hotspot/src/cpu/x86/vm/templateInterpreter_x86_32.cpp
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Thu, 27 May 2010 19:08:38 -0700
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6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
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/*
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 * Copyright (c) 1997, 2010, 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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#include "incls/_precompiled.incl"
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#include "incls/_templateInterpreter_x86_32.cpp.incl"
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#define __ _masm->
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#ifndef CC_INTERP
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const int method_offset = frame::interpreter_frame_method_offset * wordSize;
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const int bci_offset    = frame::interpreter_frame_bcx_offset    * wordSize;
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const int locals_offset = frame::interpreter_frame_locals_offset * wordSize;
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//------------------------------------------------------------------------------------------------------------------------
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address TemplateInterpreterGenerator::generate_StackOverflowError_handler() {
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  address entry = __ pc();
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  // Note: There should be a minimal interpreter frame set up when stack
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  // overflow occurs since we check explicitly for it now.
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  //
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#ifdef ASSERT
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  { Label L;
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    __ lea(rax, Address(rbp,
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                frame::interpreter_frame_monitor_block_top_offset * wordSize));
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    __ cmpptr(rax, rsp);  // rax, = maximal rsp for current rbp,
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                        //  (stack grows negative)
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    __ jcc(Assembler::aboveEqual, L); // check if frame is complete
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    __ stop ("interpreter frame not set up");
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    __ bind(L);
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  }
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#endif // ASSERT
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  // Restore bcp under the assumption that the current frame is still
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  // interpreted
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  __ restore_bcp();
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  // expression stack must be empty before entering the VM if an exception
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  // happened
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  __ empty_expression_stack();
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  __ empty_FPU_stack();
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  // throw exception
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  __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError));
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  return entry;
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}
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address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler(const char* name) {
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  address entry = __ pc();
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  // expression stack must be empty before entering the VM if an exception happened
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  __ empty_expression_stack();
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  __ empty_FPU_stack();
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  // setup parameters
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  // ??? convention: expect aberrant index in register rbx,
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  __ lea(rax, ExternalAddress((address)name));
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  __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_ArrayIndexOutOfBoundsException), rax, rbx);
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  return entry;
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}
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address TemplateInterpreterGenerator::generate_ClassCastException_handler() {
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  address entry = __ pc();
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  // object is at TOS
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  __ pop(rax);
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  // expression stack must be empty before entering the VM if an exception
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  // happened
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  __ empty_expression_stack();
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  __ empty_FPU_stack();
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  __ call_VM(noreg,
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             CAST_FROM_FN_PTR(address,
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                              InterpreterRuntime::throw_ClassCastException),
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             rax);
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  return entry;
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}
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// Arguments are: required type at TOS+4, failing object (or NULL) at TOS.
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address TemplateInterpreterGenerator::generate_WrongMethodType_handler() {
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  address entry = __ pc();
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  __ pop(rbx);                  // actual failing object is at TOS
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  __ pop(rax);                  // required type is at TOS+4
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  __ verify_oop(rbx);
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  __ verify_oop(rax);
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  // Various method handle types use interpreter registers as temps.
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  __ restore_bcp();
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  __ restore_locals();
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  // Expression stack must be empty before entering the VM for an exception.
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  __ empty_expression_stack();
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  __ empty_FPU_stack();
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  __ call_VM(noreg,
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             CAST_FROM_FN_PTR(address,
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                              InterpreterRuntime::throw_WrongMethodTypeException),
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             // pass required type, failing object (or NULL)
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             rax, rbx);
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  return entry;
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}
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address TemplateInterpreterGenerator::generate_exception_handler_common(const char* name, const char* message, bool pass_oop) {
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  assert(!pass_oop || message == NULL, "either oop or message but not both");
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  address entry = __ pc();
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  if (pass_oop) {
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    // object is at TOS
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    __ pop(rbx);
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  }
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  // expression stack must be empty before entering the VM if an exception happened
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  __ empty_expression_stack();
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  __ empty_FPU_stack();
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  // setup parameters
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  __ lea(rax, ExternalAddress((address)name));
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  if (pass_oop) {
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    __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_klass_exception), rax, rbx);
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  } else {
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    if (message != NULL) {
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      __ lea(rbx, ExternalAddress((address)message));
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    } else {
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      __ movptr(rbx, NULL_WORD);
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    }
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    __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), rax, rbx);
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  }
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  // throw exception
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  __ jump(ExternalAddress(Interpreter::throw_exception_entry()));
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  return entry;
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}
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address TemplateInterpreterGenerator::generate_continuation_for(TosState state) {
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  address entry = __ pc();
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  // NULL last_sp until next java call
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  __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
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  __ dispatch_next(state);
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  return entry;
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}
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address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) {
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  TosState incoming_state = state;
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  Label interpreter_entry;
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  address compiled_entry = __ pc();
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#ifdef COMPILER2
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  // The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases
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  if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) {
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    for (int i = 1; i < 8; i++) {
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        __ ffree(i);
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    }
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  } else if (UseSSE < 2) {
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    __ empty_FPU_stack();
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  }
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#endif
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  if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) {
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    __ MacroAssembler::verify_FPU(1, "generate_return_entry_for compiled");
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  } else {
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    __ MacroAssembler::verify_FPU(0, "generate_return_entry_for compiled");
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  }
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  __ jmp(interpreter_entry, relocInfo::none);
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  // emit a sentinel we can test for when converting an interpreter
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  // entry point to a compiled entry point.
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  __ a_long(Interpreter::return_sentinel);
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  __ a_long((int)compiled_entry);
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  address entry = __ pc();
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  __ bind(interpreter_entry);
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  // In SSE mode, interpreter returns FP results in xmm0 but they need
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  // to end up back on the FPU so it can operate on them.
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  if (incoming_state == ftos && UseSSE >= 1) {
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    __ subptr(rsp, wordSize);
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    __ movflt(Address(rsp, 0), xmm0);
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    __ fld_s(Address(rsp, 0));
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    __ addptr(rsp, wordSize);
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  } else if (incoming_state == dtos && UseSSE >= 2) {
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    __ subptr(rsp, 2*wordSize);
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    __ movdbl(Address(rsp, 0), xmm0);
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    __ fld_d(Address(rsp, 0));
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    __ addptr(rsp, 2*wordSize);
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  }
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  __ MacroAssembler::verify_FPU(state == ftos || state == dtos ? 1 : 0, "generate_return_entry_for in interpreter");
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  // Restore stack bottom in case i2c adjusted stack
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  __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize));
1
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  // and NULL it as marker that rsp is now tos until next java call
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  __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
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  __ restore_bcp();
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  __ restore_locals();
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  Label L_got_cache, L_giant_index;
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  if (EnableInvokeDynamic) {
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    __ cmpb(Address(rsi, 0), Bytecodes::_invokedynamic);
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    __ jcc(Assembler::equal, L_giant_index);
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  }
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  __ get_cache_and_index_at_bcp(rbx, rcx, 1, false);
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  __ bind(L_got_cache);
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  __ movl(rbx, Address(rbx, rcx,
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                    Address::times_ptr, constantPoolCacheOopDesc::base_offset() +
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                    ConstantPoolCacheEntry::flags_offset()));
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  __ andptr(rbx, 0xFF);
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  __ lea(rsp, Address(rsp, rbx, Interpreter::stackElementScale()));
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  __ dispatch_next(state, step);
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  // out of the main line of code...
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  if (EnableInvokeDynamic) {
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    __ bind(L_giant_index);
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    __ get_cache_and_index_at_bcp(rbx, rcx, 1, true);
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    __ jmp(L_got_cache);
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  }
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1
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  return entry;
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}
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address TemplateInterpreterGenerator::generate_deopt_entry_for(TosState state, int step) {
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  address entry = __ pc();
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  // In SSE mode, FP results are in xmm0
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  if (state == ftos && UseSSE > 0) {
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    __ subptr(rsp, wordSize);
1
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    __ movflt(Address(rsp, 0), xmm0);
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    __ fld_s(Address(rsp, 0));
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    __ addptr(rsp, wordSize);
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  } else if (state == dtos && UseSSE >= 2) {
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    __ subptr(rsp, 2*wordSize);
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    __ movdbl(Address(rsp, 0), xmm0);
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    __ fld_d(Address(rsp, 0));
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    __ addptr(rsp, 2*wordSize);
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  }
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  __ MacroAssembler::verify_FPU(state == ftos || state == dtos ? 1 : 0, "generate_deopt_entry_for in interpreter");
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  // The stack is not extended by deopt but we must NULL last_sp as this
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  // entry is like a "return".
