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perf test shell: Check if 'perf probe' is available, skip tests if not

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Add a library function that checks if 'perf probe' is built into the
tool being tested, skipping tests that need it.

Testing it on a system after removing the library needed to build
'probe' as a perf subcommand:

  # perf test ping vfs_getname
  59: Use vfs_getname probe to get syscall args filenames   : Skip
  60: probe libc's inet_pton & backtrace it with ping       : Skip
  61: Check open filename arg using perf trace + vfs_getname: Skip
  62: Add vfs_getname probe to get syscall args filenames   : Skip
  # perf probe
  perf: 'probe' is not a perf-command. See 'perf --help'.
  #

Now reinstalling elfutils-libelf-devel on this Fedora 26 system to
rebuild perf and then retest this:

  # perf test ping vfs_getname
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  #

Reported-by: Kim Phillips <kim.phillips@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-ctdck2gzsskqhjzu3ebb62zm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-08-14 14:26:09 -03:00
parent 0678696302
commit 1ad5a18269
6 changed files with 22 additions and 1 deletions
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6
tools/perf/tests/shell/lib/probe.sh Normal file
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@ -0,0 +1,6 @@
# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
skip_if_no_perf_probe() {
perf probe |& grep -q 'is not a perf-command' && return 2
return 0
}

2
tools/perf/tests/shell/lib/probe_vfs_getname.sh
View File

@ -1,6 +1,6 @@
# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
perf probe -l | grep -q probe:vfs_getname
perf probe -l |& grep -q probe:vfs_getname
had_vfs_getname=$?
cleanup_probe_vfs_getname() {

4
tools/perf/tests/shell/probe_vfs_getname.sh
View File

@ -2,6 +2,10 @@
#
# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
. $(dirname $0)/lib/probe.sh
skip_if_no_perf_probe || exit 2
. $(dirname $0)/lib/probe_vfs_getname.sh
add_probe_vfs_getname || skip_if_no_debuginfo

4
tools/perf/tests/shell/record+script_probe_vfs_getname.sh
View File

@ -7,6 +7,10 @@
# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
. $(dirname $0)/lib/probe.sh
skip_if_no_perf_probe || exit 2
. $(dirname $0)/lib/probe_vfs_getname.sh
perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)

3
tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
View File

@ -8,6 +8,8 @@
# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
. $(dirname $0)/lib/probe.sh
trace_libc_inet_pton_backtrace() {
idx=0
expected[0]="PING.*bytes"
@ -32,6 +34,7 @@ trace_libc_inet_pton_backtrace() {
done
}
skip_if_no_perf_probe && \
perf probe -q /lib64/libc-*.so inet_pton && \
trace_libc_inet_pton_backtrace
err=$?

4
tools/perf/tests/shell/trace+probe_vfs_getname.sh
View File

@ -8,6 +8,10 @@
# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
. $(dirname $0)/lib/probe.sh
skip_if_no_perf_probe || exit 2
. $(dirname $0)/lib/probe_vfs_getname.sh
file=$(mktemp /tmp/temporary_file.XXXXX)