[PATCH 3/5] [PowerPC] Relocate stinfo->main

[Alan Modra]

On Sun, Jan 23, 2022 at 08:48:44PM -0800, H.J. Lu wrote:
> On Sun, Jan 23, 2022 at 7:51 PM Alan Modra via Libc-alpha
> > +  void *main = stinfo->main;
> > +#if ENABLE_STATIC_PIE && !defined SHARED
> > +  struct link_map *map = _dl_get_dl_main_map ();
> > +  if (!map->l_relocated)
> > +    main = (char *) main + elf_machine_load_address ();
> > +#endif
> 
> Can you use __ehdr_start t here, similar to
> 
> https://gitlab.com/x86-glibc/glibc/-/commit/1df93c500d0f81d30d1b7e323153512a8768bb72#ffb950808032d5085fdf882753d7bf8889e6a3d7

That idea hadn't occurred to me.  Yes, that likely would have worked
too.  I used the old traditional way of calculating l_addr, which
happens to be quite cheap on powerpc64, but admittedly not so good on
powerpc32.

-- 
Alan Modra
Australia Development Lab, IBM