1 /*

     2  * Copyright 2002 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  */

    24 

    25 // Platform specific for C++ based Interpreter

    26 #define LOTS_OF_REGS    /* Lets interpreter use plenty of registers */

    27 

    28 private:

    29 

    30     // save the bottom of the stack after frame manager setup. For ease of restoration after return

    31     // from recursive interpreter call

    32     intptr_t*  _frame_bottom;             /* saved bottom of frame manager frame */

    33     intptr_t* _last_Java_pc;              /* pc to return to in frame manager */

    34     interpreterState _self_link;          /*  Previous interpreter state  */ /* sometimes points to self??? */

    35     double    _native_fresult;            /* save result of native calls that might return floats */

    36     intptr_t  _native_lresult;            /* save result of native calls that might return handle/longs */

    37 public:

    38 

    39     static void pd_layout_interpreterState(interpreterState istate, address last_Java_pc, intptr_t* last_Java_fp);

    40 

    41 

    42 #define SET_LAST_JAVA_FRAME()

    43 

    44 #define RESET_LAST_JAVA_FRAME() THREAD->frame_anchor()->set_flags(0);

    45 

    46 /*

    47  * Macros for accessing the stack.

    48  */

    49 #undef STACK_INT

    50 #undef STACK_FLOAT

    51 #undef STACK_ADDR

    52 #undef STACK_OBJECT

    53 #undef STACK_DOUBLE

    54 #undef STACK_LONG

    55 // JavaStack Implementation

    56 

    57 

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

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

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

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

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

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

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

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

    66 

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

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

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

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

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

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

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

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

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

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

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

    78 

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

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

    81 #define LOCALS_INT(offset)     ((jint)(locals[-(offset)]))

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

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

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

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

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

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

    88 

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

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

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

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

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

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

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

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

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

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

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