1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * String handling functions for PowerPC. 4 * 5 * Copyright (C) 1996 Paul Mackerras. 6 */ 7#include <linux/export.h> 8#include <asm/ppc_asm.h> 9#include <asm/cache.h> 10 11 .text 12 13_GLOBAL(strncmp) 14 PPC_LCMPI 0,r5,0 15 beq- 2f 16 mtctr r5 17 addi r5,r3,-1 18 addi r4,r4,-1 19 .balign IFETCH_ALIGN_BYTES 201: lbzu r3,1(r5) 21 cmpwi 1,r3,0 22 lbzu r0,1(r4) 23 subf. r3,r0,r3 24 beqlr 1 25 bdnzt eq,1b 26 blr 272: li r3,0 28 blr 29EXPORT_SYMBOL(strncmp) 30 31_GLOBAL(memchr) 32 PPC_LCMPI 0,r5,0 33 beq- 2f 34 mtctr r5 35 addi r3,r3,-1 36 .balign IFETCH_ALIGN_BYTES 371: lbzu r0,1(r3) 38 cmpw 0,r0,r4 39 bdnzf 2,1b 40 beqlr 412: li r3,0 42 blr 43EXPORT_SYMBOL(memchr) 44