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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
*
*/
#include <stdlib.h>
#include <getopt.h>
#include <errno.h>
#include "tracefs.h"
#include "trace-local.h"
enum {
OPT_verbose = 255,
};
void trace_check_events(int argc, char **argv)
{
const char *tracing;
int ret, c;
int parsing_failures = 0;
struct tep_handle *pevent = NULL;
struct tep_plugin_list *list = NULL;
int open_flags = 0;
int option_index = 0;
static struct option long_options[] = {
{"verbose", optional_argument, NULL, OPT_verbose},
{NULL, 0, NULL, 0}
};
while ((c = getopt_long(argc-1, argv+1, "+hN", long_options, &option_index)) >= 0) {
switch (c) {
case 'h':
default:
usage(argv);
break;
case 'N':
open_flags |= TRACECMD_FL_LOAD_NO_PLUGINS;
break;
case OPT_verbose:
if (trace_set_verbose(optarg) < 0)
die("invalid verbose level %s", optarg);
break;
}
}
tracing = tracefs_tracing_dir();
if (!tracing) {
printf("Can not find or mount tracing directory!\n"
"Either tracing is not configured for this "
"kernel\n"
"or you do not have the proper permissions to "
"mount the directory");
exit(EINVAL);
}
pevent = tep_alloc();
if (!pevent)
exit(EINVAL);
list = trace_load_plugins(pevent, open_flags);
ret = tracefs_fill_local_events(tracing, pevent, &parsing_failures);
if (ret || parsing_failures)
ret = EINVAL;
tep_unload_plugins(list, pevent);
tep_free(pevent);
return;
}
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