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Re: ppc64 __attribute__((visibility ("hidden"))) and multiple TOCs


On Mon, Jun 25, 2007 at 09:15:40AM -0400, David Edelsohn wrote:
> 	Emitting a NOP depends on SYMBOL_FLAG_LOCAL.
> 
>    if (targetm.binds_local_p (decl))
>      flags |= SYMBOL_FLAG_LOCAL;
> 
> PPC64 uses the default binds_local_p() hook, default_binds_local_p_1():
> 
>   /* If defined in this object and visibility is not default, must be
>      local.  */
>   else if (DECL_VISIBILITY (exp) != VISIBILITY_DEFAULT)
>     local_p = true;
> 
> Why does binds_local_p return true for non-default visibility?

Because local in binds_local_p's definition is "defined in the same
executable or shared library" and that's true for hidden visibility.
ppc64 in this case needs more strict definition of what local is though.

	Jakub


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