truffle: src/share/vm/oops/cpCache.cpp annotate

annotate src/share/vm/oops/cpCache.cpp @ 6725:da91efe96a93

6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

author	coleenp
date	Sat, 01 Sep 2012 13:25:18 -0400
parents	src/share/vm/oops/cpCacheOop.cpp@1d7922586cf6
children	4bfe8b33cf66

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1507 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1507 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1507 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	26 #include "gc_implementation/shared/markSweep.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	27 #include "interpreter/interpreter.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	28 #include "interpreter/rewriter.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	29 #include "memory/universe.inline.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	30 #include "oops/cpCache.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	31 #include "oops/objArrayOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	32 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	33 #include "prims/jvmtiRedefineClassesTrace.hpp"
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	34 #include "prims/methodHandles.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	35 #include "runtime/handles.inline.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	36 #ifndef SERIALGC
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	37 # include "gc_implementation/parallelScavenge/psPromotionManager.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	38 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	39
a61af66fc99e Initial load duke parents: diff changeset	40
a61af66fc99e Initial load duke parents: diff changeset	41 // Implememtation of ConstantPoolCacheEntry
a61af66fc99e Initial load duke parents: diff changeset	42
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	43 void ConstantPoolCacheEntry::initialize_entry(int index) {
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	44 assert(0 < index && index < 0x10000, "sanity check");
0 a61af66fc99e Initial load duke parents: diff changeset	45 _indices = index;
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	46 assert(constant_pool_index() == index, "");
0 a61af66fc99e Initial load duke parents: diff changeset	47 }
a61af66fc99e Initial load duke parents: diff changeset	48
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	49 int ConstantPoolCacheEntry::make_flags(TosState state,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	50 int option_bits,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	51 int field_index_or_method_params) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	52 assert(state < number_of_states, "Invalid state in make_flags");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	53 int f = ((int)state << tos_state_shift) \| option_bits \| field_index_or_method_params;
0 a61af66fc99e Initial load duke parents: diff changeset	54 // Preserve existing flag bit values
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	55 // The low bits are a field offset, or else the method parameter size.
0 a61af66fc99e Initial load duke parents: diff changeset	56 #ifdef ASSERT
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	57 TosState old_state = flag_state();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	58 assert(old_state == (TosState)0 \|\| old_state == state,
0 a61af66fc99e Initial load duke parents: diff changeset	59 "inconsistent cpCache flags state");
a61af66fc99e Initial load duke parents: diff changeset	60 #endif
a61af66fc99e Initial load duke parents: diff changeset	61 return (_flags \| f) ;
a61af66fc99e Initial load duke parents: diff changeset	62 }
a61af66fc99e Initial load duke parents: diff changeset	63
a61af66fc99e Initial load duke parents: diff changeset	64 void ConstantPoolCacheEntry::set_bytecode_1(Bytecodes::Code code) {
a61af66fc99e Initial load duke parents: diff changeset	65 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	66 // Read once.
a61af66fc99e Initial load duke parents: diff changeset	67 volatile Bytecodes::Code c = bytecode_1();
a61af66fc99e Initial load duke parents: diff changeset	68 assert(c == 0 \|\| c == code \|\| code == 0, "update must be consistent");
a61af66fc99e Initial load duke parents: diff changeset	69 #endif
a61af66fc99e Initial load duke parents: diff changeset	70 // Need to flush pending stores here before bytecode is written.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	71 OrderAccess::release_store_ptr(&_indices, _indices \| ((u_char)code << bytecode_1_shift));
0 a61af66fc99e Initial load duke parents: diff changeset	72 }
a61af66fc99e Initial load duke parents: diff changeset	73
a61af66fc99e Initial load duke parents: diff changeset	74 void ConstantPoolCacheEntry::set_bytecode_2(Bytecodes::Code code) {
a61af66fc99e Initial load duke parents: diff changeset	75 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	76 // Read once.
