author | kvn |
Thu, 07 Jul 2011 10:51:07 -0700 | |
changeset 10018 | ffb1197de2aa |
parent 10003 | 06c862a55fa4 |
parent 10008 | d84de97ad847 |
child 10500 | 0f9de4fc106e |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "code/debugInfoRec.hpp" |
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#include "gc_interface/collectedHeap.inline.hpp" |
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#include "interpreter/bytecodeStream.hpp" |
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#include "interpreter/bytecodeTracer.hpp" |
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#include "interpreter/bytecodes.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "interpreter/oopMapCache.hpp" |
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#include "memory/gcLocker.hpp" |
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#include "memory/generation.hpp" |
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#include "memory/oopFactory.hpp" |
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#include "oops/klassOop.hpp" |
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#include "oops/methodDataOop.hpp" |
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#include "oops/methodOop.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/symbol.hpp" |
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#include "prims/jvmtiExport.hpp" |
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#include "prims/methodHandleWalk.hpp" |
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#include "prims/nativeLookup.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/compilationPolicy.hpp" |
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#include "runtime/frame.inline.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/relocator.hpp" |
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#include "runtime/sharedRuntime.hpp" |
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#include "runtime/signature.hpp" |
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#include "utilities/quickSort.hpp" |
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#include "utilities/xmlstream.hpp" |
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// Implementation of methodOopDesc |
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address methodOopDesc::get_i2c_entry() { |
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assert(_adapter != NULL, "must have"); |
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return _adapter->get_i2c_entry(); |
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} |
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address methodOopDesc::get_c2i_entry() { |
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assert(_adapter != NULL, "must have"); |
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return _adapter->get_c2i_entry(); |
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} |
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address methodOopDesc::get_c2i_unverified_entry() { |
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assert(_adapter != NULL, "must have"); |
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return _adapter->get_c2i_unverified_entry(); |
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} |
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char* methodOopDesc::name_and_sig_as_C_string() { |
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return name_and_sig_as_C_string(Klass::cast(constants()->pool_holder()), name(), signature()); |
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} |
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char* methodOopDesc::name_and_sig_as_C_string(char* buf, int size) { |
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return name_and_sig_as_C_string(Klass::cast(constants()->pool_holder()), name(), signature(), buf, size); |
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} |
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char* methodOopDesc::name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature) { |
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const char* klass_name = klass->external_name(); |
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int klass_name_len = (int)strlen(klass_name); |
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int method_name_len = method_name->utf8_length(); |
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int len = klass_name_len + 1 + method_name_len + signature->utf8_length(); |
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char* dest = NEW_RESOURCE_ARRAY(char, len + 1); |
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strcpy(dest, klass_name); |
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dest[klass_name_len] = '.'; |
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strcpy(&dest[klass_name_len + 1], method_name->as_C_string()); |
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strcpy(&dest[klass_name_len + 1 + method_name_len], signature->as_C_string()); |
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dest[len] = 0; |
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return dest; |
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} |
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char* methodOopDesc::name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature, char* buf, int size) { |
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Symbol* klass_name = klass->name(); |
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klass_name->as_klass_external_name(buf, size); |
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int len = (int)strlen(buf); |
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if (len < size - 1) { |
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buf[len++] = '.'; |
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method_name->as_C_string(&(buf[len]), size - len); |
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len = (int)strlen(buf); |
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signature->as_C_string(&(buf[len]), size - len); |
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} |
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return buf; |
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} |
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int methodOopDesc::fast_exception_handler_bci_for(KlassHandle ex_klass, int throw_bci, TRAPS) { |
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// exception table holds quadruple entries of the form (beg_bci, end_bci, handler_bci, klass_index) |
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const int beg_bci_offset = 0; |
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const int end_bci_offset = 1; |
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const int handler_bci_offset = 2; |
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const int klass_index_offset = 3; |
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const int entry_size = 4; |
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// access exception table |
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typeArrayHandle table (THREAD, constMethod()->exception_table()); |
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int length = table->length(); |
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assert(length % entry_size == 0, "exception table format has changed"); |
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// iterate through all entries sequentially |
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constantPoolHandle pool(THREAD, constants()); |
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for (int i = 0; i < length; i += entry_size) { |
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int beg_bci = table->int_at(i + beg_bci_offset); |
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int end_bci = table->int_at(i + end_bci_offset); |
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assert(beg_bci <= end_bci, "inconsistent exception table"); |
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if (beg_bci <= throw_bci && throw_bci < end_bci) { |
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// exception handler bci range covers throw_bci => investigate further |
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int handler_bci = table->int_at(i + handler_bci_offset); |
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int klass_index = table->int_at(i + klass_index_offset); |
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if (klass_index == 0) { |
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return handler_bci; |
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} else if (ex_klass.is_null()) { |
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return handler_bci; |
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} else { |
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// we know the exception class => get the constraint class |
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// this may require loading of the constraint class; if verification |
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// fails or some other exception occurs, return handler_bci |
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klassOop k = pool->klass_at(klass_index, CHECK_(handler_bci)); |
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KlassHandle klass = KlassHandle(THREAD, k); |
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assert(klass.not_null(), "klass not loaded"); |
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if (ex_klass->is_subtype_of(klass())) { |
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return handler_bci; |
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} |
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} |
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} |
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} |
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return -1; |
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} |
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void methodOopDesc::mask_for(int bci, InterpreterOopMap* mask) { |
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Thread* myThread = Thread::current(); |
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methodHandle h_this(myThread, this); |
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#ifdef ASSERT |
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bool has_capability = myThread->is_VM_thread() || |
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myThread->is_ConcurrentGC_thread() || |
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myThread->is_GC_task_thread(); |
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if (!has_capability) { |
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if (!VerifyStack && !VerifyLastFrame) { |
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// verify stack calls this outside VM thread |
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warning("oopmap should only be accessed by the " |
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"VM, GC task or CMS threads (or during debugging)"); |
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InterpreterOopMap local_mask; |
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instanceKlass::cast(method_holder())->mask_for(h_this, bci, &local_mask); |
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local_mask.print(); |
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} |
