Mercurial > hg > graal-compiler
view src/share/vm/oops/constMethodKlass.cpp @ 6494:df02fa2bce58
refactored all AMD64 specific HotSpot code in com.oracle.graal.hotspot.target.amd64 package
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Oct 2012 00:25:30 +0200 |
parents | 8150fa46d2ed |
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/* * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "gc_implementation/shared/markSweep.inline.hpp" #include "interpreter/interpreter.hpp" #include "memory/gcLocker.hpp" #include "memory/resourceArea.hpp" #include "oops/constMethodKlass.hpp" #include "oops/constMethodOop.hpp" #include "oops/oop.inline.hpp" #include "oops/oop.inline2.hpp" #include "runtime/handles.inline.hpp" klassOop constMethodKlass::create_klass(TRAPS) { constMethodKlass o; KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); // Make sure size calculation is right assert(k()->size() == align_object_size(header_size()), "wrong size for object"); //java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror return k(); } int constMethodKlass::oop_size(oop obj) const { assert(obj->is_constMethod(), "must be constMethod oop"); return constMethodOop(obj)->object_size(); } bool constMethodKlass::oop_is_parsable(oop obj) const { assert(obj->is_constMethod(), "must be constMethod oop"); return constMethodOop(obj)->object_is_parsable(); } bool constMethodKlass::oop_is_conc_safe(oop obj) const { assert(obj->is_constMethod(), "must be constMethod oop"); return constMethodOop(obj)->is_conc_safe(); } constMethodOop constMethodKlass::allocate(int byte_code_size, int compressed_line_number_size, int localvariable_table_length, int exception_table_length, int checked_exceptions_length, bool is_conc_safe, TRAPS) { int size = constMethodOopDesc::object_size(byte_code_size, compressed_line_number_size, localvariable_table_length, exception_table_length, checked_exceptions_length); KlassHandle h_k(THREAD, as_klassOop()); constMethodOop cm = (constMethodOop) CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); assert(!cm->is_parsable(), "Not yet safely parsable"); No_Safepoint_Verifier no_safepoint; cm->set_interpreter_kind(Interpreter::invalid); cm->init_fingerprint(); cm->set_constants(NULL); cm->set_stackmap_data(NULL); cm->set_code_size(byte_code_size); cm->set_constMethod_size(size); cm->set_inlined_tables_length(checked_exceptions_length, compressed_line_number_size, localvariable_table_length, exception_table_length); assert(cm->size() == size, "wrong size for object"); cm->set_is_conc_safe(is_conc_safe); cm->set_partially_loaded(); assert(cm->is_parsable(), "Is safely parsable by gc"); return cm; } void constMethodKlass::oop_follow_contents(oop obj) { assert (obj->is_constMethod(), "object must be constMethod"); constMethodOop cm = constMethodOop(obj); MarkSweep::mark_and_push(cm->adr_constants()); MarkSweep::mark_and_push(cm->adr_stackmap_data()); // Performance tweak: We skip iterating over the klass pointer since we // know that Universe::constMethodKlassObj never moves. } #ifndef SERIALGC void constMethodKlass::oop_follow_contents(ParCompactionManager* cm, oop obj) { assert (obj->is_constMethod(), "object must be constMethod"); constMethodOop cm_oop = constMethodOop(obj); PSParallelCompact::mark_and_push(cm, cm_oop->adr_constants()); PSParallelCompact::mark_and_push(cm, cm_oop->adr_stackmap_data()); // Performance tweak: We skip iterating over the klass pointer since we // know that Universe::constMethodKlassObj never moves. } #endif // SERIALGC int constMethodKlass::oop_oop_iterate(oop obj, OopClosure* blk) { assert (obj->is_constMethod(), "object must be constMethod"); constMethodOop cm = constMethodOop(obj); blk->do_oop(cm->adr_constants()); blk->do_oop(cm->adr_stackmap_data()); // Get size before changing pointers. // Don't call size() or oop_size() since that is a virtual call. int size = cm->object_size(); return size; } int constMethodKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { assert (obj->is_constMethod(), "object must be constMethod"); constMethodOop cm = constMethodOop(obj); oop* adr; adr = cm->adr_constants(); if (mr.contains(adr)) blk->do_oop(adr); adr = cm->adr_stackmap_data(); if (mr.contains(adr)) blk->do_oop(adr); // Get size before changing pointers. // Don't call size() or oop_size() since that is a virtual call. int size = cm->object_size(); // Performance tweak: We skip iterating over the klass pointer since we // know that Universe::constMethodKlassObj never moves. return size; } int constMethodKlass::oop_adjust_pointers(oop obj) { assert(obj->is_constMethod(), "should be constMethod"); constMethodOop cm = constMethodOop(obj); MarkSweep::adjust_pointer(cm->adr_constants()); MarkSweep::adjust_pointer(cm->adr_stackmap_data()); // Get