a61af66fc99e Initial load duke parents: diff changeset	77 volatile Bytecodes::Code c = bytecode_2();
a61af66fc99e Initial load duke parents: diff changeset	78 assert(c == 0 \|\| c == code \|\| code == 0, "update must be consistent");
a61af66fc99e Initial load duke parents: diff changeset	79 #endif
a61af66fc99e Initial load duke parents: diff changeset	80 // Need to flush pending stores here before bytecode is written.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	81 OrderAccess::release_store_ptr(&_indices, _indices \| ((u_char)code << bytecode_2_shift));
0 a61af66fc99e Initial load duke parents: diff changeset	82 }
a61af66fc99e Initial load duke parents: diff changeset	83
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	84 // Sets f1, ordering with previous writes.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	85 void ConstantPoolCacheEntry::release_set_f1(Metadata* f1) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	86 assert(f1 != NULL, "");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	87 OrderAccess::release_store_ptr((HeapWord*) &_f1, f1);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	88 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	89
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	90 // Sets flags, but only if the value was previously zero.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	91 bool ConstantPoolCacheEntry::init_flags_atomic(intptr_t flags) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	92 intptr_t result = Atomic::cmpxchg_ptr(flags, &_flags, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	93 return (result == 0);
2246 fbf3184da15d 7012339: JSR 292 crash in G1SATBCardTableModRefBS::write_ref_field_pre_work() twisti parents: 1972 diff changeset	94 }
1903 87d6a4d1ecbc 6990192: VM crashes in ciTypeFlow::get_block_for() twisti parents: 1662 diff changeset	95
0 a61af66fc99e Initial load duke parents: diff changeset	96 // Note that concurrent update of both bytecodes can leave one of them
a61af66fc99e Initial load duke parents: diff changeset	97 // reset to zero. This is harmless; the interpreter will simply re-resolve
a61af66fc99e Initial load duke parents: diff changeset	98 // the damaged entry. More seriously, the memory synchronization is needed
a61af66fc99e Initial load duke parents: diff changeset	99 // to flush other fields (f1, f2) completely to memory before the bytecodes
a61af66fc99e Initial load duke parents: diff changeset	100 // are updated, lest other processors see a non-zero bytecode but zero f1/f2.
a61af66fc99e Initial load duke parents: diff changeset	101 void ConstantPoolCacheEntry::set_field(Bytecodes::Code get_code,
a61af66fc99e Initial load duke parents: diff changeset	102 Bytecodes::Code put_code,
a61af66fc99e Initial load duke parents: diff changeset	103 KlassHandle field_holder,
3938 e6b1331a51d2 7086585: make Java field injection more flexible never parents: 3785 diff changeset	104 int field_index,
0 a61af66fc99e Initial load duke parents: diff changeset	105 int field_offset,
a61af66fc99e Initial load duke parents: diff changeset	106 TosState field_type,
a61af66fc99e Initial load duke parents: diff changeset	107 bool is_final,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	108 bool is_volatile,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	109 Klass* root_klass) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	110 set_f1(field_holder());
0 a61af66fc99e Initial load duke parents: diff changeset	111 set_f2(field_offset);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	112 assert((field_index & field_index_mask) == field_index,
0 a61af66fc99e Initial load duke parents: diff changeset	113 "field index does not fit in low flag bits");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	114 set_field_flags(field_type,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	115 ((is_volatile ? 1 : 0) << is_volatile_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	116 ((is_final ? 1 : 0) << is_final_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	117 field_index);
0 a61af66fc99e Initial load duke parents: diff changeset	118 set_bytecode_1(get_code);
a61af66fc99e Initial load duke parents: diff changeset	119 set_bytecode_2(put_code);
a61af66fc99e Initial load duke parents: diff changeset	120 NOT_PRODUCT(verify(tty));
a61af66fc99e Initial load duke parents: diff changeset	121 }
a61af66fc99e Initial load duke parents: diff changeset	122
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	123 void ConstantPoolCacheEntry::set_parameter_size(int value) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	124 // This routine is called only in corner cases where the CPCE is not yet initialized.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	125 // See AbstractInterpreter::deopt_continue_after_entry.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	126 assert(_flags == 0 \|\| parameter_size() == 0 \|\| parameter_size() == value,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	127 err_msg("size must not change: parameter_size=%d, value=%d", parameter_size(), value));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	128 // Setting the parameter size by itself is only safe if the
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	129 // current value of _flags is 0, otherwise another thread may have
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	130 // updated it and we don't want to overwrite that value. Don't
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	131 // bother trying to update it once it's nonzero but always make
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	132 // sure that the final parameter size agrees with what was passed.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	133 if (_flags == 0) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	134 Atomic::cmpxchg_ptr((value & parameter_size_mask), &_flags, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	135 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	136 guarantee(parameter_size() == value,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	137 err_msg("size must not change: parameter_size=%d, value=%d", parameter_size(), value));
0 a61af66fc99e Initial load duke parents: diff changeset	138 }
a61af66fc99e Initial load duke parents: diff changeset	139
a61af66fc99e Initial load duke parents: diff changeset	140 void ConstantPoolCacheEntry::set_method(Bytecodes::Code invoke_code,
a61af66fc99e Initial load duke parents: diff changeset	141 methodHandle method,
a61af66fc99e Initial load duke parents: diff changeset	142 int vtable_index) {
a61af66fc99e Initial load duke parents: diff changeset	143 assert(method->interpreter_entry() != NULL, "should have been set at this point");
a61af66fc99e Initial load duke parents: diff changeset	144 assert(!method->is_obsolete(), "attempt to write obsolete method to cpCache");
a61af66fc99e Initial load duke parents: diff changeset	145
a61af66fc99e Initial load duke parents: diff changeset	146 int byte_no = -1;
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	147 bool change_to_virtual = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	148
0 a61af66fc99e Initial load duke parents: diff changeset	149 switch (invoke_code) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	150 case Bytecodes::_invokeinterface:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	151 // We get here from InterpreterRuntime::resolve_invoke when an invokeinterface
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	152 // instruction somehow links to a non-interface method (in Object).
