- binutils 2.15.90.0.3 / gcc 3.4.0 toolchain

- support in glibc and uclibc for gcc 3.4.0
- new target setup for uclibc, TARGET_OS=linux-uclibc to match the uclibc
  project's setup and modern config.sub already has support for it.

BKrev: 408dcb42JOaGKxGg3PSn6IwU4Kimfw

1 files changed, 756 insertions, 0 deletions

diff --git a/glibc/glibc-cvs/arm-memcpy.patch b/glibc/glibc-cvs/arm-memcpy.patch
index e69de29bb2..7fe0040bea 100644
--- a/glibc/glibc-cvs/arm-memcpy.patch
+++ b/glibc/glibc-cvs/arm-memcpy.patch
@@ -0,0 +1,756 @@
+--- /dev/null	2004-02-02 20:32:13.000000000 +0000
++++ sysdeps/arm/memcpy.S	2004-03-20 13:25:27.000000000 +0000
+@@ -0,0 +1,241 @@
++/*
++ *   Optimized memcpy implementation for ARM processors
++ *
++ *	Author: 	Nicolas Pitre
++ *	Created:	Dec 23, 2003
++ *	Copyright:	(C) MontaVista Software, Inc.
++ *
++ *   This file is free software; you can redistribute it and/or
++ *   modify it under the terms of the GNU Lesser General Public
++ *   License as published by the Free Software Foundation; either
++ *   version 2.1 of the License, or (at your option) any later version.
++ *
++ *   This file 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
++ *   Lesser General Public License for more details.
++ */
++
++#include <sysdep.h>
++
++
++/*
++ * Endian independent macros for shifting bytes within registers.
++ */
++#ifndef __ARMEB__
++#define pull            lsr
++#define push            lsl
++#else
++#define pull            lsl
++#define push            lsr
++#endif
++
++/*
++ * Enable data preload for architectures that support it (ARMv5 and above)
++ */
++#if defined(__ARM_ARCH_5__) || \
++    defined(__ARM_ARCH_5T__) || \
++    defined(__ARM_ARCH_5TE__)
++#define PLD(code...)	code
++#else
++#define PLD(code...)
++#endif
++
++
++/* char * memcpy (char *dst, const char *src) */
++
++ENTRY(memcpy)
++		subs	r2, r2, #4
++		stmfd	sp!, {r0, r4, lr}
++		blt	7f
++		ands	ip, r0, #3
++	PLD(	pld	[r1, #0]		)
++		bne	8f
++		ands	ip, r1, #3
++		bne	9f
++
++1:		subs	r2, r2, #4
++		blt	6f
++		subs	r2, r2, #8
++		blt	5f
++		subs	r2, r2, #16
++		blt	4f
++
++	PLD(	subs	r2, r2, #65		)
++		stmfd	sp!, {r5 - r8}
++	PLD(	blt	3f			)
++	PLD(	pld	[r1, #32]		)
++
++	PLD(	@ cache alignment		)
++	PLD(	ands	ip, r1, #31		)
++	PLD(	pld	[r1, #64]		)
++	PLD(	beq	2f			)
++	PLD(	rsb	ip, ip, #32		)
++	PLD(	cmp	r2, ip			)
++	PLD(	pld	[r1, #96]		)
