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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // modification, are permitted provided that the following conditions are | 3 // found in the LICENSE file. |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | 4 |
28 #ifndef V8_DISASSEMBLER_H_ | 5 #ifndef V8_DISASSEMBLER_H_ |
29 #define V8_DISASSEMBLER_H_ | 6 #define V8_DISASSEMBLER_H_ |
30 | 7 |
| 8 #include <cstdio> |
| 9 |
31 #include "allocation.h" | 10 #include "allocation.h" |
32 | 11 |
33 namespace v8 { | 12 namespace v8 { |
34 namespace internal { | 13 namespace internal { |
35 | 14 |
| 15 // Forward declarations. |
| 16 class Code; |
| 17 class Isolate; |
| 18 |
36 class Disassembler : public AllStatic { | 19 class Disassembler : public AllStatic { |
37 public: | 20 public: |
38 // Print the bytes in the interval [begin, end) into f. | 21 // Print the bytes in the interval [begin, end) into f. |
39 static void Dump(FILE* f, byte* begin, byte* end); | 22 static void Dump(FILE* f, byte* begin, byte* end); |
40 | 23 |
41 // Decode instructions in the the interval [begin, end) and print the | 24 // Decode instructions in the the interval [begin, end) and print the |
42 // code into f. Returns the number of bytes disassembled or 1 if no | 25 // code into f. Returns the number of bytes disassembled or 1 if no |
43 // instruction could be decoded. | 26 // instruction could be decoded. |
44 static int Decode(Isolate* isolate, FILE* f, byte* begin, byte* end); | 27 static int Decode(Isolate* isolate, FILE* f, byte* begin, byte* end); |
45 | 28 |
46 // Decode instructions in code. | 29 // Decode instructions in code. |
47 static void Decode(FILE* f, Code* code); | 30 static void Decode(FILE* f, Code* code); |
48 private: | 31 private: |
49 // Decode instruction at pc and print disassembled instruction into f. | 32 // Decode instruction at pc and print disassembled instruction into f. |
50 // Returns the instruction length in bytes, or 1 if the instruction could | 33 // Returns the instruction length in bytes, or 1 if the instruction could |
51 // not be decoded. The number of characters written is written into | 34 // not be decoded. The number of characters written is written into |
52 // the out parameter char_count. | 35 // the out parameter char_count. |
53 static int Decode(FILE* f, byte* pc, int* char_count); | 36 static int Decode(FILE* f, byte* pc, int* char_count); |
54 }; | 37 }; |
55 | 38 |
56 } } // namespace v8::internal | 39 } } // namespace v8::internal |
57 | 40 |
58 #endif // V8_DISASSEMBLER_H_ | 41 #endif // V8_DISASSEMBLER_H_ |
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