按推荐建议，继续执行

结论：将 standalone harness 使用的剩余 rs274ngc 解释器核心源文件纳入 vendored LinuxCNC 直接编译探针，验证迁移边界继续来源于 LinuxCNC 源程序。

wasm-port/docs/porting-steps-standalone.md

@@ -450,6 +450,15 @@ Current verified progress:
   `interp_execute.cc`. These probes keep the next interpreter-core migration
   work focused on LinuxCNC source entry points and expose missing standalone
   runtime shims before wrapper behavior is expanded.
+- The direct source compile probes now cover the remaining vendored
+  `rs274ngc` interpreter core files used by the standalone harness:
+  `modal_state.cc`, `interp_array.cc`, `interp_internal.cc`,
+  `interp_arc.cc`, `interp_inverse.cc`, `interp_cycles.cc`,
+  `interp_g7x.cc`, `interp_queue.cc`, `interp_find.cc`,
+  `interp_namedparams.cc`, `interp_write.cc`, `interp_o_word.cc`, and
+  `rs274ngc_pre.cc`. `rs274ngc_pre.cc` is compiled with the existing
+  standalone `UNIT_TEST`/`LINUXCNC_STANDALONE_USE_RS274_PRE_STATE` boundary
+  that isolates Python runtime integration from the browser simulation core.
 
 ## Phase 4: Port INI Parsing Without Editing Upstream
 

wasm-port/tests/native/verify_native_probes.sh

@@ -45,6 +45,19 @@ check_exitcode linuxcnc_interp_convert_source_probe
 check_exitcode linuxcnc_interp_read_source_probe
 check_exitcode linuxcnc_interp_check_source_probe
 check_exitcode linuxcnc_interp_execute_source_probe
+check_exitcode linuxcnc_modal_state_source_probe
+check_exitcode linuxcnc_interp_array_source_probe
+check_exitcode linuxcnc_interp_internal_source_probe
+check_exitcode linuxcnc_interp_arc_source_probe
+check_exitcode linuxcnc_interp_inverse_source_probe
+check_exitcode linuxcnc_interp_cycles_source_probe
+check_exitcode linuxcnc_interp_g7x_source_probe
+check_exitcode linuxcnc_interp_queue_source_probe
+check_exitcode linuxcnc_interp_find_source_probe
+check_exitcode linuxcnc_interp_namedparams_source_probe
+check_exitcode linuxcnc_interp_write_source_probe
+check_exitcode linuxcnc_interp_o_word_source_probe
+check_exitcode linuxcnc_rs274ngc_pre_source_probe
 
 NAMEDPARAM_STDOUT="$BUILD_DIR/linuxcnc_namedparam_harness.run.stdout.log"
 grep -Fq "init_named_parameters=0" "$NAMEDPARAM_STDOUT"

wasm-port/tools/build_native_probes.sh

@@ -477,4 +477,82 @@ build_object_target \
   "$VENDOR_DIR/src/emc/rs274ngc/interp_execute.cc" \
   COMMON_FLAGS
 
+build_object_target \
+  linuxcnc_modal_state_source_probe \
+  "$BUILD_DIR/linuxcnc_modal_state_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/modal_state.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_array_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_array_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_array.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_internal_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_internal_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_internal.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_arc_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_arc_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_arc.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_inverse_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_inverse_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_inverse.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_cycles_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_cycles_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_cycles.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_g7x_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_g7x_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_g7x.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_queue_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_queue_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_queue.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_find_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_find_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_find.cc" \
+  COMMON_FLAGS
+
+build_object_target \
+  linuxcnc_interp_namedparams_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_namedparams_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_namedparams.cc" \
+  COMMON_INI_FLAGS
+
+build_object_target \
+  linuxcnc_interp_write_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_write_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_write.cc" \
+  COMMON_INI_FLAGS
+
+build_object_target \
+  linuxcnc_interp_o_word_source_probe \
+  "$BUILD_DIR/linuxcnc_interp_o_word_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/interp_o_word.cc" \
+  COMMON_INI_FLAGS
+
+build_object_target \
+  linuxcnc_rs274ngc_pre_source_probe \
+  "$BUILD_DIR/linuxcnc_rs274ngc_pre_source_probe.o" \
+  "$VENDOR_DIR/src/emc/rs274ngc/rs274ngc_pre.cc" \
+  MINIMAL_FLAGS
+
 echo "native probes complete"