linux-kselftest.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Masami Hiramatsu <mhiramat@kernel.org>
To: Shuah Khan <shuah@kernel.org>, Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [BUGFIX PATCH v3 2/4] selftests/ftrace: Fix ftrace test cases to check unsupported
Date: Mon, 25 Nov 2019 15:57:09 +0900	[thread overview]
Message-ID: <157466502948.21973.11090994193254792649.stgit@devnote2> (raw)
In-Reply-To: <157466501169.21973.31401747181477687.stgit@devnote2>

Since dynamic function tracer can be disabled, set_ftrace_filter
can be disappeared. Test cases which depends on it, must check
whether the set_ftrace_filter exists or not before testing
and if not, return as unsupported.

Also, if the function tracer itself is disabled, we can not
set "function" to current_tracer. Test cases must check it
before testing, and return as unsupported.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 .../ftrace/test.d/ftrace/func-filter-stacktrace.tc |    2 ++
 .../selftests/ftrace/test.d/ftrace/func_cpumask.tc |    5 +++++
 2 files changed, 7 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
index 36fb59f886ea..1a52f2883fe0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
@@ -3,6 +3,8 @@
 # description: ftrace - stacktrace filter command
 # flags: instance
 
+[ ! -f set_ftrace_filter ] && exit_unsupported
+
 echo _do_fork:stacktrace >> set_ftrace_filter
 
 grep -q "_do_fork:stacktrace:unlimited" set_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
index 86a1f07ef2ca..7757b549f0b6 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
@@ -15,6 +15,11 @@ if [ $NP -eq 1 ] ;then
   exit_unresolved
 fi
 
+if ! grep -q function available_tracers ; then
+  echo "Function trace is not enabled"
+  exit_unsupported
+fi
+
 ORIG_CPUMASK=`cat tracing_cpumask`
 
 do_reset() {


  parent reply	other threads:[~2019-11-25  6:57 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-25  6:56 [BUGFIX PATCH v3 0/4] selftests/ftrace: Fix ftracetest testcases for non-function tracer case Masami Hiramatsu
2019-11-25  6:57 ` [BUGFIX PATCH v3 1/4] selftests/ftrace: Fix to check the existence of set_ftrace_filter Masami Hiramatsu
2019-11-25 14:44   ` Steven Rostedt
2019-11-26  0:13     ` Masami Hiramatsu
2019-11-26  1:54       ` Steven Rostedt
2019-11-26  7:31         ` Masami Hiramatsu
2019-11-25  6:57 ` Masami Hiramatsu [this message]
2019-11-25 14:45   ` [BUGFIX PATCH v3 2/4] selftests/ftrace: Fix ftrace test cases to check unsupported Steven Rostedt
2019-11-25  6:57 ` [BUGFIX PATCH v3 3/4] selftests/ftrace: Do not to use absolute debugfs path Masami Hiramatsu
2019-11-25  6:57 ` [BUGFIX PATCH v3 4/4] selftests/ftrace: Fix multiple kprobe testcase Masami Hiramatsu
2019-11-25 14:49   ` Steven Rostedt

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=157466502948.21973.11090994193254792649.stgit@devnote2 \
    --to=mhiramat@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=rostedt@goodmis.org \
    --cc=shuah@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).