[PATCH, GCC 4.7] Backport fix for PR tree-optimization/53708

[Jakub Jelinek]

On Tue, Oct 30, 2012 at 01:43:33PM -0500, Peter Bergner wrote:
> Commenting on Richard's question from the bugzilla:
> 
>   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53708#c10
> 
> I suppose if attribute((__aligned__)) truly does just set a minimum alignment
> value (and the documentation seems to say that) and the compiler is free to
> arbitrarily increase it, then the GLIBC code to scan the init_array needs to
> be tolerant of null values in init_array.
> 
> Does everyone agree with that assessment?

I think the right test is for user supplied section name,
this approach is so common that I think we have to support it.
E.g. Linux kernel, glibc, prelink all use this, gcc itself too (e.g.
crtstuff.c).

	Jakub