Mercurial > hg > graal-compiler
view src/cpu/zero/vm/methodHandles_zero.cpp @ 9179:11516ac4fbda
hasNoFinalizer-assumption: generate class files for testcase
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Wed, 17 Apr 2013 15:08:15 +0000 |
parents | a3e2f723f2a5 |
children |
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/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2009, 2010, 2011 Red Hat, Inc. * 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 "interpreter/interpreterGenerator.hpp" #include "interpreter/interpreter.hpp" #include "memory/allocation.inline.hpp" #include "prims/methodHandles.hpp" void MethodHandles::invoke_target(Method* method, TRAPS) { JavaThread *thread = (JavaThread *) THREAD; ZeroStack *stack = thread->zero_stack(); InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); interpreterState istate = frame->interpreter_state(); // Trim back the stack to put the parameters at the top stack->set_sp(istate->stack() + 1); Interpreter::invoke_method(method, method->from_interpreted_entry(), THREAD); // Convert the result istate->set_stack(stack->sp() - 1); } oop MethodHandles::popFromStack(TRAPS) { JavaThread *thread = (JavaThread *) THREAD; InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); interpreterState istate = frame->interpreter_state(); intptr_t* topOfStack = istate->stack(); oop top = STACK_OBJECT(-1); MORE_STACK(-1); istate->set_stack(topOfStack); return top; } int MethodHandles::method_handle_entry_invokeBasic(Method* method, intptr_t UNUSED, TRAPS) { JavaThread *thread = (JavaThread *) THREAD; InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); interpreterState istate = frame->interpreter_state(); intptr_t* topOfStack = istate->stack(); // 'this' is a MethodHandle. We resolve the target method by accessing this.form.vmentry.vmtarget. int numArgs = method->size_of_parameters(); oop lform1 = java_lang_invoke_MethodHandle::form(STACK_OBJECT(-numArgs)); // this.form oop vmEntry1 = java_lang_invoke_LambdaForm::vmentry(lform1); Method* vmtarget = (Method*) java_lang_invoke_MemberName::vmtarget(vmEntry1); invoke_target(vmtarget, THREAD); // No deoptimized frames on the stack return 0; } int MethodHandles::method_handle_entry_linkToStaticOrSpecial(Method* method, intptr_t UNUSED, TRAPS) { // Pop appendix argument from stack. This is a MemberName which we resolve to the // target method. oop vmentry = popFromStack(THREAD); Method* vmtarget = (Method*) java_lang_invoke_MemberName::vmtarget(vmentry); invoke_target(vmtarget, THREAD); return 0; } int MethodHandles::method_handle_entry_linkToInterface(Method* method, intptr_t UNUSED, TRAPS) { JavaThread *thread = (JavaThread *) THREAD; InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); interpreterState istate = frame->interpreter_state(); // Pop appendix argument from stack. This is a MemberName which we resolve to the // target method. oop vmentry = popFromStack(THREAD); intptr_t* topOfStack = istate->stack(); // Resolve target method by looking up in the receiver object's itable. Klass* clazz = java_lang_Class::as_Klass(java_lang_invoke_MemberName::clazz(vmentry)); intptr_t vmindex = java_lang_invoke_MemberName::vmindex(vmentry); Method* target = (Method*) java_lang_invoke_MemberName::vmtarget(vmentry); int numArgs = target->size_of_parameters(); oop recv = STACK_OBJECT(-numArgs); InstanceKlass* klass_part = InstanceKlass::cast(recv->klass()); itableOffsetEntry* ki = (itableOffsetEntry*) klass_part->start_of_itable(); int i; for ( i = 0 ; i < klass_part->itable_length() ; i++, ki++ ) { if (ki->interface_klass() == clazz) break; } itableMethodEntry* im = ki->first_method_entry(recv->klass()); Method* vmtarget = im[vmindex].method(); invoke_target(vmtarget, THREAD); return 0; } int MethodHandles::method_handle_entry_linkToVirtual(Method* method, intptr_t UNUSED, TRAPS) { JavaThread *thread = (JavaThread *) THREAD; InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); interpreterState istate = frame->interpreter_state(); // Pop appendix argument from stack. This is a MemberName which we resolve to the // target method. oop vmentry = popFromStack(THREAD); intptr_t* topOfStack = istate->stack(); // Resolve target method by looking up in the receiver object's vtable. intptr_t vmindex = java_lang_invoke_MemberName::vmindex(vmentry); Method* target = (Method*) java_lang_invoke_MemberName::vmtarget(vmentry); int numArgs = target->size_of_parameters(); oop recv = STACK_OBJECT(-numArgs); Klass* clazz = recv->klass(); Klass* klass_part = InstanceKlass::cast(clazz); klassVtable* vtable = klass_part->vtable(); Method* vmtarget = vtable->method_at(vmindex); invoke_target(vmtarget, THREAD); return 0; } int MethodHandles::method_handle_entry_invalid(Method* method, intptr_t UNUSED, TRAPS) { ShouldNotReachHere(); return 0; } address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* masm, vmIntrinsics::ID iid) { switch (iid) { case vmIntrinsics::_invokeGeneric: case vmIntrinsics::_compiledLambdaForm: // Perhaps surprisingly, the symbolic references visible to Java are not directly used. // They are linked to Java-generated adapters via MethodHandleNatives.linkMethod. // They all allow an appendix argument. return InterpreterGenerator::generate_entry_impl(masm, (address) MethodHandles::method_handle_entry_invalid); case vmIntrinsics::_invokeBasic: return InterpreterGenerator::generate_entry_impl(masm, (address) MethodHandles::method_handle_entry_invokeBasic); case vmIntrinsics::_linkToStatic: case vmIntrinsics::_linkToSpecial: return InterpreterGenerator::generate_entry_impl(masm, (address) MethodHandles::method_handle_entry_linkToStaticOrSpecial); case vmIntrinsics::_linkToInterface: return InterpreterGenerator::generate_entry_impl(masm, (address) MethodHandles::method_handle_entry_linkToInterface); case vmIntrinsics::_linkToVirtual: return InterpreterGenerator::generate_entry_impl(masm, (address) MethodHandles::method_handle_entry_linkToVirtual); default: ShouldNotReachHere(); return NULL; } }