++	PLD(	blt	2f			)
++	PLD(	cmp	ip, #16			)
++	PLD(	sub	r2, r2, ip		)
++	PLD(	ldmgeia	r1!, {r3 - r6}		)
++	PLD(	stmgeia	r0!, {r3 - r6}		)
++	PLD(	beq	2f			)
++	PLD(	and	ip, ip, #15		)
++	PLD(	cmp	ip, #8			)
++	PLD(	ldr	r3, [r1], #4		)
++	PLD(	ldrge	r4, [r1], #4		)
++	PLD(	ldrgt	r5, [r1], #4		)
++	PLD(	str	r3, [r0], #4		)
++	PLD(	strge	r4, [r0], #4		)
++	PLD(	strgt	r5, [r0], #4		)
++
++2:	PLD(	pld	[r1, #96]		)
++3:		ldmia	r1!, {r3 - r8, ip, lr}
++		subs	r2, r2, #32
++		stmia	r0!, {r3 - r8, ip, lr}
++		bge	2b
++	PLD(	cmn	r2, #65			)
++	PLD(	bge	3b			)
++	PLD(	add	r2, r2, #65		)
++		tst	r2, #31
++		ldmfd	sp!, {r5 - r8}
++		ldmeqfd	sp!, {r0, r4, pc}
++
++		tst	r2, #16
++4:		ldmneia	r1!, {r3, r4, ip, lr}
++		stmneia	r0!, {r3, r4, ip, lr}
++
++		tst	r2, #8
++5:		ldmneia	r1!, {r3, r4}
++		stmneia	r0!, {r3, r4}
++
++		tst	r2, #4
++6:		ldrne	r3, [r1], #4
++		strne	r3, [r0], #4
++
++7:		ands	r2, r2, #3
++		ldmeqfd	sp!, {r0, r4, pc}
++
++		cmp	r2, #2
++		ldrb	r3, [r1], #1
++		ldrgeb	r4, [r1], #1
++		ldrgtb	ip, [r1]
++		strb	r3, [r0], #1
++		strgeb	r4, [r0], #1
++		strgtb	ip, [r0]
++		ldmfd	sp!, {r0, r4, pc}
++
++8:		rsb	ip, ip, #4
++		cmp	ip, #2
++		ldrb	r3, [r1], #1
++		ldrgeb	r4, [r1], #1
++		ldrgtb	lr, [r1], #1
++		strb	r3, [r0], #1
++		strgeb	r4, [r0], #1
++		strgtb	lr, [r0], #1
++		subs	r2, r2, ip
++		blt	7b
++		ands	ip, r1, #3
++		beq	1b
++
++9:		bic	r1, r1, #3
++		cmp	ip, #2
++		ldr	lr, [r1], #4
++		beq	17f
++		bgt	18f
++
++
++		.macro	forward_copy_shift pull push
++
++		cmp	r2, #12
++	PLD(	pld	[r1, #0]		)
++		blt	15f
++		subs	r2, r2, #28
++		stmfd	sp!, {r5 - r9}
++		blt	13f
++
++	PLD(	subs	r2, r2, #97		)
++	PLD(	blt	12f			)
++	PLD(	pld	[r1, #32]		)
++
++	PLD(	@ cache alignment		)
++	PLD(	rsb	ip, r1, #36		)
++	PLD(	pld	[r1, #64]		)
++	PLD(	ands	ip, ip, #31		)
++	PLD(	pld	[r1, #96]		)
++	PLD(	beq	11f			)
++	PLD(	cmp	r2, ip			)
++	PLD(	pld	[r1, #128]		)
++	PLD(	blt	11f			)
++	PLD(	sub	r2, r2, ip		)
++10:	PLD(	mov	r3, lr, pull #\pull	)
++	PLD(	ldr	lr, [r1], #4		)
++	PLD(	subs	ip, ip, #4		)
++	PLD(	orr	r3, r3, lr, push #\push	)
++	PLD(	str	r3, [r0], #4		)
++	PLD(	bgt	10b			)
++
++11:	PLD(	pld	[r1, #128]		)
++12:		mov	r3, lr, pull #\pull
++		ldmia	r1!, {r4 - r9, ip, lr}
++		subs	r2, r2, #32
++		orr	r3, r3, r4, push #\push
++		mov	r4, r4, pull #\pull
++		orr	r4, r4, r5, push #\push
++		mov	r5, r5, pull #\pull
++		orr	r5, r5, r6, push #\push
