Commit | Line | Data |
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01654d69 JR |
1 | #!/bin/bash |
2 | # | |
4942c256 | 3 | # Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> |
01654d69 | 4 | # |
9d16b343 MJ |
5 | # SPDX-License-Identifier: LGPL-2.1-only |
6 | ||
01654d69 JR |
7 | TEST_DESC="Metadata env - Kernel space tracing" |
8 | ||
9 | CURDIR=$(dirname "$0")/ | |
10 | TESTDIR=$CURDIR/../../.. | |
11 | EVENT_NAME="lttng_test_filter_event" | |
12 | ||
13 | TRACE_PATH=$(mktemp -d) | |
14 | ||
15 | NUM_TESTS=13 | |
16 | ||
17 | source "$TESTDIR/utils/utils.sh" | |
18 | ||
19 | # Fetch utils functions common to ust and kernel tests. | |
20 | source "$CURDIR/utils.sh" | |
21 | ||
22 | function test_kernel () | |
23 | { | |
24 | local metadata | |
25 | local metadata_env | |
26 | local metadata_path | |
27 | local value | |
28 | ||
29 | local expected_path="${TRACE_PATH}/lttng-traces" | |
30 | local session_name="kernel" | |
31 | ||
32 | metadata=$(mktemp) | |
33 | metadata_env=$(mktemp) | |
34 | ||
35 | diag "Test Kernel metadata env field" | |
36 | create_lttng_session_ok "$session_name" | |
37 | enable_kernel_lttng_event_ok "$session_name" "$EVENT_NAME" | |
38 | start_lttng_tracing_ok "$session_name" | |
39 | ||
40 | echo -n "10" > /proc/lttng-test-filter-event | |
41 | ||
42 | stop_lttng_tracing_ok "$session_name" | |
43 | destroy_lttng_session_ok "$session_name" | |
44 | ||
45 | # bt1 accepts only a directory while bt2 accepts either the metadata | |
46 | # file directly or a directory with an immediate metadata file. | |
47 | # Settle for the common denominator. | |
48 | metadata_path=$(find "${expected_path}/${session_name}"* | grep metadata) | |
49 | metadata_path=$(dirname "$metadata_path") | |
50 | ||
51 | $BABELTRACE_BIN --output-format=ctf-metadata "${metadata_path}" > "$metadata" | |
52 | ||
53 | # Extract "env" scope | |
54 | awk '/env {/,/};/' < "$metadata" > "$metadata_env" | |
55 | ||
56 | # Construct the expected path from the env metadata and use it to | |
57 | # validate that all information make sense. This information is present | |
58 | # to allow trace viewer to recreate the same directory hierarchy. | |
59 | ||
60 | # Trace name | |
61 | value=$(get_env_value "$metadata_env" trace_name) | |
62 | ok $? "Extracting trace_name from env metadata" | |
63 | expected_path="${expected_path}/${value}" | |
64 | ||
65 | # Session creation time | |
66 | value=$(get_env_value "$metadata_env" trace_creation_datetime) | |
67 | ok $? "Extracting trace_creation_datetime from env metadata" | |
68 | value=$(iso8601_to_lttng_dir_datetime "$value") | |
69 | expected_path="${expected_path}-${value}" | |
70 | ||
71 | # Domain | |
72 | value=$(get_env_value "$metadata_env" domain) | |
73 | ok $? "Extracting domain from env metadata" | |
74 | expected_path="${expected_path}/${value}" | |
75 | ||
76 | # Append "metadata" and test that we find the file. | |
77 | expected_path="${expected_path}/metadata" | |
78 | ||
79 | test -e "$expected_path" | |
80 | ok $? "Reconstructed path from metadata is valid" | |
81 | ||
82 | # Hostname | |
83 | # The hostname is not part of the lttng hierarchy still we can test for | |
84 | # its validity here. | |
85 | value=$(get_env_value "$metadata_env" hostname) | |
86 | ok $? "Extracting hostname from env metadata" | |
87 | is "$value" "$(hostname)" "Hostname is valid" | |
88 | ||
89 | rm -f "$metadata" | |
90 | rm -f "$metadata_env" | |
91 | } | |
92 | ||
93 | plan_tests $NUM_TESTS | |
94 | print_test_banner "$TEST_DESC" | |
95 | ||
96 | ||
97 | if [ "$(id -u)" == "0" ]; then | |
98 | isroot=1 | |
99 | else | |
100 | isroot=0 | |
101 | fi | |
102 | ||
103 | skip $isroot "Root access is needed. Skipping all kernel metadata tests." $NUM_TESTS || | |
104 | { | |
105 | validate_lttng_modules_present | |
106 | modprobe lttng-test | |
107 | ||
108 | # Use LTTNG_HOME since we want the complete "default" lttng directory hierarchy | |
109 | # with "<session_name>-<datetime>/...". | |
110 | LTTNG_HOME="$TRACE_PATH" | |
111 | ||
112 | export LTTNG_HOME | |
113 | start_lttng_sessiond | |
114 | ||
115 | tests=( test_kernel ) | |
116 | ||
117 | for fct_test in "${tests[@]}"; | |
118 | do | |
119 | ${fct_test} | |
120 | done | |
121 | ||
122 | rmmod lttng-test | |
123 | ||
124 | stop_lttng_sessiond | |
125 | unset LTTNG_HOME | |
126 | } | |
127 | ||
128 | rm -rf "$TRACE_PATH" |