Method loadModuleAOT

lib/loader/ast/module.cpp:239–324

}

Expect<void> Loader::loadModuleAOT(AST::AOTSection &AOTSection) {
  // Find and read the AOT custom section first. Jump over the others.
  // This loop checks whether the input is a universal WASM.
  // Therefore, if the configuration is set to force interpreter mode, skip
  // this.
  while (WASMType != InputType::SharedLibrary) {
    // This loop only scans custom sections and reads the AOT section.
    // For other general errors, break and handle them in the sequential
    // parsing below.
    uint8_t NewSectionId = 0x00;
    if (auto Res = FMgr.readByte()) {
      NewSectionId = *Res;
    } else {
      break;
    }

    if (NewSectionId == 0x00U) {
      // Load the section size.
      uint32_t ContentSize = 0;
      if (auto Res = FMgr.readU32()) {
        ContentSize = *Res;
      } else {
        break;
      }
      if (ContentSize > FMgr.getRemainSize()) {
        break;
      }

      // Load the section name.
      auto StartOffset = FMgr.getOffset();
      std::string Name;
      if (auto Res = FMgr.readName()) {
        // The UTF-8 failure case will be ignored here.
        Name = std::move(*Res);
      }

      auto ReadSize = FMgr.getOffset() - StartOffset;
      if (ContentSize < ReadSize) {
        // Syntax error caused by overread. Jump to the next section.
        FMgr.seek(StartOffset + ContentSize);
        continue;
      }

      if (Name == "wasmedge") {
        // Found the AOT section in universal WASM. Load the AOT code.
        // Read the content.
        std::vector<uint8_t> Content;
        if (auto Res = FMgr.readBytes(ContentSize - ReadSize)) {
          Content = std::move(*Res);
        } else {
          break;
        }

        // Load the AOT section.
        FileMgr VecMgr;
        AST::AOTSection NewAOTSection;
        VecMgr.setCode(Content);
        if (auto Res = loadSection(VecMgr, NewAOTSection)) {