nativeInst_zero.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2007 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26// We have interfaces for the following instructions:
27// - NativeInstruction
28// - - NativeCall
29// - - NativeMovConstReg
30// - - NativeMovConstRegPatching
31// - - NativeJump
32// - - NativeIllegalOpCode
33// - - NativeReturn
34// - - NativeReturnX (return with argument)
35// - - NativePushConst
36// - - NativeTstRegMem
37
38// The base class for different kinds of native instruction abstractions.
39// Provides the primitive operations to manipulate code relative to this.
40
41class NativeInstruction VALUE_OBJ_CLASS_SPEC {
42 public:
43  bool is_jump() {
44    ShouldNotCallThis();
45  }
46
47  bool is_safepoint_poll() {
48    ShouldNotCallThis();
49  }
50};
51
52inline NativeInstruction* nativeInstruction_at(address address) {
53  ShouldNotCallThis();
54}
55
56class NativeCall : public NativeInstruction {
57 public:
58  enum zero_specific_constants {
59    instruction_size = 0 // not used within the interpreter
60  };
61
62  address instruction_address() const {
63    ShouldNotCallThis();
64  }
65
66  address next_instruction_address() const {
67    ShouldNotCallThis();
68  }
69
70  address return_address() const {
71    ShouldNotCallThis();
72  }
73
74  address destination() const {
75    ShouldNotCallThis();
76  }
77
78  void set_destination_mt_safe(address dest) {
79    ShouldNotCallThis();
80  }
81
82  void verify_alignment() {
83    ShouldNotCallThis();
84  }
85
86  void verify() {
87    ShouldNotCallThis();
88  }
89
90  static bool is_call_before(address return_address) {
91    ShouldNotCallThis();
92  }
93};
94
95inline NativeCall* nativeCall_before(address return_address) {
96  ShouldNotCallThis();
97}
98
99inline NativeCall* nativeCall_at(address address) {
100  ShouldNotCallThis();
101}
102
103class NativeMovConstReg : public NativeInstruction {
104 public:
105  address next_instruction_address() const {
106    ShouldNotCallThis();
107  }
108
109  intptr_t data() const {
110    ShouldNotCallThis();
111  }
112
113  void set_data(intptr_t x) {
114    ShouldNotCallThis();
115  }
116};
117
118inline NativeMovConstReg* nativeMovConstReg_at(address address) {
119  ShouldNotCallThis();
120}
121
122class NativeMovRegMem : public NativeInstruction {
123 public:
124  int offset() const {
125    ShouldNotCallThis();
126  }
127
128  void set_offset(intptr_t x) {
129    ShouldNotCallThis();
130  }
131
132  void add_offset_in_bytes(int add_offset) {
133    ShouldNotCallThis();
134  }
135};
136
137inline NativeMovRegMem* nativeMovRegMem_at(address address) {
138  ShouldNotCallThis();
139}
140
141class NativeJump : public NativeInstruction {
142 public:
143  enum zero_specific_constants {
144    instruction_size = 0 // not used within the interpreter
145  };
146
147  address jump_destination() const {
148    ShouldNotCallThis();
149  }
150
151  void set_jump_destination(address dest) {
152    ShouldNotCallThis();
153  }
154
155  static void check_verified_entry_alignment(address entry,
156                                             address verified_entry) {
157  }
158
159  static void patch_verified_entry(address entry,
160                                   address verified_entry,
161                                   address dest);
162};
163
164inline NativeJump* nativeJump_at(address address) {
165  ShouldNotCallThis();
166}
167
168class NativeGeneralJump : public NativeInstruction {
169 public:
170  address jump_destination() const {
171    ShouldNotCallThis();
172  }
173
174  static void insert_unconditional(address code_pos, address entry) {
175    ShouldNotCallThis();
176  }
177
178  static void replace_mt_safe(address instr_addr, address code_buffer) {
179    ShouldNotCallThis();
180  }
181};
182
183inline NativeGeneralJump* nativeGeneralJump_at(address address) {
184  ShouldNotCallThis();
185}
186