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	153 // In that case, the method has no itable index and must be invoked as a virtual.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	154 // Set a flag to keep track of this corner case.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	155 change_to_virtual = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	156
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	157 // ...and fall through as if we were handling invokevirtual:
0 a61af66fc99e Initial load duke parents: diff changeset	158 case Bytecodes::_invokevirtual:
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	159 {
0 a61af66fc99e Initial load duke parents: diff changeset	160 if (method->can_be_statically_bound()) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	161 // set_f2_as_vfinal_method checks if is_vfinal flag is true.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	162 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	163 ( 1 << is_vfinal_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	164 ((method->is_final_method() ? 1 : 0) << is_final_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	165 ((change_to_virtual ? 1 : 0) << is_forced_virtual_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	166 method()->size_of_parameters());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	167 set_f2_as_vfinal_method(method());
0 a61af66fc99e Initial load duke parents: diff changeset	168 } else {
a61af66fc99e Initial load duke parents: diff changeset	169 assert(vtable_index >= 0, "valid index");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	170 assert(!method->is_final_method(), "sanity");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	171 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	172 ((change_to_virtual ? 1 : 0) << is_forced_virtual_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	173 method()->size_of_parameters());
0 a61af66fc99e Initial load duke parents: diff changeset	174 set_f2(vtable_index);
a61af66fc99e Initial load duke parents: diff changeset	175 }
a61af66fc99e Initial load duke parents: diff changeset	176 byte_no = 2;
a61af66fc99e Initial load duke parents: diff changeset	177 break;
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	178 }
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	179
0 a61af66fc99e Initial load duke parents: diff changeset	180 case Bytecodes::_invokespecial:
a61af66fc99e Initial load duke parents: diff changeset	181 case Bytecodes::_invokestatic:
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	182 // Note: Read and preserve the value of the is_vfinal flag on any
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	183 // invokevirtual bytecode shared with this constant pool cache entry.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	184 // It is cheap and safe to consult is_vfinal() at all times.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	185 // Once is_vfinal is set, it must stay that way, lest we get a dangling oop.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	186 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	187 ((is_vfinal() ? 1 : 0) << is_vfinal_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	188 ((method->is_final_method() ? 1 : 0) << is_final_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	189 method()->size_of_parameters());
0 a61af66fc99e Initial load duke parents: diff changeset	190 set_f1(method());
a61af66fc99e Initial load duke parents: diff changeset	191 byte_no = 1;
a61af66fc99e Initial load duke parents: diff changeset	192 break;
a61af66fc99e Initial load duke parents: diff changeset	193 default:
a61af66fc99e Initial load duke parents: diff changeset	194 ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	195 break;
a61af66fc99e Initial load duke parents: diff changeset	196 }
a61af66fc99e Initial load duke parents: diff changeset	197
a61af66fc99e Initial load duke parents: diff changeset	198 // Note: byte_no also appears in TemplateTable::resolve.
a61af66fc99e Initial load duke parents: diff changeset	199 if (byte_no == 1) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	200 assert(invoke_code != Bytecodes::_invokevirtual &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	201 invoke_code != Bytecodes::_invokeinterface, "");
0 a61af66fc99e Initial load duke parents: diff changeset	202 set_bytecode_1(invoke_code);
a61af66fc99e Initial load duke parents: diff changeset	203 } else if (byte_no == 2) {
a61af66fc99e Initial load duke parents: diff changeset	204 if (change_to_virtual) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	205 assert(invoke_code == Bytecodes::_invokeinterface, "");
0 a61af66fc99e Initial load duke parents: diff changeset	206 // NOTE: THIS IS A HACK - BE VERY CAREFUL!!!
a61af66fc99e Initial load duke parents: diff changeset	207 //
a61af66fc99e Initial load duke parents: diff changeset	208 // Workaround for the case where we encounter an invokeinterface, but we
a61af66fc99e Initial load duke parents: diff changeset	209 // should really have an _invokevirtual since the resolved method is a
a61af66fc99e Initial load duke parents: diff changeset	210 // virtual method in java.lang.Object. This is a corner case in the spec
a61af66fc99e Initial load duke parents: diff changeset	211 // but is presumably legal. javac does not generate this code.
a61af66fc99e Initial load duke parents: diff changeset	212 //
a61af66fc99e Initial load duke parents: diff changeset	213 // We set bytecode_1() to _invokeinterface, because that is the
a61af66fc99e Initial load duke parents: diff changeset	214 // bytecode # used by the interpreter to see if it is resolved.
