diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/functions')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/functions | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 5f6cbec847fc..e8e718139294 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -104,7 +104,7 @@ clear_dynamic_events() { # reset all current dynamic events done } -initialize_ftrace() { # Reset ftrace to initial-state +initialize_system() { # Reset ftrace to initial-state # As the initial state, ftrace will be set to nop tracer, # no events, no triggers, no filters, no function filters, # no probes, and tracing on. @@ -134,23 +134,35 @@ initialize_ftrace() { # Reset ftrace to initial-state enable_tracing } -finish_ftrace() { - initialize_ftrace +finish_system() { + initialize_system # 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 "$@" ; do + p=${i%:program} r=${i%:README} t=${i%:tracer} - if [ $t != $i ]; then + if [ $p != $i ]; then + if ! which $p ; then + echo "Required program $p is not found." + exit_unresolved + fi + elif [ $t != $i ]; then if ! grep -wq $t available_tracers ; then echo "Required tracer $t is not configured." exit_unsupported fi elif [ "$r" != "$i" ]; then - if ! grep -Fq "$r" README ; then + # If this is an instance, check the top directory + if echo $TRACING_DIR | grep -q "/instances/"; then + test="$TRACING_DIR/../.." + else + test=$TRACING_DIR + fi + if ! grep -Fq "$r" $test/README ; then echo "Required feature pattern \"$r\" is not in README." exit_unsupported fi @@ -187,3 +199,28 @@ ftrace_errlog_check() { # err-prefix command-with-error-pos-by-^ command-file # " Command: " and "^\n" => 13 test $(expr 13 + $pos) -eq $N } + +# Helper to get the tracefs mount point +get_mount_point() { + local mount_point=`stat -c '%m' .` + + # If stat -c '%m' does not work (e.g. busybox) or failed, try to use the + # current working directory (which should be a tracefs) as the mount point. + if [ ! -d "$mount_point" ]; then + if mount | grep -qw "$PWD"; then + mount_point=$PWD + else + # If PWD doesn't work, that is an environmental problem. + exit_unresolved + fi + fi + echo "$mount_point" +} + +# Helper function to retrieve mount options for a given mount point +get_mnt_options() { + local mnt_point="$1" + local opts=$(mount | grep -m1 "$mnt_point" | sed -e 's/.*(\(.*\)).*/\1/') + + echo "$opts" +}
\ No newline at end of file |