1 /*

     2  * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.

     3  * Copyright 2007, 2008 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    21  * CA 95054 USA or visit www.sun.com if you need additional information or

    22  * have any questions.

    23  *

    24  */

    25 

    26 // Platform specific for C++ based Interpreter

    27 

    28 #if defined(PPC) || defined(SPARC) || defined(IA64)

    29 #define LOTS_OF_REGS   // Use plenty of registers

    30 #else

    31 #undef LOTS_OF_REGS    // Loser platforms

    32 #endif

    33 

    34  private:

    35   interpreterState _self_link;

    36 

    37  public:

    38   inline void set_locals(intptr_t* new_locals) {

    39     _locals = new_locals;

    40   }

    41   inline void set_method(methodOop new_method) {

    42     _method = new_method;

    43   }

    44   inline interpreterState self_link() {

    45     return _self_link;

    46   }

    47   inline void set_self_link(interpreterState new_self_link) {

    48     _self_link = new_self_link;

    49   }

    50   inline interpreterState prev_link() {

    51     return _prev_link;

    52   }

    53   inline void set_prev_link(interpreterState new_prev_link) {

    54     _prev_link = new_prev_link;

    55   }

    56   inline void set_stack_limit(intptr_t* new_stack_limit) {

    57     _stack_limit = new_stack_limit;

    58   }

    59   inline void set_stack_base(intptr_t* new_stack_base) {

    60     _stack_base = new_stack_base;

    61   }

    62   inline void set_monitor_base(BasicObjectLock *new_monitor_base) {

    63     _monitor_base = new_monitor_base;

    64   }

    65   inline void set_thread(JavaThread* new_thread) {

    66     _thread = new_thread;

    67   }

    68   inline void set_constants(constantPoolCacheOop new_constants) {

    69     _constants = new_constants;

    70   }

    71   inline oop oop_temp() {

    72     return _oop_temp;

    73   }

    74   inline oop *oop_temp_addr() {

    75     return &_oop_temp;

    76   }

    77   inline void set_oop_temp(oop new_oop_temp) {

    78     _oop_temp = new_oop_temp;

    79   }

    80   inline address callee_entry_point() {

    81     return _result._to_call._callee_entry_point;

    82   }

    83   inline address osr_buf() {

    84     return _result._osr._osr_buf;

    85   }

    86   inline address osr_entry() {

    87     return _result._osr._osr_entry;

    88   }

    89 

    90  public:

    91   const char *name_of_field_at_address(address addr);

    92 

    93 // The frame manager handles this

    94 #define SET_LAST_JAVA_FRAME()

    95 #define RESET_LAST_JAVA_FRAME()

    96 

    97 // ZeroStack Implementation

    98 

    99 #undef STACK_INT

   100 #undef STACK_FLOAT

   101 #undef STACK_ADDR

   102 #undef STACK_OBJECT

   103 #undef STACK_DOUBLE

   104 #undef STACK_LONG

   105 

   106 #define GET_STACK_SLOT(offset)    (*((intptr_t*) &topOfStack[-(offset)]))

   107 #define STACK_SLOT(offset)    ((address) &topOfStack[-(offset)])

   108 #define STACK_ADDR(offset)    (*((address *) &topOfStack[-(offset)]))

   109 #define STACK_INT(offset)     (*((jint*) &topOfStack[-(offset)]))

   110 #define STACK_FLOAT(offset)   (*((jfloat *) &topOfStack[-(offset)]))

   111 #define STACK_OBJECT(offset)  (*((oop *) &topOfStack [-(offset)]))

   112 #define STACK_DOUBLE(offset)  (((VMJavaVal64*) &topOfStack[-(offset)])->d)

   113 #define STACK_LONG(offset)    (((VMJavaVal64 *) &topOfStack[-(offset)])->l)

   114 

   115 #define SET_STACK_SLOT(value, offset)   (*(intptr_t*)&topOfStack[-(offset)] = *(intptr_t*)(value))

   116 #define SET_STACK_ADDR(value, offset)   (*((address *)&topOfStack[-(offset)]) = (value))

   117 #define SET_STACK_INT(value, offset)    (*((jint *)&topOfStack[-(offset)]) = (value))

   118 #define SET_STACK_FLOAT(value, offset)  (*((jfloat *)&topOfStack[-(offset)]) = (value))

   119 #define SET_STACK_OBJECT(value, offset) (*((oop *)&topOfStack[-(offset)]) = (value))

   120 #define SET_STACK_DOUBLE(value, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->d = (value))

   121 #define SET_STACK_DOUBLE_FROM_ADDR(addr, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->d =  \

   122                                                  ((VMJavaVal64*)(addr))->d)

   123 #define SET_STACK_LONG(value, offset)   (((VMJavaVal64*)&topOfStack[-(offset)])->l = (value))

   124 #define SET_STACK_LONG_FROM_ADDR(addr, offset)   (((VMJavaVal64*)&topOfStack[-(offset)])->l =  \

   125                                                  ((VMJavaVal64*)(addr))->l)

   126 // JavaLocals implementation

   127 

   128 #define LOCALS_SLOT(offset)    ((intptr_t*)&locals[-(offset)])

   129 #define LOCALS_ADDR(offset)    ((address)locals[-(offset)])

   130 #define LOCALS_INT(offset)     (*((jint*)&locals[-(offset)]))

   131 #define LOCALS_FLOAT(offset)   (*((jfloat*)&locals[-(offset)]))

   132 #define LOCALS_OBJECT(offset)  ((oop)locals[-(offset)])

   133 #define LOCALS_DOUBLE(offset)  (((VMJavaVal64*)&locals[-((offset) + 1)])->d)

   134 #define LOCALS_LONG(offset)    (((VMJavaVal64*)&locals[-((offset) + 1)])->l)

   135 #define LOCALS_LONG_AT(offset) (((address)&locals[-((offset) + 1)]))

   136 #define LOCALS_DOUBLE_AT(offset) (((address)&locals[-((offset) + 1)]))

   137 

   138 #define SET_LOCALS_SLOT(value, offset)    (*(intptr_t*)&locals[-(offset)] = *(intptr_t *)(value))

   139 #define SET_LOCALS_ADDR(value, offset)    (*((address *)&locals[-(offset)]) = (value))

   140 #define SET_LOCALS_INT(value, offset)     (*((jint *)&locals[-(offset)]) = (value))

   141 #define SET_LOCALS_FLOAT(value, offset)   (*((jfloat *)&locals[-(offset)]) = (value))

   142 #define SET_LOCALS_OBJECT(value, offset)  (*((oop *)&locals[-(offset)]) = (value))

   143 #define SET_LOCALS_DOUBLE(value, offset)  (((VMJavaVal64*)&locals[-((offset)+1)])->d = (value))

   144 #define SET_LOCALS_LONG(value, offset)    (((VMJavaVal64*)&locals[-((offset)+1)])->l = (value))

   145 #define SET_LOCALS_DOUBLE_FROM_ADDR(addr, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->d = \

   146                                                   ((VMJavaVal64*)(addr))->d)

   147 #define SET_LOCALS_LONG_FROM_ADDR(addr, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->l = \

   148                                                 ((VMJavaVal64*)(addr))->l)