Commit Briefs
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
command-line extraction from core files on linux and freebsd. move linux ureg into ureg386.h (used in many places).
don't set PLAN9 don't set PLAN9