SIGSEGV: @dart/runtime/vm/dart_entry.cc:181 while cross-compiling engine in AOT mode for ARMv7 32-bit architecture #74322
Description
I'm trying to cross-compile flutter-egine in AOT mode to ARMv7 32-bit architecture.
I'm using the version of the engine referenced by today's (2020-01-20) flutter master channel:
$ ./flutter --version
Flutter 1.26.0-2.0.pre.420 • channel master • https://github.com/flutter/flutter
Framework • revision b362d6f480 (4 hours ago) • 2021-01-20 18:47:51 +0800
Engine • revision b58dbc88fc
Tools • Dart 2.12.0 (build 2.12.0-240.0.dev)
Source reference: flutter/engine@b58dbc8
The compilation fails as follows:
Command failed: ./clang_x64/dart --deterministic --packages=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/flutter/flutter_frontend_server/.dart_tool/package_config.json --snapshot=gen/frontend_server.dart.snapshot --snapshot-depfile=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/gen/frontend_server.dart.snapshot.d --snapshot-kind=kernel --dfe=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/third_party/dart/pkg/vm/bin/kernel_service.dart /data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/gen/flutter/flutter_frontend_server/frontend_server.dart.dill
===== CRASH =====
si_signo=Segmentation fault(11), si_code=1, si_addr=0x7fa52b75ceac
Aborted
When I run unstripped version on gdb I got the following callstack:
$ gdb --args ./clang_x64/exe.unstripped/dart --deterministic --packages=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-n
eon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/flutter/flutter_frontend_server/.dart_tool/package_config.json --snapshot=gen/frontend_server.dart.snapshot --snapshot-depfile=/data/dwrobel1/onemw/onemw/oe-builds/
7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/gen/frontend_server.dart.snapshot.d --snapshot-kind=kernel --dfe=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/third_party/dart/pkg/vm/bin/kernel_service.dart /data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/gen/flutter/flutter_frontend_server/frontend_server.dart.dill
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Reading symbols from ./clang_x64/exe.unstripped/dart...done.
(gdb) r
Starting program: /data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/clang_x64/exe.unstripped/dart --deterministic --packages=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/flutter/flutter_frontend_server/.dart_tool/package_config.json --snapshot=gen/frontend_server.dart.snapshot --snapshot-depfile=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/gen/frontend_server.dart.snapshot.d --snapshot-kind=kernel --dfe=/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/third_party/dart/pkg/vm/bin/kernel_service.dart /data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/engine/src/out/linux_release_arm/gen/flutter/flutter_frontend_server/frontend_server.dart.dill
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7ffff7fe4700 (LWP 11399)]
Thread 1 "dart" received signal SIGSEGV, Segmentation fault.
0x00007fffd8edceac in ?? ()
(gdb) bt
#0 0x00007fffd8edceac in ?? ()
#1 0x0000555555835088 in dart::DartEntry::InvokeCode (code=..., arguments_descriptor=..., arguments=..., thread=thread@entry=0x5555572731f0) at ../../third_party/dart/runtime/vm/dart_entry.cc:181
#2 0x0000555555834e92 in dart::DartEntry::InvokeFunction (function=..., arguments=..., arguments_descriptor=..., current_sp=<optimized out>) at ../../third_party/dart/runtime/vm/dart_entry.cc:147
#3 0x0000555555897e0b in dart::Library::Invoke (this=<optimized out>, function_name=..., args=..., arg_names=..., respect_reflectable=false, check_is_entrypoint=false) at ../../third_party/dart/runtime/vm/object.cc:13011
#4 0x0000555555b12f08 in Dart_Invoke (target=<optimized out>, name=<optimized out>, number_of_arguments=<optimized out>, arguments=<optimized out>) at ../../third_party/dart/runtime/vm/dart_api_impl.cc:4687
#5 0x00005555557c1e86 in dart::bin::DartUtils::PrepareBuiltinLibrary (builtin_lib=builtin_lib@entry=0x555557273d90, internal_lib=internal_lib@entry=0x555557273d80, is_service_isolate=false, trace_loading=false)
at ../../third_party/dart/runtime/bin/dartutils.cc:470
#6 0x00005555557c224d in dart::bin::DartUtils::PrepareForScriptLoading (is_service_isolate=false, trace_loading=false) at ../../third_party/dart/runtime/bin/dartutils.cc:585
#7 0x0000555555698601 in dart::bin::SetupCoreLibraries (isolate=0x5555572638e0, isolate_data=<optimized out>, is_isolate_group_start=true, resolved_packages_config=0x7fffffff9528) at ../../third_party/dart/runtime/bin/main.cc:165
#8 0x000055555569800c in dart::bin::IsolateSetupHelper (isolate=0x5555572638e0, is_main_isolate=true,
script_uri=0x55555724eb00 "/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/eng"...,
packages_config=<optimized out>, isolate_run_app_snapshot=false, flags=<optimized out>, error=0x7fffffff9678, exit_code=0x7fffffff9674) at ../../third_party/dart/runtime/bin/main.cc:277
#9 0x0000555555696a77 in dart::bin::CreateIsolateGroupAndSetupHelper (is_main_isolate=<optimized out>, script_uri=<optimized out>, name=<optimized out>,
packages_config=0x7fffffffa1ce "/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/eng"..., flags=<optimized out>, callback_data=<optimized out>, error=<optimized out>, exit_code=<optimized out>) at ../../third_party/dart/runtime/bin/main.cc:803
#10 0x000055555569606d in dart::bin::RunMainIsolate (
script_name=0x55555724eb00 "/data/dwrobel1/onemw/onemw/oe-builds/7218c-onemw-full-zb-k-2.2-flutter-gdb/onemw/build-brcm972180hbc-refboard/tmp/work/cortexa15t2hf-neon-vfpv4-rdk-linux-gnueabi/flutter-engine/2.12.0-240.0.dev-r0/eng"..., package_config_override=0x0, dart_options=0x7fffffff9710) at ../../third_party/dart/runtime/bin/main.cc:958
#11 0x00005555556973d6 in dart::bin::main (argc=8, argv=0x7fffffff98d8) at ../../third_party/dart/runtime/bin/main.cc:1362
#12 0x0000555555697f66 in main (argc=1462191424, argv=0x555557274440) at ../../third_party/dart/runtime/bin/main.cc:1400
(gdb)
Additional information:
- Options used for gn:
./src/flutter/tools/gn --no-build-glfw-shell --runtime-mode=release --lto --target-os=linux --linux-cpu="arm" --target-triple="arm-rdk-linux-gnueabi" --enable-fontconfig --embedder-for-target - The same version of the engine compiles fine natively on x86_64 platform - the only problem is during the cross compilation for ARMv7.
- I first encounter this issue on the sources from 2020-12-10 flutter/engine@4797b06
- The last working version I have for ARMv7 is from 2020-08-16 flutter/engine@e16bc50