mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
51be24c351
add proper ENDPROC() to close out assembly functions so size/type is set properly in the final ELF image Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
71 lines
1.5 KiB
ArmAsm
71 lines
1.5 KiB
ArmAsm
/*
|
|
* File: arch/blackfin/lib/memchr.S
|
|
* Based on:
|
|
* Author:
|
|
*
|
|
* Created:
|
|
* Description:
|
|
*
|
|
* Modified:
|
|
* Copyright 2004-2006 Analog Devices Inc.
|
|
*
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see the file COPYING, or write
|
|
* to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
/* void *memchr(const void *s, int c, size_t n);
|
|
* R0 = address (s)
|
|
* R1 = sought byte (c)
|
|
* R2 = count (n)
|
|
*
|
|
* Returns pointer to located character.
|
|
*/
|
|
|
|
.text
|
|
|
|
.align 2
|
|
|
|
ENTRY(_memchr)
|
|
P0 = R0; /* P0 = address */
|
|
P2 = R2; /* P2 = count */
|
|
R1 = R1.B(Z);
|
|
CC = R2 == 0;
|
|
IF CC JUMP .Lfailed;
|
|
|
|
.Lbytes:
|
|
LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2;
|
|
|
|
.Lbyte_loop_s:
|
|
R3 = B[P0++](Z);
|
|
CC = R3 == R1;
|
|
IF CC JUMP .Lfound;
|
|
.Lbyte_loop_e:
|
|
NOP;
|
|
|
|
.Lfailed:
|
|
R0=0;
|
|
RTS;
|
|
|
|
.Lfound:
|
|
R0 = P0;
|
|
R0 += -1;
|
|
RTS;
|
|
|
|
ENDPROC(_memchr)
|