Symbol table format for dbx (In n)

[KINOSHITA Yoshiki]

	Could anyone out there kindly give me [a pointer to] the information
about the symbol table format for dbx(1) of UNIX 4.2BSD and Ultrix?

	Looking forward to make my Modula-2 compiler emit the object code
with enough information for symbolic debugging with dbx, I have examined manual
pages for stab(5), dbx(1), a.out(5) and also the reference manual of the
VAX assembler (as).  However, information available through those documents
is all for sdb, NOT for dbx.

	I know, of course, that an obvious way to get such information
is just to read and struggle with the source code of dbx.  However, before
taking this time-consuming approach, I would like to know if someone knows
about the existence [does it ever exist?] of document or memorandum of
this debugger.



Thanks in advance,

						Y. Kinoshita