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