Fix memory corruption issue #1

xiaowei-guan · 2020-11-25T12:29:15Z

Tizen shell should request vsync until flutter engine creation is
completed.
Create flutter engine sequence:
Step 1: Launch the shell.
Step 2: Tell the platfrom view to initialize itself.
Step 3: Launch the root isolate.
In step 2, Flutter engine will request vsync, sometimes Tizen shell
receive vsync callback, but steps 3 not completed.So Tizen shell should
request vsync until flutter engine creation is completed.

Co-authored-by: Swift Kim <[email protected]> Co-authored-by: Xiaowei Guan <[email protected]> Co-authored-by: Wanchao Xu <[email protected]> Co-authored-by: Boram Bae <[email protected]> Co-authored-by: MuHong Byun <[email protected]> Co-authored-by: Seungsoo Lee <[email protected]>

Tizen shell should request vsync until flutter engine creation is completed. Create flutter engine sequence: Step 1: Launch the shell. Step 2: Tell the platfrom view to initialize itself. Step 3: Launch the root isolate. In step 2, Flutter engine will request vsync, sometimes Tizen shell receive vsync callback, but steps 3 not completed.So Tizen shell should request vsync until flutter engine creation is completed.

Rebased #1. Co-authored-by: xiaowei guan <[email protected]>

…tter#26117) This appears to have triggered reproducible failures in channels_integration_test_ios: [ +4 ms] 00:01 [32m+0[0m: channel suite step through[0m [+3744 ms] Unsupported value: Sun Mar 11 07:16:42 2018 of type __NSTaggedDate [ ] *** Assertion failure in void WriteValue(CFMutableDataRef, id)(), FlutterStandardCodec.mm:340 [ +2 ms] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Unsupported value for standard codec.' [ ] *** First throw call stack: [ ] (0x19d5bd9d8 0x1b1940b54 0x19d4cc50c 0x19e815238 0x1050031ec 0x104823f80 0x105003aac 0x1050009bc 0x104824e9c 0x105000b4c 0x104d0cc98 0x10501b398 0x104fb3c94 0x104fb72c4 0x19d53e3e0 0x19d53dfe4 0x19d53d4c4 0x19d537850 0x19d536ba0 0x1b429c598 0x19fe282f4 0x19fe2d874 0x1048257fc 0x19d215568) [ ] libc++abi.dylib: terminating with uncaught exception of type NSException [ +65 ms] Process 541 stopped [ ] * thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT [ ] frame #0: 0x00000001c93e584c libsystem_kernel.dylib`__pthread_kill + 8 [ ] libsystem_kernel.dylib`__pthread_kill: [ ] -> 0x1c93e584c <+8>: b.lo 0x1c93e5868 ; <+36> [ ] 0x1c93e5850 <+12>: stp x29, x30, [sp, #-0x10]! [ ] 0x1c93e5854 <+16>: mov x29, sp [ ] 0x1c93e5858 <+20>: bl 0x1c93c2f5c ; cerror_nocancel [ ] Target 0: (Runner) stopped. Example builds: * https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_ios%20channels_integration_test_ios/828/overview * https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_ios%20channels_integration_test_ios/829/overview * https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_ios%20channels_integration_test_ios/830/overview * https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_ios%20channels_integration_test_ios/831/overview Example Log: * https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket.appspot.com/8847377106855056784/+/u/run_channels_integration_test_ios/stdout This reverts commit 99021da.

