jdk8-mips64-public/hotspot: src/share/vm/oops/typeArrayOop.hpp@b92c45f2bc75

7016023: Enable building ARM and PPC from src/closed repository
Reviewed-by: dholmes, bdelsart

     1 /*

     2  * Copyright (c) 1997, 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 #ifndef SHARE_VM_OOPS_TYPEARRAYOOP_HPP

    26 #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP

    28 #include "oops/arrayOop.hpp"

    29 #include "oops/typeArrayKlass.hpp"

    30 #ifdef TARGET_OS_ARCH_linux_x86

    31 # include "orderAccess_linux_x86.inline.hpp"

    32 #endif

    33 #ifdef TARGET_OS_ARCH_linux_sparc

    34 # include "orderAccess_linux_sparc.inline.hpp"

    35 #endif

    36 #ifdef TARGET_OS_ARCH_linux_zero

    37 # include "orderAccess_linux_zero.inline.hpp"

    38 #endif

    39 #ifdef TARGET_OS_ARCH_solaris_x86

    40 # include "orderAccess_solaris_x86.inline.hpp"

    41 #endif

    42 #ifdef TARGET_OS_ARCH_solaris_sparc

    43 # include "orderAccess_solaris_sparc.inline.hpp"

    44 #endif

    45 #ifdef TARGET_OS_ARCH_windows_x86

    46 # include "orderAccess_windows_x86.inline.hpp"

    47 #endif

    48 #ifdef TARGET_OS_ARCH_linux_arm

    49 # include "orderAccess_linux_arm.inline.hpp"

    50 #endif

    51 #ifdef TARGET_OS_ARCH_linux_ppc

    52 # include "orderAccess_linux_ppc.inline.hpp"

    53 #endif

    55 // A typeArrayOop is an array containing basic types (non oop elements).

    56 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs}

    57 #include <limits.h>

    59 class typeArrayOopDesc : public arrayOopDesc {

    60  protected:

    61   jchar*    char_base()   const { return (jchar*)   base(T_CHAR); }

    62   jboolean* bool_base()   const { return (jboolean*)base(T_BOOLEAN); }

    63   jbyte*    byte_base()   const { return (jbyte*)   base(T_BYTE); }

    64   jint*     int_base()    const { return (jint*)    base(T_INT); }

    65   jlong*    long_base()   const { return (jlong*)   base(T_LONG); }

    66   jshort*   short_base()  const { return (jshort*)  base(T_SHORT); }

    67   jfloat*   float_base()  const { return (jfloat*)  base(T_FLOAT); }

    68   jdouble*  double_base() const { return (jdouble*) base(T_DOUBLE); }

    70   friend class typeArrayKlass;

    72  public:

    73   jbyte* byte_at_addr(int which) const {

    74     assert(is_within_bounds(which), "index out of bounds");

    75     return &byte_base()[which];

    76   }

    78   jboolean* bool_at_addr(int which) const {

    79     assert(is_within_bounds(which), "index out of bounds");

    80     return &bool_base()[which];

    81   }

    83   jchar* char_at_addr(int which) const {

    84     assert(is_within_bounds(which), "index out of bounds");

    85     return &char_base()[which];

    86   }

    88   jint* int_at_addr(int which) const {

    89     assert(is_within_bounds(which), "index out of bounds");

    90     return &int_base()[which];

    91   }

    93   jshort* short_at_addr(int which) const {

    94     assert(is_within_bounds(which), "index out of bounds");

    95     return &short_base()[which];

    96   }

    98   jushort* ushort_at_addr(int which) const {  // for field descriptor arrays

    99     assert(is_within_bounds(which), "index out of bounds");

   100     return (jushort*) &short_base()[which];

   101   }

   103   jlong* long_at_addr(int which) const {

   104     assert(is_within_bounds(which), "index out of bounds");

   105     return &long_base()[which];

   106   }

   108   jfloat* float_at_addr(int which) const {

   109     assert(is_within_bounds(which), "index out of bounds");

   110     return &float_base()[which];

   111   }

   113   jdouble* double_at_addr(int which) const {

   114     assert(is_within_bounds(which), "index out of bounds");

   115     return &double_base()[which];

   116   }

   118   jbyte byte_at(int which) const                  { return *byte_at_addr(which); }

   119   void byte_at_put(int which, jbyte contents)     { *byte_at_addr(which) = contents; }

   121   jboolean bool_at(int which) const               { return *bool_at_addr(which); }

   122   void bool_at_put(int which, jboolean contents)  { *bool_at_addr(which) = contents; }

   124   jchar char_at(int which) const                  { return *char_at_addr(which); }

   125   void char_at_put(int which, jchar contents)     { *char_at_addr(which) = contents; }

   127   jint int_at(int which) const                    { return *int_at_addr(which); }

   128   void int_at_put(int which, jint contents)       { *int_at_addr(which) = contents; }

   130   jshort short_at(int which) const                { return *short_at_addr(which); }

   131   void short_at_put(int which, jshort contents)   { *short_at_addr(which) = contents; }

   133   jushort ushort_at(int which) const              { return *ushort_at_addr(which); }

   134   void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; }

   136   jlong long_at(int which) const                  { return *long_at_addr(which); }

   137   void long_at_put(int which, jlong contents)     { *long_at_addr(which) = contents; }

   139   jfloat float_at(int which) const                { return *float_at_addr(which); }

   140   void float_at_put(int which, jfloat contents)   { *float_at_addr(which) = contents; }

   142   jdouble double_at(int which) const              { return *double_at_addr(which); }

   143   void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; }

   145   jbyte byte_at_acquire(int which) const              { return OrderAccess::load_acquire(byte_at_addr(which)); }

   146   void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); }

   148   // Sizing

   150   // Returns the number of words necessary to hold an array of "len"

   151   // elements each of the given "byte_size".

   152  private:

   153   static int object_size(int lh, int length) {

   154     int instance_header_size = Klass::layout_helper_header_size(lh);

   155     int element_shift = Klass::layout_helper_log2_element_size(lh);

   156     DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));

   157     assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");

   159     julong size_in_bytes = length;

   160     size_in_bytes <<= element_shift;

   161     size_in_bytes += instance_header_size;

   162     julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);

   163     assert(size_in_words <= (julong)max_jint, "no overflow");

   165     return align_object_size((intptr_t)size_in_words);

   166   }

   168  public:

   169   int object_size() {

   170     typeArrayKlass* tk = typeArrayKlass::cast(klass());

   171     return object_size(tk->layout_helper(), length());

   172   }

   173 };

   175 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP

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