http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58256
--- Comment #11 from Chen Gang <gang.chen at asianux dot com> --- It seems, I am really really a newbie !! 1. after append "-gstabs+", can let gdb work well. 2. can use the internal dump_file (dump_start/dump_end) to analyze all information (although I still don't know how to use it now). 3. that means: what I have done above is almost all 'spam'. :-( I will continue trying tomorrow.