a61af66fc99e Initial load duke parents: diff changeset	215 // We set bytecode_2() to _invokevirtual.
a61af66fc99e Initial load duke parents: diff changeset	216 // See also interpreterRuntime.cpp. (8/25/2000)
a61af66fc99e Initial load duke parents: diff changeset	217 // Only set resolved for the invokeinterface case if method is public.
a61af66fc99e Initial load duke parents: diff changeset	218 // Otherwise, the method needs to be reresolved with caller for each
a61af66fc99e Initial load duke parents: diff changeset	219 // interface call.
a61af66fc99e Initial load duke parents: diff changeset	220 if (method->is_public()) set_bytecode_1(invoke_code);
a61af66fc99e Initial load duke parents: diff changeset	221 } else {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	222 assert(invoke_code == Bytecodes::_invokevirtual, "");
0 a61af66fc99e Initial load duke parents: diff changeset	223 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	224 // set up for invokevirtual, even if linking for invokeinterface also:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	225 set_bytecode_2(Bytecodes::_invokevirtual);
0 a61af66fc99e Initial load duke parents: diff changeset	226 } else {
a61af66fc99e Initial load duke parents: diff changeset	227 ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	228 }
a61af66fc99e Initial load duke parents: diff changeset	229 NOT_PRODUCT(verify(tty));
a61af66fc99e Initial load duke parents: diff changeset	230 }
a61af66fc99e Initial load duke parents: diff changeset	231
a61af66fc99e Initial load duke parents: diff changeset	232
a61af66fc99e Initial load duke parents: diff changeset	233 void ConstantPoolCacheEntry::set_interface_call(methodHandle method, int index) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	234 Klass* interf = method->method_holder();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	235 assert(InstanceKlass::cast(interf)->is_interface(), "must be an interface");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	236 assert(!method->is_final_method(), "interfaces do not have final methods; cannot link to one here");
0 a61af66fc99e Initial load duke parents: diff changeset	237 set_f1(interf);
a61af66fc99e Initial load duke parents: diff changeset	238 set_f2(index);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	239 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	240 0, // no option bits
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	241 method()->size_of_parameters());
0 a61af66fc99e Initial load duke parents: diff changeset	242 set_bytecode_1(Bytecodes::_invokeinterface);
a61af66fc99e Initial load duke parents: diff changeset	243 }
a61af66fc99e Initial load duke parents: diff changeset	244
a61af66fc99e Initial load duke parents: diff changeset	245
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	246 void ConstantPoolCacheEntry::set_method_handle(methodHandle adapter, Handle appendix,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	247 objArrayHandle resolved_references) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	248 set_method_handle_common(Bytecodes::_invokehandle, adapter, appendix, resolved_references);
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	249 }
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	250
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	251 void ConstantPoolCacheEntry::set_dynamic_call(methodHandle adapter, Handle appendix,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	252 objArrayHandle resolved_references) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	253 set_method_handle_common(Bytecodes::_invokedynamic, adapter, appendix, resolved_references);
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	254 }
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	255
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	256 void ConstantPoolCacheEntry::set_method_handle_common(Bytecodes::Code invoke_code,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	257 methodHandle adapter,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	258 Handle appendix,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	259 objArrayHandle resolved_references) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	260 // NOTE: This CPCE can be the subject of data races.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	261 // There are three words to update: flags, refs[f2], f1 (in that order).
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	262 // Writers must store all other values before f1.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	263 // Readers must test f1 first for non-null before reading other fields.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	264 // Competing writers must acquire exclusive access on the first
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	265 // write, to flags, using a compare/exchange.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	266 // A losing writer to flags must spin until the winner writes f1,
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	267 // so that when he returns, he can use the linked cache entry.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	268
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	269 bool has_appendix = appendix.not_null();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	270
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	271 // Write the flags.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	272 bool owner =
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	273 init_method_flags_atomic(as_TosState(adapter->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	274 ((has_appendix ? 1 : 0) << has_appendix_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	275 ( 1 << is_final_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	276 adapter->size_of_parameters());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	277 if (!owner) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	278 // Somebody else is working on the same CPCE. Let them proceed.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	279 while (is_f1_null()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	280 // Pause momentarily on a low-level lock, to allow racing thread to win.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	281 MutexLockerEx mu(Patching_lock, Mutex::_no_safepoint_check_flag);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	282 os::yield();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	283 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	284 return;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	285 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	286
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	287 if (TraceInvokeDynamic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	288 tty->print_cr("set_method_handle bc=%d appendix="PTR_FORMAT"%s method="PTR_FORMAT" ",
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	289 invoke_code,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	290 (intptr_t)appendix(), (has_appendix ? "" : " (unused)"),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	291 (intptr_t)adapter());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	292 adapter->print();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	293 if (has_appendix) appendix()->print();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	294 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	295
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	296 // Method handle invokes and invokedynamic sites use both cp cache words.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	297 // refs[f2], if not null, contains a value passed as a trailing argument to the adapter.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	298 // In the general case, this could be the call site's MethodType,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	299 // for use with java.lang.Invokers.checkExactType, or else a CallSite object.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	300 // f1 contains the adapter method which manages the actual call.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	301 // In the general case, this is a compiled LambdaForm.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	302 // (The Java code is free to optimize these calls by binding other
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	303 // sorts of methods and appendices to call sites.)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	304 // JVM-level linking is via f1, as if for invokespecial, and signatures are erased.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	305 // The appendix argument (if any) is added to the signature, and is counted in the parameter_size bits.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	306 // Even with the appendix, the method will never take more than 255 parameter slots.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	307 //
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	308 // This means that given a call site like (List)mh.invoke("foo"),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	309 // the f1 method has signature '(Ljl/Object;Ljl/invoke/MethodType;)Ljl/Object;',
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	310 // not '(Ljava/lang/String;)Ljava/util/List;'.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	311 // The fact that String and List are involved is encoded in the MethodType in refs[f2].