++		mov	r6, r6, pull #\pull
++		orr	r6, r6, r7, push #\push
++		mov	r7, r7, pull #\pull
++		orr	r7, r7, r8, push #\push
++		mov	r8, r8, pull #\pull
++		orr	r8, r8, r9, push #\push
++		mov	r9, r9, pull #\pull
++		orr	r9, r9, ip, push #\push
++		mov	ip, ip, pull #\pull
++		orr	ip, ip, lr, push #\push
++		stmia	r0!, {r3 - r9, ip}
++		bge	11b
++	PLD(	cmn	r2, #97			)
++	PLD(	bge	12b			)
++	PLD(	add	r2, r2, #97		)
++		cmn	r2, #16
++		blt	14f
++13:		mov	r3, lr, pull #\pull
++		ldmia	r1!, {r4 - r6, lr}
++		sub	r2, r2, #16
++		orr	r3, r3, r4, push #\push
++		mov	r4, r4, pull #\pull
++		orr	r4, r4, r5, push #\push
++		mov	r5, r5, pull #\pull
++		orr	r5, r5, r6, push #\push
++		mov	r6, r6, pull #\pull
++		orr	r6, r6, lr, push #\push
++		stmia	r0!, {r3 - r6}
++14:		adds	r2, r2, #28
++		ldmfd	sp!, {r5 - r9}
++		blt	16f
++15:		mov	r3, lr, pull #\pull
++		ldr	lr, [r1], #4
++		subs	r2, r2, #4
++		orr	r3, r3, lr, push #\push
++		str	r3, [r0], #4
++		bge	15b
++16:
++		.endm
++
++
++		forward_copy_shift	pull=8	push=24
++		sub	r1, r1, #3
++		b	7b
++
++17:		forward_copy_shift	pull=16	push=16
++		sub	r1, r1, #2
++		b	7b
++
++18:		forward_copy_shift	pull=24	push=8
++		sub	r1, r1, #1
++		b	7b
++
++		.size	memcpy, . - memcpy
++END(memcpy)
++libc_hidden_builtin_def (memcpy)
+--- /dev/null	2004-02-02 20:32:13.000000000 +0000
++++ sysdeps/arm/memmove.S	2004-03-20 18:37:23.000000000 +0000
+@@ -0,0 +1,251 @@
++/*
++ *   Optimized memmove implementation for ARM processors
++ *
++ *	Author: 	Nicolas Pitre
++ *	Created:	Dec 23, 2003
++ *	Copyright:	(C) MontaVista Software, Inc.
++ *
++ *   This file is free software; you can redistribute it and/or
++ *   modify it under the terms of the GNU Lesser General Public
++ *   License as published by the Free Software Foundation; either
++ *   version 2.1 of the License, or (at your option) any later version.
++ *
++ *   This file 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
++ *   Lesser General Public License for more details.
++ */
++
++#include <sysdep.h>
++
++
++/*
++ * Endian independent macros for shifting bytes within registers.
++ */
++#ifndef __ARMEB__
++#define pull            lsr
++#define push            lsl
++#else
++#define pull            lsl
++#define push            lsr
++#endif
++
++/*
++ * Enable data preload for architectures that support it (ARMv5 and above)
++ */
++#if defined(__ARM_ARCH_5__) || \
