Comments for The Cliffs of Inanity

Comment on 9. Scripting gdb by tom

tom — Wed, 15 May 2013 18:03:31 +0000

@Michael – there may not be a way right now. I think symbol table iteration is not very well supported yet. Please file a bug.

Comment on 2. Writing a new gdb command by tom

tom — Wed, 15 May 2013 18:02:24 +0000

@Haitham – I’m not actually sure. I suggest filing a bug report.

Comment on 9. Scripting gdb by Michael K

Michael K — Wed, 24 Apr 2013 06:40:32 +0000

Hello Tom,

first of all thank you for your great work, python scripting is a great feature in GDB!

I have a question which I would like to ask you at this place: How can I get an iterator over the global symbol table without having a valid stack frame? I want to write a script which prints out some information on global symbols from within .gdbinit, before execution has been started. I am using GDB 7.5.

Any hint on this would be greatly appreciated!

Michael.

Comment on 2. Writing a new gdb command by Haitham Gad

Haitham Gad — Wed, 13 Mar 2013 02:41:52 +0000

I have a question regarding prefix commands. I know that the gdb “logging” command is a prefix command:

set logging file “/tmp/log”
set logging overwrite on

But at the same time, you can give it values independently like:

set logging on
set logging off

In python, if I need to get the value of a sub-parameter, I use:

gdb.parameter(“logging file”)
gdb.parameter(“logging overwrite”)

But how to get the value of the “logging” parameter itself? I tried:

gdb.parameter(“logging”)

but it didn’t work.

Thanks,
Haitham

Comment on Valgrind and GDB by manu

manu — Wed, 20 Feb 2013 11:06:56 +0000

Hi Thanks for the info, i was struggling for how to use gdb along with valgrind, this helped.

Comment on Emacs and Common Lisp by Erik

Erik — Tue, 05 Feb 2013 01:02:56 +0000

Rob, one problem I have with emacs that could be solved is the entire process waiting for blocking i/o

Comment on Difficulties of elisp by Stefan Monnier

Stefan Monnier — Tue, 11 Dec 2012 15:40:25 +0000

A `defvar’ed variable should definitely turn into two things:

- an “elisp-var” object. That object should probably not be a symbol.

- a symbol-macro that expands references into operations on that object.

Comment on 3. gdb convenience functions by Jet Lau

Jet Lau — Sat, 08 Dec 2012 01:58:54 +0000

A popen2.Popen3 connect to gdb, and When I write a command through Popen3 to gdb,if it will return somrthing immediately? I am reading some code about this now,I don’t what it return.

Comment on Quick Multi-process Debugging Update by Toby Speight

Toby Speight — Fri, 30 Nov 2012 17:03:37 +0000

Björn, to reload a module, I use something like

(gdb) python reload(sys.modules['qt473'])

(qt473 is my – incomplete, and buggy – set of printers for Qt 4.7.3 types)

Comment on Valgrind and GDB by Nate

Nate — Sun, 04 Nov 2012 19:21:37 +0000

Thanks for the great info on hooking up Valgrind + GDB!