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	312 // This allows us to create fewer method oops, while keeping type safety.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	313 //
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	314
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	315 if (has_appendix) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	316 int ref_index = f2_as_index();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	317 assert(ref_index >= 0 && ref_index < resolved_references->length(), "oob");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	318 assert(resolved_references->obj_at(ref_index) == NULL, "init just once");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	319 resolved_references->obj_at_put(ref_index, appendix());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	320 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	321
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	322 release_set_f1(adapter()); // This must be the last one to set (see NOTE above)!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	323
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	324 // The interpreter assembly code does not check byte_2,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	325 // but it is used by is_resolved, method_if_resolved, etc.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	326 set_bytecode_1(invoke_code);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	327 NOT_PRODUCT(verify(tty));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	328 if (TraceInvokeDynamic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	329 this->print(tty, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	330 }
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	331 }
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	332
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	333 Method* ConstantPoolCacheEntry::method_if_resolved(constantPoolHandle cpool) {
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	334 // Decode the action of set_method and set_interface_call
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	335 Bytecodes::Code invoke_code = bytecode_1();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	336 if (invoke_code != (Bytecodes::Code)0) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	337 Metadata* f1 = (Metadata*)_f1;
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	338 if (f1 != NULL) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	339 switch (invoke_code) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	340 case Bytecodes::_invokeinterface:
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	341 assert(f1->is_klass(), "");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	342 return klassItable::method_for_itable_index((Klass*)f1, f2_as_index());
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	343 case Bytecodes::_invokestatic:
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	344 case Bytecodes::_invokespecial:
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	345 assert(!has_appendix(), "");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	346 case Bytecodes::_invokehandle:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	347 case Bytecodes::_invokedynamic:
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	348 assert(f1->is_method(), "");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	349 return (Method*)f1;
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	350 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	351 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	352 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	353 invoke_code = bytecode_2();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	354 if (invoke_code != (Bytecodes::Code)0) {
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	355 switch (invoke_code) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	356 case Bytecodes::_invokevirtual:
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	357 if (is_vfinal()) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	358 // invokevirtual
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	359 Method* m = f2_as_vfinal_method();
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	360 assert(m->is_method(), "");
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	361 return m;
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	362 } else {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	363 int holder_index = cpool->uncached_klass_ref_index_at(constant_pool_index());
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	364 if (cpool->tag_at(holder_index).is_klass()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	365 Klass* klass = cpool->resolved_klass_at(holder_index);
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	366 if (!Klass::cast(klass)->oop_is_instance())
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	367 klass = SystemDictionary::Object_klass();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	368 return InstanceKlass::cast(klass)->method_at_vtable(f2_as_index());
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	369 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	370 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	371 break;
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	372 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	373 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	374 return NULL;
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	375 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	376
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	377
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	378 oop ConstantPoolCacheEntry::appendix_if_resolved(constantPoolHandle cpool) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	379 if (is_f1_null() \|\| !has_appendix())
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	380 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	381 int ref_index = f2_as_index();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	382 objArrayOop resolved_references = cpool->resolved_references();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	383 return resolved_references->obj_at(ref_index);
0 a61af66fc99e Initial load duke parents: diff changeset	384 }
