gifcc

"gifcc" is a self-hosted C compiler written by gifnksm.

Features

• emit x86_64 assembly (AT&T syntax or Intel syntax)
• self-hosted
• Many C11 features
• Some GNU syntax extension

Compiler Stages

gifcc build process has 3 stages.

• stage1: gifcc binary built with system's C compiler (gcc)
• stage2: gifcc binary built with stage1 gifcc
• stage3: gifcc binary built with stage2 gifcc

If gifcc compiles C source code correctly, stage2 binary and stage3 binary will be identical.

Requirements

• C development tools (gcc, GNU Make, ...)
• python3
• TMSU (for running c-testsuite)

Operations

• Build stage1, 2, 3 compiler

  $ make stage1
  ...
  $ make stage2
  ...
  $ make stage3
  ...
  

• Run basic tests for each stages

  $ make stage1-test
  ...
  $ make stage2-test
  ...
  $ make stage3-test
  ...
  

• Run all tests for each stages

  $ make stage1-test-full
  ...
  $ make stage2-test-full
  ...
  $ make stage3-test-full
  ...
  

Special Thanks

• 低レイヤを知りたい人のためのCコンパイラ作成入門
• できる！　コンパイラ作成の資料まとめ
• Compiler Explorer
• Wandbox
• Dave Prosser's C Preprocessing Algorithm
• c-testsuite

References

• Programming languages — C
• x86 and amd64 instruction reference
• System V Application Binary Interface
• GNU as