return data;
}
-static char last_hist_cmd[MAX_FILTER_STR_VAL];
+static char last_cmd[MAX_FILTER_STR_VAL];
+static char last_cmd_loc[MAX_FILTER_STR_VAL];
+
static char hist_err_str[MAX_FILTER_STR_VAL];
-static void last_cmd_set(char *str)
+static void last_cmd_set(struct trace_event_file *file, char *str)
{
+ const char *system = NULL, *name = NULL;
+ struct trace_event_call *call;
+
if (!str)
return;
- strncpy(last_hist_cmd, str, MAX_FILTER_STR_VAL - 1);
+ strncpy(last_cmd, str, MAX_FILTER_STR_VAL - 1);
+
+ if (file) {
+ call = file->event_call;
+
+ system = call->class->system;
+ if (system) {
+ name = trace_event_name(call);
+ if (!name)
+ system = NULL;
+ }
+ }
+
+ if (system)
+ snprintf(last_cmd_loc, MAX_FILTER_STR_VAL, "hist:%s:%s", system, name);
}
static void hist_err(char *str, char *var)
static void hist_err_clear(void)
{
hist_err_str[0] = '\0';
+ last_cmd[0] = '\0';
+ last_cmd_loc[0] = '\0';
}
static bool have_hist_err(void)
}
if (have_hist_err()) {
- seq_printf(m, "\nERROR: %s\n", hist_err_str);
- seq_printf(m, " Last command: %s\n", last_hist_cmd);
+ seq_printf(m, "\n%s: error: \n", hist_err_str);
+ seq_printf(m, " Last command: %s\n", last_cmd);
}
out_unlock:
lockdep_assert_held(&event_mutex);
if (glob && strlen(glob)) {
- last_cmd_set(param);
hist_err_clear();
+ last_cmd_set(file, param);
}
if (!param)