Units now run exclusively on wasm; the native generated-C++ -> clang -> .so ->
dlopen path and its request-time fallback are removed.
- Dispatch (linux_fastcgi.cpp): the 4 handle_complete branches + the CLI-socket
path route every request through wasm (wasm_ready compiles cold/stale on
demand); a wasm-unavailable unit now yields a clean error page
(fail_wasm_unavailable / render_request_failure) instead of native execution.
compiler_invoke / _cli / _websocket / _serve_http deleted.
- compiler.cpp (-1274): removed the native .so compile (COMPILE_SCRIPT),
load_shared_unit, dlopen/dlsym/dlclose, compiler_load_shared_unit, and the
SharedUnit .so function-pointer fields (on_setup/on_render/on_component/
on_websocket/on_cli/on_once/on_init) in types.h/types.cpp. compile_shared_unit
now builds only the .wasm side-module; the .uce preprocessor/parser front-end
is kept (it emits the C++ the wasm compile consumes).
- unit_call()/component()/once/init now resolve across units through the wasm
host component resolver (uce_host_component_resolve) instead of native dlsym;
configured runtime error pages render through the wasm backend.
- Dropped the WASM_BACKEND_ENABLED feature flag and dead COMPILE_SCRIPT /
COMPILE_WASM_UNITS config; unit ABI freshness tied to UCE_UNIT_ABI_VERSION;
guard against serving a stale .wasm for a deleted source; retired the obsolete
W5 native-vs-wasm toggle script. Docs updated.
Implemented via the pi agent (with 3 delegated sub-reviews); independently
re-verified on the build host: run_cli_tests --include-wasm-kill => 87 passed,
0 failed, 0 skipped.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Dispatch (linux_fastcgi.cpp): route every request through wasm. On a
cold/stale artifact, compile the unit on demand (get_shared_unit, forced) and
serve wasm; native compiler_invoke* remains only as a fallback when wasm
cannot be made ready (compile failure / backend disabled). Applies to the 4
handle_complete branches and the CLI socket path.
- backend.cpp: delete the now-vestigial native-only fallback token gate
(wasm_backend_native_fallback_*), empty since W7d; should_handle now gates on
config + current artifact + healthy worker only.
- check_unit_wasm.py: skip the defense-in-depth llvm-nm allocator scan when
llvm-nm SIGSEGVs on a degenerate-but-valid module (e.g. a unit with no
exported handlers). Fixes site/demo/empty.uce, the last unit that could not
produce a .wasm; forbidden allocator *exports* are still rejected.
A pi-assisted review caught that the compile-freshness check keys off the .so
mtime only, so force_recompile is required to rebuild a missing/stale .wasm; a
unit already cached in-process whose .wasm later vanished still uses native
fallback (closed in W7e stage B). Native execution is otherwise bypassed for
all real traffic.
Verified: scripts/run_cli_tests.sh --include-wasm-kill -> 87 passed, 0 failed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
