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wasm-micro-runtime/doc/tired_support.md
liang.he@intel.com d1e678c621 Enhance security guidelines for identifying vulnerabilities 
It incudes a tired-support-list
2025-09-01 02:58:15 +00:00

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# Tired Supported
**Tier definitions**
- **A — Production Ready:** fully tested and stable.
- **B — Almost Production Ready:** partially tested; close to production.
- **C — Experimental / Not Production Ready:** unfinished or volatile.
## Architecture Support
| Architecture | Tier |
| ------------ | ----- |
| **x86-64** | **A** |
| **x86-32** | **A** |
| AArch64 | B |
| ARC | B[^1] |
| ARM | B |
| RISCV32 | B |
| RISCV64 | B |
| THUMB | B |
| MIPS | C |
| XTENSA | C |
[^1]: will upgrade to **A** after further testing and validation.
## OS / Platform Support
| Platform | Tier |
| ------------------ | ----- |
| **NuttX** | **A** |
| **Ubuntu** | **A** |
| Android | B |
| macOS | B |
| Windows | B |
| Zephyr | B[^2] |
| AliOS-Things | C |
| Cosmopolitan | C |
| ESP-IDF (FreeRTOS) | C |
| FreeBSD | C |
| iOS | C |
| RT-Thread | C |
| RIOT | C |
| VxWorks | C |
[^2]: will upgrade to **A** after further testing and validation.
## WebAssembly Proposal Support
> Defaults below reflect the sample build configuration you provided (e.g., `WAMR_BUILD_*` values), not necessarily the release bundle. “Always-on” items are part of WAMR’s baseline.
| WASM Proposal / Extension | Tier | Default |
| -------------------------------------- | ----------- | ------- |
| **Bulk Memory** | A | **On** |
| **Extended Constant Expressions** | A | Off |
| **Import/Export of Mutable Globals** | A | **On** |
| **Memory64** | A | Off |
| **Multi-value** | A | **On** |
| **Non-trapping float-to-int** | A | **On** |
| **Reference Types** | A | **On** |
| **Shared Memory (Threads)** | A | Off |
| **SIMD (128-bit)** | A | **On** |
| **Sign-extension Operators** | A | **On** |
| **Tail Calls** | A | Off |
| GC (Garbage Collection) | B | Off |
| Stringref | B | Off |
| Multi-memory | C | Off |
| Legacy Exception Handling | C | Off |
| Branch Hinting | Unsupported | |
| Custom Annotation Syntax (text format) | Unsupported | |
| Exception Handling (new spec) | Unsupported | |
| JS String Builtins | Unsupported | |
| Relaxed SIMD | Unsupported | |
# WAMR-Specific Feature Support
> Defaults below mirror your sample build output (e.g., “enabled/disabled” lines) and common WAMR options.
| WAMR Feature | Tier | Default |
| --------------------------------- | ---- | ------- |
| **AoT (wamrc)** | A | **On** |
| **AOT intrinsics** | A | **On** |
| **Fast Interpreter** | A | **Off** |
| **Interpreter (classic)** | A | **On** |
| **Libc builtin** | A | **On** |
| **Libc WASI** | A | **On** |
| **Quick AOT/JIT entries** | A | **On** |
| **Shrunk memory** | A | **On** |
| **Wakeup of blocking operations** | A | **On** |
| **WASM C API** | A | **On** |
| Fast JIT (tier-0) | B | Off |
| LLVM ORC JIT (“lazy” JIT) | B | Off |
| Memory profiling | B | Off |
| Module instance context | B | On |
| Multi-module | B | Off |
| Perf profiling | B | Off |
| Pthread | B | Off |
| Shared heap | B | Off |
| Tier-up (Fast JIT → LLVM JIT) | B | Off |
| WASI threads | B | Off |
| WASI-NN (neural network APIs) | B | Off |
| Debug AOT | C | Off |
| Debug Interpreter | B | Off |
---
# Appendix: All compilation flags
| Compilation flags | Tired | Default | on Ubuntu |
| ------------------------------------------- | ----- | ------- | --------- |
| WAMR_APP_THREAD_STACK_SIZE_MAX | B | ND[^3] | |
