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From: "Alain Magloire" <alain@qnx.com>
To: bob@brasko.net (Bob Rossi)
Cc: gdb@sources.redhat.com
Subject: Re: GDB/XMI (XML Machine Interface)
Date: Wed, 11 Aug 2004 19:26:00 -0000	[thread overview]
Message-ID: <200408111926.PAA23762@smtp.ott.qnx.com> (raw)
In-Reply-To: <20040811180504.GA25485@white> from "Bob Rossi" at Aug 11, 2004 02:05:04 PM

> 
> Hi,
> 
> Thanks to everyone that has looked at this RFC so far. I will leave the idea
> floating around for a few days to let everyone have a chance to
> respond. Then I will follow up the RFC with a summary of everyone's
> opinions.
> 
> I can see with the ideas given already, that if everyone contributes 
> (at least informationally), this RFC could be modified to fit into GDB
> very nicely.
> 

Nick "No spam" G. and other said something about this already .. I'll just reiterate.

The problem is not so much MI as a protocol then the implementation of MI in gdb 8-).
If you read the MI spec, it is not that bad .. actually very promising
and with the proposed changes from Andrew C and crew .. not bad at all.

MI did offer a consistent parsing vs protocol like Annoted {1,2}

Reality check, it hits you like a brick wall: the grand canyon between the documentation
vs actual implementation.
(some third parties like WindRiver or Apple seems to have "cleaner" implementation of MI).

Doing a clean recursive decent parser for MI, is actually very simple... 
it's just that you have to make n exceptions: inconsitencies, plain bugs,
crap etc .. the inferior output can be intertwine to the protocol, the duality CLI vs MI in an IDE,
the OOB(async notifications) being incomplete, the inconsistensies between argument parsing etc ..

Pros:
No doubt, XMI will offer an even more consistent parsing, it is a well know and formal language.
So the parsing will no longer be the focus (with all the available xml parsers) of problems.
The focus will be shift to more consistency of the data and folks can concentrate on
real issues(can we get notification for loading of dll or catch event implementation 8-) etc .. a good thing.

But whether XMI or MI the problems remains; a good implementation and resources to work on it.
GDB carries in its belly an enormous knowledge an heritage but that makes it also obese 8-(
most folks prefer to go around problems with yet another rewrite instead of digging in ...
Question: are you doing the same with this XMI proposal ? If yes you'll fall to the same trap
as MI and GDB will carry "yet another incomplete implementation" 8-)

Note:
don't get me wrong the RFC is pretty good, and for a Java programer, xml is pure symphony.



  reply	other threads:[~2004-08-11 19:26 UTC|newest]

