diff options
| -rwxr-xr-x | tools/perf/tests/shell/trace+probe_vfs_getname.sh | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/trace+probe_vfs_getname.sh b/tools/perf/tests/shell/trace+probe_vfs_getname.sh new file mode 100755 index 000000000000..d0fba0c5e354 --- /dev/null +++ b/tools/perf/tests/shell/trace+probe_vfs_getname.sh @@ -0,0 +1,31 @@ +# Check open filename arg using perf trace + vfs_getname + +# Uses the 'perf test shell' library to add probe:vfs_getname to the system +# then use it with 'perf trace' using 'touch' to write to a temp file, then +# checks that that was captured by the vfs_getname was used by 'perf trace', +# that already handles "probe:vfs_getname" if present, and used in the +# "open" syscall "filename" argument beautifier. + +# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017 + +. $(dirname $0)/lib/probe_vfs_getname.sh + +file=$(mktemp /tmp/temporary_file.XXXXX) + +trace_open_vfs_getname() { + perf trace -e open touch $file 2>&1 | \ + egrep " +[0-9]+\.[0-9]+ +\( +[0-9]+\.[0-9]+ ms\): +touch\/[0-9]+ open\(filename: +${file}, +flags: CREAT\|NOCTTY\|NONBLOCK\|WRONLY, +mode: +IRUGO\|IWUGO\) += +[0-9]+$" +} + + +add_probe_vfs_getname || skip_if_no_debuginfo +err=$? +if [ $err -ne 0 ] ; then + exit $err +fi + +trace_open_vfs_getname +err=$? +rm -f ${file} +cleanup_probe_vfs_getname +exit $err |