armlink tool consult

hi all.

I want to recude the build image. but i find some functions are not used in my project.

for example, two functions who comes from one source file. now fun1() is used, fun2() not used, they are belong to text section.

but  all function code are added into the fina image after armlink

so what command or option can be used for armlink, which can delete unused funciton code in image, not delete total section.

Thanks ,

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