qemu/scripts/qemugdb/tcg.py
Philippe Mathieu-Daudé 6acc5c0469 scripts/qemugdb: Remove shebang header
These scripts are loaded as plugin by GDB (and they don't
have any __main__ entry point). Remove the shebang header.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 13:56:46 +02:00

43 lines
1.4 KiB
Python

# -*- coding: utf-8 -*-
#
# 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))