On 01/30/2015 02:13 AM, Andrew Morton wrote: > On Thu, 29 Jan 2015 18:11:59 +0300 Andrey Ryabinin <a.ryabinin@xxxxxxxxxxx> wrote: > >> KASan uses constructors for initializing redzones for global >> variables. Actually KASan doesn't need priorities for constructors, >> so they were removed from GCC 5.0, but GCC 4.9.2 still generates >> constructors with priorities. > > I don't understand this changelog either. What's wrong with priorities > and what is the patch doing about it? More details, please. > Currently kernel ignore constructors with priorities (e.g. .init_array.00099). Kernel understand only constructors with default priority ( .init_array ). This patch adds support for constructors with priorities. For kernel image we put pointers to constructors between __ctors_start/__ctors_end and do_ctors() will call them. For modules - .init_array.* sections merged into .init_array section. Module code properly handles constructors in .init_array section. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
