Changelog.md

0.10.0-alpha.2 (2022-05-20)

Breaking changes:

• WasmEdge C API changes.
  • Merged the WasmEdge_ImportObjectContext into the WasmEdge_ModuleInstanceContext.
    • WasmEdge_ImportObjectCreate() is changed to WasmEdge_ModuleInstanceCreate().
    • WasmEdge_ImportObjectDelete() is changed to WasmEdge_ModuleInstanceDelete().
    • WasmEdge_ImportObjectAddFunction() is changed to WasmEdge_ModuleInstanceAddFunction().
    • WasmEdge_ImportObjectAddTable() is changed to WasmEdge_ModuleInstanceAddTable().
    • WasmEdge_ImportObjectAddMemory() is changed to WasmEdge_ModuleInstanceAddMemory().
    • WasmEdge_ImportObjectAddGlobal() is changed to WasmEdge_ModuleInstanceAddGlobal().
    • WasmEdge_ImportObjectCreateWASI() is changed to WasmEdge_ModuleInstanceCreateWASI().
    • WasmEdge_ImportObjectCreateWasmEdgeProcess() is changed to WasmEdge_ModuleInstanceCreateWasmEdgeProcess().
    • WasmEdge_ImportObjectInitWASI() is changed to WasmEdge_ModuleInstanceInitWASI().
    • WasmEdge_ImportObjectInitWasmEdgeProcess() is changed to WasmEdge_ModuleInstanceInitWasmEdgeProcess().
  • Used the pointer to WasmEdge_FunctionInstanceContext instead of the index in the FuncRef value type.
    • WasmEdge_ValueGenFuncRef() is changed to use the const WasmEdge_FunctionInstanceContext * as it's argument.
    • WasmEdge_ValueGetFuncRef() is changed to return the const WasmEdge_FunctionInstanceContext *.
  • Moved the functions of WasmEdge_StoreContext to the WasmEdge_ModuleInstanceContext.
    • WasmEdge_StoreListFunctionLength() and WasmEdge_StoreListFunctionRegisteredLength() is replaced by WasmEdge_ModuleInstanceListFunctionLength().
    • WasmEdge_StoreListTableLength() and WasmEdge_StoreListTableRegisteredLength() is replaced by WasmEdge_ModuleInstanceListTableLength().
    • WasmEdge_StoreListMemoryLength() and WasmEdge_StoreListMemoryRegisteredLength() is replaced by WasmEdge_ModuleInstanceListMemoryLength().
    • WasmEdge_StoreListGlobalLength() and WasmEdge_StoreListGlobalRegisteredLength() is replaced by WasmEdge_ModuleInstanceListGlobalLength().
    • WasmEdge_StoreListFunction() and WasmEdge_StoreListFunctionRegistered() is replaced by WasmEdge_ModuleInstanceListFunction().
    • WasmEdge_StoreListTable() and WasmEdge_StoreListTableRegistered() is replaced by WasmEdge_ModuleInstanceListTable().
    • WasmEdge_StoreListMemory() and WasmEdge_StoreListMemoryRegistered() is replaced by WasmEdge_ModuleInstanceListMemory().
    • WasmEdge_StoreListGlobal() and WasmEdge_StoreListGlobalRegistered() is replaced by WasmEdge_ModuleInstanceListGlobal().
    • WasmEdge_StoreFindFunction() and WasmEdge_StoreFindFunctionRegistered() is replaced by WasmEdge_ModuleInstanceFindFunction().
    • WasmEdge_StoreFindTable() and WasmEdge_StoreFindTableRegistered() is replaced by WasmEdge_ModuleInstanceFindTable().
    • WasmEdge_StoreFindMemory() and WasmEdge_StoreFindMemoryRegistered() is replaced by WasmEdge_ModuleInstanceFindMemory().
    • WasmEdge_StoreFindGlobal() and WasmEdge_StoreFindGlobalRegistered() is replaced by WasmEdge_ModuleInstanceFindGlobal().
  • Updated the WasmEdge_VMContext APIs.
    • Added the WasmEdge_VMGetActiveModule().
    • WasmEdge_VMGetImportModuleContext() is changed to return the WasmEdge_FunctionInstanceContext *.
    • WasmEdge_VMRegisterModuleFromImport() is changed to use the const WasmEdge_ModuleInstanceContext * as it's argument.
  • For upgrading from 0.9.1 to 0.10.0, please refer to the document.

Features:

• Supported the WASM tail-call proposal.
  • Added the WasmEdge_Proposal_TailCall for the configuration in WasmEdge C API.
  • Users can use the --enable-tail-call to enable the proposal in wasmedge and wasmedgec tools.
• Supported the WASM extended-const proposal.
  • Added the WasmEdge_Proposal_ExtendedConst for the configuration in WasmEdge C API.
  • Users can use the --enable-extended-const to enable the proposal in wasmedge and wasmedgec tools.
• Supported thread-safe in WasmEdge_VMContext, WasmEdge_ConfigureContext, WasmEdge_ModuleInstanceContext, and WasmEdge_StoreContext APIs.
• Supported the gas limit in AOT mode.
• New supporting of the wasi-socket proposal.
  • Supported send_to.
  • Supported resv_from.
• Plugin support
  • Add loadable plugin support.
  • Move wasmedge_process to a loadable plugin.

Fixed issues:

• Fixed wasi-socket proposal issues.
  • Fixed wasi-socket on MacOS.
  • Fixed error when calling poll_oneoff with the same fd twice.
  • Fixed error when calling fd_close on socket.
  • Forged zero-terminated string for ::getaddrinfo.
  • Checked the socket options enumeration for valid value.
• Fixed the statistics enable/disable routine.
• Fixed the output format by the file extension name detection on multiple platforms.

Known issues:

• Universal WASM format failed on MacOS platforms.
  • In current status, the universal WASM format output of the AOT compiler on MacOS platforms will cause bus error when execution.
  • We are trying to fix this issue. For working around, please use the shared library format output of the AOT mode.
  • Developers can specify the extension name as .dylib on MacOS, .so on Linux, and .dll on Windows for the shared library format output of the AOT compiler.

Refactor:

• Supported multi-thread execution.
  • Changed the StackManager in Executor as thread local to support the multi-thread.
  • Used atomic operations for cost measuring.
  • Supported multi-thread timer.
• Refactored the enumerations.
  • Replaced the std::unordered_map of the enumeration strings with DenseMap and SpareMap.
  • Merged the both C and C++ enumeration definitions into the enum.inc file.
  • Updated the ErrCode enumeration for the newest spec tests.
• Refactored the code architecture for supporting tail-call proposal.
  • Split the call_indirect execution routine in compiler into AOT and interpreter path.
  • Updated the pop frame mechanism in the StackManager.
  • Updated the enter function mechanism.
• Refined the file manager in Loader.
  • Supported the offset seeking in file and buffer.
  • Skipped the instructions parsing in AOT mode for better loading performance.
• Refined the branch mechanism in the StackManager for better performance in the interpreter mode.
  • Pre-calculated the stack offset for branch in the validation phase.
  • Removed the label stack in the StackManager and used the pre-calculated data for branch.
  • Removed the dummy frame mechanism in the StackManager.
• Supplied the pointer-based retrieving mechanism in the StoreManager and ModuleInstance.
  • Removed the address mechanism for instances in the StoreManager.
  • Added the unsafe getter functions for the instances.
• Refactored the StoreManager, ModuleInstance, and Executor.
  • Used the ModuleInstance-based resource management instead of StoreManager-based.
  • Moved the ownership of instances from the StoreManager into the ModuleInstance.
  • Merged the ImportObject into the ModuleInstance.
  • Invoking functions by FunctionInstance rather than the function name in Executor.

