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2001023)
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ /* Kprobes expects a NULL symbol name if unused */
+ if (symbol_name[0] == '\0')
+ symbol_name = NULL;
+
ret = lttng_create_kprobe_event(name, event);
if (ret)
goto error;
memset(&event->u.kprobe.kp, 0, sizeof(event->u.kprobe.kp));
event->u.kprobe.kp.pre_handler = lttng_kprobes_handler_pre;
ret = lttng_create_kprobe_event(name, event);
if (ret)
goto error;
memset(&event->u.kprobe.kp, 0, sizeof(event->u.kprobe.kp));
event->u.kprobe.kp.pre_handler = lttng_kprobes_handler_pre;
- event->u.kprobe.symbol_name =
- kzalloc(LTTNG_SYM_NAME_LEN * sizeof(char),
- GFP_KERNEL);
- if (!event->u.kprobe.symbol_name) {
- ret = -ENOMEM;
- goto name_error;
+ if (symbol_name) {
+ event->u.kprobe.symbol_name =
+ kzalloc(LTTNG_SYM_NAME_LEN * sizeof(char),
+ GFP_KERNEL);
+ if (!event->u.kprobe.symbol_name) {
+ ret = -ENOMEM;
+ goto name_error;
+ }
+ memcpy(event->u.kprobe.symbol_name, symbol_name,
+ LTTNG_SYM_NAME_LEN * sizeof(char));
+ event->u.kprobe.kp.symbol_name =
+ event->u.kprobe.symbol_name;
- memcpy(event->u.kprobe.symbol_name, symbol_name,
- LTTNG_SYM_NAME_LEN * sizeof(char));
- event->u.kprobe.kp.symbol_name =
- event->u.kprobe.symbol_name;
event->u.kprobe.kp.offset = offset;
event->u.kprobe.kp.addr = (void *) addr;
event->u.kprobe.kp.offset = offset;
event->u.kprobe.kp.addr = (void *) addr;