Changes in ftracetest

57c6c589 - tracing/selftests: Support log output when generating KTAP output

Mon, 25 Mar 2024 16:15:50 +0000

tracing/selftests: Support log output when generating KTAP outputWhen -v is specified ftracetest will dump logs of test execution to theconsole which if -K is also specified for KTAP output will result inoutput that is not properly KTAP formatted. All that's required for KTAPformatting is that anything we log have a '#' at the start of the line sowe can improve things by washing the output through a simple read loop.This will help automated parsers when verbose mode is enabled.Signed-off-by: Mark Brown Reviewed-by: Muhammad Usama Anjum Acked-by: Steven Rostedt (Google) Acked-by: Masami Hiramatsu (Google) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

1901ae3c - selftest/ftrace: fix typo in ftracetest script

Mon, 29 Jan 2024 16:28:07 +0000

selftest/ftrace: fix typo in ftracetest scriptFix a typo in ftracetest script which is run when running the kselftestsfor ftrace.s/faii/failSigned-off-by: Kousik Sanagavarapu Acked-by: Masami Hiramatsu (Google) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

7e021da8 - selftests: tracing: Fix to unmount tracefs for recovering environment

Tue, 12 Sep 2023 01:10:39 +0000

selftests: tracing: Fix to unmount tracefs for recovering environmentFix to unmount the tracefs if the ftracetest mounted it for recoveringsystem environment. If the tracefs is already mounted, this does nothing.Suggested-by: Mark Brown Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@sirena.org.uk/Fixes: cbd965bde74c ("ftrace/selftests: Return the skip code when tracing directory not configured in kernel")Signed-off-by: Masami Hiramatsu (Google) Reviewed-by: Steven Rostedt (Google) Reviewed-by: Mark Brown Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

7dc1e125 - ftrace/selftests: Add softlink to latest log directory

Fri, 08 Sep 2023 22:17:21 +0000

ftrace/selftests: Add softlink to latest log directoryWhen I'm debugging something with the ftrace selftests and need to look atthe logs, it becomes tedious that I need to do the following: ls -ltr logs [ copy the last directory ] ls logs/to see where the logs are.Instead, do the common practice of having a "latest" softlink to the lastrun selftest. This way after running the selftest I only need to do: ls logs/latest/and it will always give me the directory of the last run selftest logs!Signed-off-by: Steven Rostedt (Google) Acked-by: Masami Hiramatsu (Google) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

8cd0d863 - selftests/ftace: Fix KTAP output ordering

Sat, 10 Jun 2023 14:27:55 +0000

selftests/ftace: Fix KTAP output orderingThe KTAP parser I used to test the KTAP output for ftracetest was overlyrobust and did not notice that the test number and pass/fail result werereversed. Fix this.Fixes: dbcf76390eb9 ("selftests/ftrace: Improve integration with kselftest runner")Signed-off-by: Mark Brown Acked-by: Masami Hiramatsu (Google) Acked-by: Steven Rostedt (Google) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

dbcf7639 - selftests/ftrace: Improve integration with kselftest runner

Mon, 08 May 2023 13:15:42 +0000

selftests/ftrace: Improve integration with kselftest runnerThe ftrace selftests do not currently produce KTAP output, they produce acustom format much nicer for human consumption. This means that when run inautomated test systems we just get a single result for the suite as a wholerather than recording results for individual test cases, making it harderto look at the test data and masking things like inappropriate skips.Address this by adding support for KTAP output to the ftracetest script andproviding a trivial wrapper which will be invoked by the kselftest runnerto generate output in this format by default, users using ftracetestdirectly will continue to get the existing output.This is not the most elegant solution but it is simple and effective. Idid consider implementing this by post processing the existing outputformat but that felt more complex and likely to result in all output beinglost if something goes seriously wrong during the run which would not behelpful. I did also consider just writing a separate runner script butthere's enough going on with things like the signal handling for that toseem like it would be duplicating too much.Acked-by: Steven Rostedt (Google) Acked-by: Masami Hiramatsu (Google) Tested-by: Masami Hiramatsu (Google) Signed-off-by: Mark Brown Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

