Re: Link time manipulation of kernel symbols like read/write

["Leonidas ." <leonidas137@gmail.com>]

Couple more questions:

1. How does the dynamic linking/loading happen in kernel? What is the
equivalent of ld-linux.so in kernel space?

Any pointer will be helpful

-Leo

On Fri, May 7, 2010 at 11:21 PM, Leonidas . <leonidas137@gmail.com> wrote:
> Hi folks,
>
> Is it possible to wrap module entry points like open/close during the
> module compilation?
> By wrapping, I mean interposing using linker --wrap option. This is
> very much possible in
> user space and is commonly used to interpose library functions.
>
> E.g.
>
> void *
> __wrap_malloc (int c)
> {
>  printf ("malloc called with %ld\n", c);
>  return __real_malloc (c);
> }
>
> int main()
> {
>    malloc(17);
>    return 0;
> }
>
> Above works expected, can we wrap kmalloc this way?
>
> -Leo.
>



-- 


-Leo.