Documentations:

• Updated the WasmEdge C API documentation for the breaking change.
  • For upgrading from 0.9.1 to 0.10.0, please refer to the document.
  • For the old API of 0.9.1, please refer to the document.
• Updated the WasmEdge GO documentation for the breaking change.
  • For upgrading from v0.9.2 to v0.10.0, please refer to the document.
  • For the old API of v0.9.2, please refer to the document.

Tests:

• Updated the spec tests to the date 20220504.
• Added the spec tests for the tail-call proposal.
• Added the mixed invocation tests between interpreter mode and AOT mode WASM functions.
• Added the thread-safe and multi-thread execution tests.
• Added wasi-socket tests for poll_oneoff, send_to, and recv_from.

Thank all the contributors that made this release possible!

朱亚光, Abhinandan Udupa, Ang Lee, Binbin Zhang, Chin Zhi Wei, DarumaDocker, Elon Cheng, FlyingOnion, Hanged Fish, Herschel Wang, JIAN ZHONG, JcJinChen, Jeremy, JessesChou, JieDing, Kodalien, Kunshuai Zhu, LFsWang, LaingKe, Michael Yuan, Nicholas Zhan, 华德禹, O3Ol, Rui Li, Shen-Ta Hsieh, Shreyas Atre, Sylveon, TheLightRunner, Vaniot, Vinson, 罗泽轩, Xin Liu, Yi Huang, YiYing He, YoungLH, abhinandanudupa, border1px, eat4toast, hydai, jerbmarx, luckyJ-nj, meoww-bot, mydreamer4134, situ2001, tpmccallum, treeplus, wangyuan249, 王琦

If you want to build from source, please use WasmEdge-0.10.0-alpha.1-src.tar.gz instead of the zip or tarball provided by GitHub directly.

0.9.1 (2022-02-10)

Features:

• WASI
  • Added the sock_getsockopt, sock_setsockopt, sock_getlocaladdr, sock_getpeeraddr, and sock_getaddrinfo host functions for the WASI socket proposal.
• Supported the interruptible execution.
  • Added the WasmEdge_Async struct in WasmEdge C API for the asynchronous execution.
    • Added the WasmEdge_AsyncWait API for waiting an asynchronous execution.
    • Added the WasmEdge_AsyncWaitFor API for waiting an asynchronous execution with timeout.
    • Added the WasmEdge_AsyncCancel API for canceling an asynchronous execution.
    • Added the WasmEdge_AsyncGetReturnsLength API for waiting and getting the return value length of asynchronous execution.
    • Added the WasmEdge_AsyncGet API for waiting and getting the asynchronous execution results.
    • Added the WasmEdge_AsyncDelete API for destroying the WasmEdge_Async object.
  • Added the asynchronous mode execution APIs.
    • Added the WasmEdge_VMAsyncRunWasmFromFile API for executing WASM from a file asynchronously.
    • Added the WasmEdge_VMAsyncRunWasmFromBuffer API for executing WASM from a buffer asynchronously.
    • Added the WasmEdge_VMAsyncRunWasmFromASTModule API for executing WASM from an WasmEdge_ASTModuleContext asynchronously.
    • Added the WasmEdge_VMAsyncExecute API for invoking a WASM function asynchronously.
    • Added the WasmEdge_VMAsyncExecuteRegistered API for invoking a registered WASM function asynchronously.
  • Added the option for timeout settings of the AOT compiler.
    • Added the WasmEdge_ConfigureCompilerSetInterruptible API for setting the interruptibility of the AOT compiler.
    • Added the WasmEdge_ConfigureCompilerIsInterruptible API for getting the interruptibility of the AOT compiler.
• Supported the WASM multi-memories proposal.
  • Added the WasmEdge_Proposal_MultiMemories for the configuration in WasmEdge C API.
  • Users can use the --enable-multi-memory to enable the proposal in wasmedge and wasmedgec tools.
• Enabled the gas limitation of the wasmedge CLI.
  • Users can use the --gas-limit to assign the limitation of costs.
• Beautified and colorized the WasmEdge CLI help information.

Fixed issues:

• Fixed the memory leak in function instances.
• Reduced the memory usage of the instruction class.
• Fixed the return value of the fread and fwrite WASI functions on Windows.

Refactor:

• Used assumingUnreachable instead of __builtin_unreachable to help the compiler to generate better codes.
• Updated the order of the members in the proposal enumeration.
• Refactored the instruction class for reducing the memory usage.
  • Refactored the WasmEdge::BlockType into a struct.
  • Categorized the members of the instruction class into a union.

Documentations:

• Added the build-on-Windows-10 documentation.
• Added the Reference Book.
• Updated the Release process.

Tests:

• Handled the tests for the 32-bit platforms.
• Added the spec tests for the multi-memories proposal.
• Added the test cases for getaddrinfo host function.
• Added the interruptible execution tests.
• Added the unit tests of async APIs.

Misc:

• Updated the blake3 library to 1.2.0.
• Added the copyright text.
• Fixed the coding style of the comments.
• Added the Windows installer release CI.
• Added the aarch64 Android support based on r23b.
• Added the Android example for WasmEdge C API.

Thank all the contributors that made this release possible!

2021, Antonio Yang, AvengerMoJo, Hanged Fish, Harinath Nampally, KernelErr, Michael Yuan, MileyFu, O3Ol, Saksham Sharma, Shen-Ta Hsieh(BestSteve), Shreyas Atre, SonOfMagic, Stephan Renatus, Sven Pfennig, Vaughn Dice, Xin Liu, Yi, Yi-Ying He, Yukang Chen, ZefengYu, ZhengX, alabulei1, alittlehorse, baiyutang, 董哲, hydai, javadoors, majinghe, meoww-bot, pasico, peterbi, villanel, wangshishuo, wangyuan249, wby, wolfishLamb, 王琦

If you want to build from source, please use WasmEdge-0.9.1-src.tar.gz instead of the zip or tarball provided by GitHub directly.

