From 23a4679c282765011b6f6f700028476d1e12411f Mon Sep 17 00:00:00 2001
From: cnc <cnc@localhost>
Date: Sat, 6 Jun 2026 05:08:00 +0800
Subject: [PATCH] =?UTF-8?q?=E9=AA=8C=E8=AF=81=20tooldata=20NML=20=E9=9D=9E?=
 =?UTF-8?q?=E7=A9=BA=E8=A1=A8=E6=B3=A8=E5=86=8C=E8=B7=AF=E5=BE=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 core/wasm_shims/tooldata/tooldata_probe_main.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/core/wasm_shims/tooldata/tooldata_probe_main.cc b/core/wasm_shims/tooldata/tooldata_probe_main.cc
index 33b630c..81600c7 100644
--- a/core/wasm_shims/tooldata/tooldata_probe_main.cc
+++ b/core/wasm_shims/tooldata/tooldata_probe_main.cc
@@ -224,6 +224,12 @@ int main() {
     }
     alignas(EMC_TOOL_STAT) unsigned char toolstat_storage[sizeof(EMC_TOOL_STAT)] = {};
     auto *toolstat = reinterpret_cast<EMC_TOOL_STAT *>(toolstat_storage);
+    // LinuxCNC src/emc/tooldata/tooldata_nml.cc accepts a non-null table
+    // pointer before NML-backed tooldata operations can use it.
+    CANON_TOOL_TABLE nml_tool_table[CANON_POCKETS_MAX] = {};
+    if (tool_nml_register(nml_tool_table) != 0) {
+        return 77;
+    }
     if (tool_mmap_creator(toolstat, 1) != 0) {
         return 15;
     }