Re: _dl_tls_static_size _dl_tls_static_align

[Mike Frysinger <vapier at gentoo dot org>]

On Monday 20 April 2009 19:35:48 Petr Baudis wrote:
> On Mon, Apr 20, 2009 at 07:20:53PM -0400, Mike Frysinger wrote:
> > On Monday 20 April 2009 16:11:29 Eduardo wrote:
> > > Is there a way to access the symbols _dl_tls_static_size and
> > > _dl_tls_static_align from a user program? I mean, I want to know the
> > > size and alignment of the TLS in a program.
> > >
> > > This symbols are define inside the dynamic loader, but apparently they
> > > are not exported.
> >
> > if they arent exported, then you cant access them
>
> However, you can use _dl_get_tls_static_info() as declared in
> sysdeps/generic/ldsodefs.h to get the information. Note that this is
> an internal interface and probably has no ABI stability guarantees.

that symbol didnt exist in glibc-2.8, so yes, that can probably be used so 
long as you dont need something even close to portable.  these internal 
functions (marked GLIBC_PRIVATE) come and go between glibc versions.
-mike

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