1 /*
2 * Copyright (c) 2002, 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 */
24
25 #ifndef CPU_X86_VM_BYTECODEINTERPRETER_X86_HPP
26 #define CPU_X86_VM_BYTECODEINTERPRETER_X86_HPP
27
28 // Platform specific for C++ based Interpreter
29
30 private:
31
32 interpreterState _self_link; /* Previous interpreter state */ /* sometimes points to self??? */
33 address _result_handler; /* temp for saving native result handler */
34 intptr_t* _sender_sp; /* sender's sp before stack (locals) extension */
35
36 address _extra_junk1; /* temp to save on recompiles */
37 address _extra_junk2; /* temp to save on recompiles */
38 address _extra_junk3; /* temp to save on recompiles */
39 // address dummy_for_native2; /* a native frame result handler would be here... */
40 // address dummy_for_native1; /* native result type stored here in a interpreter native frame */
41 address _extra_junk4; /* temp to save on recompiles */
42 address _extra_junk5; /* temp to save on recompiles */
43 address _extra_junk6; /* temp to save on recompiles */
44 public:
45 // we have an interpreter frame...
46 inline intptr_t* sender_sp() {
47 return _sender_sp;
48 }
49
50 // The interpreter always has the frame anchor fully setup so we don't
51 // have to do anything going to vm from the interpreter. On return
52 // we do have to clear the flags in case they we're modified to
53 // maintain the stack walking invariants.
54 //
55 #define SET_LAST_JAVA_FRAME()
56
57 #define RESET_LAST_JAVA_FRAME()
58
59 /*
60 * Macros for accessing the stack.
61 */
62 #undef STACK_INT
63 #undef STACK_FLOAT
64 #undef STACK_ADDR
65 #undef STACK_OBJECT
66 #undef STACK_DOUBLE
67 #undef STACK_LONG
68
69 // JavaStack Implementation
70
71 #define GET_STACK_SLOT(offset) (*((intptr_t*) &topOfStack[-(offset)]))
72 #define STACK_SLOT(offset) ((address) &topOfStack[-(offset)])
73 #define STACK_ADDR(offset) (*((address *) &topOfStack[-(offset)]))
74 #define STACK_INT(offset) (*((jint*) &topOfStack[-(offset)]))
75 #define STACK_FLOAT(offset) (*((jfloat *) &topOfStack[-(offset)]))
76 #define STACK_OBJECT(offset) (*((oop *) &topOfStack [-(offset)]))
77 #define STACK_DOUBLE(offset) (((VMJavaVal64*) &topOfStack[-(offset)])->d)
78 #define STACK_LONG(offset) (((VMJavaVal64 *) &topOfStack[-(offset)])->l)
79
80 #define SET_STACK_SLOT(value, offset) (*(intptr_t*)&topOfStack[-(offset)] = *(intptr_t*)(value))
81 #define SET_STACK_ADDR(value, offset) (*((address *)&topOfStack[-(offset)]) = (value))
82 #define SET_STACK_INT(value, offset) (*((jint *)&topOfStack[-(offset)]) = (value))
83 #define SET_STACK_FLOAT(value, offset) (*((jfloat *)&topOfStack[-(offset)]) = (value))
84 #define SET_STACK_OBJECT(value, offset) (*((oop *)&topOfStack[-(offset)]) = (value))
85 #define SET_STACK_DOUBLE(value, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->d = (value))
86 #define SET_STACK_DOUBLE_FROM_ADDR(addr, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->d = \
87 ((VMJavaVal64*)(addr))->d)
88 #define SET_STACK_LONG(value, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->l = (value))
89 #define SET_STACK_LONG_FROM_ADDR(addr, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->l = \
90 ((VMJavaVal64*)(addr))->l)
91 // JavaLocals implementation
92
93 #define LOCALS_SLOT(offset) ((intptr_t*)&locals[-(offset)])
94 #define LOCALS_ADDR(offset) ((address)locals[-(offset)])
95 #define LOCALS_INT(offset) ((jint)(locals[-(offset)]))
96 #define LOCALS_FLOAT(offset) (*((jfloat*)&locals[-(offset)]))
97 #define LOCALS_OBJECT(offset) ((oop)locals[-(offset)])
98 #define LOCALS_DOUBLE(offset) (((VMJavaVal64*)&locals[-((offset) + 1)])->d)
99 #define LOCALS_LONG(offset) (((VMJavaVal64*)&locals[-((offset) + 1)])->l)
100 #define LOCALS_LONG_AT(offset) (((address)&locals[-((offset) + 1)]))
101 #define LOCALS_DOUBLE_AT(offset) (((address)&locals[-((offset) + 1)]))
102
103 #define SET_LOCALS_SLOT(value, offset) (*(intptr_t*)&locals[-(offset)] = *(intptr_t *)(value))
104 #define SET_LOCALS_ADDR(value, offset) (*((address *)&locals[-(offset)]) = (value))
105 #define SET_LOCALS_INT(value, offset) (*((jint *)&locals[-(offset)]) = (value))
106 #define SET_LOCALS_FLOAT(value, offset) (*((jfloat *)&locals[-(offset)]) = (value))
107 #define SET_LOCALS_OBJECT(value, offset) (*((oop *)&locals[-(offset)]) = (value))
108 #define SET_LOCALS_DOUBLE(value, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->d = (value))
109 #define SET_LOCALS_LONG(value, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->l = (value))
110 #define SET_LOCALS_DOUBLE_FROM_ADDR(addr, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->d = \
111 ((VMJavaVal64*)(addr))->d)
112 #define SET_LOCALS_LONG_FROM_ADDR(addr, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->l = \
113 ((VMJavaVal64*)(addr))->l)
114
115 #endif // CPU_X86_VM_BYTECODEINTERPRETER_X86_HPP