0.9.0 (2021-12-09)

Breaking changes:

• Turned on the SIMD proposal by default.
  • The WasmEdge_ConfigureContext will turn on the SIMD proposal automatically.
  • Users can use the --disable-simd to disable the SIMD proposal in wasmedge and wasmedgec.
• For better performance, the Statistics module is disabled by default.
  • To enable instruction counting, please use --enable-instruction-count.
  • To enable gas measuring, please use --enable-gas-measuring.
  • To enable time measuring, please use --enable-time-measuring.
  • For the convinence, use --enable-all-statistics will enable all available statistics options.
• wasmedgec AOT compiler tool behavior changes.
  • For the output file name with extension .so, wasmedgec will output the AOT compiled WASM in shared library format.
  • For the output file name with extension .wasm or other cases, wasmedgec will output the WASM file with adding the AOT compiled binary in custom sections. wasmedge runtime will run in AOT mode when it executes the output WASM file.
• Modulized the API Headers.
  • Moved the API header into the wasmedge folder. Developers should include the wasmedge/wasmedge.h for using the WasmEdge shared library after installation.
  • Moved the enumeration definitions into enum_errcode.h, enum_types.h, and enum_configure.h in the wasmedge folder.
  • Added the 201402L C++ standard checking if developer includes the headers with a C++ compiler.
• Adjusted the error code names.
  • Please refer to the ErrCode enum definition.
• Renamed the Interpreter into Executor.
  • Renamed the Interpreter namespace into Executor.
  • Moved the headers and sources in the Interpreter folder into Executor folder.
  • Renamed the Interpreter APIs and listed below.
• WasmEdge C API changes.
  • Updated the host function related APIs.
    • Deleted the data object column in the creation function of ImportObject context.
    • Merged the HostFunctionContext into FunctionInstanceContext.
      • Deleted the WasmEdge_HostFunctionContext object. Please use the WasmEdge_FunctionInstanceContext object instead.
      • Deleted the WasmEdge_HostFunctionCreate function. Please use the WasmEdge_FunctionInstanceCreate function instead.
      • Deleted the WasmEdge_HostFunctionCreateBinding function. Please use the WasmEdge_FunctionInstanceCreateBinding function instead.
      • Deleted the WasmEdge_HostFunctionDelete function. Please use the WasmEdge_FunctionInstanceDelete function instead.
      • Deleted the WasmEdge_ImportObjectAddHostFunction function. Please use the WasmEdge_ImportObjectAddFunction function instead.
    • Added the data object column in the creation function of FunctionInstance context.
    • Instead of the unified data object of the host functions in the same import object before, the data objects are independent in every host function now.
  • Added the WASM types contexts.
    • Added the WasmEdge_TableTypeContext, which is used for table instances creation.
    • Added the WasmEdge_MemoryTypeContext, which is used for memory instances creation.
    • Added the WasmEdge_GlobalTypeContext, which is used for global instances creation.
    • Added the member getter functions of the above contexts.
  • Updated the instances creation APIs.
    • Used WasmEdge_TableTypeContext for table instances creation.
      • Removed WasmEdge_TableInstanceGetRefType API.
      • Developers can use the WasmEdge_TableInstanceGetTableType API to get the table type instead.
    • Used WasmEdge_MemoryTypeContext for memory instances creation.
      • Added WasmEdge_MemoryInstanceGetMemoryType API.
    • Used WasmEdge_GlobalTypeContext for global instances creation.
      • Removed WasmEdge_GlobalInstanceGetValType and WasmEdge_GlobalInstanceGetMutability API.
      • Developers can use the WasmEdge_GlobalInstanceGetGlobalType API to get the global type instead.
  • Refactored for the objects' life cycle to reduce copying.
    • Developers should NOT destroy the WasmEdge_FunctionTypeContext objects returned from WasmEdge_VMGetFunctionList, WasmEdge_VMGetFunctionType, and WasmEdge_VMGetFunctionTypeRegistered functions.
    • Developers should NOT destroy the WasmEdge_String objects returned from WasmEdge_StoreListFunction, WasmEdge_StoreListFunctionRegistered, WasmEdge_StoreListTable, WasmEdge_StoreListTableRegistered, WasmEdge_StoreListMemory, WasmEdge_StoreListMemoryRegistered, WasmEdge_StoreListGlobal, WasmEdge_StoreListGlobalRegistered, WasmEdge_StoreListModule, and WasmEdge_VMGetFunctionList functions.
  • Renamed the Interpreter related APIs.
    • Replaced WasmEdge_InterpreterContext struct with WasmEdge_ExecutorContext struct.
    • Replaced WasmEdge_InterpreterCreate function with WasmEdge_ExecutorCreate function.
    • Replaced WasmEdge_InterpreterInstantiate function with WasmEdge_ExecutorInstantiate function.
    • Replaced WasmEdge_InterpreterRegisterImport function with WasmEdge_ExecutorRegisterImport function.
    • Replaced WasmEdge_InterpreterRegisterModule function with WasmEdge_ExecutorRegisterModule function.
    • Replaced WasmEdge_InterpreterInvoke function with WasmEdge_ExecutorInvoke function.
    • Replaced WasmEdge_InterpreterInvokeRegistered function with WasmEdge_ExecutorInvokeRegistered function.
    • Replaced WasmEdge_InterpreterDelete function with WasmEdge_ExecutorDelete function.
  • Refactored for statistics options
    • Renamed WasmEdge_ConfigureCompilerSetInstructionCounting to WasmEdge_ConfigureStatisticsSetInstructionCounting.
    • Renamed WasmEdge_ConfigureCompilerSetCostMeasuring to WasmEdge_ConfigureStatisticsSetCostMeasuring.
    • Renamed WasmEdge_ConfigureCompilerSetTimeMeasuring to WasmEdge_ConfigureStatisticsSetTimeMeasuring.
    • Renamed WasmEdge_ConfigureCompilerGetInstructionCounting to WasmEdge_ConfigureStatisticsGetInstructionCounting.
    • Renamed WasmEdge_ConfigureCompilerGetCostMeasuring to WasmEdge_ConfigureStatisticsGetCostMeasuring.
    • Renamed WasmEdge_ConfigureCompilerGetTimeMeasuring to WasmEdge_ConfigureStatisticsGetTimeMeasuring.
  • Simplified the WASI creation and initialization APIs.
    • Removed the Dirs and DirLen parameters in the WasmEdge_ImportObjectCreateWASI.
    • Removed the Dirs and DirLen parameters in the WasmEdge_ImportObjectInitWASI.

Features:

• Applied the old WebAssembly proposals options (All turned on by default).
  • Developers can use the disable-import-export-mut-globals to disable the Import/Export mutable globals proposal in wasmedge and wasmedgec.
  • Developers can use the disable-non-trap-float-to-int to disable the Non-trapping float-to-int conversions proposal in wasmedge and wasmedgec.
  • Developers can use the disable-sign-extension-operators to disable the Sign-extension operators proposal in wasmedge and wasmedgec.
  • Developers can use the disable-multi-value to disable the Multi-value proposal in wasmedge and wasmedgec.
• New WasmEdge C API for listing imports and exports from AST module contexts.
  • Developers can query the ImportTypeContext and ExportTypeContext from the ASTModuleContext.
  • New object WasmEdge_ImportTypeContext.
  • New object WasmEdge_ExportTypeContext.
  • New AST module context functions to query the import and export types.
    • WasmEdge_ASTModuleListImportsLength function can query the imports list length from an AST module context.
    • WasmEdge_ASTModuleListExportsLength function can query the exports list length from an AST module context.
    • WasmEdge_ASTModuleListImports function can list all import types of an AST module context.
    • WasmEdge_ASTModuleListExports function can list all export types of an AST module context.
  • New import type context functions to query data.
    • WasmEdge_ImportTypeGetExternalType function can get the external type of an import type context.
    • WasmEdge_ImportTypeGetModuleName function can get the import module name.
    • WasmEdge_ImportTypeGetExternalName function can get the import external name.
    • WasmEdge_ImportTypeGetFunctionType function can get the function type of an import type context.
    • WasmEdge_ImportTypeGetTableType function can get the table type of an import type context.
    • WasmEdge_ImportTypeGetMemoryType function can get the memory type of an import type context.
    • WasmEdge_ImportTypeGetGlobalType function can get the global type of an import type context.
  • New export type context functions to query data.
    • WasmEdge_ExportTypeGetExternalType function can get the external type of an export type context.
    • WasmEdge_ExportTypeGetExternalName function can get the export external name.
    • WasmEdge_ExportTypeGetFunctionType function can get the function type of an export type context.
    • WasmEdge_ExportTypeGetTableType function can get the table type of an export type context.
    • WasmEdge_ExportTypeGetMemoryType function can get the memory type of an export type context.
    • WasmEdge_ExportTypeGetGlobalType function can get the global type of an export type context.
  • For more details of the usages of imports and exports, please refer to the C API documentation.
• Exported the WasmEdge C API for getting exit code from WASI.
  • WasmEdge_ImportObjectWASIGetExitCode function can get the exit code from WASI after execution.
• Exported the WasmEdge C API for AOT compiler related configurations.
  • WasmEdge_ConfigureCompilerSetOutputFormat function can set the AOT compiler output format.
  • WasmEdge_ConfigureCompilerGetOutputFormat function can get the AOT compiler output format.
  • WasmEdge_ConfigureCompilerSetGenericBinary function can set the option of AOT compiler generic binary output.
  • WasmEdge_ConfigureCompilerIsGenericBinary function can get the option of AOT compiler generic binary output.
• Provided install and uninstall script for installing/uninstalling WasmEdge on linux(amd64 and aarch64) and macos(amd64 and arm64).
• Supported compiling WebAssembly into a new WebAssembly file with a packed binary section.
• Supported the automatically pre-open mapping with the path name in WASI.