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  __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
1
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  __ restore_bcp();
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  __ restore_locals();
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  // handle exceptions
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  { Label L;
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    const Register thread = rcx;
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    __ get_thread(thread);
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    __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD);
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    __ jcc(Assembler::zero, L);
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    __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception));
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    __ should_not_reach_here();
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    __ bind(L);
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  }
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  __ dispatch_next(state, step);
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  return entry;
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}
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int AbstractInterpreter::BasicType_as_index(BasicType type) {
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  int i = 0;
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  switch (type) {
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    case T_BOOLEAN: i = 0; break;
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    case T_CHAR   : i = 1; break;
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    case T_BYTE   : i = 2; break;
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    case T_SHORT  : i = 3; break;
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    case T_INT    : // fall through
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    case T_LONG   : // fall through
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    case T_VOID   : i = 4; break;
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    case T_FLOAT  : i = 5; break;  // have to treat float and double separately for SSE
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    case T_DOUBLE : i = 6; break;
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    case T_OBJECT : // fall through
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    case T_ARRAY  : i = 7; break;
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    default       : ShouldNotReachHere();
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  }
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  assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds");
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  return i;
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}
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   295
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address TemplateInterpreterGenerator::generate_result_handler_for(BasicType type) {
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  address entry = __ pc();
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  switch (type) {
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    case T_BOOLEAN: __ c2bool(rax);            break;
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    case T_CHAR   : __ andptr(rax, 0xFFFF);    break;
1
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    case T_BYTE   : __ sign_extend_byte (rax); break;
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    case T_SHORT  : __ sign_extend_short(rax); break;
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    case T_INT    : /* nothing to do */        break;
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    case T_DOUBLE :
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    case T_FLOAT  :
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      { const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp();
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        __ pop(t);                            // remove return address first
1
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        // Must return a result for interpreter or compiler. In SSE
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        // mode, results are returned in xmm0 and the FPU stack must
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        // be empty.
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        if (type == T_FLOAT && UseSSE >= 1) {
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          // Load ST0
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          __ fld_d(Address(rsp, 0));
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          // Store as float and empty fpu stack
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          __ fstp_s(Address(rsp, 0));
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          // and reload
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          __ movflt(xmm0, Address(rsp, 0));
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        } else if (type == T_DOUBLE && UseSSE >= 2 ) {
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          __ movdbl(xmm0, Address(rsp, 0));
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        } else {
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          // restore ST0
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          __ fld_d(Address(rsp, 0));
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        }
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        // and pop the temp
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        __ addptr(rsp, 2 * wordSize);
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        __ push(t);                           // restore return address
1
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      }
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      break;
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    case T_OBJECT :
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      // retrieve result from frame
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      __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize));
1
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      // and verify it
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      __ verify_oop(rax);
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      break;
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    default       : ShouldNotReachHere();
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  }
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  __ ret(0);                                   // return from result handler
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  return entry;
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}
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   340
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address TemplateInterpreterGenerator::generate_safept_entry_for(TosState state, address runtime_entry) {
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  address entry = __ pc();
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  __ push(state);
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  __ call_VM(noreg, runtime_entry);
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  __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos));
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  return entry;
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}
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   348
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   349
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// Helpers for commoning out cases in the various type of method entries.
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//
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// increment invocation count & check for overflow
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//
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// Note: checking for negative value instead of overflow
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//       so we have a 'sticky' overflow test
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//
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// rbx,: method
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// rcx: invocation counter
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//
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void InterpreterGenerator::generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue) {
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   362
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  const Address invocation_counter(rbx, methodOopDesc::invocation_counter_offset() + InvocationCounter::counter_offset());
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  const Address backedge_counter  (rbx, methodOopDesc::backedge_counter_offset() + InvocationCounter::counter_offset());
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   365
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  if (ProfileInterpreter) { // %%% Merge this into methodDataOop
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    __ incrementl(Address(rbx,methodOopDesc::interpreter_invocation_counter_offset()));
1
489c9b5090e2 Initial load
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parents:
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   368
  }
489c9b5090e2 Initial load
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parents:
diff changeset
   369
  // Update standard invocation counters
489c9b5090e2 Initial load
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parents:
diff changeset
   370
  __ movl(rax, backedge_counter);               // load backedge counter
489c9b5090e2 Initial load
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parents:
diff changeset
   371
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diff changeset
   372
  __ incrementl(rcx, InvocationCounter::count_increment);
1
489c9b5090e2 Initial load
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parents:
diff changeset
   373
  __ andl(rax, InvocationCounter::count_mask_value);  // mask out the status bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
489c9b5090e2 Initial load
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parents:
diff changeset
   375
  __ movl(invocation_counter, rcx);             // save invocation count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  __ addl(rcx, rax);                            // add both counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
489c9b5090e2 Initial load
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parents:
diff changeset
   378
  // profile_method is non-null only for interpreted method so
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  // profile_method != NULL == !native_call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
  // BytecodeInterpreter only calls for native so code is elided.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
  if (ProfileInterpreter && profile_method != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
    // Test to see if we should create a method data oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
    __ cmp32(rcx,
489c9b5090e2 Initial load
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parents:
diff changeset
   385
             ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
    __ jcc(Assembler::less, *profile_method_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
    // if no method data exists, go to profile_method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
    __ test_method_data_pointer(rax, *profile_method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
  __ cmp32(rcx,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
           ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
  __ jcc(Assembler::aboveEqual, *overflow);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
}
489c9b5090e2 Initial load
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parents:
diff changeset
   397
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
void InterpreterGenerator::generate_counter_overflow(Label* do_continue) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
  // Asm interpreter on entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
  // rdi - locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  // rsi - bcp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
  // rbx, - method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  // rdx - cpool
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
  // rbp, - interpreter frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
  // C++ interpreter on entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  // rsi - new interpreter state pointer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
  // rbp - interpreter frame pointer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  // rbx - method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  // On return (i.e. jump to entry_point) [ back to invocation of interpreter ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
  // rbx, - method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
  // rcx - rcvr (assuming there is one)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
  // top of stack return address of interpreter caller
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
  // rsp - sender_sp
489c9b5090e2 Initial load
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parents:
diff changeset
   417
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  // C++ interpreter only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
  // rsi - previous interpreter state pointer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
489c9b5090e2 Initial load
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parents:
diff changeset
   421
  const Address size_of_parameters(rbx, methodOopDesc::size_of_parameters_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
  // InterpreterRuntime::frequency_counter_overflow takes one argument
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
  // indicating if the counter overflow occurs at a backwards branch (non-NULL bcp).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
  // The call returns the address of the verified entry point for the method or NULL
489c9b5090e2 Initial load
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parents:
diff changeset
   426
  // if the compilation did not complete (either went background or bailed out).
1909
952b42dad1fc 6795913: A few remaining wrong casts need to be fixed for building hotspot successfully on Mac OS.
xlu
parents: 1888
diff changeset
   427
  __ movptr(rax, (intptr_t)false);
1
489c9b5090e2 Initial load
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parents:
diff changeset
   428
  __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
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   430
  __ movptr(rbx, Address(rbp, method_offset));   // restore methodOop
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
  // Preserve invariant that rsi/rdi contain bcp/locals of sender frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
  // and jump to the interpreted entry.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  __ jmp(*do_continue, relocInfo::none);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
void InterpreterGenerator::generate_stack_overflow_check(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
  // see if we've got enough room on the stack for locals plus overhead.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  // the expression stack grows down incrementally, so the normal guard
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
  // page mechanism will work for that.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  // Registers live on entry:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
  // Asm interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  // rdx: number of additional locals this frame needs (what we must check)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  // rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  // destroyed on exit
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
  // rax,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
  // NOTE:  since the additional locals are also always pushed (wasn't obvious in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  // generate_method_entry) so the guard should work for them too.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
  // monitor entry size: see picture of stack set (generate_method_entry) and frame_x86.hpp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
  const int entry_size    = frame::interpreter_frame_monitor_size() * wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
  // total overhead size: entry_size + (saved rbp, thru expr stack bottom).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
  // be sure to change this if you add/subtract anything to/from the overhead area
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
  const int overhead_size = -(frame::interpreter_frame_initial_sp_offset*wordSize) + entry_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
  const int page_size = os::vm_page_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  Label after_frame_check;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
  // see if the frame is greater than one page in size. If so,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  // then we need to verify there is enough stack space remaining
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  // for the additional locals.
