[thirdparty/gcc.git] / gcc / config / rs6000 / eabi.asm

/*
 * Special support for eabi and SVR4
 *
 *   Copyright (C) 1995, 1996, 1998, 2000, 2001, 2008, 2009
 *   Free Software Foundation, Inc.
 *   Written By Michael Meissner
 * 
 * This file 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 3, 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
 * General Public License for more details.
 * 
 * Under Section 7 of GPL version 3, you are granted additional
 * permissions described in the GCC Runtime Library Exception, version
 * 3.1, as published by the Free Software Foundation.
 *
 * You should have received a copy of the GNU General Public License and
 * a copy of the GCC Runtime Library Exception along with this program;
 * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 * <http://www.gnu.org/licenses/>.
 */ 

/* Do any initializations needed for the eabi environment */

	.section ".text"
	#include "ppc-asm.h"

#ifndef __powerpc64__

	 .section ".got2","aw"
	.align	2
.LCTOC1 = . /* +32768 */

/* Table of addresses */
.Ltable = .-.LCTOC1
	.long	.LCTOC1				/* address we are really at */

.Lsda = .-.LCTOC1
	.long	_SDA_BASE_			/* address of the first small data area */

.Lsdas = .-.LCTOC1
	.long	__SDATA_START__			/* start of .sdata/.sbss section */

.Lsdae = .-.LCTOC1
	.long	__SBSS_END__			/* end of .sdata/.sbss section */

.Lsda2 = .-.LCTOC1
	.long	_SDA2_BASE_			/* address of the second small data area */

.Lsda2s = .-.LCTOC1
	.long	__SDATA2_START__		/* start of .sdata2/.sbss2 section */

.Lsda2e = .-.LCTOC1
	.long	__SBSS2_END__			/* end of .sdata2/.sbss2 section */

#ifdef _RELOCATABLE
.Lgots = .-.LCTOC1
	.long	__GOT_START__			/* Global offset table start */

.Lgotm1 = .-.LCTOC1
	.long	_GLOBAL_OFFSET_TABLE_-4		/* end of GOT ptrs before BLCL + 3 reserved words */

.Lgotm2 = .-.LCTOC1
	.long	_GLOBAL_OFFSET_TABLE_+12	/* start of GOT ptrs after BLCL + 3 reserved words */

.Lgote = .-.LCTOC1
	.long	__GOT_END__			/* Global offset table end */

.Lgot2s = .-.LCTOC1
	.long	__GOT2_START__			/* -mrelocatable GOT pointers start */

.Lgot2e = .-.LCTOC1
	.long	__GOT2_END__			/* -mrelocatable GOT pointers end */

.Lfixups = .-.LCTOC1
	.long	__FIXUP_START__			/* start of .fixup section */

.Lfixupe = .-.LCTOC1
	.long	__FIXUP_END__			/* end of .fixup section */

.Lctors = .-.LCTOC1
	.long	__CTOR_LIST__			/* start of .ctor section */

.Lctore = .-.LCTOC1
	.long	__CTOR_END__			/* end of .ctor section */

.Ldtors = .-.LCTOC1
	.long	__DTOR_LIST__			/* start of .dtor section */

.Ldtore = .-.LCTOC1
	.long	__DTOR_END__			/* end of .dtor section */

.Lexcepts = .-.LCTOC1
	.long	__EXCEPT_START__		/* start of .gcc_except_table section */

.Lexcepte = .-.LCTOC1
	.long	__EXCEPT_END__			/* end of .gcc_except_table section */

.Linit = .-.LCTOC1
	.long	.Linit_p			/* address of variable to say we've been called */

	.text
	.align	2
.Lptr:
	.long	.LCTOC1-.Laddr			/* PC relative pointer to .got2 */
#endif

	.data
	.align	2
.Linit_p:
	.long	0

	.text

FUNC_START(__eabi)

/* Eliminate -mrelocatable code if not -mrelocatable, so that this file can
   be assembled with other assemblers than GAS.  */

#ifndef _RELOCATABLE
	addis	10,0,.Linit_p@ha		/* init flag */
	addis	11,0,.LCTOC1@ha			/* load address of .LCTOC1 */
	lwz	9,.Linit_p@l(10)		/* init flag */
	addi	11,11,.LCTOC1@l
	cmplwi	2,9,0				/* init flag != 0? */
	bnelr	2				/* return now, if we've been called already */
	stw	1,.Linit_p@l(10)		/* store a nonzero value in the done flag */

