1 /*
2 * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
1779
1780 return cpool;
1781 }
1782
1783
1784 methodHandle MethodHandleCompiler::get_method_oop(TRAPS) {
1785 methodHandle empty;
1786 // Create a method that holds the generated bytecode. invokedynamic
1787 // has no receiver, normal MH calls do.
1788 int flags_bits;
1789 if (for_invokedynamic())
1790 flags_bits = (/*JVM_MH_INVOKE_BITS |*/ JVM_ACC_PUBLIC | JVM_ACC_FINAL | JVM_ACC_SYNTHETIC | JVM_ACC_STATIC);
1791 else
1792 flags_bits = (/*JVM_MH_INVOKE_BITS |*/ JVM_ACC_PUBLIC | JVM_ACC_FINAL | JVM_ACC_SYNTHETIC);
1793
1794 // Create a new method
1795 methodHandle m;
1796 {
1797 methodOop m_oop = oopFactory::new_method(bytecode_length(),
1798 accessFlags_from(flags_bits),
1799 0, 0, 0, oopDesc::IsSafeConc, CHECK_(empty));
1800 m = methodHandle(THREAD, m_oop);
1801 }
1802
1803 constantPoolHandle cpool = get_constant_pool(CHECK_(empty));
1804 m->set_constants(cpool());
1805
1806 m->set_name_index(_name_index);
1807 m->set_signature_index(_signature_index);
1808
1809 m->set_code((address) bytecode());
1810
1811 m->set_max_stack(_max_stack);
1812 m->set_max_locals(max_locals());
1813 m->set_size_of_parameters(_num_params);
1814
1815 typeArrayHandle exception_handlers(THREAD, Universe::the_empty_int_array());
1816 m->set_exception_table(exception_handlers());
1817
1818 // Rewrite the method and set up the constant pool cache.
1819 objArrayOop m_array = oopFactory::new_system_objArray(1, CHECK_(empty));
1820 objArrayHandle methods(THREAD, m_array);
1821 methods->obj_at_put(0, m());
1822 Rewriter::rewrite(_target_klass(), cpool, methods, CHECK_(empty)); // Use fake class.
1823 Rewriter::relocate_and_link(_target_klass(), methods, CHECK_(empty)); // Use fake class.
1824
1825 // Pre-resolve selected CP cache entries, to avoid problems with class loader scoping.
1826 constantPoolCacheHandle cpc(THREAD, cpool->cache());
1827 for (int i = 0; i < cpc->length(); i++) {
1828 ConstantPoolCacheEntry* e = cpc->entry_at(i);
1829 assert(!e->is_secondary_entry(), "no indy instructions in here, yet");
1830 int constant_pool_index = e->constant_pool_index();
1831 ConstantValue* cv = _constants.at(constant_pool_index);
1832 if (!cv->has_linkage()) continue;
1833 methodHandle m = cv->linkage();
1834 int index;
1835 switch (cv->tag()) {
1836 case JVM_CONSTANT_Methodref:
|
1 /*
2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
1779
1780 return cpool;
1781 }
1782
1783
1784 methodHandle MethodHandleCompiler::get_method_oop(TRAPS) {
1785 methodHandle empty;
1786 // Create a method that holds the generated bytecode. invokedynamic
1787 // has no receiver, normal MH calls do.
1788 int flags_bits;
1789 if (for_invokedynamic())
1790 flags_bits = (/*JVM_MH_INVOKE_BITS |*/ JVM_ACC_PUBLIC | JVM_ACC_FINAL | JVM_ACC_SYNTHETIC | JVM_ACC_STATIC);
1791 else
1792 flags_bits = (/*JVM_MH_INVOKE_BITS |*/ JVM_ACC_PUBLIC | JVM_ACC_FINAL | JVM_ACC_SYNTHETIC);
1793
1794 // Create a new method
1795 methodHandle m;
1796 {
1797 methodOop m_oop = oopFactory::new_method(bytecode_length(),
1798 accessFlags_from(flags_bits),
1799 0, 0, 0, 0, oopDesc::IsSafeConc, CHECK_(empty));
1800 m = methodHandle(THREAD, m_oop);
1801 }
1802
1803 constantPoolHandle cpool = get_constant_pool(CHECK_(empty));
1804 m->set_constants(cpool());
1805
1806 m->set_name_index(_name_index);
1807 m->set_signature_index(_signature_index);
1808
1809 m->set_code((address) bytecode());
1810
1811 m->set_max_stack(_max_stack);
1812 m->set_max_locals(max_locals());
1813 m->set_size_of_parameters(_num_params);
1814
1815 // Rewrite the method and set up the constant pool cache.
1816 objArrayOop m_array = oopFactory::new_system_objArray(1, CHECK_(empty));
1817 objArrayHandle methods(THREAD, m_array);
1818 methods->obj_at_put(0, m());
1819 Rewriter::rewrite(_target_klass(), cpool, methods, CHECK_(empty)); // Use fake class.
1820 Rewriter::relocate_and_link(_target_klass(), methods, CHECK_(empty)); // Use fake class.
1821
1822 // Pre-resolve selected CP cache entries, to avoid problems with class loader scoping.
1823 constantPoolCacheHandle cpc(THREAD, cpool->cache());
1824 for (int i = 0; i < cpc->length(); i++) {
1825 ConstantPoolCacheEntry* e = cpc->entry_at(i);
1826 assert(!e->is_secondary_entry(), "no indy instructions in here, yet");
1827 int constant_pool_index = e->constant_pool_index();
1828 ConstantValue* cv = _constants.at(constant_pool_index);
1829 if (!cv->has_linkage()) continue;
1830 methodHandle m = cv->linkage();
1831 int index;
1832 switch (cv->tag()) {
1833 case JVM_CONSTANT_Methodref:
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