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Certora Customized Rust/Clang toolchain for Solana Platform

Based on the scripts from https://github.com/anza-xyz/platform-tools/

Builds Clang and Rust compilers and libraries that are customized by Certora, and are not yet upstreamed to Rust and LLVM teams.

First time

This repo is a collection of shell scripts and just recipies. If you are lucky (i.e., have all the right libraries and compilation just works), then the following should just work:

$ just all
$ just deploy

This clones all the necessary repositories, applies Certora patches, compiles, and then deploys the new toolchain. The new toolchain will overwrite any existing one. An existing toolchain is expected to be in place to ensure that the rest of Solana CLI is configured properly.

Step by step

If there are issues with complete automation, follow the step-by-step instructions:

$ just clone
$ just prepare
$ just build-rust
$ just build-cargo
$ just build-newlib
$ just package
$ just deploy

There is a known problem with MacPorts version of libiconv and cargo. Some time it might might be necessary to disable libiconv while building cargo.

$ sudo port -f deactivate libiconv
BUILD CARGO MANUALLY'
$ sudo port activate libiconv

Rebuild

To rebuild after a change in LLVM and/or Rust

$ just rebuild

To rebuild and redeploy together

$ just redeploy

Installation of executables

  1. Create directory $HOME/platform-tools-certora

  2. Go to releases (https://github.com/Certora/certora-solana-platform-tools/releases) and download the right executable for your machine. For instance, for mac you can type:

wget https://github.com/Certora/certora-solana-platform-tools/releases/download/osx-aarch64/platform-tools-osx-aarch64.tar.bz2

Please, make sure you download the latest version.

  1. Uncompress using your favourite tool the tar.bz2 file in $HOME/platform-tools-certora.

    Verify that $HOME/platform-tools-certora contains llvm and rust:

    ls $HOME/platform-tools-certora/
    llvm       rust       version.md
    • On macOS, you might need to adjust the permissions for the executables and dynamic libraries:
      sudo xattr -rd com.apple.quarantine $HOME/platform-tools-certora
  2. cd $HOME/.cache/solana/v1.41

    If this directory does not exist then you need to install first Solana platform-tools.

    cd $HOME/.local/share/solana/install/active_release/bin/sdk/sbf
    source env.sh
    
  3. Backup platform-tools: mv platform-tools platform-tools-backup

  4. ln -sf $HOME/platform-tools-certora ./platform-tools

Known problems

If you get this error:

Finished release [optimized] target(s) in 0.20s
dyld[83246]: Library not loaded: /opt/local/lib/libz.1.dylib
  Referenced from: <AB7A9406-4C8E-336E-ABD7-5E95DBE589C1> /Users/gadiauerbach/platform-tools-certora/llvm/bin/llvm-objcopy
  Reason: tried: '/opt/local/lib/libz.1.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/local/lib/libz.1.dylib' (no such file), '/opt/local/lib/libz.1.dylib' (no such file)
/Users/gadiauerbach/.local/share/solana/install/releases/1.18.16/solana-release/bin/sdk/sbf/scripts/strip.sh: line 23: 83246 Abort trap: 6           "$sbf_sdk"/dependencies/platform-tools/llvm/bin/llvm-objcopy --strip-all "$so" "$so_stripped"
error: Recipe `build-sbf` failed on line 12 with exit code 1

Then, type the following command:

cp $HOME/.cache/solana/v1.41/platform-tools-backup/llvm/bin/llvm-objcopy $HOME/.cache/solana/v1.41/platform-tools/llvm/bin/