gnu.cfg: Added support for dlmopen() (danmar#7151)

Reference: https://www.man7.org/linux/man-pages/man3/dlmopen.3.html

Author: orbitcowboy

cfg/gnu.cfg

@@ -181,6 +181,25 @@
       <strz/>
     </arg>
   </function>
+  <!-- see https://www.man7.org/linux/man-pages/man3/dlmopen.3.html -->
+  <!-- void *dlmopen(Lmid_t lmid, const char *filename, int flags); -->
+  <function name="dlmopen">
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <returnValue type="void*"/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-uninit/>
+      <strz/>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
   <!-- https://gcc.gnu.org/onlinedocs/gcc-6.2.0/gcc/Alignment.html -->
   <!-- __alignof__ is used like sizeof -->
   <!-- Declaration for this GNU compiler extension could look like this: -->