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83420d5f58
Thomas reported the vfs_getname perf tests failing on s/390, it seems it was just to some extraneous '=' somehow getting into the regexp, remove it, now: root@x1:~# perf test getname 91: Add vfs_getname probe to get syscall args filenames : Ok 93: Use vfs_getname probe to get syscall args filenames : FAILED! 126: Check open filename arg using perf trace + vfs_getname : Ok root@x1:~# Second one remains a mistery, have to take some time to nail it down. Reported-by: Thomas Richter <tmricht@linux.ibm.com> Tested-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Vasily Gorbik <gor@linux.ibm.com>, Link: https://lore.kernel.org/lkml/1d7f3b7b-9edc-4d90-955c-9345428563f1@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
39 lines
1.3 KiB
Bash
39 lines
1.3 KiB
Bash
#!/bin/sh
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# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
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perf probe -l 2>&1 | grep -q probe:vfs_getname
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had_vfs_getname=$?
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cleanup_probe_vfs_getname() {
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if [ $had_vfs_getname -eq 1 ] ; then
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perf probe -q -d probe:vfs_getname*
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fi
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}
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add_probe_vfs_getname() {
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add_probe_verbose=$1
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if [ $had_vfs_getname -eq 1 ] ; then
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result_filename_re="[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*"
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line=$(perf probe -L getname_flags 2>&1 | grep -E "$result_filename_re" | sed -r "s/$result_filename_re/\1/")
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if [ -z "$line" ] ; then
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result_aname_re="[[:space:]]+([[:digit:]]+)[[:space:]]+result->aname = NULL;"
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line=$(perf probe -L getname_flags 2>&1 | grep -E "$result_aname_re" | sed -r "s/$result_aname_re/\1/")
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fi
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perf probe -q "vfs_getname=getname_flags:${line} pathname=result->name:string" || \
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perf probe $add_probe_verbose "vfs_getname=getname_flags:${line} pathname=filename:ustring"
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fi
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}
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skip_if_no_debuginfo() {
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add_probe_vfs_getname -v 2>&1 | grep -E -q "^(Failed to find the path for the kernel|Debuginfo-analysis is not supported)|(file has no debug information)" && return 2
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return 1
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}
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# check if perf is compiled with libtraceevent support
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skip_no_probe_record_support() {
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if [ $had_vfs_getname -eq 1 ] ; then
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perf check feature -q libtraceevent && return 1
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return 2
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fi
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}
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