Whamm

Install and operate whamm!, the WebAssembly bytecode instrumentation tool. Use when instrumenting or profiling a .wasm binary, counting opcodes or function calls, choosing between bytecode-rewriting and engine-support (wei) injection strategies, or running an instrumented module with wasmtime or Wizard.

Guide for the whamm! `.mm` monitor DSL — the DTrace-inspired language for WebAssembly instrumentation. Use when writing or reading `.mm` scripts, composing match rules, choosing variable kinds, writing predicates, or understanding bound variables at a probe site.