From 437fd90c0250dee670290f9b714253671a990160 Mon Sep 17 00:00:00 2001
From: José Pekkarinen <jose.pekkarinen@nokia.com>
Date: Wed, 18 May 2016 13:18:31 +0300
Subject: These changes are the raw update to qemu-2.6.
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Collission happened in the following patches:

migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)

The code provided by the patches was already in the upstreamed
version.

Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
---
 qemu/scripts/qemugdb/aio.py | 58 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 qemu/scripts/qemugdb/aio.py

(limited to 'qemu/scripts/qemugdb/aio.py')

diff --git a/qemu/scripts/qemugdb/aio.py b/qemu/scripts/qemugdb/aio.py
new file mode 100644
index 000000000..2ba00c444
--- /dev/null
+++ b/qemu/scripts/qemugdb/aio.py
@@ -0,0 +1,58 @@
+#!/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)
-- 
cgit 1.2.3-korg