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authorAdrian Hunter <adrian.hunter@intel.com>2019-06-04 16:00:07 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-06-10 16:20:12 -0300
commite96f7df8807615b96af59f8f8bc6263a7adc27b7 (patch)
tree030b55ed8083b5bc74a94caa8387144bd633e7fe
parenta7fa19f5a255cc8970202d5c54092089a01fc042 (diff)
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>
-rw-r--r--tools/perf/util/intel-pt.c60
1 files changed, 37 insertions, 23 deletions
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 3cff8fe2eaa0..4a61c73c9711 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -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;