Function malloc

euralios_std/src/syscalls.rs:401–432

(
    num_bytes: u64,
    max_physaddr: u64
)

}

pub fn malloc(
    num_bytes: u64,
    max_physaddr: u64
) -> Result<(MemoryHandle, u64), SyscallError> {

    if num_bytes == 0 {
        return Err(SYSCALL_ERROR_PARAM);
    }

    let num_pages = (num_bytes >> 12) +
        if (num_bytes & 4095) != 0 {1} else {0};

    let error: u64;
    let virtaddr: u64;
    let physaddr: u64;
    unsafe {
        asm!("syscall",
             in("rax") SYSCALL_MALLOC,
             in("rdi") num_pages, // First argument
             in("rsi") max_physaddr, // Second argument
             lateout("rax") error,
             lateout("rdi") virtaddr,
             lateout("rsi") physaddr,
             out("rcx") _,
             out("r11") _);
    }
    if error == 0 {
        Ok((MemoryHandle(virtaddr), physaddr))
    } else {
        Err(SyscallError(error))
    }
}

pub fn new_rendezvous() -> Result<(CommHandle, CommHandle), SyscallError> {
    let error: u64;