size before changing pointers. // Don't call size() or oop_size() since that is a virtual call. int size = cm->object_size(); // Performance tweak: We skip iterating over the klass pointer since we // know that Universe::constMethodKlassObj never moves. return size; } #ifndef SERIALGC void constMethodKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { assert(obj->is_constMethod(), "should be constMethod"); } int constMethodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { assert(obj->is_constMethod(), "should be constMethod"); constMethodOop cm_oop = constMethodOop(obj); oop* const beg_oop = cm_oop->oop_block_beg(); oop* const end_oop = cm_oop->oop_block_end(); for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { PSParallelCompact::adjust_pointer(cur_oop); } return cm_oop->object_size(); } #endif // SERIALGC // Printing void constMethodKlass::oop_print_on(oop obj, outputStream* st) { ResourceMark rm; assert(obj->is_constMethod(), "must be constMethod"); Klass::oop_print_on(obj, st); constMethodOop m = constMethodOop(obj); st->print(" - constants: " INTPTR_FORMAT " ", (address)m->constants()); m->constants()->print_value_on(st); st->cr(); if (m->has_stackmap_table()) { st->print(" - stackmap data: "); m->stackmap_data()->print_value_on(st); st->cr(); } } // Short version of printing constMethodOop - just print the name of the // method it belongs to. void constMethodKlass::oop_print_value_on(oop obj, outputStream* st) { assert(obj->is_constMethod(), "must be constMethod"); constMethodOop m = constMethodOop(obj); st->print(" const part of method " ); m->method()->print_value_on(st); } const char* constMethodKlass::internal_name() const { return "{constMethod}"; } // Verification void constMethodKlass::oop_verify_on(oop obj, outputStream* st) { Klass::oop_verify_on(obj, st); guarantee(obj->is_constMethod(), "object must be constMethod"); constMethodOop m = constMethodOop(obj); guarantee(m->is_perm(), "should be in permspace"); // Verification can occur during oop construction before the method or // other fields have been initialized. if (!obj->partially_loaded()) { guarantee(m->constants()->is_perm(), "should be in permspace"); guarantee(m->constants()->is_constantPool(), "should be constant pool"); typeArrayOop stackmap_data = m->stackmap_data(); guarantee(stackmap_data == NULL || stackmap_data->is_perm(), "should be in permspace"); address m_end = (address)((oop*) m + m->size()); address compressed_table_start = m->code_end(); guarantee(compressed_table_start <= m_end, "invalid method layout"); address compressed_table_end = compressed_table_start; // Verify line number table if (m->has_linenumber_table()) { CompressedLineNumberReadStream stream(m->compressed_linenumber_table()); while (stream.read_pair()) { guarantee(stream.bci() >= 0 && stream.bci() <= m->code_size(), "invalid bci in line number table"); } compressed_table_end += stream.position(); } guarantee(compressed_table_end <= m_end, "invalid method layout"); // Verify checked exceptions, exception table and local variable tables if (m->has_checked_exceptions()) { u2* addr = m->checked_exceptions_length_addr(); guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); } if (m->has_exception_handler()) { u2* addr = m->exception_table_length_addr(); guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); } if (m->has_localvariable_table()) { u2* addr = m->localvariable_table_length_addr(); guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); } // Check compressed_table_end relative to uncompressed_table_start u2* uncompressed_table_start; if (m->has_localvariable_table()) { uncompressed_table_start = (u2*) m->localvariable_table_start(); } else if (m->has_exception_handler()) { uncompressed_table_start = (u2*) m->exception_table_start(); } else if (m->has_checked_exceptions()) { uncompressed_table_start = (u2*) m->checked_exceptions_start(); } else { uncompressed_table_start = (u2*) m_end; } int gap = (intptr_t) uncompressed_table_start - (intptr_t) compressed_table_end; int max_gap = align_object_size(1)*BytesPerWord; guarantee(gap >= 0 && gap < max_gap, "invalid method layout"); } } bool constMethodKlass::oop_partially_loaded(oop obj) const { assert(obj->is_constMethod(), "object must be klass"); constMethodOop m = constMethodOop(obj); // check whether stackmap_data points to self (flag for partially loaded) return m->stackmap_data() == (typeArrayOop)obj; } // The exception_table is the last field set when loading an object. void constMethodKlass::oop_set_partially_loaded(oop obj) { assert(obj->is_constMethod(), "object must be klass"); constMethodOop m = constMethodOop(obj); // Temporarily set stackmap_data to point to self m->set_stackmap_data((typeArrayOop)obj); }