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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "tests.h"
#include "debugfs.h"
int trace_event__id(const char *evname)
{
char *filename;
int err = -1, fd;
if (asprintf(&filename,
"%s/syscalls/%s/id",
tracing_events_path, evname) < 0)
return -1;
fd = open(filename, O_RDONLY);
if (fd >= 0) {
char id[16];
if (read(fd, id, sizeof(id)) > 0)
err = atoi(id);
close(fd);
}
free(filename);
return err;
}
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