a61af66fc99e Initial load duke parents: diff changeset	385
a61af66fc99e Initial load duke parents: diff changeset	386
a61af66fc99e Initial load duke parents: diff changeset	387 // RedefineClasses() API support:
a61af66fc99e Initial load duke parents: diff changeset	388 // If this constantPoolCacheEntry refers to old_method then update it
a61af66fc99e Initial load duke parents: diff changeset	389 // to refer to new_method.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	390 bool ConstantPoolCacheEntry::adjust_method_entry(Method* old_method,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	391 Method* new_method, bool * trace_name_printed) {
0 a61af66fc99e Initial load duke parents: diff changeset	392
a61af66fc99e Initial load duke parents: diff changeset	393 if (is_vfinal()) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	394 // virtual and final so _f2 contains method ptr instead of vtable index
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	395 if (f2_as_vfinal_method() == old_method) {
0 a61af66fc99e Initial load duke parents: diff changeset	396 // match old_method so need an update
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	397 // NOTE: can't use set_f2_as_vfinal_method as it asserts on different values
0 a61af66fc99e Initial load duke parents: diff changeset	398 _f2 = (intptr_t)new_method;
a61af66fc99e Initial load duke parents: diff changeset	399 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
a61af66fc99e Initial load duke parents: diff changeset	400 if (!(*trace_name_printed)) {
a61af66fc99e Initial load duke parents: diff changeset	401 // RC_TRACE_MESG macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	402 RC_TRACE_MESG(("adjust: name=%s",
a61af66fc99e Initial load duke parents: diff changeset	403 Klass::cast(old_method->method_holder())->external_name()));
a61af66fc99e Initial load duke parents: diff changeset	404 *trace_name_printed = true;
a61af66fc99e Initial load duke parents: diff changeset	405 }
a61af66fc99e Initial load duke parents: diff changeset	406 // RC_TRACE macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	407 RC_TRACE(0x00400000, ("cpc vf-entry update: %s(%s)",
a61af66fc99e Initial load duke parents: diff changeset	408 new_method->name()->as_C_string(),
a61af66fc99e Initial load duke parents: diff changeset	409 new_method->signature()->as_C_string()));
a61af66fc99e Initial load duke parents: diff changeset	410 }
a61af66fc99e Initial load duke parents: diff changeset	411
a61af66fc99e Initial load duke parents: diff changeset	412 return true;
a61af66fc99e Initial load duke parents: diff changeset	413 }
a61af66fc99e Initial load duke parents: diff changeset	414
a61af66fc99e Initial load duke parents: diff changeset	415 // f1() is not used with virtual entries so bail out
a61af66fc99e Initial load duke parents: diff changeset	416 return false;
a61af66fc99e Initial load duke parents: diff changeset	417 }
a61af66fc99e Initial load duke parents: diff changeset	418
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	419 if (_f1 == NULL) {
0 a61af66fc99e Initial load duke parents: diff changeset	420 // NULL f1() means this is a virtual entry so bail out
a61af66fc99e Initial load duke parents: diff changeset	421 // We are assuming that the vtable index does not need change.
a61af66fc99e Initial load duke parents: diff changeset	422 return false;
a61af66fc99e Initial load duke parents: diff changeset	423 }
a61af66fc99e Initial load duke parents: diff changeset	424
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	425 if (_f1 == old_method) {
0 a61af66fc99e Initial load duke parents: diff changeset	426 _f1 = new_method;
a61af66fc99e Initial load duke parents: diff changeset	427 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
a61af66fc99e Initial load duke parents: diff changeset	428 if (!(*trace_name_printed)) {
a61af66fc99e Initial load duke parents: diff changeset	429 // RC_TRACE_MESG macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	430 RC_TRACE_MESG(("adjust: name=%s",
a61af66fc99e Initial load duke parents: diff changeset	431 Klass::cast(old_method->method_holder())->external_name()));
a61af66fc99e Initial load duke parents: diff changeset	432 *trace_name_printed = true;
a61af66fc99e Initial load duke parents: diff changeset	433 }
a61af66fc99e Initial load duke parents: diff changeset	434 // RC_TRACE macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	435 RC_TRACE(0x00400000, ("cpc entry update: %s(%s)",
a61af66fc99e Initial load duke parents: diff changeset	436 new_method->name()->as_C_string(),
a61af66fc99e Initial load duke parents: diff changeset	437 new_method->signature()->as_C_string()));
a61af66fc99e Initial load duke parents: diff changeset	438 }
a61af66fc99e Initial load duke parents: diff changeset	439
a61af66fc99e Initial load duke parents: diff changeset	440 return true;
a61af66fc99e Initial load duke parents: diff changeset	441 }
a61af66fc99e Initial load duke parents: diff changeset	442
a61af66fc99e Initial load duke parents: diff changeset	443 return false;
a61af66fc99e Initial load duke parents: diff changeset	444 }
a61af66fc99e Initial load duke parents: diff changeset	445
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	446 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	447 bool ConstantPoolCacheEntry::check_no_old_entries() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	448 if (is_vfinal()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	449 Metadata* f2 = (Metadata*)_f2;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	450 return (f2->is_valid() && f2->is_method() && !((Method*)f2)->is_old());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	451 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	452 return (_f1 == NULL \|\| (_f1->is_valid() && _f1->is_method() && !((Method*)_f1)->is_old()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	453 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	454 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	455 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	456
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	457 bool ConstantPoolCacheEntry::is_interesting_method_entry(Klass* k) {
0 a61af66fc99e Initial load duke parents: diff changeset	458 if (!is_method_entry()) {
