static int auxtrace_queues__split_buffer(struct auxtrace_queues *queues,
unsigned int idx,
struct auxtrace_buffer *buffer)
{
u64 sz = buffer->size;
bool consecutive = false;
struct auxtrace_buffer *b;
int err;
while (sz > BUFFER_LIMIT_FOR_32_BIT) {
b = memdup(buffer, sizeof(struct auxtrace_buffer));
if (!b)
return -ENOMEM;
b->size = BUFFER_LIMIT_FOR_32_BIT;
b->consecutive = consecutive;
err = auxtrace_queues__add_buffer(queues, idx, b);
if (err) {
auxtrace_buffer__free(b);
return err;
}
buffer->data_offset += BUFFER_LIMIT_FOR_32_BIT;
sz -= BUFFER_LIMIT_FOR_32_BIT;
consecutive = true;
}
buffer->size = sz;
buffer->consecutive = consecutive;
return 0;
}
int auxtrace_queues__add_event(struct auxtrace_queues *queues,
struct perf_session *session,
union perf_event *event, off_t data_offset,
struct auxtrace_buffer **buffer_ptr)
{
struct auxtrace_buffer *buffer;
unsigned int idx;
int err;
buffer = zalloc(sizeof(struct auxtrace_buffer));
if (!buffer)
return -ENOMEM;
buffer->pid = -1;
buffer->tid = event->auxtrace.tid;
buffer->cpu = event->auxtrace.cpu;
buffer->data_offset = data_offset;
buffer->offset = event->auxtrace.offset;
buffer->reference = event->auxtrace.reference;
buffer->size = event->auxtrace.size;
idx = event->auxtrace.idx;
err = auxtrace_queues__add_event_buffer(queues, session, idx, buffer);
if (err)
goto out_err;
if (buffer_ptr)
*buffer_ptr = buffer;
return 0;
out_err:
auxtrace_buffer__free(buffer);
return err;
}
void auxtrace_queues__free(struct auxtrace_queues *queues)
{
unsigned int i;
for (i = 0; i < queues->nr_queues; i++) {
while (!list_empty(&queues->queue_array[i].head)) {
struct auxtrace_buffer *buffer;
buffer = list_entry(queues->queue_array[i].head.next,
struct auxtrace_buffer, list);
list_del(&buffer->list);
auxtrace_buffer__free(buffer);
}
}
zfree(&queues->queue_array);
queues->nr_queues = 0;
}
