jdk8-mips64-public/hotspot: src/cpu/x86/vm/interpreterRT_x86

7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
Reviewed-by: kvn, never

     1 /*

     2  * Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "interpreter/interpreter.hpp"

    27 #include "interpreter/interpreterRuntime.hpp"

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

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

    30 #include "oops/methodOop.hpp"

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

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

    33 #include "runtime/icache.hpp"

    34 #include "runtime/interfaceSupport.hpp"

    35 #include "runtime/signature.hpp"

    38 #define __ _masm->

    41 // Implementation of SignatureHandlerGenerator

    42 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {

    43   move(offset(), jni_offset() + 1);

    44 }

    46 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {

    47   move(offset(), jni_offset() + 1);

    48 }

    50 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {

    51    move(offset(), jni_offset() + 2);

    52    move(offset() + 1, jni_offset() + 1);

    53 }

    55 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {

    56   box (offset(), jni_offset() + 1);

    57 }

    59 void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) {

    60   __ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));

    61   __ movl(Address(to(), to_offset * wordSize), temp());

    62 }

    65 void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) {

    66   __ lea(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));

    67   __ cmpptr(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), (int32_t)NULL_WORD); // do not use temp() to avoid AGI

    68   Label L;

    69   __ jcc(Assembler::notZero, L);

    70   __ movptr(temp(), NULL_WORD);

    71   __ bind(L);

    72   __ movptr(Address(to(), to_offset * wordSize), temp());

    73 }

    76 void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) {

    77   // generate code to handle arguments

    78   iterate(fingerprint);

    79   // return result handler

    80   __ lea(rax,

    81          ExternalAddress((address)Interpreter::result_handler(method()->result_type())));

    82   // return

    83   __ ret(0);

    84   __ flush();

    85 }

    88 Register InterpreterRuntime::SignatureHandlerGenerator::from()       { return rdi; }

    89 Register InterpreterRuntime::SignatureHandlerGenerator::to()         { return rsp; }

    90 Register InterpreterRuntime::SignatureHandlerGenerator::temp()       { return rcx; }

    93 // Implementation of SignatureHandlerLibrary

    95 void SignatureHandlerLibrary::pd_set_handler(address handler) {}

    97 class SlowSignatureHandler: public NativeSignatureIterator {

    98  private:

    99   address   _from;

   100   intptr_t* _to;

   102   virtual void pass_int() {

   103     *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));

   104     _from -= Interpreter::stackElementSize;

   105   }

   107   virtual void pass_float() {

   108     *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));

   109     _from -= Interpreter::stackElementSize;

   110   }

   112   virtual void pass_long() {

   113     _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));

   114     _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));

   115     _to += 2;

   116     _from -= 2*Interpreter::stackElementSize;

   117   }

   119   virtual void pass_object() {

   120     // pass address of from

   121     intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));

   122     *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;

   123     _from -= Interpreter::stackElementSize;

   124    }

   126  public:

   127   SlowSignatureHandler(methodHandle method, address from, intptr_t* to) :

   128     NativeSignatureIterator(method) {

   129     _from = from;

   130     _to   = to + (is_static() ? 2 : 1);

   131   }

   132 };

   134 IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* thread, methodOopDesc* method, intptr_t* from, intptr_t* to))

   135   methodHandle m(thread, (methodOop)method);

   136   assert(m->is_native(), "sanity check");

   137   // handle arguments

   138   SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1));

   139   // return result handler

   140   return Interpreter::result_handler(m->result_type());

   141 IRT_END

src/cpu/x86/vm/interpreterRT_x86_32.cpp@45a1bf98f1bb