From: Keith Seitz <keiths@redhat.com>
To: Evan Driscoll <driscoll@cs.wisc.edu>
Cc: gdb@sourceware.org
Subject: Re: Pythons scripting API question
Date: Wed, 30 May 2012 21:23:00 -0000 [thread overview]
Message-ID: <4FC68FD0.4060809@redhat.com> (raw)
In-Reply-To: <4FC66293.5040908@cs.wisc.edu>
On 05/30/2012 11:10 AM, Evan Driscoll wrote:
> I'd like to get a list of the local variables in a frame, or at least
> the parameters. I'm looking through the documentation of the Python API,
> and not seeing how to do it.
Frames contain blocks, blocks contain variables. Blocks in python can be
iterated, so:
$ ./gdb -nx -q gdb -ex "break main" -ex "run"
(gdb) python import gdb
(gdb) python for n in gdb.selected_frame().block(): print n,
argc argv args
(gdb) python print n.type
struct captured_main_args
(gdb) python print n.name
args
(gdb) python print n.is_argument
False
(gdb) python print n.value(gdb.selected_frame())
{argc = 0, argv = 0x488f80 <_start>, use_windows = -8032, interpreter_p
= 0x0}
This will give you both parameters and locals. There are methods you can
use to determine which is which (e.g., Symbol.is_argument).
See the relevant sections in the Gdb Users Manual (23.2.2.16, 23.2.2.18).
Keith
next prev parent reply other threads:[~2012-05-30 21:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 18:10 Evan Driscoll
2012-05-30 21:23 ` Keith Seitz [this message]
2012-05-30 22:42 ` Evan Driscoll
2012-05-30 23:12 ` Keith Seitz
2012-06-06 15:46 ` Joachim Protze
2012-06-06 17:58 ` Tom Tromey
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