From 3a478ca33514b13fa2164f87dc85b72447aa74c1 Mon Sep 17 00:00:00 2001
From: cnc <cnc@localhost>
Date: Fri, 5 Jun 2026 10:13:27 +0800
Subject: [PATCH] =?UTF-8?q?=E6=89=A7=E8=A1=8C=20AGENTS=20align-linuxcnc=20?=
 =?UTF-8?q?=E5=8A=A0=E9=80=9F=E8=A7=84=E5=88=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

结论：补强 WASM interp_base 可执行探针，依据 LinuxCNC src/emc/rs274ngc/interp_base.cc 中绝对解释器路径直接 dlopen、相对路径经 EMC2_HOME/lib/linuxcnc 解析后 dlopen 的分支。验证通过：./test-linuxcnc-wasm-interp-base-link.sh、./test-native.sh、./test-linuxcnc-source-link.sh。
---
 core/wasm_shims/interp_base_probe_main.cc | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/core/wasm_shims/interp_base_probe_main.cc b/core/wasm_shims/interp_base_probe_main.cc
index 876f77f..9c02a82 100644
--- a/core/wasm_shims/interp_base_probe_main.cc
+++ b/core/wasm_shims/interp_base_probe_main.cc
@@ -24,6 +24,15 @@ int main() {
         return 6;
     }
 
-    InterpBase *interp = interp_from_shlib("nonexistent-interpreter.so");
-    return interp == nullptr ? 0 : 1;
+    // LinuxCNC src/emc/rs274ngc/interp_base.cc uses absolute interpreter
+    // paths directly before calling dlopen().
+    if (interp_from_shlib("/tmp/cnc_sim_missing_absolute_interpreter.so") != nullptr) {
+        return 7;
+    }
+    // Relative interpreter names are resolved through EMC2_HOME/lib/linuxcnc
+    // before the same unavailable dynamic-loading edge is reached.
+    if (interp_from_shlib("nonexistent-interpreter.so") != nullptr) {
+        return 8;
+    }
+    return 0;
 }