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On Thu, Aug 22, 2002 at 08:07:26PM -0400, Roland McGrath wrote:
> I just experimented with making a static variable in rtld.c and redefining
> GL using that locally, with strong_alias to define _rtld_global. It seems
> to work. Can platforms like Alpha and SPARC avoid the relocs for local
> symbols?
Ok, Alpha can do it, just tested:
static int i;
int j __attribute__((visibility("hidden")));
int k[100] __attribute__((visibility("hidden"), section(".sdata")));
int foo (void)
{
return i;
}
int bar (void)
{
return j;
}
int baz (void)
{
return k[0];
}
on CVS head, unfortunately it doesn't do this in visibility
backport for 3.2 (yet, I'll have a look at this next weak).
On SPARC, it is not possible until binutils/gcc/glibc are
changed for the proposed new relocs.
IA-64 is ok with both 3.2 backport and 3.3 mainline.
So it IMHO looks like we need configury test for this (which will be
unfortunately arch dependend, and have a default for not tested architecture
(use bootstrap map)).
Jakub
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