按规划继续工作

结论：补齐 LinuxCNC tooldata_common.cc 随机换刀器 load/save 验证边界，WASM/SDK/OPFS 只透传 random-toolchanger 配置；native、WASM、OPFS 和浏览器 smoke 验证已通过。

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

@@ -172,6 +172,13 @@ void append_tool_table_state(std::ostringstream &output)
     if (standalone::get_tool_entry(&tool, 2) == 0) {
         append_tool_entry(output, "tool_2", tool);
     }
+    for (int idx = 0; idx < CANON_POCKETS_MAX; ++idx) {
+        if (standalone::get_tool_entry(&tool, idx) == 0 && tool.toolno != -1) {
+            std::ostringstream prefix;
+            prefix << "tool_pocket_" << idx;
+            append_tool_entry(output, prefix.str().c_str(), tool);
+        }
+    }
     output << "tool_index_for_tool_2=" << standalone::find_tool_index_for_tool(2) << "\n";
 }
 
@@ -196,6 +203,20 @@ void apply_parameter_assignments(Interp &interp, const char *assignments)
     }
 }
 
+char *load_tool_table_with_mode(const char *path, bool random_tool_changer)
+{
+    standalone::reset_tool_adapter();
+    tooldata_init(random_tool_changer);
+    tooldata_set_db(DB_NOTUSED);
+
+    std::ostringstream output;
+    output << "tooldata_random_toolchanger=" << (random_tool_changer ? 1 : 0) << "\n";
+    const int rc = tooldata_load(path);
+    output << "tooldata_load=" << rc << "\n";
+    append_tool_table_state(output);
+    return copy_result(output.str());
+}
+
 }  // namespace
 
 extern "C" {
@@ -350,15 +371,13 @@ char *lcinterp_save_parameters(const char *path, const char *assignments)
 EMSCRIPTEN_KEEPALIVE
 char *lcinterp_load_tool_table(const char *path)
 {
-    standalone::reset_tool_adapter();
-    tooldata_init(false);
-    tooldata_set_db(DB_NOTUSED);
+    return load_tool_table_with_mode(path, false);
+}
 
-    std::ostringstream output;
-    const int rc = tooldata_load(path);
-    output << "tooldata_load=" << rc << "\n";
-    append_tool_table_state(output);
-    return copy_result(output.str());
+EMSCRIPTEN_KEEPALIVE
+char *lcinterp_load_tool_table_random(const char *path)
+{
+    return load_tool_table_with_mode(path, true);
 }
 
 EMSCRIPTEN_KEEPALIVE

wasm-port/runtime/opfs/linuxcnc-machine-session-bridge.js

@@ -45,6 +45,7 @@ export async function loadMachineSessionFromOpfs(interp, machineId, options = {}
     storage: options.storage,
     opfsPath: paths.toolTableOpfsPath,
     wasmPath: paths.toolTableWasmPath,
+    randomToolChanger: options.randomToolChanger === true,
   });
 
   return {

wasm-port/runtime/opfs/linuxcnc-tool-table-bridge.js

@@ -25,7 +25,9 @@ export async function loadMachineToolTableFromOpfs(interp, machineId, options =
   return {
     opfsPath,
     wasmPath,
-    result: interp.loadToolTable(wasmPath),
+    result: interp.loadToolTable(wasmPath, {
+      randomToolChanger: options.randomToolChanger === true,
+    }),
   };
 }
 

wasm-port/runtime/sdk/README.md

@@ -40,7 +40,11 @@ vendored LinuxCNC RS274NGC sources and exposes:
 - `runFileWithIni(path, iniPath)`
 - `restoreParameters(path)`
 - `saveParameters(path, values)`
-- `loadToolTable(path)`
+- `loadToolTable(path, options)`
 - `saveToolTable(path)`
 - `writeTextFile(path, text)`
 - `readTextFile(path)`
+
+`loadToolTable()` accepts `{ randomToolChanger: true }` to select the
+LinuxCNC random-toolchanger branch before calling vendored
+`tooldata_load()`. The SDK only forwards that runtime boundary flag.

wasm-port/runtime/sdk/src/linuxcnc-interp.js

@@ -85,8 +85,11 @@ export async function createLinuxCncInterpSdk(moduleOptions = {}) {
       return callStringResult(mod, "lcinterp_save_parameters", path, assignments);
     },
 
-    loadToolTable(path) {
-      return callStringResult(mod, "lcinterp_load_tool_table", path);
+    loadToolTable(path, options = {}) {
+      const functionName = options.randomToolChanger
+        ? "lcinterp_load_tool_table_random"
+        : "lcinterp_load_tool_table";
+      return callStringResult(mod, functionName, path);
     },
 
     saveToolTable(path) {