linux/arch/arm/lib/io-readsb.S
Nicolas Pitre a9c4814d8d [ARM] 3151/1: make various assembly local labels actually local (io-*.S)
Patch from Nicolas Pitre

For assembly labels to actually be local they must start with ".L" and
not only "." otherwise they still remain visible in the final link and
clutter kallsyms needlessly, and possibly make for unclear symbolic
backtrace. This patch simply inserts a"L" where appropriate. The code
itself is unchanged.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-11 21:51:48 +00:00

123 lines
2.5 KiB
ArmAsm

/*
* linux/arch/arm/lib/io-readsb.S
*
* Copyright (C) 1995-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.Linsb_align: rsb ip, ip, #4
cmp ip, r2
movgt ip, r2
cmp ip, #2
ldrb r3, [r0]
strb r3, [r1], #1
ldrgeb r3, [r0]
strgeb r3, [r1], #1
ldrgtb r3, [r0]
strgtb r3, [r1], #1
subs r2, r2, ip
bne .Linsb_aligned
ENTRY(__raw_readsb)
teq r2, #0 @ do we have to check for the zero len?
moveq pc, lr
ands ip, r1, #3
bne .Linsb_align
.Linsb_aligned: stmfd sp!, {r4 - r6, lr}
subs r2, r2, #16
bmi .Linsb_no_16
.Linsb_16_lp: ldrb r3, [r0]
ldrb r4, [r0]
ldrb r5, [r0]
mov r3, r3, put_byte_0
ldrb r6, [r0]
orr r3, r3, r4, put_byte_1
ldrb r4, [r0]
orr r3, r3, r5, put_byte_2
ldrb r5, [r0]
orr r3, r3, r6, put_byte_3
ldrb r6, [r0]
mov r4, r4, put_byte_0
ldrb ip, [r0]
orr r4, r4, r5, put_byte_1
ldrb r5, [r0]
orr r4, r4, r6, put_byte_2
ldrb r6, [r0]
orr r4, r4, ip, put_byte_3
ldrb ip, [r0]
mov r5, r5, put_byte_0
ldrb lr, [r0]
orr r5, r5, r6, put_byte_1
ldrb r6, [r0]
orr r5, r5, ip, put_byte_2
ldrb ip, [r0]
orr r5, r5, lr, put_byte_3
ldrb lr, [r0]
mov r6, r6, put_byte_0
orr r6, r6, ip, put_byte_1
ldrb ip, [r0]
orr r6, r6, lr, put_byte_2
orr r6, r6, ip, put_byte_3
stmia r1!, {r3 - r6}
subs r2, r2, #16
bpl .Linsb_16_lp
tst r2, #15
LOADREGS(eqfd, sp!, {r4 - r6, pc})
.Linsb_no_16: tst r2, #8
beq .Linsb_no_8
ldrb r3, [r0]
ldrb r4, [r0]
ldrb r5, [r0]
mov r3, r3, put_byte_0
ldrb r6, [r0]
orr r3, r3, r4, put_byte_1
ldrb r4, [r0]
orr r3, r3, r5, put_byte_2
ldrb r5, [r0]
orr r3, r3, r6, put_byte_3
ldrb r6, [r0]
mov r4, r4, put_byte_0
ldrb ip, [r0]
orr r4, r4, r5, put_byte_1
orr r4, r4, r6, put_byte_2
orr r4, r4, ip, put_byte_3
stmia r1!, {r3, r4}
.Linsb_no_8: tst r2, #4
beq .Linsb_no_4
ldrb r3, [r0]
ldrb r4, [r0]
ldrb r5, [r0]
ldrb r6, [r0]
mov r3, r3, put_byte_0
orr r3, r3, r4, put_byte_1
orr r3, r3, r5, put_byte_2
orr r3, r3, r6, put_byte_3
str r3, [r1], #4
.Linsb_no_4: ands r2, r2, #3
LOADREGS(eqfd, sp!, {r4 - r6, pc})
cmp r2, #2
ldrb r3, [r0]
strb r3, [r1], #1
ldrgeb r3, [r0]
strgeb r3, [r1], #1
ldrgtb r3, [r0]
strgtb r3, [r1]
LOADREGS(fd, sp!, {r4 - r6, pc})