noos: add a Backend info attr

Signed-off-by: Brice Goglin <[email protected]>

Author: bgoglin

hwloc/topology-noos.c

@@ -35,6 +35,7 @@ hwloc_look_noos(struct hwloc_backend *backend, struct hwloc_disc_status *dstatus
       nbprocs = 1;
     hwloc_alloc_root_sets(topology->levels[0][0]);
     hwloc_setup_pu_level(topology, nbprocs);
+    hwloc_obj_add_info(topology->levels[0][0], "Backend", "noOS");
   }
 
   memsize = hwloc_fallback_memsize();

tests/hwloc/hwloc_backends.c

@@ -78,7 +78,7 @@ int main(void)
   char xmlfile[] = "hwloc_backends.tmpxml.XXXXXX";
   char env[64];
   int xmlbufok = 0, xmlfileok = 0, xmlfilefd;
-  const char *orig_backend_name;
+  const char *orig_backend_name, *backend_name;
   int err;
 
   putenv((char *) "HWLOC_LIBXML_CLEANUP=1");
@@ -257,7 +257,9 @@ int main(void)
   assert(!err);
 #endif
   hwloc_topology_load(topology1);
-  assert(!get_backend_name(topology1)); /* noos doesn't put any Backend info attr */
+  backend_name = get_backend_name(topology1);
+  assert(backend_name);
+  assert(!strcmp(backend_name, "noOS"));
   hwloc_topology_check(topology1);
   assert(hwloc_topology_is_thissystem(topology1));
   hwloc_topology_destroy(topology1);