#else /* -mrelocatable */
	mflr	0
	bl	.Laddr				/* get current address */
.Laddr:
	mflr	12				/* real address of .Laddr */
	lwz	11,(.Lptr-.Laddr)(12)		/* linker generated address of .LCTOC1 */
	add	11,11,12			/* correct to real pointer */
	lwz	12,.Ltable(11)			/* get linker's idea of where .Laddr is */
	lwz	10,.Linit(11)			/* address of init flag */
	subf.	12,12,11			/* calculate difference */
	lwzx	9,10,12				/* done flag */
	cmplwi	2,9,0				/* init flag != 0? */
	mtlr	0				/* restore in case branch was taken */
	bnelr	2				/* return now, if we've been called already */
	stwx	1,10,12				/* store a nonzero value in the done flag */
	beq+	0,.Lsdata			/* skip if we don't need to relocate */

/* We need to relocate the .got2 pointers.  */

	lwz	3,.Lgot2s(11)			/* GOT2 pointers start */
	lwz	4,.Lgot2e(11)			/* GOT2 pointers end */
	add	3,12,3				/* adjust pointers */
	add	4,12,4
	bl	FUNC_NAME(__eabi_convert)	/* convert pointers in .got2 section */

/* Fixup the .ctor section for static constructors */

	lwz	3,.Lctors(11)			/* constructors pointers start */
	lwz	4,.Lctore(11)			/* constructors pointers end */
	bl	FUNC_NAME(__eabi_convert)	/* convert constructors */

/* Fixup the .dtor section for static destructors */

	lwz	3,.Ldtors(11)			/* destructors pointers start */
	lwz	4,.Ldtore(11)			/* destructors pointers end */
	bl	FUNC_NAME(__eabi_convert)	/* convert destructors */

/* Fixup the .gcc_except_table section for G++ exceptions */

	lwz	3,.Lexcepts(11)			/* exception table pointers start */
	lwz	4,.Lexcepte(11)			/* exception table pointers end */
	bl	FUNC_NAME(__eabi_convert)	/* convert exceptions */

/* Fixup the addresses in the GOT below _GLOBAL_OFFSET_TABLE_-4 */

	lwz	3,.Lgots(11)			/* GOT table pointers start */
	lwz	4,.Lgotm1(11)			/* GOT table pointers below _GLOBAL_OFFSET_TABLE-4 */
	bl	FUNC_NAME(__eabi_convert)	/* convert lower GOT */

/* Fixup the addresses in the GOT above _GLOBAL_OFFSET_TABLE_+12 */

	lwz	3,.Lgotm2(11)			/* GOT table pointers above _GLOBAL_OFFSET_TABLE+12 */
	lwz	4,.Lgote(11)			/* GOT table pointers end */
	bl	FUNC_NAME(__eabi_convert)	/* convert lower GOT */

/* Fixup any user initialized pointers now (the compiler drops pointers to */
/* each of the relocs that it does in the .fixup section).  */

.Lfix:
	lwz	3,.Lfixups(11)			/* fixup pointers start */
	lwz	4,.Lfixupe(11)			/* fixup pointers end */
	bl	FUNC_NAME(__eabi_uconvert)	/* convert user initialized pointers */

.Lsdata:
	mtlr	0				/* restore link register */
#endif /* _RELOCATABLE */

/* Only load up register 13 if there is a .sdata and/or .sbss section */
	lwz	3,.Lsdas(11)			/* start of .sdata/.sbss section */
	lwz	4,.Lsdae(11)			/* end of .sdata/.sbss section */
	cmpw	1,3,4				/* .sdata/.sbss section non-empty? */
	beq-	1,.Lsda2l			/* skip loading r13 */

	lwz	13,.Lsda(11)			/* load r13 with _SDA_BASE_ address */

/* Only load up register 2 if there is a .sdata2 and/or .sbss2 section */

.Lsda2l:	
	lwz	3,.Lsda2s(11)			/* start of .sdata/.sbss section */
	lwz	4,.Lsda2e(11)			/* end of .sdata/.sbss section */
	cmpw	1,3,4				/* .sdata/.sbss section non-empty? */
	beq+	1,.Ldone			/* skip loading r2 */

	lwz	2,.Lsda2(11)			/* load r2 with _SDA2_BASE_ address */

/* Done adjusting pointers, return by way of doing the C++ global constructors.  */

