Macos with m1 chip: Bad CPU type in executable

[matthewmaclay]

Prerequisites:
Macos Monterey 12.2.1
CPU: Apple M1

Run npm run build:program-rust
And get output

cargo build-bpf --manifest-path=./src/program-rust/Cargo.toml --bpf-out-dir=dist/program

BPF SDK: /Users/matthew/.local/share/solana/install/releases/stable-b0377bf77ca56ca3db7a339f69f8e8ccb1433904/solana-release/bin/sdk/bpf
cargo-build-bpf child: rustup toolchain list -v
cargo-build-bpf child: cargo +bpf build --target bpfel-unknown-unknown --release
error: command failed: 'cargo': Bad CPU type in executable (os error 86)

[YutaFujii0]

I had the same error and I managed to pass npm run build:program-rust step using docker.

# At your repository root
touch Dockerfile
docker build -t builder - < Dockerfile

docker run --platform linux/amd64 --mount type=bind,src=$(pwd),dst=/app builder
# This took several minutes to finish in my case. The last few lines of the output is like:

...

+ exit 0
cargo-build-bpf child: /root/.local/share/solana/install/releases/1.10.26/solana-release/bin/sdk/bpf/dependencies/bpf-tools/llvm/bin/llvm-readelf --dyn-symbols /app/dist/program/helloworld.so

To deploy this program:
  $ solana program deploy /app/dist/program/helloworld.so
The program address will default to this keypair (override with --program-id):
  /app/dist/program/helloworld-keypair.json

Here's what Dockerfile looks like:

FROM --platform=linux/amd64 rust:1-buster

WORKDIR /app

# install solana since `cargo build-bpf` custom cargo command (cargo-build-bpf) is generated here
RUN sh -c "$(curl -sSfL https://release.solana.com/v1.10.26/install)"

# export additioan path
ENV PATH="/root/.local/share/solana/install/active_release/bin:${PATH}"

# execute what `npm run build:program-rust` does
CMD cargo build-bpf --manifest-path=./src/program-rust/Cargo.toml --bpf-out-dir=dist/program

NOTE: I only use docker for this npm run build:program-rust step to get helloworld-kaypair.json and helloworld.so files in dist/program/ directory. For other steps, instructed commands run without failure on M1 mac for my case.

Hope this helps.