diff options
Diffstat (limited to 'llvm/lib/Object/WasmObjectFile.cpp')
-rw-r--r-- | llvm/lib/Object/WasmObjectFile.cpp | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/llvm/lib/Object/WasmObjectFile.cpp b/llvm/lib/Object/WasmObjectFile.cpp index 012c9dc..058686e 100644 --- a/llvm/lib/Object/WasmObjectFile.cpp +++ b/llvm/lib/Object/WasmObjectFile.cpp @@ -168,6 +168,13 @@ static wasm::WasmLimits readLimits(const uint8_t *&Ptr) { return Result; } +static wasm::WasmTable readTable(const uint8_t *&Ptr) { + wasm::WasmTable Table; + Table.ElemType = readVarint7(Ptr); + Table.Limits = readLimits(Ptr); + return Table; +} + static Error readSection(WasmSection &Section, const uint8_t *&Ptr, const uint8_t *Start) { // TODO(sbc): Avoid reading past EOF in the case of malformed files. @@ -397,13 +404,22 @@ Error WasmObjectFile::parseImportSection(const uint8_t *Ptr, const uint8_t *End) Sections.size(), i); break; case wasm::WASM_EXTERNAL_GLOBAL: - Im.GlobalType = readVarint7(Ptr); - Im.GlobalMutable = readVaruint1(Ptr); + Im.Global.Type = readVarint7(Ptr); + Im.Global.Mutable = readVaruint1(Ptr); Symbols.emplace_back(Im.Field, WasmSymbol::SymbolType::GLOBAL_IMPORT, Sections.size(), i); break; + case wasm::WASM_EXTERNAL_MEMORY: + Im.Memory = readLimits(Ptr); + break; + case wasm::WASM_EXTERNAL_TABLE: + Im.Table = readTable(Ptr); + if (Im.Table.ElemType != wasm::WASM_TYPE_ANYFUNC) { + return make_error<GenericBinaryError>("Invalid table element type", + object_error::parse_failed); + } + break; default: - // TODO(sbc): Handle other kinds of imports return make_error<GenericBinaryError>( "Unexpected import kind", object_error::parse_failed); } @@ -431,14 +447,11 @@ Error WasmObjectFile::parseTableSection(const uint8_t *Ptr, const uint8_t *End) uint32_t Count = readVaruint32(Ptr); Tables.reserve(Count); while (Count--) { - wasm::WasmTable Table; - Table.ElemType = readVarint7(Ptr); - if (Table.ElemType != wasm::WASM_TYPE_ANYFUNC) { + Tables.push_back(readTable(Ptr)); + if (Tables.back().ElemType != wasm::WASM_TYPE_ANYFUNC) { return make_error<GenericBinaryError>("Invalid table element type", object_error::parse_failed); } - Table.Limits = readLimits(Ptr); - Tables.push_back(Table); } if (Ptr != End) return make_error<GenericBinaryError>("Table section ended prematurely", @@ -493,8 +506,10 @@ Error WasmObjectFile::parseExportSection(const uint8_t *Ptr, const uint8_t *End) Symbols.emplace_back(Ex.Name, WasmSymbol::SymbolType::GLOBAL_EXPORT, Sections.size(), i); break; + case wasm::WASM_EXTERNAL_MEMORY: + case wasm::WASM_EXTERNAL_TABLE: + break; default: - // TODO(sbc): Handle other kinds of exports return make_error<GenericBinaryError>( "Unexpected export kind", object_error::parse_failed); } @@ -638,10 +653,14 @@ basic_symbol_iterator WasmObjectFile::symbol_end() const { return BasicSymbolRef(Ref, this); } -const WasmSymbol &WasmObjectFile::getWasmSymbol(DataRefImpl Symb) const { +const WasmSymbol &WasmObjectFile::getWasmSymbol(const DataRefImpl &Symb) const { return Symbols[Symb.d.a]; } +const WasmSymbol &WasmObjectFile::getWasmSymbol(const SymbolRef &Symb) const { + return getWasmSymbol(Symb.getRawDataRefImpl()); +} + Expected<StringRef> WasmObjectFile::getSymbolName(DataRefImpl Symb) const { const WasmSymbol &Sym = getWasmSymbol(Symb); return Sym.Name; |