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| 1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, 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/globals.h" // Needed here to get TARGET_ARCH_DBC. | 7 #include "vm/globals.h" // Needed here to get TARGET_ARCH_DBC. |
| 8 #if defined(TARGET_ARCH_DBC) | 8 #if defined(TARGET_ARCH_DBC) |
| 9 | 9 |
| 10 #include "platform/assert.h" | 10 #include "platform/assert.h" |
| (...skipping 11 matching lines...) Expand all Loading... |
| 22 | 22 |
| 23 static const size_t kOpcodeCount = | 23 static const size_t kOpcodeCount = |
| 24 sizeof(kOpcodeNames) / sizeof(kOpcodeNames[0]); | 24 sizeof(kOpcodeNames) / sizeof(kOpcodeNames[0]); |
| 25 | 25 |
| 26 typedef void (*BytecodeFormatter)(char* buffer, | 26 typedef void (*BytecodeFormatter)(char* buffer, |
| 27 intptr_t size, | 27 intptr_t size, |
| 28 uword pc, | 28 uword pc, |
| 29 uint32_t bc); | 29 uint32_t bc); |
| 30 typedef void (*Fmt)(char** buf, intptr_t* size, uword pc, int32_t value); | 30 typedef void (*Fmt)(char** buf, intptr_t* size, uword pc, int32_t value); |
| 31 | 31 |
| 32 | |
| 33 template <typename ValueType> | 32 template <typename ValueType> |
| 34 void FormatOperand(char** buf, | 33 void FormatOperand(char** buf, |
| 35 intptr_t* size, | 34 intptr_t* size, |
| 36 const char* fmt, | 35 const char* fmt, |
| 37 ValueType value) { | 36 ValueType value) { |
| 38 intptr_t written = OS::SNPrint(*buf, *size, fmt, value); | 37 intptr_t written = OS::SNPrint(*buf, *size, fmt, value); |
| 39 if (written < *size) { | 38 if (written < *size) { |
| 40 *buf += written; | 39 *buf += written; |
| 41 *size += written; | 40 *size += written; |
| 42 } else { | 41 } else { |
| 43 *size = -1; | 42 *size = -1; |
| 44 } | 43 } |
| 45 } | 44 } |
| 46 | 45 |
| 47 | |
| 48 static void Fmt___(char** buf, intptr_t* size, uword pc, int32_t value) {} | 46 static void Fmt___(char** buf, intptr_t* size, uword pc, int32_t value) {} |
| 49 | 47 |
| 50 | |
| 51 static void Fmttgt(char** buf, intptr_t* size, uword pc, int32_t value) { | 48 static void Fmttgt(char** buf, intptr_t* size, uword pc, int32_t value) { |
| 52 FormatOperand(buf, size, "-> %" Px, pc + (value << 2)); | 49 FormatOperand(buf, size, "-> %" Px, pc + (value << 2)); |
| 53 } | 50 } |
| 54 | 51 |
| 55 | |
| 56 static void Fmtlit(char** buf, intptr_t* size, uword pc, int32_t value) { | 52 static void Fmtlit(char** buf, intptr_t* size, uword pc, int32_t value) { |
| 57 FormatOperand(buf, size, "k%d", value); | 53 FormatOperand(buf, size, "k%d", value); |
| 58 } | 54 } |
| 59 | 55 |
| 60 | |
| 61 static void Fmtreg(char** buf, intptr_t* size, uword pc, int32_t value) { | 56 static void Fmtreg(char** buf, intptr_t* size, uword pc, int32_t value) { |
| 62 FormatOperand(buf, size, "r%d", value); | 57 FormatOperand(buf, size, "r%d", value); |
| 63 } | 58 } |
| 64 | 59 |
