* [rtdef] rename RT_WEAK attribute as rt_weak * [rtdef] rename RT_USED attribute as rt_used * [rtdef] rename RT_SECTION attribute as rt_section * [rtdef] rename ALIGN attribute as rt_align * [legacy] add RT_USED ALIGN RT_SECTION RT_WEAK as legacy support
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2350 bbd45198-f89e-11dd-88c7-29a3b14d5316