gecko-dev/js/jsd
..
idl
test
jsd1640.def
jsd1640.rc
jsd3240.rc
jsd_atom.cpp
jsd_high.cpp
jsd_hook.cpp
jsd_lock.cpp
jsd_lock.h
jsd_obj.cpp
jsd_scpt.cpp
jsd_stak.cpp
jsd_step.cpp
jsd_text.cpp
jsd_val.cpp
jsd_xpc.cpp
jsd_xpc.h
jsd.h
jsdebug.cpp
jsdebug.h
jsdstubs.cpp
jshash.cpp
jshash.h
mkshell.bat
moz.build
README
resource.h

js/jsd contains code for debugging support for the C-based JavaScript engine 
in js/src.  jsd_xpc.cpp provides an XPCOM binding for the library.

js/jsd/jsdb is a console debugger using only native code (see README in that 
directory.)  This debugger is no longer being actively developed, though it
should work.