++    defined(__ARM_ARCH_5T__) || \
++    defined(__ARM_ARCH_5TE__)
++#define PLD(code...)	code
++#else
++#define PLD(code...)
++#endif
++
++
++/* char * memmove (char *dst, const char *src) */
++ENTRY(memmove)
++		subs	ip, r0, r1
++		cmphi	r2, ip
++		bls	memcpy(PLT)
++
++		stmfd	sp!, {r0, r4, lr}
++		add	r1, r1, r2
++		add	r0, r0, r2
++		subs	r2, r2, #4
++		blt	25f
++		ands	ip, r0, #3
++	PLD(	pld	[r1, #-4]		)
++		bne	26f
++		ands	ip, r1, #3
++		bne	27f
++
++19:		subs	r2, r2, #4
++		blt	24f
++		subs	r2, r2, #8
++		blt	23f
++		subs	r2, r2, #16
++		blt	22f
++
++	PLD(	pld	[r1, #-32]		)
++	PLD(	subs	r2, r2, #96		)
++		stmfd	sp!, {r5 - r8}
++	PLD(	blt	21f			)
++
++	PLD(	@ cache alignment		)
++	PLD(	ands	ip, r1, #31		)
++	PLD(	pld	[r1, #-64]		)
++	PLD(	beq	20f			)
++	PLD(	cmp	r2, ip			)
++	PLD(	pld	[r1, #-96]		)
++	PLD(	blt	20f			)
++	PLD(	cmp	ip, #16			)
++	PLD(	sub	r2, r2, ip		)
++	PLD(	ldmgedb	r1!, {r3 - r6}		)
++	PLD(	stmgedb	r0!, {r3 - r6}		)
++	PLD(	beq	20f			)
++	PLD(	and	ip, ip, #15		)
++	PLD(	cmp	ip, #8			)
++	PLD(	ldr	r3, [r1, #-4]!		)
++	PLD(	ldrge	r4, [r1, #-4]!		)
++	PLD(	ldrgt	r5, [r1, #-4]!		)
++	PLD(	str	r3, [r0, #-4]!		)
++	PLD(	strge	r4, [r0, #-4]!		)
++	PLD(	strgt	r5, [r0, #-4]!		)
++
++20:	PLD(	pld	[r1, #-96]		)
++	PLD(	pld	[r1, #-128]		)
++21:		ldmdb	r1!, {r3, r4, ip, lr}
++		subs	r2, r2, #32
++		stmdb	r0!, {r3, r4, ip, lr}
++		ldmdb	r1!, {r3, r4, ip, lr}
++		stmgedb	r0!, {r3, r4, ip, lr}
++		ldmgedb	r1!, {r3, r4, ip, lr}
++		stmgedb	r0!, {r3, r4, ip, lr}
++		ldmgedb	r1!, {r3, r4, ip, lr}
++		subges	r2, r2, #32
++		stmdb	r0!, {r3, r4, ip, lr}
++		bge	20b
++	PLD(	cmn	r2, #96			)
++	PLD(	bge	21b			)
++	PLD(	add	r2, r2, #96		)
++		tst	r2, #31
++		ldmfd	sp!, {r5 - r8}
++		ldmeqfd	sp!, {r0, r4, pc}
++
++		tst	r2, #16
++22:		ldmnedb	r1!, {r3, r4, ip, lr}
++		stmnedb	r0!, {r3, r4, ip, lr}
++
++		tst	r2, #8
++23:		ldmnedb	r1!, {r3, r4}
++		stmnedb	r0!, {r3, r4}
++
++		tst	r2, #4
++24:		ldrne	r3, [r1, #-4]!
++		strne	r3, [r0, #-4]!
++
++25:		ands	r2, r2, #3
++		ldmeqfd	sp!, {r0, r4, pc}
++
++		cmp	r2, #2
++		ldrb	r3, [r1, #-1]
++		ldrgeb	r4, [r1, #-2]
++		ldrgtb	ip, [r1, #-3]
++		strb	r3, [r0, #-1]
++		strgeb	r4, [r0, #-2]
++		strgtb	ip, [r0, #-3]
++		ldmfd	sp!, {r0, r4, pc}
++
++26:		cmp	ip, #2
++		ldrb	r3, [r1, #-1]!
++		ldrgeb	r4, [r1, #-1]!
++		ldrgtb	lr, [r1, #-1]!
++		strb	r3, [r0, #-1]!
++		strgeb	r4, [r0, #-1]!
++		strgtb	lr, [r0, #-1]!
