DWARF Status Report Week 6 & 7

[Xingxing Pan]

This project is to annotate the hand writing assembly files with CFI
directives.The annotation provide call frame information for software
like debuggers.

(1)This week I annotated library rtld for amd64. Until now, all the
libraries mentioned in the proposal except signal trampolines have
been annotated. As to signal trampolines, I have to talk with my
mentor.
(2)Read GDB's testsuites to learn how to write expect scripts for testing.