Properly implement liballoc_free ()

libmsl/alloc/liballoc.c

@@ -6,7 +6,7 @@
 
 static int liballoc_mutex;
 static uintptr_t liballoc_map_base = PROC_MAP_BASE;
-static int mem_rid_base = 10000;
+static int mem_rid_base = 1000000;
 
 void liballoc_init (void) { liballoc_mutex = proc_create_resource_mutex (100, RV_PRIVATE); }
 
@@ -36,7 +36,20 @@ void* liballoc_alloc (int pages) {
   return (void*)old_base;
 }
 
-int liballoc_free (void* ptr, int pages) { return 0; }
+int liballoc_free (void* ptr, int pages) {
+  int res;
+  uintptr_t out_paddr;
+
+  res = proc_translate_v2p ((uintptr_t)ptr, &out_paddr);
+  if (res < 0)
+    return res;
+
+  res = proc_unmap ((uintptr_t)ptr, pages);
+  if (res < 0)
+    return res;
+
+  return proc_mem_unref (out_paddr, pages);
+}
 
 /**  Durand's Ridiculously Amazing Super Duper Memory functions.  */