qemu-cr16/scripts/qemugdb/tcg.py
Paolo Bonzini 20b92da6db treewide: remove unnessary "coding" header
The "-*- coding: utf-8 -*-" header was needed in Python 2,
but in Python 3 UTF-8 is already the default encoding of
source files.

It is even less necessary in .css files that do not have UTF-8
sequences at all.

Suggested-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-4-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-10-01 11:22:07 -04:00

40 lines
1.4 KiB
Python

# GDB debugging support, TCG status
#
# Copyright 2016 Linaro Ltd
#
# Authors:
# Alex Bennée <alex.bennee@linaro.org>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
# 'qemu tcg-lock-status' -- display the TCG lock status across threads
import gdb
class TCGLockStatusCommand(gdb.Command):
'''Display TCG Execution Status'''
def __init__(self):
gdb.Command.__init__(self, 'qemu tcg-lock-status', gdb.COMMAND_DATA,
gdb.COMPLETE_NONE)
def invoke(self, arg, from_tty):
gdb.write("Thread, BQL (iothread_mutex), Replay, Blocked?\n")
for thread in gdb.inferiors()[0].threads():
thread.switch()
iothread = gdb.parse_and_eval("iothread_locked")
replay = gdb.parse_and_eval("replay_locked")
frame = gdb.selected_frame()
if frame.name() == "__lll_lock_wait":
frame.older().select()
mutex = gdb.parse_and_eval("mutex")
owner = gdb.parse_and_eval("mutex->__data.__owner")
blocked = ("__lll_lock_wait waiting on %s from %d" %
(mutex, owner))
else:
blocked = "not blocked"
gdb.write("%d/%d, %s, %s, %s\n" % (thread.num, thread.ptid[1],
iothread, replay, blocked))