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V8-RISCV

Welcome to the v8-riscv wiki

This is an on-going project to enhance the RISC-V backend for the V8 JavaScript Engine. The initial port has been upstreamed (https://chromium.googlesource.com/v8/v8.git/). The RISC-V backend is fully functional and is able to run the full test suites as well has common benchmarks, but it still needs improvements for improving performance and adding features. We have established a sustainable porting methodology and development best practices, such that we feel confident to invite broader community participation. We welcome you to join our development effort. Plenty of support is still needed for a complete and high-performing V8 on RISC-V.

This repo will be the community home even though it is now available upstream. This provides us a shared space for developing larger changes here before pushing them upstream, as well as a stable branch that will always work for RISC-V, as upstream may still break the RISC-V port from time to time. For general V8 information, see V8 Dev. The rest of the wiki is specific to the RISC-V V8 backend.

RISC-V ISA specification is found here, and RISC-V standard ABI can be found here.

Getting Started

• Get the source
• Cross-compiled build (running on QEMU/HiFive)
• Simulator build (for developers running on x86)
• Run tests
• Build RPM packages
• Getting-Started-for-RV32G-porting
• How to make the first pull request to RV32G branch
• How to do the monthly rebase to upstream main branch

Project Management

• Project roadmap
• 2021-Goals
• Testing status
• Work groups
• Upstream Workflow

For Developers

• Setup VSCode
• How to contribute
• How to debug V8

RISC-V Backend Design Doc

• Understand V8 backend architecture
• How to add a new instruction
• How to run v8 on Android RISCV64

Community operation

• Join our Slack

• Attend our bi-weekly developer Zoom Meeting

  Meeting Info	Description
  Next meeting	09/12/2021 (Beijing)
  Time	(Thursdays 14pm Beijing Time)
  Meeting ID	876 4151 0603
  Passcode	714793

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