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
   470
  __ cmpl(rdx, (page_size - overhead_size)/Interpreter::stackElementSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  __ jcc(Assembler::belowEqual, after_frame_check);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  // compute rsp as if this were going to be the last frame on
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  // the stack before the red zone
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  Label after_frame_check_pop;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
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parents: 1
diff changeset
   478
  __ push(rsi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  const Register thread = rsi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  __ get_thread(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  const Address stack_base(thread, Thread::stack_base_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  const Address stack_size(thread, Thread::stack_size_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  // locals + overhead, in bytes
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717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   488
  __ lea(rax, Address(noreg, rdx, Interpreter::stackElementScale(), overhead_size));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  Label stack_base_okay, stack_size_okay;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
  // verify that thread stack base is non-zero
1066
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parents: 1
diff changeset
   493
  __ cmpptr(stack_base, (int32_t)NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
  __ jcc(Assembler::notEqual, stack_base_okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
  __ stop("stack base is zero");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  __ bind(stack_base_okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  // verify that thread stack size is non-zero
1066
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parents: 1
diff changeset
   498
  __ cmpptr(stack_size, 0);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  __ jcc(Assembler::notEqual, stack_size_okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
  __ stop("stack size is zero");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
  __ bind(stack_size_okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
  // Add stack base to locals and subtract stack size
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parents: 1
diff changeset
   505
  __ addptr(rax, stack_base);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   506
  __ subptr(rax, stack_size);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  // Use the maximum number of pages we might bang.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
                                                                              (StackRedPages+StackYellowPages);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   511
  __ addptr(rax, max_pages * page_size);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  // check against the current stack bottom
1066
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never
parents: 1
diff changeset
   514
  __ cmpptr(rsp, rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  __ jcc(Assembler::above, after_frame_check_pop);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
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parents: 1
diff changeset
   517
  __ pop(rsi);  // get saved bcp / (c++ prev state ).
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   519
  __ pop(rax);  // get return address
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  __ jump(ExternalAddress(Interpreter::throw_StackOverflowError_entry()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  // all done with frame size check
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  __ bind(after_frame_check_pop);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
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parents: 1
diff changeset
   524
  __ pop(rsi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  __ bind(after_frame_check);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
// Allocate monitor and lock method (asm interpreter)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
// rbx, - methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
void InterpreterGenerator::lock_method(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  // synchronize method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  const Address access_flags      (rbx, methodOopDesc::access_flags_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
  const Address monitor_block_top (rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
  const int entry_size            = frame::interpreter_frame_monitor_size() * wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
  #ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
    { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
      __ movl(rax, access_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
      __ testl(rax, JVM_ACC_SYNCHRONIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
      __ jcc(Assembler::notZero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
      __ stop("method doesn't need synchronization");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
      __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
  #endif // ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  // get synchronization object
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  { Label done;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
    const int mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
    __ movl(rax, access_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
    __ testl(rax, JVM_ACC_STATIC);
1066
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parents: 1
diff changeset
   552
    __ movptr(rax, Address(rdi, Interpreter::local_offset_in_bytes(0)));  // get receiver (assume this is frequent case)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
    __ jcc(Assembler::zero, done);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
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parents: 1
diff changeset
   554
    __ movptr(rax, Address(rbx, methodOopDesc::constants_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
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parents: 1
diff changeset
   555
    __ movptr(rax, Address(rax, constantPoolOopDesc::pool_holder_offset_in_bytes()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   556
    __ movptr(rax, Address(rax, mirror_offset));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
    __ bind(done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  // add space for monitor & lock
1066
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never
parents: 1
diff changeset
   560
  __ subptr(rsp, entry_size);                                           // add space for a monitor entry
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   561
  __ movptr(monitor_block_top, rsp);                                    // set new monitor block top
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   562
  __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); // store object
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   563
  __ mov(rdx, rsp);                                                    // object address
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  __ lock_object(rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
// Generate a fixed interpreter frame. This is identical setup for interpreted methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
// and for native methods hence the shared code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  // initialize fixed part of activation frame
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   573
  __ push(rax);                                       // save return address
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  __ enter();                                         // save old & set new rbp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   577
  __ push(rsi);                                       // set sender sp
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   578
  __ push((int32_t)NULL_WORD);                        // leave last_sp as null
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   579
  __ movptr(rsi, Address(rbx,methodOopDesc::const_offset())); // get constMethodOop
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   580
  __ lea(rsi, Address(rsi,constMethodOopDesc::codes_offset())); // get codebase
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   581
  __ push(rbx);                                      // save methodOop
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
    Label method_data_continue;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   584
    __ movptr(rdx, Address(rbx, in_bytes(methodOopDesc::method_data_offset())));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   585
    __ testptr(rdx, rdx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
    __ jcc(Assembler::zero, method_data_continue);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   587
    __ addptr(rdx, in_bytes(methodDataOopDesc::data_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
    __ bind(method_data_continue);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   589
    __ push(rdx);                                       // set the mdp (method data pointer)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  } else {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   591
    __ push(0);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   594
  __ movptr(rdx, Address(rbx, methodOopDesc::constants_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   595
  __ movptr(rdx, Address(rdx, constantPoolOopDesc::cache_offset_in_bytes()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   596
  __ push(rdx);                                       // set constant pool cache
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   597
  __ push(rdi);                                       // set locals pointer
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  if (native_call) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   599
    __ push(0);                                       // no bcp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  } else {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   601
    __ push(rsi);                                     // set bcp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    }
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   603
  __ push(0);                                         // reserve word for pointer to expression stack bottom
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   604
  __ movptr(Address(rsp, 0), rsp);                    // set expression stack bottom
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
// End of helpers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
// Various method entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
//------------------------------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
// Call an accessor method (assuming it is resolved, otherwise drop into vanilla (slow path) entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
address InterpreterGenerator::generate_accessor_entry(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  // rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  // rcx: receiver (preserve for slow entry into asm interpreter)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  // rsi: senderSP must preserved for slow path, set SP to it on fast path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  address entry_point = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  Label xreturn_path;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  // do fastpath for resolved accessor methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  if (UseFastAccessorMethods) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
    Label slow_path;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
    // If we need a safepoint check, generate full interpreter entry.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
    ExternalAddress state(SafepointSynchronize::address_of_state());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
    __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
             SafepointSynchronize::_not_synchronized);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
    __ jcc(Assembler::notEqual, slow_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
    // ASM/C++ Interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
    // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; parameter size = 1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
    // Note: We can only use this code if the getfield has been resolved
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
    //       and if we don't have a null-pointer exception => check for
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
    //       these conditions first and use slow path if necessary.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
    // rbx,: method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
    // rcx: receiver
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   643
    __ movptr(rax, Address(rsp, wordSize));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
    // check if local 0 != NULL and read field
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   646
    __ testptr(rax, rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
    __ jcc(Assembler::zero, slow_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   649
    __ movptr(rdi, Address(rbx, methodOopDesc::constants_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
    // read first instruction word and extract bytecode @ 1 and index @ 2
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   651
    __ movptr(rdx, Address(rbx, methodOopDesc::const_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
    __ movl(rdx, Address(rdx, constMethodOopDesc::codes_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
    // Shift codes right to get the index on the right.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
    // The bytecode fetched looks like <index><0xb4><0x2a>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
    __ shrl(rdx, 2*BitsPerByte);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
    __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size())));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   657
    __ movptr(rdi, Address(rdi, constantPoolOopDesc::cache_offset_in_bytes()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
    // rax,: local 0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
    // rbx,: method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    // rcx: receiver - do not destroy since it is needed for slow path!
