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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2008, 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
*
*/
#include <stdio.h>
#include <string.h>
#include <getopt.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/syscall.h>
#include "trace-local.h"
int silence_warnings;
int show_status;
#ifndef gettid
#define gettid() syscall(__NR_gettid)
#endif
void warning(const char *fmt, ...)
{
va_list ap;
if (silence_warnings)
return;
if (errno)
perror("trace-cmd");
errno = 0;
va_start(ap, fmt);
fprintf(stderr, " ");
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
}
void *malloc_or_die(unsigned int size)
{
void *data;
data = malloc(size);
if (!data)
die("malloc");
return data;
}
void tracecmd_debug(const char *fmt, ...)
{
va_list ap;
if (!tracecmd_get_debug())
return;
va_start(ap, fmt);
printf("[%d] ", (int)gettid());
vprintf(fmt, ap);
va_end(ap);
}
static struct trace_log_severity {
int id;
const char *name;
} log_severity[] = {
{ .id = TEP_LOG_NONE, .name = "none" },
{ .id = TEP_LOG_CRITICAL, .name = "crit" },
{ .id = TEP_LOG_ERROR, .name = "err" },
{ .id = TEP_LOG_WARNING, .name = "warn" },
{ .id = TEP_LOG_INFO, .name = "info" },
{ .id = TEP_LOG_DEBUG, .name = "debug" },
{ .id = TEP_LOG_ALL, .name = "all" },
};
int trace_set_verbose(char *level)
{
int id;
/* Default level is info */
if (!level)
level = "info";
if (isdigit(level[0])) {
id = atoi(level);
if (id >= TEP_LOG_NONE) {
if (id > TEP_LOG_ALL)
id = TEP_LOG_ALL;
tracecmd_set_loglevel(id);
return 0;
}
} else {
int size = ARRAY_SIZE(log_severity);
int i;
for (i = 0; i < size; i++) {
if (!strncmp(level, log_severity[i].name, strlen(log_severity[i].name))) {
tracecmd_set_loglevel(log_severity[i].id);
return 0;
}
}
}
return -1;
}
/**
* struct command
* @name command name
* @run function to execute on command `name`
*/
struct command {
char *name;
void (*run)(int argc, char **argv);
};
/**
* Lookup table that maps command names to functions
*/
struct command commands[] = {
{"report", trace_report},
{"snapshot", trace_snapshot},
{"hist", trace_hist},
{"mem", trace_mem},
{"listen", trace_listen},
{"agent", trace_agent},
{"setup-guest", trace_setup_guest},
{"split", trace_split},
{"restore", trace_restore},
{"stack", trace_stack},
{"check-events", trace_check_events},
{"record", trace_record},
{"start", trace_start},
{"set", trace_set},
{"extract", trace_extract},
{"stop", trace_stop},
{"stream", trace_stream},
{"profile", trace_profile},
{"restart", trace_restart},
{"clear", trace_clear},
{"reset", trace_reset},
{"stat", trace_stat},
{"options", trace_option},
{"show", trace_show},
{"list", trace_list},
{"help", trace_usage},
{"dump", trace_dump},
{"convert", trace_convert},
{"-h", trace_usage},
};
int main (int argc, char **argv)
{
int i;
errno = 0;
if (argc < 2)
trace_usage(argc, argv);
for (i = 0; i < ARRAY_SIZE(commands); ++i) {
if (strcmp(argv[1], commands[i].name) == 0 ){
commands[i].run(argc, argv);
goto out;
}
}
/* No valid command found, show help */
trace_usage(argc, argv);
out:
exit(0);
}
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