30c38c90bd
Add a brief comment describing how to use the debug support from GDB. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1439574392-4403-5-git-send-email-peter.maydell@linaro.org
44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
#!/usr/bin/python
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# GDB debugging support
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#
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# Copyright 2012 Red Hat, Inc. and/or its affiliates
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#
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# Authors:
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# Avi Kivity <avi@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2. See
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# the COPYING file in the top-level directory.
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#
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# Contributions after 2012-01-13 are licensed under the terms of the
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# GNU GPL, version 2 or (at your option) any later version.
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# Usage:
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# At the (gdb) prompt, type "source scripts/qemu-gdb.py".
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# "help qemu" should then list the supported QEMU debug support commands.
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import gdb
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import os, sys
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# Annoyingly, gdb doesn't put the directory of scripts onto the
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# module search path. Do it manually.
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sys.path.append(os.path.dirname(__file__))
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from qemugdb import mtree, coroutine
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class QemuCommand(gdb.Command):
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'''Prefix for QEMU debug support commands'''
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def __init__(self):
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gdb.Command.__init__(self, 'qemu', gdb.COMMAND_DATA,
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gdb.COMPLETE_NONE, True)
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QemuCommand()
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coroutine.CoroutineCommand()
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mtree.MtreeCommand()
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# Default to silently passing through SIGUSR1, because QEMU sends it
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# to itself a lot.
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gdb.execute('handle SIGUSR1 pass noprint nostop')
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