WasmEdge/WasmEdge 0.6.0

SSVM 0.6.0

on GitHub

0.6.0 (2020-06-08)

Features:

• Building System
  • Add cmake option SSVM_DISABLE_AOT_RUNTIME to disable building ahead of time compilation mode.
• Wasm AST
  • Add support of multiple partition of sections in wasm module.
• AOT
  • Add SSVM-AOT tools.

Tools:

• SSVM-AOT
  • Enable to compile and run separatedly.
  • Enable to run compiled module and normal module with interpreter.

Refactor:

• Internal tuple span mechanism
  • Apply C++20 span features in host functions.
• Internal error handling mechanism
  • Apply non-exception version of expected.
• Refine cmake files
  • Update file copying macro in CMakeFile to support resursively copying.
  • Refine include paths and dependencies in every static libraries.
  • Modularize static libraries to be included as submodules easier.
• Interpreter
  • Use function address in Store for invoking instead of exported function name.
  • Support invokation of a host function.
• Host functions
  • Return Expect instead of ErrCode in host functions.
  • Return function return values in Expect class rather than in function parameter.
• New VM APIs
  • Add routine to invoke a function of registered and named module in Store.
  • Removed old executor and use interpreter instead.
  • Renamed ExpVM to VM and removed the old one.
  • Apply new VM to all tools.
• AOT
  • Integrated into new VM API and HostFunctions
  • Generate minimum machine code for nearestint instructions.

Fixed Issues:

• Loader
  • Add checking Wasm header and version when loading.
• Validation
  • Fix export section checking to support "" function name.
  • Fix type transforming when function invokation and returning.
• Runtime Data Structure
  • Fix wrong table resizing when initialization in table instance.
• Interpreter
  • Instantiation
    • Fix instantiation steps of data and element sections.
    • Check memory and table instances boundary according to Wasm spec.
    • Not to replace data in memory and table instances until all checkings were done.
  • Engine
    • Fix wrong arity assignment in loop instruction.
    • Fix wrong answer issue in trunc and clz instructions.
    • Fix logic of div instruction in both integer and floating point inputs.
    • Fix wrong handling of NaN oprend in min and max instructions.
    • Add dummy frame before function invokation according to Wasm spec.
    • Add memory boundary checking when loading value in memory instructions.
• AOT
  • Fix wrong handling of minimum oprend in mod instructions.
  • Fix wrong handling of NaN oprend in min and max instructions.

Tests:

• Remove ssvm-evmc tests.
• (Experimental) Add unit tests for C++ span feature.

Deprecated:

• SSVM-Proxy is removed.
• SSVM-EVMC is removed.
  • SSVM-EVMC is separated from this project as an independent repository.