Stop using ReLinker to load libflutter.so on Android 17 (API 37+)#189146
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ReLinker's fallback path copies the native library out of the APK and modifies its file permissions, which is incompatible with the safer dynamic code loading requirements introduced in Android 17 (API 37): libraries loaded via System.load() must be read-only. On API 37+ load libflutter.so with the platform loader (System.loadLibrary) directly, gated on the io.flutter.Build.API_LEVELS.API_37 constant. See flutter#184861
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This pull request updates FlutterJNI to load the Flutter library using the system linker on Android API 37 and above, while continuing to use ReLinker on older versions. It also adds corresponding unit tests. Feedback highlights that modifying Build.VERSION.SDK_INT via reflection in the unit tests can persist across tests in the same Robolectric sandbox, potentially causing test pollution. It is recommended to capture and restore the original SDK version in a finally block.
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autosubmit label was removed for flutter/flutter/189146, because The base commit of the PR is older than 7 days and can not be merged. Please merge the latest changes from the main into this branch and resubmit the PR. |
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autosubmit label was removed for flutter/flutter/189146, because - The status or check suite Windows tool_integration_tests_1_10 has failed. Please fix the issues identified (or deflake) before re-applying this label. |
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flutter/flutter@cab057d...1ac2e82 2026-07-21 [email protected] Add BaseWindowController.isDestroyed flag (flutter/flutter#189061) 2026-07-21 [email protected] Roll Dart SDK from 666e1e2133b7 to 3b2f5ad7718d (1 revision) (flutter/flutter#189745) 2026-07-21 [email protected] Roll Skia from 3c52d80c960d to 569534e9fa59 (5 revisions) (flutter/flutter#189766) 2026-07-21 [email protected] Roll Skia from 11426cf7aaa1 to 3c52d80c960d (2 revisions) (flutter/flutter#189758) 2026-07-21 [email protected] Roll pub packages (flutter/flutter#189760) 2026-07-21 [email protected] [iOS] Inject DisplayLinkManager into FlutterKeyboardInsetManager (flutter/flutter#189751) 2026-07-21 [email protected] Treat package:stack_trace async-gap marker as asynchronous suspension (flutter/flutter#185791) 2026-07-21 [email protected] [iOS] Inject DisplayLinkManager into VsyncWaiterIOS (flutter/flutter#189749) 2026-07-20 [email protected] Use String builder in `InputConnectionAdaptorTest.java` (flutter/flutter#189281) 2026-07-20 [email protected] Fix non-independant tests in draggable_test.dart (flutter/flutter#186898) 2026-07-20 [email protected] Stop using ReLinker to load libflutter.so on Android 17 (API 37+) (flutter/flutter#189146) 2026-07-20 [email protected] [et] Refactor gn post-processing, fix minor clang[++] regex match bug (flutter/flutter#189685) 2026-07-20 [email protected] Take plugin_test_darwin out of bringup (flutter/flutter#189594) 2026-07-20 [email protected] Roll pub packages (flutter/flutter#189596) 2026-07-20 [email protected] widgets layer re-export ScrollCacheExtent (flutter/flutter#189483) 2026-07-20 [email protected] Roll Skia from 47143b6fa402 to 11426cf7aaa1 (7 revisions) (flutter/flutter#189740) 2026-07-20 [email protected] Sync CHANGELOG.md from stable (flutter/flutter#189735) 2026-07-20 [email protected] [Impeller] In the AHBTextureSourceVK destructor, do not call Vulkan APIs if the VkDevice has been destroyed (flutter/flutter#189666) 2026-07-20 [email protected] Add AutofillHints.emailOTPCode for Android AUTOFILL_HINT_EMAIL_OTP (flutter/flutter#188123) 2026-07-20 [email protected] Add a github workflow to remove flutteractionsbot branches after the PRs are merged or closed. (flutter/flutter#189668) 2026-07-20 [email protected] Roll ANGLE to cc08479fbcc1 (flutter/flutter#189595) 2026-07-20 [email protected] Roll Fuchsia Linux SDK from NL8xtzr8cxr5E8r8E... to GswhlPRO-D1qSNclx... (flutter/flutter#189715) 2026-07-20 [email protected] Roll Skia from ba90f98535de to 47143b6fa402 (4 revisions) (flutter/flutter#189721) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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ReLinker's fallback sets the extracted library owner-writable (
setWritable(true)) and thenSystem.loadsit, which Android 17 Safer DCL rejects. Because of this ReLinker is incompatible with the safer dynamic code loading requirements introduced in Android 17 (API 37): libraries loaded viaSystem.load()must be read-only. On API 37+ load libflutter.so with the platform loader (System.loadLibrary) directly, gated on the io.flutter.Build.API_LEVELS.API_37 constant.