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01654d69 JR |
1 | #!/bin/bash |
2 | # | |
3 | # Copyright (C) - 2019 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com> | |
4 | # | |
5 | # This library is free software; you can redistribute it and/or modify it under | |
6 | # the terms of the GNU Lesser General Public License as published by the Free | |
7 | # Software Foundation; version 2.1 of the License. | |
8 | # | |
9 | # This library is distributed in the hope that it will be useful, but WITHOUT | |
10 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
11 | # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more | |
12 | # details. | |
13 | # | |
14 | # You should have received a copy of the GNU Lesser General Public License | |
15 | # along with this library; if not, write to the Free Software Foundation, Inc., | |
16 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | TEST_DESC="Metadata env - Kernel space tracing" | |
18 | ||
19 | CURDIR=$(dirname "$0")/ | |
20 | TESTDIR=$CURDIR/../../.. | |
21 | EVENT_NAME="lttng_test_filter_event" | |
22 | ||
23 | TRACE_PATH=$(mktemp -d) | |
24 | ||
25 | NUM_TESTS=13 | |
26 | ||
27 | source "$TESTDIR/utils/utils.sh" | |
28 | ||
29 | # Fetch utils functions common to ust and kernel tests. | |
30 | source "$CURDIR/utils.sh" | |
31 | ||
32 | function test_kernel () | |
33 | { | |
34 | local metadata | |
35 | local metadata_env | |
36 | local metadata_path | |
37 | local value | |
38 | ||
39 | local expected_path="${TRACE_PATH}/lttng-traces" | |
40 | local session_name="kernel" | |
41 | ||
42 | metadata=$(mktemp) | |
43 | metadata_env=$(mktemp) | |
44 | ||
45 | diag "Test Kernel metadata env field" | |
46 | create_lttng_session_ok "$session_name" | |
47 | enable_kernel_lttng_event_ok "$session_name" "$EVENT_NAME" | |
48 | start_lttng_tracing_ok "$session_name" | |
49 | ||
50 | echo -n "10" > /proc/lttng-test-filter-event | |
51 | ||
52 | stop_lttng_tracing_ok "$session_name" | |
53 | destroy_lttng_session_ok "$session_name" | |
54 | ||
55 | # bt1 accepts only a directory while bt2 accepts either the metadata | |
56 | # file directly or a directory with an immediate metadata file. | |
57 | # Settle for the common denominator. | |
58 | metadata_path=$(find "${expected_path}/${session_name}"* | grep metadata) | |
59 | metadata_path=$(dirname "$metadata_path") | |
60 | ||
61 | $BABELTRACE_BIN --output-format=ctf-metadata "${metadata_path}" > "$metadata" | |
62 | ||
63 | # Extract "env" scope | |
64 | awk '/env {/,/};/' < "$metadata" > "$metadata_env" | |
65 | ||
66 | # Construct the expected path from the env metadata and use it to | |
67 | # validate that all information make sense. This information is present | |
68 | # to allow trace viewer to recreate the same directory hierarchy. | |
69 | ||
70 | # Trace name | |
71 | value=$(get_env_value "$metadata_env" trace_name) | |
72 | ok $? "Extracting trace_name from env metadata" | |
73 | expected_path="${expected_path}/${value}" | |
74 | ||
75 | # Session creation time | |
76 | value=$(get_env_value "$metadata_env" trace_creation_datetime) | |
77 | ok $? "Extracting trace_creation_datetime from env metadata" | |
78 | value=$(iso8601_to_lttng_dir_datetime "$value") | |
79 | expected_path="${expected_path}-${value}" | |
80 | ||
81 | # Domain | |
82 | value=$(get_env_value "$metadata_env" domain) | |
83 | ok $? "Extracting domain from env metadata" | |
84 | expected_path="${expected_path}/${value}" | |
85 | ||
86 | # Append "metadata" and test that we find the file. | |
87 | expected_path="${expected_path}/metadata" | |
88 | ||
89 | test -e "$expected_path" | |
90 | ok $? "Reconstructed path from metadata is valid" | |
91 | ||
92 | # Hostname | |
93 | # The hostname is not part of the lttng hierarchy still we can test for | |
94 | # its validity here. | |
95 | value=$(get_env_value "$metadata_env" hostname) | |
96 | ok $? "Extracting hostname from env metadata" | |
97 | is "$value" "$(hostname)" "Hostname is valid" | |
98 | ||
99 | rm -f "$metadata" | |
100 | rm -f "$metadata_env" | |
101 | } | |
102 | ||
103 | plan_tests $NUM_TESTS | |
104 | print_test_banner "$TEST_DESC" | |
105 | ||
106 | ||
107 | if [ "$(id -u)" == "0" ]; then | |
108 | isroot=1 | |
109 | else | |
110 | isroot=0 | |
111 | fi | |
112 | ||
113 | skip $isroot "Root access is needed. Skipping all kernel metadata tests." $NUM_TESTS || | |
114 | { | |
115 | validate_lttng_modules_present | |
116 | modprobe lttng-test | |
117 | ||
118 | # Use LTTNG_HOME since we want the complete "default" lttng directory hierarchy | |
119 | # with "<session_name>-<datetime>/...". | |
120 | LTTNG_HOME="$TRACE_PATH" | |
121 | ||
122 | export LTTNG_HOME | |
123 | start_lttng_sessiond | |
124 | ||
125 | tests=( test_kernel ) | |
126 | ||
127 | for fct_test in "${tests[@]}"; | |
128 | do | |
129 | ${fct_test} | |
130 | done | |
131 | ||
132 | rmmod lttng-test | |
133 | ||
134 | stop_lttng_sessiond | |
135 | unset LTTNG_HOME | |
136 | } | |
137 | ||
138 | rm -rf "$TRACE_PATH" |