diff options
Diffstat (limited to 'qemu/scripts/qemugdb/aio.py')
-rw-r--r-- | qemu/scripts/qemugdb/aio.py | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/qemu/scripts/qemugdb/aio.py b/qemu/scripts/qemugdb/aio.py deleted file mode 100644 index 2ba00c444..000000000 --- a/qemu/scripts/qemugdb/aio.py +++ /dev/null @@ -1,58 +0,0 @@ -#!/usr/bin/python - -# GDB debugging support: aio/iohandler debug -# -# Copyright (c) 2015 Red Hat, Inc. -# -# Author: Dr. David Alan Gilbert <dgilbert@redhat.com> -# -# This work is licensed under the terms of the GNU GPL, version 2 or -# later. See the COPYING file in the top-level directory. -# - -import gdb -from qemugdb import coroutine - -def isnull(ptr): - return ptr == gdb.Value(0).cast(ptr.type) - -def dump_aiocontext(context, verbose): - '''Display a dump and backtrace for an aiocontext''' - cur = context['aio_handlers']['lh_first'] - # Get pointers to functions we're going to process specially - sym_fd_coroutine_enter = gdb.parse_and_eval('fd_coroutine_enter') - - while not isnull(cur): - entry = cur.dereference() - gdb.write('----\n%s\n' % entry) - if verbose and cur['io_read'] == sym_fd_coroutine_enter: - coptr = (cur['opaque'].cast(gdb.lookup_type('FDYieldUntilData').pointer()))['co'] - coptr = coptr.cast(gdb.lookup_type('CoroutineUContext').pointer()) - coroutine.bt_jmpbuf(coptr['env']['__jmpbuf']) - cur = cur['node']['le_next']; - - gdb.write('----\n') - -class HandlersCommand(gdb.Command): - '''Display aio handlers''' - def __init__(self): - gdb.Command.__init__(self, 'qemu handlers', gdb.COMMAND_DATA, - gdb.COMPLETE_NONE) - - def invoke(self, arg, from_tty): - verbose = False - argv = gdb.string_to_argv(arg) - - if len(argv) > 0 and argv[0] == '--verbose': - verbose = True - argv.pop(0) - - if len(argv) > 1: - gdb.write('usage: qemu handlers [--verbose] [handler]\n') - return - - if len(argv) == 1: - handlers_name = argv[0] - else: - handlers_name = 'qemu_aio_context' - dump_aiocontext(gdb.parse_and_eval(handlers_name), verbose) |