help with GNU as/ld on BSD arm64

[dnslc]

I am trying to test a simple Hello World program on my Raspberry Zero running NetBSD 9.1 with the GNU assembler. I am not actually sure if it is Arm64 or Armv7 or if there is a difference or if that matters.

Here is my code:

$ cat hllwrld.s
.global _start

_start: mov     r0, #1
        ldr     r1, =helloworld
        mov     r2, #13
        mov     r8, #64
        svc     0

        mov     r0, #0
        mov     r8, #93
        svc     0

.data
helloworld:     .ascii  "Hello World!\n"

$ as -o hllwrld.o hllwrld.s
$ ld -o hllwrld hllwrld.o
$ ./hllwrld
-sh: Cannot execute ELF binary ./hllwrld

Could someone tell me what arguments I need to add to ether as or ld or could you point me in the right direction.

Also in case this is relevant:

NetBSD rpi 9.1 NetBSD 9.1 (RPI) #0: Sun Oct 18 19:24:30 UTC 2020  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/evbarm/compile/RPI evbarm

Thanks.

[ibara]

You'll need a good bit of flags with ld(1) in order to get a working binary.

To see all the flags needed, try linking with:

$ cc -v -o hllwrld hllwrld.o