abi-aa

Tech stack & purpose

The abi-aa repository, maintained by Arm, is a collection of Application Binary Interface (ABI) specifications for Arm architectures. It defines standards for low-level code compatibility across Arm 32-bit (AArch32), 64-bit (AArch64), and specialized architectures like Morello. The specifications cover binary file formats (ELF), debug information (DWARF), procedure call conventions, atomics operations, and other ABI-related topics necessary for compiler and toolchain developers. All documents are licensed under CC-BY-SA-4.0 with an additional patent license aligned with Apache 2.0 terms.

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Contributors (top 30 of 62)

• Peter Smith87 commits
• Ties Stuij74 commits
• Simon Tatham19 commits
• Richard Sandiford19 commits
• Francesco Petrogalli18 commits
• Matthew Malcomson13 commits
• Momchil Velikov6 commits
• Keith Walker6 commits
• Luis Machado5 commits
• Lucas Prates5 commits
• Yury Khrustalev5 commits
• Amilendra Kodithuwakku5 commits
• 
  Jessica Clarke5 commits · 98 followers
• Wilco15 commits
• Daniel Kiss4 commits
• Diogo Sampaio4 commits
• Alex Coplan4 commits
• SivanShani-Arm3 commits
• Wilco Dijkstra3 commits
• Silviu Baranga3 commits
• Oliver Stannard3 commits
• Pablo Barrio3 commits
• Fangrui Song3 commits
• 
  Peter Collingbourne2 commits · 62 followers
• Jonathan Thackray2 commits
• Alfie Richards2 commits
• Matthias Rosenfelder2 commits
• Tal Zussman2 commits
• Shoaib Meenai2 commits
• Kerry McLaughlin2 commits