kernel/linux.git/tools/perf/tests/Build, branch v6.19.11

perf test: Add kallsyms split test

2025-12-03T05:59:15+00:00

Create a fake root directory for /proc/{version,modules,kallsyms} in /tmp for testing. The kallsyms has a bad symbol in the module and it causes the main map splitted. The test ensures it only has two maps - kernel and the module and it finds the initial map after the module without creating the split maps like [kernel].0 and so on. $ perf test -vv "split kallsyms" 69: split kallsyms: --- start --- test child forked, pid 1016196 try to create fake root directory create kernel maps from the fake root directory maps__set_modules_path_dir: cannot open /tmp/perf-test.Zrv6Sy/lib/modules/X.Y.Z dir Problems setting modules path maps, continuing anyway... Failed to open /tmp/perf-test.Zrv6Sy/proc/kcore. Note /proc/kcore requires CAP_SYS_RAWIO capability to access. Using /tmp/perf-test.Zrv6Sy/proc/kallsyms for symbols kernel map loaded - check symbol and map ---- end(0) ---- 69: split kallsyms : Ok Reviewed-by: Ian Rogers Signed-off-by: Namhyung Kim

perf test: Remove C python_use test

2025-10-01T19:59:11+00:00

Removed in favor of the shell script version. Signed-off-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Collin Funk Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Signed-off-by: Arnaldo Carvalho de Melo

perf test: Add libsubcmd help tests

2025-07-01T22:51:55+00:00

Add a set of tests for subcmd routines. Currently it fails the last one since there's a bug. It'll be fixed by the next commit. $ perf test subcmd 69: libsubcmd help tests : 69.1: Load subcmd names : Ok 69.2: Uniquify subcmd names : Ok 69.3: Exclude duplicate subcmd names : FAILED! Reviewed-by: Ian Rogers Link: https://lore.kernel.org/r/20250701201027.1171561-2-namhyung@kernel.org Signed-off-by: Namhyung Kim

perf build: Specify shellcheck should use bash

2025-06-30T16:43:06+00:00

When someone has a global shellcheckrc file, for example at ~/.config/shellcheckrc, with the directive 'shell=sh', building perf will fail with many shellcheck errors like: In tests/shell/base_probe/test_adding_kernel.sh line 294: (( TEST_RESULT += $? )) ^---------------------^ SC3006 (warning): In POSIX sh, standalone ((..)) is undefined. For more information: https://www.shellcheck.net/wiki/SC3006 -- In POSIX sh, standalone ((..)) is... make[5]: *** [tests/Build:91: tests/shell/base_probe/test_adding_kernel.sh.shellcheck_log] Error 1 Passing the '-s bash' option ensures that it runs correctly regardless of a developers global configuration. This patch adds '-s bash' and other options to the SHELLCHECK variable in Makefile.perf and makes use of the variable consistently. Signed-off-by: Collin Funk Link: https://lore.kernel.org/r/63491dbc8439edf2e949d80e264b9d22332fea61.1751082075.git.collin.funk1@gmail.com Signed-off-by: Namhyung Kim

perf test demangle-rust: Add Rust demangling test

2025-05-09T20:01:57+00:00

The test cases are listed examples in: https://doc.rust-lang.org/rustc/symbol-mangling/v0.html This test was previously part of a different Rust v0 demangler: https://lore.kernel.org/lkml/20250129193037.573431-1-irogers@google.com/ Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alex Gaynor Cc: Alexander Shishkin Cc: Alice Ryhl Cc: Andreas Hindborg Cc: Ariel Ben-Yehuda Cc: Benno Lossin Cc: Bill Wendling Cc: Björn Roy Baron Cc: Boqun Feng Cc: Daniel Xu Cc: Danilo Krummrich Cc: Gary Guo Cc: Howard Chu Cc: Ingo Molnar Cc: James Clark Cc: Jiapeng Chong Cc: Jiri Olsa Cc: Justin Stitt Cc: Kan Liang Cc: Mark Rutland Cc: Masami Hiramatsu Cc: Miguel Ojeda Cc: Namhyung Kim Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Stephen Brennan Cc: Trevor Gross Link: https://lore.kernel.org/r/20250430004128.474388-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf build: Add pylint build tests