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
    // rcx: scratch
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    // rdx: constant pool cache index
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
    // rdi: constant pool cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
    // rsi: sender sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
    // check if getfield has been resolved and read constant pool cache entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
    // check the validity of the cache entry by testing whether _indices field
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
    // contains Bytecode::_getfield in b1 byte.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
    assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
    __ movl(rcx,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
            Address(rdi,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
                    rdx,
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   674
                    Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
    __ shrl(rcx, 2*BitsPerByte);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
    __ andl(rcx, 0xFF);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
    __ cmpl(rcx, Bytecodes::_getfield);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
    __ jcc(Assembler::notEqual, slow_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
    // Note: constant pool entry is not valid before bytecode is resolved
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   681
    __ movptr(rcx,
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   682
              Address(rdi,
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   683
                      rdx,
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   684
                      Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::f2_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    __ movl(rdx,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
            Address(rdi,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
                    rdx,
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   688
                    Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::flags_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
    Label notByte, notShort, notChar;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
    const Address field_address (rax, rcx, Address::times_1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
    // Need to differentiate between igetfield, agetfield, bgetfield etc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
    // because they are different sizes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
    // Use the type from the constant pool cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
    __ shrl(rdx, ConstantPoolCacheEntry::tosBits);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
    // Make sure we don't need to mask rdx for tosBits after the above shift
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
    ConstantPoolCacheEntry::verify_tosBits();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
    __ cmpl(rdx, btos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
    __ jcc(Assembler::notEqual, notByte);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
    __ load_signed_byte(rax, field_address);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
    __ jmp(xreturn_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    __ bind(notByte);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
    __ cmpl(rdx, stos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
    __ jcc(Assembler::notEqual, notShort);
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
   707
    __ load_signed_short(rax, field_address);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    __ jmp(xreturn_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
    __ bind(notShort);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
    __ cmpl(rdx, ctos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
    __ jcc(Assembler::notEqual, notChar);
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
   713
    __ load_unsigned_short(rax, field_address);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
    __ jmp(xreturn_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
    __ bind(notChar);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
    Label okay;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
    __ cmpl(rdx, atos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
    __ jcc(Assembler::equal, okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    __ cmpl(rdx, itos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
    __ jcc(Assembler::equal, okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
    __ stop("what type is this?");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    __ bind(okay);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
#endif // ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
    // All the rest are a 32 bit wordsize
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   727
    // This is ok for now. Since fast accessors should be going away
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   728
    __ movptr(rax, field_address);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
    __ bind(xreturn_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
    // _ireturn/_areturn
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   733
    __ pop(rdi);                               // get return address
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   734
    __ mov(rsp, rsi);                          // set sp to sender sp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
    __ jmp(rdi);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
    // generate a vanilla interpreter entry as the slow path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
    __ bind(slow_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
    (void) generate_normal_entry(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
    return entry_point;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
// Interpreter stub for calling a native method. (asm interpreter)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
// This sets up a somewhat different looking stack for calling the native method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
// than the typical interpreter frame setup.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
address InterpreterGenerator::generate_native_entry(bool synchronized) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  // determine code generation flags
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
  bool inc_counter  = UseCompiler || CountCompiledCalls;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
  // rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
  // rsi: sender sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
  // rsi: previous interpreter state (C++ interpreter) must preserve
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  address entry_point = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  const Address size_of_parameters(rbx, methodOopDesc::size_of_parameters_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
  const Address invocation_counter(rbx, methodOopDesc::invocation_counter_offset() + InvocationCounter::counter_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
  const Address access_flags      (rbx, methodOopDesc::access_flags_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  // get parameter size (always needed)
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
   768
  __ load_unsigned_short(rcx, size_of_parameters);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
  // native calls don't need the stack size check since they have no expression stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
  // and the arguments are already on the stack and we only add a handful of words
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
  // to the stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
  // rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
  // rcx: size of parameters
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
  // rsi: sender sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   778
  __ pop(rax);                                       // get return address
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
  // for natives the size of locals is zero
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
  // compute beginning of parameters (rdi)
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   782
  __ lea(rdi, Address(rsp, rcx, Interpreter::stackElementScale(), -wordSize));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
  // add 2 zero-initialized slots for native calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
  // NULL result handler
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   787
  __ push((int32_t)NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
  // NULL oop temp (mirror or jni oop result)
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   789
  __ push((int32_t)NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  if (inc_counter) __ movl(rcx, invocation_counter);  // (pre-)fetch invocation count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
  // initialize fixed part of activation frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  generate_fixed_frame(true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  // make sure method is native & not abstract
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
  __ movl(rax, access_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
    Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    __ testl(rax, JVM_ACC_NATIVE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
    __ jcc(Assembler::notZero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
    __ stop("tried to execute non-native method as native");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
    __ testl(rax, JVM_ACC_ABSTRACT);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
    __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
    __ stop("tried to execute abstract method in interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
  // Since at this point in the method invocation the exception handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
  // would try to exit the monitor of synchronized methods which hasn't
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
  // been entered yet, we set the thread local variable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
  // _do_not_unlock_if_synchronized to true. The remove_activation will
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
  // check this flag.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
  __ get_thread(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
  const Address do_not_unlock_if_synchronized(rax,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
        in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
  __ movbool(do_not_unlock_if_synchronized, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
  // increment invocation count & check for overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
  Label invocation_counter_overflow;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
  if (inc_counter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
    generate_counter_incr(&invocation_counter_overflow, NULL, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
  Label continue_after_compile;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
  __ bind(continue_after_compile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
  bang_stack_shadow_pages(true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
  // reset the _do_not_unlock_if_synchronized flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
  __ get_thread(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
  __ movbool(do_not_unlock_if_synchronized, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
  // check for synchronized methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
  // Must happen AFTER invocation_counter check and stack overflow check,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  // so method is not locked if overflows.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  if (synchronized) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    lock_method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
    // no synchronization necessary
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
      { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
        __ movl(rax, access_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
        __ testl(rax, JVM_ACC_SYNCHRONIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
        __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
        __ stop("method needs synchronization");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
        __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
  // start execution
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
    const Address monitor_block_top (rbp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
                 frame::interpreter_frame_monitor_block_top_offset * wordSize);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   864
    __ movptr(rax, monitor_block_top);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   865
    __ cmpptr(rax, rsp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    __ jcc(Assembler::equal, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
    __ stop("broken stack frame setup in interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
  // jvmti/dtrace support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
  __ notify_method_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  // work registers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
  const Register method = rbx;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
  const Register thread = rdi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
  const Register t      = rcx;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
  // allocate space for parameters
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  __ get_method(method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
  __ verify_oop(method);
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
   883
  __ load_unsigned_short(t, Address(method, methodOopDesc::size_of_parameters_offset()));
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
   884
  __ shlptr(t, Interpreter::logStackElementSize);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   885
  __ addptr(t, 2*wordSize);     // allocate two more slots for JNIEnv and possible mirror
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   886
  __ subptr(rsp, t);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   887
  __ andptr(rsp, -(StackAlignmentInBytes)); // gcc needs 16 byte aligned stacks to do XMM intrinsics
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
  // get signature handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
  { Label L;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   891
    __ movptr(t, Address(method, methodOopDesc::signature_handler_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   892
    __ testptr(t, t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
    __ jcc(Assembler::notZero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
    __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
    __ get_method(method);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   896
    __ movptr(t, Address(method, methodOopDesc::signature_handler_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
  // call signature handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
  assert(InterpreterRuntime::SignatureHandlerGenerator::from() == rdi, "adjust this code");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
  assert(InterpreterRuntime::SignatureHandlerGenerator::to  () == rsp, "adjust this code");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
  assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == t  , "adjust this code");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
  // The generated handlers do not touch RBX (the method oop).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  // However, large signatures cannot be cached and are generated
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  // each time here.  The slow-path generator will blow RBX
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
  // sometime, so we must reload it after the call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
  __ call(t);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  __ get_method(method);        // slow path call blows RBX on DevStudio 5.0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
  // result handler is in rax,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
  // set result handler
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   913
  __ movptr(Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize), rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  // pass mirror handle if static call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
    const int mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
    __ movl(t, Address(method, methodOopDesc::access_flags_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
    __ testl(t, JVM_ACC_STATIC);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
    __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
    // get mirror
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   922
    __ movptr(t, Address(method, methodOopDesc:: constants_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   923
