FM / function

/usr/share/gdb/python/gdb/function

Name	Size	Mode	Actions
as_string.py	1053	0644	edit dl rm
caller_is.py	4817	0644	edit dl rm
in_scope.py	1654	0644	edit dl rm
strfns.py	2684	0644	edit dl rm
__init__.py	692	0644	edit dl rm

Edit: /usr/share/gdb/python/gdb/function/as_string.py (1053B)

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import gdb

class _AsString(gdb.Function):
    """Return the string representation of a value.

Usage:
  $_as_string(value)

Arguments:

value: A gdb.Value.

Returns:
  The string representation of the value.
"""

def __init__(self):
        super(_AsString, self).__init__("_as_string")

def invoke(self, val):
        return str(val)

_AsString()

cmd: