On Wed, Jan 13, 2021 at 7:39 AM xie cui <cuiwei...@gmail.com> wrote:
>
> 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?
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
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