| 65 | |
| 66 static void Fmtxeg(char** buf, intptr_t* size, uword pc, int32_t value) { | 60 static void Fmtxeg(char** buf, intptr_t* size, uword pc, int32_t value) { |
| 67 if (value < 0) { | 61 if (value < 0) { |
| 68 FormatOperand(buf, size, "FP[%d]", value); | 62 FormatOperand(buf, size, "FP[%d]", value); |
| 69 } else { | 63 } else { |
| 70 Fmtreg(buf, size, pc, value); | 64 Fmtreg(buf, size, pc, value); |
| 71 } | 65 } |
| 72 } | 66 } |
| 73 | 67 |
| 74 | |
| 75 static void Fmtnum(char** buf, intptr_t* size, uword pc, int32_t value) { | 68 static void Fmtnum(char** buf, intptr_t* size, uword pc, int32_t value) { |
| 76 FormatOperand(buf, size, "#%d", value); | 69 FormatOperand(buf, size, "#%d", value); |
| 77 } | 70 } |
| 78 | 71 |
| 79 | |
| 80 static void Apply(char** buf, | 72 static void Apply(char** buf, |
| 81 intptr_t* size, | 73 intptr_t* size, |
| 82 uword pc, | 74 uword pc, |
| 83 Fmt fmt, | 75 Fmt fmt, |
| 84 int32_t value, | 76 int32_t value, |
| 85 const char* suffix) { | 77 const char* suffix) { |
| 86 if (*size <= 0) { | 78 if (*size <= 0) { |
| 87 return; | 79 return; |
| 88 } | 80 } |
| 89 | 81 |
| 90 fmt(buf, size, pc, value); | 82 fmt(buf, size, pc, value); |
| 91 if (*size > 0) { | 83 if (*size > 0) { |
| 92 FormatOperand(buf, size, "%s", suffix); | 84 FormatOperand(buf, size, "%s", suffix); |
| 93 } | 85 } |
| 94 } | 86 } |
| 95 | 87 |
| 96 | |
| 97 static void Format0(char* buf, | 88 static void Format0(char* buf, |
| 98 intptr_t size, | 89 intptr_t size, |
| 99 uword pc, | 90 uword pc, |
| 100 uint32_t op, | 91 uint32_t op, |
| 101 Fmt op1, | 92 Fmt op1, |
| 102 Fmt op2, | 93 Fmt op2, |
| 103 Fmt op3) {} | 94 Fmt op3) {} |
| 104 | 95 |
| 105 | |
| 106 static void FormatT(char* buf, | 96 static void FormatT(char* buf, |
| 107 intptr_t size, | 97 intptr_t size, |
| 108 uword pc, | 98 uword pc, |
| 109 uint32_t op, | 99 uint32_t op, |
| 110 Fmt op1, | 100 Fmt op1, |
| 111 Fmt op2, | 101 Fmt op2, |
| 112 Fmt op3) { | 102 Fmt op3) { |
| 113 const int32_t x = static_cast<int32_t>(op) >> 8; | 103 const int32_t x = static_cast<int32_t>(op) >> 8; |
| 114 Apply(&buf, &size, pc, op1, x, ""); | 104 Apply(&buf, &size, pc, op1, x, ""); |
| 115 } | 105 } |
| 116 | 106 |
| 117 | |
| 118 static void FormatA(char* buf, | 107 static void FormatA(char* buf, |
| 119 intptr_t size, | 108 intptr_t size, |
| 120 uword pc, | 109 uword pc, |
| 121 uint32_t op, | 110 uint32_t op, |
| 122 Fmt op1, | 111 Fmt op1, |
| 123 Fmt op2, | 112 Fmt op2, |
| 124 Fmt op3) { | 113 Fmt op3) { |
| 125 const int32_t a = (op & 0xFF00) >> 8; | 114 const int32_t a = (op & 0xFF00) >> 8; |
| 126 Apply(&buf, &size, pc, op1, a, ""); | 115 Apply(&buf, &size, pc, op1, a, ""); |
| 127 } | 116 } |
| 128 | 117 |
| 129 | |
| 130 static void FormatA_D(char* buf, | 118 static void FormatA_D(char* buf, |
| 131 intptr_t size, | 119 intptr_t size, |
