halium-generic-adaptation-build-tools: use main branch

Issue

• Current situation :

  In build.sh and .gitlab-ci.yml files, we use halium-10/halium-10-focal branch of halium-generic-adaptation-build-tools repository.

• What does UBports official documentation say ?

  By using the shared script, your port will receive the latest changes in device tarball building as rootfs continues to evolve (e.g. for 22.04 or newer).

  • UBports Documentation uses default branch (main) of halium-generic-adaptation-build-tools repository :
    for-gitlab-ci-based-ports-switch-to-shared-building-script-gitlab-ci-configuration

    build.sh

    #!/bin/bash
    set -xe
    
    [ -d build ] || git clone https://gitlab.com/ubports/community-ports/halium-generic-adaptation-build-tools build
    ./build/build.sh "$@"

    .gitlab-ci.yml

    include:
       - https://gitlab.com/ubports/porting/community-ports/halium-generic-adaptation-build-tools/-/raw/main/gsi-port-ci.yml
    
    variables:
       BUILD_DEVEL_FLASHABLE_FOCAL: "1"

  • UBports Documentation specifies halium version in deviceinfo file :
    filling-in-your-deviceinfo

    • Add this option to specify your Halium version. Up to Halium 13 is supported at this moment.
      deviceinfo_halium_version="11"

    🔗 This page of the UBports documentation is relatively recent : https://github.com/ubports/docs.ubports.com/commits/master/porting/UpdatePortsFor2004.rst

• What does UBports Porting Telegram Group say ?

  • according to the following message, halium-11 branch is legacy, so probably halium-10 branch too :
    https://t.me/ubports_porting/194304
    
  • according to the following message, non main branches are legacies :
    https://t.me/ubports_porting/190731
    

• What will happen during migration to 24.04-noble ?
  The use of the halium-10-focal branch in line 6 of .gitlab-ci.yml may cause problems.

• Differences between default (main) and halium-10/halium-10-focal branches of halium-generic-adaptation-build-tools repository :

  	default (main)	halium-10/halium-10-focal
  gsi-port-ci.yml	uses ubuntu 22.04 image	uses ubuntu 20.04 image
  build.sh build-kernel.sh	optional support for : - deviceinfo_kernel_llvm_compile https://docs.kernel.org/kbuild/llvm.html

Fix

I copied /pasted the content of the build.sh and .gitlab ci.yaml files from the official documention to the xiaomi-surya repository.
I specified our halium version in deviceinfo file.

Tests

I built the images and flashed them on my phone with fastboot flash.

• The xenial development atifact is no more built.
• There is a ~25% gain at endurance level.
• The reboot time is shorter.
• It seems to me that applications are getting slightly faster and the the device heats a little less.
• No performance loss.
• Stability is good. No system/application crash during tests.
• Later, we will have the possibility of using LLVM to build the kernel.

Battery lifetime : 7-hour gain (greater than 25%)

before fix : 27 hours	after fix : 34 hours

Reboot time

before fix : random. often greater than 1 min	after fix : less than 20 sec

Performance : no loss

• WebGL : no loss

before fix : 36 fps	after fix : 37 fps

• CPU : no loss
  • before fix

    sysbench --test=cpu --num-threads=2 --cpu-max-prime=20000 run
        1985 events per second
    sysbench --test=cpu --num-threads=8 --cpu-max-prime=20000 run
        4010 events per second
    
    sysbench --test=memory --num-threads=4 run
        Total operations: 47619005 (4759595.74 per second)
        46502.93 MiB transferred (4648.04 MiB/sec)
    
    sysbench --test=mutex --num-threads=64 run
        total time: 4.8462s

  • after fix

    sysbench --test=cpu --num-threads=2 --cpu-max-prime=20000 run
        1989 events per second
    sysbench --test=cpu --num-threads=8 --cpu-max-prime=20000 run
        4012 events per second
    
    sysbench --test=memory --num-threads=4 run
        Total operations: 47641133 (4763089.31 per second)
        46524.54 MiB transferred (4651.45 MiB/sec)
    
    sysbench --test=mutex --num-threads=64 run
        total time: 4.8909s