How to create geckoview FAT AAR?

Developer Tools
1

How to create FAT AAR with multiple architectures?
AAR and POM files are included (released build). Firefox 131 source.

root@9e6bfae6b70f:/firefox/mozilla-unified# ./mach configure --disable-compile-environment --enable-application=mobile/android
root@9e6bfae6b70f:/firefox/mozilla-unified# ./mach build android-fat-aar-artifact -v
os.nice(19)
0:00.45 W Clobber not needed.
Parallelism determined by memory: using 15 jobs for 16 cores based on 15.0 GiB RAM and estimated job size of 1.0 GiB
0:00.51 /usr/bin/gmake -j15 android-fat-aar-artifact
0:00.52 /usr/bin/gmake recurse_android-fat-aar-artifact
0:00.53 gmake[1]: Entering directory ‘/firefox/mozilla-unified/obj-x86_64-pc-linux-gnu’
0:00.54 /root/.mozbuild/srcdirs/mozilla-unified-6cd42f69fc1c/_virtualenvs/build/bin/python -m mozbuild.action.fat_aar --armeabi-v7a /firefox/libtarget/armeabi.aar --arm64-v8a /firefox/libtarget/arm64-v8a.aar --distdir /firefox/mozilla-unified/obj-x86_64-pc-linux-gnu/dist/fat-aar
0:02.86 Allowed: Path “chrome/toolkit/content/global/buildconfig.html” has architecture-specific versions:
0:02.86 arm64-v8a -> 1e389d539f32975d95a0c446c805a6297bfc5a4f
0:02.86 armeabi-v7a -> d698760ad2c4c1f3ed8c3fbfb00dffdba4038607
0:02.86 Allowed: Path “classes.jar!/org/mozilla/geckoview/BuildConfig.class” has architecture-specific versions:
0:02.86 arm64-v8a -> 1b5708390d8ebbbc6ed1941f58a43addcc67d5f8
0:02.86 armeabi-v7a -> 1414edc9b46869fe73ebf4607ea9c25fc0f06ce2
0:02.86 Disallowed: Path “classes.jar!/org/mozilla/geckoview/CrashHandler$1.class” has architecture-specific versions:
0:02.86 arm64-v8a -> ca1989bb7ec70146267ee221294c3711b43b88a8
0:02.86 armeabi-v7a -> aaa115ed98601b61531b8b4c200a3283345d2fce
0:02.86 Disallowed: Path “modules/AppConstants.sys.mjs” has architecture-specific versions:
0:02.86 arm64-v8a -> 7799bc26fa4723e8ec733eeda2486f9f1483f480
0:02.87 armeabi-v7a -> fde8573a104189c8d39cf189a4460488361e7906
0:02.92 gmake[1]: *** [Makefile:139: recurse_android-fat-aar-artifact] Error 1
0:02.92 gmake[1]: Leaving directory ‘/firefox/mozilla-unified/obj-x86_64-pc-linux-gnu’
0:02.92 gmake: *** [/firefox/mozilla-unified/config/recurse.mk:34: android-fat-aar-artifact] Error 2
0:03.12 W 0 compiler warnings present.
Hey! Builds initiated with mach build $A_SPECIFIC_TARGET may not always work, even if the code being built is correct. Consider doing a bare mach build instead.
root@9e6bfae6b70f:/firefox/mozilla-unified#

2

I’m having exactly the same output. Were you able to get it running? @devel2ew

Edit: Found the solution! 1759727 - Add documentation for how to produce Android GeckoView universal (fat) AAR s locally

3

Previously, the aar files for 64-bit and v7a have been generated and copied to /firefoxnew/libs.

mozconfig

export MOZILLA_OFFICIAL=1
mk_add_options AUTOCLOBBER=1
ac_add_options --disable-compile-environment
ac_add_options --enable-project=mobile/android
ac_add_options --enable-official-branding
ac_add_options --with-branding=browser/branding/official
ac_add_options --with-branding=mobile/android/branding/official
ac_add_options --enable-release
mk_add_options AUTOCLOBBER=1
ac_add_options --disable-tests
ac_add_options --disable-debug
mk_add_options MOZ_FETCHES_DIR=/firefox/mozilla-unified/
mk_add_options MOZ_ANDROID_FAT_AAR_ARCHITECTURES=armeabi-v7a,arm64-v8a
mk_add_options MOZ_ANDROID_FAT_AAR_ARM64_V8A=/firefoxnew/libs/geckoview-arm64.aar
mk_add_options MOZ_ANDROID_FAT_AAR_ARMEABI_V7A=/firefoxnew/libs/geckoview-v7a.aar

./mach build

ValueError: Maven zip "/firefoxnew/libs/geckoview-arm64.aar" with more than one candidate AAR found: []

It worked for me up to version 142, but after version 143 it started to fail, always with that error.

5

SOLVED
Instead of specifying the .AAR file, compress the files into ZIP format. “zip file.zip file.arr” and specify the ZIP files instead of the AAR files in the environment variables.