[PATCH 5/7] selftests/ftrace: Convert check_filter_file() with requires list

Masami Hiramatsu
2020-06-01T14:42:59Z

Since check_filter_file() is basically checking the filter
tracefs file, we can convert it into requires list.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
.../ftrace/test.d/ftrace/fgraph-filter-stack.tc | 4 +---
.../ftrace/test.d/ftrace/fgraph-filter.tc | 3 +--
.../ftrace/test.d/ftrace/func-filter-glob.tc | 3 +--
.../test.d/ftrace/func-filter-notrace-pid.tc | 4 +---
.../ftrace/test.d/ftrace/func-filter-pid.tc | 4 +---
.../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 3 +--
.../ftrace/test.d/ftrace/func_event_triggers.tc | 7 +++----
.../ftrace/test.d/ftrace/func_mod_trace.tc | 3 +--
.../ftrace/test.d/ftrace/func_profiler.tc | 4 +---
.../ftrace/test.d/ftrace/func_set_ftrace_file.tc | 6 +++---
.../ftrace/test.d/ftrace/func_stack_tracer.tc | 4 +---
.../test.d/ftrace/func_traceonoff_triggers.tc | 6 +++---
tools/testing/selftests/ftrace/test.d/functions | 7 -------
.../ftrace/test.d/kprobe/kprobe_ftrace.tc | 4 +---
14 files changed, 19 insertions(+), 43 deletions(-)

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
index 8dd22561d5b0..62af263fa75e 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
@@ -1,7 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function graph filters with stack tracer
-# requires: stack_trace
+# requires: stack_trace set_ftrace_filter

# Make sure that function graph filtering works, and is not
# affected by other tracers enabled (like stack tracer)
@@ -11,8 +11,6 @@ if ! grep -q function_graph available_tracers; then
exit_unsupported
fi

-check_filter_file set_ftrace_filter
-
do_reset() {
if [ -e /proc/sys/kernel/stack_tracer_enabled ]; then
echo 0 > /proc/sys/kernel/stack_tracer_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
index d610f47edd90..56a86a2fc8ba 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
@@ -1,6 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function graph filters
+# requires: set_ftrace_filter

# Make sure that function graph filtering works

@@ -9,8 +10,6 @@ if ! grep -q function_graph available_tracers; then
exit_unsupported
fi

-check_filter_file set_ftrace_filter
-
fail() { # msg
echo $1
exit_fail
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
index 28936f434ee5..ac3e4d35f181 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
@@ -1,6 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function glob filters
+# requires: set_ftrace_filter

# Make sure that function glob matching filter works.

@@ -9,8 +10,6 @@ if ! grep -q function available_tracers; then
exit_unsupported
fi

-check_filter_file set_ftrace_filter
-
disable_tracing
clear_trace

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
index 799cd1b9c42c..b7e18d30104a 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
@@ -1,7 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function pid notrace filters
-# requires: set_ftrace_notrace_pid
+# requires: set_ftrace_notrace_pid set_ftrace_filter
# flags: instance

# Make sure that function pid matching filter with notrace works.
@@ -11,8 +11,6 @@ if ! grep -q function available_tracers; then
exit_unsupported
fi

-check_filter_file set_ftrace_filter
-
do_function_fork=1

if [ ! -f options/function-fork ]; then
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
index 9497031913bb..53ec48a92f39 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
@@ -1,7 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function pid filters
-# requires: set_ftrace_pid
+# requires: set_ftrace_pid set_ftrace_filter
# flags: instance

# Make sure that function pid matching filter works.
@@ -12,8 +12,6 @@ if ! grep -q function available_tracers; then
exit_unsupported
fi

-check_filter_file set_ftrace_filter
-
do_function_fork=1

if [ ! -f options/function-fork ]; then
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 b2aff786c1a2..0f41e441c203 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
@@ -1,10 +1,9 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - stacktrace filter command
+# requires: set_ftrace_filter
# flags: instance

