source: rtems-tools/tools/gdb/python/chains.py @ 3162858

4.104.11
Last change on this file since 3162858 was 3162858, checked in by Chris Johns <chrisj@…>, on Aug 26, 2014 at 4:57:57 AM

gdb-python: Update so 'rtems task' lists the classic tasks.

This is a first pass at cleaning up the support. To use:

$ waf configure --prefix=$HOME/development/rtems/4.11
$ waf build install

Start GDB and break at Init:

(gdb) py import rtems
(gdb) rtems task

will list the classic API tasks.

  • Property mode set to 100644
File size: 2.5 KB
Line 
1# RTEMS Tools Project (http://www.rtems.org/)
2# Copyright 2010-2014 Chris Johns (chrisj@rtems.org)
3# All rights reserved.
4#
5# This file is part of the RTEMS Tools package in 'rtems-tools'.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions are met:
9#
10# 1. Redistributions of source code must retain the above copyright notice,
11# this list of conditions and the following disclaimer.
12#
13# 2. Redistributions in binary form must reproduce the above copyright notice,
14# this list of conditions and the following disclaimer in the documentation
15# and/or other materials provided with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27# POSSIBILITY OF SUCH DAMAGE.
28#
29
30#
31# RTEMS Chains Support
32#
33
34import gdb
35
36class node:
37    """Manage the Chain_Node."""
38
39    def __init__(self, node_val):
40        self.node_val = node_val
41
42    def null(self):
43        if not self.node_val:
44            return True
45        return False
46
47    def next(self):
48        if not self.null():
49            self.node_val = self.node_val['next']
50
51    def previous(self):
52        if not self.null():
53            self.node_val = self.node_val['previous']
54
55    def cast(self, typename):
56        if not self.null():
57            nodetype = gdb.lookup_type(typename)
58            return self.node_val.cast(nodetype)
59        return None
60
61    def to_string(self):
62        return self.node_val['next'] + "Prev: "+self.node_val['previous']
63
64class control:
65    """Manage the Chain_Control."""
66
67    def __init__(self, ctrl):
68        self.ctrl = ctrl
69
70    def first(self):
71        t = node(self.ctrl['Head']['Node'])
72        return t
73
74    def last(self):
75        return node(self.ctrl['Tail']['Node'])
76
77    def empty(self):
78        if self.last() == self.first().next():
79            return True
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