how linker decide addr of sym in a circle call?

[xie cui]

in linker,

the code is like this:

func f() {

   g()

}

func g() {

    f()

}

when gen binary code of func f, need func g, and gen g need f,

how linker deal with this situation, and where is the code?

is dynrelocsym do this job? it seem that it can deal with circles calls?

[Ian Lance Taylor]

The linker gets code for f that has a relocation that says "here
insert a call to g", and gets code for g that has a relocation that
says "here insert a call to f". The linker places the code for f and
g into the output. Then it walks over all the relocations, and, for
this example, inserts a call to the appropriate address.

Ian