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Issue 8758005: Disassembler for x64. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: '' Created 9 years ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "vm/disassembler.h" 5 #include "vm/disassembler.h"
6 6
7 #include "vm/assembler.h" 7 #include "vm/assembler.h"
8 #include "vm/globals.h" 8 #include "vm/globals.h"
9 #include "vm/os.h" 9 #include "vm/os.h"
10 10
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22 if (hex_length < kHexColumnWidth) { 22 if (hex_length < kHexColumnWidth) {
23 for (int i = kHexColumnWidth - hex_length; i > 0; i--) { 23 for (int i = kHexColumnWidth - hex_length; i > 0; i--) {
24 OS::Print(" "); 24 OS::Print(" ");
25 } 25 }
26 } 26 }
27 OS::Print("%s", human_buffer); 27 OS::Print("%s", human_buffer);
28 OS::Print("\n"); 28 OS::Print("\n");
29 } 29 }
30 30
31 31
32 void Disassembler::Disassemble(uword start, 32 void DisassembleToStdout::Print(const char* format, ...) {
33 uword end, 33 va_list args;
34 DisassemblyFormatter* formatter) { 34 va_start(args, format);
35 ASSERT(formatter != NULL); 35 OS::VFPrint(stdout, format, args);
36 char hex_buffer[kHexadecimalBufferSize]; // Instruction in hexadecimal form. 36 va_end(args);
37 char human_buffer[kUserReadableBufferSize]; // Human-readable instruction.
38 uword pc = start;
39 while (pc < end) {
40 int instruction_length = DecodeInstruction(hex_buffer,
41 sizeof(hex_buffer),
42 human_buffer,
43 sizeof(human_buffer),
44 pc);
45 formatter->ConsumeInstruction(hex_buffer,
46 sizeof(hex_buffer),
47 human_buffer,
48 sizeof(human_buffer),
49 pc);
50 pc += instruction_length;
51 }
52 }
53
54
55 void Disassembler::DisassembleMemoryRegionRange(
56 const MemoryRegion& instructions,
57 uword from,
58 uword to,
59 DisassemblyFormatter *formatter) {
60 ASSERT(formatter != NULL);
61 char hex_buffer[kHexadecimalBufferSize]; // Instruction in hexadecimal form.
62 char human_buffer[kUserReadableBufferSize]; // Human-readable instruction.
63 uword start = instructions.start();
64 uword end = instructions.end();
65 ASSERT((from >= start) && (to <= end) && (from <= to));
66 uword pc = start;
67 uword stop = Utils::Minimum(end, to);
68 while (pc < stop) {
69 int instruction_length = DecodeInstruction(hex_buffer,
70 sizeof(hex_buffer),
71 human_buffer,
72 sizeof(human_buffer),
73 pc);
74 if (pc >= from) {
75 formatter->ConsumeInstruction(hex_buffer,
76 sizeof(hex_buffer),
77 human_buffer,
78 sizeof(human_buffer),
79 pc);
80 }
81 pc += instruction_length;
82 }
83 } 37 }
84 38
85 } // namespace dart 39 } // namespace dart
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