++		subs	r2, r2, ip
++		blt	25b
++		ands	ip, r1, #3
++		beq	19b
++
++27:		bic	r1, r1, #3
++		cmp	ip, #2
++		ldr	r3, [r1]
++		beq	35f
++		blt	36f
++
++
++		.macro	backward_copy_shift push pull
++
++		cmp	r2, #12
++	PLD(	pld	[r1, #-4]		)
++		blt	33f
++		subs	r2, r2, #28
++		stmfd	sp!, {r5 - r9}
++		blt	31f
++
++	PLD(	subs	r2, r2, #96		)
++	PLD(	pld	[r1, #-32]		)
++	PLD(	blt	30f			)
++	PLD(	pld	[r1, #-64]		)
++
++	PLD(	@ cache alignment		)
++	PLD(	ands	ip, r1, #31		)
++	PLD(	pld	[r1, #-96]		)
++	PLD(	beq	29f			)
++	PLD(	cmp	r2, ip			)
++	PLD(	pld	[r1, #-128]		)
++	PLD(	blt	29f			)
++	PLD(	sub	r2, r2, ip		)
++28:	PLD(	mov	r4, r3, push #\push	)
++	PLD(	ldr	r3, [r1, #-4]!		)
++	PLD(	subs	ip, ip, #4		)
++	PLD(	orr	r4, r4, r3, pull #\pull	)
++	PLD(	str	r4, [r0, #-4]!		)
++	PLD(	bgt	28b			)
++
++29:	PLD(	pld	[r1, #-128]		)
++30:		mov	lr, r3, push #\push
++		ldmdb	r1!, {r3 - r9, ip}
++		subs	r2, r2, #32
++		orr	lr, lr, ip, pull #\pull
++		mov	ip, ip, push #\push
++		orr	ip, ip, r9, pull #\pull
++		mov	r9, r9, push #\push
++		orr	r9, r9, r8, pull #\pull
++		mov	r8, r8, push #\push
++		orr	r8, r8, r7, pull #\pull
++		mov	r7, r7, push #\push
++		orr	r7, r7, r6, pull #\pull
++		mov	r6, r6, push #\push
++		orr	r6, r6, r5, pull #\pull
++		mov	r5, r5, push #\push
++		orr	r5, r5, r4, pull #\pull
++		mov	r4, r4, push #\push
++		orr	r4, r4, r3, pull #\pull
++		stmdb	r0!, {r4 - r9, ip, lr}
++		bge	29b
++	PLD(	cmn	r2, #96			)
++	PLD(	bge	30b			)
++	PLD(	add	r2, r2, #96		)
++		cmn	r2, #16
++		blt	32f
++31:		mov	r7, r3, push #\push
++		ldmdb	r1!, {r3 - r6}
++		sub	r2, r2, #16
++		orr	r7, r7, r6, pull #\pull
++		mov	r6, r6, push #\push
++		orr	r6, r6, r5, pull #\pull
++		mov	r5, r5, push #\push
++		orr	r5, r5, r4, pull #\pull
++		mov	r4, r4, push #\push
++		orr	r4, r4, r3, pull #\pull
++		stmdb	r0!, {r4 - r7}
++32:		adds	r2, r2, #28
++		ldmfd	sp!, {r5 - r9}
++		blt	34f
++33:		mov	r4, r3, push #\push
++		ldr	r3, [r1, #-4]!
++		subs	r2, r2, #4
++		orr	r4, r4, r3, pull #\pull
++		str	r4, [r0, #-4]!
++		bge	33b
++34:
++		.endm
++
++
++		backward_copy_shift	push=8	pull=24
++		add	r1, r1, #3
++		b	25b
++
++35:		backward_copy_shift	push=16	pull=16
++		add	r1, r1, #2
++		b	25b
++
++36:		backward_copy_shift	push=24	pull=8
++		add	r1, r1, #1
++		b	25b
++
++		.size	memmove, . - memmove
++END(memmove)
++libc_hidden_builtin_def (memmove)
+--- /dev/null	2004-02-02 20:32:13.000000000 +0000
++++ sysdeps/arm/bcopy.S	2004-03-20 18:37:48.000000000 +0000
+@@ -0,0 +1,255 @@
++/*
++ *   Optimized memmove implementation for ARM processors
++ *
++ *	Author: 	Nicolas Pitre
++ *	Created:	Dec 23, 2003
++ *	Copyright:	(C) MontaVista Software, Inc.
++ *
++ *   This file is free software; you can redistribute it and/or
++ *   modify it under the terms of the GNU Lesser General Public
++ *   License as published by the Free Software Foundation; either
++ *   version 2.1 of the License, or (at your option) any later version.
++ *
++ *   This file 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
++ *   Lesser General Public License for more details.
++ */
++
++#include <sysdep.h>
++
++
++/*
++ * Endian independent macros for shifting bytes within registers.
++ */
++#ifndef __ARMEB__
++#define pull            lsr
++#define push            lsl
++#else
++#define pull            lsl
++#define push            lsr
++#endif
++
++/*
++ * Enable data preload for architectures that support it (ARMv5 and above)
++ */
++#if defined(__ARM_ARCH_5__) || \
++    defined(__ARM_ARCH_5T__) || \
++    defined(__ARM_ARCH_5TE__)
++#define PLD(code...)	code
++#else
++#define PLD(code...)