…visions) (flutter#43457)" (flutter#43466) This reverts commit a109e0b as it breaks flutter framework tests during subsequent roll. From flutter/flutter#130138: _TypeError: (#0 _ProgramInfoBuilder.createInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:450:53)) ``` #0 _ProgramInfoBuilder.createInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:450:53) #1 _ProgramInfoBuilder.getInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:374:14) #2 _ProgramInfoBuilder.createInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:444:23) #3 _ProgramInfoBuilder.getInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:374:14) #4 _ProgramInfoBuilder.createInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:419:54) #5 _ProgramInfoBuilder.getInfoNodeFor (package:vm_snapshot_analysis/v8_profile.dart:374:14) #6 ListIterable.forEach (dart:_internal/iterable.dart:39:13) #7 _ProgramInfoBuilder.build (package:vm_snapshot_analysis/v8_profile.dart:338:16) #8 toProgramInfo (package:vm_snapshot_analysis/v8_profile.dart:282:8) #9 _treemapFromSnapshot (package:vm_snapshot_analysis/treemap.dart:158:27) #10 treemapFromJson (package:vm_snapshot_analysis/treemap.dart:85:5) #11 SizeAnalyzer.analyzeZipSizeAndAotSnapshot (package:flutter_tools/src/base/analyze_size.dart:123:59) #12 AndroidGradleBuilder._performCodeSizeAnalysis (package:flutter_tools/src/android/gradle.dart:623:60) #13 AndroidGradleBuilder.buildGradleApp (package:flutter_tools/src/android/gradle.dart:604:15) <asynchronous suspension> #14 AndroidGradleBuilder.buildApk (package:flutter_tools/src/android/gradle.dart:242:5) <asynchronous suspension> #15 BuildApkCommand.runCommand (package:flutter_tools/src/commands/build_apk.dart:116:5) <asynchronous suspension> #16 FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1297:27) <asynchronous suspension> #17 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19) <asynchronous suspension> #18 CommandRunner.runCommand (package:args/command_runner.dart:212:13) <asynchronous suspension> ```

