| /* |
| * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP |
| #define SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP |
| |
| #include "classfile/javaClasses.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "oops/oopsHierarchy.hpp" |
| |
| void java_lang_String::set_coder(oop string, jbyte coder) { |
| assert(initialized && (coder_offset > 0), "Must be initialized"); |
| string->byte_field_put(coder_offset, coder); |
| } |
| |
| void java_lang_String::set_value_raw(oop string, typeArrayOop buffer) { |
| assert(initialized, "Must be initialized"); |
| string->obj_field_put_raw(value_offset, buffer); |
| } |
| void java_lang_String::set_value(oop string, typeArrayOop buffer) { |
| assert(initialized && (value_offset > 0), "Must be initialized"); |
| string->obj_field_put(value_offset, (oop)buffer); |
| } |
| void java_lang_String::set_hash(oop string, unsigned int hash) { |
| assert(initialized && (hash_offset > 0), "Must be initialized"); |
| string->int_field_put(hash_offset, hash); |
| } |
| |
| // Accessors |
| typeArrayOop java_lang_String::value(oop java_string) { |
| assert(initialized && (value_offset > 0), "Must be initialized"); |
| assert(is_instance(java_string), "must be java_string"); |
| return (typeArrayOop) java_string->obj_field(value_offset); |
| } |
| unsigned int java_lang_String::hash(oop java_string) { |
| assert(initialized && (hash_offset > 0), "Must be initialized"); |
| assert(is_instance(java_string), "must be java_string"); |
| return java_string->int_field(hash_offset); |
| } |
| bool java_lang_String::is_latin1(oop java_string) { |
| assert(initialized && (coder_offset > 0), "Must be initialized"); |
| assert(is_instance(java_string), "must be java_string"); |
| jbyte coder = java_string->byte_field(coder_offset); |
| assert(CompactStrings || coder == CODER_UTF16, "Must be UTF16 without CompactStrings"); |
| return coder == CODER_LATIN1; |
| } |
| int java_lang_String::length(oop java_string) { |
| assert(initialized, "Must be initialized"); |
| assert(is_instance(java_string), "must be java_string"); |
| typeArrayOop value_array = ((typeArrayOop)java_string->obj_field(value_offset)); |
| if (value_array == NULL) { |
| return 0; |
| } |
| int arr_length = value_array->length(); |
| if (!is_latin1(java_string)) { |
| assert((arr_length & 1) == 0, "should be even for UTF16 string"); |
| arr_length >>= 1; // convert number of bytes to number of elements |
| } |
| return arr_length; |
| } |
| |
| bool java_lang_String::is_instance_inlined(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::String_klass(); |
| } |
| |
| // Accessors |
| oop java_lang_ref_Reference::referent(oop ref) { |
| return ref->obj_field(referent_offset); |
| } |
| void java_lang_ref_Reference::set_referent(oop ref, oop value) { |
| ref->obj_field_put(referent_offset, value); |
| } |
| void java_lang_ref_Reference::set_referent_raw(oop ref, oop value) { |
| ref->obj_field_put_raw(referent_offset, value); |
| } |
| HeapWord* java_lang_ref_Reference::referent_addr(oop ref) { |
| return ref->obj_field_addr<HeapWord>(referent_offset); |
| } |
| oop java_lang_ref_Reference::next(oop ref) { |
| return ref->obj_field(next_offset); |
| } |
| void java_lang_ref_Reference::set_next(oop ref, oop value) { |
| ref->obj_field_put(next_offset, value); |
| } |
| void java_lang_ref_Reference::set_next_raw(oop ref, oop value) { |
| ref->obj_field_put_raw(next_offset, value); |
| } |
| HeapWord* java_lang_ref_Reference::next_addr(oop ref) { |
| return ref->obj_field_addr<HeapWord>(next_offset); |
| } |
| oop java_lang_ref_Reference::discovered(oop ref) { |
| return ref->obj_field(discovered_offset); |
| } |
| void java_lang_ref_Reference::set_discovered(oop ref, oop value) { |
| ref->obj_field_put(discovered_offset, value); |
| } |
| void java_lang_ref_Reference::set_discovered_raw(oop ref, oop value) { |
| ref->obj_field_put_raw(discovered_offset, value); |
| } |
| HeapWord* java_lang_ref_Reference::discovered_addr(oop ref) { |