25b95138 - selftests/ftrace: Stop tracing while reading the trace file by default

Tue, 26 Oct 2021 23:22:11 +0000

selftests/ftrace: Stop tracing while reading the trace file by defaultStop tracing while reading the trace file by default, to preventthe test results while checking it and to avoid taking a long timeto check the result.If there is any testcase which wants to test the tracing while readingthe trace file, please override this setting inside the test case.This also recovers the pause-on-trace when clean it up.Link: https://lkml.kernel.org/r/163529053143.690749.15365238954175942026.stgit@devnote2Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware) List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

1b8eec51 - selftests/ftrace: Support ":README" suffix for requires

Wed, 03 Jun 2020 02:41:09 +0000

selftests/ftrace: Support ":README" suffix for requiresAdd ":README" suffix support for the requires list, so thatthe testcase can list up the required string for README fileto the requires list.Note that the required string is treated as a fixed string,instead of regular expression. Also, the testcase can specifya string containing spaces with quotes. E.g.# requires: "place: [:]":READMESigned-off-by: Masami Hiramatsu Reviewed-by: Tom Zanussi Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

fa33e623 - selftests/ftrace: Add "requires:" list support

Wed, 03 Jun 2020 02:40:28 +0000

selftests/ftrace: Add "requires:" list supportIntroduce "requires:" list to check required ftrace interfacefor each test. This will simplify the interface checking codeand unify the error message. Another good point is, it canskip the ftrace initializing.Note that this requires list must be written as a shellcomment.Signed-off-by: Masami Hiramatsu Reviewed-by: Tom Zanussi Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

76ebbc27 - selftests/ftrace: Allow ":" in description

Wed, 03 Jun 2020 02:40:10 +0000

selftests/ftrace: Allow ":" in descriptionAllow ":" in the description line. Currently if there is ":"in the test description line, the description is cut at thatpoint, but that was unintended.Signed-off-by: Masami Hiramatsu Reviewed-by: Tom Zanussi Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

6734d211 - selftests/ftrace: Make XFAIL green color

Fri, 01 May 2020 13:37:41 +0000

selftests/ftrace: Make XFAIL green colorSince XFAIL (Expected Failure) is expected to fail the test, whichmeans that test case works as we expected. IOW, XFAIL is same asPASS. So make it green.Signed-off-by: Masami Hiramatsu Acked-by: Steven Rostedt (VMware) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

b730d668 - ftrace/selftest: make unresolved cases cause failure if --fail-unresolved set

Wed, 19 Feb 2020 09:33:30 +0000

ftrace/selftest: make unresolved cases cause failure if --fail-unresolved setCurrently, ftracetest will return 1 (failure) if any unresolved casesare encountered. The unresolved status results from modules andprograms not being available, and as such does not indicate anyissues with ftrace itself. As such, change the behaviour offtracetest in line with unsupported cases; if unsupported caseshappen, ftracetest still returns 0 unless --fail-unsupported. Here--fail-unresolved is added and the default is to return 0 ifunresolved results occur.Signed-off-by: Alan Maguire Acked-by: Masami Hiramatsu Acked-by: Steven Rostedt (VMware) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

57c4cfd4 - ftrace/selftests: workaround cgroup RT scheduling issues

Wed, 19 Feb 2020 09:33:29 +0000

ftrace/selftests: workaround cgroup RT scheduling issueswakeup_rt.tc and wakeup.tc tests in tracers/ subdirectoryfail due to the chrt command returning: chrt: failed to set pid 0's policy: Operation not permitted.To work around this, temporarily disable grout RT schedulingduring ftracetest execution. Restore original value ontest run completion. With these changes in place, bothtests consistently pass.Fixes: c575dea2c1a5 ("selftests/ftrace: Add wakeup_rt tracer testcase")Fixes: c1edd060b413 ("selftests/ftrace: Add wakeup tracer testcase")Signed-off-by: Alan Maguire Acked-by: Steven Rostedt (VMware) Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

cbd965bd - ftrace/selftests: Return the skip code when tracing directory not configured in kernel

