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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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38672c5033
perf trace requires root because it needs to use tracepoints and BPF. Skip those test when it's not run as root. Before: $ perf test trace 15: Parse sched tracepoints fields : Skip (permissions) 80: perf ftrace tests : Skip 105: perf trace enum augmentation tests : FAILED! 106: perf trace BTF general tests : FAILED! 107: perf trace exit race : FAILED! 118: probe libc's inet_pton & backtrace it with ping : Skip 125: Check Arm CoreSight trace data recording and synthesized samples: Skip 127: Check Arm SPE trace data recording and synthesized samples : Skip 132: Check open filename arg using perf trace + vfs_getname : FAILED! After: $ perf test trace 15: Parse sched tracepoints fields : Skip (permissions) 80: perf ftrace tests : Skip 105: perf trace enum augmentation tests : Skip 106: perf trace BTF general tests : Skip 107: perf trace exit race : Skip 118: probe libc's inet_pton & backtrace it with ping : Skip 125: Check Arm CoreSight trace data recording and synthesized samples: Skip 127: Check Arm SPE trace data recording and synthesized samples : Skip 132: Check open filename arg using perf trace + vfs_getname : Skip Tested-by: Thomas Falcon <thomas.falcon@intel.com> Cc: Howard Chu <howardchu95@gmail.com> Link: https://lore.kernel.org/r/20250304022837.1877845-4-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
96 lines
2.1 KiB
Bash
Executable File
96 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# perf trace BTF general tests
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# SPDX-License-Identifier: GPL-2.0
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err=0
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set -e
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# shellcheck source=lib/probe.sh
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. "$(dirname $0)"/lib/probe.sh
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file1=$(mktemp /tmp/file1_XXXX)
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file2=$(echo $file1 | sed 's/file1/file2/g')
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buffer="buffer content"
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perf_config_tmp=$(mktemp /tmp/.perfconfig_XXXXX)
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trap cleanup EXIT TERM INT HUP
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check_vmlinux() {
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echo "Checking if vmlinux BTF exists"
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if [ ! -f /sys/kernel/btf/vmlinux ]
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then
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echo "Skipped due to missing vmlinux BTF"
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return 2
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fi
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return 0
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}
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trace_test_string() {
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echo "Testing perf trace's string augmentation"
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if ! perf trace -e renameat* --max-events=1 -- mv ${file1} ${file2} 2>&1 | \
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grep -q -E "^mv/[0-9]+ renameat(2)?\(.*, \"${file1}\", .*, \"${file2}\", .*\) += +[0-9]+$"
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then
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echo "String augmentation test failed"
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err=1
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fi
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}
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trace_test_buffer() {
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echo "Testing perf trace's buffer augmentation"
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# echo will insert a newline (\10) at the end of the buffer
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if ! perf trace -e write --max-events=1 -- echo "${buffer}" 2>&1 | \
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grep -q -E "^echo/[0-9]+ write\([0-9]+, ${buffer}.*, [0-9]+\) += +[0-9]+$"
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then
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echo "Buffer augmentation test failed"
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err=1
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fi
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}
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trace_test_struct_btf() {
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echo "Testing perf trace's struct augmentation"
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if ! perf trace -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1 | \
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grep -q -E "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,\}, 0x[0-9a-f]+\) += +[0-9]+$"
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then
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echo "BTF struct augmentation test failed"
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err=1
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fi
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}
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cleanup() {
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rm -rf ${file1} ${file2} ${perf_config_tmp}
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}
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trap_cleanup() {
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echo "Unexpected signal in ${FUNCNAME[1]}"
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cleanup
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exit 1
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}
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# don't overwrite user's perf config
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trace_config() {
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export PERF_CONFIG=${perf_config_tmp}
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perf config trace.show_arg_names=false trace.show_duration=false \
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trace.show_timestamp=false trace.args_alignment=0
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}
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skip_if_no_perf_trace || exit 2
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check_vmlinux || exit 2
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[ "$(id -u)" = 0 ] || exit 2
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trace_config
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trace_test_string
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if [ $err = 0 ]; then
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trace_test_buffer
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fi
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if [ $err = 0 ]; then
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trace_test_struct_btf
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fi
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cleanup
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exit $err
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