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trace/auto pass stack allocated span context var to ebpf #6434

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Merged
MrAlias merged 2 commits into from
Mar 13, 2025
Merged

trace/auto pass stack allocated span context var to ebpf #6434

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de1344b
trace/auto pass stack allocated span context var to ebpf
RonFed Mar 12, 2025
ccc22b0
Merge branch 'main' into trace_auto_pass_stack_var
MrAlias Mar 13, 2025
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5 changes: 3 additions & 2 deletions trace/auto.go
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Original file line number Diff line number Diff line change
Expand Up @@ -57,14 +57,15 @@ type autoTracer struct {
var _ Tracer = autoTracer{}

func (t autoTracer) Start(ctx context.Context, name string, opts ...SpanStartOption) (context.Context, Span) {
var psc SpanContext
var psc, sc SpanContext
sampled := true
span := new(autoSpan)

// Ask eBPF for sampling decision and span context info.
t.start(ctx, span, &psc, &sampled, &span.spanContext)
t.start(ctx, span, &psc, &sampled, &sc)

span.sampled.Store(sampled)
span.spanContext = sc

ctx = ContextWithSpan(ctx, span)

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