probe_vfs_getname.sh 719 B

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