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Build macOS desktop gen_snapshot_arm64 and gen_snapshot_x64 as arm64 binary to run natively on Apple Silicon #101138
Description
On an arm64 Apple Silicon Mac, the published gen_snapshot_* binaries are x86_64 and therefore run with Rosetta translation.
./darwin-x64-profile/gen_snapshot_arm64: Mach-O 64-bit executable x86_64
./darwin-x64-profile/gen_snapshot_x64: Mach-O 64-bit executable x86_64
./darwin-x64-profile/gen_snapshot: Mach-O 64-bit executable x86_64
./darwin-x64/gen_snapshot_arm64: Mach-O 64-bit executable x86_64
./darwin-x64/gen_snapshot_x64: Mach-O 64-bit executable x86_64
./darwin-x64/gen_snapshot: Mach-O 64-bit executable x86_64
./darwin-x64-release/gen_snapshot_arm64: Mach-O 64-bit executable x86_64
./darwin-x64-release/gen_snapshot_x64: Mach-O 64-bit executable x86_64
./darwin-x64-release/gen_snapshot: Mach-O 64-bit executable x86_64
Dart does not currently support targeting x64 from a non-x64 host dart-lang/sdk#49768. However gen_snapshot_arm64 can be compiled as arm64 and therefore run natively on an arm64 Mac. gen_snapshot_x64 can also be compiled as a universal binary for AOT (but not JIT) builds, which is all we need for macOS targets.
Compile macOS gen_snapshot_arm64 as arm64, and publish in the arm64 Flutter install (flutter_macos_arm64_*.zip), as well as the macOS desktop artifacts that get curled when upgrading on an arm64 Mac.
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jmagman commentedon May 14, 2022
/cc @zanderso and @cbracken
jmagman commentedon Aug 24, 2022
@cbracken I know you're working on gen_snapshot refactoring, will that result in gen_snapshot always running natively on arm, even for creating x64 binaries per dart-lang/sdk@4f7bb16? Would like to stop requiring Rosetta for our developers, plus I'm getting pushback to installing Rosetta on our luci bots https://bugs.chromium.org/p/chromium/issues/detail?id=1354817#c11
cbracken commentedon Aug 25, 2022
Yes this is part of #103386.
Adds documentation for core snapshot targets (#36434)
[macOS] Deduplicate gen_snapshot creation targets (#36455)
[macOS] Clean up gen_snapshot copy invocation (#36461)
Adds documentation for core snapshot targets (flutter-team-archive#36434
[macOS] Deduplicate gen_snapshot creation targets (flutter-team-archi…
[macOS] Clean up gen_snapshot copy invocation (flutter-team-archive#3…
28 remaining items
[tools] Make SnapshotType.platform non-nullable (#146958)
[tools] Make SnapshotType.platform non-nullable (flutter#146958)
[macOS] Generate universal gen_snapshots (#52885)
Reverts "[macOS] Generate universal gen_snapshots (#52885)" (#52913)
jmagman commentedon May 18, 2024
The fix was reverted, reopening flutter-team-archive/engine#52913
[macOS] Generate universal gen_snapshots (#53524)
jmagman commentedon Jun 24, 2024
Fixed by flutter-team-archive/engine#53524
github-actions commentedon Jul 9, 2024
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.[-]Build macOS desktop `gen_snapshot_arm64` as arm64 binary to run natively on Apple Silicon[/-][+]Build macOS desktop `gen_snapshot_arm64` and `gen_snapshot_x64` as arm64 binary to run natively on Apple Silicon[/+]