mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-18 03:23:53 -04:00
2f5d370dec
There are 43 instances of posix shell tests and 35 instances of bash. To give us a single consistent language for testing in, replace all #!/bin/sh to #!/bin/bash. Common sources that are included in both different shells will now work as expected. And we no longer have to fix up bashisms that appear to work when someone's system has sh symlinked to bash, but don't work on other systems that have both shells installed. Although we could have chosen sh, it's not backwards compatible so it wouldn't be possible to bulk convert without re-writing the existing bash tests. Choosing bash also gives us some nicer features including 'local' variable definitions and regexes in if statements that are already widely used in the tests. It's not expected that there are any users with only sh available due to the large number of bash tests that exist. Discussed in relation to running shellcheck here: https://lore.kernel.org/linux-perf-users/e3751a74be34bbf3781c4644f518702a7270220b.1749785642.git.collin.funk1@gmail.com/ Signed-off-by: James Clark <james.clark@linaro.org> Reviewed-by: Collin Funk <collin.funk1@gmail.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: https://lore.kernel.org/r/20250623-james-perf-bash-tests-v1-1-f572f54d4559@linaro.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
77 lines
1.6 KiB
Bash
Executable File
77 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# BPF metadata collection test.
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set -e
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err=0
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perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
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cleanup() {
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rm -f "${perfdata}"
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rm -f "${perfdata}".old
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trap - EXIT TERM INT
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}
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trap_cleanup() {
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cleanup
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exit 1
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}
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trap trap_cleanup EXIT TERM INT
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test_bpf_metadata() {
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echo "Checking BPF metadata collection"
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if ! perf check -q feature libbpf-strings ; then
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echo "Basic BPF metadata test [skipping - not supported]"
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err=0
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return
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fi
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# This is a basic invocation of perf record
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# that invokes the perf_sample_filter BPF program.
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if ! perf record -e task-clock --filter 'ip > 0' \
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-o "${perfdata}" sleep 1 2> /dev/null
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then
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echo "Basic BPF metadata test [Failed record]"
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err=1
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return
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fi
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# The BPF programs that ship with "perf" all have the following
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# variable defined at compile time:
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#
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# const char bpf_metadata_perf_version[] SEC(".rodata") = <...>;
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#
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# This invocation looks for a PERF_RECORD_BPF_METADATA event,
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# and checks that its content contains the string given by
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# "perf version".
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VERS=$(perf version | awk '{print $NF}')
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if ! perf script --show-bpf-events -i "${perfdata}" | awk '
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/PERF_RECORD_BPF_METADATA.*perf_sample_filter/ {
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header = 1;
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}
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/^ *entry/ {
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if (header) { header = 0; entry = 1; }
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}
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$0 !~ /^ *entry/ {
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entry = 0;
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}
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/perf_version/ {
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if (entry) print $NF;
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}
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' | egrep "$VERS" > /dev/null
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then
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echo "Basic BPF metadata test [Failed invalid output]"
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err=1
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return
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fi
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echo "Basic BPF metadata test [Success]"
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}
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test_bpf_metadata
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cleanup
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exit $err
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