Test library load/unload events
[lttng-tools.git] / tests / regression / ust / ust-dl / test_ust-dl.py
1 #!/usr/bin/env python3
2 #
3 # Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 # Copyright (C) - 2015 Antoine Busque <abusque@efficios.com>
5 #
6 # This program is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License, version 2 only, as
8 # published by the Free Software Foundation.
9 #
10 # This program is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 # more details.
14 #
15 # You should have received a copy of the GNU General Public License along with
16 # this program; if not, write to the Free Software Foundation, Inc., 51
17 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18
19 import os
20 import subprocess
21 import re
22 import shutil
23 import sys
24
25 test_path = os.path.dirname(os.path.abspath(__file__)) + "/"
26 test_utils_path = test_path
27 for i in range(4):
28 test_utils_path = os.path.dirname(test_utils_path)
29 test_utils_path = test_utils_path + "/utils"
30 sys.path.append(test_utils_path)
31 from test_utils import *
32
33
34 NR_TESTS = 11
35 current_test = 1
36 print("1..{0}".format(NR_TESTS))
37
38 # Check if a sessiond is running... bail out if none found.
39 if session_daemon_alive() == 0:
40 bail("""No sessiond running. Please make sure you are running this test
41 with the "run" shell script and verify that the lttng tools are
42 properly installed.""")
43
44 session_info = create_session()
45 enable_ust_tracepoint_event(session_info, "*")
46 start_session(session_info)
47
48 test_env = os.environ.copy()
49 test_env["LD_PRELOAD"] = test_env.get("LD_PRELOAD", "") + ":liblttng-ust-dl.so"
50 test_env["LD_LIBRARY_PATH"] = test_env.get("LD_LIBRARY_PATH", "") + ":" + test_path
51 test_process = subprocess.Popen(test_path + "prog",
52 stdout=subprocess.PIPE, stderr=subprocess.PIPE,
53 env=test_env)
54 test_process.wait()
55
56 print_test_result(test_process.returncode == 0, current_test, "Test application exited normally")
57 current_test += 1
58
59 stop_session(session_info)
60
61 # Check for dl events in the resulting trace
62 try:
63 babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
64 except FileNotFoundError:
65 bail("Could not open babeltrace. Please make sure it is installed.", session_info)
66
67 dlopen_event_found = 0
68 dlmopen_event_found = 0
69 build_id_event_found = 0
70 debug_link_event_found = 0
71 dlclose_event_found = 0
72 load_event_found = 0
73 load_build_id_event_found = 0
74 load_debug_link_event_found = 0
75 unload_event_found = 0
76 load_libfoo_found = 0
77 load_libbar_found = 0
78 load_libzzz_found = 0
79
80 for event_line in babeltrace_process.stdout:
81
82 event_line = event_line.decode('utf-8').replace("\n", "")
83 if re.search(r".*lttng_ust_dl:dlopen.*", event_line) is not None:
84 dlopen_event_found += 1
85 elif re.search(r".*lttng_ust_dl:dlmopen.*", event_line) is not None:
86 dlmopen_event_found += 1
87 elif re.search(r".*lttng_ust_dl:build_id.*", event_line) is not None:
88 build_id_event_found += 1
89 elif re.search(r".*lttng_ust_dl:debug_link.*", event_line) is not None:
90 debug_link_event_found += 1
91 elif re.search(r".*lttng_ust_dl:dlclose.*", event_line) is not None:
92 dlclose_event_found += 1
93 elif re.search(r".*lttng_ust_lib:build_id.*", event_line) is not None:
94 load_build_id_event_found += 1
95 elif re.search(r".*lttng_ust_lib:debug_link.*", event_line) is not None:
96 load_debug_link_event_found += 1
97 elif re.search(r".*lttng_ust_lib:unload.*", event_line) is not None:
98 unload_event_found += 1
99 elif re.search(r".*lttng_ust_lib:load.*", event_line) is not None:
100 load_event_found += 1
101 if re.search(r".*lttng_ust_lib:load.*libfoo.*", event_line) is not None:
102 load_libfoo_found += 1
103 elif re.search(r".*lttng_ust_lib:load.*libbar.*", event_line) is not None:
104 load_libbar_found += 1
105 elif re.search(r".*lttng_ust_lib:load.*libzzz.*", event_line) is not None:
106 load_libzzz_found += 1
107
108 babeltrace_process.wait()
109
110 print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable")
111 current_test += 1
112
113 print_test_result(dlopen_event_found > 0, current_test, "lttng_ust_dl:dlopen event found in resulting trace")
114 current_test += 1
115
116 print_test_result(dlmopen_event_found > 0, current_test, "lttng_ust_dl:dlmopen event found in resulting trace")
117 current_test += 1
118
119 print_test_result(build_id_event_found > 0, current_test, "lttng_ust_dl:build_id event found in resulting trace")
120 current_test += 1
121
122 print_test_result(debug_link_event_found > 0, current_test, "lttng_ust_dl:debug_link event found in resulting trace")
123 current_test += 1
124
125 print_test_result(dlclose_event_found > 0, current_test, "lttng_ust_dl:dlclose event found in resulting trace")
126 current_test += 1
127
128 print_test_result(load_event_found > 0, current_test, "lttng_ust_lib:load event found in resulting trace")
129 current_test += 1
130
131 print_test_result(load_build_id_event_found > 0, current_test, "lttng_ust_lib:build_id event found in resulting trace")
132 current_test += 1
133
134 print_test_result(load_debug_link_event_found > 0, current_test, "lttng_ust_lib:debug_link event found in resulting trace")
135 current_test += 1
136
137 print_test_result(unload_event_found == 3, current_test, "lttng_ust_lib:unload event found 3 times in resulting trace")
138 current_test += 1
139
140 print_test_result(load_libfoo_found == 1, current_test, "lttng_ust_lib:load libfoo.so event found once in resulting trace")
141 current_test += 1
142
143 print_test_result(load_libbar_found == 1, current_test, "lttng_ust_lib:load libbar.so event found once in resulting trace")
144 current_test += 1
145
146 print_test_result(load_libzzz_found == 1, current_test, "lttng_ust_lib:load libzzz.so event found once in resulting trace")
147 current_test += 1
148
149 shutil.rmtree(session_info.tmp_directory)
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