ARM DS5 for A53

Yes, this should be fine to do - when your initialization code is done, you then call __main, which performs the c library initialization and other actions, before finally calling main().

When you link the image, use --entry to define the function within your startup.s as being the real start of the code.

Yes, this should be fine to do - when your initialization code is done, you then call __main, which performs the c library initialization and other actions, before finally calling main().

When you link the image, use --entry to define the function within your startup.s as being the real start of the code.

thanks again . Do I should change the arm ds5 setings?

See the LDFLAGS option in the makefile for this project, which contains "-e start64" (-e is a synonym for --entry).

 thanks a lot  ！！I have maked a big sucess