> Сколько весит хелло ворд на русте с зависимостями?

500 байт

$ cat hello.rs
#![no_std]
#![no_main]
use core::panic::PanicInfo;
use syscall::syscall;
#[panic_handler]
fn panic(_info: &PanicInfo) -> ! { loop {} }
#[no_mangle]
pub extern fn _start() -> ! {
    let message = "Hello World\n".as_bytes();
    unsafe {
        syscall!(WRITE, 0, message.as_ptr(), message.len());
        syscall!(EXIT,0);
    }
    loop {}
}

$ ./hello
Hello World

$ ll hello
-rwxr-x---   496B 30 Jul. 12:41 hello*
$  readelf -d hello  
There is no dynamic section in this file.
$ objdump -d  hello

Disassembly of section .text:
00000000004000b0 <.text>:
  4000b0:    55                       push   %rbp
  4000b1:    48 89 e5                 mov    %rsp,%rbp
  4000b4:    6a 04                    pushq  $0x4
  4000b6:    58                       pop    %rax
  4000b7:    6a 09                    pushq  $0x9
  4000b9:    5a                       pop    %rdx
  4000ba:    be cc 00 40 00           mov    $0x4000cc,%esi
  4000bf:    31 ff                    xor    %edi,%edi
  4000c1:    0f 05                    syscall 
  4000c3:    6a 01                    pushq  $0x1
  4000c5:    58                       pop    %rax
  4000c6:    31 ff                    xor    %edi,%edi
  4000c8:    0f 05                    syscall 
  4000ca:    eb fe                    jmp    0x4000ca