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From: Masami Hiramatsu <mhiramat@kernel.org>
To: Shuah Khan <shuah@kernel.org>, Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 15/32] selftests/ftrace: Test kprobe-event argument with various bitsize
Date: Fri, 17 Aug 2018 01:36:16 +0900	[thread overview]
Message-ID: <153443737629.23257.14037873975281427056.stgit@devbox> (raw)
In-Reply-To: <153443695002.23257.13628220023468200991.stgit@devbox>

Improve the kprobe-event with argument types testcase
to test it with various bitsize.
kprobe-event argument can be recorded in given types with
various bitsize (8, 16, 32, 64), thus the type testcase
should test the different bitsize too.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 .../ftrace/test.d/kprobe/kprobe_args_type.tc       |   48 +++++++++++++-------
 1 file changed, 32 insertions(+), 16 deletions(-)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
index 37443dd23d15..1bcb67dcae26 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
@@ -6,29 +6,45 @@
 
 grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue
 
-echo 'p:testprobe _do_fork $stack0:s32 $stack0:u32 $stack0:x32 $stack0:b8@4/32' > kprobe_events
-grep testprobe kprobe_events
-test -d events/kprobes/testprobe
-
-echo 1 > events/kprobes/testprobe/enable
-( echo "forked")
-echo 0 > events/kprobes/testprobe/enable
-ARGS=`tail -n 1 trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+gen_event() { # Bitsize
+  echo "p:testprobe _do_fork \$stack0:s$1 \$stack0:u$1 \$stack0:x$1 \$stack0:b4@4/$1"
+}
 
-check_types() {
-  X1=`printf "%x" $1 | tail -c 8`
+check_types() { # s-type u-type x-type bf-type width
+  test $# -eq 5
+  CW=$5
+  CW=$((CW / 4))
+  X1=`printf "%x" $1 | tail -c ${CW}`
   X2=`printf "%x" $2`
   X3=`printf "%x" $3`
   test $X1 = $X2
   test $X2 = $X3
   test 0x$X3 = $3
 
-  B4=`printf "%02x" $4`
-  B3=`echo -n $X3 | tail -c 3 | head -c 2`
+  B4=`printf "%1x" $4`
+  B3=`printf "%03x" 0x$X3 | tail -c 2 | head -c 1`
   test $B3 = $B4
 }
-check_types $ARGS
 
-echo "-:testprobe" >> kprobe_events
-clear_trace
-test -d events/kprobes/testprobe && exit_fail || exit_pass
+for width in 64 32 16 8; do
+  : "Add new event with basic types"
+  gen_event $width > kprobe_events
+  grep testprobe kprobe_events
+  test -d events/kprobes/testprobe
+
+  : "Trace the event"
+  echo 1 > events/kprobes/testprobe/enable
+  ( echo "forked")
+  echo 0 > events/kprobes/testprobe/enable
+
+  : "Confirm the arguments is recorded in given types correctly"
+  ARGS=`grep "testprobe" trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+  check_types $ARGS $width
+
+  : "Clear event for next loop"
+  echo "-:testprobe" >> kprobe_events
+  clear_trace
+
+done
+
+exit_pass