Fixed issues:

• Refined the WasmEdge C API behaviors.
  • Handle the edge cases of WasmEdge_String creation.
• Fixed the instruction iteration exception in interpreter mode.
  • Forcely added the capacity of instruction vector to prevent from connection of instruction vectors in different function instances.
• Fixed the loader of AOT mode WASM.
  • Checked the file header instead of file name extension when loading from file.
  • Showed the error message when loading AOT compiled WASM from buffer. For AOT mode, please use the universal WASM binary.
  • Fixed the zero address used in AOT mode in load manager.
  • Fixed the loading failed for the AOT compiled WASM without intrinsics table.
• Fixed the VM creation issue.
  • Added the loss of intrinsics table setting when creating a VM instance.
• Fixed wasi-socket issues.
  • Support wasi-socket on MacOS.
  • Remove the port parameter from sock_accept.

Refactor:

• Refined headers inclusion in all files.
• Refactor the common headers.
  • Removed the unnecessary genNullRef().
  • Merged the building environment-related definitions into common.
  • Merged the common/values.h into common/types.h.
  • Separated all enumeration definitions.
• Refactored the AST nodes.
  • Simplified the AST nodes definitions into header-only classes.
  • Moved the binary loading functions into loader.
  • Updated the validator, executor, runtime, api, and vm for the AST node changes.
• Refactored the runtime objects.
  • Used AST::FunctionType, AST::TableType, AST::MemoryType, and AST::GlobalType for instance creation and member handling.
  • Removed Runtime::Instance::FType and used AST::FunctionType instead.
  • Added routines to push function instances into import objects.
  • Removed the exported map getter in StoreManager. Used the getter from ModuleInstance instead.
  • Added the module name mapping in StoreManager.
• Refactored the VM class.
  • Returned the reference to function type instead of copying when getting the function list.
  • Returned the vector of return value and value type pair when execution.
• Updated the include path for rust binding due to the API headers refactoring.

Documentations:

• Updated the wasmedge commands in the Run and SIMD documentation
• Updated the examples in the C API documentation.
• Updated the examples in the host function documentation.
• Updated the examples in the external reference documentation.

Bindings:

• Move rust crate from root path to bindings/rust.

Tests:

• Updated the core test suite to the newest WASM spec.
• Updated and fixed the value comarison in core tests.
• Added ErrInfo unit tests.
• Added instruction tests for turning on/off the old proposals.
• Moved and updated the AST unit tests into loader.
• Moved and updated the Interpreter tests into Executor folder.
• Added the unit tests for new APIs.
• Applied the WasmEdge C API in the ExternRef tests.

Misc:

• Enabled GitHub CodeSpaces
• Added assuming for assert checking to help compiler to generate better codes.

Thank all the contributors that made this release possible!

2021, actly, alabulei1, Alex, Antonio Yang, Ashutosh Sharma, Avinal Kumar, blackanger, Chojan Shang, dm4, eee4017, fossabot, hydai, Jayita Pramanik, Kenvi Zhu, luishsu, LuisHsu, MaazKhan711635, Michael Yuan, MileyFu, Nick Hynes, O3Ol, Peter Chang, robnanarivo, Shen-Ta Hsieh, Shreyas Atre, slidoooor, Sylveon, Timothy McCallum, Vikas S Shetty, vincent, Xin Liu, Yi Huang, yiying, YiYing He, Yona, Yukang, 牟展佑

If you want to build from source, please use WasmEdge-0.9.0-src.tar.gz instead of the zip or tarball provided by GitHub directly.

0.8.2 (2021-08-25)

Features:

• WASI:
  • Supported WASI on macOS(Intel & M1).
  • Supported WASI on Windows 10.
  • Supported WASI Socket functions on Linux.
• C API:
  • Supported 32-bit environment.
  • Added the static library target libwasmedge_c.a (OFF by default).
  • Added the ErrCode to C declarations.
  • Added the API about converting WasmEdge_String to C string.
  • Added the API to get data pointer from the WasmEdge_MemoryInstanceContext.
• AOT:
  • Added --generic-binary to generate generic binaries and disable using host features.
• Multi platforms:
  • Enabled Ubuntu 20.04 x86_64 build.
  • Enabled Ubuntu 21.04 x86_64 build.
  • Enabled manylinux2014 aarch64 build.
  • Enabled Ubuntu 21.04 arm32 build.
• Rust supports:
  • Added the wasmedge-sys and wasmedge-rs crates.
  • Added the wrapper types to rust.
• Removed binfmt support.

Fixed issues:

• Ensured every platform defines is defined.
• Disabled blake3 AVX512 support on old platforms.
• Avoided vector ternary operator in AOT, which is unsupported by clang on mac.
• The preopen should be --dir guest_path:host_path.
• Fixed usused variables error in API libraries when AOT build is disabled.
• Fixed the WASI function signature error.
  • wasi_snapshot_preview1::path_read_link
    • Fixed the signature error with the lost read size output.
    • Added the Out comments for parameters with receiving outputs.
  • wasi_snapshot_preview1::path_filestat_set_times
    • Corrected the time signature to the u64.

Misc:

• Changed all CMake global properties to target specified properties.
  • Added namespace to all cmake options.
• Added the CMake option WASMEDGE_FORCE_DISABLE_LTO to forcibly disable link time optimization (OFF by default).
  • WasmEdge project enables LTO by default in Release/RelWithDeb build. If you would like to disable the LTO forcibly, please turn on the WASMEDGE_FORCE_DISABLE_LTO option.
• Installed dpkg-dev in docker images to enable dpkg-shlibdeps when creating the deb release.

Refactor:

• Refactored the WASI VFS architecture.
• Simplified the memory indexing in validator.
• Renamed the file names in interpreter.
• Replaced the instances when registering host instances with existing names.

