gnu.cfg: Added support for xmalloc() and xcalloc(). Reference: https://gcc.gnu.org/onlinedocs/libiberty/Functions.html

cfg/gnu.cfg

@@ -8,6 +8,35 @@
     <alloc init="true" arg="1">asprintf</alloc>
     <dealloc>free</dealloc>
   </memory>
+  <memory>
+    <alloc init="false">xmalloc</alloc>
+    <alloc init="true">xcalloc</alloc>
+    <dealloc>free</dealloc>
+  </memory>
+  <!-- void * xmalloc(size_t size); -->
+  <function name="xmalloc">
+    <use-retval/>
+    <returnValue type="void *"/>
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+  </function>
+  <!-- void * xcalloc(size_t nitems, size_t size); -->
+  <function name="xcalloc">
+    <use-retval/>
+    <noreturn>false</noreturn>
+    <returnValue type="void *"/>
+    <arg nr="1">
+      <not-uninit/>
+      <valid>1:</valid>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+  </function>
   <!-- http://man7.org/linux/man-pages/man3/asprintf.3.html -->
   <!-- int asprintf(char **strp, const char *fmt, ...); -->
   <function name="asprintf">