    __ movptr(t, Address(t, constantPoolOopDesc::pool_holder_offset_in_bytes()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   924
    __ movptr(t, Address(t, mirror_offset));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
    // copy mirror into activation frame
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   926
    __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
    // pass handle to mirror
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   928
    __ lea(t, Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   929
    __ movptr(Address(rsp, wordSize), t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
  // get native function entry point
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
  { Label L;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   935
    __ movptr(rax, Address(method, methodOopDesc::native_function_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
    ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry());
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   937
    __ cmpptr(rax, unsatisfied.addr());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
    __ jcc(Assembler::notEqual, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
    __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
    __ get_method(method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
    __ verify_oop(method);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   942
    __ movptr(rax, Address(method, methodOopDesc::native_function_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
  // pass JNIEnv
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
  __ get_thread(thread);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   948
  __ lea(t, Address(thread, JavaThread::jni_environment_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   949
  __ movptr(Address(rsp, 0), t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
  // set_last_Java_frame_before_call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
  // It is enough that the pc()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
  // points into the right code segment. It does not have to be the correct return pc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  __ set_last_Java_frame(thread, noreg, rbp, __ pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
  // change thread state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
    __ movl(t, Address(thread, JavaThread::thread_state_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
    __ cmpl(t, _thread_in_Java);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
    __ jcc(Assembler::equal, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
    __ stop("Wrong thread state in native stub");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
  // Change state to native
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
  __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
  __ call(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  // result potentially in rdx:rax or ST0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
  // Either restore the MXCSR register after returning from the JNI Call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
  // or verify that it wasn't changed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
  if (VM_Version::supports_sse()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
    if (RestoreMXCSROnJNICalls) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
      __ ldmxcsr(ExternalAddress(StubRoutines::addr_mxcsr_std()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
    else if (CheckJNICalls ) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   980
      __ call(RuntimeAddress(StubRoutines::x86::verify_mxcsr_entry()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
  // Either restore the x87 floating pointer control word after returning
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
  // from the JNI call or verify that it wasn't changed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
  if (CheckJNICalls) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   987
    __ call(RuntimeAddress(StubRoutines::x86::verify_fpu_cntrl_wrd_entry()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
  // save potential result in ST(0) & rdx:rax
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
  // (if result handler is the T_FLOAT or T_DOUBLE handler, result must be in ST0 -
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
  // the check is necessary to avoid potential Intel FPU overflow problems by saving/restoring 'empty' FPU registers)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  // It is safe to do this push because state is _thread_in_native and return address will be found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
  // via _last_native_pc and not via _last_jave_sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
  // NOTE: the order of theses push(es) is known to frame::interpreter_frame_result.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
  // If the order changes or anything else is added to the stack the code in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  // interpreter_frame_result will have to be changed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
    Label push_double;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
    ExternalAddress float_handler(AbstractInterpreter::result_handler(T_FLOAT));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
    ExternalAddress double_handler(AbstractInterpreter::result_handler(T_DOUBLE));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
    __ cmpptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset + 1)*wordSize),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
              float_handler.addr());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
    __ jcc(Assembler::equal, push_double);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
    __ cmpptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset + 1)*wordSize),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
              double_handler.addr());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
    __ jcc(Assembler::notEqual, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
    __ bind(push_double);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
    __ push(dtos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
  __ push(ltos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
  // change thread state
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
  __ get_thread(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
  __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native_trans);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
  if(os::is_MP()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
    if (UseMembar) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1021
      // Force this write out before the read below
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1022
      __ membar(Assembler::Membar_mask_bits(
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1023
           Assembler::LoadLoad | Assembler::LoadStore |
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1024
           Assembler::StoreLoad | Assembler::StoreStore));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
      // Write serialization page so VM thread can do a pseudo remote membar.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
      // We use the current thread pointer to calculate a thread specific
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
      // offset to write to within the page. This minimizes bus traffic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
      // due to cache line collision.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
      __ serialize_memory(thread, rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
  if (AlwaysRestoreFPU) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
    //  Make sure the control word is correct.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
    __ fldcw(ExternalAddress(StubRoutines::addr_fpu_cntrl_wrd_std()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
  // check for safepoint operation in progress and/or pending suspend requests
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
  { Label Continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
    __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
             SafepointSynchronize::_not_synchronized);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
    Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
    __ jcc(Assembler::notEqual, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
    __ cmpl(Address(thread, JavaThread::suspend_flags_offset()), 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
    __ jcc(Assembler::equal, Continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
    // Don't use call_VM as it will see a possible pending exception and forward it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
    // and never return here preventing us from clearing _last_native_pc down below.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
    // Also can't use call_VM_leaf either as it will check to see if rsi & rdi are
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
    // preserved and correspond to the bcp/locals pointers. So we do a runtime call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
    // by hand.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
    //
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1057
    __ push(thread);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
    __ call(RuntimeAddress(CAST_FROM_FN_PTR(address,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
                                            JavaThread::check_special_condition_for_native_trans)));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
    __ increment(rsp, wordSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
    __ get_thread(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
    __ bind(Continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
  // change thread state
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
  __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_Java);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
  __ reset_last_Java_frame(thread, true, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
  // reset handle block
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1072
  __ movptr(t, Address(thread, JavaThread::active_handles_offset()));
1888
bbf498fb4354 6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents: 1217
diff changeset
  1073
  __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
  // If result was an oop then unbox and save it in the frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
    Label no_oop, store_result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
    ExternalAddress handler(AbstractInterpreter::result_handler(T_OBJECT));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
    __ cmpptr(Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
              handler.addr());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
    __ jcc(Assembler::notEqual, no_oop);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1082
    __ cmpptr(Address(rsp, 0), (int32_t)NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
    __ pop(ltos);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1084
    __ testptr(rax, rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
    __ jcc(Assembler::zero, store_result);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
    // unbox
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1087
    __ movptr(rax, Address(rax, 0));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
    __ bind(store_result);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1089
    __ movptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset)*wordSize), rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
    // keep stack depth as expected by pushing oop which will eventually be discarded
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
    __ push(ltos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
    __ bind(no_oop);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
     Label no_reguard;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
     __ cmpl(Address(thread, JavaThread::stack_guard_state_offset()), JavaThread::stack_guard_yellow_disabled);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
     __ jcc(Assembler::notEqual, no_reguard);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1100
     __ pusha();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
     __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages)));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1102
     __ popa();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
     __ bind(no_reguard);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
  // restore rsi to have legal interpreter frame,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
  // i.e., bci == 0 <=> rsi == code_base()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
  // Can't call_VM until bcp is within reasonable.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
  __ get_method(method);      // method is junk from thread_in_native to now.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
  __ verify_oop(method);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1112
  __ movptr(rsi, Address(method,methodOopDesc::const_offset()));   // get constMethodOop
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1113
  __ lea(rsi, Address(rsi,constMethodOopDesc::codes_offset()));    // get codebase
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
  // handle exceptions (exception handling will handle unlocking!)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
  { Label L;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1117
    __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
    __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
    // Note: At some point we may want to unify this with the code used in call_VM_base();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
    //       i.e., we should use the StubRoutines::forward_exception code. For now this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
    //       doesn't work here because the rsp is not correctly set at this point.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
    __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
    __ should_not_reach_here();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
  // do unlocking if necessary
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
    __ movl(t, Address(method, methodOopDesc::access_flags_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
    __ testl(t, JVM_ACC_SYNCHRONIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
    __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
    // the code below should be shared with interpreter macro assembler implementation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
    { Label unlock;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
      // BasicObjectLock will be first in list, since this is a synchronized method. However, need
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
      // to check that the object has not been unlocked by an explicit monitorexit bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
      const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1138
      __ lea(rdx, monitor);                   // address of first monitor
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1140
      __ movptr(t, Address(rdx, BasicObjectLock::obj_offset_in_bytes()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1141
      __ testptr(t, t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
      __ jcc(Assembler::notZero, unlock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
      // Entry already unlocked, need to throw exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
      __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
      __ should_not_reach_here();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
      __ bind(unlock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
      __ unlock_object(rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
  // jvmti/dtrace support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
  // Note: This must happen _after_ handling/throwing any exceptions since
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
  //       the exception handler code notifies the runtime of method exits
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
  //       too. If this happens before, method entry/exit notifications are
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
  //       not properly paired (was bug - gri 11/22/99).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
  __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
  // restore potential result in rdx:rax, call result handler to restore potential result in ST0 & handle result
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
  __ pop(ltos);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1163
  __ movptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
  __ call(t);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
  // remove activation
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1167
  __ movptr(t, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
  __ leave();                                // remove frame anchor
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1169
  __ pop(rdi);                               // get return address
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1170