Documentations:

• Added the Quick Start Javascript document.
• Added the Use Cases document.
• Fixed the wrong printf type in the C API document.

Tests:

• Added wasi-test for testing basic WASI interface
• Added C API unit tests.
  • Added the WasmEdge_String copy tests.
  • Added the WasmEdge_MemoryInstanceContext get data pointer tests.
• Removed unnecessary Wagon and Ethereum tests.

0.8.1 (2021-06-18)

Features:

• Exported new functions in C API to import the wasmedge_process module.
  • WasmEdge_ImportObjectCreateWasmEdgeProcess() can create and initialize the wasmedge_process import object.
  • WasmEdge_ImportObjectInitWasmEdgeProcess() can initialize the given wasmedge_process import object.
• Exported new AOT compiler configuration setting C APIs.
  • Users can set the options about AOT optimization level, dump IR, and instruction counting and cost measuring in execution after compilation to the AOT compiler through C APIs.
• Updated error codes according to the newest test suite of WebAssembly.
  • Applied the correct error message when trapping in the loading phase.
• Implemented the UTF-8 decoding in file manager.
• Implemented the basic name section parsing in custom sections.
• Added memory-mapped file helper, MMap for Linux.
  • Used mmap with MAP_NORESERVE for overcommited allocation.
  • Used MMap for file loading.
  • Merged FileMgr variants into one class.

Fixed issues:

• Applied the UTF-8 decoding.
  • Check the UTF-8 validation in custom sections, export sections, and import sections.
• Detected the redundant sections in modules.
  • Fixed this issue hence the sections rather than the custom section should be unique.
• Corrected the logging of data offset in the file while trap occurred in the loading phase.
  • Updated to the correct offset according to the refactored file manager.

Refactor:

• Updated manylinux* dockerfiles.
  • Upgraded gcc to 11.1.0.
  • Upgraded llvm to 11.1.0.
  • Upgraded boost to 1.76.
  • Moved environment variables to Dockerfile.
  • Used helper scripts to build.
• Moved the options of the AOT compiler into the Configure class.
• Refactor the file manager for supporting the Unexpected end loading malformed test cases.
  • Added the setSectionSize function to specify the reading boundary before the end of the file.
• Adjusted build scripts.
  • Set job pools for ninja generator.
  • Checked for newer compilers in std::filesystem.
  • Adjusted library dependency.

Documentations:

• Updated the WasmEdge ecosystem document.
  • Renamed the SSVM related projects into WasmEdge.

Tools:

• Updated the wasmedgec AOT compiler tool for API changes of the Configure.

Tests:

• Turn on the assert_malformed tests for WASM binary in spec tests.
  • Apply the interpreter tests.
  • Apply the AOT tests.
  • Apply the API tests.
• Updated the API unit tests for the new Configure APIs.
• Updated the AST and loader unit tests.
  • Added test cases of file manager to raise the coverage.
  • Added test cases of every AST node to raise the coverage.

0.8.0 (2021-05-13)

Breaking changes:

• Renamed this project to WasmEdge (formerly ssvm).
  • The tool wasmedge is the WebAssembly runtime (formerly ssvm).
  • The tool wasmedgec is the WebAssembly AOT compiler (formerly ssvmc).
• Renamed the CMake options.
  • Option BUILD_AOT_RUNTIME (formerly SSVM_DISABLE_AOT_RUNTIME and OFF by default), which is ON by default, is for enabling the compilation of the ahead-of-Time compiler.
• Turned on the reference-types and bulk-memory-operations proposals by default in tools.
  • Users can use the disable-bulk-memory to disable the bulk-memory-operations proposal in wasmedge and wasmedgec.
  • Users can use the disable-reference-types to disable the reference-types proposal in wasmedge and wasmedgec.

Features:

• Added WasmEdge C API and shared library.
  • Developers can include the wasmedge.h and link the libwasmedge_c.so for compiling and running WASM.
  • Add CMake option BUILD_SHARED_LIB to enable compiling the shared library (ON by default).
  • The APIs about the ahead-of-time compiler will always return failed if the CMake option BUILD_AOT_RUNTIME is set as OFF.
• Added common/version.h: define the package version from cmake.
• Updated Configure.
  • Turned on the reference-types and bulk-memory-operations proposals by default.
  • Supports memory page limitation for limiting the largest available pages in memory instances.
• Added a function in Log to enable the debug logging level.
• Added global options with subcommands into PO.
• Added an API into StoreManager to list the registered module names.
• Added an API into TableInstance to grow table with ref.null.
• Updated SIMD implementation with the newest SIMD proposal.
• Supported AOT compile cache.
  • Added blake3 hash calculator to calculate hash for caching files.
• Added an API into VM for loading WASM module from AST::Module.

Fixed issues:

• Adjusted and fixed cmake issues.
  • Used CMAKE_CURRENT_SOURCE_DIR in this project for supporting to be as a submodule.
  • Assigned a default version number (0.0.0-unreleased) when getting the version from git describe failed.
  • Fixed boost include variable names.
• Fixed WASI poll_oneoff.
  • Allow SIGINT and SIGTERM while waiting for the file descriptor and check SIGTERM after epoll.
• Rearranged variables for CPU feature detection in AOT compiler.
• Fixed Validator errors.
  • Fixed the error in br_table for pushing wrong types into validation stack.
  • Fixed the error in global_set for iterating illegal indices.
• Fixed Interpreter errors.
  • Fixed the failed case that not returned the errors except ErrCode::ExecutionFailed when invoking the host functions.
  • Not to return success when the ErrCode::Terminated occurs.
• Fixed the unmapping size in the destructor of MemoryInstance.

Refactor:

• Merged the CostTable class into Statistics.
  • Simplified the API for getting and setting cost table.
  • Initialized the costs for every instruction as 1 by default.
• Merged the Proposal and HostRegistration configurations into Configure.
  • Adjusted the Proposal order.
• Applied the copy of Configure in Loader, Validator, Interpreter, and VM instead of passing by reference.
• Refactored the functions in the StoreManager.
  • Updated the templates of functions to register instances.
  • Forwarded the parameters to reduce moving.
• Refactored and used the std::variant to save space in FunctionInstance.
• Applied function parameter type checking when invoking a wasm function in Interpreter.
• Set the module instantiation as the anonymous active module in Interpreter.
• Added the const quantifier in get and load data functions of MemoryInstance.

Documentations:

• Added release process document.
• Added contributing document.
• Added code of conduct document.
• Added roadmap document.
• Updated external references document for the VM API changes.
• Updated the WasmEdge ecosystem document.
• Added scripts to generate witx documents.
  • Cherry-pick wasi_ephemeral_sock APIs from wasi_snapshot_preview1.

Tools:

• wasmedge: WebAssembly runtime (formerly ssvm)
  • Turned on the bulk-memory-operations and reference-types proposals by default.
    • Users can use the disable-bulk-memory to disable the bulk-memory-operations proposal.
    • Users can use the disable-reference-types to disable the reference-types proposal.
  • Updated for the vm API changes.
  • Return the exit code in command mode in forced terminated occurs in WASI.
• wasmedgec: WebAssembly AOT compiler (formerly ssvmc)
  • Turned on the bulk-memory-operations and reference-types proposals by default.
    • Users can use the disable-bulk-memory to disable the bulk-memory-operations proposal when compiling.
    • Users can use the disable-reference-types to disable the reference-types proposal when compiling.

