[Bug target/46770] Replace .ctors/.dtors with .init_array/.fini_array on targets supporting them

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46770

--- Comment #65 from Ian Lance Taylor <ian at airs dot com> 2011-06-23 16:22:05 UTC ---
The mainline versions of both GNU ld and gold now put .ctors sections into
.init_array sections, and put .dtors sections into .fini_array sections. 
.ctors/.dtors sections with priorities are sorted correctly with
.init_array/.fini_array sections with priorities.

The gcc patch is still useful as it will permit eliminating the support for
constructors and destructors in crtbegin.o and crtend.o.  If we can do that I
believe that crtend.o can be removed, and crtbegin.o will only be needed to
call 
_Jv_RegisterClasses.