按提示词结论补 wasm 探针源依据锁

build-linuxcnc-wasm-link-probe.sh

@@ -3,6 +3,9 @@ set -euo pipefail
 
 cd "$(dirname "$0")"
 
+# LinuxCNC source basis: link probe modes reuse wasm-safe objects built from
+# linuxcnc-rs274-wasm-source-files.txt and add only a narrow probe main that
+# asserts LinuxCNC rs274ngc_pre/runtime symbols stay linked.
 usage() {
     echo "usage: $0 --mode rs274ngc-pre|runtime [manifest]" >&2
 }
@@ -82,6 +85,9 @@ target_name=rs274ngc_pre_probe
 common_flag_output=$(LINUXCNC_ROOT="$linuxcnc_root" ./list-linuxcnc-wasm-common-cxxflags.sh --profile core20-sections)
 mapfile -t common_flags <<<"$common_flag_output"
 case "$mode" in
+    rs274ngc-pre)
+        grep -F 'LinuxCNC source basis: src/emc/rs274ngc/rs274ngc_pre.cc provides' "$main_source" >/dev/null
+        ;;
     runtime)
         object_mode=runtime
         main_source=core/wasm_shims/cnc_sim_wasm_runtime_probe_main.cc