| 132 uword pc, | 120 uword pc, |
| 133 uint32_t op, | 121 uint32_t op, |
| 134 Fmt op1, | 122 Fmt op1, |
| 135 Fmt op2, | 123 Fmt op2, |
| 136 Fmt op3) { | 124 Fmt op3) { |
| 137 const int32_t a = (op & 0xFF00) >> 8; | 125 const int32_t a = (op & 0xFF00) >> 8; |
| 138 const int32_t bc = op >> 16; | 126 const int32_t bc = op >> 16; |
| 139 Apply(&buf, &size, pc, op1, a, ", "); | 127 Apply(&buf, &size, pc, op1, a, ", "); |
| 140 Apply(&buf, &size, pc, op2, bc, ""); | 128 Apply(&buf, &size, pc, op2, bc, ""); |
| 141 } | 129 } |
| 142 | 130 |
| 143 | |
| 144 static void FormatA_X(char* buf, | 131 static void FormatA_X(char* buf, |
| 145 intptr_t size, | 132 intptr_t size, |
| 146 uword pc, | 133 uword pc, |
| 147 uint32_t op, | 134 uint32_t op, |
| 148 Fmt op1, | 135 Fmt op1, |
| 149 Fmt op2, | 136 Fmt op2, |
| 150 Fmt op3) { | 137 Fmt op3) { |
| 151 const int32_t a = (op & 0xFF00) >> 8; | 138 const int32_t a = (op & 0xFF00) >> 8; |
| 152 const int32_t bc = static_cast<int32_t>(op) >> 16; | 139 const int32_t bc = static_cast<int32_t>(op) >> 16; |
| 153 Apply(&buf, &size, pc, op1, a, ", "); | 140 Apply(&buf, &size, pc, op1, a, ", "); |
| 154 Apply(&buf, &size, pc, op2, bc, ""); | 141 Apply(&buf, &size, pc, op2, bc, ""); |
| 155 } | 142 } |
| 156 | 143 |
| 157 | |
| 158 static void FormatX(char* buf, | 144 static void FormatX(char* buf, |
| 159 intptr_t size, | 145 intptr_t size, |
| 160 uword pc, | 146 uword pc, |
| 161 uint32_t op, | 147 uint32_t op, |
| 162 Fmt op1, | 148 Fmt op1, |
| 163 Fmt op2, | 149 Fmt op2, |
| 164 Fmt op3) { | 150 Fmt op3) { |
| 165 const int32_t bc = static_cast<int32_t>(op) >> 16; | 151 const int32_t bc = static_cast<int32_t>(op) >> 16; |
| 166 Apply(&buf, &size, pc, op1, bc, ""); | 152 Apply(&buf, &size, pc, op1, bc, ""); |
| 167 } | 153 } |
| 168 | 154 |
| 169 | |
| 170 static void FormatD(char* buf, | 155 static void FormatD(char* buf, |
| 171 intptr_t size, | 156 intptr_t size, |
| 172 uword pc, | 157 uword pc, |
| 173 uint32_t op, | 158 uint32_t op, |
| 174 Fmt op1, | 159 Fmt op1, |
| 175 Fmt op2, | 160 Fmt op2, |
| 176 Fmt op3) { | 161 Fmt op3) { |
| 177 const int32_t bc = op >> 16; | 162 const int32_t bc = op >> 16; |
| 178 Apply(&buf, &size, pc, op1, bc, ""); | 163 Apply(&buf, &size, pc, op1, bc, ""); |
| 179 } | 164 } |
| 180 | 165 |
| 181 | |
| 182 static void FormatA_B_C(char* buf, | 166 static void FormatA_B_C(char* buf, |
| 183 intptr_t size, | 167 intptr_t size, |
| 184 uword pc, | 168 uword pc, |
| 185 uint32_t op, | 169 uint32_t op, |
| 186 Fmt op1, | 170 Fmt op1, |
| 187 Fmt op2, | 171 Fmt op2, |
| 188 Fmt op3) { | 172 Fmt op3) { |
| 189 const int32_t a = (op >> 8) & 0xFF; | 173 const int32_t a = (op >> 8) & 0xFF; |
| 190 const int32_t b = (op >> 16) & 0xFF; | 174 const int32_t b = (op >> 16) & 0xFF; |
| 191 const int32_t c = (op >> 24) & 0xFF; | 175 const int32_t c = (op >> 24) & 0xFF; |
