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Detach LLDB and print stack trace on process stop - #188576
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This is just cleanup I threw in since I was touching this code.
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This pull request introduces a mechanism to detect early iOS app crashes before the Dart VM service is found by using an app termination log interceptor and setting up LLDB stop hooks to detach and print backtraces. Feedback on these changes suggests cleaning up the new log interceptor to prevent memory leaks, guarding the completer against multiple activations, and retaining a fallback timeout for CI runs to prevent indefinite hangs. Additionally, it is recommended to simplify the LLDB log regular expressions and handle potential null values for the LLDB process to avoid silent hangs during setup.
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…#12081) Manual roll Flutter from 0c80830e465b to ca9f874f5284 (119 revisions) Manual roll requested by [email protected] flutter/flutter@0c80830...ca9f874 2026-06-30 [email protected] [tool] Don't require a Flutter compile task when staging jniLibs (flutter/flutter#188805) 2026-06-30 [email protected] [Impeller] Fix potential overflow when allocating buffers at the next power of two size (flutter/flutter#188742) 2026-06-30 [email protected] [Framework/Tool] Decouple preview theme imports (flutter/flutter#188176) 2026-06-30 [email protected] Add import of `dart:_js_interop_wasm` in sdk rewriter tool (flutter/flutter#188620) 2026-06-30 [email protected] Detach LLDB and print stack trace on process stop (flutter/flutter#188576) 2026-06-30 [email protected] [Linux] Fix FlCompositorOpenGL.pixels comment (flutter/flutter#188754) 2026-06-30 [email protected] [flutter_tools] Fix crash in flutter create when pubspec.yaml is empty (flutter/flutter#188385) 2026-06-30 [email protected] Roll Packages from 656ccaa to 274ed3e (23 revisions) (flutter/flutter#188792) 2026-06-30 [email protected] In AndroidImageGenerator, check that the destination pixel buffer has sufficient capacity for the decoded data (flutter/flutter#188752) 2026-06-30 [email protected] Roll pub packages (flutter/flutter#188773) 2026-06-30 [email protected] [Impeller] Add a flat VertexAttributeFormat for vertex inputs (flutter/flutter#188684) 2026-06-30 [email protected] Roll pub packages (flutter/flutter#188764) 2026-06-30 [email protected] Roll Dart SDK from 0cb483880b6b to e1bdb9ce3327 (2 revisions) (flutter/flutter#188763) 2026-06-29 [email protected] Handle 'no permissions' adb device state (flutter/flutter#187248) 2026-06-29 [email protected] [windows]: adjusts uniform buffers to hit hlsl optimization (flutter/flutter#188538) 2026-06-29 [email protected] Roll Skia from bfb7860cb9c7 to 71947c4110b0 (9 revisions) (flutter/flutter#188747) 2026-06-29 [email protected] ci: extract wait-for-engine-build logic into a reusable composite action (flutter/flutter#188748) 2026-06-29 [email protected] Provide guided migration logs when iOS app crashes on simulator (flutter/flutter#188736) 2026-06-29 [email protected] Revert "[flutter_tools] Track asset transformer dependencies for hot reload" (flutter/flutter#188751) 2026-06-29 [email protected] Migrate ABI splits to new AGP dsl (flutter/flutter#188369) 2026-06-29 [email protected] Add Impeller+OpenGLES startup benchmark for mokey (flutter/flutter#188495) 2026-06-29 [email protected] Increase macOS minimum supported version from 10.15 to 12 to support Xcode 27 (flutter/flutter#188520) 2026-06-29 [email protected] Moves test ownership validation to flutter/flutter (flutter/flutter#188655) 2026-06-29 [email protected] Add --flavor support for Windows desktop builds (flutter/flutter#187034) 2026-06-29 [email protected] Android_hardware_smoke_test: Enable pixel exact local file comparator to read goldens from flutter asset URI (flutter/flutter#188587) 2026-06-29 [email protected] [flutter_tools] Use DeviceHub.app for iOS simulator path on Xcode 27+ (flutter/flutter#187910) 2026-06-29 [email protected] Roll Skia from 111e7582d081 to bfb7860cb9c7 (2 revisions) (flutter/flutter#188731) 2026-06-29 [email protected] Use `revert` label instead of `revert_wf` (flutter/flutter#188639) 2026-06-29 [email protected] Properly await Dart Development Service shutdown with timeout (flutter/flutter#188387) 2026-06-29 [email protected] [flutter_tools] Track asset transformer dependencies for hot reload (flutter/flutter#187947) 2026-06-29 [email protected] [Tool] Tolerate malformed UTF-8 in process streaming decoders (flutter/flutter#188453) 2026-06-29 [email protected] [flutter_tools] Use new ddc modules in test (flutter/flutter#188240) 2026-06-29 [email protected] Roll Packages from c1f7d92 to 656ccaa (12 revisions) (flutter/flutter#188728) 2026-06-29 [email protected] Remove unused fields (flutter/flutter#188705) 2026-06-29 [email protected] Clear text input handler widget on view dispose (flutter/flutter#188701) 2026-06-29 [email protected] Free compositor in view renderer finalize to avoid use-after-free (flutter/flutter#188702) 2026-06-29 [email protected] [linux] Use GWeakRef in mock signal handler test helper (flutter/flutter#188700) 2026-06-29 [email protected] Fixing few related editing issues with LTR/RTL text (flutter/flutter#188503) 2026-06-29 [email protected] [Flutter GPU] Add Texture.fromImage to wrap a ui.Image texture (flutter/flutter#188605) 2026-06-29 [email protected] [Flutter GPU] Honor the enable argument in RenderPass.setDepthWriteEnable (flutter/flutter#188715) 2026-06-29 [email protected] Roll Skia from ba1942d8c3e1 to 111e7582d081 (1 revision) (flutter/flutter#188721) 2026-06-29 [email protected] Roll Skia from 587d8befe1ee to ba1942d8c3e1 (6 revisions) (flutter/flutter#188717) 2026-06-29 [email protected] Remove some refs to package:intl (flutter/flutter#188504) 2026-06-29 [email protected] [VPAT] Update a11y assessment app FAB example to announce value change when it's updated. (flutter/flutter#188466) ...
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…flutter#12081) Manual roll Flutter from 0c80830e465b to ca9f874f5284 (119 revisions) Manual roll requested by [email protected] flutter/flutter@0c80830...ca9f874 2026-06-30 [email protected] [tool] Don't require a Flutter compile task when staging jniLibs (flutter/flutter#188805) 2026-06-30 [email protected] [Impeller] Fix potential overflow when allocating buffers at the next power of two size (flutter/flutter#188742) 2026-06-30 [email protected] [Framework/Tool] Decouple preview theme imports (flutter/flutter#188176) 2026-06-30 [email protected] Add import of `dart:_js_interop_wasm` in sdk rewriter tool (flutter/flutter#188620) 2026-06-30 [email protected] Detach LLDB and print stack trace on process stop (flutter/flutter#188576) 2026-06-30 [email protected] [Linux] Fix FlCompositorOpenGL.pixels comment (flutter/flutter#188754) 2026-06-30 [email protected] [flutter_tools] Fix crash in flutter create when pubspec.yaml is empty (flutter/flutter#188385) 2026-06-30 [email protected] Roll Packages from 656ccaa to 274ed3e (23 revisions) (flutter/flutter#188792) 2026-06-30 [email protected] In AndroidImageGenerator, check that the destination pixel buffer has sufficient capacity for the decoded data (flutter/flutter#188752) 2026-06-30 [email protected] Roll pub packages (flutter/flutter#188773) 2026-06-30 [email protected] [Impeller] Add a flat VertexAttributeFormat for vertex inputs (flutter/flutter#188684) 2026-06-30 [email protected] Roll pub packages (flutter/flutter#188764) 2026-06-30 [email protected] Roll Dart SDK from 0cb483880b6b to e1bdb9ce3327 (2 revisions) (flutter/flutter#188763) 2026-06-29 [email protected] Handle 'no permissions' adb device state (flutter/flutter#187248) 2026-06-29 [email protected] [windows]: adjusts uniform buffers to hit hlsl optimization (flutter/flutter#188538) 2026-06-29 [email protected] Roll Skia from bfb7860cb9c7 to 71947c4110b0 (9 revisions) (flutter/flutter#188747) 2026-06-29 [email protected] ci: extract wait-for-engine-build logic into a reusable composite action (flutter/flutter#188748) 2026-06-29 [email protected] Provide guided migration logs when iOS app crashes on simulator (flutter/flutter#188736) 2026-06-29 [email protected] Revert "[flutter_tools] Track asset transformer dependencies for hot reload" (flutter/flutter#188751) 2026-06-29 [email protected] Migrate ABI splits to new AGP dsl (flutter/flutter#188369) 2026-06-29 [email protected] Add Impeller+OpenGLES startup benchmark for mokey (flutter/flutter#188495) 2026-06-29 [email protected] Increase macOS minimum supported version from 10.15 to 12 to support Xcode 27 (flutter/flutter#188520) 2026-06-29 [email protected] Moves test ownership validation to flutter/flutter (flutter/flutter#188655) 2026-06-29 [email protected] Add --flavor support for Windows desktop builds (flutter/flutter#187034) 2026-06-29 [email protected] Android_hardware_smoke_test: Enable pixel exact local file comparator