177 lines
6.4 KiB
Python
177 lines
6.4 KiB
Python
|
# Copyright (C) 2015 Intel Corporation
|
||
|
|
#
|
||
|
|
# Released under the MIT license (see COPYING.MIT)
|
||
|
|
|
||
|
|
# This module provides a class for starting qemu images of poky tiny.
|
||
|
|
# It's used by testimage.bbclass.
|
||
|
|
|
||
|
|
import subprocess
|
||
|
|
import os
|
||
|
|
import time
|
||
|
|
import signal
|
||
|
|
import re
|
||
|
|
import socket
|
||
|
|
import select
|
||
|
|
import bb
|
||
|
|
from .qemurunner import QemuRunner
|
||
|
|
|
||
|
|
class QemuTinyRunner(QemuRunner):
|
||
|
|
|
||
|
|
def __init__(self, machine, rootfs, display, tmpdir, deploy_dir_image, logfile, kernel, boottime, logger):
|
||
|
|
|
||
|
|
# Popen object for runqemu
|
||
|
|
self.runqemu = None
|
||
|
|
# pid of the qemu process that runqemu will start
|
||
|
|
self.qemupid = None
|
||
|
|
# target ip - from the command line
|
||
|
|
self.ip = None
|
||
|
|
# host ip - where qemu is running
|
||
|
|
self.server_ip = None
|
||
|
|
|
||
|
|
self.machine = machine
|
||
|
|
self.rootfs = rootfs
|
||
|
|
self.display = display
|
||
|
|
self.tmpdir = tmpdir
|
||
|
|
self.deploy_dir_image = deploy_dir_image
|
||
|
|
self.logfile = logfile
|
||
|
|
self.boottime = boottime
|
||
|
|
|
||
|
|
self.runqemutime = 60
|
||
|
|
self.socketfile = "console.sock"
|
||
|
|
self.server_socket = None
|
||
|
|
self.kernel = kernel
|
||
|
|
self.logger = logger
|
||
|
|
|
||
|
|
|
||
|
|
def create_socket(self):
|
||
|
|
tries = 3
|
||
|
|
while tries > 0:
|
||
|
|
try:
|
||
|
|
self.server_socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
|
||
|
|
self.server_socket.connect(self.socketfile)
|
||
|
|
bb.note("Created listening socket for qemu serial console.")
|
||
|
|
tries = 0
|
||
|
|
except socket.error as msg:
|
||
|
|
self.server_socket.close()
|
||
|
|
bb.fatal("Failed to create listening socket.")
|
||
|
|
tries -= 1
|
||
|
|
|
||
|
|
def log(self, msg):
|
||
|
|
if self.logfile:
|
||
|
|
with open(self.logfile, "a") as f:
|
||
|
|
f.write("%s" % msg)
|
||
|
|
|
||
|
|
def start(self, qemuparams = None, ssh=True, extra_bootparams=None, runqemuparams='', discard_writes=True):
|
||
|
|
|
||
|
|
if self.display:
|
||
|
|
os.environ["DISPLAY"] = self.display
|
||
|
|
else:
|
||
|
|
bb.error("To start qemu I need a X desktop, please set DISPLAY correctly (e.g. DISPLAY=:1)")
|
||
|
|
return False
|
||
|
|
if not os.path.exists(self.rootfs):
|
||
|
|
bb.error("Invalid rootfs %s" % self.rootfs)
|
||
|
|
return False
|
||
|
|
if not os.path.exists(self.tmpdir):
|
||
|
|
bb.error("Invalid TMPDIR path %s" % self.tmpdir)
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
os.environ["OE_TMPDIR"] = self.tmpdir
|
||
|
|
if not os.path.exists(self.deploy_dir_image):
|
||
|
|
bb.error("Invalid DEPLOY_DIR_IMAGE path %s" % self.deploy_dir_image)