++#endif
++
++dst		.req	r1
++src		.req	r0
++
++/* void *bcopy (const char *src, char *dst, size_t size) */
++ENTRY(bcopy)
++		subs	ip, dst, src
++		cmphi	r2, ip
++		movls	r3, r0
++		movls	r0, r1
++		movls	r1, r3
++		bls	memcpy(PLT)
++
++		stmfd	sp!, {r4, lr}
++		add	src, src, r2
++		add	dst, dst, r2
++		subs	r2, r2, #4
++		blt	25f
++		ands	ip, dst, #3
++	PLD(	pld	[src, #-4]		)
++		bne	26f
++		ands	ip, src, #3
++		bne	27f
++
++19:		subs	r2, r2, #4
++		blt	24f
++		subs	r2, r2, #8
++		blt	23f
++		subs	r2, r2, #16
++		blt	22f
++
++	PLD(	pld	[src, #-32]		)
++	PLD(	subs	r2, r2, #96		)
++		stmfd	sp!, {r5 - r8}
++	PLD(	blt	21f			)
++
++	PLD(	@ cache alignment		)
++	PLD(	ands	ip, src, #31		)
++	PLD(	pld	[src, #-64]		)
++	PLD(	beq	20f			)
++	PLD(	cmp	r2, ip			)
++	PLD(	pld	[src, #-96]		)
++	PLD(	blt	20f			)
++	PLD(	cmp	ip, #16			)
++	PLD(	sub	r2, r2, ip		)
++	PLD(	ldmgedb	src!, {r3 - r6}		)
++	PLD(	stmgedb	dst!, {r3 - r6}		)
++	PLD(	beq	20f			)
++	PLD(	and	ip, ip, #15		)
++	PLD(	cmp	ip, #8			)
++	PLD(	ldr	r3, [src, #-4]!		)
++	PLD(	ldrge	r4, [src, #-4]!		)
++	PLD(	ldrgt	r5, [src, #-4]!		)
++	PLD(	str	r3, [dst, #-4]!		)
++	PLD(	strge	r4, [dst, #-4]!		)
++	PLD(	strgt	r5, [dst, #-4]!		)
++
++20:	PLD(	pld	[src, #-96]		)
++	PLD(	pld	[src, #-128]		)
++21:		ldmdb	src!, {r3, r4, ip, lr}
++		subs	r2, r2, #32
++		stmdb	dst!, {r3, r4, ip, lr}
++		ldmdb	src!, {r3, r4, ip, lr}
++		stmgedb	dst!, {r3, r4, ip, lr}
++		ldmgedb	src!, {r3, r4, ip, lr}
++		stmgedb	dst!, {r3, r4, ip, lr}
++		ldmgedb	src!, {r3, r4, ip, lr}
++		subges	r2, r2, #32
++		stmdb	dst!, {r3, r4, ip, lr}
++		bge	20b
++	PLD(	cmn	r2, #96			)
++	PLD(	bge	21b			)
++	PLD(	add	r2, r2, #96		)
++		tst	r2, #31
++		ldmfd	sp!, {r5 - r8}
++		ldmeqfd	sp!, {r4, pc}
++
++		tst	r2, #16
++22:		ldmnedb	src!, {r3, r4, ip, lr}
++		stmnedb	dst!, {r3, r4, ip, lr}
++
++		tst	r2, #8
++23:		ldmnedb	src!, {r3, r4}
++		stmnedb	dst!, {r3, r4}
++
++		tst	r2, #4
++24:		ldrne	r3, [src, #-4]!
++		strne	r3, [dst, #-4]!
++
++25:		ands	r2, r2, #3
++		ldmeqfd	sp!, {dst, r4, pc}
++
++		cmp	r2, #2
++		ldrb	r3, [src, #-1]
++		ldrgeb	r4, [src, #-2]
++		ldrgtb	ip, [src, #-3]
++		strb	r3, [dst, #-1]
++		strgeb	r4, [dst, #-2]
++		strgtb	ip, [dst, #-3]
++		ldmfd	sp!, {dst, r4, pc}
++
++26:		cmp	ip, #2
++		ldrb	r3, [src, #-1]!
