tools/perf/tests/shell/lib/probe_vfs_getname.sh

   1 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
   2
   3 perf probe -l 2>&1 | grep -q probe:vfs_getname
   4 had_vfs_getname=$?
   5
   6 cleanup_probe_vfs_getname() {
   7         if [ $had_vfs_getname -eq 1 ] ; then
   8                 perf probe -q -d probe:vfs_getname*
   9         fi
  10 }
  11
  12 add_probe_vfs_getname() {
  13         local verbose=$1
  14         if [ $had_vfs_getname -eq 1 ] ; then
  15                 line=$(perf probe -L getname_flags 2>&1 | egrep 'result.*=.*filename;' | sed -r 's/[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*/\1/')
  16                 perf probe -q       "vfs_getname=getname_flags:${line} pathname=result->name:string" || \
  17                 perf probe $verbose "vfs_getname=getname_flags:${line} pathname=filename:ustring"
  18         fi
  19 }
  20
  21 skip_if_no_debuginfo() {
  22         add_probe_vfs_getname -v 2>&1 | egrep -q "^(Failed to find the path for kernel|Debuginfo-analysis is not supported)" && return 2
  23         return 1
  24 }