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
os.environ["DEPLOY_DIR_IMAGE"] = self.deploy_dir_image
|
||
|
|
|
||
|
|
# Set this flag so that Qemu doesn't do any grabs as SDL grabs interact
|
||
|
|
# badly with screensavers.
|
||
|
|
os.environ["QEMU_DONT_GRAB"] = "1"
|
||
|
|
self.qemuparams = '--append "root=/dev/ram0 console=ttyS0" -nographic -serial unix:%s,server,nowait' % self.socketfile
|
||
|
|
|
||
|
|
launch_cmd = 'qemu-system-i386 -kernel %s -initrd %s %s' % (self.kernel, self.rootfs, self.qemuparams)
|
||
|
|
self.runqemu = subprocess.Popen(launch_cmd,shell=True,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,preexec_fn=os.setpgrp)
|
||
|
|
|
||
|
|
bb.note("runqemu started, pid is %s" % self.runqemu.pid)
|
||
|
|
bb.note("waiting at most %s seconds for qemu pid" % self.runqemutime)
|
||
|
|
endtime = time.time() + self.runqemutime
|
||
|
|
while not self.is_alive() and time.time() < endtime:
|
||
|
|
time.sleep(1)
|
||
|
|
|
||
|
|
if self.is_alive():
|
||
|
|
bb.note("qemu started - qemu procces pid is %s" % self.qemupid)
|
||
|
|
self.create_socket()
|
||
|
|
else:
|
||
|
|
bb.note("Qemu pid didn't appeared in %s seconds" % self.runqemutime)
|
||
|
|
output = self.runqemu.stdout
|
||
|
|
self.stop()
|
||
|
|
bb.note("Output from runqemu:\n%s" % output.read().decode("utf-8"))
|
||
|
|
return False
|
||
|
|
|
||
|
|
return self.is_alive()
|
||
|
|
|
||
|
|
def run_serial(self, command, timeout=5):
|
||
|
|
self.server_socket.sendall(command+'\n')
|
||
|
|
data = ''
|
||
|
|
status = 0
|
||
|
|
stopread = False
|
||
|
|
endtime = time.time()+timeout
|
||
|
|
while time.time()<endtime and not stopread:
|
||
|
|
try:
|
||
|
|
sread, _, _ = select.select([self.server_socket],[],[],1)
|
||
|
|
except InterruptedError:
|
||
|
|
continue
|
||
|
|
for sock in sread:
|
||
|
|
answer = sock.recv(1024)
|
||
|
|
if answer:
|
||
|
|
data += answer
|
||
|
|
else:
|
||
|
|
sock.close()
|
||
|
|
stopread = True
|
||
|
|
if not data:
|
||
|
|
status = 1
|
||
|
|
if not stopread:
|
||
|
|
data += "<<< run_serial(): command timed out after %d seconds without output >>>\r\n\r\n" % timeout
|
||
|
|
return (status, str(data))
|
||
|
|
|
||
|
|
def find_child(self,parent_pid):
|
||
|
|
#
|
||
|
|
# Walk the process tree from the process specified looking for a qemu-system. Return its [pid'cmd]
|
||
|
|
#
|
||
|
|
ps = subprocess.Popen(['ps', 'axww', '-o', 'pid,ppid,command'], stdout=subprocess.PIPE).communicate()[0]
|
||
|
|
processes = ps.decode("utf-8").split('\n')
|
||
|
|
nfields = len(processes[0].split()) - 1
|
||
|
|
pids = {}
|
||
|
|
commands = {}
|
||
|
|
for row in processes[1:]:
|
||
|
|
data = row.split(None, nfields)
|
||
|
|
if len(data) != 3:
|
||
|
|
continue
|
||
|
|
if data[1] not in pids:
|
||
|
|
pids[data[1]] = []
|
||
|
|
|
||
|
|
pids[data[1]].append(data[0])
|
||
|
|
commands[data[0]] = data[2]
|
||
|
|
|
||
|
|
if parent_pid not in pids:
|
||
|
|
return []
|
||
|
|
|
||
|
|
parents = []
|
||
|
|
newparents = pids[parent_pid]
|
||
|
|
while newparents:
|
||
|
|
next = []
|
||
|
|
for p in newparents:
|
||
|
|
if p in pids:
|
||
|
|
for n in pids[p]:
|
||
|
|
if n not in parents and n not in next:
|
||
|
|
next.append(n)
|
||
|
|
if p not in parents:
|
||
|
|
parents.append(p)
|
||
|
|
newparents = next
|
||
|
|
#print("Children matching %s:" % str(parents))
|
||
|
|
for p in parents:
|
||
|
|
# Need to be careful here since runqemu runs "ldd qemu-system-xxxx"
|
||
|
|
# Also, old versions of ldd (2.11) run "LD_XXXX qemu-system-xxxx"
|
||
|
|
basecmd = commands[p].split()[0]
|
||
|
|
basecmd = os.path.basename(basecmd)
|
||
|
|
if "qemu-system" in basecmd and "-serial unix" in commands[p]:
|
||
|
|
return [int(p),commands[p]]
|