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} |
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#endif |
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instanceKlass::cast(method_holder())->mask_for(h_this, bci, mask); |
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return; |
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} |
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int methodOopDesc::bci_from(address bcp) const { |
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assert(is_native() && bcp == code_base() || contains(bcp) || is_error_reported(), "bcp doesn't belong to this method"); |
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return bcp - code_base(); |
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} |
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// Return (int)bcx if it appears to be a valid BCI. |
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// Return bci_from((address)bcx) if it appears to be a valid BCP. |
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// Return -1 otherwise. |
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// Used by profiling code, when invalid data is a possibility. |
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// The caller is responsible for validating the methodOop itself. |
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int methodOopDesc::validate_bci_from_bcx(intptr_t bcx) const { |
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// keep bci as -1 if not a valid bci |
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int bci = -1; |
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if (bcx == 0 || (address)bcx == code_base()) { |
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// code_size() may return 0 and we allow 0 here |
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// the method may be native |
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bci = 0; |
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} else if (frame::is_bci(bcx)) { |
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if (bcx < code_size()) { |
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bci = (int)bcx; |
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} |
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} else if (contains((address)bcx)) { |
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bci = (address)bcx - code_base(); |
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} |
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// Assert that if we have dodged any asserts, bci is negative. |
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assert(bci == -1 || bci == bci_from(bcp_from(bci)), "sane bci if >=0"); |
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return bci; |
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} |
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address methodOopDesc::bcp_from(int bci) const { |
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assert((is_native() && bci == 0) || (!is_native() && 0 <= bci && bci < code_size()), "illegal bci"); |
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address bcp = code_base() + bci; |
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assert(is_native() && bcp == code_base() || contains(bcp), "bcp doesn't belong to this method"); |
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return bcp; |
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} |
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int methodOopDesc::object_size(bool is_native) { |
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// If native, then include pointers for native_function and signature_handler |
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int extra_bytes = (is_native) ? 2*sizeof(address*) : 0; |
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int extra_words = align_size_up(extra_bytes, BytesPerWord) / BytesPerWord; |
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return align_object_size(header_size() + extra_words); |
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} |
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Symbol* methodOopDesc::klass_name() const { |
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klassOop k = method_holder(); |
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assert(k->is_klass(), "must be klass"); |
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instanceKlass* ik = (instanceKlass*) k->klass_part(); |
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return ik->name(); |
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} |
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void methodOopDesc::set_interpreter_kind() { |
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int kind = Interpreter::method_kind(methodOop(this)); |
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assert(kind != Interpreter::invalid, |
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"interpreter entry must be valid"); |
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set_interpreter_kind(kind); |
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} |
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// Attempt to return method oop to original state. Clear any pointers |
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// (to objects outside the shared spaces). We won't be able to predict |
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// where they should point in a new JVM. Further initialize some |
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// entries now in order allow them to be write protected later. |
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void methodOopDesc::remove_unshareable_info() { |
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unlink_method(); |
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set_interpreter_kind(); |
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} |
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bool methodOopDesc::was_executed_more_than(int n) { |
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// Invocation counter is reset when the methodOop is compiled. |
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// If the method has compiled code we therefore assume it has |
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// be excuted more than n times. |
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if (is_accessor() || is_empty_method() || (code() != NULL)) { |
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// interpreter doesn't bump invocation counter of trivial methods |
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// compiler does not bump invocation counter of compiled methods |
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return true; |
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} |
261 |
else if (_invocation_counter.carry() || (method_data() != NULL && method_data()->invocation_counter()->carry())) { |
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// The carry bit is set when the counter overflows and causes |
263 |
// a compilation to occur. We don't know how many times |
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264 |
// the counter has been reset, so we simply assume it has |
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// been executed more than n times. |
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return true; |
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} else { |
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return invocation_count() > n; |
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} |
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} |
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#ifndef PRODUCT |
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void methodOopDesc::print_invocation_count() { |
1 | 274 |
if (is_static()) tty->print("static "); |
275 |
if (is_final()) tty->print("final "); |
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276 |
if (is_synchronized()) tty->print("synchronized "); |
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277 |
if (is_native()) tty->print("native "); |
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278 |
method_holder()->klass_part()->name()->print_symbol_on(tty); |
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279 |
tty->print("."); |
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280 |
name()->print_symbol_on(tty); |
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signature()->print_symbol_on(tty); |
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282 |
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283 |
if (WizardMode) { |
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// dump the size of the byte codes |
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285 |
tty->print(" {%d}", code_size()); |
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286 |
} |
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287 |
tty->cr(); |
|
288 |
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289 |
tty->print_cr (" interpreter_invocation_count: %8d ", interpreter_invocation_count()); |
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290 |
tty->print_cr (" invocation_counter: %8d ", invocation_count()); |
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tty->print_cr (" backedge_counter: %8d ", backedge_count()); |
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292 |
if (CountCompiledCalls) { |
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293 |
tty->print_cr (" compiled_invocation_count: %8d ", compiled_invocation_count()); |
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294 |
} |
|
295 |
||
296 |
} |
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297 |
#endif |
|
298 |
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299 |
// Build a methodDataOop object to hold information about this method |
|
300 |
// collected in the interpreter. |
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301 |
void methodOopDesc::build_interpreter_method_data(methodHandle method, TRAPS) { |
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// Do not profile method if current thread holds the pending list lock, |
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// which avoids deadlock for acquiring the MethodData_lock. |
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if (instanceRefKlass::owns_pending_list_lock((JavaThread*)THREAD)) { |
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return; |
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} |
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1 | 308 |
// Grab a lock here to prevent multiple |
309 |
// methodDataOops from being created. |
|
310 |
MutexLocker ml(MethodData_lock, THREAD); |
|
311 |
if (method->method_data() == NULL) { |
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312 |
methodDataOop method_data = oopFactory::new_methodData(method, CHECK); |
|
313 |
method->set_method_data(method_data); |
|
314 |
if (PrintMethodData && (Verbose || WizardMode)) { |
|
315 |
ResourceMark rm(THREAD); |
|
316 |
tty->print("build_interpreter_method_data for "); |
|
317 |
method->print_name(tty); |
|
318 |
tty->cr(); |
|
319 |
// At the end of the run, the MDO, full of data, will be dumped. |
|
320 |
} |
|
321 |
} |
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322 |
} |
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323 |
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324 |