Tests:

• Added AOT cache tests.
• Added memory page size limit tests.
• Updated the WASM spec tests.
  • Updated WasmEdge-unittest and check out the newest test suites.
    • Updated the SIMD test data.
    • For the WasmEdge 0.8.0, we use the wasm-dev-0.8.0 tag for the core tests and the SIMD proposal tests.
  • Adjusted the code architecture for core testing.
    • Combined the duplicated functions into the SpecTest class.
    • Split out the spectest host function definitions for importing repeatedly.
• Added WasmEdge C API tests.
  • Added unit tests for APIs in the WasmEdge shared library.
  • Applied WASM core tests for the WasmEdge shared library in both using Interpreter APIs and VM APIs.

0.7.3 (2021-01-22)

Features:

• Updated the easylogging++ to v9.97.0.
  • Disabled the file logging.
• Initial supported the WASI host functions for old system (CentOS 6).
  • Updated the WASI subscription insterface.
  • Used pipe for old GLIBC.
• Added supporting of subcommand in PO.
• Provided options to toggle white lists of ssvm_process in ssvm tool.
  • --allow-command COMMAND to add a command into white list in ssvm_process host functions.
  • --allow-command-all to allow all commands in ssvm_process host functions.
• Added the documentation of SSVM ecosystem.

Fixed issues:

• Fixed the loading issues in file manager.
  • Refined performance and added error handling in readBytes.
  • Fixed LEB128 and ULEB128 decoding and error codes.
• Fixed security issues of executing commands in ssvm_process host functions.
  • Managed a white list for command execution.

Refactor:

• Used vector of instance instead of std::unique_ptr in AST nodes.
• Merged all instruction node classes.
  • Added OpCode::Else instruction.
  • Serialized the instruction sequences. Move out the block body of If, Block, and Loop instructions.
• Applied the proposal configuration checking in the loader phase.
  • Moved the OpCode and value type validation of proposal configuration checking to loader phase.
  • Fixed the logging message.
  • Added helper functions to clean codes of logging.
• Refactored the validator for instruction serialization.
  • Removed the duplicated proposal configuration checking done at the loader phase.
  • Serialized the instruction iterating when validating.
• Refactored the Label in stack manager.
  • Label will record the from instruction iterator that causes entering this label.
  • Removed the next instruction getter in stack manager.
• Refactored the instruction iterating mechanism in interpreter.
  • Used the program counter to iterate and execute the instructions.
  • Merged all switch cases of OpCode.
• Moved out AOT related proxy codes and helper functions in interpreter to dependent files.

Tools:

• Added binfmt supporting for WASM interpreter.
  • Please use the tool tools/ssvm/ssvm-static with the same arguments as ssvm.
• Provided manylinux* support for legacy operatoring systems
  • manylinux1 is based on CentOS 5.9
  • manylinux2010 is based on CentOS 6
  • manylinux2014 is based on CentOS 7

Tests:

• Updated file manager tests for LEB128 and ULEB128 decoding.
• Updated AST tests for refactored AST nodes.
• Updated instruction tests for refactored instruction nodes.
• Added PO tests.
• Added ssvm_process tests.

0.7.2 (2020-12-17)

Features:

• Added a cmake option to toggle the compilation of ssvm and ssvmr tools.
  • This option is ON in default.
  • cmake -DBUILD_TOOLS=Off to disable the compilation of tools/ssvm folder when building.
• Applied the Fixed-width SIMD proposal.
  • Please refer to the SIMD document for more details.
• Provided options to toggle proposals for the compiler and runtime.
  • --enable-bulk-memory to enable bulk-memory operations proposal.
  • --enable-reference-types to enable reference types proposal.
  • --enable-simd to enable SIMD proposal.
  • --enable-all to enable all supported proposals.
• Supported roundeven intrinsic in LLVM 11.

Fixed issues:

• Used std::filesystem::path for all paths.
• Interpreter
  • Fixed call_indirect table index checking in the validation phase.
  • Removed redundant reinterpret_cast in interpreter.
• AOT compiler
  • Forced unalignment in load and store instructions in AOT.
  • Not to report error in terminated case.
• WASI
  • Updated size of linkcount to u64.

Refactor:

• Added uint128_t into SSVM::ValVariant.
  • Added number type v128.
• Added SSVM::RefVariant for 64bit-width reference variant.
• Refactor AOT for better performance.
  • Added code attribute in AOT to speed up normal execution.
  • Rewrote element-wise boolean operators.
  • Used vector type in stack and function for better code generation.
  • Rewrite trunc instructions for readability.

Tools:

• Deprecated ssvmr tool, since the functionalities are the same as ssvm tool.
  • Please use the tool tools/ssvm/ssvm with the same arguments.
• Combined the tools folder. All tools in tools/ssvm-aot are moved into tools/ssvm now.

Tests:

• Added Wasi test cases.
  • Added test cases for args functions.
  • Added test cases for environ functions.
  • Added test cases for clock functions.
  • Added test cases for proc_exit and random_get.
• Updated test suites and categorized them into proposals.
  • Added SIMD proposal test suite.
  • Official test suite
  • SSVM unit test in proposals

0.7.1 (2020-11-06)

Features:

• Applied the reference types and bulk memory operations proposal for AOT.
• Support LLVM 11.

Refactor:

• Refactor symbols in AOT.
  • Removed the symbols in instances.
  • Added instrinsics table for dynamic linking when running a compiled wasm.
• Merged the program counter into stack manager.
• Added back the OpCode::End instruction.
• Refactored the validator workflow of checking expressions.
• Used std::bitset for VM configuration.
• Used std::array for cost table storage.
• Conbined include/support into include/common.
  • Merged support/castng.h into common/types.h.
  • Merged Measurement into Statistics.
  • Renamed support/time.h into common/timer.h. Used standard steady clock instead.
  • Renamed common/ast.h into common/astdef.h.
  • Moved common/ast/ to ast/.
  • Removed the SSVM::Support namespace.

Tests:

• Applied new test suite of the reference types and bulk memory operation proposal for AOT.

0.7.0 (2020-10-16)

Features:

• Applied the reference types and bulk memory operations proposal.
  • Added the definition of reference types.
    • Added helper functions for function index to funcref conversions.
    • Added helper functions for reference to externref conversions.
  • Added the following new instructions.
    • Reference instructions:
      • ref.null
      • ref.is_null
      • ref.func
    • Table instructions:
      • table.get
      • table.set
      • table.init
      • elem.drop
      • table.copy
      • table.grow
      • table.size
      • table.fill
    • Memory instructions:
      • memory.init
      • data.drop
      • memory.copy
      • memory.fill
    • Parametric instructions:
      • select t
  • Updated implementation of the following instructions.
    • call_indirect
    • select
  • Applied the new definition of data count section, data segment, and element segment.
  • Applied validation for data segment and element segment.
  • Added the data instance and element instance.
  • Applied the new instantiation flow.

