src/share/vm/interpreter/cppInterpreter.cpp

Wed, 28 May 2008 21:06:24 -0700

author
coleenp
date
Wed, 28 May 2008 21:06:24 -0700
changeset 602
feeb96a45707
parent 435
a61af66fc99e
child 1145
e5b0439ef4ae
permissions
-rw-r--r--

6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
Summary: decouple set_klass() with zeroing the gap when compressed.
Reviewed-by: kvn, ysr, jrose

     1 /*
     2  * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 #include "incls/_precompiled.incl"
    26 #include "incls/_cppInterpreter.cpp.incl"
    28 #ifdef CC_INTERP
    29 # define __ _masm->
    31 void CppInterpreter::initialize() {
    32   if (_code != NULL) return;
    33   AbstractInterpreter::initialize();
    35   // generate interpreter
    36   { ResourceMark rm;
    37     TraceTime timer("Interpreter generation", TraceStartupTime);
    38     int code_size = InterpreterCodeSize;
    39     NOT_PRODUCT(code_size *= 4;)  // debug uses extra interpreter code space
    40     _code = new StubQueue(new InterpreterCodeletInterface, code_size, NULL,
    41                           "Interpreter");
    42     InterpreterGenerator g(_code);
    43     if (PrintInterpreter) print();
    44   }
    47   // Allow c++ interpreter to do one initialization now that switches are set, etc.
    48   BytecodeInterpreter start_msg(BytecodeInterpreter::initialize);
    49   if (JvmtiExport::can_post_interpreter_events())
    50     BytecodeInterpreter::runWithChecks(&start_msg);
    51   else
    52     BytecodeInterpreter::run(&start_msg);
    53 }
    56 address    CppInterpreter::_tosca_to_stack         [AbstractInterpreter::number_of_result_handlers];
    57 address    CppInterpreter::_stack_to_stack         [AbstractInterpreter::number_of_result_handlers];
    58 address    CppInterpreter::_stack_to_native_abi    [AbstractInterpreter::number_of_result_handlers];
    60 CppInterpreterGenerator::CppInterpreterGenerator(StubQueue* _code): AbstractInterpreterGenerator(_code) {
    61 }
    63 static const BasicType types[Interpreter::number_of_result_handlers] = {
    64   T_BOOLEAN,
    65   T_CHAR   ,
    66   T_BYTE   ,
    67   T_SHORT  ,
    68   T_INT    ,
    69   T_LONG   ,
    70   T_VOID   ,
    71   T_FLOAT  ,
    72   T_DOUBLE ,
    73   T_OBJECT
    74 };
    76 void CppInterpreterGenerator::generate_all() {
    77   AbstractInterpreterGenerator::generate_all();
    79   { CodeletMark cm(_masm, "result handlers for native calls");
    80     // The various result converter stublets.
    81     int is_generated[Interpreter::number_of_result_handlers];
    82     memset(is_generated, 0, sizeof(is_generated));
    83     int _tosca_to_stack_is_generated[Interpreter::number_of_result_handlers];
    84     int _stack_to_stack_is_generated[Interpreter::number_of_result_handlers];
    85     int _stack_to_native_abi_is_generated[Interpreter::number_of_result_handlers];
    87     memset(_tosca_to_stack_is_generated, 0, sizeof(_tosca_to_stack_is_generated));
    88     memset(_stack_to_stack_is_generated, 0, sizeof(_stack_to_stack_is_generated));
    89     memset(_stack_to_native_abi_is_generated, 0, sizeof(_stack_to_native_abi_is_generated));
    90     for (int i = 0; i < Interpreter::number_of_result_handlers; i++) {
    91       BasicType type = types[i];
    92       if (!is_generated[Interpreter::BasicType_as_index(type)]++) {
    93         Interpreter::_native_abi_to_tosca[Interpreter::BasicType_as_index(type)] = generate_result_handler_for(type);
    94       }
    95       if (!_tosca_to_stack_is_generated[Interpreter::BasicType_as_index(type)]++) {
    96         Interpreter::_tosca_to_stack[Interpreter::BasicType_as_index(type)] = generate_tosca_to_stack_converter(type);
    97       }
    98       if (!_stack_to_stack_is_generated[Interpreter::BasicType_as_index(type)]++) {
    99         Interpreter::_stack_to_stack[Interpreter::BasicType_as_index(type)] = generate_stack_to_stack_converter(type);
   100       }
   101       if (!_stack_to_native_abi_is_generated[Interpreter::BasicType_as_index(type)]++) {
   102         Interpreter::_stack_to_native_abi[Interpreter::BasicType_as_index(type)] = generate_stack_to_native_abi_converter(type);
   103       }
   104     }
   105   }
   108 #define method_entry(kind) Interpreter::_entry_table[Interpreter::kind] = generate_method_entry(Interpreter::kind)
   110   { CodeletMark cm(_masm, "(kind = frame_manager)");
   111     // all non-native method kinds
   112     method_entry(zerolocals);
   113     method_entry(zerolocals_synchronized);
   114     method_entry(empty);
   115     method_entry(accessor);
   116     method_entry(abstract);
   117     method_entry(java_lang_math_sin   );
   118     method_entry(java_lang_math_cos   );
   119     method_entry(java_lang_math_tan   );
   120     method_entry(java_lang_math_abs   );
   121     method_entry(java_lang_math_sqrt  );
   122     method_entry(java_lang_math_log   );
   123     method_entry(java_lang_math_log10 );
   124     Interpreter::_native_entry_begin = Interpreter::code()->code_end();
   125     method_entry(native);
   126     method_entry(native_synchronized);
   127     Interpreter::_native_entry_end = Interpreter::code()->code_end();
   128   }
   131 #undef method_entry
   133 }
   135 #endif // CC_INTERP

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