accept and show stacktraces from uprobes

src/collector/otlp/service.rs

@@ -370,6 +370,7 @@ fn process_sample(
         let kind = match (sample_type_type, sample_type_unit) {
             ("samples", "count") => SampleKind::OnCPU,
             ("events", "nanoseconds") => SampleKind::OffCPU,
+            ("events", "count") => SampleKind::UProbe,
             _ => SampleKind::Unknown,
         };
 

src/storage/tables/traceevents.rs

@@ -31,6 +31,7 @@ pub enum SampleKind {
     Mixed,
     OnCPU,
     OffCPU,
+    UProbe,
     // _MaxKind should always be the last entry
     // in this enum.
     _MaxKind,
@@ -45,6 +46,7 @@ impl TryFrom<u8> for SampleKind {
             1 => Ok(SampleKind::Mixed),
             2 => Ok(SampleKind::OnCPU),
             3 => Ok(SampleKind::OffCPU),
+            4 => Ok(SampleKind::UProbe),
             _ => Err(()),
         }
     }

src/ui/app.rs

@@ -268,6 +268,7 @@ impl DevfilerUi {
                     ui.selectable_value(&mut self.kind, SampleKind::Mixed, "Mixed");
                     ui.selectable_value(&mut self.kind, SampleKind::OnCPU, "On CPU");
                     ui.selectable_value(&mut self.kind, SampleKind::OffCPU, "Off CPU");
+                    ui.selectable_value(&mut self.kind, SampleKind::UProbe, "UProbe");
                 });
 
             ui.label("Sample kind:");