Refactor:

• Completed the enumeration value checking in the loading phase.
• Updated the value type definition.
  • ValType is updated to include NumType and RefType.
  • NumType is updated to include i32, i64, f32, and f64.
  • RefType is updated to include funcref and externref, which replaced the ElemType.
• Updated error codes according to the test suite for the reference types proposal.
• Extended validation context for recording datas, elements, and refs.
• Updated runtime structures.
  • Fixed minimum pages definition in memory instance.
  • Applied new definitions of table instance.
  • Extended module instance for placing data instance and element instance.
  • Extended store for owning data instance and element instance.
• Updated template typename aliasing in interpreter.

Tests:

• Applied new test suite for the proposal.
  • Official test suite
  • SSVM unit test for reference types
• Supported funcref and externref types parameters in core tests.
• Added externref tests for testing object binding and samples.
  • Please see the document for detail.

0.6.9 (2020-10-16)

Features:

• Added gas and instruction count measurement in AOT.

0.6.8 (2020-10-05)

Features:

• Supported loop parameters in AOT.
• Added optimization level settings in the AOT compiler.

Refactor:

• Applied page based allocation in memory instance, instead of preserving 4G at once.

Fixed Issues:

• Fixed error marking stdin, stdout, and stderr file descriptor as pre-opened when initializing WASI environment.
• Fixed ssvm_process error handling when execution commands.
  • Print error message when command not found or permission denied.
  • Fixed casting of return codes.

Tests:

• Split the core test to helper class for supporting AOT core tests in the future.

0.6.7 (2020-09-09)

This is a bug-fix release for the ssvm_process component.

Fixed Issues:

• Handle the large size writing to pipe in ssvm_process.

0.6.6 (2020-09-02)

Features:

• Add option for dumping LLVM IR in ssvmc.
• Add SSVM_Process configuration.
  • VM with this option will import ssvm_process host modules.
  • ssvm_process host functions are SSVM extension for executing commands.
  • This host module is to support wasm compiled from rust with rust_process_interface_library crate..
• Turn on SSVM_Process configuration in both ssvmr and ssvm.

Refactor:

• Apply mprotect memory boundary checking in memory instance.

Fixed Issues:

• Prevent undefined behavior on shift operations in interpreter and file manager.

0.6.5 (2020-08-21)

Features:

• Support WebAssembly reactor mode in both ssvmr and ssvm.

Refactor:

• Use vector instead of deque in Validator.

Fixed Issues:

• Fixed cost table to support 2-byte instructions.
• Resolved warnings about signed and unsigned comparing.
• Fixed printing error about hex strings in error messages.
• Corrected memory boundary logging in error messages.
• Ignore SIGINT when ssvm is forced interrupted.

Tests:

• Add ssvm-aot tests.

Tools:

• Updated ssvm interpreter.
  • ssvm provides interpreter mode of executing wasm.
  • The usage of ssvm is the same as ssvmr.
  • Added STATIC_BUILD mode for linking std::filesystem statically.

0.6.4 (2020-07-30)

This is a bug-fix release for the warnings.

Fixed Issues:

• Resolved warnings with compilation flag -Wall.
• Add -Wall flag in CMakeFile.

Refactor:

• Refactored instruction classes for supporting 2-byte instructions.
• Refined corresponding switch cases in validator, interpreter, and AOT.

0.6.3 (2020-07-23)

This is a bug-fix release for the wasi component.

Fixed Issues:

• Change the fd number remap mechanism from static offset to dynamic map.

0.6.2 (2020-07-22)

Features:

• New target support:
  • Add aarch64 target support for both ssvm-interpreter and ssvm-aot tools.
• Wasm spec 1.1 support:
  • Implement multi-value return proposal.
  • Implement signed extension and saturated convert instructions.
    • i32.extend8_s
    • i32.extend16_s
    • i64.extend8_s
    • i64.extend16_s
    • i64.extend32_s
    • i32.trunc_sat_f32_s
    • i32.trunc_sat_f32_u
    • i32.trunc_sat_f64_s
    • i32.trunc_sat_f64_u
    • i64.trunc_sat_f32_s
    • i64.trunc_sat_f32_u
    • i64.trunc_sat_f64_s
    • i64.trunc_sat_f64_u
• Wasm spec test suites support:
  • Add ssvm-unittest toolkit for integrating wasm spec test suites.
  • Enable assert_invalid tests
• Wasi support:
  • Enable environ variables support:
    • add --env option for environment variables.
    • allow developers to append more environment variables from a given env list, e.g. PATH=/usr/bin, SHELL=ZSH.
  • Enable preopens support:
    • add --dir option for preopens directories.
    • allow developers to append more preopens directories from a given dir list, e.g. /sandbox:/real/path, /sandbox2:/real/path2.
• New Statistics API:
  • With statistics class, developers can get the following information after each execution:
    • Total execution time in us. (= Wasm instruction execution time + Host function execution time)
    • Wasm instruction execution time in us.
    • Host function execution time in us. A host function can be a evmc function like evmc::storage_get, a wasi function like random_get, or any customized host function.
    • Instruction count. (Total executed instructions in the previous round.)
    • Total gas cost. (Execution cost by applying ethereum-flavored wasm cost table.)
    • Instruction per second.
• Validator:
  • Support Wasm 1.1 instructions validation.
  • Support blocktype check which is used in multi-value return proposal.
• Logging system:
  • Support 2-byte instructions.

Refactor:

• Remove redundant std::move in return statements.

Fixed Issues:

• Fix std::filesystem link issue in ssvm-aot tool.
• Fix -Wreorder warnings in errinfo.h
• Fix several implementation errors in wasi functions.

Tools:

• CI: Update base image from Ubuntu 18.04 to Ubuntu 20.04

0.6.1 (2020-06-24)

Features:

• Error Logging System
  • Add information structures to print information when an error occurs.
  • Apply error logging in every phase.

Refactor:

• Internal tuple span mechanism
  • Apply C++20 span features instead of std::vector &.
• Internal string passing mechanism
  • Apply C++17 std::string_view for passing strings.
• Move enumeration definitions
  • Add string mapping of types, instructions, and AST nodes.
  • Move enumerations to SSVM top scope.
• Memory instance passing in host functions
  • Pass pointer instead of reference of memory instance to allow nullptr.

Fixed Issues:

• Instantiation Phase
  • Fixed boundary checking bugs when initializing data sections.
• Function invocation
  • Add dummy frame when invoking function from VM.

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 partitions of sections in wasm module.
• AOT
  • Add SSVM-AOT tools.

Tools:

• SSVM-AOT
  • Enable to compile and run separately.
  • Enable to run compiled module and normal module with the 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 recursively copying.
  • Refine include paths and dependencies in every static library.
  • Modularize static libraries to be included as submodules easier.
• Interpreter
  • Use function address in Store for invoking instead of the exported function name.
  • Support invocation 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 invocation and return.
• Runtime Data Structure
  • Fix the 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 operand in min and max instructions.
    • Add dummy frame before function invocation according to Wasm spec.
    • Add memory boundary checking when loading value in memory instructions.
• AOT
  • Fix wrong handling of the minimum operand in mod instructions.
  • Fix wrong handling of NaN operand 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.

0.5.1 (2020-04-09)

SSVM 0.5.1 is a bug-fix release from 0.5.0.

• Issues:
  • Set correct reset timing of the interpreter.
  • Fix data copying in table instance in the instantiation phase.
  • Fix label popping in stack manager.

