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