chore: build filecoin-ffi on arm based OS

.circleci/config.yml

@@ -334,4 +334,4 @@ commands:
       - save_cache:
           key: v28-proof-params-{{ arch }}
           paths:
-            - "~/filecoin-proof-parameters/"
+            - "~/filecoin-proof-parameters/"

builder/arm64/Dockerfile

@@ -0,0 +1,20 @@
+#FROM --platform=arm64 golang@sha256:96e888160bd68f54a1165b23c66318aea4ff6a4726cb854276d6d776c14b8978
+FROM ubuntu:latest as builder
+#FROM rust:slim-buster@sha256:5b0c5f6cd5aa84f6dd3f2188ac84aa0e0d602b514ccc14e9d1ebd5b865aa7849
+#FROM golang:1.17.9-stretch
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    apt-get install -y wget jq hwloc ocl-icd-opencl-dev git libhwloc-dev pkg-config make curl  && \
+    apt-get install -y cargo golang-go
+
+WORKDIR /filecoin-ffi/
+
+#RUN curl https://sh.rustup.rs -sSf | bash -s -- -y
+RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly -y
+ENV PATH="/root/.cargo/bin:${PATH}"
+RUN rustup +nightly target add aarch64-unknown-linux-gnu
+RUN cargo --help
+RUN git clone https://github.com/filecoin-project/filecoin-ffi.git . && \
+   RUSTFLAGS="-C target-cpu=native -g" FFI_BUILD_FROM_SOURCE=1 make

builder/arm64/README.md

@@ -0,0 +1,27 @@
+# filecoin-ffi build workaround
+
+As of this writing, .circleci does not support arm based images and as a workaround we need to try and build the filecoin-ffi in a containerized environment. The workaround is to create a docker image using an ARM64 based operating system and build the binaries in the image. We can then pull (`cp`) the binaries to the host.
+
+## Pre-requisites
+- docker
+- bash
+- tar
+
+There are 2 files in this repo:
+- Dockerfile this is the main docker file that will run the steps to build the latest master branch of filecoin-ffi on ubuntu
+- run_arm_build_docker.sh - this script runs the docker build and extract the content from the image to the host.
+
+## Running
+```
+./run_arm_build_docker.sh
+```
+
+
+## Builders
+We can use some of these images as builders. They are all arm64 based.
+```
+FROM --platform=arm64 golang@sha256:96e888160bd68f54a1165b23c66318aea4ff6a4726cb854276d6d776c14b8978 as builder
+FROM ubuntu:latest as builder
+FROM rust:slim-buster@sha256:5b0c5f6cd5aa84f6dd3f2188ac84aa0e0d602b514ccc14e9d1ebd5b865aa7849 as builder
+FROM golang:1.17.9-stretch as builder
+```

builder/arm64/run_arm_build_docker.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+timestamp=$(date +%s)
+name=arm_build_only_$timestamp
+docker build -t $name .
+
+# get the container id
+id=$(docker create $name)
+docker cp $id:/filecoin-ffi/ - > $name.tar.gz
+
+## extract 
+tar -xvf $name.tar.gz
+
+## Copy to wherever..

install-filcrypto

@@ -161,7 +161,10 @@ build_from_source() {
     if [ "$(uname -s)" = "Darwin" ] && [ "$(uname -m)" = "x86_64" ]; then
         build="lipo"
         additional_flags="--targets x86_64-apple-darwin,aarch64-apple-darwin "
-    else
+    elif [ "$(uname -m)" = "arm64" ]; then
+        build="build"
+        additional_flags="--target aarch64-unknown-linux-gnu "
+    else 
         build="build"
     fi