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# Arnaldo Carvalho de Melo <acme@kernel.org>, 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 -q "vfs_getname=getname_flags:${line} pathname=result->name:string" || \
perf probe $verbose "vfs_getname=getname_flags:${line} pathname=filename:ustring"
fi
}
skip_if_no_debuginfo() {
add_probe_vfs_getname -v 2>&1 | egrep -q "^(Failed to find the path for the kernel|Debuginfo-analysis is not supported)" && return 2
return 1
}