void methodOopDesc::cleanup_inline_caches() { |
|
325 |
// The current system doesn't use inline caches in the interpreter |
|
326 |
// => nothing to do (keep this method around for future use) |
|
327 |
} |
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328 |
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329 |
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2534 | 330 |
int methodOopDesc::extra_stack_words() { |
331 |
// not an inline function, to avoid a header dependency on Interpreter |
|
5419 | 332 |
return extra_stack_entries() * Interpreter::stackElementSize; |
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} |
334 |
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335 |
||
1 | 336 |
void methodOopDesc::compute_size_of_parameters(Thread *thread) { |
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ArgumentSizeComputer asc(signature()); |
1 | 338 |
set_size_of_parameters(asc.size() + (is_static() ? 0 : 1)); |
339 |
} |
|
340 |
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341 |
#ifdef CC_INTERP |
|
342 |
void methodOopDesc::set_result_index(BasicType type) { |
|
343 |
_result_index = Interpreter::BasicType_as_index(type); |
|
344 |
} |
|
345 |
#endif |
|
346 |
||
347 |
BasicType methodOopDesc::result_type() const { |
|
348 |
ResultTypeFinder rtf(signature()); |
|
349 |
return rtf.type(); |
|
350 |
} |
|
351 |
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352 |
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353 |
bool methodOopDesc::is_empty_method() const { |
|
354 |
return code_size() == 1 |
|
355 |
&& *code_base() == Bytecodes::_return; |
|
356 |
} |
|
357 |
||
358 |
||
359 |
bool methodOopDesc::is_vanilla_constructor() const { |
|
360 |
// Returns true if this method is a vanilla constructor, i.e. an "<init>" "()V" method |
|
361 |
// which only calls the superclass vanilla constructor and possibly does stores of |
|
362 |
// zero constants to local fields: |
|
363 |
// |
|
364 |
// aload_0 |
|
365 |
// invokespecial |
|
366 |
// indexbyte1 |
|
367 |
// indexbyte2 |
|
368 |
// |
|
369 |
// followed by an (optional) sequence of: |
|
370 |
// |
|
371 |
// aload_0 |
|
372 |
// aconst_null / iconst_0 / fconst_0 / dconst_0 |
|
373 |
// putfield |
|
374 |
// indexbyte1 |
|
375 |
// indexbyte2 |
|
376 |
// |
|
377 |
// followed by: |
|
378 |
// |
|
379 |
// return |
|
380 |
||
381 |
assert(name() == vmSymbols::object_initializer_name(), "Should only be called for default constructors"); |
|
382 |
assert(signature() == vmSymbols::void_method_signature(), "Should only be called for default constructors"); |
|
383 |
int size = code_size(); |
|
384 |
// Check if size match |
|
385 |
if (size == 0 || size % 5 != 0) return false; |
|
386 |
address cb = code_base(); |
|
387 |
int last = size - 1; |
|
388 |
if (cb[0] != Bytecodes::_aload_0 || cb[1] != Bytecodes::_invokespecial || cb[last] != Bytecodes::_return) { |
|
389 |
// Does not call superclass default constructor |
|
390 |
return false; |
|
391 |
} |
|
392 |
// Check optional sequence |
|
393 |
for (int i = 4; i < last; i += 5) { |
|
394 |
if (cb[i] != Bytecodes::_aload_0) return false; |
|
395 |
if (!Bytecodes::is_zero_const(Bytecodes::cast(cb[i+1]))) return false; |
|
396 |
if (cb[i+2] != Bytecodes::_putfield) return false; |
|
397 |
} |
|
398 |
return true; |
|
399 |
} |
|
400 |
||
401 |
||
402 |
bool methodOopDesc::compute_has_loops_flag() { |
|
403 |
BytecodeStream bcs(methodOop(this)); |
|
404 |
Bytecodes::Code bc; |
|
405 |
||
406 |
while ((bc = bcs.next()) >= 0) { |
|
407 |
switch( bc ) { |
|
408 |
case Bytecodes::_ifeq: |
|
409 |
case Bytecodes::_ifnull: |
|
410 |
case Bytecodes::_iflt: |
|
411 |
case Bytecodes::_ifle: |
|
412 |
case Bytecodes::_ifne: |
|
413 |
case Bytecodes::_ifnonnull: |
|
414 |
case Bytecodes::_ifgt: |
|
415 |
case Bytecodes::_ifge: |
|
416 |
case Bytecodes::_if_icmpeq: |
|
417 |
case Bytecodes::_if_icmpne: |
|
418 |
case Bytecodes::_if_icmplt: |
|
419 |
case Bytecodes::_if_icmpgt: |
|
420 |
case Bytecodes::_if_icmple: |
|
421 |
case Bytecodes::_if_icmpge: |
|
422 |
case Bytecodes::_if_acmpeq: |
|
423 |
case Bytecodes::_if_acmpne: |
|
424 |
case Bytecodes::_goto: |
|
425 |
case Bytecodes::_jsr: |
|
426 |
if( bcs.dest() < bcs.next_bci() ) _access_flags.set_has_loops(); |
|
427 |
break; |
|
428 |
||
429 |
case Bytecodes::_goto_w: |
|
430 |
case Bytecodes::_jsr_w: |
|
431 |
if( bcs.dest_w() < bcs.next_bci() ) _access_flags.set_has_loops(); |
|
432 |
break; |
|
433 |
} |
|
434 |
} |
|
435 |
_access_flags.set_loops_flag_init(); |
|
436 |
return _access_flags.has_loops(); |
|
437 |
} |
|
438 |
||
439 |
||
440 |
bool methodOopDesc::is_final_method() const { |
|
441 |
// %%% Should return true for private methods also, |
|
442 |
// since there is no way to override them. |
|
443 |
return is_final() || Klass::cast(method_holder())->is_final(); |
|
444 |
} |
|
445 |
||
446 |
||
447 |
bool methodOopDesc::is_strict_method() const { |
|
448 |
return is_strict(); |
|
449 |
} |
|
450 |
||
451 |
||
452 |
bool methodOopDesc::can_be_statically_bound() const { |
|
453 |
if (is_final_method()) return true; |
|
454 |
return vtable_index() == nonvirtual_vtable_index; |
|
455 |
} |
|
456 |
||
457 |
||
458 |
bool methodOopDesc::is_accessor() const { |
|
459 |
if (code_size() != 5) return false; |
|
460 |
if (size_of_parameters() != 1) return false; |
|
7913 | 461 |
if (java_code_at(0) != Bytecodes::_aload_0 ) return false; |
462 |
if (java_code_at(1) != Bytecodes::_getfield) return false; |
|
463 |
if (java_code_at(4) != Bytecodes::_areturn && |
|
464 |
java_code_at(4) != Bytecodes::_ireturn ) return false; |
|
1 | 465 |
return true; |
466 |
} |
|
467 |
||
468 |
||
469 |
bool methodOopDesc::is_initializer() const { |
|
8653
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
470 |
return name() == vmSymbols::object_initializer_name() || is_static_initializer(); |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
471 |
} |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
472 |
|
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
473 |
bool methodOopDesc::has_valid_initializer_flags() const { |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
474 |
return (is_static() || |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
475 |
instanceKlass::cast(method_holder())->major_version() < 51); |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
476 |
} |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
477 |
|
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
478 |
bool methodOopDesc::is_static_initializer() const { |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
479 |
// For classfiles version 51 or greater, ensure that the clinit method is |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
480 |
// static. Non-static methods with the name "<clinit>" are not static |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
481 |
// initializers. (older classfiles exempted for backward compatibility) |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
482 |
return name() == vmSymbols::class_initializer_name() && |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8334
diff
changeset
|
483 |
has_valid_initializer_flags(); |
1 | 484 |
} |
485 |
||
486 |
||
487 |
objArrayHandle methodOopDesc::resolved_checked_exceptions_impl(methodOop this_oop, TRAPS) { |
|
488 |
int length = this_oop->checked_exceptions_length(); |
|
489 |
if (length == 0) { // common case |
|
490 |
return objArrayHandle(THREAD, Universe::the_empty_class_klass_array()); |
|
491 |
} else { |
|
492 |
methodHandle h_this(THREAD, this_oop); |
|
4571 | 493 |
objArrayOop m_oop = oopFactory::new_objArray(SystemDictionary::Class_klass(), length, CHECK_(objArrayHandle())); |
1 | 494 |
objArrayHandle mirrors (THREAD, m_oop); |
495 |
for (int i = 0; i < length; i++) { |
|
496 |
CheckedExceptionElement* table = h_this->checked_exceptions_start(); // recompute on each iteration, not gc safe |
|
497 |
klassOop k = h_this->constants()->klass_at(table[i].class_cp_index, CHECK_(objArrayHandle())); |
|
4571 | 498 |
assert(Klass::cast(k)->is_subclass_of(SystemDictionary::Throwable_klass()), "invalid exception class"); |
1 | 499 |
mirrors->obj_at_put(i, Klass::cast(k)->java_mirror()); |
500 |
} |
|
501 |
return mirrors; |
|
502 |
} |
|
503 |
}; |
|
504 |
||
505 |
||
506 |
int methodOopDesc::line_number_from_bci(int bci) const { |
|
507 |
if (bci == SynchronizationEntryBCI) bci = 0; |
|
508 |
assert(bci == 0 || 0 <= bci && bci < code_size(), "illegal bci"); |
|
509 |
int best_bci = 0; |
|
510 |
int best_line = -1; |
|
511 |
||
512 |
if (has_linenumber_table()) { |
|
513 |
// The line numbers are a short array of 2-tuples [start_pc, line_number]. |
|
514 |
// Not necessarily sorted and not necessarily one-to-one. |
|
515 |
CompressedLineNumberReadStream stream(compressed_linenumber_table()); |
|
516 |
while (stream.read_pair()) { |
|
517 |
if (stream.bci() == bci) { |
|
518 |
// perfect match |
|
519 |
return stream.line(); |
|
520 |
} else { |
|
521 |
// update best_bci/line |
|
522 |
if (stream.bci() < bci && stream.bci() >= best_bci) { |
|
523 |
best_bci = stream.bci(); |
|
524 |
best_line = stream.line(); |
|
525 |
} |
|
526 |
} |
|
527 |
} |
|
528 |
} |
|
529 |
return best_line; |
|
530 |
} |
|
531 |
||
532 |
||
533 |
bool methodOopDesc::is_klass_loaded_by_klass_index(int klass_index) const { |
|
534 |
if( _constants->tag_at(klass_index).is_unresolved_klass() ) { |
|
535 |
Thread *thread = Thread::current(); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
536 |
Symbol* klass_name = _constants->klass_name_at(klass_index); |
1 | 537 |
Handle loader(thread, instanceKlass::cast(method_holder())->class_loader()); |
538 |
Handle prot (thread, Klass::cast(method_holder())->protection_domain()); |
|
539 |
return SystemDictionary::find(klass_name, loader, prot, thread) != NULL; |
|
540 |
} else { |
|
541 |
return true; |
|
542 |
} |
|
543 |
} |
|
544 |
||
545 |
||
546 |
bool methodOopDesc::is_klass_loaded(int refinfo_index, bool must_be_resolved) const { |
|
547 |
int klass_index = _constants->klass_ref_index_at(refinfo_index); |
|
548 |
if (must_be_resolved) { |
|
549 |
// Make sure klass is resolved in constantpool. |
|
550 |
if (constants()->tag_at(klass_index).is_unresolved_klass()) return false; |
|
551 |
} |
|
552 |
return is_klass_loaded_by_klass_index(klass_index); |
|
553 |
} |
|
554 |
||
555 |
||
556 |
void methodOopDesc::set_native_function(address function, bool post_event_flag) { |
|
557 |
assert(function != NULL, "use clear_native_function to unregister natives"); |
|
558 |
address* native_function = native_function_addr(); |
|
559 |
||
560 |
// We can see racers trying to place the same native function into place. Once |
|
561 |
// is plenty. |
|
562 |
address current = *native_function; |
|
563 |
if (current == function) return; |
|
564 |
if (post_event_flag && JvmtiExport::should_post_native_method_bind() && |
|
565 |
function != NULL) { |
|
566 |
// native_method_throw_unsatisfied_link_error_entry() should only |
|
567 |
// be passed when post_event_flag is false. |
|
568 |
assert(function != |
|
569 |
SharedRuntime::native_method_throw_unsatisfied_link_error_entry(), |
|
570 |
"post_event_flag mis-match"); |
|
571 |
||
572 |
// post the bind event, and possible change the bind function |
|
573 |
JvmtiExport::post_native_method_bind(this, &function); |
|
574 |
} |
|
575 |
*native_function = function; |
|
576 |
// This function can be called more than once. We must make sure that we always |
|
577 |
// use the latest registered method -> check if a stub already has been generated. |
