# Arnaldo Carvalho de Melo , 2017 perf probe -l 2>&1 | grep -q probe:vfs_getname had_vfs_getname=$? cleanup_probe_vfs_getname() { if [ $had_vfs_getname -eq 1 ] ; then perf probe -q -d probe:vfs_getname* fi } add_probe_vfs_getname() { local verbose=$1 if [ $had_vfs_getname -eq 1 ] ; then line=$(perf probe -L getname_flags 2>&1 | egrep 'result.*=.*filename;' | sed -r 's/[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*/\1/') perf probe $verbose "vfs_getname=getname_flags:${line} pathname=result->name:string" fi } skip_if_no_debuginfo() { add_probe_vfs_getname -v 2>&1 | egrep -q "^(Failed to find the path for kernel|Debuginfo-analysis is not supported)" && return 2 return 1 }