sys_memfd_create

kernel::abi::linux::riscv64::proc

Function sys_memfd_create 

Source 
pub fn sys_memfd_create(
    abi: &mut LinuxRiscv64Abi,
    trapframe: &mut Trapframe,
) -> usize
Expand description

Linux sys_memfd_create - Create an anonymous file descriptor for memory mapping

Creates a new anonymous file descriptor that can be used for memory mapping. This is primarily used by Wayland clients for shared memory.

Arguments:

  • abi: LinuxRiscv64Abi context
  • trapframe: Trapframe containing syscall arguments
    • arg0: uname (name for the memfd - can be NULL)
    • arg1: flags (MFD_CLOEXEC, MFD_ALLOW_SEALING, etc.)

Returns:

  • New file descriptor on success
  • usize::MAX (Linux -1) on error