Thread overview: 215+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-10 20:14 Bob Rossi
2004-08-10 22:38 ` Kip Macy
2004-08-11  0:17 ` Michael Chastain
2004-08-11  7:36 ` Fabian Cenedese
2004-08-11  8:51 ` Nick NoSpam
2004-08-11 18:05 ` Bob Rossi
2004-08-11 19:26   ` Alain Magloire [this message]
2004-08-11 22:35     ` Jason Molenda
2004-08-12 13:03       ` Nick NoSpam
2004-08-19 23:49 ` Bob Rossi
2004-08-20  7:09   ` Chris Friesen
2004-08-20 12:47     ` Bob Rossi
  -- strict thread matches above, loose matches on Subject: below --
2005-10-10 20:46 Laziness David Lecomber
2005-10-10 20:50 ` Laziness Daniel Jacobowitz
2005-10-10 21:05   ` Laziness David Lecomber
2005-10-10 21:09     ` Laziness Daniel Jacobowitz
2005-10-10 21:24       ` Laziness David Lecomber
2005-10-10 21:27         ` Laziness Daniel Jacobowitz
2005-10-10 23:53           ` Laziness Paul Hilfinger
     [not found] <200508292030.NAA29909@hpsje.cup.hp.com>
     [not found] ` <1125360166.9350.69.camel@aretha.corp.specifix.com>
2005-08-30  1:13   ` HP gdb/wdb sources available Daniel Jacobowitz
2005-08-30  2:13     ` Paul Hilfinger
2004-10-26 14:49 backtrace changes current source location Felix Lee
2004-10-28 13:49 ` Daniel Jacobowitz
2004-10-06  1:03 Bumping MI protocol Bob Rossi
2004-10-06  5:08 ` Nathan J. Williams
2004-10-06 11:27   ` Bob Rossi
2004-10-06 12:30     ` Eli Zaretskii
2004-10-06 16:38       ` Bob Rossi
2004-10-06 16:45         ` Nathan J. Williams
2004-10-06 19:53           ` Bob Rossi
     [not found]       ` <eliz@gnu.org>
2004-10-06 16:57         ` Felix Lee
2004-10-06 17:03           ` Bob Rossi
2004-10-04 17:51 gdbserver, sysroot, prelink Felix Lee
2004-10-04 18:12 ` Daniel Jacobowitz
2004-10-03 17:15 probing GDB for MI versions Bob Rossi
2004-10-04  9:00 ` Eli Zaretskii
2004-10-04 13:19   ` Bob Rossi
2004-10-05  9:10     ` Eli Zaretskii
2004-10-05 12:34       ` Bob Rossi
2004-10-06 10:19         ` Eli Zaretskii
2004-10-06 11:47           ` Bob Rossi
2004-10-06 12:13             ` Dave Korn
2004-10-06 16:31               ` 'Bob Rossi'
2004-10-06 16:46                 ` Nathan J. Williams
2004-10-06 16:55                   ` 'Bob Rossi'
2004-10-06 17:04                     ` Nathan J. Williams
2004-10-06 17:15                       ` 'Bob Rossi'
2004-10-06 16:57                 ` Dave Korn
2004-10-06 17:12                   ` 'Bob Rossi'
2004-10-06 17:21                     ` Dave Korn
2004-10-06 17:24                       ` 'Bob Rossi'
2004-10-06 17:31                         ` Daniel Jacobowitz
2004-10-06 17:38                           ` Bob Rossi
2004-10-06 17:41                             ` Dave Korn
2004-10-06 17:55                               ` 'Bob Rossi'
2004-10-06 18:19                                 ` Paul Koning
2004-10-07 10:56                                 ` Dave Korn
2004-10-07 14:15                                   ` 'Bob Rossi'
2004-10-07 14:28                                     ` Dave Korn
2004-10-07 14:37                                       ` 'Bob Rossi'
2004-10-07 14:39                                         ` Dave Korn
2004-10-07 14:50                                           ` 'Bob Rossi'
2004-10-07 15:38                                             ` Dave Korn
2004-10-07 15:49                                               ` 'Bob Rossi'
2004-10-07 16:31                                                 ` Nathan J. Williams
2004-10-07 16:45                                                 ` Alain Magloire
2004-10-07 17:12                                                 ` Dave Korn
     [not found]                                                 ` <200410071614.MAA19648@smtp.ott.qnx.com>
2004-10-08  6:56                                                   ` 'Bob Rossi'
2004-10-08  9:10                                                     ` Eli Zaretskii
2004-10-10 18:13                                                       ` 'Bob Rossi'
2004-10-11 17:46                                                         ` 'Bob Rossi'
2004-10-13 12:14                                                         ` 'Bob Rossi'