0.5.0 (2020-04-01)

Features:

• Ethereum environment interface
  • Implemented all EEI functions.
  • For more details, please refer to Ewasm functions design document
• Validation
  • Completed validations for wasm sections.
  • Completed checkings in const expressions.
• Runtime Wasm module registering
  • WASM modules can be registered into Store for importing.
  • Host modules, which may contain host functions and globals, can be registered into Store.
• (Experimental) New VM APIs
  • New VM is refactoring from legacy’s VM and provides a rapidly running process for WASM.
  • Export Store for external access.
• Node.js addon
  • Integrate SSVM with Node.js Addon API.
  • SSVM Node.js addon is separated from this project as an independent repository.

Refactor:

• Code structure layout
  • Create common namespace for cross-component data structures and type definitions.
  • Extract AST structures from ast to common.
  • Extract duplicate enumerations to common.
  • Collects all error code classes into common.
• Internal error handling mechanism
  • Apply C++ p0323r9 expected features
  • Add several helper functions for wrapping return values with error code.
• Wasm loader
  • Simplify workflow.
  • Take a wasm input and return an AST object directly.
• Wasm validator
  • Simplify workflow.
  • Take an AST object and return the results.
  • Rename validator/vm to formchecker.
• Refine runtime data structure
  • Extract instances, host functions, stack manager, and store manager classes to runtime folder.
  • Extract frame, label, and value entry classes into stack manager.
  • Delete redundant checks in stack manager. All of these checks are verified in the validation stage.
  • Add ImportObj class for handling the host modules registration.
• Interpreter
  • Create interpreter namespace.
  • Extract executor class to interpreter.
  • Add instantiation methods for registering host modules.
• Host functions
  • Create host namespace.
  • Extract EEI, Wasi-core, and ONNC host functions to host.
  • Make host functions construction in host modules.
  • Extract host environments from environment manager to respective host modules.
• Refactoring from legacy VM.
  • Simplify workflow. Provide two approaches for invoking a wasm function.
    • All-in-one way: Calling runWasmFile can instantiate and invoke a wasm function directly.
    • Step-by-step way: Calling loadWasm, validate, instantiate, execute sequentially can make developers control the workflow manually.
  • External access APIs
    • Access exported wasm functions.
    • Export Store.
    • Export measurement data class including instruction counter, timer, and cost meter.
  • Provide registration API for wasm modules and host modules.
  • Extract host environments of EEI and Wasi-core into respective host modules.
  • Apply experimental VM to ssvm-proxy and ssvm-evmc tools.

Tools:

• Remove unused ssvm-evm
  • ssvm-evm is replaced by ssvm-evmc.
• (Experimental) Add sub-project ssvm-aot
  • ssvm-aot provides ahead-of-time(AOT) compilation mechanism for general wasm applications.

Tests:

• Remove redundant ssvm-evm tests.
• (Experimental) Add integration tests for ssvm-aot.
• (Experimental) Add unit tests for C++ expected feature.
• Move AST tests to the test top folder.

Fixed issues:

• Ethereum Environment Interface
  • Fix function signatures.
  • Return fail instead of revert when the execution state is out of gas.
  • Handle memory edge case when loading and storing from memory instance.
  • Add missing check for evmc flags.
  • Set running code to evmc environment.
• Complete import matching when instantiation in the interpreter.
• Fix lost of validation when importing globals.

0.4.0 (2020-01-17)

Features:

• Ethereum environment interface implementation
  • Add EVMC library.
  • Ewasm functions implemented
  • Update gas costs of Ewasm functions.

Refactor:

• Host functions:
  • Use the template to generate wasm function type of host function body.
  • Move function module name and function name to host function class.

Tools:

• Sub-project EVM with evmc
  • SSVM-EVMC integrates EVMC and Ethereum Environment Interface(EEI).
  • SSVM-EVMC is a shared library for EVMC-compatible clients.

Tests:

• ERC20 contracts for SSVM-EVMC
  • Create an example VM for testing.
  • Test the following functionalities of ERC20 contracts:
    • Deploy ERC20 contract
    • Check balance
    • Check total supply
    • Transfer
    • Approve
    • Check allowance

0.3.2 (2020-01-09)

Fixed issues:

• Handle empty length of memory in vm_snapshot.
• Correct error message when execution failed in SSVM proxy mode.

0.3.1 (2020-01-07)

Fixed issues:

• Change the naming style of JSON format in SSVM proxy mode
  • Use snake case for the keys of JSON files instead
• Change the arguments and return value formats.
  • Add argument_types and return_types in input JSON format.
• Expand home directory path
  • Accept ~ in the file path

0.3.0 (2019-12-27)

Features:

• WebAssembly Validation
  • Implement the Wasm Validation mechanism. SSVM will validate wasm modules before execution.
• Snapshot and restore execution state
  • SSVM provides restore mechanism from the previous execution state.
  • SSVM provides a snapshot mechanism to dump the current execution state.
• JSON interface Spec
  • Initialize and set up SSVM via input JSON format.
  • Retrieve execution results via output JSON format.

Tools:

• Sub-project RPC service proxy mode
  • SSVM-PROXY is a component of SSVMRPC service.
  • SSVM-PROXY can archive current execution states and serialize these data into output JSON format.
  • SSVM-PROXY can restore previous program states from input JSON format.

0.2.0 (2019-12-18)

Features:

• Native Cost Metering
  • SSVM provides CostTab for each instruction including Wasm, Wasi, Ewasm.
  • With this feature, users can set the cost limit for measuring the execution cost.
• Built-in performance timer
  • TimeRecord collects execution time for the performance analysis.
  • TimeRecord supports multiple timers.
  • SSVM also provides Wasi timer API for developers to customize TimeRecord.
• Multiple Virtual Machine Environment
  • Wasm mode: Support general Wasm program.
  • Wasi mode: In addition to Wasm mode, this mode contains basic Wasi functions like print.
  • QITC mode: In addition to Wasi mode, this mode is designed for ONNC runtime to execute AI models by leveraging Qualcomm Hexagon SDK.
  • Ewasm mode: In addition to Wasm mode, this mode is designed for Ethereum flavor WebAssembly.
• Start functions enhancement
  • Support start function assignment. This makes users invoke an exported function with a given function name.
  • Support start function arguments and return value. This makes users can insert arguments and retrieve result after execution.
• Simple statistics output
  • Dump total execution time and instruction per second for benchmarking.
  • Print used gas costs for Ewasm mode.
  • Print storage and return values.

Tools:

• Sub-project Qualcomm Innovate in Taiwan Challenge(a.k.a QITC) 2019
  • SSVM-QITC enables AI model execution by integrating ONNC runtime and Qualcomm Hexagon SDK.
  • With this tool, users can run AI model inference within a WebAssembly Virtual Machine.
• Sub-project Ethereum
  • SSVM-EVM integrates the Ethereum Environment Interface(EEI) as a WebAssembly extension.
  • With this tool, users can run blockchain applications, which are compiled into Ewasm bytecodes.
• Sub-project General Wasi Support
  • SSVM tool provides basic Wasi functions support, such as print function.

0.1.0 (2019-11-29)

Features:

• Lexer: Support full wasm bytecode format
• AST: Be able to load a wasm module
• Instantiate: Support wasm module instantiation

Runtime:

• Support Wasi-core functions
• Support Ewasm functions

Test:

• Support ERC20 token contracts