a61af66fc99e Initial load duke parents: diff changeset	459 // not a method entry so not interesting by default
a61af66fc99e Initial load duke parents: diff changeset	460 return false;
a61af66fc99e Initial load duke parents: diff changeset	461 }
a61af66fc99e Initial load duke parents: diff changeset	462
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	463 Method* m = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	464 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	465 // virtual and final so _f2 contains method ptr instead of vtable index
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	466 m = f2_as_vfinal_method();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	467 } else if (is_f1_null()) {
0 a61af66fc99e Initial load duke parents: diff changeset	468 // NULL _f1 means this is a virtual entry so also not interesting
a61af66fc99e Initial load duke parents: diff changeset	469 return false;
a61af66fc99e Initial load duke parents: diff changeset	470 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	471 if (!(_f1->is_method())) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	472 // _f1 can also contain a Klass* for an interface
0 a61af66fc99e Initial load duke parents: diff changeset	473 return false;
a61af66fc99e Initial load duke parents: diff changeset	474 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	475 m = f1_as_method();
0 a61af66fc99e Initial load duke parents: diff changeset	476 }
a61af66fc99e Initial load duke parents: diff changeset	477
a61af66fc99e Initial load duke parents: diff changeset	478 assert(m != NULL && m->is_method(), "sanity check");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	479 if (m == NULL \|\| !m->is_method() \|\| (k != NULL && m->method_holder() != k)) {
0 a61af66fc99e Initial load duke parents: diff changeset	480 // robustness for above sanity checks or method is not in
a61af66fc99e Initial load duke parents: diff changeset	481 // the interesting class
a61af66fc99e Initial load duke parents: diff changeset	482 return false;
a61af66fc99e Initial load duke parents: diff changeset	483 }
a61af66fc99e Initial load duke parents: diff changeset	484
a61af66fc99e Initial load duke parents: diff changeset	485 // the method is in the interesting class so the entry is interesting
a61af66fc99e Initial load duke parents: diff changeset	486 return true;
a61af66fc99e Initial load duke parents: diff changeset	487 }
a61af66fc99e Initial load duke parents: diff changeset	488
a61af66fc99e Initial load duke parents: diff changeset	489 void ConstantPoolCacheEntry::print(outputStream* st, int index) const {
a61af66fc99e Initial load duke parents: diff changeset	490 // print separator
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	491 if (index == 0) st->print_cr(" -------------");
0 a61af66fc99e Initial load duke parents: diff changeset	492 // print entry
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	493 st->print("%3d ("PTR_FORMAT") ", index, (intptr_t)this);
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	494 st->print_cr("[%02x\|%02x\|%5d]", bytecode_2(), bytecode_1(), constant_pool_index());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	495 st->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_f1);
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	496 st->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_f2);
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	497 st->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_flags);
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	498 st->print_cr(" -------------");
0 a61af66fc99e Initial load duke parents: diff changeset	499 }
a61af66fc99e Initial load duke parents: diff changeset	500
a61af66fc99e Initial load duke parents: diff changeset	501 void ConstantPoolCacheEntry::verify(outputStream* st) const {
a61af66fc99e Initial load duke parents: diff changeset	502 // not implemented yet
a61af66fc99e Initial load duke parents: diff changeset	503 }
a61af66fc99e Initial load duke parents: diff changeset	504
a61af66fc99e Initial load duke parents: diff changeset	505 // Implementation of ConstantPoolCache
a61af66fc99e Initial load duke parents: diff changeset	506
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	507 ConstantPoolCache* ConstantPoolCache::allocate(ClassLoaderData* loader_data, int length, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	508 int size = ConstantPoolCache::size(length);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	510 return new (loader_data, size, false, THREAD) ConstantPoolCache(length);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	511 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	512
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	513 void ConstantPoolCache::initialize(intArray& inverse_index_map, intArray& invokedynamic_references_map) {
0 a61af66fc99e Initial load duke parents: diff changeset	514 assert(inverse_index_map.length() == length(), "inverse index map must have same length as cache");
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	515 for (int i = 0; i < length(); i++) {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	516 ConstantPoolCacheEntry* e = entry_at(i);
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	517 int original_index = inverse_index_map[i];
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	518 e->initialize_entry(original_index);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	519 assert(entry_at(i) == e, "sanity");
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	520 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	521 for (int ref = 0; ref < invokedynamic_references_map.length(); ref++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	522 int cpci = invokedynamic_references_map[ref];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	523 if (cpci >= 0)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	524 entry_at(cpci)->initialize_resolved_reference_index(ref);
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	525 }
0 a61af66fc99e Initial load duke parents: diff changeset	526 }
a61af66fc99e Initial load duke parents: diff changeset	527
a61af66fc99e Initial load duke parents: diff changeset	528 // RedefineClasses() API support:
a61af66fc99e Initial load duke parents: diff changeset	529 // If any entry of this constantPoolCache points to any of
a61af66fc99e Initial load duke parents: diff changeset	530 // old_methods, replace it with the corresponding new_method.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	531 void ConstantPoolCache::adjust_method_entries(Method old_methods, Method new_methods,
0 a61af66fc99e Initial load duke parents: diff changeset	532 int methods_length, bool * trace_name_printed) {
a61af66fc99e Initial load duke parents: diff changeset	533
a61af66fc99e Initial load duke parents: diff changeset	534 if (methods_length == 0) {
a61af66fc99e Initial load duke parents: diff changeset	535 // nothing to do if there are no methods
a61af66fc99e Initial load duke parents: diff changeset	536 return;
a61af66fc99e Initial load duke parents: diff changeset	537 }
a61af66fc99e Initial load duke parents: diff changeset	538
a61af66fc99e Initial load duke parents: diff changeset	539 // get shorthand for the interesting class
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	540 Klass* old_holder = old_methods[0]->method_holder();
0 a61af66fc99e Initial load duke parents: diff changeset	541
a61af66fc99e Initial load duke parents: diff changeset	542 for (int i = 0; i < length(); i++) {
a61af66fc99e Initial load duke parents: diff changeset	543 if (!entry_at(i)->is_interesting_method_entry(old_holder)) {
a61af66fc99e Initial load duke parents: diff changeset	544 // skip uninteresting methods
a61af66fc99e Initial load duke parents: diff changeset	545 continue;
a61af66fc99e Initial load duke parents: diff changeset	546 }
a61af66fc99e Initial load duke parents: diff changeset	547
a61af66fc99e Initial load duke parents: diff changeset	548 // The constantPoolCache contains entries for several different
a61af66fc99e Initial load duke parents: diff changeset	549 // things, but we only care about methods. In fact, we only care
a61af66fc99e Initial load duke parents: diff changeset	550 // about methods in the same class as the one that contains the
a61af66fc99e Initial load duke parents: diff changeset	551 // old_methods. At this point, we have an interesting entry.
a61af66fc99e Initial load duke parents: diff changeset	552
a61af66fc99e Initial load duke parents: diff changeset	553 for (int j = 0; j < methods_length; j++) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	554 Method* old_method = old_methods[j];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	555 Method* new_method = new_methods[j];
0 a61af66fc99e Initial load duke parents: diff changeset	556
a61af66fc99e Initial load duke parents: diff changeset	557 if (entry_at(i)->adjust_method_entry(old_method, new_method,
a61af66fc99e Initial load duke parents: diff changeset	558 trace_name_printed)) {
a61af66fc99e Initial load duke parents: diff changeset	559 // current old_method matched this entry and we updated it so
a61af66fc99e Initial load duke parents: diff changeset	560 // break out and get to the next interesting entry if there one
a61af66fc99e Initial load duke parents: diff changeset	561 break;
a61af66fc99e Initial load duke parents: diff changeset	562 }
a61af66fc99e Initial load duke parents: diff changeset	563 }
a61af66fc99e Initial load duke parents: diff changeset	564 }
a61af66fc99e Initial load duke parents: diff changeset	565 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	566
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	567 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	568 bool ConstantPoolCache::check_no_old_entries() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	569 for (int i = 1; i < length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	570 if (entry_at(i)->is_interesting_method_entry(NULL) &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	571 !entry_at(i)->check_no_old_entries()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	572 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	575 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	576 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	577 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	578
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	579
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	580 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	581
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	582 void ConstantPoolCache::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	583 assert(is_constantPoolCache(), "obj must be constant pool cache");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	584 st->print_cr(internal_name());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	585 // print constant pool cache entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	586 for (int i = 0; i < length(); i++) entry_at(i)->print(st, i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	587 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	588
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	589 void ConstantPoolCache::print_value_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	590 assert(is_constantPoolCache(), "obj must be constant pool cache");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	591 st->print("cache [%d]", length());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	592 print_address_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	593 st->print(" for ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	594 constant_pool()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	595 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	596
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	597
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	598 // Verification
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	599
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	600 void ConstantPoolCache::verify_on(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	601 guarantee(is_constantPoolCache(), "obj must be constant pool cache");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	602 // print constant pool cache entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	603 for (int i = 0; i < length(); i++) entry_at(i)->verify(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	604 }

Mercurial > hg > truffle

annotate src/share/vm/oops/cpCache.cpp @ 6725:da91efe96a93