++		ldrgeb	r4, [src, #-1]!
++		ldrgtb	lr, [src, #-1]!
++		strb	r3, [dst, #-1]!
++		strgeb	r4, [dst, #-1]!
++		strgtb	lr, [dst, #-1]!
++		subs	r2, r2, ip
++		blt	25b
++		ands	ip, src, #3
++		beq	19b
++
++27:		bic	src, src, #3
++		cmp	ip, #2
++		ldr	r3, [src]
++		beq	35f
++		blt	36f
++
++
++		.macro	backward_copy_shift push pull
++
++		cmp	r2, #12
++	PLD(	pld	[src, #-4]		)
++		blt	33f
++		subs	r2, r2, #28
++		stmfd	sp!, {r5 - r9}
++		blt	31f
++
++	PLD(	subs	r2, r2, #96		)
++	PLD(	pld	[src, #-32]		)
++	PLD(	blt	30f			)
++	PLD(	pld	[src, #-64]		)
++
++	PLD(	@ cache alignment		)
++	PLD(	ands	ip, src, #31		)
++	PLD(	pld	[src, #-96]		)
++	PLD(	beq	29f			)
++	PLD(	cmp	r2, ip			)
++	PLD(	pld	[src, #-128]		)
++	PLD(	blt	29f			)
++	PLD(	sub	r2, r2, ip		)
++28:	PLD(	mov	r4, r3, push #\push	)
++	PLD(	ldr	r3, [src, #-4]!		)
++	PLD(	subs	ip, ip, #4		)
++	PLD(	orr	r4, r4, r3, pull #\pull	)
++	PLD(	str	r4, [dst, #-4]!		)
++	PLD(	bgt	28b			)
++
++29:	PLD(	pld	[src, #-128]		)
++30:		mov	lr, r3, push #\push
++		ldmdb	src!, {r3 - r9, ip}
++		subs	r2, r2, #32
++		orr	lr, lr, ip, pull #\pull
++		mov	ip, ip, push #\push
++		orr	ip, ip, r9, pull #\pull
++		mov	r9, r9, push #\push
++		orr	r9, r9, r8, pull #\pull
++		mov	r8, r8, push #\push
++		orr	r8, r8, r7, pull #\pull
++		mov	r7, r7, push #\push
++		orr	r7, r7, r6, pull #\pull
++		mov	r6, r6, push #\push
++		orr	r6, r6, r5, pull #\pull
++		mov	r5, r5, push #\push
++		orr	r5, r5, r4, pull #\pull
++		mov	r4, r4, push #\push
++		orr	r4, r4, r3, pull #\pull
++		stmdb	dst!, {r4 - r9, ip, lr}
++		bge	29b
++	PLD(	cmn	r2, #96			)
++	PLD(	bge	30b			)
++	PLD(	add	r2, r2, #96		)
++		cmn	r2, #16
++		blt	32f
++31:		mov	r7, r3, push #\push
++		ldmdb	src!, {r3 - r6}
++		sub	r2, r2, #16
++		orr	r7, r7, r6, pull #\pull
++		mov	r6, r6, push #\push
++		orr	r6, r6, r5, pull #\pull
++		mov	r5, r5, push #\push
++		orr	r5, r5, r4, pull #\pull
++		mov	r4, r4, push #\push
++		orr	r4, r4, r3, pull #\pull
++		stmdb	dst!, {r4 - r7}
++32:		adds	r2, r2, #28
++		ldmfd	sp!, {r5 - r9}
++		blt	34f
++33:		mov	r4, r3, push #\push
++		ldr	r3, [src, #-4]!
++		subs	r2, r2, #4
++		orr	r4, r4, r3, pull #\pull
++		str	r4, [dst, #-4]!
++		bge	33b
++34:
++		.endm
++
++
++		backward_copy_shift	push=8	pull=24
++		add	src, src, #3
++		b	25b
++
++35:		backward_copy_shift	push=16	pull=16
++		add	src, src, #2
++		b	25b
++
++36:		backward_copy_shift	push=24	pull=8
++		add	src, src, #1
++		b	25b
++
++		.size	bcopy, . - bcopy
++END(bcopy)