xref: /openbmc/openbmc/poky/meta/lib/oeqa/utils/dump.py (revision fc81e38a) 
1import os
2import sys
3import errno
4import datetime
5import itertools
6from .commands import runCmd
7
8class BaseDumper(object):
9    """ Base class to dump commands from host/target """
10
11    def __init__(self, cmds, parent_dir):
12        self.cmds = []
13        # Some testing doesn't inherit testimage, so it is needed
14        # to set some defaults.
15        self.parent_dir = parent_dir
16        dft_cmds = """  top -bn1
17                        iostat -x -z -N -d -p ALL 20 2
18                        ps -ef
19                        free
20                        df
21                        memstat
22                        dmesg
23                        ip -s link
24                        netstat -an"""
25        if not cmds:
26            cmds = dft_cmds
27        for cmd in cmds.split('\n'):
28            cmd = cmd.lstrip()
29            if not cmd or cmd[0] == '#':
30                continue
31            self.cmds.append(cmd)
32
33    def create_dir(self, dir_suffix):
34        dump_subdir = ("%s_%s" % (
35                datetime.datetime.now().strftime('%Y%m%d%H%M'),
36                dir_suffix))
37        dump_dir = os.path.join(self.parent_dir, dump_subdir)
38        try:
39            os.makedirs(dump_dir)
40        except OSError as err:
41            if err.errno != errno.EEXIST:
42                raise err
43        self.dump_dir = dump_dir
44
45    def _write_dump(self, command, output):
46        if isinstance(self, HostDumper):
47            prefix = "host"
48        elif isinstance(self, TargetDumper):
49            prefix = "target"
50        else:
51            prefix = "unknown"
52        for i in itertools.count():
53            filename = "%s_%02d_%s" % (prefix, i, command)
54            fullname = os.path.join(self.dump_dir, filename)
55            if not os.path.exists(fullname):
56                break
57        with open(fullname, 'w') as dump_file:
58            dump_file.write(output)
59
60
61class HostDumper(BaseDumper):
62    """ Class to get dumps from the host running the tests """
63
64    def __init__(self, cmds, parent_dir):
65        super(HostDumper, self).__init__(cmds, parent_dir)
66
67    def dump_host(self, dump_dir=""):
68        if dump_dir:
69            self.dump_dir = dump_dir
70        for cmd in self.cmds:
71            result = runCmd(cmd, ignore_status=True)
72            self._write_dump(cmd.split()[0], result.output)
73
74class TargetDumper(BaseDumper):
75    """ Class to get dumps from target, it only works with QemuRunner """
76
77    def __init__(self, cmds, parent_dir, runner):
78        super(TargetDumper, self).__init__(cmds, parent_dir)
79        self.runner = runner
80
81    def dump_target(self, dump_dir=""):
82        if dump_dir:
83            self.dump_dir = dump_dir
84        for cmd in self.cmds:
85            # We can continue with the testing if serial commands fail
86            try:
87                (status, output) = self.runner.run_serial(cmd)
88                self._write_dump(cmd.split()[0], output)
89            except:
90                print("Tried to dump info from target but "
91                        "serial console failed")
92