.Ldone:
	b	FUNC_NAME(__init)	/* do any C++ global constructors (which returns to caller) */
FUNC_END(__eabi)

/* Special subroutine to convert a bunch of pointers directly.
   r0		has original link register
   r3		has low pointer to convert
   r4		has high pointer to convert
   r5 .. r10	are scratch registers
   r11		has the address of .LCTOC1 in it.
   r12		has the value to add to each pointer
   r13 .. r31	are unchanged */
#ifdef _RELOCATABLE
FUNC_START(__eabi_convert)
        cmplw	1,3,4				/* any pointers to convert? */
        subf	5,3,4				/* calculate number of words to convert */
        bclr	4,4				/* return if no pointers */

        srawi	5,5,2
	addi	3,3,-4				/* start-4 for use with lwzu */
        mtctr	5

.Lcvt:
	lwzu	6,4(3)				/* pointer to convert */
	cmpwi	0,6,0
	beq-	.Lcvt2				/* if pointer is null, don't convert */

        add	6,6,12				/* convert pointer */
        stw	6,0(3)
.Lcvt2:
        bdnz+	.Lcvt
        blr

FUNC_END(__eabi_convert)

/* Special subroutine to convert the pointers the user has initialized.  The
   compiler has placed the address of the initialized pointer into the .fixup
   section.

   r0		has original link register
   r3		has low pointer to convert
   r4		has high pointer to convert
   r5 .. r10	are scratch registers
   r11		has the address of .LCTOC1 in it.
   r12		has the value to add to each pointer
   r13 .. r31	are unchanged */
	
FUNC_START(__eabi_uconvert)
        cmplw	1,3,4				/* any pointers to convert? */
        subf	5,3,4				/* calculate number of words to convert */
        bclr	4,4				/* return if no pointers */

        srawi	5,5,2
	addi	3,3,-4				/* start-4 for use with lwzu */
        mtctr	5

.Lucvt:
	lwzu	6,4(3)				/* next pointer to pointer to convert */
	add	6,6,12				/* adjust pointer */
	lwz	7,0(6)				/* get the pointer it points to */
	stw	6,0(3)				/* store adjusted pointer */
	add	7,7,12				/* adjust */
	stw	7,0(6)
        bdnz+	.Lucvt
        blr