| 192 Apply(&buf, &size, pc, op1, a, ", "); | 176 Apply(&buf, &size, pc, op1, a, ", "); |
| 193 Apply(&buf, &size, pc, op2, b, ", "); | 177 Apply(&buf, &size, pc, op2, b, ", "); |
| 194 Apply(&buf, &size, pc, op3, c, ""); | 178 Apply(&buf, &size, pc, op3, c, ""); |
| 195 } | 179 } |
| 196 | 180 |
| 197 | |
| 198 #define BYTECODE_FORMATTER(name, encoding, op1, op2, op3) \ | 181 #define BYTECODE_FORMATTER(name, encoding, op1, op2, op3) \ |
| 199 static void Format##name(char* buf, intptr_t size, uword pc, uint32_t op) { \ | 182 static void Format##name(char* buf, intptr_t size, uword pc, uint32_t op) { \ |
| 200 Format##encoding(buf, size, pc, op, Fmt##op1, Fmt##op2, Fmt##op3); \ | 183 Format##encoding(buf, size, pc, op, Fmt##op1, Fmt##op2, Fmt##op3); \ |
| 201 } | 184 } |
| 202 BYTECODES_LIST(BYTECODE_FORMATTER) | 185 BYTECODES_LIST(BYTECODE_FORMATTER) |
| 203 #undef BYTECODE_FORMATTER | 186 #undef BYTECODE_FORMATTER |
| 204 | 187 |
| 205 | |
| 206 static const BytecodeFormatter kFormatters[] = { | 188 static const BytecodeFormatter kFormatters[] = { |
| 207 #define BYTECODE_FORMATTER(name, encoding, op1, op2, op3) &Format##name, | 189 #define BYTECODE_FORMATTER(name, encoding, op1, op2, op3) &Format##name, |
| 208 BYTECODES_LIST(BYTECODE_FORMATTER) | 190 BYTECODES_LIST(BYTECODE_FORMATTER) |
| 209 #undef BYTECODE_FORMATTER | 191 #undef BYTECODE_FORMATTER |
| 210 }; | 192 }; |
| 211 | 193 |
| 212 | |
| 213 void Disassembler::DecodeInstruction(char* hex_buffer, | 194 void Disassembler::DecodeInstruction(char* hex_buffer, |
| 214 intptr_t hex_size, | 195 intptr_t hex_size, |
| 215 char* human_buffer, | 196 char* human_buffer, |
| 216 intptr_t human_size, | 197 intptr_t human_size, |
| 217 int* out_instr_size, | 198 int* out_instr_size, |
| 218 const Code& code, | 199 const Code& code, |
| 219 Object** object, | 200 Object** object, |
| 220 uword pc) { | 201 uword pc) { |
| 221 const uint32_t instr = *reinterpret_cast<uint32_t*>(pc); | 202 const uint32_t instr = *reinterpret_cast<uint32_t*>(pc); |
| 222 const uint8_t opcode = instr & 0xFF; | 203 const uint8_t opcode = instr & 0xFF; |
| (...skipping 12 matching lines...) Expand all Loading... |
| 235 | 216 |
| 236 *object = NULL; | 217 *object = NULL; |
| 237 if (!code.IsNull()) { | 218 if (!code.IsNull()) { |
| 238 *object = &Object::Handle(); | 219 *object = &Object::Handle(); |
| 239 if (!DecodeLoadObjectFromPoolOrThread(pc, code, *object)) { | 220 if (!DecodeLoadObjectFromPoolOrThread(pc, code, *object)) { |
| 240 *object = NULL; | 221 *object = NULL; |
| 241 } | 222 } |
| 242 } | 223 } |
| 243 } | 224 } |
| 244 | 225 |
| 245 | |
| 246 } // namespace dart | 226 } // namespace dart |
| 247 | 227 |
| 248 #endif // defined TARGET_ARCH_DBC | 228 #endif // defined TARGET_ARCH_DBC |
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