Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933095AbYB2QFS (ORCPT ); Fri, 29 Feb 2008 11:05:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759866AbYB2QFA (ORCPT ); Fri, 29 Feb 2008 11:05:00 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.123]:51598 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759449AbYB2QFA (ORCPT ); Fri, 29 Feb 2008 11:05:00 -0500 Subject: [PATCH] add strncmp to PowerPC From: Steven Rostedt To: paulus@samba.org, linuxppc-dev@ozlabs.org Cc: LKML Content-Type: text/plain Date: Fri, 29 Feb 2008 11:04:57 -0500 Message-Id: <1204301097.14759.6.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2723 Lines: 74 strncmp is defined in assembly for bootup, but it is not defined in the normal running kernel. This patch takes the strncmp code from the bootup and copies it to the kernel proper. Signed-off-by: Steven Rostedt --- arch/powerpc/kernel/ppc_ksyms.c | 1 + arch/powerpc/lib/string.S | 12 ++++++++++++ include/asm-powerpc/string.h | 2 ++ 3 files changed, 15 insertions(+) Index: linux-sched-devel.git/arch/powerpc/kernel/ppc_ksyms.c =================================================================== --- linux-sched-devel.git.orig/arch/powerpc/kernel/ppc_ksyms.c 2008-02-27 14:01:38.000000000 -0800 +++ linux-sched-devel.git/arch/powerpc/kernel/ppc_ksyms.c 2008-02-29 07:24:22.000000000 -0800 @@ -78,6 +78,7 @@ EXPORT_SYMBOL(strncpy); EXPORT_SYMBOL(strcat); EXPORT_SYMBOL(strlen); EXPORT_SYMBOL(strcmp); +EXPORT_SYMBOL(strncmp); EXPORT_SYMBOL(csum_partial); EXPORT_SYMBOL(csum_partial_copy_generic); Index: linux-sched-devel.git/arch/powerpc/lib/string.S =================================================================== --- linux-sched-devel.git.orig/arch/powerpc/lib/string.S 2008-02-27 14:01:38.000000000 -0800 +++ linux-sched-devel.git/arch/powerpc/lib/string.S 2008-02-29 07:24:22.000000000 -0800 @@ -75,6 +75,18 @@ _GLOBAL(strcmp) beq 1b blr +_GLOBAL(strncmp) + mtctr r5 + addi r5,r3,-1 + addi r4,r4,-1 +1: lbzu r3,1(r5) + cmpwi 1,r3,0 + lbzu r0,1(r4) + subf. r3,r0,r3 + beqlr 1 + bdnzt eq,1b + blr + _GLOBAL(strlen) addi r4,r3,-1 1: lbzu r0,1(r4) Index: linux-sched-devel.git/include/asm-powerpc/string.h =================================================================== --- linux-sched-devel.git.orig/include/asm-powerpc/string.h 2008-02-27 14:01:58.000000000 -0800 +++ linux-sched-devel.git/include/asm-powerpc/string.h 2008-02-29 07:24:22.000000000 -0800 @@ -7,6 +7,7 @@ #define __HAVE_ARCH_STRNCPY #define __HAVE_ARCH_STRLEN #define __HAVE_ARCH_STRCMP +#define __HAVE_ARCH_STRNCMP #define __HAVE_ARCH_STRCAT #define __HAVE_ARCH_MEMSET #define __HAVE_ARCH_MEMCPY @@ -18,6 +19,7 @@ extern char * strcpy(char *,const char * extern char * strncpy(char *,const char *, __kernel_size_t); extern __kernel_size_t strlen(const char *); extern int strcmp(const char *,const char *); +extern int strncmp(const char *,const char *,__kernel_size_t); extern char * strcat(char *, const char *); extern void * memset(void *,int,__kernel_size_t); extern void * memcpy(void *,const void *,__kernel_size_t); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/