按推荐建议，继续执行

结论：已接入 LinuxCNC NURBS G5 canonical 边界事件记录，并新增 G5.2、G5.3 回归 fixture；原生 probe 验证通过。

wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_minimal_runtime.cpp

@@ -452,7 +452,25 @@ int GET_EXTERNAL_AXIS_MASK() { return 7; }
 int GET_EXTERNAL_OFFSET_APPLIED() { return 0; }
 EmcPose GET_EXTERNAL_OFFSETS() { return {{0, 0, 0}, 0, 0, 0, 0, 0, 0}; }
 
-void NURBS_G5_FEED(int, const std::vector<NURBS_CONTROL_POINT> &, unsigned int, CANON_PLANE) {}
+void NURBS_G5_FEED(int lineno,
+                   const std::vector<NURBS_CONTROL_POINT> &control_points,
+                   unsigned int order,
+                   CANON_PLANE plane)
+{
+    std::ostringstream oss;
+    oss << "NURBS_G5_FEED line=" << lineno
+        << " order=" << order
+        << " plane=" << static_cast<int>(plane)
+        << " points=" << control_points.size();
+    for (std::size_t index = 0; index < control_points.size(); ++index) {
+        const auto &point = control_points[index];
+        oss << " p" << index
+            << "=(" << point.NURBS_X
+            << "," << point.NURBS_Y
+            << "," << point.NURBS_W << ")";
+    }
+    standalone::push_canon_event(oss.str());
+}
 void NURBS_G6_FEED(int, const std::vector<NURBS_G6_CONTROL_POINT> &, unsigned int, double, int, CANON_PLANE) {}
 
 void COMMENT(const char *s)