aoqi@0: /* aoqi@0: * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. aoqi@0: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. aoqi@0: * aoqi@0: * This code is free software; you can redistribute it and/or modify it aoqi@0: * under the terms of the GNU General Public License version 2 only, as aoqi@0: * published by the Free Software Foundation. aoqi@0: * aoqi@0: * This code is distributed in the hope that it will be useful, but WITHOUT aoqi@0: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or aoqi@0: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License aoqi@0: * version 2 for more details (a copy is included in the LICENSE file that aoqi@0: * accompanied this code). aoqi@0: * aoqi@0: * You should have received a copy of the GNU General Public License version aoqi@0: * 2 along with this work; if not, write to the Free Software Foundation, aoqi@0: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. aoqi@0: * aoqi@0: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA aoqi@0: * or visit www.oracle.com if you need additional information or have any aoqi@0: * questions. aoqi@0: * aoqi@0: */ aoqi@0: aoqi@0: #include "precompiled.hpp" aoqi@0: #include "ci/ciMethod.hpp" aoqi@0: #include "interpreter/interpreter.hpp" aoqi@0: #include "runtime/frame.inline.hpp" aoqi@0: aoqi@0: #ifndef CC_INTERP aoqi@0: aoqi@0: // asm based interpreter deoptimization helpers aoqi@0: int AbstractInterpreter::size_activation(int max_stack, aoqi@0: int temps, aoqi@0: int extra_args, aoqi@0: int monitors, aoqi@0: int callee_params, aoqi@0: int callee_locals, aoqi@0: bool is_top_frame) { aoqi@0: // Note: This calculation must exactly parallel the frame setup aoqi@0: // in AbstractInterpreterGenerator::generate_method_entry. aoqi@0: aoqi@0: // fixed size of an interpreter frame: aoqi@0: int overhead = frame::sender_sp_offset - aoqi@0: frame::interpreter_frame_initial_sp_offset; aoqi@0: // Our locals were accounted for by the caller (or last_frame_adjust aoqi@0: // on the transistion) Since the callee parameters already account aoqi@0: // for the callee's params we only need to account for the extra aoqi@0: // locals. aoqi@0: int size = overhead + aoqi@0: (callee_locals - callee_params)*Interpreter::stackElementWords + aoqi@0: monitors * frame::interpreter_frame_monitor_size() + aoqi@0: temps* Interpreter::stackElementWords + extra_args; aoqi@0: aoqi@0: return size; aoqi@0: } aoqi@0: aoqi@0: void AbstractInterpreter::layout_activation(Method* method, aoqi@0: int tempcount, aoqi@0: int popframe_extra_args, aoqi@0: int moncount, aoqi@0: int caller_actual_parameters, aoqi@0: int callee_param_count, aoqi@0: int callee_locals, aoqi@0: frame* caller, aoqi@0: frame* interpreter_frame, aoqi@0: bool is_top_frame, aoqi@0: bool is_bottom_frame) { aoqi@0: // The frame interpreter_frame is guaranteed to be the right size, aoqi@0: // as determined by a previous call to the size_activation() method. aoqi@0: // It is also guaranteed to be walkable even though it is in a aoqi@0: // skeletal state aoqi@0: aoqi@0: int max_locals = method->max_locals() * Interpreter::stackElementWords; aoqi@0: int extra_locals = (method->max_locals() - method->size_of_parameters()) * aoqi@0: Interpreter::stackElementWords; aoqi@0: aoqi@0: #ifdef ASSERT aoqi@0: if (!EnableInvokeDynamic) { aoqi@0: // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? aoqi@0: // Probably, since deoptimization doesn't work yet. aoqi@0: assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); aoqi@0: } aoqi@0: assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); aoqi@0: #endif aoqi@0: aoqi@0: interpreter_frame->interpreter_frame_set_method(method); aoqi@0: // NOTE the difference in using sender_sp and aoqi@0: // interpreter_frame_sender_sp interpreter_frame_sender_sp is aoqi@0: // the original sp of the caller (the unextended_sp) and aoqi@0: // sender_sp is fp+8/16 (32bit/64bit) XXX aoqi@0: intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; aoqi@0: aoqi@0: #ifdef ASSERT aoqi@0: if (caller->is_interpreted_frame()) { aoqi@0: assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); aoqi@0: } aoqi@0: #endif aoqi@0: aoqi@0: interpreter_frame->interpreter_frame_set_locals(locals); aoqi@0: BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); aoqi@0: BasicObjectLock* monbot = montop - moncount; aoqi@0: interpreter_frame->interpreter_frame_set_monitor_end(monbot); aoqi@0: aoqi@0: // Set last_sp aoqi@0: intptr_t* esp = (intptr_t*) monbot - aoqi@0: tempcount*Interpreter::stackElementWords - aoqi@0: popframe_extra_args; aoqi@0: interpreter_frame->interpreter_frame_set_last_sp(esp); aoqi@0: aoqi@0: // All frames but the initial (oldest) interpreter frame we fill in have aoqi@0: // a value for sender_sp that allows walking the stack but isn't aoqi@0: // truly correct. Correct the value here. aoqi@0: if (extra_locals != 0 && aoqi@0: interpreter_frame->sender_sp() == aoqi@0: interpreter_frame->interpreter_frame_sender_sp()) { aoqi@0: interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + aoqi@0: extra_locals); aoqi@0: } aoqi@0: *interpreter_frame->interpreter_frame_cache_addr() = aoqi@0: method->constants()->cache(); aoqi@0: } aoqi@0: aoqi@0: #endif // CC_INTERP