  __ mov(rsp, t);                            // set sp to sender sp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
  __ jmp(rdi);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
  if (inc_counter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
    // Handle overflow of counter and compile method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
    __ bind(invocation_counter_overflow);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
    generate_counter_overflow(&continue_after_compile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  return entry_point;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
// Generic interpreted method entry to (asm) interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
address InterpreterGenerator::generate_normal_entry(bool synchronized) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
  // determine code generation flags
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
  bool inc_counter  = UseCompiler || CountCompiledCalls;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  // rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
  // rsi: sender sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
  address entry_point = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  const Address size_of_parameters(rbx, methodOopDesc::size_of_parameters_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
  const Address size_of_locals    (rbx, methodOopDesc::size_of_locals_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
  const Address invocation_counter(rbx, methodOopDesc::invocation_counter_offset() + InvocationCounter::counter_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
  const Address access_flags      (rbx, methodOopDesc::access_flags_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
  // get parameter size (always needed)
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
  1200
  __ load_unsigned_short(rcx, size_of_parameters);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
  // rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
  // rcx: size of parameters
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  // rsi: sender_sp (could differ from sp+wordSize if we were called via c2i )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
  1207
  __ load_unsigned_short(rdx, size_of_locals);       // get size of locals in words
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  __ subl(rdx, rcx);                                // rdx = no. of additional locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
  // see if we've got enough room on the stack for locals plus overhead.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
  generate_stack_overflow_check();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
  // get return address
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1214
  __ pop(rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  // compute beginning of parameters (rdi)
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1217
  __ lea(rdi, Address(rsp, rcx, Interpreter::stackElementScale(), -wordSize));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  // rdx - # of additional locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  // allocate space for locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
  // explicitly initialize locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
    Label exit, loop;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
    __ testl(rdx, rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
    __ jcc(Assembler::lessEqual, exit);               // do nothing if rdx <= 0
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
    __ bind(loop);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1227
    __ push((int32_t)NULL_WORD);                      // initialize local variables
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
    __ decrement(rdx);                                // until everything initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
    __ jcc(Assembler::greater, loop);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
    __ bind(exit);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
  if (inc_counter) __ movl(rcx, invocation_counter);  // (pre-)fetch invocation count
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  // initialize fixed part of activation frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  generate_fixed_frame(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  // make sure method is not native & not abstract
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  __ movl(rax, access_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
    Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
    __ testl(rax, JVM_ACC_NATIVE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
    __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
    __ stop("tried to execute native method as non-native");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
    __ testl(rax, JVM_ACC_ABSTRACT);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
    __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
    __ stop("tried to execute abstract method in interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
  // Since at this point in the method invocation the exception handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
  // would try to exit the monitor of synchronized methods which hasn't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
  // been entered yet, we set the thread local variable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
  // _do_not_unlock_if_synchronized to true. The remove_activation will
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
  // check this flag.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
  __ get_thread(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
  const Address do_not_unlock_if_synchronized(rax,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
        in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
  __ movbool(do_not_unlock_if_synchronized, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
  // increment invocation count & check for overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
  Label invocation_counter_overflow;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
  Label profile_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
  Label profile_method_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  if (inc_counter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
    generate_counter_incr(&invocation_counter_overflow, &profile_method, &profile_method_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
    if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
      __ bind(profile_method_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
  Label continue_after_compile;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  __ bind(continue_after_compile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
  bang_stack_shadow_pages(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
  // reset the _do_not_unlock_if_synchronized flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
  __ get_thread(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  __ movbool(do_not_unlock_if_synchronized, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
  // check for synchronized methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  // Must happen AFTER invocation_counter check and stack overflow check,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
  // so method is not locked if overflows.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  if (synchronized) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
    // Allocate monitor and lock method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
    lock_method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
    // no synchronization necessary
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
      { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
        __ movl(rax, access_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
        __ testl(rax, JVM_ACC_SYNCHRONIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
        __ jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
        __ stop("method needs synchronization");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
        __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
  // start execution
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
  { Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
     const Address monitor_block_top (rbp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
                 frame::interpreter_frame_monitor_block_top_offset * wordSize);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1310
    __ movptr(rax, monitor_block_top);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1311
    __ cmpptr(rax, rsp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
    __ jcc(Assembler::equal, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
    __ stop("broken stack frame setup in interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
    __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
  // jvmti support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
  __ notify_method_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
  __ dispatch_next(vtos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
  // invocation counter overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
  if (inc_counter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
    if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
      // We have decided to profile this method in the interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
      __ bind(profile_method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
      __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method), rsi, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1331
      __ movptr(rbx, Address(rbp, method_offset));   // restore methodOop
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1332
      __ movptr(rax, Address(rbx, in_bytes(methodOopDesc::method_data_offset())));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1333
      __ movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
      __ test_method_data_pointer(rax, profile_method_continue);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1335
      __ addptr(rax, in_bytes(methodDataOopDesc::data_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1336
      __ movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
      __ jmp(profile_method_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
    // Handle overflow of counter and compile method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
    __ bind(invocation_counter_overflow);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
    generate_counter_overflow(&continue_after_compile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
  return entry_point;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
//------------------------------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
// Entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
// Here we generate the various kind of entries into the interpreter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
// The two main entry type are generic bytecode methods and native call method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
// These both come in synchronized and non-synchronized versions but the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
// frame layout they create is very similar. The other method entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
// types are really just special purpose entries that are really entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
// and interpretation all in one. These are for trivial methods like
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
// accessor, empty, or special math methods.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
// When control flow reaches any of the entry types for the interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
// the following holds ->
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
// Arguments:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
// rbx,: methodOop
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
// rcx: receiver
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
// Stack layout immediately at entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
// [ return address     ] <--- rsp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
// [ parameter n        ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
//   ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
// [ parameter 1        ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
// [ expression stack   ] (caller's java expression stack)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
// Assuming that we don't go to one of the trivial specialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
// entries the stack will look like below when we are ready to execute
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
// the first bytecode (or call the native routine). The register usage
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
// will be as the template based interpreter expects (see interpreter_x86.hpp).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
// local variables follow incoming parameters immediately; i.e.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
// the return address is moved to the end of the locals).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
// [ monitor entry      ] <--- rsp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
//   ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
// [ monitor entry      ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
// [ expr. stack bottom ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
// [ saved rsi          ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
// [ current rdi        ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
// [ methodOop          ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
// [ saved rbp,          ] <--- rbp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
// [ return address     ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
// [ local variable m   ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
//   ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
// [ local variable 1   ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
// [ parameter n        ]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
//   ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
// [ parameter 1        ] <--- rdi
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
  // determine code generation flags
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
  bool synchronized = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
  address entry_point = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
  switch (kind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
    case Interpreter::zerolocals             :                                                                             break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
    case Interpreter::zerolocals_synchronized: synchronized = true;                                                        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
    case Interpreter::native                 : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false);  break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
    case Interpreter::native_synchronized    : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true);   break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
    case Interpreter::empty                  : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry();        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
    case Interpreter::accessor               : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry();     break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
    case Interpreter::abstract               : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry();     break;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2154
diff changeset
  1412
    case Interpreter::method_handle          : entry_point = ((InterpreterGenerator*)this)->generate_method_handle_entry(); break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
    case Interpreter::java_lang_math_sin     : // fall thru
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
    case Interpreter::java_lang_math_cos     : // fall thru
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
    case Interpreter::java_lang_math_tan     : // fall thru
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
    case Interpreter::java_lang_math_abs     : // fall thru
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
    case Interpreter::java_lang_math_log     : // fall thru
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
    case Interpreter::java_lang_math_log10   : // fall thru
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
    case Interpreter::java_lang_math_sqrt    : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind);     break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
    default                                  : ShouldNotReachHere();                                                       break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
  if (entry_point) return entry_point;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
  return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
4645
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1430
// These should never be compiled since the interpreter will prefer
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1431
// the compiled version to the intrinsic version.