|
578 |
// If so, we have to make it not_entrant. |
|
579 |
nmethod* nm = code(); // Put it into local variable to guard against concurrent updates |
|
580 |
if (nm != NULL) { |
|
581 |
nm->make_not_entrant(); |
|
582 |
} |
|
583 |
} |
|
584 |
||
585 |
||
586 |
bool methodOopDesc::has_native_function() const { |
|
587 |
address func = native_function(); |
|
588 |
return (func != NULL && func != SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
|
589 |
} |
|
590 |
||
591 |
||
592 |
void methodOopDesc::clear_native_function() { |
|
593 |
set_native_function( |
|
594 |
SharedRuntime::native_method_throw_unsatisfied_link_error_entry(), |
|
595 |
!native_bind_event_is_interesting); |
|
596 |
clear_code(); |
|
597 |
} |
|
598 |
||
599 |
||
600 |
void methodOopDesc::set_signature_handler(address handler) { |
|
601 |
address* signature_handler = signature_handler_addr(); |
|
602 |
*signature_handler = handler; |
|
603 |
} |
|
604 |
||
605 |
||
606 |
bool methodOopDesc::is_not_compilable(int comp_level) const { |
|
2534 | 607 |
if (is_method_handle_invoke()) { |
608 |
// compilers must recognize this method specially, or not at all |
|
609 |
return true; |
|
610 |
} |
|
6453 | 611 |
if (number_of_breakpoints() > 0) { |
612 |
return true; |
|
613 |
} |
|
614 |
if (comp_level == CompLevel_any) { |
|
615 |
return is_not_c1_compilable() || is_not_c2_compilable(); |
|
1 | 616 |
} |
6453 | 617 |
if (is_c1_compile(comp_level)) { |
618 |
return is_not_c1_compilable(); |
|
619 |
} |
|
620 |
if (is_c2_compile(comp_level)) { |
|
621 |
return is_not_c2_compilable(); |
|
622 |
} |
|
623 |
return false; |
|
1 | 624 |
} |
625 |
||
626 |
// call this when compiler finds that this method is not compilable |
|
4756
da88c27a9241
6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents:
4754
diff
changeset
|
627 |
void methodOopDesc::set_not_compilable(int comp_level, bool report) { |
da88c27a9241
6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents:
4754
diff
changeset
|
628 |
if (PrintCompilation && report) { |
4754
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
629 |
ttyLocker ttyl; |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
630 |
tty->print("made not compilable "); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
631 |
this->print_short_name(tty); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
632 |
int size = this->code_size(); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
633 |
if (size > 0) |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
634 |
tty->print(" (%d bytes)", size); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
635 |
tty->cr(); |
8aef16f24e16
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
4750
diff
changeset
|
636 |
} |
1 | 637 |
if ((TraceDeoptimization || LogCompilation) && (xtty != NULL)) { |
638 |
ttyLocker ttyl; |
|
639 |
xtty->begin_elem("make_not_compilable thread='%d'", (int) os::current_thread_id()); |
|
640 |
xtty->method(methodOop(this)); |
|
641 |
xtty->stamp(); |
|
642 |
xtty->end_elem(); |
|
643 |
} |
|
6453 | 644 |
if (comp_level == CompLevel_all) { |
645 |
set_not_c1_compilable(); |
|
646 |
set_not_c2_compilable(); |
|
647 |
} else { |
|
648 |
if (is_c1_compile(comp_level)) { |
|
649 |
set_not_c1_compilable(); |
|
650 |
} else |
|
651 |
if (is_c2_compile(comp_level)) { |
|
652 |
set_not_c2_compilable(); |
|
653 |
} |
|
1 | 654 |
} |
6453 | 655 |
CompilationPolicy::policy()->disable_compilation(this); |
1 | 656 |
} |
657 |
||
658 |
// Revert to using the interpreter and clear out the nmethod |
|
659 |
void methodOopDesc::clear_code() { |
|
660 |
||
661 |
// this may be NULL if c2i adapters have not been made yet |
|
662 |
// Only should happen at allocate time. |
|
663 |
if (_adapter == NULL) { |
|
664 |
_from_compiled_entry = NULL; |
|
665 |
} else { |
|
666 |
_from_compiled_entry = _adapter->get_c2i_entry(); |
|
667 |
} |
|
668 |
OrderAccess::storestore(); |
|
669 |
_from_interpreted_entry = _i2i_entry; |
|
670 |
OrderAccess::storestore(); |
|
671 |
_code = NULL; |
|
672 |
} |
|
673 |
||
674 |
// Called by class data sharing to remove any entry points (which are not shared) |
|
675 |
void methodOopDesc::unlink_method() { |
|
676 |
_code = NULL; |
|
677 |
_i2i_entry = NULL; |
|
678 |
_from_interpreted_entry = NULL; |
|
679 |
if (is_native()) { |
|
680 |
*native_function_addr() = NULL; |
|
681 |
set_signature_handler(NULL); |
|
682 |
} |
|
683 |
NOT_PRODUCT(set_compiled_invocation_count(0);) |
|
684 |
invocation_counter()->reset(); |
|
685 |
backedge_counter()->reset(); |
|
686 |
_adapter = NULL; |
|
687 |
_from_compiled_entry = NULL; |
|
688 |
assert(_method_data == NULL, "unexpected method data?"); |
|
689 |
set_method_data(NULL); |
|
690 |
set_interpreter_throwout_count(0); |
|
691 |
set_interpreter_invocation_count(0); |
|
692 |
} |
|
693 |
||
694 |
// Called when the method_holder is getting linked. Setup entrypoints so the method |
|
695 |
// is ready to be called from interpreter, compiler, and vtables. |
|
696 |
void methodOopDesc::link_method(methodHandle h_method, TRAPS) { |
|
9971 | 697 |
// If the code cache is full, we may reenter this function for the |
698 |
// leftover methods that weren't linked. |
|
699 |
if (_i2i_entry != NULL) return; |
|
700 |
||
1 | 701 |
assert(_adapter == NULL, "init'd to NULL" ); |
702 |
assert( _code == NULL, "nothing compiled yet" ); |
|
703 |
||
704 |
// Setup interpreter entrypoint |
|
705 |
assert(this == h_method(), "wrong h_method()" ); |
|
706 |
address entry = Interpreter::entry_for_method(h_method); |
|
707 |
assert(entry != NULL, "interpreter entry must be non-null"); |
|
708 |
// Sets both _i2i_entry and _from_interpreted_entry |
|
709 |
set_interpreter_entry(entry); |
|
2534 | 710 |
if (is_native() && !is_method_handle_invoke()) { |
1 | 711 |
set_native_function( |
712 |
SharedRuntime::native_method_throw_unsatisfied_link_error_entry(), |
|
713 |
!native_bind_event_is_interesting); |
|
714 |
} |
|
715 |
||
716 |
// Setup compiler entrypoint. This is made eagerly, so we do not need |
|
717 |
// special handling of vtables. An alternative is to make adapters more |
|
718 |
// lazily by calling make_adapter() from from_compiled_entry() for the |
|
719 |
// normal calls. For vtable calls life gets more complicated. When a |
|
720 |
// call-site goes mega-morphic we need adapters in all methods which can be |
|
721 |
// called from the vtable. We need adapters on such methods that get loaded |
|
722 |
// later. Ditto for mega-morphic itable calls. If this proves to be a |
|
723 |
// problem we'll make these lazily later. |
|
9972
a91e8e564b52
7049928: VM crashes with "assert(_adapter != NULL) failed: must have" at methodOop.cpp:63
coleenp
parents:
9971
diff
changeset
|
724 |
(void) make_adapters(h_method, CHECK); |
1 | 725 |
|
726 |
// ONLY USE the h_method now as make_adapter may have blocked |
|
727 |
||
728 |
} |
|
729 |
||
730 |
address methodOopDesc::make_adapters(methodHandle mh, TRAPS) { |
|
731 |
// Adapters for compiled code are made eagerly here. They are fairly |
|
732 |
// small (generally < 100 bytes) and quick to make (and cached and shared) |
|
733 |
// so making them eagerly shouldn't be too expensive. |
|
734 |
AdapterHandlerEntry* adapter = AdapterHandlerLibrary::get_adapter(mh); |
|
735 |
if (adapter == NULL ) { |
|
4735
3d4e4ec0df67
6911204: generated adapters with large signatures can fill up the code cache
never
parents:
4581
diff
changeset
|
736 |
THROW_MSG_NULL(vmSymbols::java_lang_VirtualMachineError(), "out of space in CodeCache for adapters"); |
1 | 737 |
} |
738 |
||
739 |
mh->set_adapter_entry(adapter); |
|
740 |
mh->_from_compiled_entry = adapter->get_c2i_entry(); |
|
741 |
return adapter->get_c2i_entry(); |
|
742 |
} |
|
743 |
||
744 |
// The verified_code_entry() must be called when a invoke is resolved |
|
745 |
// on this method. |
|
746 |
||
747 |
// It returns the compiled code entry point, after asserting not null. |
|
748 |
// This function is called after potential safepoints so that nmethod |
|
749 |
// or adapter that it points to is still live and valid. |
|
750 |
// This function must not hit a safepoint! |
|
751 |
address methodOopDesc::verified_code_entry() { |
|
752 |
debug_only(No_Safepoint_Verifier nsv;) |
|
4750 | 753 |
nmethod *code = (nmethod *)OrderAccess::load_ptr_acquire(&_code); |
754 |
if (code == NULL && UseCodeCacheFlushing) { |
|
755 |
nmethod *saved_code = CodeCache::find_and_remove_saved_code(this); |
|
756 |
if (saved_code != NULL) { |
|
757 |
methodHandle method(this); |
|
758 |
assert( ! saved_code->is_osr_method(), "should not get here for osr" ); |
|
759 |
set_code( method, saved_code ); |
|
760 |
} |
|
761 |
} |
|
762 |
||
1 | 763 |
assert(_from_compiled_entry != NULL, "must be set"); |
764 |
return _from_compiled_entry; |
|
765 |
} |
|
766 |
||
767 |
// Check that if an nmethod ref exists, it has a backlink to this or no backlink at all |
|
768 |
// (could be racing a deopt). |
|
769 |
// Not inline to avoid circular ref. |
|
770 |
bool methodOopDesc::check_code() const { |
|
771 |
// cached in a register or local. There's a race on the value of the field. |
|
772 |
nmethod *code = (nmethod *)OrderAccess::load_ptr_acquire(&_code); |
|
773 |
return code == NULL || (code->method() == NULL) || (code->method() == (methodOop)this && !code->is_osr_method()); |
|
774 |
} |
|
775 |
||
776 |
// Install compiled code. Instantly it can execute. |
|
777 |
void methodOopDesc::set_code(methodHandle mh, nmethod *code) { |
|
778 |
assert( code, "use clear_code to remove code" ); |
|
779 |
assert( mh->check_code(), "" ); |
|
780 |
||
781 |
guarantee(mh->adapter() != NULL, "Adapter blob must already exist!"); |
|
782 |
||
783 |
// These writes must happen in this order, because the interpreter will |
|
784 |
// directly jump to from_interpreted_entry which jumps to an i2c adapter |
|
785 |
// which jumps to _from_compiled_entry. |
|
786 |
mh->_code = code; // Assign before allowing compiled code to exec |
|
787 |
||
788 |
int comp_level = code->comp_level(); |
|
789 |
// In theory there could be a race here. In practice it is unlikely |
|
790 |
// and not worth worrying about. |
|
6453 | 791 |
if (comp_level > mh->highest_comp_level()) { |
792 |
mh->set_highest_comp_level(comp_level); |
|
1 | 793 |
} |
794 |
||
795 |
OrderAccess::storestore(); |
|
6187 | 796 |
#ifdef SHARK |
6771
3f9a5f169070
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
6463
diff
changeset
|
797 |
mh->_from_interpreted_entry = code->insts_begin(); |
6187 | 798 |
#else |
1 | 799 |
mh->_from_compiled_entry = code->verified_entry_point(); |
800 |
OrderAccess::storestore(); |
|
801 |
// Instantly compiled code can execute. |
|
802 |
mh->_from_interpreted_entry = mh->get_i2c_entry(); |
|
6187 | 803 |
#endif // SHARK |
1 | 804 |
|
805 |
} |
|
806 |
||
807 |
||
808 |
bool methodOopDesc::is_overridden_in(klassOop k) const { |
|
809 |
instanceKlass* ik = instanceKlass::cast(k); |
|
810 |
||
811 |
if (ik->is_interface()) return false; |
|
812 |
||
813 |
// If method is an interface, we skip it - except if it |
|
814 |
// is a miranda method |
|
815 |
if (instanceKlass::cast(method_holder())->is_interface()) { |
|
816 |
// Check that method is not a miranda method |
|
817 |
if (ik->lookup_method(name(), signature()) == NULL) { |
|
818 |
// No implementation exist - so miranda method |
|
819 |
return false; |
|
820 |
} |
|
821 |
return true; |
|
822 |
} |
|
823 |
||
824 |
assert(ik->is_subclass_of(method_holder()), "should be subklass"); |
|
825 |
assert(ik->vtable() != NULL, "vtable should exist"); |
|
826 |
