參考資訊：
https://chromium.googlesource.com/chromiumos/docs/+/HEAD/constants/syscalls.md
https://github.com/matja/asm-examples/blob/master/aarch64/hello.aarch64.linux.syscall.gas.asm
main.s
.global _start
.data
msg: .asciz "hello, world!\n"
len = . - msg
.text
_start:
mov x8, #64
mov x0, #1
ldr x1, =msg
ldr x2, =len
svc #0
mov x8, #93
mov x0, #0
svc #0
| NR | syscall name | x8 | arg0(x0) | arg1(x1) | arg2(x2) |
|---|---|---|---|---|---|
| 64 | write | 4 | unsigned int fd | const char *buf | size_t count |
| 93 | exit | 1 | int error_code |
編譯、執行
$ aarch64-linux-gnu-gcc main.s -o main -nostdlib -static
$ qemu-aarch64 ./main
hello, world!