[markushi]

PR Stack (ANR Flame Graph)

• feat(anr): Add flame graph attachment helper for ANR profiles #6596
• feat(anr): Send ANR profiles as flame graph attachments instead of profile chunks #6597

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📜 Description

ANR profiles are now sent as a flame graph attachment (flamegraph.json, event.flamegraph) on the ANR event, instead of a separate profile chunk. The event no longer gets a profile context.

• The flame graph is attached whenever a foreground ANR has a profile whose time range covers the ANR, also when no culprit stack is identified. The culprit still replaces the event exception, as before.
• The ProGuard UUID comes from the build that recorded the profile (persisted options after an app update), and falls back to the current UUID, matching the old profile chunk behavior.
• StackTraceConverter (AnrProfile → SentryProfile) has no callers left and is removed. Its two frame helpers move into AnrFlameGraphAttachment.
• AnrHintEnricher casts to AnrV2Hint once, which removes the impossible AbnormalExit / null-timestamp branches. Hint names are untangled: hint is only the io.sentry.Hint container, sdkHint the unwrapped object, backfillable the generic view, anrHint the AnrV2Hint.

💡 Motivation and Context

An ANR profile is a few seconds of main thread samples. A flame graph attachment shows the aggregated call tree directly on the issue, without the profile chunk pipeline.

💚 How did you test it?

Unit tests: ApplicationExitInfoEventProcessorTest (flame graph attached, persisted and fallback ProGuard UUID, no culprit), AnrFlameGraphAttachmentTest (native frames and unknown line numbers, previously covered by AnrStackTraceConverterTest).

📝 Checklist

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• No breaking change or entry added to the changelog.

🔮 Next steps

🤖 Generated with Claude Code

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📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
SDK Size	io.sentry.tests.size	8.64.0 (1)	release

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