static int trace_event__init2(void)
{
int be = traceevent_host_bigendian();
struct pevent *pevent;
if (trace_event__init(&tevent))
return -1;
pevent = tevent.pevent;
pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
pevent_set_file_bigendian(pevent, be);
pevent_set_host_bigendian(pevent, be);
tevent_initialized = true;
return 0;
}
ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe)
{
char buf[BUFSIZ];
char test[] = { 23, 8, 68 };
char *version;
int show_version = 0;
int show_funcs = 0;
int show_printk = 0;
ssize_t size = -1;
int file_bigendian;
int host_bigendian;
int file_long_size;
int file_page_size;
struct tep_handle *pevent = NULL;
int err;
repipe = __repipe;
input_fd = fd;
if (do_read(buf, 3) < 0)
return -1;
if (memcmp(buf, test, 3) != 0) {
pr_debug("no trace data in the file");
return -1;
}
if (do_read(buf, 7) < 0)
return -1;
if (memcmp(buf, "tracing", 7) != 0) {
pr_debug("not a trace file (missing 'tracing' tag)");
return -1;
}
version = read_string();
if (version == NULL)
return -1;
if (show_version)
printf("version = %s\n", version);
if (do_read(buf, 1) < 0) {
free(version);
return -1;
}
file_bigendian = buf[0];
host_bigendian = bigendian();
if (trace_event__init(tevent)) {
pr_debug("trace_event__init failed");
goto out;
}
pevent = tevent->pevent;
tep_set_flag(pevent, TEP_NSEC_OUTPUT);
tep_set_file_bigendian(pevent, file_bigendian);
tep_set_host_bigendian(pevent, host_bigendian);
if (do_read(buf, 1) < 0)
goto out;
file_long_size = buf[0];
file_page_size = read4(pevent);
if (!file_page_size)
goto out;
tep_set_long_size(pevent, file_long_size);
tep_set_page_size(pevent, file_page_size);
err = read_header_files(pevent);
if (err)
goto out;
err = read_ftrace_files(pevent);
if (err)
goto out;
err = read_event_files(pevent);
if (err)
goto out;
err = read_proc_kallsyms(pevent);
if (err)
goto out;
err = read_ftrace_printk(pevent);
if (err)
goto out;
if (atof(version) >= 0.6) {
err = read_saved_cmdline(pevent);
if (err)
goto out;
}
size = trace_data_size;
repipe = false;
if (show_funcs) {
tep_print_funcs(pevent);
} else if (show_printk) {
tep_print_printk(pevent);
}
pevent = NULL;
out:
if (pevent)
trace_event__cleanup(tevent);
free(version);
return size;
}
