Debugging: add debugger support for wasmtime serve.#12859
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cfallin wants to merge 1 commit intobytecodealliance:mainfrom
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Debugging: add debugger support for wasmtime serve.#12859cfallin wants to merge 1 commit intobytecodealliance:mainfrom
wasmtime serve.#12859cfallin wants to merge 1 commit intobytecodealliance:mainfrom
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This adopts a simple solution to bytecodealliance#12776: it takes the "instance reuse" paradigm to the extreme, instantiating exactly one instance and serializing all requests into that one instance. This allows the debugger component to operate on one `Store`, setting breakpoint state and presenting its execution to the attached debugger as a single program execution and minimizing impedance mismatches. This also adds an integration test that runs an existing wasi-http test component under the debugger. Contains a few bugfixes to core debug functionality: - Give unique names to "libraries" (core Wasm modules) reported in the gdbstub server to the debugger; LLDB otherwise deduplicates all the modules named `wasm` into one, and gets confused about base addresses and module indices. - Use core-module-relative PCs, not component-relative PCs, everywhere. With these fixes, setting a breakpoint at `handle` in a wasi-http component and introspecting mid-request works properly.
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This adopts a simple solution to #12776: it takes the "instance reuse" paradigm to the extreme, instantiating exactly one instance and serializing all requests into that one instance. This allows the debugger component to operate on one
Store, setting breakpoint state and presenting its execution to the attached debugger as a single program execution and minimizing impedance mismatches.This also adds an integration test that runs an existing wasi-http test component under the debugger.
Contains a few bugfixes to core debug functionality:
wasminto one, and gets confused about base addresses and module indices.With these fixes, setting a breakpoint at
handlein a wasi-http component and introspecting mid-request works properly.Closes #12776.