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Diffstat (limited to 'tools/gdb/python/percpu.py')
-rw-r--r-- | tools/gdb/python/percpu.py | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tools/gdb/python/percpu.py b/tools/gdb/python/percpu.py new file mode 100644 index 0000000..991bdf8 --- /dev/null +++ b/tools/gdb/python/percpu.py @@ -0,0 +1,57 @@ +# RTEMS Tools Project (http://www.rtems.org/) +# Copyright 2014 Chris Johns (chrisj@rtems.org) +# All rights reserved. +# +# This file is part of the RTEMS Tools package in 'rtems-tools'. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# + +# +# RTEMS Per CPU Table +# + +import gdb + +import configuration + +def _table(cpu): + max_cpus = configuration.maximum_processors() + if cpu >= max_cpus: + raise IndexError('cpu index out of range (%d)' % (max_cpus)) + return gdb.parse_and_eval('_Per_CPU_Information[%d].per_cpu' % (cpu)) + +def get(cpu): + return _table(cpu) + +def thread_active(thread): + for cpu in range(0, configuration.maximum_processors()): + if thread == _table(cpu)['executing']: + return cpu + return -1 + +def thread_heir(thread): + for cpu in range(0, configuration.maximum_processors()): + if thread == _table(cpu)['heir']: + return cpu + return -1 |