/spidermonkey-doc

Primary LanguageShell

Welcome to the gecko-dev-riscv wiki! This repository aims to port features for Spidermonkey to RV64GC Linux platform (RISC-V ISA).

Table of Contents

Goal

The goal of this project is to port Spidermonkey's Baseline JIT Compilers to RISC-V ISA's RV64GC Platform. Adding additonal Spidermonkey support features for RISC-V architecture is desired.

Roadmap

Time Task Log
Week 0 Pre - Tasks
Week 1 Introduction and Induction
Week 2 Understanding Mozilla Codebase and testing on x86
Week 3 Relating prev work with RISC-V
Week 4 Cross compiling on RV64GC
Week 5 Understanding JIT Code Structure
Week 6 Establising Base JIT Code Skeleton for RISC-V
Week 7 Native Compile using QEMU on Linux Fedora
Week 8 Native Compile Try on RISCV Unmatched Board
Week 9 Working on RISCV architecture and baseline code files
Week 10 Started Regression testing for RISCV
Week 11 Finalising JIT Code and initiating patch
Week 12 Finishing Documentation and post for review

Schedule

Work Timeline: September 2021 to November 2021 Future Plans: Contribute towards achieving all deliverables

How to collaborate (Join Us!)

  1. Check out for exisiting issues or open up new ones. Feel free to comment on the issues. Contributors will reach out to you soon!
  2. Contact on of the maintainers regarding work on that particular fix/issue.
  3. Fork this repository.
  4. Clone your fork to the local system or work environment
git clone https://github.com/<your_username>/gecko-dev-riscv
  1. Commit and Push suitable changes to your fork.
git add .
git commit -m "<suitable_commit_message>"
git push origin <branch_name>
  1. Issue a pull request to the necessary branch.

Deliverables

For Spidermonkey

  • Generate binary executable for x86
  • Native Compile Spidermonkey on x86
  • Regression testing for x86
  • Base JIT skeleton structure for RISC-V
  • Generate binary executable for RISC-V
  • Study RISC-V architecture
  • Porting Baseline JIT Compiler and Interpreter to RISC-V
  • JIT Regression testing on RV64GC Linux platform
  • JS Regression testing for RV64GC Linux platform
  • Porting complete JIT architecture to RISC-V
  • Cross Compile Spidermonkey on RV64GC Linux platform
  • Native Compile Spidermonkey on RV64GC Linux platform
    • Native Compile using Emulator (QEMU/ TinyEMU)
    • Native Compile using RISC-V Unleashed Board
  • Upstreaming changes for code review

Upstreaming

Upstreaming work in progress

Documents and Findings

  1. Discourse Thread
  2. Github Issues
  3. Main Docuement
  4. JIT Documentation
  5. JIT Theory
  6. Work Repo

Conclusions

  1. Cross compiling Spidermonkey on RV64GC induces many linking errors after generating the binaries.
  2. Native compiling Spidermonkey on QEMU/TinyEMU emulator produces faster results than RISC-V Unmatched Hardware Board.

Contributors

  1. Ninad Jangle
  2. Dhairya Shah
  3. Wei Wu