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1432
bool AbstractInterpreter::can_be_compiled(methodHandle m) {
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1433
  switch (method_kind(m)) {
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1434
    case Interpreter::java_lang_math_sin     : // fall thru
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1435
    case Interpreter::java_lang_math_cos     : // fall thru
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1436
    case Interpreter::java_lang_math_tan     : // fall thru
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1437
    case Interpreter::java_lang_math_abs     : // fall thru
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1438
    case Interpreter::java_lang_math_log     : // fall thru
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1439
    case Interpreter::java_lang_math_log10   : // fall thru
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1440
    case Interpreter::java_lang_math_sqrt    :
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1441
      return false;
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1442
    default:
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1443
      return true;
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1444
  }
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1445
}
0c5f5b94e93a 6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents: 4564
diff changeset
  1446
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
// How much stack a method activation needs in words.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
int AbstractInterpreter::size_top_interpreter_activation(methodOop method) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
  const int stub_code = 4;  // see generate_call_stub
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
  // Save space for one monitor to get into the interpreted method in case
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
  // the method is synchronized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
  int monitor_size    = method->is_synchronized() ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
                                1*frame::interpreter_frame_monitor_size() : 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
  // total overhead size: entry_size + (saved rbp, thru expr stack bottom).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
  // be sure to change this if you add/subtract anything to/from the overhead area
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
  const int overhead_size = -frame::interpreter_frame_initial_sp_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2154
diff changeset
  1460
  const int extra_stack = methodOopDesc::extra_stack_entries();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2154
diff changeset
  1461
  const int method_stack = (method->max_locals() + method->max_stack() + extra_stack) *
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1462
                           Interpreter::stackElementWords;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
  return overhead_size + method_stack + stub_code;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
// asm based interpreter deoptimization helpers
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
int AbstractInterpreter::layout_activation(methodOop method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
                                           int tempcount,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
                                           int popframe_extra_args,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
                                           int moncount,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
                                           int callee_param_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
                                           int callee_locals,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
                                           frame* caller,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
                                           frame* interpreter_frame,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
                                           bool is_top_frame) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
  // Note: This calculation must exactly parallel the frame setup
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
  // in AbstractInterpreterGenerator::generate_method_entry.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
  // If interpreter_frame!=NULL, set up the method, locals, and monitors.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
  // The frame interpreter_frame, if not NULL, is guaranteed to be the right size,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
  // as determined by a previous call to this method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
  // It is also guaranteed to be walkable even though it is in a skeletal state
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
  // NOTE: return size is in words not bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
  // fixed size of an interpreter frame:
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1486
  int max_locals = method->max_locals() * Interpreter::stackElementWords;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
  int extra_locals = (method->max_locals() - method->size_of_parameters()) *
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1488
                     Interpreter::stackElementWords;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
  int overhead = frame::sender_sp_offset - frame::interpreter_frame_initial_sp_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
  // Our locals were accounted for by the caller (or last_frame_adjust on the transistion)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
  // Since the callee parameters already account for the callee's params we only need to account for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
  // the extra locals.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
  int size = overhead +
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1498
         ((callee_locals - callee_param_count)*Interpreter::stackElementWords) +
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
         (moncount*frame::interpreter_frame_monitor_size()) +
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1500
         tempcount*Interpreter::stackElementWords + popframe_extra_args;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
  if (interpreter_frame != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
#ifdef ASSERT
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4429
diff changeset
  1504
    if (!EnableMethodHandles)
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4429
diff changeset
  1505
      // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences?
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4429
diff changeset
  1506
      // Probably, since deoptimization doesn't work yet.
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4429
diff changeset
  1507
      assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
    assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
    interpreter_frame->interpreter_frame_set_method(method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
    // NOTE the difference in using sender_sp and interpreter_frame_sender_sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
    // interpreter_frame_sender_sp is the original sp of the caller (the unextended_sp)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
    // and sender_sp is fp+8
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
    intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
    interpreter_frame->interpreter_frame_set_locals(locals);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
    BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
    BasicObjectLock* monbot = montop - moncount;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
    interpreter_frame->interpreter_frame_set_monitor_end(monbot);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
    // Set last_sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
    intptr_t*  rsp = (intptr_t*) monbot  -
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1524
                     tempcount*Interpreter::stackElementWords -
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
                     popframe_extra_args;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
    interpreter_frame->interpreter_frame_set_last_sp(rsp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
    // All frames but the initial (oldest) interpreter frame we fill in have a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
    // value for sender_sp that allows walking the stack but isn't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
    // truly correct. Correct the value here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
    if (extra_locals != 0 &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
        interpreter_frame->sender_sp() == interpreter_frame->interpreter_frame_sender_sp() ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
      interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + extra_locals);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
    *interpreter_frame->interpreter_frame_cache_addr() =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
      method->constants()->cache();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
  return size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
//------------------------------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
// Exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
void TemplateInterpreterGenerator::generate_throw_exception() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
  // Entry point in previous activation (i.e., if the caller was interpreted)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
  Interpreter::_rethrow_exception_entry = __ pc();
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1549
  const Register thread = rcx;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
  // Restore sp to interpreter_frame_last_sp even though we are going
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
  // to empty the expression stack for the exception processing.
1888
bbf498fb4354 6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents: 1217
diff changeset
  1553
  __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
  // rax,: exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
  // rdx: return address/pc that threw exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
  __ restore_bcp();                              // rsi points to call/send
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
  __ restore_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
  // Entry point for exceptions thrown within interpreter code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
  Interpreter::_throw_exception_entry = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
  // expression stack is undefined here
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1562
  // rax,: exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
  // rsi: exception bcp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
  __ verify_oop(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
  // expression stack must be empty before entering the VM in case of an exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
  __ empty_expression_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1568
  __ empty_FPU_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1569
  // find exception handler address and preserve exception oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
  __ call_VM(rdx, CAST_FROM_FN_PTR(address, InterpreterRuntime::exception_handler_for_exception), rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1571
  // rax,: exception handler entry point
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1572
  // rdx: preserved exception oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1573
  // rsi: bcp for exception handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1574
  __ push_ptr(rdx);                              // push exception which is now the only value on the stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1575
  __ jmp(rax);                                   // jump to exception handler (may be _remove_activation_entry!)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1576
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1577
  // If the exception is not handled in the current frame the frame is removed and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1578
  // the exception is rethrown (i.e. exception continuation is _rethrow_exception).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1579
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1580
  // Note: At this point the bci is still the bxi for the instruction which caused
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1581
  //       the exception and the expression stack is empty. Thus, for any VM calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1582
  //       at this point, GC will find a legal oop map (with empty expression stack).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1583
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1584
  // In current activation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1585
  // tos: exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1586
  // rsi: exception bcp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1587
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1588
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1589
  // JVMTI PopFrame support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
   Interpreter::_remove_activation_preserving_args_entry = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
  __ empty_expression_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1594
  __ empty_FPU_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1595
  // Set the popframe_processing bit in pending_popframe_condition indicating that we are
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1596
  // currently handling popframe, so that call_VMs that may happen later do not trigger new
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
  // popframe handling cycles.
