Commit 25b95138 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Steven Rostedt (VMware)
Browse files

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

Stop tracing while reading the trace file by default, to prevent
the test results while checking it and to avoid taking a long time
to check the result.
If there is any testcase which wants to test the tracing while reading
the 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@devnote2



Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 5c03d8fb

tools/testing/selftests/ftrace/ftracetest

+1 −1
Original line number Diff line number Diff line
@@ -428,7 +428,7 @@ for t in $TEST_CASES; do 
    exit 1

  fi

done

(cd $TRACING_DIR; initialize_ftrace) # for cleanup

(cd $TRACING_DIR; finish_ftrace) # for cleanup



prlog ""

prlog "# of passed: " `echo $PASSED_CASES | wc -w`

tools/testing/selftests/ftrace/test.d/functions

+12 −0
Original line number Diff line number Diff line
@@ -124,10 +124,22 @@ initialize_ftrace() { # Reset ftrace to initial-state 
    [ -f uprobe_events ] && echo > uprobe_events

    [ -f synthetic_events ] && echo > synthetic_events

    [ -f snapshot ] && echo 0 > snapshot



# Stop tracing while reading the trace file by default, to prevent

# the test results while checking it and to avoid taking a long time

# to check the result.

    [ -f options/pause-on-trace ] && echo 1 > options/pause-on-trace



    clear_trace

    enable_tracing

}



finish_ftrace() {

    initialize_ftrace

# And recover it to default.

    [ -f options/pause-on-trace ] && echo 0 > options/pause-on-trace

}



check_requires() { # Check required files and tracers

    for i in "$@" ; do

        r=${i%:README}