives. duke@435: duke@435: void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { duke@435: o->obj_field_put(classes_offset, val); duke@435: } duke@435: duke@435: void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { duke@435: o->obj_field_put(classEnabled_offset, val); duke@435: } duke@435: duke@435: void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { duke@435: o->obj_field_put(packages_offset, val); duke@435: } duke@435: duke@435: void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { duke@435: o->obj_field_put(packageEnabled_offset, val); duke@435: } duke@435: duke@435: void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { duke@435: o->bool_field_put(deflt_offset, val); duke@435: } duke@435: duke@435: duke@435: // Support for intrinsification of java.nio.Buffer.checkIndex duke@435: int java_nio_Buffer::limit_offset() { duke@435: return _limit_offset; duke@435: } duke@435: duke@435: duke@435: void java_nio_Buffer::compute_offsets() { coleenp@4037: Klass* k = SystemDictionary::nio_Buffer_klass(); jrose@567: assert(k != NULL, "must be loaded in 1.4+"); jrose@567: compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); duke@435: } duke@435: duke@435: void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { duke@435: if (_owner_offset != 0) return; duke@435: duke@435: assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); duke@435: SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); coleenp@4037: Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); jrose@567: compute_offset(_owner_offset, k, duke@435: vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); duke@435: } duke@435: duke@435: oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { duke@435: assert(_owner_offset != 0, "Must be initialized"); duke@435: return obj->obj_field(_owner_offset); duke@435: } duke@435: duke@435: // Compute hard-coded offsets duke@435: // Invoked before SystemDictionary::initialize, so pre-loaded classes duke@435: // are not available to determine the offset_of_static_fields. duke@435: void JavaClasses::compute_hard_coded_offsets() { coleenp@548: const int x = heapOopSize; kvn@600: const int header = instanceOopDesc::base_offset_in_bytes(); duke@435: duke@435: // Throwable Class duke@435: java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; duke@435: java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; duke@435: java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; duke@435: java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; dholmes@3018: java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; duke@435: duke@435: // java_lang_boxing_object kvn@600: java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; kvn@600: java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); duke@435: duke@435: // java_lang_ref_Reference: duke@435: java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; duke@435: java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; duke@435: java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; duke@435: java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; duke@435: java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; duke@435: java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; duke@435: // Artificial fields for java_lang_ref_Reference duke@435: // The first field is for the discovered field added in 1.4 duke@435: java_lang_ref_Reference::number_of_fake_oop_fields = 1; duke@435: duke@435: // java_lang_ref_SoftReference Class kvn@600: java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); duke@435: // Don't multiply static fields because they are always in wordSize units duke@435: java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; duke@435: duke@435: // java_lang_ClassLoader duke@435: java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; duke@435: duke@435: // java_lang_System duke@435: java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; duke@435: java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; duke@435: java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; duke@435: duke@435: // java_lang_StackTraceElement duke@435: java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; duke@435: java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; duke@435: java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; duke@435: java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; duke@435: java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; duke@435: java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; duke@435: java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; duke@435: java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; duke@435: java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; duke@435: duke@435: } duke@435: duke@435: duke@435: // Compute non-hard-coded field offsets of all the classes in this file duke@435: void JavaClasses::compute_offsets() { never@3137: // java_lang_Class::compute_offsets was called earlier in bootstrap never@3137: java_lang_ClassLoader::compute_offsets(); duke@435: java_lang_Thread::compute_offsets(); duke@435: java_lang_ThreadGroup::compute_offsets(); twisti@2698: if (EnableInvokeDynamic) { jrose@2639: java_lang_invoke_MethodHandle::compute_offsets(); jrose@2639: java_lang_invoke_MemberName::compute_offsets(); twisti@3969: java_lang_invoke_LambdaForm::compute_offsets(); jrose@2639: java_lang_invoke_MethodType::compute_offsets(); jrose@2639: java_lang_invoke_CallSite::compute_offsets(); jrose@1161: } duke@435: java_security_AccessControlContext::compute_offsets(); duke@435: // Initialize reflection classes. The layouts of these classes duke@435: // changed with the new reflection implementation in JDK 1.4, and duke@435: // since the Universe doesn't know what JDK version it is until this duke@435: // point we defer computation of these offsets until now. duke@435: java_lang_reflect_AccessibleObject::compute_offsets(); duke@435: java_lang_reflect_Method::compute_offsets(); duke@435: java_lang_reflect_Constructor::compute_offsets(); duke@435: java_lang_reflect_Field::compute_offsets(); duke@435: if (JDK_Version::is_gte_jdk14x_version()) { duke@435: java_nio_Buffer::compute_offsets(); duke@435: } duke@435: if (JDK_Version::is_gte_jdk15x_version()) { duke@435: sun_reflect_ConstantPool::compute_offsets(); duke@435: sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); duke@435: } coleenp@4398: if (JDK_Version::is_jdk18x_version()) coleenp@4398: java_lang_reflect_Parameter::compute_offsets(); jrose@1145: jrose@1145: // generated interpreter code wants to know about the offsets we just computed: jrose@1145: AbstractAssembler::update_delayed_values(); duke@435: } duke@435: duke@435: #ifndef PRODUCT duke@435: duke@435: // These functions exist to assert the validity of hard-coded field offsets to guard duke@435: // against changes in the class files duke@435: duke@435: bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { duke@435: EXCEPTION_MARK; duke@435: fieldDescriptor fd; coleenp@2497: TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); coleenp@4037: Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); duke@435: instanceKlassHandle h_klass (THREAD, k); coleenp@2497: TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); coleenp@2497: TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); coleenp@2497: if (!h_klass->find_local_field(f_name, f_sig, &fd)) { duke@435: tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); duke@435: return false; duke@435: } duke@435: if (fd.is_static()) { duke@435: tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); duke@435: return false; duke@435: } duke@435: if (fd.offset() == hardcoded_offset ) { duke@435: return true; duke@435: } else { duke@435: tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", duke@435: klass_name, field_name, hardcoded_offset, fd.offset()); duke@435: return false; duke@435: } duke@435: } duke@435: duke@435: duke@435: bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { duke@435: EXCEPTION_MARK; duke@435: fieldDescriptor fd; coleenp@2497: TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); coleenp@4037: Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); duke@435: instanceKlassHandle h_klass (THREAD, k); coleenp@2497: TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); coleenp@2497: TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); coleenp@2497: if (!h_klass->find_local_field(f_name, f_sig, &fd)) { duke@435: tty->print_cr("Static field %s.%s not found", klass_name, field_name); duke@435: return false; duke@435: } duke@435: if (!fd.is_static()) { duke@435: tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); duke@435: return false; duke@435: } coleenp@4047: if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { duke@435: return true; duke@435: } else { coleenp@4047: 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()); duke@435: return false; duke@435: } duke@435: } duke@435: duke@435: jrose@567: bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { jrose@567: EXCEPTION_MARK; jrose@567: fieldDescriptor fd; coleenp@2497: TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); coleenp@4037: Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); jrose@567: instanceKlassHandle h_klass (THREAD, k); coleenp@2497: TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); coleenp@2497: TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); coleenp@2497: if (!h_klass->find_local_field(f_name, f_sig, &fd)) { jrose@567: tty->print_cr("Static field %s.%s not found", klass_name, field_name); jrose@567: return false; jrose@567: } jrose@567: if (!fd.is_static() || !fd.has_initial_value()) { jrose@567: tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); jrose@567: return false; jrose@567: } jrose@567: if (!fd.initial_value_tag().is_int()) { jrose@567: tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); jrose@567: return false; jrose@567: } jrose@567: jint field_value = fd.int_initial_value(); jrose@567: if (field_value == hardcoded_constant) { jrose@567: return true; jrose@567: } else { jrose@567: 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); jrose@567: return false; jrose@567: } jrose@567: } jrose@567: jrose@567: duke@435: // Check the hard-coded field offsets of all the classes in this file duke@435: duke@435: void JavaClasses::check_offsets() { duke@435: bool valid = true; coleenp@4037: HandleMark hm; duke@435: duke@435: #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ duke@435: valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) duke@435: kvn@600: #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ kvn@600: valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) kvn@600: duke@435: #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ duke@435: valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) duke@435: jrose@567: #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ jrose@567: valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) jrose@567: duke@435: // java.lang.String duke@435: duke@435: CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); kvn@3760: if (java_lang_String::has_offset_field()) { kvn@3760: CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); kvn@3760: CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); kvn@3760: } kvn@3760: if (java_lang_String::has_hash_field()) { kvn@3760: CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); kvn@3760: } duke@435: duke@435: // java.lang.Class duke@435: duke@435: // Fake fields duke@435: // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked duke@435: // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked duke@435: duke@435: // java.lang.Throwable duke@435: duke@435: CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); duke@435: CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); duke@435: CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); duke@435: CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); duke@435: duke@435: // Boxed primitive objects (java_lang_boxing_object) duke@435: duke@435: CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); duke@435: CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); duke@435: CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); kvn@600: CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); duke@435: CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); duke@435: CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); duke@435: CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); kvn@600: CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); duke@435: duke@435: // java.lang.ClassLoader duke@435: duke@435: CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); duke@435: duke@435: // java.lang.System duke@435: duke@435: CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); duke@435: CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); duke@435: CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); duke@435: duke@435: // java.lang.StackTraceElement duke@435: duke@435: CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); duke@435: CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); duke@435: CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); duke@435: CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); duke@435: duke@435: // java.lang.ref.Reference duke@435: duke@435: CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); duke@435: CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); duke@435: CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); duke@435: // Fake field duke@435: //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); duke@435: CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); duke@435: CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); duke@435: duke@435: // java.lang.ref.SoftReference duke@435: duke@435: CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); duke@435: CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); duke@435: duke@435: // java.lang.AssertionStatusDirectives duke@435: // duke@435: // The CheckAssertionStatusDirectives boolean can be removed from here and duke@435: // globals.hpp after the AssertionStatusDirectives class has been integrated duke@435: // into merlin "for some time." Without it, the vm will fail with early duke@435: // merlin builds. duke@435: duke@435: if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { duke@435: const char* nm = "java/lang/AssertionStatusDirectives"; duke@435: const char* sig = "[Ljava/lang/String;"; duke@435: CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); duke@435: CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); duke@435: CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); duke@435: CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); duke@435: CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); duke@435: } duke@435: duke@435: if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); duke@435: } duke@435: duke@435: #endif // PRODUCT duke@435: never@3137: int InjectedField::compute_offset() { coleenp@4037: Klass* klass_oop = klass(); coleenp@4037: for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { never@3137: if (!may_be_java && !fs.access_flags().is_internal()) { never@3137: // Only look at injected fields never@3137: continue; never@3137: } never@3137: if (fs.name() == name() && fs.signature() == signature()) { never@3137: return fs.offset(); never@3137: } never@3137: } never@3137: ResourceMark rm; coleenp@4037: tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); twisti@3969: #ifndef PRODUCT twisti@3969: klass_oop->print(); twisti@3969: tty->print_cr("all fields:"); coleenp@4037: for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { twisti@3969: tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); twisti@3969: } twisti@3969: #endif //PRODUCT never@3137: fatal("Invalid layout of preloaded class"); never@3137: return -1; never@3137: } never@3137: duke@435: void javaClasses_init() { duke@435: JavaClasses::compute_offsets(); duke@435: JavaClasses::check_offsets(); duke@435: FilteredFieldsMap::initialize(); // must be done after computing offsets. duke@435: }