The culprit test asks different threads to access some stack variables, but the stack might return earlier than the threads' completion. This PR fixes it by adding latches. This test, despite being possibly fine for now, consistently triggers the following asan error when I make some unrelated trivial changes. The thrown error: <details> <pre> [==========] Running 1 test from 1 test suite. [----------] Global test environment set-up. [----------] 1 test from EmbedderTest [ RUN ] EmbedderTest.EmbedderThreadHostUseCustomThreadConfig ================================================================= ==14398==ERROR: AddressSanitizer: stack-use-after-scope on address 0x00031833b530 at pc 0x00013248d543 bp 0x000318740390 sp 0x00031873fb58 WRITE of size 4 at 0x00031833b530 thread T2 #0 0x13248d542 in pthread_getschedparam+0x3d2 (libclang_rt.asan_osx_dynamic.dylib:x86_64+0x2c542) flutter-tizen#1 0x100577671 in flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0::operator()() const+0x1a1 (embedder_unittests:x86_64+0x10030b671) flutter-tizen#2 0x1005774a2 in decltype(std::declval<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0&>()()) std::_fl::__invoke[abi:v15000]<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0&>(flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0&)+0x22 (embedder_unittests:x86_64+0x10030b4a2) flutter-tizen#3 0x100577402 in void std::_fl::__invoke_void_return_wrapper<void, true>::__call<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0&>(flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0&)+0x22 (embedder_unittests:x86_64+0x10030b402) flutter-tizen#4 0x1005773ba in std::_fl::__function::__alloc_func<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0, std::_fl::allocator<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0>, void ()>::operator()[abi:v15000]()+0x2a (embedder_unittests:x86_64+0x10030b3ba) flutter-tizen#5 0x1005734f6 in std::_fl::__function::__func<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0, std::_fl::allocator<flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()::$_0>, void ()>::operator()()+0x26 (embedder_unittests:x86_64+0x1003074f6) flutter-tizen#6 0x10066a525 in std::_fl::__function::__value_func<void ()>::operator()[abi:v15000]() const+0x105 (embedder_unittests:x86_64+0x1003fe525) flutter-tizen#7 0x10066a3f2 in std::_fl::function<void ()>::operator()() const+0x22 (embedder_unittests:x86_64+0x1003fe3f2) flutter-tizen#8 0x100c229dc in fml::MessageLoopImpl::FlushTasks(fml::FlushType)+0x37c (embedder_unittests:x86_64+0x1009b69dc) flutter-tizen#9 0x100c22577 in fml::MessageLoopImpl::RunExpiredTasksNow()+0x27 (embedder_unittests:x86_64+0x1009b6577) flutter-tizen#10 0x100c8aa2f in fml::MessageLoopDarwin::OnTimerFire(__CFRunLoopTimer*, fml::MessageLoopDarwin*)+0x2f (embedder_unittests:x86_64+0x100a1ea2f) flutter-tizen#11 0x7ff817b54508 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__+0x13 (CoreFoundation:x86_64+0x97508) flutter-tizen#12 0x7ff817b540b8 in __CFRunLoopDoTimer+0x310 (CoreFoundation:x86_64+0x970b8) flutter-tizen#13 0x7ff817b53ce9 in __CFRunLoopDoTimers+0x11c (CoreFoundation:x86_64+0x96ce9) flutter-tizen#14 0x7ff817b380ac in __CFRunLoopRun+0x83b (CoreFoundation:x86_64+0x7b0ac) flutter-tizen#15 0x7ff817b372a8 in CFRunLoopRunSpecific+0x22c (CoreFoundation:x86_64+0x7a2a8) flutter-tizen#16 0x100c8b155 in fml::MessageLoopDarwin::Run()+0x305 (embedder_unittests:x86_64+0x100a1f155) flutter-tizen#17 0x100c223d0 in fml::MessageLoopImpl::DoRun()+0x150 (embedder_unittests:x86_64+0x1009b63d0) flutter-tizen#18 0x100c1f1fa in fml::MessageLoop::Run()+0x2a (embedder_unittests:x86_64+0x1009b31fa) flutter-tizen#19 0x100c7baa4 in fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0::operator()() const+0x194 (embedder_unittests:x86_64+0x100a0faa4) flutter-tizen#20 0x100c7b8e2 in decltype(std::declval<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0&>()()) std::_fl::__invoke[abi:v15000]<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0&>(fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0&)+0x22 (embedder_unittests:x86_64+0x100a0f8e2) flutter-tizen#21 0x100c7b842 in void std::_fl::__invoke_void_return_wrapper<void, true>::__call<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0&>(fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0&)+0x22 (embedder_unittests:x86_64+0x100a0f842) flutter-tizen#22 0x100c7b7fa in std::_fl::__function::__alloc_func<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0, std::_fl::allocator<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0>, void ()>::operator()[abi:v15000]()+0x2a (embedder_unittests:x86_64+0x100a0f7fa) flutter-tizen#23 0x100c77ad6 in std::_fl::__function::__func<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0, std::_fl::allocator<fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0>, void ()>::operator()()+0x26 (embedder_unittests:x86_64+0x100a0bad6) flutter-tizen#24 0x10066a525 in std::_fl::__function::__value_func<void ()>::operator()[abi:v15000]() const+0x105 (embedder_unittests:x86_64+0x1003fe525) flutter-tizen#25 0x10066a3f2 in std::_fl::function<void ()>::operator()() const+0x22 (embedder_unittests:x86_64+0x1003fe3f2) flutter-tizen#26 0x100c75388 in fml::ThreadHandle::ThreadHandle(std::_fl::function<void ()>&&)::$_0::operator()(void*) const+0xe8 (embedder_unittests:x86_64+0x100a09388) flutter-tizen#27 0x100c75227 in fml::ThreadHandle::ThreadHandle(std::_fl::function<void ()>&&)::$_0::__invoke(void*)+0xc7 (embedder_unittests:x86_64+0x100a09227) flutter-tizen#28 0x1324b3e76 in asan_thread_start(void*)+0x46 (libclang_rt.asan_osx_dynamic.dylib:x86_64+0x52e76) flutter-tizen#29 0x7ff817a5c18a in _pthread_start+0x62 (libsystem_pthread.dylib:x86_64+0x618a) flutter-tizen#30 0x7ff817a57ae2 in thread_start+0xe (libsystem_pthread.dylib:x86_64+0x1ae2) Address 0x00031833b530 is located in stack of thread T0 at offset 144 in frame #0 0x1002d051f in flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()+0xf (embedder_unittests:x86_64+0x10006451f) This frame has 12 object(s): [32, 40) 'thread_host' (line 3445) [64, 112) 'ref.tmp' (line 3446) [144, 148) 'ui_policy' (line 3449) <== Memory access at offset 144 is inside this variable [160, 168) 'ui_param' (line 3450) [192, 200) 'ref.tmp2' (line 3452) [224, 272) 'ref.tmp5' (line 3452) [304, 320) 'agg.tmp' [336, 340) 'io_policy' (line 3458) [352, 360) 'io_param' (line 3459) [384, 392) 'ref.tmp6' (line 3460) [416, 464) 'ref.tmp10' (line 3460) [496, 512) 'agg.tmp11' HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork (longjmp and C++ exceptions *are* supported) SUMMARY: AddressSanitizer: stack-use-after-scope (libclang_rt.asan_osx_dynamic.dylib:x86_64+0x2c542) in pthread_getschedparam+0x3d2 Shadow bytes around the buggy address: 0x00031833b280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00031833b300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00031833b380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00031833b400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00031833b480: 00 00 00 00 f1 f1 f1 f1 00 f2 f2 f2 f8 f8 f8 f8 =>0x00031833b500: f8 f8 f2 f2 f2 f2[f8]f2 f8 f2 f2 f2 f8 f2 f2 f2 0x00031833b580: f8 f8 f8 f8 f8 f8 f2 f2 f2 f2 00 00 f2 f2 f8 f2 0x00031833b600: f8 f2 f2 f2 f8 f2 f2 f2 f8 f8 f8 f8 f8 f8 f2 f2 0x00031833b680: f2 f2 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 0x00031833b700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00031833b780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Thread T2 created by T0 here: #0 0x1324ae92d in pthread_create+0x5d (libclang_rt.asan_osx_dynamic.dylib:x86_64+0x4d92d) flutter-tizen#1 0x100c73901 in fml::ThreadHandle::ThreadHandle(std::_fl::function<void ()>&&)+0x401 (embedder_unittests:x86_64+0x100a07901) flutter-tizen#2 0x100c73cca in fml::ThreadHandle::ThreadHandle(std::_fl::function<void ()>&&)+0x2a (embedder_unittests:x86_64+0x100a07cca) flutter-tizen#3 0x100c748c9 in std::_fl::__unique_if<fml::ThreadHandle>::__unique_single std::_fl::make_unique[abi:v15000]<fml::ThreadHandle, fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0>(fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)::$_0&&)+0x149 (embedder_unittests:x86_64+0x100a088c9) flutter-tizen#4 0x100c74335 in fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)+0x255 (embedder_unittests:x86_64+0x100a08335) flutter-tizen#5 0x100c746b2 in fml::Thread::Thread(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig const&)+0x32 (embedder_unittests:x86_64+0x100a086b2) flutter-tizen#6 0x106ee0b1a in std::_fl::__unique_if<fml::Thread>::__unique_single