FUNC_END(__eabi_uconvert)
#endif
#endif
Commit	Line	Data
aba62944	1	/*
710fdaad	2	* Special support for eabi and SVR4
aba62944	3	*
748086b7	4	* Copyright (C) 1995, 1996, 1998, 2000, 2001, 2008, 2009
66647d44	5	* Free Software Foundation, Inc.
aba62944 MM	6	* Written By Michael Meissner
	7	*
	8	* This file is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
748086b7	10	* Free Software Foundation; either version 3, or (at your option) any
aba62944 MM	11	* later version.
aba62944 MM	12	*
aba62944 MM	13	* This file is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
748086b7 JJ	18	* Under Section 7 of GPL version 3, you are granted additional
	19	* permissions described in the GCC Runtime Library Exception, version
	20	* 3.1, as published by the Free Software Foundation.
	21	*
	22	* You should have received a copy of the GNU General Public License and
	23	* a copy of the GCC Runtime Library Exception along with this program;
	24	* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	25	* <http://www.gnu.org/licenses/>.
aba62944 MM	26	*/
aba62944 MM	27
b6c9286a	28	/* Do any initializations needed for the eabi environment */
d14a6d05	29
d14a6d05	30	.section ".text"
b6c9286a	31	#include "ppc-asm.h"
d14a6d05	32
710fdaad DE	33	#ifndef __powerpc64__
710fdaad DE	34
c2baf133	35	.section ".got2","aw"
332dd867	36	.align 2
b6c9286a	37	.LCTOC1 = . /* +32768 */
d14a6d05	38
b6c9286a	39	/* Table of addresses */
c2baf133	40	.Ltable = .-.LCTOC1
b6c9286a	41	.long .LCTOC1 /* address we are really at */
9890ad7a	42
a83cc09f MM	43	.Lsda = .-.LCTOC1
a83cc09f MM	44	.long _SDA_BASE_ /* address of the first small data area */
9890ad7a	45
a83cc09f MM	46	.Lsdas = .-.LCTOC1
a83cc09f MM	47	.long __SDATA_START__ /* start of .sdata/.sbss section */
ce133c0f	48
a83cc09f MM	49	.Lsdae = .-.LCTOC1
	50	.long __SBSS_END__ /* end of .sdata/.sbss section */
	51
	52	.Lsda2 = .-.LCTOC1
	53	.long _SDA2_BASE_ /* address of the second small data area */
	54
	55	.Lsda2s = .-.LCTOC1
	56	.long __SDATA2_START__ /* start of .sdata2/.sbss2 section */
	57
	58	.Lsda2e = .-.LCTOC1
	59	.long __SBSS2_END__ /* end of .sdata2/.sbss2 section */
ce133c0f	60
5b9d9a0c MM	61	#ifdef _RELOCATABLE
	62	.Lgots = .-.LCTOC1
	63	.long __GOT_START__ /* Global offset table start */
	64
	65	.Lgotm1 = .-.LCTOC1
	66	.long _GLOBAL_OFFSET_TABLE_-4 /* end of GOT ptrs before BLCL + 3 reserved words */
	67
	68	.Lgotm2 = .-.LCTOC1
	69	.long _GLOBAL_OFFSET_TABLE_+12 /* start of GOT ptrs after BLCL + 3 reserved words */
	70
	71	.Lgote = .-.LCTOC1
	72	.long __GOT_END__ /* Global offset table end */
	73
9890ad7a	74	.Lgot2s = .-.LCTOC1
aba62944	75	.long __GOT2_START__ /* -mrelocatable GOT pointers start */
9890ad7a MM	76
9890ad7a MM	77	.Lgot2e = .-.LCTOC1
aba62944	78	.long __GOT2_END__ /* -mrelocatable GOT pointers end */
d14a6d05	79
4697a36c	80	.Lfixups = .-.LCTOC1
aba62944	81	.long __FIXUP_START__ /* start of .fixup section */
4697a36c MM	82
4697a36c MM	83	.Lfixupe = .-.LCTOC1
aba62944 MM	84	.long __FIXUP_END__ /* end of .fixup section */
	85
	86	.Lctors = .-.LCTOC1
	87	.long __CTOR_LIST__ /* start of .ctor section */
	88
	89	.Lctore = .-.LCTOC1
	90	.long __CTOR_END__ /* end of .ctor section */
	91
	92	.Ldtors = .-.LCTOC1
	93	.long __DTOR_LIST__ /* start of .dtor section */
	94
	95	.Ldtore = .-.LCTOC1
	96	.long __DTOR_END__ /* end of .dtor section */
4697a36c	97
e1f83b4d MM	98	.Lexcepts = .-.LCTOC1
	99	.long __EXCEPT_START__ /* start of .gcc_except_table section */
	100
	101	.Lexcepte = .-.LCTOC1
	102	.long __EXCEPT_END__ /* end of .gcc_except_table section */
	103
0780f386 MM	104	.Linit = .-.LCTOC1
