Add libdl.so to the list of system shared libs

Note that libdl is already (always) implicitly loaded
because libc.so has a dependency on it.

Also make sure that libc.so always preceding libdl.so
in dt_needed list.

Bug: http://b/62815515
Test: make
Change-Id: I94c9d676b7fa98438b452d24f6c3bbf93166c6a9

core/binary.mk

@@ -24,9 +24,10 @@ ifdef LOCAL_IS_HOST_MODULE
   endif
 else
   ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
-      my_system_shared_libraries := libc libm
+      my_system_shared_libraries := libc libm libdl
   else
       my_system_shared_libraries := $(LOCAL_SYSTEM_SHARED_LIBRARIES)
+      my_system_shared_libraries := $(patsubst libc,libc libdl,$(my_system_shared_libraries))
   endif
 endif
 
@@ -39,7 +40,7 @@ my_src_files := $(LOCAL_SRC_FILES)
 my_src_files_exclude := $(LOCAL_SRC_FILES_EXCLUDE)
 my_static_libraries := $(LOCAL_STATIC_LIBRARIES)
 my_whole_static_libraries := $(LOCAL_WHOLE_STATIC_LIBRARIES)
-my_shared_libraries := $(LOCAL_SHARED_LIBRARIES)
+my_shared_libraries := $(filter-out $(my_system_shared_libraries),$(LOCAL_SHARED_LIBRARIES))
 my_header_libraries := $(LOCAL_HEADER_LIBRARIES)
 my_cflags := $(LOCAL_CFLAGS)
 my_conlyflags := $(LOCAL_CONLYFLAGS)
@@ -1362,7 +1363,7 @@ endif
 ifdef LOCAL_INSTALLED_MODULE
 ifdef installed_shared_library_module_names
 $(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)DEPENDENCIES_ON_SHARED_LIBRARIES += \
-    $(my_register_name):$(LOCAL_INSTALLED_MODULE):$(subst $(space),$(comma),$(sort $(installed_shared_library_module_names)))
+    $(my_register_name):$(LOCAL_INSTALLED_MODULE):$(subst $(space),$(comma),$(installed_shared_library_module_names))
 endif
 endif
 

core/cxx_stl_setup.mk

@@ -99,8 +99,6 @@ ifneq ($(filter $(my_cxx_stl),libc++ libc++_static),)
 
         ifeq ($(my_link_type),static)
             my_static_libraries += libm libc libdl
-        else
-            my_shared_libraries += libdl
         endif
     endif
 else ifeq ($(my_cxx_stl),ndk)