std::_fl::make_unique[abi:v15000]<fml::Thread, std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig&>(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&, fml::Thread::ThreadConfig&)+0x4a (embedder_unittests:x86_64+0x106c74b1a) flutter-tizen#7 0x106ee08e8 in flutter::ThreadHost::CreateThread(flutter::ThreadHost::Type, std::_fl::optional<fml::Thread::ThreadConfig>, flutter::ThreadHost::ThreadHostConfig const&) const+0x1b8 (embedder_unittests:x86_64+0x106c748e8) flutter-tizen#8 0x106ee1466 in flutter::ThreadHost::ThreadHost(flutter::ThreadHost::ThreadHostConfig const&)+0x2f6 (embedder_unittests:x86_64+0x106c75466) flutter-tizen#9 0x106ee19ca in flutter::ThreadHost::ThreadHost(flutter::ThreadHost::ThreadHostConfig const&)+0x2a (embedder_unittests:x86_64+0x106c759ca) flutter-tizen#10 0x100b6f730 in flutter::EmbedderThreadHost::CreateEngineManagedThreadHost(std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&)+0x3a0 (embedder_unittests:x86_64+0x100903730) flutter-tizen#11 0x100b6e51c in flutter::EmbedderThreadHost::CreateEmbedderOrEngineManagedThreadHost(FlutterCustomTaskRunners const*, std::_fl::function<void (fml::Thread::ThreadConfig const&)> const&)+0xcc (embedder_unittests:x86_64+0x10090251c) flutter-tizen#12 0x1002d0748 in flutter::testing::EmbedderTest_EmbedderThreadHostUseCustomThreadConfig_Test::TestBody()+0x238 (embedder_unittests:x86_64+0x100064748) flutter-tizen#13 0x1089ce93b in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)+0x21b (embedder_unittests:x86_64+0x10876293b) flutter-tizen#14 0x108955bdf in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)+0x2cf (embedder_unittests:x86_64+0x1086e9bdf) flutter-tizen#15 0x108955755 in testing::Test::Run()+0x3a5 (embedder_unittests:x86_64+0x1086e9755) flutter-tizen#16 0x108957b23 in testing::TestInfo::Run()+0x593 (embedder_unittests:x86_64+0x1086ebb23) flutter-tizen#17 0x10895a8f2 in testing::TestSuite::Run()+0x6e2 (embedder_unittests:x86_64+0x1086ee8f2) flutter-tizen#18 0x108977d7a in testing::internal::UnitTestImpl::RunAllTests()+0xb9a (embedder_unittests:x86_64+0x10870bd7a) flutter-tizen#19 0x1089ee88b in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)+0x21b (embedder_unittests:x86_64+0x10878288b) flutter-tizen#20 0x1089770ac in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)+0x2cc (embedder_unittests:x86_64+0x10870b0ac) flutter-tizen#21 0x108976c3b in testing::UnitTest::Run()+0x28b (embedder_unittests:x86_64+0x10870ac3b) flutter-tizen#22 0x1083e45e2 in RUN_ALL_TESTS()+0x22 (embedder_unittests:x86_64+0x1081785e2) flutter-tizen#23 0x1083e43c8 in main+0x6e8 (embedder_unittests:x86_64+0x1081783c8) flutter-tizen#24 0x213ff0365 (<unknown module>) ==14398==ABORTING [1] 14398 abort ../out/host_debug_unopt/embedder_unittests </pre> </details> The changes I made (isolated from a larger change, therefore it doesn't seem reasonable by itself): ```diff // shell/common/platform_view.cc, L33 void PlatformView::DispatchPointerDataPacket( std::unique_ptr<PointerDataPacket> packet) { - delegate_.OnPlatformViewDispatchPointerDataPacket( - pointer_data_packet_converter_.Convert(std::move(packet))); + delegate_.OnPlatformViewDispatchPointerDataPacket(std::move(packet)); } ``` Base engine rev: de2a73c Environment: Macbook with M1 Max Chip, OS 14.4.1 Compiling with: ``` ./engine/src/flutter/tools/gn --goma --unoptimized --asan --xcode-symlinks ./depot_tools/ninja -j200 -C ./engine/src/out/host_debug_unopt ./out/host_debug_unopt/embedder_unittests ``` [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

swift-kim approved these changes Nov 25, 2020

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swift-kim force-pushed the flutter-1.22-candidate.12-tizen branch from a60595f to 4437aa5 Compare November 26, 2020 04:30

swift-kim closed this Nov 26, 2020

swift-kim mentioned this pull request Nov 26, 2020

Fix memory corruption issue #2

Merged

swift-kim added a commit that referenced this pull request Nov 26, 2020

Fix memory corruption issue (#2)

8e09988

Rebased #1. Co-authored-by: xiaowei guan <[email protected]>

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Fix memory corruption issue #1

Fix memory corruption issue #1

xiaowei-guan commented Nov 25, 2020

Fix memory corruption issue #1

Fix memory corruption issue #1

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xiaowei-guan commented Nov 25, 2020