static int perf_session__open(struct perf_session *session)
{
struct perf_data_file *file = session->file;
if (perf_session__read_header(session) < 0) {
pr_err("incompatible file format (rerun with -v to learn more)");
return -1;
}
if (perf_data_file__is_pipe(file))
return 0;
if (!perf_evlist__valid_sample_type(session->evlist)) {
pr_err("non matching sample_type");
return -1;
}
if (!perf_evlist__valid_sample_id_all(session->evlist)) {
pr_err("non matching sample_id_all");
return -1;
}
if (!perf_evlist__valid_read_format(session->evlist)) {
pr_err("non matching read_format");
return -1;
}
return 0;
}
static int perf_session__list_build_ids(bool force, bool with_hits)
{
struct perf_session *session;
struct perf_data_file file = {
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
symbol__elf_init();
/*
* See if this is an ELF file first:
*/
if (filename__fprintf_build_id(input_name, stdout) > 0)
goto out;
session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
if (session == NULL)
return -1;
/*
* We take all buildids when the file contains AUX area tracing data
* because we do not decode the trace because it would take too long.
*/
if (!perf_data_file__is_pipe(&file) &&
perf_header__has_feat(&session->header, HEADER_AUXTRACE))
with_hits = false;
/*
* in pipe-mode, the only way to get the buildids is to parse
* the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
*/
if (with_hits || perf_data_file__is_pipe(&file))
perf_session__process_events(session);
perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
perf_session__delete(session);
out:
return 0;
}
static int auxtrace_queues__add_event_buffer(struct auxtrace_queues *queues,
struct perf_session *session,
unsigned int idx,
struct auxtrace_buffer *buffer)
{
if (session->one_mmap) {
buffer->data = buffer->data_offset - session->one_mmap_offset +
session->one_mmap_addr;
} else if (perf_data_file__is_pipe(session->file)) {
buffer->data = auxtrace_copy_data(buffer->size, session);
if (!buffer->data)
return -ENOMEM;
buffer->data_needs_freeing = true;
} else if (BITS_PER_LONG == 32 &&
buffer->size > BUFFER_LIMIT_FOR_32_BIT) {
int err;
err = auxtrace_queues__split_buffer(queues, idx, buffer);
if (err)
return err;
}
return auxtrace_queues__add_buffer(queues, idx, buffer);
}
