perf tests: Fix an incorrect type in append_script()

The return value from the call to readlink() is ssize_t. However, the
return value is being assigned to an size_t variable 'len', so making
'len'

perf tests: Fix an incorrect type in append_script()

The return value from the call to readlink() is ssize_t. However, the
return value is being assigned to an size_t variable 'len', so making
'len' an ssize_t.

./tools/perf/tests/tests-scripts.c:182:5-8: WARNING: Unsigned expression compared with zero: len < 0.

Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=11909
Reported-by: Abaci Robot <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Jiapeng Chong <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test: Run parallel tests in two passes

In pass 1 run all tests that succeed when run in parallel. In pass 2
sequentially run all remaining tests that are flagged as
"exclusive". Sequential and

perf test: Run parallel tests in two passes

In pass 1 run all tests that succeed when run in parallel. In pass 2
sequentially run all remaining tests that are flagged as
"exclusive". Sequential and dont_fork tests keep to run in pass 1.
Read the exclusive flag from the shell test descriptions, but remove
from display to avoid >100 characters. Add error handling to finish
tests if starting a later test fails. Mark the task-exit test as
exclusive due to issues reported-by James Clark.

Tested-by: James Clark <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Howard Chu <[email protected]>
Cc: Weilin Wang <[email protected]>
Cc: Ilya Leoshkevich <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Dapeng Mi <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Veronika Molnarova <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>

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perf tests shell: Skip base_* dirs in test script search

The test scripts in base_* directories currently have their own drivers
that run them. Before this patch, the shell test-suite generator caus

perf tests shell: Skip base_* dirs in test script search

The test scripts in base_* directories currently have their own drivers
that run them. Before this patch, the shell test-suite generator causes
them to run twice. Fix that by skipping them in the generator.

A cleaner solution (for future) will be to use the directory structure
idea (introduced by Carsten Haitzler in 7391db645938 ("perf test:
Refactor shell tests allowing subdirs")) to generate test entries with
subtests, like:

$ perf test list
[...]
97: perf probe shell tests
97:1: perf probe basic functionality
97:2: perf probe tests with arguments
97:3: perf probe invalid options handling
[...]

There is already a lot of shell test scripts and many are about to come,
so there is a need for some hierarchy.

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

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perf test: Support external tests for separate objdir

Extend the searching for the test files so that it works when running
perf from a separate objdir, and also when the perf executable is
symlinke

perf test: Support external tests for separate objdir

Extend the searching for the test files so that it works when running
perf from a separate objdir, and also when the perf executable is
symlinked.

Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Andi Kleen <[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 tests: Run time generate shell test suites

Rather than special shell test logic, do a single pass to create an
array of test suites. Hold the shell test file name in the test suite
priv field.

perf tests: Run time generate shell test suites

Rather than special shell test logic, do a single pass to create an
array of test suites. Hold the shell test file name in the test suite
priv field. This makes the special shell test logic in builtin-test.c
redundant so remove it.

Signed-off-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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perf tests: Use scandirat for shell script finding

Avoid filename appending buffers by using openat, faccessat and
scandirat more widely. Turn the script's path back to a file name
using readlink fr

perf tests: Use scandirat for shell script finding

Avoid filename appending buffers by using openat, faccessat and
scandirat more widely. Turn the script's path back to a file name
using readlink from /proc/<pid>/fd/<fd>.

Read the script's description using api/io.h to avoid fdopen
conversions. Whilst reading perform additional sanity checks on the
script's contents.

Signed-off-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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perf test: Rename builtin-test-list and add missed header guard

builtin-test-list is primarily concerned with shell script
tests. Rename the file to better reflect this and add a missed header
guard

perf test: Rename builtin-test-list and add missed header guard

builtin-test-list is primarily concerned with shell script
tests. Rename the file to better reflect this and add a missed header
guard.

Signed-off-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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