Wasmtime GitHub notifications bot (Mar 13 2026 at 20:30): Wasmtime GitHub notifications bot (Mar 13 2026 at 20:30):cfallin opened issue #12777:
The "MVP release" of the user-facing guest-debugging feature in Wasmtime is pretty close now, and requires:
- [x] #12756: the environment in which debug components run
- [ ] #12771: the built-in gdbstub component, usable via
wasmtime run -g- [ ] webassembly/wasi-sdk#614 and corresponding release: a release of wasi-sdk with LLDB containing all necessary features
- [ ] update documentation to describe the guest-debugging flow
Post-MVP we have the following functionality queued up in some order:
- [ ] #12776: debugging under
wasmtime serve- [ ] #12188: memory watchpoints
- [ ] "mutable debugging": the ability to inject calls, force early returns, and update locals/operand-stack values
- several levels here; the last two don't have gdbstub commands and aren't really necessary to change source-level locals in debug/non-opt Wasm component builds
- [ ] record/replay and debugging of replayed traces (cc @arjunr2)
- [ ] Store snapshots and reversible debugging
- [ ] debug-adapter DAP world, top-level DAP multiplexer, and adapter components for DWARF and for an interpreter
Wasmtime GitHub notifications bot (Mar 13 2026 at 20:30):cfallin added the wasmtime:debugging label to Issue #12777.
Last updated: Mar 23 2026 at 16:19 UTC