if (vtable_index() == nonvirtual_vtable_index) { |
|
827 |
return false; |
|
828 |
} else { |
|
829 |
methodOop vt_m = ik->method_at_vtable(vtable_index()); |
|
830 |
return vt_m != methodOop(this); |
|
831 |
} |
|
832 |
} |
|
833 |
||
834 |
||
221
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
835 |
// give advice about whether this methodOop should be cached or not |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
836 |
bool methodOopDesc::should_not_be_cached() const { |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
837 |
if (is_old()) { |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
838 |
// This method has been redefined. It is either EMCP or obsolete |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
839 |
// and we don't want to cache it because that would pin the method |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
840 |
// down and prevent it from being collectible if and when it |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
841 |
// finishes executing. |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
842 |
return true; |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
843 |
} |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
844 |
|
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
845 |
if (mark()->should_not_be_cached()) { |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
846 |
// It is either not safe or not a good idea to cache this |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
847 |
// method at this time because of the state of the embedded |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
848 |
// markOop. See markOop.cpp for the gory details. |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
849 |
return true; |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
850 |
} |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
851 |
|
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
852 |
// caching this method should be just fine |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
853 |
return false; |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
854 |
} |
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
855 |
|
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
856 |
bool methodOopDesc::is_method_handle_invoke_name(vmSymbols::SID name_sid) { |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
857 |
switch (name_sid) { |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
858 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(invokeExact_name): |
9116 | 859 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(invoke_name): |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
860 |
return true; |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
861 |
} |
9116 | 862 |
if (AllowInvokeGeneric |
863 |
&& name_sid == vmSymbols::VM_SYMBOL_ENUM_NAME(invokeGeneric_name)) |
|
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
864 |
return true; |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
865 |
return false; |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
866 |
} |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
867 |
|
2534 | 868 |
// Constant pool structure for invoke methods: |
869 |
enum { |
|
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
870 |
_imcp_invoke_name = 1, // utf8: 'invokeExact' or 'invokeGeneric' |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
871 |
_imcp_invoke_signature, // utf8: (variable Symbol*) |
8676
9098d4e927e1
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
8675
diff
changeset
|
872 |
_imcp_method_type_value, // string: (variable java/lang/invoke/MethodType, sic) |
2534 | 873 |
_imcp_limit |
874 |
}; |
|
875 |
||
876 |
oop methodOopDesc::method_handle_type() const { |
|
877 |
if (!is_method_handle_invoke()) { assert(false, "caller resp."); return NULL; } |
|
878 |
oop mt = constants()->resolved_string_at(_imcp_method_type_value); |
|
879 |
assert(mt->klass() == SystemDictionary::MethodType_klass(), ""); |
|
880 |
return mt; |
|
881 |
} |
|
882 |
||
883 |
jint* methodOopDesc::method_type_offsets_chain() { |
|
884 |
static jint pchase[] = { -1, -1, -1 }; |
|
885 |
if (pchase[0] == -1) { |
|
886 |
jint step0 = in_bytes(constants_offset()); |
|
887 |
jint step1 = (constantPoolOopDesc::header_size() + _imcp_method_type_value) * HeapWordSize; |
|
888 |
// do this in reverse to avoid races: |
|
889 |
OrderAccess::release_store(&pchase[1], step1); |
|
890 |
OrderAccess::release_store(&pchase[0], step0); |
|
891 |
} |
|
892 |
return pchase; |
|
893 |
} |
|
894 |
||
4581
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
895 |
//------------------------------------------------------------------------------ |
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
896 |
// methodOopDesc::is_method_handle_adapter |
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
897 |
// |
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
898 |
// Tests if this method is an internal adapter frame from the |
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
899 |
// MethodHandleCompiler. |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
900 |
// Must be consistent with MethodHandleCompiler::get_method_oop(). |
4581
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
901 |
bool methodOopDesc::is_method_handle_adapter() const { |
6064
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
902 |
if (is_synthetic() && |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
903 |
!is_native() && // has code from MethodHandleCompiler |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
904 |
is_method_handle_invoke_name(name()) && |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
905 |
MethodHandleCompiler::klass_is_method_handle_adapter_holder(method_holder())) { |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
906 |
assert(!is_method_handle_invoke(), "disjoint"); |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
907 |
return true; |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
908 |
} else { |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
909 |
return false; |
71e316283a85
6969574: invokedynamic call sites deoptimize instead of executing
jrose
parents:
5547
diff
changeset
|
910 |
} |
4581
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
911 |
} |
e89fbd1bcb3d
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
4571
diff
changeset
|
912 |
|
2534 | 913 |
methodHandle methodOopDesc::make_invoke_method(KlassHandle holder, |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
914 |
Symbol* name, |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
915 |
Symbol* signature, |
2534 | 916 |
Handle method_type, TRAPS) { |
917 |
methodHandle empty; |
|
918 |
||
919 |
assert(holder() == SystemDictionary::MethodHandle_klass(), |
|
920 |
"must be a JSR 292 magic type"); |
|
921 |
||
922 |
if (TraceMethodHandles) { |
|
923 |
tty->print("Creating invoke method for "); |
|
924 |
signature->print_value(); |
|
925 |
tty->cr(); |
|
926 |
} |
|
927 |
||
9134
189a8c094016
6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents:
9116
diff
changeset
|
928 |
// invariant: cp->symbol_at_put is preceded by a refcount increment (more usually a lookup) |
189a8c094016
6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents:
9116
diff
changeset
|
929 |
name->increment_refcount(); |
189a8c094016
6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents:
9116
diff
changeset
|
930 |
signature->increment_refcount(); |
189a8c094016
6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents:
9116
diff
changeset
|
931 |
|
10008
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
932 |
// record non-BCP method types in the constant pool |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
933 |
GrowableArray<KlassHandle>* extra_klasses = NULL; |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
934 |
for (int i = -1, len = java_lang_invoke_MethodType::ptype_count(method_type()); i < len; i++) { |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
935 |
oop ptype = (i == -1 |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
936 |
? java_lang_invoke_MethodType::rtype(method_type()) |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
937 |
: java_lang_invoke_MethodType::ptype(method_type(), i)); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
938 |
klassOop klass = check_non_bcp_klass(java_lang_Class::as_klassOop(ptype)); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
939 |
if (klass != NULL) { |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
940 |
if (extra_klasses == NULL) |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
941 |
extra_klasses = new GrowableArray<KlassHandle>(len+1); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
942 |
bool dup = false; |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
943 |
for (int j = 0; j < extra_klasses->length(); j++) { |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
944 |
if (extra_klasses->at(j) == klass) { dup = true; break; } |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
945 |
} |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
946 |
if (!dup) |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
947 |
extra_klasses->append(KlassHandle(THREAD, klass)); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
948 |
} |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
949 |
} |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
950 |
|
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
951 |
int extra_klass_count = (extra_klasses == NULL ? 0 : extra_klasses->length()); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
952 |
int cp_length = _imcp_limit + extra_klass_count; |
2534 | 953 |
constantPoolHandle cp; |
954 |
{ |
|
10008
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
955 |
constantPoolOop cp_oop = oopFactory::new_constantPool(cp_length, IsSafeConc, CHECK_(empty)); |
2534 | 956 |
cp = constantPoolHandle(THREAD, cp_oop); |
957 |
} |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
958 |
cp->symbol_at_put(_imcp_invoke_name, name); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
959 |
cp->symbol_at_put(_imcp_invoke_signature, signature); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
960 |
cp->string_at_put(_imcp_method_type_value, Universe::the_null_string()); |
10008
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
961 |
for (int j = 0; j < extra_klass_count; j++) { |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
962 |
KlassHandle klass = extra_klasses->at(j); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
963 |
cp->klass_at_put(_imcp_limit + j, klass()); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
964 |
} |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
965 |
cp->set_preresolution(); |
2534 | 966 |
cp->set_pool_holder(holder()); |
967 |
||
968 |
// set up the fancy stuff: |
|
969 |
cp->pseudo_string_at_put(_imcp_method_type_value, method_type()); |
|
970 |
methodHandle m; |
|
971 |
{ |
|
972 |
int flags_bits = (JVM_MH_INVOKE_BITS | JVM_ACC_PUBLIC | JVM_ACC_FINAL); |
|
973 |
methodOop m_oop = oopFactory::new_method(0, accessFlags_from(flags_bits), |
|
974 |
0, 0, 0, IsSafeConc, CHECK_(empty)); |
|
975 |
m = methodHandle(THREAD, m_oop); |
|
976 |
} |
|
977 |
m->set_constants(cp()); |
|
978 |
m->set_name_index(_imcp_invoke_name); |
|
979 |
m->set_signature_index(_imcp_invoke_signature); |
|
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
980 |
assert(is_method_handle_invoke_name(m->name()), ""); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
981 |
assert(m->signature() == signature, ""); |
