[Bug gdb/9764] Create multiple checkpoints with one command

[Bug gdb/9764] Create multiple checkpoints with one command

[sergiodj at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=9764

Sergio Durigan Junior <sergiodj at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
                 CC|                            |sergiodj at redhat dot com
         Resolution|---                         |OBSOLETE

--- Comment #4 from Sergio Durigan Junior <sergiodj at redhat dot com> ---
Closing as OBSOLETE due to inactivity.  Feel free to reopen if it is still
valid.

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[Bug gdb/9764] Create multiple checkpoints with one command

[pedro at codesourcery dot com]

------- Additional Comments From pedro at codesourcery dot com  2009-01-19 23:58 -------
Subject: Re:  Create multiple checkpoints with one command

On Monday 19 January 2009 23:45:51, uri at 4refs dot com wrote:
> 
> ------- Additional Comments From uri at 4refs dot com  2009-01-19 23:45 -------
> Thanks for the workaround. I tested it and it does work.
> 
> However, I think it is a useful feature that I imagine is near trivial to
> implement. Otherwise, I'm going to have to pass this file around to all of my
> coworkers.

The whole point here is that we avoid adding feature bloat to the core, when
the feature is already easily available.  That's the whole idea behind a
scriptable interface.  Do you think the script has any disadvantage
other than that?  Doesn't seem much worse than passing around new versions
of gdb to your coworkers to me.



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[Bug gdb/9764] Create multiple checkpoints with one command

[uri at 4refs dot com]

------- Additional Comments From uri at 4refs dot com  2009-01-19 23:45 -------
Thanks for the workaround. I tested it and it does work.

However, I think it is a useful feature that I imagine is near trivial to
implement. Otherwise, I'm going to have to pass this file around to all of my
coworkers.

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[Bug gdb/9764] Create multiple checkpoints with one command

[pedro at codesourcery dot com]

------- Additional Comments From pedro at codesourcery dot com  2009-01-19 23:36 -------
Subject: Re:  New: Create multiple checkpoints with one command

On Monday 19 January 2009 23:08:50, uri at 4refs dot com wrote:
> Given that I cannot create a checkpoint and keep it in place, I often create
> multiple checkpoints so that if I need to go back I still have lots of choices.
> This requires me to type "checkpoint" many times. The program that I debug is
> large (up to 128GB) so creating these can take some time, though not an enormous
> amount. Still, it would be nice if I could type:
> 
> checkpoint 10
> 
> ... and 10 checkpoints are created, like other GDB commands.
> 

You can make use of gdb's scripting support for this (see
the ``Extending GDB'' section in the user manual).  Add this
to your .gdbinit file:

 define mycheckpoint
  set $i = $arg0
  while $i > 0
   checkpoint
   set $i = $i - 1
  end
 end

(or type it in gdb's shell, if you want)

Then:

(gdb) mycheckpoint 10
(gdb) info checkpoints
  10 process 21361 at 0x406740, file gdb.c, line 26
  9 process 21360 at 0x406740, file gdb.c, line 26
  8 process 21359 at 0x406740, file gdb.c, line 26
  7 process 21358 at 0x406740, file gdb.c, line 26
  6 process 21357 at 0x406740, file gdb.c, line 26
  5 process 21356 at 0x406740, file gdb.c, line 26
  4 process 21355 at 0x406740, file gdb.c, line 26
  3 process 21354 at 0x406740, file gdb.c, line 26
  2 process 21353 at 0x406740, file gdb.c, line 26
  1 process 21352 at 0x406740, file gdb.c, line 26
  0 process 21346 (main process) at 0x0

Does this work for you?



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[Bug gdb/9764] Create multiple checkpoints with one command

[pedro at codesourcery dot com]

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