Comments (7)
HidenoriMatsubayashi
commented on July 18, 2024
I'm not cross-compiling
Are you building your flutter app for arm64 targets on arm64 host PC? (= you are doing self-builds on arm64 host?)
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lhoward
commented on July 18, 2024
Yes :)
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HidenoriMatsubayashi
commented on July 18, 2024
https://github.com/sony/flutter-embedded-linux/wiki/Building-Flutter-apps#2-3-cross-build-for-arm64-targets-on-x64-hosts-manually describes how to cross-build for arm64 targets on x64 hosts, so this is not a bug. You need to use proper binary for self-build on your arm64 host if you want to build your apps manually.
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lhoward
commented on July 18, 2024
Essentially I want to build just libapp without the runner as I’m using my own runner. But, it’s also fine if this is not possible as I can run the normal build process and extract the artifact.
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lhoward
commented on July 18, 2024
Script here, it’s not cross-compiling, and it used to work.
https://github.com/PADL/FlutterSwift/blob/main/Examples/counter/build-counter.sh
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HidenoriMatsubayashi
commented on July 18, 2024
I think the log messages from flutter-elinux build elinux --verbose on arm64 host would would be helpful for updating your build script on an arm64 host. Could you try that?
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lhoward
commented on July 18, 2024
Thank you! I updated the build script accordingly (likely not all changes were required, I presume the important ones were just dartaotruntime and correcting the snapshot path).
diff --git a/build-aot.sh b/build-aot.sh
index 412597a..6dd9128 100755
--- a/build-aot.sh
+++ b/build-aot.sh
@@ -12,7 +12,7 @@ export APP_PACKAGE_NAME=inferno_ui
# The build data.
export RESULT_DIR=build/elinux/arm64
-export BUILD_MODE=debug
+export BUILD_MODE=release
mkdir -p .dart_tool/flutter_build/flutter-embedded-linux
mkdir -p ${RESULT_DIR}/${BUILD_MODE}/bundle/lib/
@@ -24,9 +24,9 @@ cp ${FLUTTER_SDK}/bin/cache/artifacts/engine/linux-arm64/icudtl.dat \
${RESULT_DIR}/${BUILD_MODE}/bundle/data/
# Build kernel_snapshot.
-${FLUTTER_SDK}/bin/cache/dart-sdk/bin/dart \
+${FLUTTER_SDK}/bin/cache/dart-sdk/bin/dartaotruntime \
--verbose \
- --disable-dart-dev ${FLUTTER_SDK}/bin/cache/artifacts/engine/linux-arm64/frontend_server.dart.snapshot \
+ --disable-dart-dev ${FLUTTER_SDK}/bin/cache/dart-sdk/bin/snapshots/frontend_server_aot.dart.snapshot \
--sdk-root ${FLUTTER_SDK}/bin/cache/artifacts/engine/common/flutter_patched_sdk_product/ \
--target=flutter \
--no-print-incremental-dependencies \
@@ -34,18 +34,20 @@ ${FLUTTER_SDK}/bin/cache/dart-sdk/bin/dart \
-Ddart.vm.product=true \
--aot \
--tfa \
+ --target-os linux \
--packages .dart_tool/package_config.json \
--output-dill .dart_tool/flutter_build/flutter-embedded-linux/app.dill \
--depfile .dart_tool/flutter_build/flutter-embedded-linux/kernel_snapshot.d \
+ --verbosity=error \
package:${APP_PACKAGE_NAME}/main.dart
# Build AOT image.
${FLUTTER_SDK}/bin/cache/artifacts/engine/linux-arm64/gen_snapshot \
--deterministic \
--snapshot_kind=app-aot-elf \
- --elf=.dart_tool/flutter_build/flutter-embedded-linux/libapp.so \
+ --elf=.dart_tool/flutter_build/flutter-embedded-linux/app.so \
+ --strip \
.dart_tool/flutter_build/flutter-embedded-linux/app.dill
-# --strip
-cp .dart_tool/flutter_build/flutter-embedded-linux/libapp.so ${RESULT_DIR}/${BUILD_MODE}/bundle/lib/
+cp .dart_tool/flutter_build/flutter-embedded-linux/app.so ${RESULT_DIR}/${BUILD_MODE}/bundle/lib/
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