2004-10-13 12:48                                                           ` Eli Zaretskii
2004-10-13 14:05                                                             ` 'Bob Rossi'
2004-10-14  7:10                                                               ` Eli Zaretskii
2004-10-14 19:34                                                                 ` 'Bob Rossi'
2004-10-14 21:23                                                                   ` Andrew Cagney
2004-10-15 15:40                                                                     ` 'Bob Rossi'
2004-10-15 13:02                                                                   ` Eli Zaretskii
2004-10-15 13:28                                                                     ` Michael Chastain
2004-10-15 13:42                                                                       ` Eli Zaretskii
2004-10-15 18:04                                                                     ` 'Bob Rossi'
2004-10-16 15:46                                                                       ` Eli Zaretskii
2004-10-16 21:56                                                                         ` 'Bob Rossi'
2004-10-17 18:59                                                                           ` Eli Zaretskii
2004-10-19 13:51                                                                             ` 'Bob Rossi'
2004-10-19 14:18                                                                               ` Daniel Jacobowitz
2004-10-19 19:28                                                                                 ` Bob Rossi
2004-10-19 20:17                                                                                 ` Eli Zaretskii
2004-10-06 18:43                               ` Andrew Cagney
2004-10-06 18:54                                 ` 'Bob Rossi'
2004-10-06 19:19                                   ` Andrew Cagney
2004-10-06 19:25                                     ` 'Bob Rossi'
2004-10-06 17:36                         ` Dave Korn
2004-10-06 17:51                         ` Paul Koning
2004-10-06 18:09                           ` Bob Rossi
2004-10-06 17:05                 ` Alain Magloire
2004-10-06 19:16 ` Andrew Cagney
2004-10-06 19:20   ` Bob Rossi
2004-10-06 20:10     ` Alain Magloire
2004-10-06 20:15       ` Bob Rossi
2004-10-06 20:13     ` Andrew Cagney
2004-10-08 10:28       ` Eli Zaretskii
2004-10-08 18:48         ` Daniel Jacobowitz
     [not found] <message on Sat, 21 Aug 2004 14:28:52 PDT from Felix Lee <felix.1@canids.net>
2004-08-22  2:55 ` GDB/XMI (XML Machine Interface) Felix Lee
2004-08-23  0:33   ` Bob Rossi
2004-08-23  9:27   ` Fabian Cenedese
     [not found] <5956F1E2-EB0D-11D8-9949-000A9569836A@apple.com>
2004-08-11  0:51 ` Chris Friesen
     [not found]   ` <gdb001@speakeasy.net>
2004-08-11  6:28     ` Felix Lee
2004-08-11  8:25       ` Chris Friesen
2004-08-11 22:43     ` Felix Lee
2004-08-12  4:54       ` OT: " Chris Friesen
2004-08-20 10:34     ` Felix Lee
2004-08-20 12:54       ` Bob Rossi
2004-08-20 18:34         ` Daniel Jacobowitz
2004-08-20 18:49           ` Bob Rossi
2004-08-20 18:52             ` Daniel Jacobowitz
2004-08-20 19:25               ` Bob Rossi
2004-08-20 19:42                 ` Daniel Jacobowitz
2004-08-20 19:59                   ` Bob Rossi
2004-08-21 10:25                     ` Eli Zaretskii
2004-08-21 12:34                       ` Bob Rossi
2004-08-21 13:34                         ` Eli Zaretskii
     [not found]         ` <bob@brasko.net>
2004-08-20 18:20           ` Felix Lee
2004-08-20 21:34           ` Felix Lee
2004-08-21 19:21           ` Felix Lee
2004-08-21 20:21             ` Bob Rossi
2004-08-21 19:28           ` Felix Lee
2004-08-21 20:16             ` Bob Rossi
2004-08-21 21:28           ` Felix Lee
2004-08-21 22:37           ` Felix Lee
2004-10-03 18:36           ` GDB/MI snapshots between major release's Felix Lee
2004-10-03 18:40             ` Bob Rossi
2004-10-03 18:42               ` Daniel Jacobowitz
2004-10-03 19:35                 ` Bob Rossi
