.global exit
exit:
mov %r7, #1
svc #0
bx %lr

.global write
write:
mov %r7, #4
svc #0
bx %lr

.global open
open:
mov %r7, #5
svc #0
bx %lr

.global execve
execve:
mov %r7, #11
svc #0
bx %lr

.global setuid
setuid:
mov %r7, #23
svc #0
bx %lr