have a try 1.5.0-rc1

[terasakisatoshi]

This PR adds Dockerfile that builds Julia 1.5.0-rc1 for Armv7/Armv6 devices.

You can try pre-build binary via

# rpi3
docker pull terasakisatoshi/jlcross:rpi3-v1.5.0-rc1
# rpizero
docker pull terasakisatoshi/jlcross:rpizero-v1.5.0-rc1

Note that we've added JULIA_PRECOMPILE=0 to Make.user to pass building procedure, otherwise we can't finish.

This issue may happens to Tier3's system. I think JuliaLang/julia#33842 happens again.

Base  ───────────227.233298 seconds
Base64  ───────── 21.916886 seconds
CRC32c  ─────────  0.090803 seconds
SHA  ────────────  1.372108 seconds
FileWatching  ───  0.601783 seconds
Unicode  ────────  0.038136 seconds
Mmap  ───────────  0.711052 seconds
Serialization  ──  2.715313 seconds
Libdl  ──────────  0.197182 seconds
Printf  ─────────  2.193781 seconds
Markdown  ─────── 10.687471 seconds
LibGit2  ──────── 13.036388 seconds
Logging  ────────  0.397586 seconds
Sockets  ────────  2.877765 seconds
Profile  ────────  2.040841 seconds
Dates  ────────── 20.438833 seconds
DelimitedFiles  ─  0.716780 seconds
Random  ─────────  4.209028 seconds
UUIDs  ──────────  0.144898 seconds
Future  ─────────  0.024709 seconds
LinearAlgebra  ── 71.450742 seconds
SparseArrays  ─── 32.784123 seconds
SuiteSparse  ────  7.635411 seconds
Distributed  ────  6.458067 seconds
SharedArrays  ───  1.183572 seconds
Pkg  ────────────105.492334 seconds
Test  ───────────  6.821165 seconds
REPL  ───────────  0.000947 seconds
Statistics  ─────  1.560295 seconds
Stdlibs total  ──317.972035 seconds
Sysimage built. Summary:
Total ─────── 545.205984 seconds
Base: ─────── 227.233298 seconds 41.6784%
Stdlibs: ──── 317.972035 seconds 58.3215%
# <-----Stops forever

[terasakisatoshi]

• Note that, since we've skipped JULIA_PRECOMPILE=0, it takes much time to JIT compile for arbitrary actions even the most simple math in the world like 1+1 😂 .

[terasakisatoshi]

• Julia v1.2.0 hangs when building - Stuck generating precompile statements JuliaLang/julia#33842 (comment) will enable us to know Generating precompile statements... is going on.

[terasakisatoshi]

Could someone post issue or PR to JuliaLang ? (not here)

[terasakisatoshi]

We need add patch to generate_precompile.jl:

• set debug_output = stdout for debugging
• comment out
  • https://github.com/JuliaLang/julia/blob/master/contrib/generate_precompile.jl#L63-L65
• remove @assert n_succeeded > 1500

[terasakisatoshi]

Yeah!

[terasakisatoshi]

Todo: add neon like:

https://github.com/Julia-Embedded/jlcross/blob/master/rpi3/Dockerfile-v1.4.2#L23-L24

[terasakisatoshi]

Ah sorry, I pushed Dockerfie rpi3 that of 1.4.2 ... I need fix

[terasakisatoshi]

I think it’s time to merge.