Wasmtime GitHub notifications bot (Mar 27 2026 at 17:19): Wasmtime GitHub notifications bot (Mar 27 2026 at 17:19):cfallin opened PR #12856 from cfallin:debug-integration-test to bytecodealliance:main:
This PR adds:
An integration-test that runs LLDB against the Wasmtime CLI to verify basic debugging functionality, similar to the existing native-debug tests.
A CI job that runs the above in CI.
Some minor tweaks to the gdbstub debugger design:
- Rather than the initial single-step to get to the first Wasm instruction where module(s) will be instantiated into the store and visible to the debugger, we pre-register modules with the store eagerly. This avoids the slightly hacky flow and also is a preparation step for
wasmtime servedebugging, where we can't single-step into execution eagerly (because execution doesn't start at all until an HTTP request arrives).- Add a separate message-printing path for "debugger info messages", allowing us to print the "debugger is listening on <PORT>" message without inheriting stderr for the whole debugger component environment. This message is necessary for the above integration test (it parses the message to determine when the debuggee is ready).
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Wasmtime GitHub notifications bot (Mar 27 2026 at 17:19):cfallin requested fitzgen for a review on PR #12856.
Wasmtime GitHub notifications bot (Mar 27 2026 at 17:19):cfallin requested wasmtime-core-reviewers for a review on PR #12856.
Wasmtime GitHub notifications bot (Mar 27 2026 at 17:19):cfallin requested wasmtime-default-reviewers for a review on PR #12856.
Wasmtime GitHub notifications bot (Mar 27 2026 at 17:28):cfallin updated PR #12856.
Wasmtime GitHub notifications bot (Mar 27 2026 at 19:37):fitzgen submitted PR review:
Nice!
Wasmtime GitHub notifications bot (Mar 27 2026 at 19:38):fitzgen added PR #12856 Debugging: add integration test with LLDB and some minor tweaks. to the merge queue
Wasmtime GitHub notifications bot (Mar 27 2026 at 20:01):fitzgen merged PR #12856.
Wasmtime GitHub notifications bot (Mar 27 2026 at 20:01):fitzgen removed PR #12856 Debugging: add integration test with LLDB and some minor tweaks. from the merge queue
Last updated: Apr 13 2026 at 00:25 UTC