caos-with-snake/user/crt.c

#include "../syscall.h"

int main();

int syscall(int call, uintptr_t arg) {
    asm volatile("int $0x84" : "+a"(call) : "b"(arg));
    return call;
}

_Noreturn void _exit(int exit_status) {
    syscall(SYS_exit, exit_status);
    __builtin_unreachable();
}

void _start() { _exit(main()); }