jdk8-mips64-public/hotspot: src/cpu/zero/vm/interpreterRT

     1 /*

     2  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2007, 2008, 2010 Red Hat, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "interpreter/interpreter.hpp"

    28 #include "interpreter/interpreterRuntime.hpp"

    29 #include "memory/allocation.inline.hpp"

    30 #include "memory/universe.inline.hpp"

    31 #include "oops/method.hpp"

    32 #include "oops/oop.inline.hpp"

    33 #include "runtime/handles.inline.hpp"

    34 #include "runtime/icache.hpp"

    35 #include "runtime/interfaceSupport.hpp"

    36 #include "runtime/signature.hpp"

    37 #include "stack_zero.inline.hpp"

    39 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() {

    40   push(T_INT);

    41   _cif->nargs++;

    42 }

    44 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() {

    45   push(T_LONG);

    46   _cif->nargs++;

    47 }

    49 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() {

    50   push(T_FLOAT);

    51   _cif->nargs++;

    52 }

    54 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() {

    55   push(T_DOUBLE);

    56   _cif->nargs++;

    57 }

    59 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() {

    60   push(T_OBJECT);

    61   _cif->nargs++;

    62 }

    64 void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) {

    65   ffi_type *ftype;

    66   switch (type) {

    67   case T_VOID:

    68     ftype = &ffi_type_void;

    69     break;

    71   case T_BOOLEAN:

    72     ftype = &ffi_type_uint8;

    73     break;

    75   case T_CHAR:

    76     ftype = &ffi_type_uint16;

    77     break;

    79   case T_BYTE:

    80     ftype = &ffi_type_sint8;

    81     break;

    83   case T_SHORT:

    84     ftype = &ffi_type_sint16;

    85     break;

    87   case T_INT:

    88     ftype = &ffi_type_sint32;

    89     break;

    91   case T_LONG:

    92     ftype = &ffi_type_sint64;

    93     break;

    95   case T_FLOAT:

    96     ftype = &ffi_type_float;

    97     break;

    99   case T_DOUBLE:

   100     ftype = &ffi_type_double;

   101     break;

   103   case T_OBJECT:

   104   case T_ARRAY:

   105     ftype = &ffi_type_pointer;

   106     break;

   108   default:

   109     ShouldNotReachHere();

   110   }

   111   push((intptr_t) ftype);

   112 }

   114 // For fast signature handlers the "signature handler" is generated

   115 // into a temporary buffer.  It is then copied to its final location,

   116 // and pd_set_handler is called on it.  We have this two stage thing

   117 // to accomodate this.

   119 void InterpreterRuntime::SignatureHandlerGeneratorBase::generate(

   120   uint64_t fingerprint) {

   122   // Build the argument types list

   123   pass_object();

   124   if (method()->is_static())

   125     pass_object();

   126   iterate(fingerprint);

   128   // Tack on the result type

   129   push(method()->result_type());

   130 }

   132 void InterpreterRuntime::SignatureHandler::finalize() {

   133   ffi_status status =

   134     ffi_prep_cif(cif(),

   135                  FFI_DEFAULT_ABI,

   136                  argument_count(),

   137                  result_type(),

   138                  argument_types());

   140   assert(status == FFI_OK, "should be");

   141 }

   143 IRT_ENTRY(address,

   144           InterpreterRuntime::slow_signature_handler(JavaThread* thread,

   145                                                      Method*     method,

   146                                                      intptr_t*   unused1,

   147                                                      intptr_t*   unused2))

   148   ZeroStack *stack = thread->zero_stack();

   150   int required_words =

   151     (align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) +

   152     (method->is_static() ? 2 : 1) + method->size_of_parameters() + 1;

   154   stack->overflow_check(required_words, CHECK_NULL);

   156   intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize);

   157   SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf);

   158   sshg.generate(UCONST64(-1));

   160   SignatureHandler *handler = sshg.handler();

   161   handler->finalize();

   163   return (address) handler;

   164 IRT_END

   166 void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) {

   167   InterpreterRuntime::SignatureHandler *handler =

   168     InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr);

   170   handler->finalize();

   171 }

src/cpu/zero/vm/interpreterRT_zero.cpp@a9becfeecd1b