From 52093e1b936fa4f3f8bb3868c5a44d0df25c8db4 Mon Sep 17 00:00:00 2001 From: Marco Barisione Date: Mon, 1 Apr 2019 09:59:53 +0200 Subject: Add gdb.Value.format_string () The str () function, called on a gdb.Value instance, produces a string representation similar to what can be achieved with the print command, but it doesn't allow to specify additional formatting settings, for instance disabling pretty printers. This patch introduces a new format_string () method to gdb.Value which allows specifying more formatting options, thus giving access to more features provided by the internal C function common_val_print (). gdb/ChangeLog: 2019-04-01 Marco Barisione Add gdb.Value.format_string (). * python/py-value.c (copy_py_bool_obj): (valpy_format_string): Add gdb.Value.format_string (). * NEWS: Document the addition of gdb.Value.format_string (). gdb/doc/ChangeLog: 2019-04-01 Marco Barisione * python.texi (Values From Inferior): Document gdb.Value.format_string (). gdb/testsuite/ChangeLog: 2019-04-01 Marco Barisione Test gdb.Value.format_string (). * gdb.python/py-format-string.exp: New test. * gdb.python/py-format-string.c: New file. * gdb.python/py-format-string.py: New file. --- gdb/testsuite/gdb.python/py-format-string.py | 49 ++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 gdb/testsuite/gdb.python/py-format-string.py (limited to 'gdb/testsuite/gdb.python/py-format-string.py') diff --git a/gdb/testsuite/gdb.python/py-format-string.py b/gdb/testsuite/gdb.python/py-format-string.py new file mode 100644 index 0000000..c2ad88e --- /dev/null +++ b/gdb/testsuite/gdb.python/py-format-string.py @@ -0,0 +1,49 @@ +# Copyright (C) 2008-2019 Free Software Foundation, Inc. + +# 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 . + +# This file is part of the GDB testsuite. It tests python pretty +# printers. + +import gdb + +class PointPrinter (object): + def __init__ (self, val): + self.val = val + + def to_string (self): + return 'Pretty Point (%s, %s)' % (self.val['x'], self.val['y']) + +def test_lookup_function (val): + "Look-up and return a pretty-printer that can print val." + + # Get the type. + type = val.type + + # If it points to a reference, get the reference. + if type.code == gdb.TYPE_CODE_REF: + type = type.target () + + # Get the unqualified type, stripped of typedefs. + type = type.unqualified ().strip_typedefs () + + # Get the type name. + typename = type.tag + + if typename == 'point': + return PointPrinter (val) + + return None + +gdb.pretty_printers.append (test_lookup_function) -- cgit v1.1