vendor/rustix/src/backend/linux_raw/arch/outline/mod.rs

   1 //! Declare functions defined in out-of-line ("outline") asm files.
   2 //!
   3 //! Kernel calling conventions differ from userspace calling conventions, so we
   4 //! also define inline function wrappers which reorder the arguments so that
   5 //! they match with the kernel convention as closely as possible, to minimize
   6 //! the amount of out-of-line code we need.
   7 //!
   8 //! This is needed because as of our MSRV of 1.63, inline asm and naked
   9 //! functions are experimental.
  10
  11 #[cfg(target_arch = "x86")]
  12 mod x86;
  13 // For these architectures, pass the `nr` argument last.
  14 #[cfg(any(
  15     target_arch = "mips",
  16     target_arch = "mips64",
  17     target_arch = "powerpc64",
  18 ))]
  19 mod nr_last;
  20
  21 #[cfg(any(
  22     target_arch = "mips",
  23     target_arch = "mips64",
  24     target_arch = "powerpc64",
  25 ))]
  26 pub(in crate::backend) use nr_last::*;
  27 #[cfg(target_arch = "x86")]
  28 pub(in crate::backend) use x86::*;