  parent reply	other threads:[~2018-08-16 16:36 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-16 16:29 [PATCH v2 00/32] selftests/ftrace: Improve ftracetest with coverage check Masami Hiramatsu
2018-08-16 16:29 ` [PATCH v2 01/32] tracing: Allow gcov profiling on only ftrace subsystem Masami Hiramatsu
2018-08-20 15:32   ` Steven Rostedt
2018-08-20 15:33     ` Steven Rostedt
2018-08-21  6:53       ` Masami Hiramatsu
2018-08-21  7:27       ` [PATCH v2.1] " Masami Hiramatsu
2018-08-21 13:12         ` Steven Rostedt
2018-08-16 16:30 ` [PATCH v2 02/32] selftests/ftrace: Add --stop-fail hidden option for debug Masami Hiramatsu
2018-08-24 20:38   ` Steven Rostedt
2018-08-16 16:30 ` [PATCH v2 03/32] selftests/ftrace: Add --console hidden option Masami Hiramatsu
2018-08-24 20:37   ` Steven Rostedt
2018-08-25  1:35     ` Masami Hiramatsu
2018-08-25  1:42       ` Steven Rostedt
2018-08-26  7:28         ` Masami Hiramatsu
2018-08-16 16:31 ` [PATCH v2 04/32] selftests/ftrace: Add case number prefix to logfile Masami Hiramatsu
2018-08-24 21:47   ` Steven Rostedt
2018-08-16 16:31 ` [PATCH v2 05/32] selftests/ftrace: More initialize features in initialize_ftrace Masami Hiramatsu
2018-08-24 21:24   ` Steven Rostedt
2018-08-24 21:46   ` Steven Rostedt
2018-08-24 21:46     ` Steven Rostedt
2018-08-16 16:32 ` [PATCH v2 06/32] selftests/ftrace: Add SPDX License Identifier to template Masami Hiramatsu
2018-08-16 16:32 ` [PATCH v2 07/32] selftests/ftrace: Cleanup ftrace after running test Masami Hiramatsu
2018-08-16 16:32 ` [PATCH v2 08/32] selftests/ftrace: Remove unneeded per-test init/cleanup ftrace Masami Hiramatsu
2018-08-16 16:33 ` [PATCH v2 09/32] selftests/ftrace: Fix to test kprobe $comm arg only if available Masami Hiramatsu
2018-08-16 16:33 ` [PATCH v2 10/32] selftests/ftrace: Fix checkbashisms errors Masami Hiramatsu
2018-08-24 21:50   ` Steven Rostedt
2018-08-16 16:34 ` [PATCH v2 11/32] selftests/ftrace: Use loopback address instead of localhost Masami Hiramatsu
2018-08-24 21:52   ` Steven Rostedt
2018-08-25  1:47     ` Masami Hiramatsu
2018-08-16 16:34 ` [PATCH v2 12/32] selftests/ftrace: Improve kprobe on module testcase to load/unload module Masami Hiramatsu
2018-08-24 23:07   ` Steven Rostedt
2018-08-16 16:35 ` [PATCH v2 13/32] selftests/ftrace: Improve kprobe testcase to check log data Masami Hiramatsu
2018-08-16 16:35 ` [PATCH v2 14/32] selftests/ftrace: Improve kretprobe " Masami Hiramatsu
2018-08-16 16:36 ` Masami Hiramatsu [this message]
2018-08-16 16:36 ` [PATCH v2 16/32] selftests/ftrace: Check set_event_pid result Masami Hiramatsu
2018-08-16 16:37 ` [PATCH v2 17/32] selftests/ftrace: Add kprobe event with $comm argument testcase Masami Hiramatsu
2018-08-16 16:37 ` [PATCH v2 18/32] selftests/ftrace: Add kprobe profile testcase Masami Hiramatsu
2018-08-16 16:38 ` [PATCH v2 19/32] selftests/ftrace: Add a testcase for nop tracer Masami Hiramatsu
2018-08-24 22:53   ` Steven Rostedt
2018-08-26  7:30     ` Masami Hiramatsu
2018-08-16 16:38 ` [PATCH v2 20/32] selftests/ftrace: Add kprobe-event with symbol argument test Masami Hiramatsu
2018-08-16 16:39 ` [PATCH v2 21/32] selftests/ftrace: Add trace_printk sample module test Masami Hiramatsu
2018-08-24 23:06   ` Steven Rostedt
2018-08-26  8:43     ` Masami Hiramatsu
2018-08-16 16:39 ` [PATCH v2 22/32] selftests/ftrace: Add ringbuffer size changing testcase Masami Hiramatsu
2018-08-24 23:18   ` Steven Rostedt
2018-08-30  7:12     ` Masami Hiramatsu
2018-08-30 15:50       ` Steven Rostedt
2018-08-30 23:35         ` Masami Hiramatsu
2018-08-30 23:40           ` Steven Rostedt
2018-08-16 16:40 ` [PATCH v2 23/32] selftests/ftrace: Add function profiling stat testcase Masami Hiramatsu
2018-08-24 23:20   ` Steven Rostedt
2018-08-26 11:20     ` Masami Hiramatsu
2018-08-16 16:40 ` [PATCH v2 24/32] selftests/ftrace: Add max stack tracer testcase Masami Hiramatsu
2018-08-24 23:23   ` Steven Rostedt
2018-08-25  1:45     ` Masami Hiramatsu
2018-08-25  2:41       ` Steven Rostedt
2018-08-26  8:42         ` Masami Hiramatsu
2018-08-16 16:40 ` [PATCH v2 25/32] selftests/ftrace: Add function filter on module testcase Masami Hiramatsu
2018-08-24 23:25   ` Steven Rostedt
2018-08-16 16:41 ` [PATCH v2 26/32] selftests/ftrace: Add trace_pipe testcase Masami Hiramatsu
2018-08-24 23:26   ` Steven Rostedt
2018-08-26 11:20     ` Masami Hiramatsu
2018-08-16 16:41 ` [PATCH v2 27/32] selftests/ftrace: Add stacktrace ftrace filter command testcase Masami Hiramatsu
2018-08-24 23:28   ` Steven Rostedt
2018-08-16 16:42 ` [PATCH v2 28/32] selftests/ftrace: Add wakeup tracer testcase Masami Hiramatsu
2018-08-16 16:42 ` [PATCH v2 29/32] selftests/ftrace: Add wakeup_rt " Masami Hiramatsu
2018-08-25  2:09   ` Steven Rostedt
2018-08-26 11:22     ` Masami Hiramatsu
2018-08-16 16:43 ` [PATCH v2 30/32] selftests/ftrace: Add ftrace cpumask testcase Masami Hiramatsu
2018-08-25  2:18   ` Steven Rostedt
2018-08-27 12:16     ` Masami Hiramatsu
2018-08-16 16:43 ` [PATCH v2 31/32] selftests/ftrace: Add output format testcase Masami Hiramatsu
2018-08-25  2:19   ` Steven Rostedt
2018-08-30  7:48     ` Masami Hiramatsu
2018-08-16 16:44 ` [PATCH v2 32/32] selftests/ftrace: Add blktrace testcase Masami Hiramatsu
2018-08-25  2:22   ` Steven Rostedt
2018-08-30  7:53     ` Masami Hiramatsu

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