| return ref->obj_field_addr<HeapWord>(discovered_offset); |
| } |
| |
| inline void java_lang_invoke_CallSite::set_target_volatile(oop site, oop target) { |
| site->obj_field_put_volatile(_target_offset, target); |
| } |
| |
| inline oop java_lang_invoke_CallSite::target(oop site) { |
| return site->obj_field(_target_offset); |
| } |
| |
| inline void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
| site->obj_field_put(_target_offset, target); |
| } |
| |
| inline bool java_lang_invoke_CallSite::is_instance(oop obj) { |
| return obj != NULL && is_subclass(obj->klass()); |
| } |
| |
| inline bool java_lang_invoke_MethodHandleNatives_CallSiteContext::is_instance(oop obj) { |
| return obj != NULL && is_subclass(obj->klass()); |
| } |
| |
| inline bool java_lang_invoke_MemberName::is_instance(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::MemberName_klass(); |
| } |
| |
| inline bool java_lang_invoke_ResolvedMethodName::is_instance(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::ResolvedMethodName_klass(); |
| } |
| |
| inline bool java_lang_invoke_MethodType::is_instance(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); |
| } |
| |
| inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) { |
| return obj != NULL && is_subclass(obj->klass()); |
| } |
| |
| inline bool java_lang_Class::is_instance(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); |
| } |
| |
| inline bool java_lang_invoke_DirectMethodHandle::is_instance(oop obj) { |
| return obj != NULL && is_subclass(obj->klass()); |
| } |
| |
| inline bool java_lang_Module::is_instance(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::Module_klass(); |
| } |
| |
| inline int Backtrace::merge_bci_and_version(int bci, int version) { |
| // only store u2 for version, checking for overflow. |
| if (version > USHRT_MAX || version < 0) version = USHRT_MAX; |
| assert((jushort)bci == bci, "bci should be short"); |
| return build_int_from_shorts(version, bci); |
| } |
| |
| inline int Backtrace::merge_mid_and_cpref(int mid, int cpref) { |
| // only store u2 for mid and cpref, checking for overflow. |
| assert((jushort)mid == mid, "mid should be short"); |
| assert((jushort)cpref == cpref, "cpref should be short"); |
| return build_int_from_shorts(cpref, mid); |
| } |
| |
| inline int Backtrace::bci_at(unsigned int merged) { |
| return extract_high_short_from_int(merged); |
| } |
| |
| inline int Backtrace::version_at(unsigned int merged) { |
| return extract_low_short_from_int(merged); |
| } |
| |
| inline int Backtrace::mid_at(unsigned int merged) { |
| return extract_high_short_from_int(merged); |
| } |
| |
| inline int Backtrace::cpref_at(unsigned int merged) { |
| return extract_low_short_from_int(merged); |
| } |
| |
| inline int Backtrace::get_line_number(const methodHandle& method, int bci) { |
| int line_number = 0; |
| if (method->is_native()) { |
| // Negative value different from -1 below, enabling Java code in |
| // class java.lang.StackTraceElement to distinguish "native" from |
| // "no LineNumberTable". JDK tests for -2. |
| line_number = -2; |
| } else { |
| // Returns -1 if no LineNumberTable, and otherwise actual line number |
| line_number = method->line_number_from_bci(bci); |
| if (line_number == -1 && ShowHiddenFrames) { |
| line_number = bci + 1000000; |
| } |
| } |
| return line_number; |
| } |
| |
| inline Symbol* Backtrace::get_source_file_name(InstanceKlass* holder, int version) { |
| // RedefineClasses() currently permits redefine operations to |
| // happen in parallel using a "last one wins" philosophy. That |
| // spec laxness allows the constant pool entry associated with |
| // the source_file_name_index for any older constant pool version |
| // to be unstable so we shouldn't try to use it. |
| if (holder->constants()->version() != version) { |
| return NULL; |
| } else { |
| return holder->source_file_name(); |
| } |
| } |
| |
| #endif // SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP |