238 lines
8.3 KiB
C++
238 lines
8.3 KiB
C++
/*
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP
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#define SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP
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#include "classfile/javaClasses.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/oopsHierarchy.hpp"
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void java_lang_String::set_coder(oop string, jbyte coder) {
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assert(initialized, "Must be initialized");
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if (coder_offset > 0) {
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string->byte_field_put(coder_offset, coder);
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}
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}
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void java_lang_String::set_value_raw(oop string, typeArrayOop buffer) {
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assert(initialized, "Must be initialized");
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string->obj_field_put_raw(value_offset, buffer);
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}
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void java_lang_String::set_value(oop string, typeArrayOop buffer) {
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assert(initialized && (value_offset > 0), "Must be initialized");
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string->obj_field_put(value_offset, (oop)buffer);
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}
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void java_lang_String::set_hash(oop string, unsigned int hash) {
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assert(initialized && (hash_offset > 0), "Must be initialized");
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string->int_field_put(hash_offset, hash);
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}
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// Accessors
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typeArrayOop java_lang_String::value(oop java_string) {
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assert(initialized && (value_offset > 0), "Must be initialized");
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assert(is_instance(java_string), "must be java_string");
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return (typeArrayOop) java_string->obj_field(value_offset);
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}
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unsigned int java_lang_String::hash(oop java_string) {
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assert(initialized && (hash_offset > 0), "Must be initialized");
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assert(is_instance(java_string), "must be java_string");
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return java_string->int_field(hash_offset);
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}
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bool java_lang_String::is_latin1(oop java_string) {
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assert(initialized, "Must be initialized");
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assert(is_instance(java_string), "must be java_string");
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if (coder_offset > 0) {
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jbyte coder = java_string->byte_field(coder_offset);
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assert(CompactStrings || coder == CODER_UTF16, "Must be UTF16 without CompactStrings");
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return coder == CODER_LATIN1;
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} else {
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return false;
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}
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}
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int java_lang_String::length(oop java_string) {
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assert(initialized, "Must be initialized");
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assert(is_instance(java_string), "must be java_string");
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typeArrayOop value_array = ((typeArrayOop)java_string->obj_field(value_offset));
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if (value_array == NULL) {
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return 0;
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}
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int arr_length = value_array->length();
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if (!is_latin1(java_string)) {
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assert((arr_length & 1) == 0, "should be even for UTF16 string");
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arr_length >>= 1; // convert number of bytes to number of elements
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}
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return arr_length;
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}
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bool java_lang_String::is_instance_inlined(oop obj) {
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return obj != NULL && obj->klass() == SystemDictionary::String_klass();
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}
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// Accessors
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oop java_lang_ref_Reference::referent(oop ref) {
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return ref->obj_field(referent_offset);
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}
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void java_lang_ref_Reference::set_referent(oop ref, oop value) {
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ref->obj_field_put(referent_offset, value);
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}
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void java_lang_ref_Reference::set_referent_raw(oop ref, oop value) {
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ref->obj_field_put_raw(referent_offset, value);
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}
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HeapWord* java_lang_ref_Reference::referent_addr(oop ref) {
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return ref->obj_field_addr<HeapWord>(referent_offset);
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}
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oop java_lang_ref_Reference::next(oop ref) {
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return ref->obj_field(next_offset);
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}
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void java_lang_ref_Reference::set_next(oop ref, oop value) {
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ref->obj_field_put(next_offset, value);
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}
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void java_lang_ref_Reference::set_next_raw(oop ref, oop value) {
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ref->obj_field_put_raw(next_offset, value);
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}
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HeapWord* java_lang_ref_Reference::next_addr(oop ref) {
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return ref->obj_field_addr<HeapWord>(next_offset);
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}
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oop java_lang_ref_Reference::discovered(oop ref) {
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return ref->obj_field(discovered_offset);
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}
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void java_lang_ref_Reference::set_discovered(oop ref, oop value) {
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ref->obj_field_put(discovered_offset, value);
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}
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void java_lang_ref_Reference::set_discovered_raw(oop ref, oop value) {
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ref->obj_field_put_raw(discovered_offset, value);
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}
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HeapWord* java_lang_ref_Reference::discovered_addr(oop ref) {
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return ref->obj_field_addr<HeapWord>(discovered_offset);
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}
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inline void java_lang_invoke_CallSite::set_target_volatile(oop site, oop target) {
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site->obj_field_put_volatile(_target_offset, target);
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}
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inline oop java_lang_invoke_CallSite::target(oop site) {
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return site->obj_field(_target_offset);
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}
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inline void java_lang_invoke_CallSite::set_target(oop site, oop target) {
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site->obj_field_put(_target_offset, target);
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}
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inline bool java_lang_invoke_CallSite::is_instance(oop obj) {
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return obj != NULL && is_subclass(obj->klass());
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}
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inline bool java_lang_invoke_MethodHandleNatives_CallSiteContext::is_instance(oop obj) {
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return obj != NULL && is_subclass(obj->klass());
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}
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inline bool java_lang_invoke_MemberName::is_instance(oop obj) {
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return obj != NULL && is_subclass(obj->klass());
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}
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inline bool java_lang_invoke_MethodType::is_instance(oop obj) {
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return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass();
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}
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inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) {
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return obj != NULL && is_subclass(obj->klass());
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}
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inline bool java_lang_Class::is_instance(oop obj) {
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return obj != NULL && obj->klass() == SystemDictionary::Class_klass();
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}
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inline bool java_lang_invoke_DirectMethodHandle::is_instance(oop obj) {
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return obj != NULL && is_subclass(obj->klass());
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}
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inline int Backtrace::merge_bci_and_version(int bci, int version) {
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// only store u2 for version, checking for overflow.
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if (version > USHRT_MAX || version < 0) version = USHRT_MAX;
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assert((jushort)bci == bci, "bci should be short");
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return build_int_from_shorts(version, bci);
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}
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inline int Backtrace::merge_mid_and_cpref(int mid, int cpref) {
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// only store u2 for mid and cpref, checking for overflow.
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assert((jushort)mid == mid, "mid should be short");
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assert((jushort)cpref == cpref, "cpref should be short");
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return build_int_from_shorts(cpref, mid);
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}
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inline int Backtrace::bci_at(unsigned int merged) {
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return extract_high_short_from_int(merged);
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}
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inline int Backtrace::version_at(unsigned int merged) {
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return extract_low_short_from_int(merged);
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}
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inline int Backtrace::mid_at(unsigned int merged) {
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return extract_high_short_from_int(merged);
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}
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inline int Backtrace::cpref_at(unsigned int merged) {
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return extract_low_short_from_int(merged);
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}
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inline int Backtrace::get_line_number(const methodHandle& method, int bci) {
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int line_number = 0;
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if (method->is_native()) {
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// Negative value different from -1 below, enabling Java code in
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// class java.lang.StackTraceElement to distinguish "native" from
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// "no LineNumberTable". JDK tests for -2.
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line_number = -2;
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} else {
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// Returns -1 if no LineNumberTable, and otherwise actual line number
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line_number = method->line_number_from_bci(bci);
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if (line_number == -1 && ShowHiddenFrames) {
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line_number = bci + 1000000;
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}
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}
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return line_number;
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}
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/*
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* Returns the source file name of a given InstanceKlass and version
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*/
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inline Symbol* Backtrace::get_source_file_name(InstanceKlass* holder, int version) {
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// Find the specific ik version that contains this source_file_name_index
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// via the previous versions list, but use the current version's
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// constant pool to look it up. The previous version's index has been
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// merged for the current constant pool.
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InstanceKlass* ik = holder->get_klass_version(version);
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// This version has been cleaned up.
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if (ik == NULL) return NULL;
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int source_file_name_index = ik->source_file_name_index();
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return (source_file_name_index == 0) ?
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(Symbol*)NULL : holder->constants()->symbol_at(source_file_name_index);
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}
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#endif // SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP
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