2004-10-03 19:39           ` Felix Lee
2004-10-03 20:19             ` Bob Rossi
2004-10-04  5:00           ` Felix Lee
2004-10-04 15:34           ` Felix Lee
2004-10-04 15:58             ` Bob Rossi
2004-10-04 16:48           ` Felix Lee
2004-10-04 17:37             ` Bob Rossi
2004-10-04 18:31           ` Felix Lee
2004-10-04 19:00             ` Bob Rossi
2004-10-04 21:07           ` Felix Lee
2004-10-03 17:01             ` Bob Rossi
2004-10-04  5:04               ` Eli Zaretskii
2004-10-04 14:59                 ` Bob Rossi
2004-10-04 15:49                   ` Mark Kettenis
2004-10-04 16:04                     ` Bob Rossi
2004-10-05 10:57                       ` Eli Zaretskii
2004-10-05 14:18                         ` Daniel Jacobowitz
2004-10-06  1:40                           ` Bob Rossi
2004-10-06 11:14                           ` Eli Zaretskii
2004-10-06 11:39                             ` Bob Rossi
2004-10-06 13:19                               ` Eli Zaretskii
2004-10-06 16:55                                 ` Bob Rossi
2004-10-06 17:00                                   ` Paul Koning
2004-10-06 17:02                                     ` Bob Rossi
2004-10-04 21:27             ` Daniel Jacobowitz
2004-10-04 22:14             ` Bob Rossi
2004-10-05  9:03               ` Fabian Cenedese
2004-10-05  9:18                 ` Eli Zaretskii
2004-10-05 13:37                   ` Bob Rossi
2004-10-05 18:53           ` probing GDB for MI versions Felix Lee
2004-10-06 17:14           ` GDB/MI snapshots between major release's Felix Lee
2004-10-06 17:21             ` Daniel Jacobowitz
2004-10-06 18:41           ` Felix Lee
2004-10-06 18:50             ` Bob Rossi
2004-10-06 18:55           ` Bumping MI protocol Felix Lee
2004-10-06 19:43             ` Bob Rossi
2004-10-06 21:04           ` Felix Lee
2004-10-07 18:01           ` probing GDB for MI versions Felix Lee
2004-10-07 19:44             ` Bob Rossi
2004-10-08  8:54               ` Fabian Cenedese
2004-10-19 20:13           ` Felix Lee
2004-10-19 20:23             ` Eli Zaretskii
2004-10-19 21:27             ` Bob Rossi
2004-11-09  2:27             ` Bob Rossi
     [not found] <1092177534.30930.ezmlm@sources.redhat.com>
2004-08-10 23:02 ` GDB/XMI (XML Machine Interface) Jim Ingham
2004-07-29  5:10 breaking at for-loop test line Allen Hopkins
2004-07-29 16:29 ` Daniel Jacobowitz
2004-07-29 18:58   ` Andre Ancelin
2004-07-30 11:32   ` Eli Zaretskii
2004-08-03 19:21     ` Daniel Jacobowitz
2004-08-03 20:09       ` Andrew Cagney
2004-08-03 20:21         ` Daniel Jacobowitz
2004-07-25  1:18 [proposal/testsuite] require build == host Michael Chastain
2004-07-25  1:52 ` Felix Lee
2004-07-25  2:43   ` Daniel Jacobowitz
     [not found]     ` <drow@false.org>
2004-07-25 22:36       ` Felix Lee
2004-07-26 18:07         ` Michael Chastain
2004-07-27  4:41           ` Felix Lee
2004-07-29 22:21       ` breaking at for-loop test line Felix Lee
2004-07-30  8:23         ` Baurjan Ismagulov
     [not found]           ` <ibr@ata.cs.hun.edu.tr>
2004-07-30 10:46             ` Felix Lee
2004-08-03 18:53               ` Daniel Jacobowitz
2004-08-20 19:06       ` GDB/XMI (XML Machine Interface) Felix Lee
2004-08-20 19:09         ` Daniel Jacobowitz
2004-08-20 19:20       ` Felix Lee
2004-08-21 12:37         ` Bob Rossi
2004-10-04 19:05       ` gdbserver, sysroot, prelink Felix Lee
2004-10-04 19:24         ` Daniel Jacobowitz
2004-10-05 13:03           ` Andrew Cagney
2004-10-05 13:52             ` Daniel Jacobowitz
2004-10-05 13:53       ` Felix Lee
2004-10-06 17:58       ` GDB/MI snapshots between major release's Felix Lee
2004-10-29  8:32       ` backtrace changes current source location Felix Lee
2004-07-25  7:59 ` [proposal/testsuite] require build == host Eli Zaretskii
2004-07-27  0:45 ` Andrew Cagney
2004-07-27  2:31   ` Michael Chastain
2004-07-27  4:16     ` Eli Zaretskii
2004-07-27 15:32     ` Andrew Cagney
2004-07-27 15:50       ` Christopher Faylor
2004-07-27 21:17       ` Michael Chastain

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