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
982 |
assert(m->is_method_handle_invoke(), ""); |
2534 | 983 |
#ifdef CC_INTERP |
8326
752682831ac6
7018673: Zero: 6953144, 6990754 and 7009756 made some changes which broke Zero
twisti
parents:
8076
diff
changeset
|
984 |
ResultTypeFinder rtf(signature); |
2534 | 985 |
m->set_result_index(rtf.type()); |
986 |
#endif |
|
987 |
m->compute_size_of_parameters(THREAD); |
|
988 |
m->set_exception_table(Universe::the_empty_int_array()); |
|
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
989 |
m->init_intrinsic_id(); |
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
990 |
assert(m->intrinsic_id() == vmIntrinsics::_invokeExact || |
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
991 |
m->intrinsic_id() == vmIntrinsics::_invokeGeneric, "must be an invoker"); |
2534 | 992 |
|
993 |
// Finally, set up its entry points. |
|
994 |
assert(m->method_handle_type() == method_type(), ""); |
|
995 |
assert(m->can_be_statically_bound(), ""); |
|
996 |
m->set_vtable_index(methodOopDesc::nonvirtual_vtable_index); |
|
997 |
m->link_method(m, CHECK_(empty)); |
|
998 |
||
999 |
#ifdef ASSERT |
|
1000 |
// Make sure the pointer chase works. |
|
1001 |
address p = (address) m(); |
|
1002 |
for (jint* pchase = method_type_offsets_chain(); (*pchase) != -1; pchase++) { |
|
1003 |
p = *(address*)(p + (*pchase)); |
|
1004 |
} |
|
1005 |
assert((oop)p == method_type(), "pointer chase is correct"); |
|
1006 |
#endif |
|
1007 |
||
4094
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3273
diff
changeset
|
1008 |
if (TraceMethodHandles && (Verbose || WizardMode)) |
2534 | 1009 |
m->print_on(tty); |
1010 |
||
1011 |
return m; |
|
1012 |
} |
|
1013 |
||
10008
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1014 |
klassOop methodOopDesc::check_non_bcp_klass(klassOop klass) { |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1015 |
if (klass != NULL && Klass::cast(klass)->class_loader() != NULL) { |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1016 |
if (Klass::cast(klass)->oop_is_objArray()) |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1017 |
klass = objArrayKlass::cast(klass)->bottom_klass(); |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1018 |
return klass; |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1019 |
} |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1020 |
return NULL; |
d84de97ad847
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
9972
diff
changeset
|
1021 |
} |
2534 | 1022 |
|
221
ec745a0fe922
6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents:
1
diff
changeset
|
1023 |
|
1 | 1024 |
methodHandle methodOopDesc:: clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length, |
1025 |
u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS) { |
|
1026 |
// Code below does not work for native methods - they should never get rewritten anyway |
|
1027 |
assert(!m->is_native(), "cannot rewrite native methods"); |
|
1028 |
// Allocate new methodOop |
|
1029 |
AccessFlags flags = m->access_flags(); |
|
1030 |
int checked_exceptions_len = m->checked_exceptions_length(); |
|
1031 |
int localvariable_len = m->localvariable_table_length(); |
|
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1032 |
// Allocate newm_oop with the is_conc_safe parameter set |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1033 |
// to IsUnsafeConc to indicate that newm_oop is not yet |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1034 |
// safe for concurrent processing by a GC. |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1035 |
methodOop newm_oop = oopFactory::new_method(new_code_length, |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1036 |
flags, |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1037 |
new_compressed_linenumber_size, |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1038 |
localvariable_len, |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1039 |
checked_exceptions_len, |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1040 |
IsUnsafeConc, |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1041 |
CHECK_(methodHandle())); |
1 | 1042 |
methodHandle newm (THREAD, newm_oop); |
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1043 |
NOT_PRODUCT(int nmsz = newm->is_parsable() ? newm->size() : -1;) |
1 | 1044 |
int new_method_size = newm->method_size(); |
1045 |
// Create a shallow copy of methodOopDesc part, but be careful to preserve the new constMethodOop |
|
1046 |
constMethodOop newcm = newm->constMethod(); |
|
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1047 |
NOT_PRODUCT(int ncmsz = newcm->is_parsable() ? newcm->size() : -1;) |
1 | 1048 |
int new_const_method_size = newm->constMethod()->object_size(); |
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1049 |
|
1 | 1050 |
memcpy(newm(), m(), sizeof(methodOopDesc)); |
1051 |
// Create shallow copy of constMethodOopDesc, but be careful to preserve the methodOop |
|
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1052 |
// is_conc_safe is set to false because that is the value of |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1053 |
// is_conc_safe initialzied into newcm and the copy should |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1054 |
// not overwrite that value. During the window during which it is |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1055 |
// tagged as unsafe, some extra work could be needed during precleaning |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1056 |
// or concurrent marking but those phases will be correct. Setting and |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1057 |
// resetting is done in preference to a careful copying into newcm to |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1058 |
// avoid having to know the precise layout of a constMethodOop. |
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1059 |
m->constMethod()->set_is_conc_safe(oopDesc::IsUnsafeConc); |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1060 |
assert(m->constMethod()->is_parsable(), "Should remain parsable"); |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1061 |
|
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1062 |
// NOTE: this is a reachable object that transiently signals "conc_unsafe" |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1063 |
// However, no allocations are done during this window |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1064 |
// during which it is tagged conc_unsafe, so we are assured that any concurrent |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1065 |
// thread will not wait forever for the object to revert to "conc_safe". |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1066 |
// Further, any such conc_unsafe object will indicate a stable size |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1067 |
// through the transition. |
1 | 1068 |
memcpy(newcm, m->constMethod(), sizeof(constMethodOopDesc)); |
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1069 |
m->constMethod()->set_is_conc_safe(oopDesc::IsSafeConc); |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1070 |
assert(m->constMethod()->is_parsable(), "Should remain parsable"); |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1071 |
|
1 | 1072 |
// Reset correct method/const method, method size, and parameter info |
1073 |
newcm->set_method(newm()); |
|
1074 |
newm->set_constMethod(newcm); |
|
1075 |
assert(newcm->method() == newm(), "check"); |
|
1076 |
newm->constMethod()->set_code_size(new_code_length); |
|
1077 |
newm->constMethod()->set_constMethod_size(new_const_method_size); |
|
1078 |
newm->set_method_size(new_method_size); |
|
1079 |
assert(newm->code_size() == new_code_length, "check"); |
|
1080 |
assert(newm->checked_exceptions_length() == checked_exceptions_len, "check"); |
|
1081 |
assert(newm->localvariable_table_length() == localvariable_len, "check"); |
|
1082 |
// Copy new byte codes |
|
1083 |
memcpy(newm->code_base(), new_code, new_code_length); |
|
1084 |
// Copy line number table |
|
1085 |
if (new_compressed_linenumber_size > 0) { |
|
1086 |
memcpy(newm->compressed_linenumber_table(), |
|
1087 |
new_compressed_linenumber_table, |
|
1088 |
new_compressed_linenumber_size); |
|
1089 |
} |
|
1090 |
// Copy checked_exceptions |
|
1091 |
if (checked_exceptions_len > 0) { |
|
1092 |
memcpy(newm->checked_exceptions_start(), |
|
1093 |
m->checked_exceptions_start(), |
|
1094 |
checked_exceptions_len * sizeof(CheckedExceptionElement)); |
|
1095 |
} |
|
1096 |
// Copy local variable number table |
|
1097 |
if (localvariable_len > 0) { |
|
1098 |
memcpy(newm->localvariable_table_start(), |
|
1099 |
m->localvariable_table_start(), |
|
1100 |
localvariable_len * sizeof(LocalVariableTableElement)); |
|
1101 |
} |
|
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1102 |
|
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1103 |
// Only set is_conc_safe to true when changes to newcm are |
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1104 |
// complete. |
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1105 |
assert(!newm->is_parsable() || nmsz < 0 || newm->size() == nmsz, "newm->size() inconsistency"); |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1106 |
assert(!newcm->is_parsable() || ncmsz < 0 || newcm->size() == ncmsz, "newcm->size() inconsistency"); |
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
670
diff
changeset
|
1107 |
newcm->set_is_conc_safe(true); |
1 | 1108 |
return newm; |
1109 |
} |
|
1110 |
||
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1111 |
vmSymbols::SID methodOopDesc::klass_id_for_intrinsics(klassOop holder) { |
1 | 1112 |
// if loader is not the default loader (i.e., != NULL), we can't know the intrinsics |
1113 |
// because we are not loading from core libraries |
|
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1114 |
if (instanceKlass::cast(holder)->class_loader() != NULL) |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1115 |
return vmSymbols::NO_SID; // regardless of name, no intrinsics here |
1 | 1116 |
|
1117 |
// see if the klass name is well-known: |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1118 |
Symbol* klass_name = instanceKlass::cast(holder)->name(); |
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1119 |
return vmSymbols::find_sid(klass_name); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1120 |
} |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1121 |
|
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1122 |
void methodOopDesc::init_intrinsic_id() { |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1123 |
assert(_intrinsic_id == vmIntrinsics::_none, "do this just once"); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1124 |
const uintptr_t max_id_uint = right_n_bits((int)(sizeof(_intrinsic_id) * BitsPerByte)); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1125 |
assert((uintptr_t)vmIntrinsics::ID_LIMIT <= max_id_uint, "else fix size"); |
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1126 |
assert(intrinsic_id_size_in_bytes() == sizeof(_intrinsic_id), ""); |
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1127 |
|
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1128 |
// the klass name is well-known: |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1129 |
vmSymbols::SID klass_id = klass_id_for_intrinsics(method_holder()); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1130 |
assert(klass_id != vmSymbols::NO_SID, "caller responsibility"); |
1 | 1131 |
|
