story@calma.UUCP (Glen Story) (03/02/86)
Help! I (a new Un*x user) am having trouble with the dbx debugger.
The problem is that we have several large multi-source-file programs that we
are porting to Unix 4.2BSD. When I try to work with one of these programs
with dbx, it can't seem to corrolate the object code back to the the
source code. If I issue stop commands, or if the program crashes,
dbx shows machine-language insructions instead of source code.
An example follows:
% make $c/systems/defnet
cc -g -o /tmp/cn26/src/clinks/systems/defnet \
/tmp/cn26/src/clinks/systems/defnet.o \
/tmp/cn26/src/clinks/systems/defnetdel.o \
/tmp/cn26/src/clinks/systems/defnetent.o \
/tmp/cn26/src/clinks/systems/defnetenu.o \
/tmp/cn26/src/clinks/systems/defnetlst.o \
/tmp/cn26/src/clinks/systems/defnetrev.o \
/tmp/cn26/src/clinks/systems/defnettpm.o \
/tmp/cn26/src/clinks/systems/defnetu.o \
/tmp/cn26/src/links/systems/defnetu2.o \
/tmp/cn26/src/clinks/systems/defnetupd.o \
/tmp/cn26/src/clinks/libraries/cnlib /usr/lib/libtermcap.a
% cd /tmp/cn26/src/clinks/systems
% dbx defnet
dbx version 7 of 3/18/85 13:07 (ISI).
Type 'help' for help.
reading symbolic information ...
(dbx) file defnet.c
(dbx) stop in mt_main
[1] stop in mt_main
(dbx) run
[1] stopped in mt_main at 0x336
00000336 bra #398 <<<---- this doen't look like c to me
(dbx) list
1 /* DEFNET.CC */ <--- this s my failing statemnt??
2 /* W.T.SUMERLIN,JR. */
3 /* CALMA */
4 /* APRIL 5, 1984 */
5 /* */
6 /* */
7 /* NETWORK ROUTE DEFINITION PROGRAM REV2.0 */
8 /* */
9
10
(dbx) step
stopped in mt_main at 0x398
00000398 link fp,#0xfffc <-- still wrong lang.
(dbx) quit
%
You will note that I am running from the directory that contains the
source code in question. Moreover, I specified the module containing
the breakpoint in a "file" command.
Is there something else I have to do? Do I have to specify paths for
*all* source modules? Or, have I hit some kind of limit in dbx?
Any help (preferably via email) will be greatly appreciated.
Glenn Story
calma!story@ucbvax.ARPA
{ucbvax,sun,csd-gould}!calma!story