	105	.long .Linit_p /* address of variable to say we've been called */
	106
5b9d9a0c MM	107	.text
	108	.align 2
	109	.Lptr:
	110	.long .LCTOC1-.Laddr /* PC relative pointer to .got2 */
	111	#endif
	112
0780f386	113	.data
332dd867	114	.align 2
0780f386 MM	115	.Linit_p:
	116	.long 0
	117
c2baf133	118	.text
c2baf133	119
b6c9286a	120	FUNC_START(__eabi)
3cfa4909 MM	121
3cfa4909 MM	122	/* Eliminate -mrelocatable code if not -mrelocatable, so that this file can
f607bc57	123	be assembled with other assemblers than GAS. */
3cfa4909	124
5b9d9a0c MM	125	#ifndef _RELOCATABLE
	126	addis 10,0,.Linit_p@ha /* init flag */
	127	addis 11,0,.LCTOC1@ha /* load address of .LCTOC1 */
	128	lwz 9,.Linit_p@l(10) /* init flag */
	129	addi 11,11,.LCTOC1@l
	130	cmplwi 2,9,0 /* init flag != 0? */
	131	bnelr 2 /* return now, if we've been called already */
a0ab749a	132	stw 1,.Linit_p@l(10) /* store a nonzero value in the done flag */
5b9d9a0c MM	133
5b9d9a0c MM	134	#else /* -mrelocatable */
b6c9286a MM	135	mflr 0
b6c9286a MM	136	bl .Laddr /* get current address */
ce133c0f	137	.Laddr:
b6c9286a MM	138	mflr 12 /* real address of .Laddr */
	139	lwz 11,(.Lptr-.Laddr)(12) /* linker generated address of .LCTOC1 */
	140	add 11,11,12 /* correct to real pointer */
	141	lwz 12,.Ltable(11) /* get linker's idea of where .Laddr is */
0780f386	142	lwz 10,.Linit(11) /* address of init flag */
b6c9286a	143	subf. 12,12,11 /* calculate difference */
0780f386	144	lwzx 9,10,12 /* done flag */
68ea97b4	145	cmplwi 2,9,0 /* init flag != 0? */
a1b5a7e1	146	mtlr 0 /* restore in case branch was taken */
68ea97b4	147	bnelr 2 /* return now, if we've been called already */
a0ab749a	148	stwx 1,10,12 /* store a nonzero value in the done flag */
5b9d9a0c	149	beq+ 0,.Lsdata /* skip if we don't need to relocate */
d14a6d05	150
82e41834	151	/* We need to relocate the .got2 pointers. */
3cfa4909	152
5b9d9a0c MM	153	lwz 3,.Lgot2s(11) /* GOT2 pointers start */
5b9d9a0c MM	154	lwz 4,.Lgot2e(11) /* GOT2 pointers end */
b6c9286a	155	add 3,12,3 /* adjust pointers */
ce133c0f	156	add 4,12,4
5b9d9a0c	157	bl FUNC_NAME(__eabi_convert) /* convert pointers in .got2 section */
d14a6d05	158
aba62944 MM	159	/* Fixup the .ctor section for static constructors */
aba62944 MM	160
aba62944 MM	161	lwz 3,.Lctors(11) /* constructors pointers start */
aba62944 MM	162	lwz 4,.Lctore(11) /* constructors pointers end */
5b9d9a0c	163	bl FUNC_NAME(__eabi_convert) /* convert constructors */
aba62944 MM	164
	165	/* Fixup the .dtor section for static destructors */
	166
aba62944 MM	167	lwz 3,.Ldtors(11) /* destructors pointers start */
aba62944 MM	168	lwz 4,.Ldtore(11) /* destructors pointers end */
5b9d9a0c	169	bl FUNC_NAME(__eabi_convert) /* convert destructors */
aba62944	170
e1f83b4d MM	171	/* Fixup the .gcc_except_table section for G++ exceptions */
e1f83b4d MM	172
e1f83b4d MM	173	lwz 3,.Lexcepts(11) /* exception table pointers start */
e1f83b4d MM	174	lwz 4,.Lexcepte(11) /* exception table pointers end */
5b9d9a0c	175	bl FUNC_NAME(__eabi_convert) /* convert exceptions */
e1f83b4d	176
38e01259	177	/* Fixup the addresses in the GOT below _GLOBAL_OFFSET_TABLE_-4 */
e1f83b4d	178
5b9d9a0c MM	179	lwz 3,.Lgots(11) /* GOT table pointers start */
	180	lwz 4,.Lgotm1(11) /* GOT table pointers below _GLOBAL_OFFSET_TABLE-4 */
	181	bl FUNC_NAME(__eabi_convert) /* convert lower GOT */
	182
38e01259	183	/* Fixup the addresses in the GOT above _GLOBAL_OFFSET_TABLE_+12 */
5b9d9a0c MM	184
	185	lwz 3,.Lgotm2(11) /* GOT table pointers above _GLOBAL_OFFSET_TABLE+12 */
	186	lwz 4,.Lgote(11) /* GOT table pointers end */
	187	bl FUNC_NAME(__eabi_convert) /* convert lower GOT */
