EOSIO.CDT (Contract Development Toolkit)

Version : 1.8.1

EOSIO.CDT is a toolchain for WebAssembly (WASM) and a set of tools to facilitate smart contract development for the EOSIO platform. In addition to being a general purpose WebAssembly toolchain, EOSIO specific optimizations are available to support building EOSIO smart contracts. This new toolchain is built around Clang 9, which means that EOSIO.CDT has the most currently available optimizations and analyses from LLVM, but as the WASM target is still considered experimental, some optimizations are incomplete or not available.

New Introductions

As of this release two new repositories are under the suite of tools provided by EOSIO.CDT. These are the Ricardian Template Toolkit and the Ricardian Specification. The Ricardian Template Toolkit is a set of libraries to facilitate smart contract writers in crafting their Ricardian contracts. The Ricardian specification is the working specification for the above mentioned toolkit. Please note that both projects are alpha releases and are subject to change.

Attention

Please see the Upgrading Guide 1.2 to 1.3 and Upgrading Guide 1.5 to 1.6 to be aware of any breaking changes.
There is currently a known issue that a minimum of 2 CPU cores is required for using EOSIO.CDT

Binary Releases

EOSIO.CDT currently supports Mac OS X brew, Linux x86_64 Debian packages, and Linux x86_64 RPM packages.

If you have previously installed EOSIO.CDT, run the uninstall script (it is in the directory where you cloned EOSIO.CDT) before downloading and using the binary releases.

Mac OS X Brew Install

brew tap eosio/eosio.cdt
brew install eosio.cdt

Mac OS X Brew Uninstall

brew remove eosio.cdt

Debian Package Install

wget https://github.com/eosio/eosio.cdt/releases/download/v1.8.1/eosio.cdt_1.8.1-1-ubuntu-18.04_amd64.deb
sudo apt install ./eosio.cdt_1.8.1-1-ubuntu-18.04_amd64.deb

Debian Package Uninstall

sudo apt remove eosio.cdt

RPM Package Install

wget https://github.com/eosio/eosio.cdt/releases/download/v1.8.1/eosio.cdt-1.8.1-1.el7.x86_64.rpm
sudo yum install ./eosio.cdt-1.8.1-1.el7.x86_64.rpm

RPM Package Uninstall

sudo yum remove eosio.cdt

Guided Installation or Building from Scratch

git clone --recursive https://github.com/eosio/eosio.cdt
cd eosio.cdt
mkdir build
cd build
cmake ..
make -j8

From here onward you can build your contracts code by simply exporting the build directory to your path, so you don't have to install globally (makes things cleaner). Or you can install globally by running this command:

sudo make install

Uninstall after manual installation

sudo rm -fr /usr/local/eosio.cdt
sudo rm -fr /usr/local/lib/cmake/eosio.cdt
sudo rm /usr/local/bin/eosio-*

Installed Tools

eosio-cpp
eosio-cc
eosio-ld
eosio-init
eosio-abidiff
eosio-wasm2wast
eosio-wast2wasm
eosio-ranlib
eosio-ar
eosio-objdump
eosio-readelf

Contributing

Contributing Guide

Code of Conduct

License

MIT

Important

See LICENSE for copyright and license terms.

All repositories and other materials are provided subject to the terms of this IMPORTANT notice and you must familiarize yourself with its terms. The notice contains important information, limitations and restrictions relating to our software, publications, trademarks, third-party resources, and forward-looking statements. By accessing any of our repositories and other materials, you accept and agree to the terms of the notice.

License

EOSIO/eosio.cdt

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