to read goldens from flutter asset URI (flutter/flutter#188587) 2026-06-29 [email protected] [flutter_tools] Use DeviceHub.app for iOS simulator path on Xcode 27+ (flutter/flutter#187910) 2026-06-29 [email protected] Roll Skia from 111e7582d081 to bfb7860cb9c7 (2 revisions) (flutter/flutter#188731) 2026-06-29 [email protected] Use `revert` label instead of `revert_wf` (flutter/flutter#188639) 2026-06-29 [email protected] Properly await Dart Development Service shutdown with timeout (flutter/flutter#188387) 2026-06-29 [email protected] [flutter_tools] Track asset transformer dependencies for hot reload (flutter/flutter#187947) 2026-06-29 [email protected] [Tool] Tolerate malformed UTF-8 in process streaming decoders (flutter/flutter#188453) 2026-06-29 [email protected] [flutter_tools] Use new ddc modules in test (flutter/flutter#188240) 2026-06-29 [email protected] Roll Packages from c1f7d92 to 656ccaa (12 revisions) (flutter/flutter#188728) 2026-06-29 [email protected] Remove unused fields (flutter/flutter#188705) 2026-06-29 [email protected] Clear text input handler widget on view dispose (flutter/flutter#188701) 2026-06-29 [email protected] Free compositor in view renderer finalize to avoid use-after-free (flutter/flutter#188702) 2026-06-29 [email protected] [linux] Use GWeakRef in mock signal handler test helper (flutter/flutter#188700) 2026-06-29 [email protected] Fixing few related editing issues with LTR/RTL text (flutter/flutter#188503) 2026-06-29 [email protected] [Flutter GPU] Add Texture.fromImage to wrap a ui.Image texture (flutter/flutter#188605) 2026-06-29 [email protected] [Flutter GPU] Honor the enable argument in RenderPass.setDepthWriteEnable (flutter/flutter#188715) 2026-06-29 [email protected] Roll Skia from ba1942d8c3e1 to 111e7582d081 (1 revision) (flutter/flutter#188721) 2026-06-29 [email protected] Roll Skia from 587d8befe1ee to ba1942d8c3e1 (6 revisions) (flutter/flutter#188717) 2026-06-29 [email protected] Remove some refs to package:intl (flutter/flutter#188504) 2026-06-29 [email protected] [VPAT] Update a11y assessment app FAB example to announce value change when it's updated. (flutter/flutter#188466) ...
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… (#190550) Impacted Users (Approximately who will hit this issue, ex. all Flutter devs, Windows developers, all end-customers, apps using X framework feature). iOS developers debugging on iOS 17+ devices. Impact Description (What is the impact? ex. visual jank on Samsung phones, app crash, cannot ship an iOS app. Does it impact development? ex. flutter doctor crashes when Android Studio is installed. Or shipping a production app? ex. the app crashes on launch). [flutter/186366](#186366) When debugging an iOS app, if the app crashes, the Flutter CLI will hang. Tests that crash will hang. Workaround (Is there a workaround for this issue?) Manually kill the Flutter CLI Risk (What is the risk level of this cherry-pick?) Low Test Coverage (Are you confident that your fix is well-tested by automated tests?) Yes Validation Steps (What are the steps to validate that this fix works?) Debug an iOS app and force it to crash. Flutter CLI should stop and print stack trace
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…r#188576) (flutter#190550) Impacted Users (Approximately who will hit this issue, ex. all Flutter devs, Windows developers, all end-customers, apps using X framework feature). iOS developers debugging on iOS 17+ devices. Impact Description (What is the impact? ex. visual jank on Samsung phones, app crash, cannot ship an iOS app. Does it impact development? ex. flutter doctor crashes when Android Studio is installed. Or shipping a production app? ex. the app crashes on launch). [flutter/186366](flutter#186366) When debugging an iOS app, if the app crashes, the Flutter CLI will hang. Tests that crash will hang. Workaround (Is there a workaround for this issue?) Manually kill the Flutter CLI Risk (What is the risk level of this cherry-pick?) Low Test Coverage (Are you confident that your fix is well-tested by automated tests?) Yes Validation Steps (What are the steps to validate that this fix works?) Debug an iOS app and force it to crash. Flutter CLI should stop and print stack trace
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This PR automatically detaches LLDB from the process and prints the stack trace if the app process stops.
This prevents the app from hanging on crash.
Fixes #186366.
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