e1f83b4d	188
b6c9286a	189	/* Fixup any user initialized pointers now (the compiler drops pointers to */
aba62944	190	/* each of the relocs that it does in the .fixup section). */
4697a36c MM	191
4697a36c MM	192	.Lfix:
b6c9286a MM	193	lwz 3,.Lfixups(11) /* fixup pointers start */
b6c9286a MM	194	lwz 4,.Lfixupe(11) /* fixup pointers end */
5b9d9a0c	195	bl FUNC_NAME(__eabi_uconvert) /* convert user initialized pointers */
4697a36c	196
5b9d9a0c MM	197	.Lsdata:
5b9d9a0c MM	198	mtlr 0 /* restore link register */
3cfa4909	199	#endif /* _RELOCATABLE */
4697a36c	200
5b9d9a0c MM	201	/* Only load up register 13 if there is a .sdata and/or .sbss section */
	202	lwz 3,.Lsdas(11) /* start of .sdata/.sbss section */
	203	lwz 4,.Lsdae(11) /* end of .sdata/.sbss section */
	204	cmpw 1,3,4 /* .sdata/.sbss section non-empty? */
	205	beq- 1,.Lsda2l /* skip loading r13 */
	206
	207	lwz 13,.Lsda(11) /* load r13 with _SDA_BASE_ address */
	208
	209	/* Only load up register 2 if there is a .sdata2 and/or .sbss2 section */
	210
	211	.Lsda2l:
	212	lwz 3,.Lsda2s(11) /* start of .sdata/.sbss section */
	213	lwz 4,.Lsda2e(11) /* end of .sdata/.sbss section */
	214	cmpw 1,3,4 /* .sdata/.sbss section non-empty? */
	215	beq+ 1,.Ldone /* skip loading r2 */
	216
	217	lwz 2,.Lsda2(11) /* load r2 with _SDA2_BASE_ address */
	218
	219	/* Done adjusting pointers, return by way of doing the C++ global constructors. */
d14a6d05 MM	220
d14a6d05 MM	221	.Ldone:
362c63a5	222	b FUNC_NAME(__init) /* do any C++ global constructors (which returns to caller) */
b6c9286a MM	223	FUNC_END(__eabi)
b6c9286a MM	224
5b9d9a0c MM	225	/* Special subroutine to convert a bunch of pointers directly.
	226	r0 has original link register
	227	r3 has low pointer to convert
	228	r4 has high pointer to convert
	229	r5 .. r10 are scratch registers
	230	r11 has the address of .LCTOC1 in it.
	231	r12 has the value to add to each pointer
	232	r13 .. r31 are unchanged */
19b905ce	233	#ifdef _RELOCATABLE
5b9d9a0c MM	234	FUNC_START(__eabi_convert)
	235	cmplw 1,3,4 /* any pointers to convert? */
	236	subf 5,3,4 /* calculate number of words to convert */
	237	bclr 4,4 /* return if no pointers */
	238
	239	srawi 5,5,2
	240	addi 3,3,-4 /* start-4 for use with lwzu */
	241	mtctr 5
	242
	243	.Lcvt:
	244	lwzu 6,4(3) /* pointer to convert */
11368579	245	cmpwi 0,6,0
5b9d9a0c MM	246	beq- .Lcvt2 /* if pointer is null, don't convert */
	247
	248	add 6,6,12 /* convert pointer */
	249	stw 6,0(3)
	250	.Lcvt2:
	251	bdnz+ .Lcvt
	252	blr
	253
	254	FUNC_END(__eabi_convert)
	255
	256	/* Special subroutine to convert the pointers the user has initialized. The
	257	compiler has placed the address of the initialized pointer into the .fixup
	258	section.
	259
	260	r0 has original link register
	261	r3 has low pointer to convert
	262	r4 has high pointer to convert
	263	r5 .. r10 are scratch registers
	264	r11 has the address of .LCTOC1 in it.
	265	r12 has the value to add to each pointer
	266	r13 .. r31 are unchanged */
	267
	268	FUNC_START(__eabi_uconvert)
	269	cmplw 1,3,4 /* any pointers to convert? */
	270	subf 5,3,4 /* calculate number of words to convert */
	271	bclr 4,4 /* return if no pointers */
	272
	273	srawi 5,5,2
	274	addi 3,3,-4 /* start-4 for use with lwzu */
	275	mtctr 5
	276
	277	.Lucvt:
	278	lwzu 6,4(3) /* next pointer to pointer to convert */
	279	add 6,6,12 /* adjust pointer */
	280	lwz 7,0(6) /* get the pointer it points to */
	281	stw 6,0(3) /* store adjusted pointer */
	282	add 7,7,12 /* adjust */
	283	stw 7,0(6)
	284	bdnz+ .Lucvt
	285	blr
	286
	287	FUNC_END(__eabi_uconvert)
19b905ce	288	#endif
710fdaad	289	#endif