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Silkworm

C++ implementation of the Ethereum protocol. It's conceived as an evolution of the Turbo-Geth project, as outlined in its release commentary.

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Building the source

Clone the repository

git clone --recurse-submodules https://github.com/torquem-ch/silkworm.git

To update the submodules later on run

git submodule update --init --recursive

Linux & macOS

Building silkworm requires:

  • C++17 compiler (GCC or Clang)
  • CMake
  • GMP (sudo apt-get install libgmp3-dev or brew install gmp)

Once the prerequisites are installed, bootstrap cmake by running

mkdir build
cd build
cmake ..

(In the future you don't have to run cmake .. again.)

Then run the build itself

make -j

Now you can run the unit tests

cmd/unit_test

or Ethereum Consensus Tests

cmd/consensus

You can also execute Ethereum blocks with Silkworm. For that you need an LMDB instance populated with Ethereum blocks, which can be produced by running the first 4 stages of Turbo-Geth sync, prior to the transaction replay stage. Then run

cmd/execute -d <path-to-chaindata>

Windows

  • Install Visual Studio 2019. Community edition is fine.
  • Make sure your setup includes CMake support and Windows 10 SDK.
  • Install vcpkg.
  • .\vcpkg\vcpkg install mpir:x64-windows
  • Add <VCPKG_ROOT>\installed\x64-windows\include to your INCLUDE environment variable.
  • Add <VCPKG_ROOT>\installed\x64-windows\bin to your PATH environment variable.
  • Open Visual Studio and select File -> CMake...
  • Browse the folder where you have cloned this repository and select the file CMakeLists.txt
  • Let CMake cache generation complete (it may take several minutes)
  • Solution explorer shows the project tree.
  • To build simply CTRL+Shift+B
  • Binaries are written to %USERPROFILE%\CMakeBuilds\silkworm\build If you want to change this path simply edit CMakeSettings.json file.

Code style

We use the standard C++17 programming language. We follow Google's C++ Style Guide with the following differences:

  • snake_case for function names.
  • .cpp & .hpp file extensions for C++; .c & .h are reserved for C.
  • Exceptions are allowed.
  • User-defined literals are allowed.
  • Maximum line length is 120, indentation is 4 spaces – see .clang-format.

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C++ implementation of the Ethereum protocol

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  • C++ 96.1%
  • CMake 2.3%
  • C 1.6%