1132 |
// ditto for method and signature: |
|
1133 |
vmSymbols::SID name_id = vmSymbols::find_sid(name()); |
|
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1134 |
if (name_id == vmSymbols::NO_SID) return; |
1 | 1135 |
vmSymbols::SID sig_id = vmSymbols::find_sid(signature()); |
8676
9098d4e927e1
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
8675
diff
changeset
|
1136 |
if (klass_id != vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_MethodHandle) |
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1137 |
&& sig_id == vmSymbols::NO_SID) return; |
1 | 1138 |
jshort flags = access_flags().as_short(); |
1139 |
||
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1140 |
vmIntrinsics::ID id = vmIntrinsics::find_id(klass_id, name_id, sig_id, flags); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1141 |
if (id != vmIntrinsics::_none) { |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1142 |
set_intrinsic_id(id); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1143 |
return; |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1144 |
} |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1145 |
|
1 | 1146 |
// A few slightly irregular cases: |
1147 |
switch (klass_id) { |
|
1148 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_StrictMath): |
|
1149 |
// Second chance: check in regular Math. |
|
1150 |
switch (name_id) { |
|
1151 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(min_name): |
|
1152 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(max_name): |
|
1153 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(sqrt_name): |
|
1154 |
// pretend it is the corresponding method in the non-strict class: |
|
1155 |
klass_id = vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_Math); |
|
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1156 |
id = vmIntrinsics::find_id(klass_id, name_id, sig_id, flags); |
1 | 1157 |
break; |
1158 |
} |
|
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1159 |
break; |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1160 |
|
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1161 |
// Signature-polymorphic methods: MethodHandle.invoke*, InvokeDynamic.*. |
8676
9098d4e927e1
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
8675
diff
changeset
|
1162 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_MethodHandle): |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1163 |
if (is_static() || !is_native()) break; |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1164 |
switch (name_id) { |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1165 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(invokeGeneric_name): |
9116 | 1166 |
if (!AllowInvokeGeneric) break; |
1167 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(invoke_name): |
|
6463
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1168 |
id = vmIntrinsics::_invokeGeneric; |
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1169 |
break; |
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1170 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(invokeExact_name): |
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1171 |
id = vmIntrinsics::_invokeExact; |
f4362c8da849
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
6453
diff
changeset
|
1172 |
break; |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1173 |
} |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1174 |
break; |
8676
9098d4e927e1
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
8675
diff
changeset
|
1175 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_InvokeDynamic): |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1176 |
if (!is_static() || !is_native()) break; |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1177 |
id = vmIntrinsics::_invokeDynamic; |
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5419
diff
changeset
|
1178 |
break; |
1 | 1179 |
} |
1180 |
||
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1181 |
if (id != vmIntrinsics::_none) { |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1182 |
// Set up its iid. It is an alias method. |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1183 |
set_intrinsic_id(id); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1184 |
return; |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2570
diff
changeset
|
1185 |
} |
1 | 1186 |
} |
1187 |
||
1188 |
// These two methods are static since a GC may move the methodOopDesc |
|
1189 |
bool methodOopDesc::load_signature_classes(methodHandle m, TRAPS) { |
|
1190 |
bool sig_is_loaded = true; |
|
1191 |
Handle class_loader(THREAD, instanceKlass::cast(m->method_holder())->class_loader()); |
|
1192 |
Handle protection_domain(THREAD, Klass::cast(m->method_holder())->protection_domain()); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1193 |
ResourceMark rm(THREAD); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1194 |
Symbol* signature = m->signature(); |
1 | 1195 |
for(SignatureStream ss(signature); !ss.is_done(); ss.next()) { |
1196 |
if (ss.is_object()) { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1197 |
Symbol* sym = ss.as_symbol(CHECK_(false)); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1198 |
Symbol* name = sym; |
1 | 1199 |
klassOop klass = SystemDictionary::resolve_or_null(name, class_loader, |
1200 |
protection_domain, THREAD); |
|
351
74ef5746f624
6624474: Server compiler generates unexpected LinkageError
rasbold
parents:
221
diff
changeset
|
1201 |
// We are loading classes eagerly. If a ClassNotFoundException or |
74ef5746f624
6624474: Server compiler generates unexpected LinkageError
rasbold
parents:
221
diff
changeset
|
1202 |
// a LinkageError was generated, be sure to ignore it. |
1 | 1203 |
if (HAS_PENDING_EXCEPTION) { |
4571 | 1204 |
if (PENDING_EXCEPTION->is_a(SystemDictionary::ClassNotFoundException_klass()) || |
1205 |
PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) { |
|
1 | 1206 |
CLEAR_PENDING_EXCEPTION; |
1207 |
} else { |
|
1208 |
return false; |
|
1209 |
} |
|
1210 |
} |
|
1211 |
if( klass == NULL) { sig_is_loaded = false; } |
|
1212 |
} |
|
1213 |
} |
|
1214 |
return sig_is_loaded; |
|
1215 |
} |
|
1216 |
||
1217 |
bool methodOopDesc::has_unloaded_classes_in_signature(methodHandle m, TRAPS) { |
|
1218 |
Handle class_loader(THREAD, instanceKlass::cast(m->method_holder())->class_loader()); |
|
1219 |
Handle protection_domain(THREAD, Klass::cast(m->method_holder())->protection_domain()); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1220 |
ResourceMark rm(THREAD); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1221 |
Symbol* signature = m->signature(); |
1 | 1222 |
for(SignatureStream ss(signature); !ss.is_done(); ss.next()) { |
1223 |
if (ss.type() == T_OBJECT) { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1224 |
Symbol* name = ss.as_symbol_or_null(); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1225 |
if (name == NULL) return true; |
1 | 1226 |
klassOop klass = SystemDictionary::find(name, class_loader, protection_domain, THREAD); |
1227 |
if (klass == NULL) return true; |
|
1228 |
} |
|
1229 |
} |
|
1230 |
return false; |
|
1231 |
} |
|
1232 |
||
1233 |
// Exposed so field engineers can debug VM |
|
1234 |
void methodOopDesc::print_short_name(outputStream* st) { |
|
1235 |
ResourceMark rm; |
|
1236 |
#ifdef PRODUCT |
|
1237 |
st->print(" %s::", method_holder()->klass_part()->external_name()); |
|
1238 |
#else |
|
1239 |
st->print(" %s::", method_holder()->klass_part()->internal_name()); |
|
1240 |
#endif |
|
1241 |
name()->print_symbol_on(st); |
|
1242 |
if (WizardMode) signature()->print_symbol_on(st); |
|
1243 |
} |
|
1244 |
||
1245 |
// This is only done during class loading, so it is OK to assume method_idnum matches the methods() array |
|
1246 |
static void reorder_based_on_method_index(objArrayOop methods, |
|
1247 |
objArrayOop annotations, |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1248 |
GrowableArray<oop>* temp_array) { |
1 | 1249 |
if (annotations == NULL) { |
1250 |
return; |
|
1251 |
} |
|
1252 |
||
1253 |
int length = methods->length(); |
|
1254 |
int i; |
|
1255 |
// Copy to temp array |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1256 |
temp_array->clear(); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1257 |
for (i = 0; i < length; i++) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1258 |
temp_array->append(annotations->obj_at(i)); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1259 |
} |
1 | 1260 |
|
1261 |
// Copy back using old method indices |
|
1262 |
for (i = 0; i < length; i++) { |
|
1263 |
methodOop m = (methodOop) methods->obj_at(i); |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1264 |
annotations->obj_at_put(i, temp_array->at(m->method_idnum())); |
1 | 1265 |
} |
1266 |
} |
|
1267 |
||
10002 | 1268 |
// Comparer for sorting an object array containing |
1269 |
// methodOops. |
|
1270 |
template <class T> |
|
1271 |
static int method_comparator(T a, T b) { |
|
1272 |
methodOop m = (methodOop)oopDesc::decode_heap_oop_not_null(a); |
|
1273 |
methodOop n = (methodOop)oopDesc::decode_heap_oop_not_null(b); |
|
1274 |
return m->name()->fast_compare(n->name()); |
|
1275 |
} |
|
1 | 1276 |
|
1277 |
// This is only done during class loading, so it is OK to assume method_idnum matches the methods() array |
|
1278 |
void methodOopDesc::sort_methods(objArrayOop methods, |
|
1279 |
objArrayOop methods_annotations, |
|
1280 |
objArrayOop methods_parameter_annotations, |
|
1281 |
objArrayOop methods_default_annotations, |
|
1282 |
bool idempotent) { |
|
1283 |
int length = methods->length(); |
|
1284 |
if (length > 1) { |
|
1285 |
bool do_annotations = false; |
|
1286 |
if (methods_annotations != NULL || |
|
1287 |
methods_parameter_annotations != NULL || |
|
1288 |
methods_default_annotations != NULL) { |
|
1289 |
do_annotations = true; |
|
1290 |
} |
|
1291 |
if (do_annotations) { |
|
1292 |
// Remember current method ordering so we can reorder annotations |
|
1293 |
for (int i = 0; i < length; i++) { |
|
1294 |
methodOop m = (methodOop) methods->obj_at(i); |
|
1295 |
m->set_method_idnum(i); |
|
1296 |
} |
|
1297 |
} |
|
10002 | 1298 |
{ |
1299 |
No_Safepoint_Verifier nsv; |
|
1300 |
if (UseCompressedOops) { |
|
1301 |
QuickSort::sort<narrowOop>((narrowOop*)(methods->base()), length, method_comparator<narrowOop>, idempotent); |
|
1302 |
} else { |
|
1303 |
QuickSort::sort<oop>((oop*)(methods->base()), length, method_comparator<oop>, idempotent); |
|
1 | 1304 |
} |
10002 | 1305 |
if (UseConcMarkSweepGC) { |
1306 |
// For CMS we need to dirty the cards for the array |
|
1307 |
BarrierSet* bs = Universe::heap()->barrier_set(); |
|
1308 |
assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); |
|
1309 |
bs->write_ref_array(methods->base(), length); |
|
1310 |
} |
|
1 | 1311 |
} |
1312 |
||
1313 |
// Sort annotations if necessary |
|
1314 |
assert(methods_annotations == NULL || methods_annotations->length() == methods->length(), ""); |
|
1315 |
assert(methods_parameter_annotations == NULL || methods_parameter_annotations->length() == methods->length(), ""); |
|
1316 |
assert(methods_default_annotations == NULL || methods_default_annotations->length() == methods->length(), ""); |
|
1317 |
if (do_annotations) { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1318 |
ResourceMark rm; |
1 | 1319 |
// Allocate temporary storage |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
351
diff
changeset
|
1320 |
GrowableArray<oop>* temp_array = new GrowableArray<oop>(length); |
1 | 1321 |
reorder_based_on_method_index(methods, methods_annotations, temp_array); |
