http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46770
--- Comment #66 from H.J. Lu <hjl.tools at gmail dot com> 2011-06-23 23:17:04
UTC ---
(In reply to comment #65)
> 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.
[hjl@gnu-6 libgcc]$ readelf -s crtend.o
Symbol table '.symtab' contains 11 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: 0000000000000000 0 FILE LOCAL DEFAULT ABS crtstuff.c
2: 0000000000000000 0 SECTION LOCAL DEFAULT 1
3: 0000000000000000 0 SECTION LOCAL DEFAULT 2
4: 0000000000000000 0 SECTION LOCAL DEFAULT 3
5: 0000000000000000 0 SECTION LOCAL DEFAULT 4
6: 0000000000000000 0 OBJECT LOCAL DEFAULT 4 __FRAME_END__
7: 0000000000000000 0 SECTION LOCAL DEFAULT 5
8: 0000000000000000 0 OBJECT LOCAL DEFAULT 5 __JCR_END__
9: 0000000000000000 0 SECTION LOCAL DEFAULT 7
10: 0000000000000000 0 SECTION LOCAL DEFAULT 6
We need __FRAME_END__ for exception handling and __JCR_END__ for
_Jv_RegisterClasses.