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1598
  __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1599
  __ movl(rdx, Address(thread, JavaThread::popframe_condition_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
  __ orl(rdx, JavaThread::popframe_processing_bit);
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1601
  __ movl(Address(thread, JavaThread::popframe_condition_offset()), rdx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
    // Check to see whether we are returning to a deoptimized frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1605
    // (The PopFrame call ensures that the caller of the popped frame is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
    // either interpreted or compiled and deoptimizes it if compiled.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
    // In this case, we can't call dispatch_next() after the frame is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1608
    // popped, but instead must save the incoming arguments and restore
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1609
    // them after deoptimization has occurred.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1610
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1611
    // Note that we don't compare the return PC against the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
    // deoptimization blob's unpack entry because of the presence of
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1613
    // adapter frames in C2.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1614
    Label caller_not_deoptimized;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1615
    __ movptr(rdx, Address(rbp, frame::return_addr_offset * wordSize));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1616
    __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::interpreter_contains), rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1617
    __ testl(rax, rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1618
    __ jcc(Assembler::notZero, caller_not_deoptimized);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1619
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1620
    // Compute size of arguments for saving when returning to deoptimized caller
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1621
    __ get_method(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1622
    __ verify_oop(rax);
2148
09c7f703773b 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 1909
diff changeset
  1623
    __ load_unsigned_short(rax, Address(rax, in_bytes(methodOopDesc::size_of_parameters_offset())));
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5046
diff changeset
  1624
    __ shlptr(rax, Interpreter::logStackElementSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1625
    __ restore_locals();
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1626
    __ subptr(rdi, rax);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1627
    __ addptr(rdi, wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1628
    // Save these arguments
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1629
    __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1630
    __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::popframe_preserve_args), thread, rax, rdi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1631
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1632
    __ remove_activation(vtos, rdx,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1633
                         /* throw_monitor_exception */ false,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1634
                         /* install_monitor_exception */ false,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1635
                         /* notify_jvmdi */ false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1636
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1637
    // Inform deoptimization that it is responsible for restoring these arguments
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1638
    __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1639
    __ movl(Address(thread, JavaThread::popframe_condition_offset()), JavaThread::popframe_force_deopt_reexecution_bit);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1640
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1641
    // Continue in deoptimization handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1642
    __ jmp(rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1643
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1644
    __ bind(caller_not_deoptimized);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1645
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1646
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1647
  __ remove_activation(vtos, rdx,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1648
                       /* throw_monitor_exception */ false,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1649
                       /* install_monitor_exception */ false,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1650
                       /* notify_jvmdi */ false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1651
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1652
  // Finish with popframe handling
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1653
  // A previous I2C followed by a deoptimization might have moved the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
  // outgoing arguments further up the stack. PopFrame expects the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
  // mutations to those outgoing arguments to be preserved and other
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
  // constraints basically require this frame to look exactly as
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
  // though it had previously invoked an interpreted activation with
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
  // no space between the top of the expression stack (current
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1659
  // last_sp) and the top of stack. Rather than force deopt to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1660
  // maintain this kind of invariant all the time we call a small
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
  // fixup routine to move the mutated arguments onto the top of our
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
  // expression stack if necessary.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1663
  __ mov(rax, rsp);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1664
  __ movptr(rbx, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize));
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1665
  __ get_thread(thread);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1666
  // PC must point into interpreter here
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1667
  __ set_last_Java_frame(thread, noreg, rbp, __ pc());
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1668
  __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), thread, rax, rbx);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1669
  __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1670
  __ reset_last_Java_frame(thread, true, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1671
  // Restore the last_sp and null it out
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1672
  __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize));
1888
bbf498fb4354 6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents: 1217
diff changeset
  1673
  __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1674
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1675
  __ restore_bcp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1676
  __ restore_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1677
  // The method data pointer was incremented already during
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1678
  // call profiling. We have to restore the mdp for the current bcp.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1679
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1680
    __ set_method_data_pointer_for_bcp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1681
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1683
  // Clear the popframe condition flag
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1684
  __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1685
  __ movl(Address(thread, JavaThread::popframe_condition_offset()), JavaThread::popframe_inactive);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1686
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1687
  __ dispatch_next(vtos);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1688
  // end of PopFrame support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1689
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1690
  Interpreter::_remove_activation_entry = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1691
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1692
  // preserve exception over this code sequence
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1693
  __ pop_ptr(rax);
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1694
  __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1695
  __ movptr(Address(thread, JavaThread::vm_result_offset()), rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1696
  // remove the activation (without doing throws on illegalMonitorExceptions)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1697
  __ remove_activation(vtos, rdx, false, true, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1698
  // restore exception
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1699
  __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1700
  __ movptr(rax, Address(thread, JavaThread::vm_result_offset()));
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1701
  __ movptr(Address(thread, JavaThread::vm_result_offset()), NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1702
  __ verify_oop(rax);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1703
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1704
  // Inbetween activations - previous activation type unknown yet
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1705
  // compute continuation point - the continuation point expects
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
  // the following registers set up:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1707
  //
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1708
  // rax: exception
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1709
  // rdx: return address/pc that threw exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1710
  // rsp: expression stack of caller
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1711
  // rbp: rbp, of caller
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1712
  __ push(rax);                                  // save exception
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1713
  __ push(rdx);                                  // save return address
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1714
  __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), thread, rdx);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1715
  __ mov(rbx, rax);                              // save exception handler
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1716
  __ pop(rdx);                                   // restore return address
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1717
  __ pop(rax);                                   // restore exception
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1718
  // Note that an "issuing PC" is actually the next PC after the call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1719
  __ jmp(rbx);                                   // jump to exception handler of caller
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1720
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1722
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1723
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1724
// JVMTI ForceEarlyReturn support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1725
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1726
address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1727
  address entry = __ pc();
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1728
  const Register thread = rcx;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1729
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
  __ restore_bcp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1731
  __ restore_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1732
  __ empty_expression_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1733
  __ empty_FPU_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1734
  __ load_earlyret_value(state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1735
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1736
  __ get_thread(thread);
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4645
diff changeset
  1737
  __ movptr(rcx, Address(thread, JavaThread::jvmti_thread_state_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1738
  const Address cond_addr(rcx, JvmtiThreadState::earlyret_state_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1739
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1740
  // Clear the earlyret state
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1741
  __ movl(cond_addr, JvmtiThreadState::earlyret_inactive);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1742
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
  __ remove_activation(state, rsi,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
                       false, /* throw_monitor_exception */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1745
                       false, /* install_monitor_exception */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1746
                       true); /* notify_jvmdi */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
  __ jmp(rsi);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1748
  return entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1749
} // end of ForceEarlyReturn support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1751
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1752
//------------------------------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1753
// Helper for vtos entry point generation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1754
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1755
void TemplateInterpreterGenerator::set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1756
  assert(t->is_valid() && t->tos_in() == vtos, "illegal template");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1757
  Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1758
  fep = __ pc(); __ push(ftos); __ jmp(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1759
  dep = __ pc(); __ push(dtos); __ jmp(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1760
  lep = __ pc(); __ push(ltos); __ jmp(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1761
  aep = __ pc(); __ push(atos); __ jmp(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1762
  bep = cep = sep =             // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1763
  iep = __ pc(); __ push(itos); // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1764
  vep = __ pc(); __ bind(L);    // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1765
  generate_and_dispatch(t);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1766
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1767
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1768
//------------------------------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1769
// Generation of individual instructions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1770
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1771
// helpers for generate_and_dispatch
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1772
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1773
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1774
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1775
InterpreterGenerator::InterpreterGenerator(StubQueue* code)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1776
 : TemplateInterpreterGenerator(code) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1777
   generate_all(); // down here so it can be "virtual"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1778
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1779
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1780
//------------------------------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1781
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1782
// Non-product code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1783
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1784
address TemplateInterpreterGenerator::generate_trace_code(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
  address entry = __ pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1786
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1787
  // prepare expression stack
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1788
  __ pop(rcx);          // pop return address so expression stack is 'pure'
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1789
  __ push(state);       // save tosca
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1790
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1791
  // pass tosca registers as arguments & call tracer
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1792
  __ call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), rcx, rax, rdx);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1793
  __ mov(rcx, rax);     // make sure return address is not destroyed by pop(state)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1794
  __ pop(state);        // restore tosca
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1795
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1796
  // return
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1797
  __ jmp(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1798
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1799
  return entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1800
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1801
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1802
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1803
void TemplateInterpreterGenerator::count_bytecode() {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1804
  __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1805
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1806
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1807
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1808
void TemplateInterpreterGenerator::histogram_bytecode(Template* t) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1809
  __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()]));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1810
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1811
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1812
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1813
void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1814
  __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1815
  __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1816
  __ orl(rbx, ((int)t->bytecode()) << BytecodePairHistogram::log2_number_of_codes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1817
  ExternalAddress table((address) BytecodePairHistogram::_counters);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1818
  Address index(noreg, rbx, Address::times_4);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1819
  __ incrementl(ArrayAddress(table, index));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1820
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1821
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1822
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1823
void TemplateInterpreterGenerator::trace_bytecode(Template* t) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1824
  // Call a little run-time stub to avoid blow-up for each bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1825
  // The run-time runtime saves the right registers, depending on
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1826
  // the tosca in-state for the given template.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1827
  assert(Interpreter::trace_code(t->tos_in()) != NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1828
         "entry must have been generated");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1829
  __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in())));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1830
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1831
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1832
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1833
void TemplateInterpreterGenerator::stop_interpreter_at() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
  Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1835
  __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1836
           StopInterpreterAt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1837
  __ jcc(Assembler::notEqual, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1838
  __ int3();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1839
  __ bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1840
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1841
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1842
#endif // CC_INTERP