OS modules: Add basic procfs support. A module registry that will eventually be used to support lsmod

fs/procfs/Kconfig

@@ -32,6 +32,13 @@ config FS_PROCFS_EXCLUDE_PROCESS
 		This will reduce code space, but then giving access to process info
 		was kinda the whole point of procfs, but hey, whatever.
 
+config FS_PROCFS_EXCLUDE_MODULE
+	bool "Exclude module information"
+	depends on MODULE
+	default n
+	---help---
+		Causes the module information to be excluded from the procfs system.
+
 config FS_PROCFS_EXCLUDE_UPTIME
 	bool "Exclude uptime"
 	default n

fs/procfs/fs_procfs.c

@@ -77,6 +77,7 @@
 
 extern const struct procfs_operations proc_operations;
 extern const struct procfs_operations cpuload_operations;
+extern const struct procfs_operations module_operations;
 extern const struct procfs_operations uptime_operations;
 
 /* This is not good.  These are implemented in other sub-systems.  Having to
@@ -119,6 +120,10 @@ static const struct procfs_entry_s g_procfs_entries[] =
   { "cpuload",          &cpuload_operations },
 #endif
 
+#if defined(CONFIG_MODULE) && !defined(CONFIG_FS_PROCFS_EXCLUDE_MODULE)
+  { "modules",          &module_operations },
+#endif
+
 #if defined(CONFIG_FS_SMARTFS) && !defined(CONFIG_FS_PROCFS_EXCLUDE_SMARTFS)
 //{ "fs/smartfs",       &smartfs_procfsoperations },
   { "fs/smartfs**",     &smartfs_procfsoperations },