diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/MC/WasmObjectWriter.cpp | 3 | ||||
| -rw-r--r-- | llvm/lib/Object/WasmObjectFile.cpp | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/MC/WasmObjectWriter.cpp b/llvm/lib/MC/WasmObjectWriter.cpp index 87ef0d927ee..a05948e2946 100644 --- a/llvm/lib/MC/WasmObjectWriter.cpp +++ b/llvm/lib/MC/WasmObjectWriter.cpp @@ -1024,6 +1024,9 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm, Imports.push_back(Import); WasmIndices[&WS] = NumFunctionImports++; } else if (WS.isGlobal()) { + if (WS.isWeak()) + report_fatal_error("undefined global symbol cannot be weak"); + wasm::WasmImport Import; Import.Module = WS.getModuleName(); Import.Field = WS.getName(); diff --git a/llvm/lib/Object/WasmObjectFile.cpp b/llvm/lib/Object/WasmObjectFile.cpp index 3b18e194d02..65ae0639d4f 100644 --- a/llvm/lib/Object/WasmObjectFile.cpp +++ b/llvm/lib/Object/WasmObjectFile.cpp @@ -422,6 +422,11 @@ Error WasmObjectFile::parseLinkingSectionSymtab(const uint8_t *&Ptr, IsDefined != isDefinedGlobalIndex(Info.ElementIndex)) return make_error<GenericBinaryError>("invalid global symbol index", object_error::parse_failed); + if (!IsDefined && + (Info.Flags & wasm::WASM_SYMBOL_BINDING_MASK) == + wasm::WASM_SYMBOL_BINDING_WEAK) + return make_error<GenericBinaryError>("undefined weak global symbol", + object_error::parse_failed); if (IsDefined) { Info.Name = readString(Ptr); unsigned GlobalIndex = Info.ElementIndex - NumImportedGlobals; |
