RE: Distributed Debugger Source Pane

["Morgan Najjar" <morgan@xxxxxxxx>]

Xuan,

Regarding the "mismatch" of line numbers that I mentioned in this
thread: Someone I work with noticed the following post on the
comp.sys.ibm.as400.misc newsgroup:

----------------
Hi folks.

I compile C from the IFS using the officially unsupported "icc" program
(run from qshell).

Things are working mostly okay.  The big problem is the resulting
programs cannot be debugged easily.

By this, I mean the debugger gets BADLY confused.  It shows you as
executing lines anywhere from a few lines to dozens and dozens of lines
off from what you are really executing.  This happens no matter what
listing mode I choose, though it does tend to change what the debugger
thinks the active line is.

My question is, is anyone else experiencing this?  I am using V5R1.  IBM
has been promising a fix for months, but still has not delivered a fix,
so I'm hoping the AS/400 (sorry, iSeries) community has come up with
work-arounds.

Thanks for any replies.
----------------

This post describes the problem I'm having also.

I've confirmed that the modules I've created were compiled with no
optimization.

I see the problem with stepping in the debugger and in trying to set
breakpoints.

The problem occurs in both the native debugger and in the distributed
debugger.

I'm going to continue to investigate and try to set up a simple test
case to see if I can narrow it down.  For now I wanted to forward this
to you.

Thanks

Morgan

> -----Original Message-----
> From: code400-l-admin@midrange.com
> [mailto:code400-l-admin@midrange.com]On Behalf Of Morgan Najjar
> Sent: Friday, January 18, 2002 2:14 PM
> To: code400-l@midrange.com
> Subject: RE: Distributed Debugger Source Pane
>
>
> Xuan,
>
> I hope this comes through in email ok.  I'm trying to
> correlate the line
> numbers that I'm seeing in the various places.
>
> ======================================
> This is the left hand side of a DSPF of one of my steam file, source
> files.  This is the actual source.
>
>  Browse : ap.c
>  Record :     274   of    1852 by  18
> Column :    1
> 77 by 131
>  Control :
>
> ....+....1....+....2....+....3....+....4
> **  Attach a sarb that restricts compile
> **  that meet the frame class parameter.
> */
>     cfrm_proto.cfrm_class = frm_class;
> #if OLD_MACROS
>     fad.fad_scb = SCB_PROTO_EQ( &scb, 2
>               cfrm_proto.cfrm_class,
> #else
>     fad.fad_scb = SCB_PROTO_EQ( &scb,
>                                 cfrm_pr
>                                 cfrm_ar
> #endif
>     cfrm_sarb = FM_ATTACH( cfrm_arb, &f
>     CASSERT( cfrm_sarb, ( ut_dbg, "Atta
>
> /*
> **  Locate the first frame for this frame class.
> */
>
> ======================================
>
> Here's the CRTCMOD listing for the same section of code.
>
> I'm assuming that the line "5722WDS  V5R1M0...." is a page
> heading where
> a page break would be?
>
> Notice that before this the last line printed is 284, but
> after it it is
> 294.
>
> This seems incorrect to me, and also seems to be the point in this
> module where the debugger interaction pertaining to line numbers goes
> astray.
>
> The only thing that I can think of is that my macro,
> SCB_PROTO_EQ, does
> expand to 8 lines.
>
>                                                        Display Spooled
> File
> File  . . . . . :   AP
> Control . . . . .   +1
> Find  . . . . . .   607
> *...+....1....+....2....+....3....+....4....+....5....+.
>   274       |/*
>   275       |**  Attach a sarb that restricts compiled f
>   276       |**  that meet the frame class parameter.
>   277       |*/
>   278     4 |    cfrm_proto.cfrm_class = frm_class;
>   282       |#else
>   283       |    fad.fad_scb = SCB_PROTO_EQ( &scb, 2, &c
>   284       |                                cfrm_proto.
> 5722WDS V5R1M0  010525   IBM ILE C for AS/400    ap.c
>   294     5 |                                cfrm_arb );
>   295       |#endif
>   296     6 |    cfrm_sarb = FM_ATTACH( cfrm_arb, &fad,
>   298     7 |    CASSERT( cfrm_sarb, ( ut_dbg, "Attach c
>   299       |
>   300       |/*
>   301       |**  Locate the first frame for this frame c
>   302       |*/
>   303     8 |    cfrm = ( cfrm_blk * ) fm_read_fast( cfr
>   304       |
>
> More..
> F3=Exit   F12=Cancel   F19=Left   F20=Right   F24=More keys
>
> ======================================
>
> Does this make sense?
>
> Morgan
>
> _______________________________________________
> This is the CODE/400 Discussion & Support (CODE400-L) mailing list
> To post a message email: CODE400-L@midrange.com
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/cgi-bin/listinfo/code400-l
> or email: CODE400-L-request@midrange.com
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/code400-l.
>