Fix Android CI (armv7 cross-compile + emulator stability)#10
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The Swift Android SDK names its armv7 target triples armv7-unknown-linux-android<api> (not androideabi), so build against armv7-unknown-linux-android28 directly. Also free disk space before the emulator job, which was getting OOM-killed (adb exit 137) right after boot.
A bare swift:6.3.3 container can't cross-compile for Android: the SDK bundle's ndk-sysroot (semaphore.h, libc, etc.) comes from the Android NDK, which the container lacks. Run the armv7 build through skiptools/swift-android-action, which installs the NDK and wires ANDROID_NDK_HOME, retargeting the compile to armv7 via swift-build-flags. Tests are disabled so no emulator is launched.
The GitHub-hosted x86_64 emulator was dying with SIGKILL (exit 137) right after reporting boot, failing the unit-test job non-deterministically. Force a cold boot with software rendering and a longer boot timeout so the emulator starts deterministically instead of restoring a crash-prone snapshot.
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Follow-up to #8, which was merged before the Android jobs were fully green.
These three commits fix the two Android CI jobs. Net change is limited to
.github/workflows/swift-android.yml.Changes
ndk-sysroot(its libc/headers come from the Android NDK). A bareswift:6.3.3container therefore can't cross-compile ('semaphore.h' file not found). The armv7 build now runs throughskiptools/swift-android-action,which provisions the NDK and wires
ANDROID_NDK_HOME, retargeting the compileto
armv7-unknown-linux-android28viaswift-build-flags. Tests are disabledfor this job so no emulator is launched.
with exit 137 (SIGKILL) right after boot, failing the unit-test job
non-deterministically. Force a cold boot (
-no-snapshot) with softwarerendering (
-gpu swiftshader_indirect) and a longer boot timeout, plusfree-disk-space: truefor headroom.Verification
Android (armv7 cross-compile)— passing.Android (unit tests)— the emulator-hardening change is validated by thisPR's own CI run.