| WAMR_BH_LOG | B | ND | |
| WAMR_BH_VPRINTF | B | ND | |
| WAMR_BUILD_ALLOC_WITH_USAGE | B | ND | |
| WAMR_BUILD_ALLOC_WITH_USER_DATA | B | ND | |
| WAMR_BUILD_AOT | A | ND | 1 |
| WAMR_BUILD_AOT_INTRINSICS | A | 1[^4] | |
| WAMR_BUILD_AOT_STACK_FRAME | A | ND | |
| WAMR_BUILD_AOT_VALIDATOR | B | ND | |
| WAMR_BUILD_BULK_MEMORY | A | 1 | |
| WAMR_BUILD_COPY_CALL_STACK | B | ND | |
| WAMR_BUILD_CUSTOM_NAME_SECTION | B | ND | |
| WAMR_BUILD_DEBUG_AOT | C | ND | |
| WAMR_BUILD_DEBUG_INTERP | B | ND | |
| WAMR_BUILD_DUMP_CALL_STACK | B | ND | |
| WAMR_BUILD_DYNAMIC_AOT_DEBUG | C | ND | |
| WAMR_BUILD_EXCE_HANDLING | C | 0 | |
| WAMR_BUILD_EXTENDED_CONST_EXPR | A | 0 | |
| WAMR_BUILD_FAST_INTERP | A | ND | 1 |
| WAMR_BUILD_FAST_JIT | B | ND | |
| WAMR_BUILD_FAST_JIT_DUMP | B | ND | |
| WAMR_BUILD_GC | B | 0 | |
| WAMR_BUILD_GC_HEAP_VERIFY | B | ND | |
| WAMR_BUILD_GLOBAL_HEAP_POOL | A | ND | |
| WAMR_BUILD_GLOBAL_HEAP_SIZE | A | ND | |
| WAMR_BUILD_INSTRUCTION_METERING | C | ND | |
| WAMR_BUILD_INTERP | A | ND | 1 |
| WAMR_BUILD_INVOKE_NATIVE_GENERAL | B | ND | |
| WAMR_BUILD_JIT | B | ND | |
| WAMR_BUILD_LAZY_JIT | B | 1[^5] | |
| WAMR_BUILD_LIBC_BUILTIN | A | ND | 1 |
| WAMR_BUILD_LIBC_EMCC | C | ND | |
| WAMR_BUILD_LIBC_UVWASI | C | ND | |
| WAMR_BUILD_LIBC_WASI | A | ND | 1 |
| WAMR_BUILD_LIB_PTHREAD | B | ND | |
| WAMR_BUILD_LIB_PTHREAD_SEMAPHORE | B | ND | |
| WAMR_BUILD_LIB_RATS | C | ND | |
| WAMR_BUILD_LIB_WASI_THREADS | B | ND | |
| WAMR_BUILD_LINUX_PERF | B | ND | |
| WAMR_BUILD_LOAD_CUSTOM_SECTION | A | ND | |
| WAMR_BUILD_MEMORY64 | A | 0 | |
| WAMR_BUILD_MEMORY_PROFILING | B | ND | |
| WAMR_BUILD_MINI_LOADER | B | ND | |
| WAMR_BUILD_MODULE_INST_CONTEXT | B | ND | 1 |
| WAMR_BUILD_MULTI_MEMORY | C | 0 | |
| WAMR_BUILD_MULTI_MODULE | B | ND | |
| WAMR_BUILD_PERF_PROFILING | B | ND | |
| WAMR_BUILD_PLATFORM | - | ND | linux |
| WAMR_BUILD_QUICK_AOT_ENTRY | A | 1[^6] | |
| WAMR_BUILD_REF_TYPES | A | ND | 1 |
| WAMR_BUILD_SANITIZER | B | ND | |
| WAMR_BUILD_SGX_IPFS | C | ND | |
| WAMR_BUILD_SHARED_HEAP | A | ND | |
| WAMR_BUILD_SHARED_MEMORY | A | 0 | 1 |
| WAMR_BUILD_SHRUNK_MEMORY | A | ND | 1 |
| WAMR_BUILD_SIMD | A | ND | 1 |
| WAMR_BUILD_SIMDE | A | ND | 1 |
| WAMR_BUILD_SPEC_TEST | A | ND | |
| WAMR_BUILD_STACK_GUARD_SIZE | B | ND | |
| WAMR_BUILD_STATIC_PGO | B | ND | |
| WAMR_BUILD_STRINGREF | B | 0 | |
| WAMR_BUILD_TAIL_CALL | A | 0 | 1 |
| WAMR_BUILD_TARGET | - | ND | X86-64 |
| WAMR_BUILD_THREAD_MGR | A | ND | |
| WAMR_BUILD_WAMR_COMPILER | A | ND | |
| WAMR_BUILD_WASI_EPHEMERAL_NN | B | ND | |
| WAMR_BUILD_WASI_NN | B | ND | |
| WAMR_BUILD_WASI_NN_ENABLE_EXTERNAL_DELEGATE | B | ND | |
| WAMR_BUILD_WASI_NN_ENABLE_GPU | B | ND | |
| WAMR_BUILD_WASI_NN_EXTERNAL_DELEGATE_PATH | B | ND | |
| WAMR_BUILD_WASI_NN_LLAMACPP | B | ND | |
| WAMR_BUILD_WASI_NN_ONNX | B | ND | |
| WAMR_BUILD_WASI_NN_OPENVINO | B | ND | |
| WAMR_BUILD_WASI_NN_TFLITE | B | ND | |
| WAMR_BUILD_WASI_TEST | B | ND | |
| WAMR_BUILD_WASM_CACHE | B | ND | |
| WAMR_CONFIGURABLE_BOUNDS_CHECKS | C | ND | |
| WAMR_DISABLE_APP_ENTRY | A | ND | |
| WAMR_DISABLE_HW_BOUND_CHECK | A | ND | |
| WAMR_DISABLE_STACK_HW_BOUND_CHECK | A | ND | |
| WAMR_DISABLE_WAKEUP_BLOCKING_OP | B | ND | |
| WAMR_DISABLE_WRITE_GS_BASE | B | ND | |
| WAMR_TEST_GC | B | ND | |
[^3]: _ND_ represents _not defined_
[^4]: active if `WAMR_BUILD_AOT` is 1
[^5]: active if `WAMR_BUILD_FAST_JIT` or `WAMR_BUILD_JIT1` is 1
[^6]: active if `WAMR_BUILD_AOT` or `WAMR_BUILD_JIT` is 1
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