ABI

Cross-platform ABIs

  • extern "Rust": Default for regular rust function declarations
  • extern "C": Default for extern block function declarations
  • extern "system": "C", but for Win32 on x86_32 it's stdcall

Platform-specific ABIs

Non-exhaustive list:

  • extern "cdecl"
  • extern "stdcall"
  • extern "win64"
  • extern "sysv64"
  • extern "aapcs"
  • extern "fastcall"
  • extern "vectorcall"
  • extern "thiscall"
  • extern "efiapi"

Examples

// Same as extern "C" { }
extern { }

References