2025-03-24T16:38:20+00:00

If PYLINT=1 is passed to the build then run pylint over python code in perf. Unlike shellcheck this isn't default on as there are currently too many errors. An example of an error: ``` ************* Module setup util/setup.py:19:0: C0301: Line too long (127/100) (line-too-long) util/setup.py:20:0: C0301: Line too long (138/100) (line-too-long) util/setup.py:63:0: C0301: Line too long (106/100) (line-too-long) util/setup.py:1:0: C0114: Missing module docstring (missing-module-docstring) util/setup.py:24:4: W0622: Redefining built-in 'vars' (redefined-builtin) util/setup.py:11:4: C0103: Constant name "cc_options" doesn't conform to UPPER_CASE naming style (invalid-name) util/setup.py:13:4: C0103: Constant name "cc_options" doesn't conform to UPPER_CASE naming style (invalid-name) util/setup.py:15:34: R1732: Consider using 'with' for resource-allocating operations (consider-using-with) util/setup.py:18:0: C0116: Missing function or method docstring (missing-function-docstring) util/setup.py:19:16: R1732: Consider using 'with' for resource-allocating operations (consider-using-with) util/setup.py:44:0: C0413: Import "from setuptools import setup, Extension" should be placed at the top of the module (wrong-import-position) util/setup.py:46:0: C0413: Import "from setuptools.command.build_ext import build_ext as _build_ext" should be placed at the top of the module (wrong-import-position) util/setup.py:47:0: C0413: Import "from setuptools.command.install_lib import install_lib as _install_lib" should be placed at the top of the module (wrong-import-position) util/setup.py:49:0: C0115: Missing class docstring (missing-class-docstring) util/setup.py:49:0: C0103: Class name "build_ext" doesn't conform to PascalCase naming style (invalid-name) util/setup.py:52:8: W0201: Attribute 'build_lib' defined outside __init__ (attribute-defined-outside-init) util/setup.py:53:8: W0201: Attribute 'build_temp' defined outside __init__ (attribute-defined-outside-init) util/setup.py:55:0: C0115: Missing class docstring (missing-class-docstring) util/setup.py:55:0: C0103: Class name "install_lib" doesn't conform to PascalCase naming style (invalid-name) util/setup.py:58:8: W0201: Attribute 'build_dir' defined outside __init__ (attribute-defined-outside-init) *----------------------------------------------------------------- Your code has been rated at 6.67/10 (previous run: 6.51/10, +0.16) make[4]: *** [util/Build:442: util/setup.py.pylint_log] Error 1 ``` Reviewed-by: James Clark Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20250311213628.569562-5-irogers@google.com Signed-off-by: Namhyung Kim

perf build: Add mypy build tests

2025-03-24T16:38:20+00:00

If MYPY=1 is passed to the build then run mypy over python code in perf. Unlike shellcheck this isn't default on as there are currently too many errors. An example of an error: ``` util/setup.py:8: error: Item "None" of "str | None" has no attribute "split" [union-attr] util/setup.py:15: error: Item "None" of "IO[bytes] | None" has no attribute "readline" [union-attr] util/setup.py:15: error: List item 0 has incompatible type "str | None"; expected "str | bytes | PathLike[str] | PathLike[bytes]" [list-item] util/setup.py:16: error: Unsupported left operand type for + ("None") [operator] util/setup.py:16: note: Left operand is of type "str | None" util/setup.py:74: error: Unsupported left operand type for + ("None") [operator] util/setup.py:74: note: Left operand is of type "str | None" Found 5 errors in 1 file (checked 1 source file) make[4]: *** [util/Build:430: util/setup.py.mypy_log] Error 1 ``` Reviewed-by: James Clark Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20250311213628.569562-4-irogers@google.com Signed-off-by: Namhyung Kim

perf build: Rename TEST_LOGS to SHELL_TEST_LOGS

2025-03-24T16:38:20+00:00

Rename TEST_LOGS to SHELL_TEST_LOGS as later changes will add more kinds of test logs. Minor comment tweak in Makefile.perf as more than just test shell tests are checked. Reviewed-by: James Clark Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20250311213628.569562-3-irogers@google.com Signed-off-by: Namhyung Kim

perf tests: Enable tests disabled due to tracepoint parsing

2024-12-09T20:52:42+00:00

Tracepoint parsing required libtraceevent but no longer does. Remove the Build logic and #ifdefs that caused the tests not to be run. Test code that directly uses libtraceevent is still guarded. Reviewed-by: Namhyung Kim Signed-off-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Andi Kleen Cc: Athira Rajeev Cc: Ben Gainey Cc: Colin Ian King Cc: Dominique Martinet Cc: Ilkka Koskinen Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Oliver Upton Cc: Paran Lee Cc: Peter Zijlstra Cc: Steinar H. Gunderson Cc: Steven Rostedt (VMware) Cc: Thomas Falcon Cc: Weilin Wang Cc: Yang Jihong Cc: Yang Li Cc: Ze Gao Cc: Zixian Cai Cc: zhaimingbing Link: https://lore.kernel.org/r/20241118225345.889810-8-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Add hwmon filename parser test

2024-11-09T16:27:44+00:00

Filename parsing maps a hwmon filename to constituent parts enum/int parts for the hwmon config value. Add a test case for the parsing. Signed-off-by: Ian Rogers Cc: Ravi Bangoria Cc: Yoshihiro Furudera Cc: Howard Chu Cc: Ze Gao Cc: Changbin Du Cc: Junhao He Cc: Weilin Wang Cc: James Clark Cc: Oliver Upton Cc: Athira Jajeev [namhyung: add #include for strlcpy()] Link: https://lore.kernel.org/r/20241109003759.473460-4-irogers@google.com Signed-off-by: Namhyung Kim