1#!/bin/sh 2# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017 3 4perf probe -l 2>&1 | grep -q probe:vfs_getname 5had_vfs_getname=$? 6 7cleanup_probe_vfs_getname() { 8 if [ $had_vfs_getname -eq 1 ] ; then 9 perf probe -q -d probe:vfs_getname* 10 fi 11} 12 13add_probe_vfs_getname() { 14 add_probe_verbose=$1 15 if [ $had_vfs_getname -eq 1 ] ; then 16 result_filename_re="[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*" 17 line=$(perf probe -L getname_flags 2>&1 | grep -E "$result_filename_re" | sed -r "s/$result_filename_re/\1/") 18 if [ -z "$line" ] ; then 19 result_aname_re="[[:space:]]+([[:digit:]]+)[[:space:]]+result->aname = NULL;" 20 line=$(perf probe -L getname_flags 2>&1 | grep -E "$result_aname_re" | sed -r "s/$result_aname_re/\1/") 21 fi 22 perf probe -q "vfs_getname=getname_flags:${line} pathname=result->name:string" || \ 23 perf probe $add_probe_verbose "vfs_getname=getname_flags:${line} pathname=filename:ustring" 24 fi 25} 26 27skip_if_no_debuginfo() { 28 add_probe_vfs_getname -v 2>&1 | grep -E -q "^(Failed to find the path for the kernel|Debuginfo-analysis is not supported)|(file has no debug information)" && return 2 29 return 1 30} 31 32# check if perf is compiled with libtraceevent support 33skip_no_probe_record_support() { 34 if [ $had_vfs_getname -eq 1 ] ; then 35 perf check feature -q libtraceevent && return 1 36 return 2 37 fi 38} 39