spike: validate WASM phase 0

spikes/wasm-phase0/build_loader.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+# Phase 0: build the minimal loader against the WAMR build at /opt/wamr.
+# Runs on k-uce.
+set -e
+cd "$(dirname "$0")"
+
+# Runtime: Wasmtime C API. (WAMR was evaluated first per WASM-PROPOSAL §9 but
+# its wasm-c-api ignores imported memories/tables — see FINDINGS.md.)
+WASMTIME=/opt/wasmtime
+OUT=/tmp/uce/wasm-phase0
+
+clang++ -std=c++17 -O1 -g loader.cpp -o "$OUT/loader" \
+	-I"$WASMTIME/include" \
+	-L"$WASMTIME/lib" -lwasmtime -Wl,-rpath,"$WASMTIME/lib" \
+	-lpthread -lm -ldl
+
+echo built: "$OUT/loader"