diff --git a/components/libdl/dlclose.c b/components/libdl/dlclose.c
index e040a2139675e94c8b8a077b8035516067bec0b2..854dd6a032cc3322076815dac50d3135337430c0 100644
--- a/components/libdl/dlclose.c
+++ b/components/libdl/dlclose.c
@@ -15,7 +15,7 @@
 #include <rtthread.h>
 #include <rtm.h>
 
-int rt_dlclose (void *handle)
+int dlclose (void *handle)
 {
 	rt_module_t module;
 	
@@ -32,5 +32,5 @@ int rt_dlclose (void *handle)
 	return RT_TRUE;
 }
 
-RTM_EXPORT(rt_dlclose)
+RTM_EXPORT(dlclose)
 
diff --git a/components/libdl/dlerror.c b/components/libdl/dlerror.c
index a4728a8a88df2f5479bc5e257b052173b579c8d4..375bd1de3f759e9ced2221f87cce06937f26240d 100644
--- a/components/libdl/dlerror.c
+++ b/components/libdl/dlerror.c
@@ -15,10 +15,10 @@
 #include <rtthread.h>
 #include <rtm.h>
 
-const char *rt_dlerror(void)
+const char *dlerror(void)
 {
 	return "TODO";
 }
 
-RTM_EXPORT(rt_dlerror)
+RTM_EXPORT(dlerror)
 
diff --git a/components/libdl/dlfcn.h b/components/libdl/dlfcn.h
index eea1d02d4bd02e20be84fe50cde39d8c87037eeb..0569dedd1be4db48c348f1fcab97b09ffef4710e 100644
--- a/components/libdl/dlfcn.h
+++ b/components/libdl/dlfcn.h
@@ -10,7 +10,7 @@
 #define RTLD_DEFAULT    ((void*)1)
 #define RTLD_NEXT       ((void*)2)
 
-void *rt_dlopen (const char *filename, int flag);
-const char *rt_dlerror(void);
-void *rt_dlsym(void *handle, const char *symbol);
-int rt_dlclose (void *handle);
+void *dlopen (const char *filename, int flag);
+const char *dlerror(void);
+void *dlsym(void *handle, const char *symbol);
+int dlclose (void *handle);
diff --git a/components/libdl/dlopen.c b/components/libdl/dlopen.c
index d392a945230a32d3640b3e7676323f9a8dba9f76..00405523e497fba5f293490b0ed61f6367ae8635 100644
--- a/components/libdl/dlopen.c
+++ b/components/libdl/dlopen.c
@@ -15,7 +15,7 @@
 #include <rtthread.h>
 #include <rtm.h>
 
-void* rt_dlopen(const char *filename, int flags)
+void* dlopen(const char *filename, int flags)
 {
 	rt_module_t module;
 	
@@ -35,5 +35,5 @@ void* rt_dlopen(const char *filename, int flags)
 	}	
 }
 
-RTM_EXPORT(rt_dlopen)
+RTM_EXPORT(dlopen)
 
diff --git a/components/libdl/dlsym.c b/components/libdl/dlsym.c
index d1b5266ce1ba035aed26be0eacfc8f220e7260f5..67663bc324fb12817adbf1bb687507764bc77c69 100644
--- a/components/libdl/dlsym.c
+++ b/components/libdl/dlsym.c
@@ -15,13 +15,15 @@
 #include <rtthread.h>
 #include <rtm.h>
 
-void* rt_dlsym(void *handle, const char* symbol)
+void* dlsym(void *handle, const char* symbol)
 {
 	int i;
-	rt_module_t module = (rt_module_t)handle;
+	rt_module_t module;
 	
 	RT_ASSERT(handle != RT_NULL);
 
+	module = (rt_module_t)handle;
+
 	for(i=0; i<module->nsym; i++)
 	{
 		if (rt_strcmp(module->symtab[i].name, symbol) == 0)
@@ -31,5 +33,5 @@ void* rt_dlsym(void *handle, const char* symbol)
 	return RT_NULL;
 }
 
-RTM_EXPORT(rt_dlsym)
+RTM_EXPORT(dlsym)