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perf intel-pt: Factor out intel_pt_get_buffer() 

Factor out intel_pt_get_buffer() so it can be reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190604130017.31207-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-06-04 16:00:07 +03:00 committed by Arnaldo Carvalho de Melo
parent a7fa19f5a2
commit e96f7df880
1 changed files with 37 additions and 23 deletions
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60
tools/perf/util/intel-pt.c
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@ -239,32 +239,13 @@ static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *
return 0;
}
/* This function assumes data is processed sequentially only */
static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data)
static int intel_pt_get_buffer(struct intel_pt_queue *ptq,
struct auxtrace_buffer *buffer,
struct auxtrace_buffer *old_buffer,
struct intel_pt_buffer *b)
{
struct intel_pt_queue *ptq = data;
struct auxtrace_buffer *buffer = ptq->buffer;
struct auxtrace_buffer *old_buffer = ptq->old_buffer;
struct auxtrace_queue *queue;
bool might_overlap;
if (ptq->stop) {
b->len = 0;
return 0;
}
queue = &ptq->pt->queues.queue_array[ptq->queue_nr];
buffer = auxtrace_buffer__next(queue, buffer);
if (!buffer) {
if (old_buffer)
auxtrace_buffer__drop_data(old_buffer);
b->len = 0;
return 0;
}
ptq->buffer = buffer;
if (!buffer->data) {
int fd = perf_data__fd(ptq->pt->session->data);
@ -294,6 +275,39 @@ static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data)
b->consecutive = true;
}
return 0;
}
/* This function assumes data is processed sequentially only */
static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data)
{
struct intel_pt_queue *ptq = data;
struct auxtrace_buffer *buffer = ptq->buffer;
struct auxtrace_buffer *old_buffer = ptq->old_buffer;
struct auxtrace_queue *queue;
int err;
if (ptq->stop) {
b->len = 0;
return 0;
}
queue = &ptq->pt->queues.queue_array[ptq->queue_nr];
buffer = auxtrace_buffer__next(queue, buffer);
if (!buffer) {
if (old_buffer)
auxtrace_buffer__drop_data(old_buffer);
b->len = 0;
return 0;
}
ptq->buffer = buffer;
err = intel_pt_get_buffer(ptq, buffer, old_buffer, b);
if (err)
return err;
if (ptq->step_through_buffers)
ptq->stop = true;