OLD | NEW |
---|---|
1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/wasm/module-decoder.h" | 5 #include "src/wasm/module-decoder.h" |
6 | 6 |
7 #include "src/base/functional.h" | 7 #include "src/base/functional.h" |
8 #include "src/base/platform/platform.h" | 8 #include "src/base/platform/platform.h" |
9 #include "src/flags.h" | 9 #include "src/flags.h" |
10 #include "src/macro-assembler.h" | 10 #include "src/macro-assembler.h" |
(...skipping 1221 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
1232 if (decoder.pc() != table_end) { | 1232 if (decoder.pc() != table_end) { |
1233 decoder.error("broken asm offset table"); | 1233 decoder.error("broken asm offset table"); |
1234 } | 1234 } |
1235 table.push_back(std::move(func_asm_offsets)); | 1235 table.push_back(std::move(func_asm_offsets)); |
1236 } | 1236 } |
1237 if (decoder.more()) decoder.error("unexpected additional bytes"); | 1237 if (decoder.more()) decoder.error("unexpected additional bytes"); |
1238 | 1238 |
1239 return decoder.toResult(std::move(table)); | 1239 return decoder.toResult(std::move(table)); |
1240 } | 1240 } |
1241 | 1241 |
1242 std::vector<CustomSectionOffset> DecodeCustomSections(const byte* start, | |
1243 const byte* end) { | |
1244 Decoder decoder(start, end); | |
1245 decoder.consume_bytes(4, "wasm magic"); | |
1246 decoder.consume_bytes(4, "wasm version"); | |
1247 | |
1248 std::vector<CustomSectionOffset> result; | |
1249 | |
1250 while (decoder.more()) { | |
1251 byte section_code = decoder.consume_u8("section code"); | |
ahaas
2017/01/13 15:01:26
The section code should be a varuint7.
| |
1252 uint32_t section_length = decoder.consume_u32v("section length"); | |
1253 uint32_t section_start = decoder.pc_offset(); | |
1254 if (section_code != 0) { | |
1255 // Skip known sections. | |
1256 decoder.consume_bytes(section_length, "section bytes"); | |
1257 continue; | |
1258 } | |
1259 uint32_t name_length = decoder.consume_u32v("name length"); | |
1260 uint32_t name_offset = decoder.pc_offset(); | |
1261 decoder.consume_bytes(name_length, "section name"); | |
1262 uint32_t payload_offset = decoder.pc_offset(); | |
1263 uint32_t payload_length = section_length - (payload_offset - section_start); | |
1264 decoder.consume_bytes(payload_length); | |
1265 result.push_back({section_start, name_offset, name_length, payload_offset, | |
1266 payload_length, section_length}); | |
1267 } | |
1268 | |
1269 return result; | |
1270 } | |
1271 | |
1242 } // namespace wasm | 1272 } // namespace wasm |
1243 } // namespace internal | 1273 } // namespace internal |
1244 } // namespace v8 | 1274 } // namespace v8 |
OLD | NEW |