尽快推进：收紧RCS打印shim源码锚点

check-linuxcnc-wasm-shims-source-map.sh

@@ -46,7 +46,17 @@ grep -F 'wordexp(basename, &exp_result, 0);' "$linuxcnc_root/src/emc/rs274ngc/rs
 grep -F 'EMC_STAT *emcStatus = new EMC_STAT;' "$linuxcnc_root/src/emc/sai/dummyemcstat.cc" >/dev/null
 grep -F 'NMLmsg::NMLmsg' "$linuxcnc_root/src/libnml/nml/nmlmsg.cc" >/dev/null
 grep -F 'RCS_STAT_MSG::RCS_STAT_MSG' "$linuxcnc_root/src/libnml/nml/stat_msg.cc" >/dev/null
+grep -F 'extern int set_print_rcs_error_info(const char *file, int line);' \
+    "$linuxcnc_root/src/libnml/rcs/rcs_print.hh" >/dev/null
+grep -F 'extern int print_rcs_error_new(const char *_fmt, ...)' \
+    "$linuxcnc_root/src/libnml/rcs/rcs_print.hh" >/dev/null
+grep -F '#define rcs_print_error set_print_rcs_error_info( __FILE__, __LINE__); print_rcs_error_new' \
+    "$linuxcnc_root/src/libnml/rcs/rcs_print.hh" >/dev/null
+grep -F 'int set_print_rcs_error_info(const char *file, int line)' \
+    "$linuxcnc_root/src/libnml/rcs/rcs_print.cc" >/dev/null
 grep -F 'print_rcs_error_new' "$linuxcnc_root/src/libnml/rcs/rcs_print.cc" >/dev/null
+grep -F 'retval = rcs_vprint(_fmt, args, 1);' \
+    "$linuxcnc_root/src/libnml/rcs/rcs_print.cc" >/dev/null
 grep -F 'rtapi_snprintf' "$linuxcnc_root/src/rtapi/uspace_common.h" >/dev/null
 grep -F 'class PythonPlugin' "$linuxcnc_root/src/emc/pythonplugin/python_plugin.hh" >/dev/null
 grep -F 'PLUGIN_PYTHON_NOT_INITIALIZED = -12,' "$linuxcnc_root/src/emc/pythonplugin/python_plugin.hh" >/dev/null
@@ -107,7 +117,10 @@ expected_shims = {
         "src/emc/rs274ngc/gcodemodule.cc",
         "src/emc/pythonplugin/python_plugin.cc",
     ],
-    "core/wasm_shims/rcs_print_shim.cc": ["src/libnml/rcs/rcs_print.cc"],
+    "core/wasm_shims/rcs_print_shim.cc": [
+        "src/libnml/rcs/rcs_print.cc",
+        "src/libnml/rcs/rcs_print.hh",
+    ],
     "core/wasm_shims/rtapi_compat.cc": [
         "src/rtapi/uspace_common.h",
         "src/rtapi/rtapi.h",
@@ -201,6 +214,15 @@ for needle in [
     if needle not in python_c_api_shim:
         raise SystemExit(f"Python C API shim missing symbol boundary: {needle}")
 
+rcs_print_shim = Path("core/wasm_shims/rcs_print_shim.cc").read_text(encoding="utf-8")
+for needle in [
+    "set_print_rcs_error_info",
+    "print_rcs_error_new",
+    "std::vfprintf(stderr, format, args)",
+]:
+    if needle not in rcs_print_shim:
+        raise SystemExit(f"RCS print shim missing split print-error boundary: {needle}")
+
 for phrase in [
     "must not add CNC behavior",
     "must not expand the temporary smoke parser",
@@ -217,6 +239,8 @@ for phrase in [
     "must not execute `bp::exec`, `bp::exec_file`, or",
     "inactive-DB return values",
     "negative-status short-circuit behavior",
+    "LinuxCNC `rcs_print_error` split entry points",
+    "without native print routing",
     "./check-linuxcnc-wasm-shims-source-map.sh",
     "does not interpret G-code",
 ]:

docs/linuxcnc-wasm-shims-source-map.md

@@ -20,7 +20,7 @@ only; it must not add CNC behavior and must not expand the temporary smoke parse
 | `core/wasm_shims/linuxcnc_runtime_shim.cc` | `src/emc/rs274ngc/gcodemodule.cc`, `src/emc/task/emctaskmain.cc`, `src/emc/task/taskclass.cc`, `src/emc/rs274ngc/interp_namedparams.cc`, `include/hal.h`, `src/hal/hal_lib.c`, `src/emc/rs274ngc/rs274ngc_pre.cc` | Keeps preview/task, builtin Python module, unavailable HAL lookup, and `wordexp()` edges compile-safe. |
 | `core/wasm_shims/nml_status_shim.cc` | `src/libnml/nml/nmlmsg.cc`, `src/libnml/nml/stat_msg.cc` | Provides NML status constructors needed by source-linked EMC status objects. |
 | `core/wasm_shims/python_c_api_shim.cc` | `src/emc/rs274ngc/interp_python.cc`, `src/emc/rs274ngc/interp_namedparams.cc`, `src/emc/rs274ngc/gcodemodule.cc`, `src/emc/pythonplugin/python_plugin.cc` | Satisfies Python C API symbols while Python/Boost.Python remap paths remain tracked blockers. |
-| `core/wasm_shims/rcs_print_shim.cc` | `src/libnml/rcs/rcs_print.cc` | Provides LinuxCNC RCS print diagnostics used by NML validation. |
+| `core/wasm_shims/rcs_print_shim.cc` | `src/libnml/rcs/rcs_print.cc`, `src/libnml/rcs/rcs_print.hh` | Provides the LinuxCNC `rcs_print_error` split entry points used by NML validation without native print routing. |
 | `core/wasm_shims/rtapi_compat.cc` | `src/rtapi/uspace_common.h`, `src/rtapi/rtapi.h` | Provides userspace RTAPI formatting declarations used by RS274/NML code. |
 | `core/wasm_shims/tooldata/tooldata_mmap_backend.cc` | `src/emc/tooldata/tooldata_mmap.cc` | Replaces native mmap storage with an in-memory WASM-safe backend for probes. |
 | `core/wasm_shims/tooldata/tooldata_runtime_stubs.cc` | `src/emc/tooldata/tooldata_nml.cc`, `src/emc/tooldata/tooldata_db.cc` | Satisfies NML and external tool database entry points without native services, preserving inactive-DB return values. |