/* aarch64 freestanding Linux hello world * https://github.com/cirosantilli/linux-kernel-module-cheat#linux-system-calls */ .text .global _start _start: asm_main_after_prologue: /* write */ mov x0, 1 /* stdout */ adr x1, msg /* buffer */ ldr x2, =len /* len */ mov x8, 64 /* syscall number */ svc 0 /* exit */ mov x0, 0 /* exit status */ mov x8, 93 /* syscall number */ svc 0 msg: .ascii "hello\n" len = . - msg