Wed, 03 Jul 2019 18:40:42 +0000

ftrace/selftests: Return the skip code when tracing directory not configured in kernelIf the kernel is not configured with ftrace enabled, the ftracetestselftests should return the error code of "4" as that is the kselftests"skip" code, and not "1" which means an error.To determine if ftrace is enabled, first the newer "tracefs" is searched forin /proc/mounts. If it is not found, then "debugfs" is searched for (as oldkernels do not have tracefs). If that is not found, an attempt to mount thetracefs or debugfs is performed. This is done by seeing first if the/sys/kernel/tracing directory exists. If it does than tracefs is configuredin the kernel and an attempt to mount it is performed.If /sys/kernel/tracing does not exist, then /sys/kernel/debug is tested tosee if that directory exists. If it does, then an attempt to mount debugfson that directory is performed. If it does not exist, then debugfs is notconfigured in the running kernel and the test exits with the skip code.If either mount fails, then a normal error is returned as they do exist inthe kernel but something went wrong to mount them.This changes the test to always try the tracefs file system first as it hasbeen in the kernel for some time now and it is better to test it if it isavailable instead of always testing debugfs.Link: http://lkml.kernel.org/r/20190702062358.7330-1-po-hsu.lin@canonical.comReported-by: Po-Hsu Lin Acked-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware) List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

63307d01 - treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 472

Tue, 04 Jun 2019 08:11:05 +0000

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 472Based on 1 normalized pattern(s): released under the terms of the gpl v2extracted by the scancode license scanner the SPDX license identifier GPL-2.0-onlyhas been chosen to replace the boilerplate/reference in 5 file(s).Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.orgLink: https://lkml.kernel.org/r/20190604081203.398003637@linutronix.deSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

4a075bd4 - selftests/ftrace: Add checkbashisms meta-testcase

Fri, 22 Feb 2019 01:27:25 +0000

selftests/ftrace: Add checkbashisms meta-testcaseAdd a meta-testcase which tests ftracetest itself withcheckbasisms. This helps us to keep our test scriptbashisms clean.Signed-off-by: Masami Hiramatsu Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

0e27ded1 - selftests/ftrace: Handle the absence of tput

Mon, 25 Feb 2019 13:14:50 +0000

selftests/ftrace: Handle the absence of tputIn environments where tput is not available, we get the followingerror$ ./ftracetest: 163: [: Illegal number:because ncolors is an empty string. Fix that by setting it to 0 if thetput command fails.Acked-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu Signed-off-by: Juerg Haefliger Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

4ce55a9c - selftests/ftrace: Replace \e with \033

Fri, 22 Feb 2019 20:53:51 +0000

selftests/ftrace: Replace \e with \033The \e sequence character is not POSIX. Fix that by using \033 instead.Acked-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu Signed-off-by: Juerg Haefliger Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

37fb665b - selftests/ftrace: Replace echo -e with printf

Fri, 22 Feb 2019 20:53:50 +0000

selftests/ftrace: Replace echo -e with printfecho -e is not POSIX. Depending on what /bin/sh is, we can getincorrect output like:$ -e -n [1] Basic trace file check$ -e [PASS]Fix that by using printf instead.Acked-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu Signed-off-by: Juerg Haefliger Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest

f73581f8 - selftests/ftrace: Strip escape sequences for log file

Wed, 17 Oct 2018 03:33:23 +0000

selftests/ftrace: Strip escape sequences for log fileStrip escape sequences from the stream to the ftracetestsummary log file. Note that all test-case results aredumped raw in each file.Signed-off-by: Masami Hiramatsu Acked-by: Steven Rostedt (VMware) Signed-off-by: Shuah Khan (Samsung OSG) List of files: /linux-6.15/tools/testing/selftests/ftrace/ftracetest