Commit Briefs
libmach: more mach-o support
R=rsc http://codereview.appspot.com/2277041
Start working through proper handling of pthreads when
debugging Linux core dumps. Pthreads for active processes is still not supported, nor are other systems.
better unwinding for 386.
command-line extraction from core files on linux and freebsd. move linux ureg into ureg386.h (used in many places).
clean up when finished.
don't set PLAN9 don't set PLAN9