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Code Issues Releases Activity

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

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same as
https://github.com/open-telemetry/opentelemetry-go-instrumentation/pull/1971

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
This commit is contained in:
Ron Federman
2025-03-13 18:35:35 +02:00
committed by GitHub
parent fabeef0a8f
commit b7ca1e18c4
1 changed files with 3 additions and 2 deletions
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5
trace/auto.go
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@@ -57,14 +57,15 @@ type autoTracer struct {
var _ Tracer = autoTracer{} var _ Tracer = autoTracer{}
func (t autoTracer) Start(ctx context.Context, name string, opts ...SpanStartOption) (context.Context, Span) { func (t autoTracer) Start(ctx context.Context, name string, opts ...SpanStartOption) (context.Context, Span) {
var psc SpanContext var psc, sc SpanContext
sampled := true sampled := true
span := new(autoSpan) span := new(autoSpan)
// Ask eBPF for sampling decision and span context info. // 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.sampled.Store(sampled)
span.spanContext = sc
ctx = ContextWithSpan(ctx, span) ctx = ContextWithSpan(ctx, span)