1/* 2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 .globl rom_lib_init 8 .extern __DATA_RAM_START__, __DATA_ROM_START__, __DATA_SIZE__ 9 .extern memset, memcpy 10 11rom_lib_init: 12 cmp w0, #1 13 mov w0, #0 14 b.le 1f 15 ret 16 171: stp x29, x30, [sp, #-16]! 18 adrp x0, __DATA_RAM_START__ 19 ldr x1,= __DATA_ROM_START__ 20 ldr x2, =__DATA_SIZE__ 21 bl memcpy 22 23 ldr x0, =__BSS_START__ 24 mov x1, #0 25 ldr x2, =__BSS_SIZE__ 26 bl memset 27 ldp x29, x30, [sp], #16 28 29 mov w0, #1 30 ret 31