Use `gen-syscall-events` testapp in conjuction with the LTTng PID
tracker to improve the reliability of the syscall tracing tests by only
tracing the test app's activity.
Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../..
CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../..
-# test command issues at least open and close system calls
-TESTCMD="cat /proc/cpuinfo > /dev/null"
+# `gen-syscall-event` starts and waits for the creation a file passed by
+# arguments to start executing 3 syscalls (open,read,close) and returning.
+TESTCMD="$TESTDIR/utils/testapp/gen-syscall-events/gen-syscall-events"
source $TESTDIR/utils/utils.sh
source $TESTDIR/utils/utils.sh
+function trace_testapp()
+{
+ local start_file_sync
+ start_file_sync=$(mktemp -u)
+
+ # Clear all entries from the resource tracker
+ lttng_untrack_kernel_all_ok
+
+ # Launch the testapp and save its Process ID
+ ./"$TESTCMD" "$start_file_sync" &
+ PID=$!
+
+ # Set LTTng to track this PID and start the tracing
+ lttng_track_pid_ok $PID
+
+ start_lttng_tracing_ok
+
+ # Create start file to launch the execution of the workload by the
+ # test app
+ touch "$start_file_sync"
+
+ wait $PID
+
+ stop_lttng_tracing_ok
+
+ # Clean up the synchronization file
+ rm -f "$start_file_sync"
+}
+
function validate_list()
{
local session_name=$1
function validate_list()
{
local session_name=$1
validate_list $SESSION_NAME $EVENT_NAME
validate_list $SESSION_NAME $EVENT_NAME
- start_lttng_tracing_ok
- eval ${TESTCMD}
- stop_lttng_tracing_ok
- # ensure each is there.
+ # ensure all events are in the trace.
validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
validate_list $SESSION_NAME $EVENT_NAME
validate_list $SESSION_NAME $EVENT_NAME2
validate_list $SESSION_NAME $EVENT_NAME
validate_list $SESSION_NAME $EVENT_NAME2
- start_lttng_tracing_ok
- eval ${TESTCMD}
- stop_lttng_tracing_ok
- # ensure each is there.
+ # ensure all events are in the trace.
validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
- # ensure each is there.
validate_trace_exp "-e syscall_entry_$EVENT_NAME2: -e compat_syscall_entry_$EVENT_NAME2:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_$EVENT_NAME2: -e compat_syscall_exit_$EVENT_NAME2:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_$EVENT_NAME2: -e compat_syscall_entry_$EVENT_NAME2:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_$EVENT_NAME2: -e compat_syscall_exit_$EVENT_NAME2:" $TRACE_PATH
lttng_enable_kernel_syscall_ok $SESSION_NAME "open"
lttng_enable_kernel_syscall_ok $SESSION_NAME "open"
- start_lttng_tracing_ok
- eval ${TESTCMD}
- stop_lttng_tracing_ok
- # ensure each is there.
+ # ensure all events are in the trace.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
lttng_enable_kernel_syscall_ok $SESSION_NAME "open"
lttng_enable_kernel_syscall_ok $SESSION_NAME "close"
lttng_enable_kernel_syscall_ok $SESSION_NAME "open"
lttng_enable_kernel_syscall_ok $SESSION_NAME "close"
- start_lttng_tracing_ok
- eval ${TESTCMD}
- stop_lttng_tracing_ok
- # ensure each is there.
+ # ensure all events are in the trace.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
# enable all syscalls
lttng_enable_kernel_syscall_ok $SESSION_NAME
# enable all syscalls
lttng_enable_kernel_syscall_ok $SESSION_NAME
- start_lttng_tracing_ok
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure at least open and close are there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
# ensure at least open and close are there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
# "all syscalls" is not "the open" system call.
lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
# "all syscalls" is not "the open" system call.
lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
- start_lttng_tracing_ok
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure "open" syscall is there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
# ensure "open" syscall is there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
lttng_disable_kernel_syscall_fail $SESSION_NAME "close"
lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
lttng_disable_kernel_syscall_fail $SESSION_NAME "close"
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure "open" syscall is there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
# ensure "open" syscall is there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
- # ensure "execve" syscall is there.
- validate_trace_exp "-e syscall_entry_execve: -e compat_syscall_entry_execve:" $TRACE_PATH
- validate_trace_exp "-e syscall_exit_execve: -e compat_syscall_exit_execve:" $TRACE_PATH
+ # ensure "read" syscall is there.
+ validate_trace_exp "-e syscall_entry_read: -e compat_syscall_entry_read:" $TRACE_PATH
+ validate_trace_exp "-e syscall_exit_read: -e compat_syscall_exit_read:" $TRACE_PATH
destroy_lttng_session_ok $SESSION_NAME
destroy_lttng_session_ok $SESSION_NAME
# disable all system calls
lttng_disable_kernel_syscall_ok $SESSION_NAME
# disable all system calls
lttng_disable_kernel_syscall_ok $SESSION_NAME
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# enable all system calls
lttng_enable_kernel_syscall_ok $SESSION_NAME
# enable all system calls
lttng_enable_kernel_syscall_ok $SESSION_NAME
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure at least open and close are there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
# ensure at least open and close are there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
# disable all system calls
lttng_disable_kernel_syscall_ok $SESSION_NAME
# disable all system calls
lttng_disable_kernel_syscall_ok $SESSION_NAME
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# disable open system call
lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
# disable open system call
lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# ensure nothing has been traced.
validate_trace_empty $TRACE_PATH
# disable close system call
lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
# disable close system call
lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
- start_lttng_tracing_ok
- # generates open, close, execve (at least)
- eval ${TESTCMD}
- stop_lttng_tracing_ok
# ensure open is there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
# ensure open is there.
validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open:" $TRACE_PATH
*/
int main(int argc, char **argv)
{
*/
int main(int argc, char **argv)
{
char buf[MAX_LEN];
char *start_file;
char buf[MAX_LEN];
char *start_file;
+function lttng_track_pid_ok()
+{
+ PID=$1
+ "$TESTDIR/../src/bin/lttng/$LTTNG_BIN" track --kernel --pid=$PID 1> $OUTPUT_DEST 2> $ERROR_OUTPUT_DEST
+ ok $? "Lttng track pid on the kernel domain"
+}
+
+function lttng_untrack_kernel_all_ok()
+{
+ "$TESTDIR/../src/bin/lttng/$LTTNG_BIN" untrack --kernel --pid --all 1> $OUTPUT_DEST 2> $ERROR_OUTPUT_DEST
+ ok $? "Lttng untrack all pid on the kernel domain"
+}
+
function add_context_lttng()
{
local expected_to_fail="$1"
function add_context_lttng()
{
local expected_to_fail="$1"