Re: Ask for helping about LD linker

[Nick Clifton]

Hi Jian,

> Excuse me,I don't know how to  remove unused functions and variable when 
> linking ELF.

Compile your program with --function-sections.  Link your program with 
-Wl,--gc-sections.

Note: This feature is not implemented for all targets.  If it does not 
work for you then it may be that the target you are working with is one 
of the unsupported targets.

Cheers
  Nick