Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1'''
2run the command under test, under valgrind and collect memory leak info
3as a separate test.
4'''
5
6
7import os
8import re
9import signal
10from string import Template
11import subprocess
12import time
13from TdcPlugin import TdcPlugin
14from TdcResults import *
15
16from tdc_config import *
17
18def vp_extract_num_from_string(num_as_string_maybe_with_commas):
19 return int(num_as_string_maybe_with_commas.replace(',',''))
20
21class SubPlugin(TdcPlugin):
22 def __init__(self):
23 self.sub_class = 'valgrind/SubPlugin'
24 self.tap = ''
25 self._tsr = TestSuiteReport()
26 super().__init__()
27
28 def pre_suite(self, testcount, testidlist):
29 '''run commands before test_runner goes into a test loop'''
30 super().pre_suite(testcount, testidlist)
31 if self.args.verbose > 1:
32 print('{}.pre_suite'.format(self.sub_class))
33 if self.args.valgrind:
34 self._add_to_tap('1..{}\n'.format(self.testcount))
35
36 def post_suite(self, index):
37 '''run commands after test_runner goes into a test loop'''
38 super().post_suite(index)
39 if self.args.verbose > 1:
40 print('{}.post_suite'.format(self.sub_class))
41 #print('{}'.format(self.tap))
42 for xx in range(index - 1, self.testcount):
43 res = TestResult('{}-mem'.format(self.testidlist[xx]), 'Test skipped')
44 res.set_result(ResultState.skip)
45 res.set_errormsg('Skipped because of prior setup/teardown failure')
46 self._add_results(res)
47 if self.args.verbose < 4:
48 subprocess.check_output('rm -f vgnd-*.log', shell=True)
49
50 def add_args(self, parser):
51 super().add_args(parser)
52 self.argparser_group = self.argparser.add_argument_group(
53 'valgrind',
54 'options for valgrindPlugin (run command under test under Valgrind)')
55
56 self.argparser_group.add_argument(
57 '-V', '--valgrind', action='store_true',
58 help='Run commands under valgrind')
59
60 return self.argparser
61
62 def adjust_command(self, stage, command):
63 super().adjust_command(stage, command)
64 cmdform = 'list'
65 cmdlist = list()
66
67 if not self.args.valgrind:
68 return command
69
70 if self.args.verbose > 1:
71 print('{}.adjust_command'.format(self.sub_class))
72
73 if not isinstance(command, list):
74 cmdform = 'str'
75 cmdlist = command.split()
76 else:
77 cmdlist = command
78
79 if stage == 'execute':
80 if self.args.verbose > 1:
81 print('adjust_command: stage is {}; inserting valgrind stuff in command [{}] list [{}]'.
82 format(stage, command, cmdlist))
83 cmdlist.insert(0, '--track-origins=yes')
84 cmdlist.insert(0, '--show-leak-kinds=definite,indirect')
85 cmdlist.insert(0, '--leak-check=full')
86 cmdlist.insert(0, '--log-file=vgnd-{}.log'.format(self.args.testid))
87 cmdlist.insert(0, '-v') # ask for summary of non-leak errors
88 cmdlist.insert(0, ENVIR['VALGRIND_BIN'])
89 else:
90 pass
91
92 if cmdform == 'str':
93 command = ' '.join(cmdlist)
94 else:
95 command = cmdlist
96
97 if self.args.verbose > 1:
98 print('adjust_command: return command [{}]'.format(command))
99 return command
100
101 def post_execute(self):
102 if not self.args.valgrind:
103 return
104
105 self.definitely_lost_re = re.compile(
106 r'definitely lost:\s+([,0-9]+)\s+bytes in\s+([,0-9]+)\sblocks', re.MULTILINE | re.DOTALL)
107 self.indirectly_lost_re = re.compile(
108 r'indirectly lost:\s+([,0-9]+)\s+bytes in\s+([,0-9]+)\s+blocks', re.MULTILINE | re.DOTALL)
109 self.possibly_lost_re = re.compile(
110 r'possibly lost:\s+([,0-9]+)bytes in\s+([,0-9]+)\s+blocks', re.MULTILINE | re.DOTALL)
111 self.non_leak_error_re = re.compile(
112 r'ERROR SUMMARY:\s+([,0-9]+) errors from\s+([,0-9]+)\s+contexts', re.MULTILINE | re.DOTALL)
113
114 def_num = 0
115 ind_num = 0
116 pos_num = 0
117 nle_num = 0
118
119 # what about concurrent test runs? Maybe force them to be in different directories?
120 with open('vgnd-{}.log'.format(self.args.testid)) as vfd:
121 content = vfd.read()
122 def_mo = self.definitely_lost_re.search(content)
123 ind_mo = self.indirectly_lost_re.search(content)
124 pos_mo = self.possibly_lost_re.search(content)
125 nle_mo = self.non_leak_error_re.search(content)
126
127 if def_mo:
128 def_num = int(def_mo.group(2))
129 if ind_mo:
130 ind_num = int(ind_mo.group(2))
131 if pos_mo:
132 pos_num = int(pos_mo.group(2))
133 if nle_mo:
134 nle_num = int(nle_mo.group(1))
135
136 mem_results = ''
137 res = TestResult('{}-mem'.format(self.args.testid),
138 '{} memory leak check'.format(self.args.test_name))
139 if (def_num > 0) or (ind_num > 0) or (pos_num > 0) or (nle_num > 0):
140 mem_results += 'not '
141 res.set_result(ResultState.fail)
142 res.set_failmsg('Memory leak detected')
143 res.append_failmsg(content)
144 else:
145 res.set_result(ResultState.success)
146
147 self._add_results(res)
148
149 mem_results += 'ok {} - {}-mem # {}\n'.format(
150 self.args.test_ordinal, self.args.testid, 'memory leak check')
151 self._add_to_tap(mem_results)
152 if mem_results.startswith('not '):
153 print('{}'.format(content))
154 self._add_to_tap(content)
155
156 def _add_results(self, res):
157 self._tsr.add_resultdata(res)
158
159 def _add_to_tap(self, more_tap_output):
160 self.tap += more_tap_output