perf test perftool_testsuite: Return correct value for skipping

In 'perf test', a return value 2 represents that the test case was
skipped. Fix this value for perftool_testsuite test cases to
differ

perf test perftool_testsuite: Return correct value for skipping

In 'perf test', a return value 2 represents that the test case was
skipped. Fix this value for perftool_testsuite test cases to
differentiate between skip and pass values.

Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test perftool_testsuite: Add missing description

Properly name the test cases of perftool_testsuite instead of the
license being taken as the name for 'perf test'.

Signed-off-by: Veronika Moln

perf test perftool_testsuite: Add missing description

Properly name the test cases of perftool_testsuite instead of the
license being taken as the name for 'perf test'.

Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf tests base_probe: Fix check for the count of existing probes in test_adding_kernel

perftool-testsuite_probe fails in test_adding_kernel as below:

Regexp not found: "probe:inode_permission_11"

perf tests base_probe: Fix check for the count of existing probes in test_adding_kernel

perftool-testsuite_probe fails in test_adding_kernel as below:

Regexp not found: "probe:inode_permission_11"
-- [ FAIL ] -- perf_probe :: test_adding_kernel :: force-adding probes ::
second probe adding (with force) (output regexp parsing)
event syntax error: 'probe:inode_permission_11'
\___ unknown tracepoint

Error: File /sys/kernel/tracing//events/probe/inode_permission_11
not found.
Hint: Perhaps this kernel misses some CONFIG_ setting to
enable this feature?.

The test does the following:

1) Adds a probe point first using:

$CMD_PERF probe --add $TEST_PROBE

2) Then tries to add same probe again without —force and expects it to
fail. Next tries to add same probe again with —force. In this case,
perf probe succeeds and adds the probe with a suffix number. Example:

./perf probe --add inode_permission
Added new event:
probe:inode_permission (on inode_permission)

./perf probe --add inode_permission --force
Added new event:
probe:inode_permission_1 (on inode_permission)

./perf probe --add inode_permission --force
Added new event:
probe:inode_permission_2 (on inode_permission)

Each time, suffix is added to existing probe name.

To get the suffix number, test cases uses:

NO_OF_PROBES=`$CMD_PERF probe -l | wc -l`

This will work if there is no other probe existing in the system. If
there are any other probes other than kernel probes or inode_permission,
( example: any probe), "perf probe -l" will include count for other
probes too.

Example, in the system where this failed, already some probes were
default added. So count became 10

./perf probe -l | wc -l
10

So to be specific for "inode_permission", restrict the probe count check
to that probe point alone using:

NO_OF_PROBES=`$CMD_PERF probe -l $TEST_PROBE| wc -l`

Similarly while removing the probe using "probe --del *", (removing all
probes), check uses:

../common/check_all_lines_matched.pl "Removed event: probe:$TEST_PROBE"

But if there are other probes in the system, the log will contain
reference to other existing probe too. Hence change usage of
check_all_lines_matched.pl to check_all_patterns_found.pl This will make
sure expecting string comes in the result

Signed-off-by: Athira Rajeev <[email protected]>
Acked-by: Veronika Molnarova <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Hari Bathini <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf tools tests shell base_probe: Enhance print_overall_results to print summary information

Currently print_overall_results prints the number of fails in the
summary, example from base_probe tests

perf tools tests shell base_probe: Enhance print_overall_results to print summary information

Currently print_overall_results prints the number of fails in the
summary, example from base_probe tests in testsuite_probe:

## [ FAIL ] ## perf_probe :: test_invalid_options SUMMARY ::
11 failures found

test_invalid_options contains multiple tests and out of that 11 failed.
Sometimes it could happen that it is due to missing dependency in the
build or environment dependency.

Example, perf probe -L requires DWARF enabled. otherwise
it fails as below:

./perf probe -L
Error: switch `L' is not available because NO_DWARF=1

"-L" is tested as one of the option in:

for opt in '-a' '-d' '-L' '-V'; do
<<perf probe test>>
print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "missing argument
for $opt"

Here -a and -d doesn't require DWARF. Similarly there are few other
tests requiring DWARF.

To hint the user that missing DWARF could be one issue, update
print_overall_results to print a comment string along with summary
hinting the possible cause. Update test_invalid_options.sh and
test_line_semantics.sh to pass the info about DWARF requirement since
these tests failed when perf is built without DWARF.

Use the check for presence of DWARF with "perf check feature" and append
the hint message based on the result.

With the change:

## [ FAIL ] ## perf_probe :: test_invalid_options SUMMARY ::
11 failures found :: Some of the tests need DWARF to run

Reviewed-by: Kajol Jain <[email protected]>
Signed-off-by: Athira Rajeev <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Veronika Molnarova <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
[ Minor edits changing "dwarf" to "DWARF" as its an acronym ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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