-check_filter_file set_ftrace_filter
-
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_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index e9b1fd534e96..3145b0f1835c 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -3,15 +3,14 @@
# description: ftrace - test for function event triggers
# flags: instance
#
+# The triggers are set within the set_ftrace_filter file
+# requires: set_ftrace_filter
+#
# Ftrace allows to add triggers to functions, such as enabling or disabling
# tracing, enabling or disabling trace events, or recording a stack trace
# within the ring buffer.
#
# This test is designed to test event triggers
-#
-
-# The triggers are set within the set_ftrace_filter file
-check_filter_file set_ftrace_filter

do_reset() {
reset_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
index 1a4b4a442d33..37c8feb9078b 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
@@ -1,8 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function trace on module
-
-check_filter_file set_ftrace_filter
+# requires: set_ftrace_filter

: "mod: allows to filter a non exist function"
echo 'non_exist_func:mod:non_exist_module' > set_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 817d504f751c..8b487daaaf68 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -1,7 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function profiler with function tracing
-# requires: function_profile_enabled
+# requires: function_profile_enabled set_ftrace_filter

# There was a bug after a rewrite of the ftrace infrastructure that
# caused the function_profiler not to be able to run with the function
@@ -19,8 +19,6 @@ if ! grep -q function_graph available_tracers; then
exit_unsupported;
fi

-check_filter_file set_ftrace_filter
-
fail() { # mesg
echo $1
exit_fail
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
index 70bad441fa7d..e96e279e0533 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
@@ -2,6 +2,9 @@
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - test reading of set_ftrace_filter
#
+# The triggers are set within the set_ftrace_filter file
+# requires: set_ftrace_filter
+#
# The set_ftrace_filter file of ftrace is used to list functions as well as
# triggers (probes) attached to functions. The code to read this file is not
# straight forward and has had various bugs in the past. This test is designed
@@ -9,9 +12,6 @@
# file in various ways (cat vs dd).
#

-# The triggers are set within the set_ftrace_filter file
-check_filter_file set_ftrace_filter
-
fail() { # mesg
echo $1
exit_fail
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
index b3d78ef6c639..61264e422699 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
@@ -1,11 +1,9 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - Max stack tracer
-# requires: stack_trace
+# requires: stack_trace stack_trace_filter
# Test the basic function of max-stack usage tracing

-check_filter_file stack_trace_filter
-
echo > stack_trace_filter
echo 0 > stack_max_size
echo 1 > /proc/sys/kernel/stack_tracer_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
index 3ed173f2944a..aee22289536b 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
@@ -3,6 +3,9 @@
# description: ftrace - test for function traceon/off triggers
# flags: instance
#
+# The triggers are set within the set_ftrace_filter file
+# requires: set_ftrace_filter
+#
# Ftrace allows to add triggers to functions, such as enabling or disabling
# tracing, enabling or disabling trace events, or recording a stack trace
# within the ring buffer.
@@ -10,9 +13,6 @@
# This test is designed to test enabling and disabling tracing triggers
#

-# The triggers are set within the set_ftrace_filter file
-check_filter_file set_ftrace_filter
-
fail() { # mesg
echo $1
exit_fail
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 5100eb1ada0f..cd2756c77ed9 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -1,10 +1,3 @@
-check_filter_file() { # check filter file introduced by dynamic ftrace
- if [ ! -f "$1" ]; then
- echo "$1 not found? Is dynamic ftrace not set?"
- exit_unsupported
- fi
-}
-
clear_trace() { # reset trace output
echo > trace
}
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index b7f8536438bd..9a983df5ae17 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -1,12 +1,10 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: Kprobe dynamic event with function tracer
-# requires: kprobe_events
+# requires: kprobe_events stack_trace_filter

grep "function" available_tracers || exit_unsupported # this is configurable

-check_filter_file set_ftrace_filter
-
# prepare
echo nop > current_tracer
echo _do_fork > set_ftrace_filter