1322 |
reorder_based_on_method_index(methods, methods_parameter_annotations, temp_array); |
|
1323 |
reorder_based_on_method_index(methods, methods_default_annotations, temp_array); |
|
1324 |
} |
|
1325 |
||
1326 |
// Reset method ordering |
|
1327 |
for (int i = 0; i < length; i++) { |
|
1328 |
methodOop m = (methodOop) methods->obj_at(i); |
|
1329 |
m->set_method_idnum(i); |
|
1330 |
} |
|
1331 |
} |
|
1332 |
} |
|
1333 |
||
1334 |
||
1335 |
//----------------------------------------------------------------------------------- |
|
1336 |
// Non-product code |
|
1337 |
||
1338 |
#ifndef PRODUCT |
|
1339 |
class SignatureTypePrinter : public SignatureTypeNames { |
|
1340 |
private: |
|
1341 |
outputStream* _st; |
|
1342 |
bool _use_separator; |
|
1343 |
||
1344 |
void type_name(const char* name) { |
|
1345 |
if (_use_separator) _st->print(", "); |
|
1346 |
_st->print(name); |
|
1347 |
_use_separator = true; |
|
1348 |
} |
|
1349 |
||
1350 |
public: |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7913
diff
changeset
|
1351 |
SignatureTypePrinter(Symbol* signature, outputStream* st) : SignatureTypeNames(signature) { |
1 | 1352 |
_st = st; |
1353 |
_use_separator = false; |
|
1354 |
} |
|
1355 |
||
1356 |
void print_parameters() { _use_separator = false; iterate_parameters(); } |
|
1357 |
void print_returntype() { _use_separator = false; iterate_returntype(); } |
|
1358 |
}; |
|
1359 |
||
1360 |
||
1361 |
void methodOopDesc::print_name(outputStream* st) { |
|
1362 |
Thread *thread = Thread::current(); |
|
1363 |
ResourceMark rm(thread); |
|
1364 |
SignatureTypePrinter sig(signature(), st); |
|
1365 |
st->print("%s ", is_static() ? "static" : "virtual"); |
|
1366 |
sig.print_returntype(); |
|
1367 |
st->print(" %s.", method_holder()->klass_part()->internal_name()); |
|
1368 |
name()->print_symbol_on(st); |
|
1369 |
st->print("("); |
|
1370 |
sig.print_parameters(); |
|
1371 |
st->print(")"); |
|
1372 |
} |
|
1373 |
||
1374 |
||
1375 |
void methodOopDesc::print_codes_on(outputStream* st) const { |
|
1376 |
print_codes_on(0, code_size(), st); |
|
1377 |
} |
|
1378 |
||
1379 |
void methodOopDesc::print_codes_on(int from, int to, outputStream* st) const { |
|
1380 |
Thread *thread = Thread::current(); |
|
1381 |
ResourceMark rm(thread); |
|
1382 |
methodHandle mh (thread, (methodOop)this); |
|
1383 |
BytecodeStream s(mh); |
|
1384 |
s.set_interval(from, to); |
|
1385 |
BytecodeTracer::set_closure(BytecodeTracer::std_closure()); |
|
1386 |
while (s.next() >= 0) BytecodeTracer::trace(mh, s.bcp(), st); |
|
1387 |
} |
|
1388 |
#endif // not PRODUCT |
|
1389 |
||
1390 |
||
1391 |
// Simple compression of line number tables. We use a regular compressed stream, except that we compress deltas |
|
1392 |
// between (bci,line) pairs since they are smaller. If (bci delta, line delta) fits in (5-bit unsigned, 3-bit unsigned) |
|
1393 |
// we save it as one byte, otherwise we write a 0xFF escape character and use regular compression. 0x0 is used |
|
1394 |
// as end-of-stream terminator. |
|
1395 |
||
1396 |
void CompressedLineNumberWriteStream::write_pair_regular(int bci_delta, int line_delta) { |
|
1397 |
// bci and line number does not compress into single byte. |
|
1398 |
// Write out escape character and use regular compression for bci and line number. |
|
1399 |
write_byte((jubyte)0xFF); |
|
1400 |
write_signed_int(bci_delta); |
|
1401 |
write_signed_int(line_delta); |
|
1402 |
} |
|
1403 |
||
1404 |
// See comment in methodOop.hpp which explains why this exists. |
|
8303
81a0b8663748
7017824: Add support for creating 64-bit Visual Studio projects
sla
parents:
8076
diff
changeset
|
1405 |
#if defined(_M_AMD64) && _MSC_VER >= 1400 |
1 | 1406 |
#pragma optimize("", off) |
1407 |
void CompressedLineNumberWriteStream::write_pair(int bci, int line) { |
|
1408 |
write_pair_inline(bci, line); |
|
1409 |
} |
|
1410 |
#pragma optimize("", on) |
|
1411 |
#endif |
|
1412 |
||
1413 |
CompressedLineNumberReadStream::CompressedLineNumberReadStream(u_char* buffer) : CompressedReadStream(buffer) { |
|
1414 |
_bci = 0; |
|
1415 |
_line = 0; |
|
1416 |
}; |
|
1417 |
||
1418 |
||
1419 |
bool CompressedLineNumberReadStream::read_pair() { |
|
1420 |
jubyte next = read_byte(); |
|
1421 |
// Check for terminator |
|
1422 |
if (next == 0) return false; |
|
1423 |
if (next == 0xFF) { |
|
1424 |
// Escape character, regular compression used |
|
1425 |
_bci += read_signed_int(); |
|
1426 |
_line += read_signed_int(); |
|
1427 |
} else { |
|
1428 |
// Single byte compression used |
|
1429 |
_bci += next >> 3; |
|
1430 |
_line += next & 0x7; |
|
1431 |
} |
|
1432 |
return true; |
|
1433 |
} |
|
1434 |
||
1435 |
||
7913 | 1436 |
Bytecodes::Code methodOopDesc::orig_bytecode_at(int bci) const { |
1 | 1437 |
BreakpointInfo* bp = instanceKlass::cast(method_holder())->breakpoints(); |
1438 |
for (; bp != NULL; bp = bp->next()) { |
|
1439 |
if (bp->match(this, bci)) { |
|
1440 |
return bp->orig_bytecode(); |
|
1441 |
} |
|
1442 |
} |
|
1443 |
ShouldNotReachHere(); |
|
1444 |
return Bytecodes::_shouldnotreachhere; |
|
1445 |
} |
|
1446 |
||
1447 |
void methodOopDesc::set_orig_bytecode_at(int bci, Bytecodes::Code code) { |
|
1448 |
assert(code != Bytecodes::_breakpoint, "cannot patch breakpoints this way"); |
|
1449 |
BreakpointInfo* bp = instanceKlass::cast(method_holder())->breakpoints(); |
|
1450 |
for (; bp != NULL; bp = bp->next()) { |
|
1451 |
if (bp->match(this, bci)) { |
|
1452 |
bp->set_orig_bytecode(code); |
|
1453 |
// and continue, in case there is more than one |
|
1454 |
} |
|
1455 |
} |
|
1456 |
} |
|
1457 |
||
1458 |
void methodOopDesc::set_breakpoint(int bci) { |
|
1459 |
instanceKlass* ik = instanceKlass::cast(method_holder()); |
|
1460 |
BreakpointInfo *bp = new BreakpointInfo(this, bci); |
|
1461 |
bp->set_next(ik->breakpoints()); |
|
1462 |
ik->set_breakpoints(bp); |
|
1463 |
// do this last: |
|
1464 |
bp->set(this); |
|
1465 |
} |
|
1466 |
||
1467 |
static void clear_matches(methodOop m, int bci) { |
|
1468 |
instanceKlass* ik = instanceKlass::cast(m->method_holder()); |
|
1469 |
BreakpointInfo* prev_bp = NULL; |
|
1470 |
BreakpointInfo* next_bp; |
|
1471 |
for (BreakpointInfo* bp = ik->breakpoints(); bp != NULL; bp = next_bp) { |
|
1472 |
next_bp = bp->next(); |
|
1473 |
// bci value of -1 is used to delete all breakpoints in method m (ex: clear_all_breakpoint). |
|
1474 |
if (bci >= 0 ? bp->match(m, bci) : bp->match(m)) { |
|
1475 |
// do this first: |
|
1476 |
bp->clear(m); |
|
1477 |
// unhook it |
|
1478 |
if (prev_bp != NULL) |
|
1479 |
prev_bp->set_next(next_bp); |
|
1480 |
else |
|
1481 |
ik->set_breakpoints(next_bp); |
|
1482 |
delete bp; |
|
1483 |
// When class is redefined JVMTI sets breakpoint in all versions of EMCP methods |
|
1484 |
// at same location. So we have multiple matching (method_index and bci) |
|
1485 |
// BreakpointInfo nodes in BreakpointInfo list. We should just delete one |
|
1486 |
// breakpoint for clear_breakpoint request and keep all other method versions |
|
1487 |
// BreakpointInfo for future clear_breakpoint request. |
|
1488 |
// bcivalue of -1 is used to clear all breakpoints (see clear_all_breakpoints) |
|
1489 |
// which is being called when class is unloaded. We delete all the Breakpoint |
|
1490 |
// information for all versions of method. We may not correctly restore the original |
|
1491 |
// bytecode in all method versions, but that is ok. Because the class is being unloaded |
|
1492 |
// so these methods won't be used anymore. |
|
1493 |
if (bci >= 0) { |
|
1494 |
break; |
|
1495 |
} |
|
1496 |
} else { |
|
1497 |
// This one is a keeper. |
|
1498 |
prev_bp = bp; |
|
1499 |
} |
|
1500 |
} |
|
1501 |
} |
|
1502 |
||
1503 |
void methodOopDesc::clear_breakpoint(int bci) { |
|
1504 |
assert(bci >= 0, ""); |
|
1505 |
clear_matches(this, bci); |
|
1506 |
} |
|
1507 |
||
1508 |
void methodOopDesc::clear_all_breakpoints() { |
|
1509 |
clear_matches(this, -1); |
|
1510 |
} |
|
1511 |
||
1512 |
||
6453 | 1513 |
int methodOopDesc::invocation_count() { |
1514 |
if (TieredCompilation) { |
|
1515 |
const methodDataOop mdo = method_data(); |
|
1516 |
if (invocation_counter()->carry() || ((mdo != NULL) ? mdo->invocation_counter()->carry() : false)) { |
|
1517 |
return InvocationCounter::count_limit; |
|
1518 |
} else { |
|
1519 |
return invocation_counter()->count() + ((mdo != NULL) ? mdo->invocation_counter()->count() : 0); |
|
1520 |
} |
|
1521 |
} else { |
|
1522 |
return invocation_counter()->count(); |
|
1523 |
} |
|
1524 |
} |
|
1525 |
||
1526 |
int methodOopDesc::backedge_count() { |
|
1527 |
if (TieredCompilation) { |
|
1528 |
const methodDataOop mdo = method_data(); |
|
1529 |
if (backedge_counter()->carry() || ((mdo != NULL) ? mdo->backedge_counter()->carry() : false)) { |
|
1530 |
return InvocationCounter::count_limit; |
|
1531 |
} else { |
|
1532 |
return backedge_counter()->count() + ((mdo != NULL) ? mdo->backedge_counter()->count() : 0); |
|
1533 |
} |
|
1534 |
} else { |
|
1535 |
return backedge_counter()->count(); |
|
1536 |
} |
|
1537 |
} |
|
1538 |
||
1539 |
int methodOopDesc::highest_comp_level() const { |
|
1540 |
methodDataOop mdo = method_data(); |
|
1541 |
if (mdo != NULL) { |
|
1542 |
return mdo->highest_comp_level(); |
|
1543 |
} else { |
|
1544 |
return CompLevel_none; |
|
1545 |
} |
|
1546 |
} |
|
1547 |
||
1548 |
int methodOopDesc::highest_osr_comp_level() const { |
|
1549 |
methodDataOop mdo = method_data(); |
|
1550 |
if (mdo != NULL) { |
|
1551 |
return mdo->highest_osr_comp_level(); |
|
1552 |
} else { |
|
1553 |
return CompLevel_none; |
|
1554 |
} |
|
1555 |
} |
|
1556 |
||
1557 |
void methodOopDesc::set_highest_comp_level(int level) { |
|
1558 |
methodDataOop mdo = method_data(); |
|
1559 |
if (mdo != NULL) { |
|
1560 |
mdo->set_highest_comp_level(level); |
|
1561 |
} |
|
1562 |
} |
|
1563 |
||
1564 |
void methodOopDesc::set_highest_osr_comp_level(int level) { |
|
1565 |
methodDataOop mdo = method_data(); |
|
1566 |
if (mdo != NULL) { |
|
1567 |
mdo->set_highest_osr_comp_level(level); |
|
1568 |
} |
|
1569 |
} |
|
1570 |
||
1 | 1571 |
BreakpointInfo::BreakpointInfo(methodOop m, int bci) { |
1572 |
_bci = bci; |
|
1573 |
_name_index = m->name_index(); |
|
1574 |
_signature_index = m->signature_index(); |
|
1575 |
_orig_bytecode = (Bytecodes::Code) *m->bcp_from(_bci); |
|
1576 |
if (_orig_bytecode == Bytecodes::_breakpoint) |
|
1577 |
_orig_bytecode = m->orig_bytecode_at(_bci); |
|
1578 |
_next = NULL; |
|
1579 |
} |
|
1580 |
||
1581 |
void BreakpointInfo::set(methodOop method) { |
|
1582 |
#ifdef ASSERT |
|
1583 |
{ |
|
1584 |
Bytecodes::Code code = (Bytecodes::Code) *method->bcp_from(_bci); |
|
1585 |
if (code == Bytecodes::_breakpoint) |
|
1586 |
code = method->orig_bytecode_at(_bci); |
|
1587 |
assert(orig_bytecode() == code, "original bytecode must be the same"); |
|
1588 |
} |
|
1589 |
#endif |
|
1590 |
*method->bcp_from(_bci) = Bytecodes::_breakpoint; |
|
1591 |
method->incr_number_of_breakpoints(); |
|
1592 |
SystemDictionary::notice_modification(); |
|
1593 |
{ |
|
1594 |
// Deoptimize all dependents on this method |
|
1595 |
Thread *thread = Thread::current(); |
|
1596 |
HandleMark hm(thread); |
|
1597 |
methodHandle mh(thread, method); |
|
1598 |
Universe::flush_dependents_on_method(mh); |
|
1599 |
} |
|
1600 |
} |
|
1601 |
||
1602 |
void BreakpointInfo::clear(methodOop method) { |
|
1603 |
*method->bcp_from(_bci) = orig_bytecode(); |
|
1604 |
assert(method->number_of_breakpoints() > 0, "must not go negative"); |
|
1605 |
method->decr_number_of_breakpoints(); |
|
1606 |
} |