mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-30 13:52:50 +01:00
Ian Rogers
4bd5bd8dbd
Modify test behavior to skip if BPF calls fail with "Operation not
permitted".
Fixes: d66763fed3 ("perf test trace_btf_enum: Add regression test for the BTF augmentation of enums in 'perf trace'")
Reviewed-by: James Clark <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Blake Jones <[email protected]>
Cc: Chun-Tse Shao <[email protected]>
Cc: Collin Funk <[email protected]>
Cc: Howard Chu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jan Polensky <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Li Huafei <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Nam Cao <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
80 lines
1.8 KiB
Bash
Executable File
80 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# perf trace enum augmentation tests
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# SPDX-License-Identifier: GPL-2.0
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err=0
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syscall="landlock_add_rule"
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non_syscall="timer:hrtimer_start"
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TESTPROG="perf test -w landlock"
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# shellcheck source=lib/probe.sh
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. "$(dirname $0)"/lib/probe.sh
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skip_if_no_perf_trace || exit 2
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[ "$(id -u)" = 0 ] || exit 2
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check_vmlinux() {
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echo "Checking if vmlinux exists"
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if [ ! -f /sys/kernel/btf/vmlinux ]
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then
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echo "trace+enum test [Skipped missing vmlinux BTF support]"
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err=2
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fi
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}
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check_permissions() {
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if perf trace -e $syscall $TESTPROG 2>&1 | grep -q "Operation not permitted"
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then
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echo "trace+enum test [Skipped permissions]"
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err=2
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fi
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}
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trace_landlock() {
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echo "Tracing syscall ${syscall}"
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# test flight just to see if landlock_add_rule is available
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if ! perf trace $TESTPROG 2>&1 | grep -q landlock
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then
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echo "No landlock system call found, skipping to non-syscall tracing."
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return
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fi
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output="$(perf trace -e $syscall $TESTPROG 2>&1)"
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if echo "$output" | grep -q -E ".*landlock_add_rule\(ruleset_fd: 11, rule_type: (LANDLOCK_RULE_PATH_BENEATH|LANDLOCK_RULE_NET_PORT), rule_attr: 0x[a-f0-9]+, flags: 45\) = -1.*"
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then
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err=0
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else
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printf "[syscall failure] Failed to trace syscall $syscall, output:\n$output\n"
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err=1
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fi
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}
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trace_non_syscall() {
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echo "Tracing non-syscall tracepoint ${non_syscall}"
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output="$(perf trace -e $non_syscall --max-events=1 2>&1)"
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if echo "$output" | grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$'
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then
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err=0
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else
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printf "[tracepoint failure] Failed to trace tracepoint $non_syscall, output:\n$output\n"
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err=1
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fi
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}
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check_vmlinux
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if [ $err = 0 ]; then
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check_permissions
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fi
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if [ $err = 0 ]; then
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trace_landlock
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fi
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if [ $err = 0 ]; then
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trace_non_syscall
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fi
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exit $err
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