use our docker kobase image for Github Actions

[benoit-pierre]

This change is 

[benoit-pierre]

I don't know why the remarkable-aarch64 build is failing:

[INFO ]    Building for multilib 1/1: ''
[EXTRA]      Configuring C library
[ERROR]      configure: error: *** The available kernel headers are older than the requested
[ERROR]  
[ERROR]  >>
[ERROR]  >>  Build failed in step 'Building for multilib 1/1: '''
[ERROR]  >>        called in step 'Installing C library'
[ERROR]  >>        called in step '(top-level)'
[ERROR]  >>
[ERROR]  >>  Error happened in: CT_DoExecLog[scripts/functions@378]
[ERROR]  >>        called from: glibc_backend_once[scripts/build/libc/glibc.sh@296]
[ERROR]  >>        called from: CT_IterateMultilibs[scripts/functions@1610]
[ERROR]  >>        called from: glibc_main[scripts/build/libc/glibc.sh@87]
[ERROR]  >>        called from: do_libc_main[scripts/build/libc.sh@33]
[ERROR]  >>        called from: main[scripts/crosstool-NG.sh@710]
[ERROR]  >>
[ERROR]  >>  For more info on this error, look at the file: 'build.log'
[ERROR]  >>  There is a list of known issues, some with workarounds, in:
[ERROR]  >>      https://crosstool-ng.github.io/docs/known-issues/
[ERROR]  >>
[ERROR]  >> NOTE: Your configuration includes features marked EXPERIMENTAL.
[ERROR]  >> Before submitting a bug report, try to reproduce it without enabling
[ERROR]  >> any experimental features. Otherwise, you'll need to debug it
[ERROR]  >> and present an explanation why it is a bug in crosstool-NG - or
[ERROR]  >> preferably, a fix.
[ERROR]  >>
[ERROR]  >>  If you feel this is a bug in crosstool-NG, report it at:
[ERROR]  >>      https://github.com/crosstool-ng/crosstool-ng/issues/
[ERROR]  >>
[ERROR]  >>  Make sure your report includes all the information pertinent to this issue.
[ERROR]  >>  Read the bug reporting guidelines here:
[ERROR]  >>      http://crosstool-ng.github.io/support/
[ERROR]  
[ERROR]  (elapsed: 16:26.18)

[NoaHimesaka1873]

Might be some mismatch? It does build fine on 22.04 GH Actions and my personal Arch Linux installation. Try downgrading to 22.04.

[benoit-pierre]

But we're building in docker now, which should isolate us from the runner image version.

[benoit-pierre]

Looking at the diff between the 2 remarkable configs, I noticed that we're not using CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES=y:

--- /proc/self/fd/13	2025-04-22 04:30:11.623395735 +0200
+++ /proc/self/fd/15	2025-04-22 04:30:11.624395752 +0200
@@ -1,25 +1,18 @@
 CT_CONFIG_VERSION="4"
-CT_OBSOLETE=y
 CT_EXPERIMENTAL=y
-CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES=y
 CT_ARCH_ARM=y
-CT_ARCH_CPU="cortex-a9"
-CT_ARCH_ARM_MODE_THUMB=y
-CT_ARCH_FPU="neon"
-CT_ARCH_FLOAT_HW=y
-CT_TOOLCHAIN_PKGVERSION="NiLuJe"
+CT_ARCH_64=y
+CT_ARCH_CPU="cortex-a53"
+CT_TOOLCHAIN_PKGVERSION="Noa Himesaka"
 CT_TARGET_VENDOR="remarkable"
 CT_KERNEL_LINUX=y
-CT_LINUX_V_4_9=y
+CT_LINUX_V_6_1=y
 CT_BINUTILS_LINKER_LD_GOLD=y
 CT_BINUTILS_GOLD_THREADS=y
 CT_BINUTILS_LD_WRAPPER=y
 CT_BINUTILS_PLUGINS=y
-CT_GLIBC_V_2_27=y
+CT_GLIBC_V_2_35=y
 CT_GLIBC_KERNEL_VERSION_CHOSEN=y
-CT_GLIBC_MIN_KERNEL_VERSION="4.1.28"
-# CT_CC_GCC_STATIC_LIBSTDCXX is not set
-# CT_CC_GCC_USE_GRAPHITE is not set
-# CT_CC_GCC_ENABLE_TARGET_OPTSPACE is not set
+CT_GLIBC_MIN_KERNEL_VERSION="6.1.55"
 CT_CC_GCC_LNK_HASH_STYLE_GNU=y
 CT_CC_LANG_CXX=y

Might be why the resulting artifact is ~48 MB bigger for remarkable-aarch64 than remarkable? (Cf. https://github.com/koreader/koxtoolchain/actions/runs/14551016601)

[NoaHimesaka1873]

Yeah I missed that one. Though it shouldn't affect compiling.

[NoaHimesaka1873]

I think we should merge the bare 22.04 one and work on this kobase one later, since it would work the same way for now.

[NoaHimesaka1873]

Can repro this weird behavior on my local machine running same container to build. It fetches Linux version 5.2 when it should try to fetch 6.1. Also happens on vanilla ubuntu:22.04 container.

[NoaHimesaka1873]

I dug a bit further, but still can't figure out why it's downgrading itself to 5.2. I think it's better to build remarkable-aarch64 on bare GH Actions 22.04.

[benoit-pierre]

Linux >=5.3 requires rsync…

[benoit-pierre]

git.savannah.gnu.org being flaky…

[NoaHimesaka1873]

Linux >=5.3 requires rsync…

Oh shoot, how could I miss that lol

[benoit-pierre]

@NiLuJe: ping!

[NiLuJe]

Oh, sorry, didn't notice this was in this repo, lol ;).