1/* Special .init and .fini section support for SH.
2   Copyright (C) 2000-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   The GNU C Library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License as published by the Free Software Foundation; either
8   version 2.1 of the License, or (at your option) any later version.
9
10   In addition to the permissions in the GNU Lesser General Public
11   License, the Free Software Foundation gives you unlimited
12   permission to link the compiled version of this file with other
13   programs, and to distribute those programs without any restriction
14   coming from the use of this file. (The GNU Lesser General Public
15   License restrictions do apply in other respects; for example, they
16   cover modification of the file, and distribution when not linked
17   into another program.)
18
19   Note that people who make modified versions of this file are not
20   obligated to grant this special exception for their modified
21   versions; it is their choice whether to do so. The GNU Lesser
22   General Public License gives permission to release a modified
23   version without this exception; this exception also makes it
24   possible to release a modified version which carries forward this
25   exception.
26
27   The GNU C Library is distributed in the hope that it will be useful,
28   but WITHOUT ANY WARRANTY; without even the implied warranty of
29   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
30   Lesser General Public License for more details.
31
32   You should have received a copy of the GNU Lesser General Public
33   License along with the GNU C Library; if not, see
34   <https://www.gnu.org/licenses/>.  */
35
36/* crti.S puts a function prologue at the beginning of the .init and
37   .fini sections and defines global symbols for those addresses, so
38   they can be called as functions.  The symbols _init and _fini are
39   magic and cause the linker to emit DT_INIT and DT_FINI.  */
40
41#include <libc-symbols.h>
42#include <sysdep.h>
43
44#ifndef PREINIT_FUNCTION
45# define PREINIT_FUNCTION __gmon_start__
46#endif
47
48#ifndef PREINIT_FUNCTION_WEAK
49# define PREINIT_FUNCTION_WEAK 1
50#endif
51
52#if PREINIT_FUNCTION_WEAK
53	weak_extern (PREINIT_FUNCTION)
54#else
55	.hidden PREINIT_FUNCTION
56#endif
57
58	.section	.init,"ax",@progbits
59	.align 5
60	.global	_init
61	.hidden	_init
62	.type	_init, @function
63_init:
64	mov.l	r12,@-r15
65	mova	.L12,r0
66	mov.l	.L12,r12
67	mov.l	r14,@-r15
68	add	r0,r12
69	sts.l	pr,@-r15
70#if PREINIT_FUNCTION_WEAK
71	mov.l	.L13,r0
72	mov.l	@(r0,r12),r1
73	tst	r1,r1
74	bt/s	.L8
75	mov	r15,r14
76	mov.l	.L14,r1
77	bsrf	r1
78.LPCS0:
79	nop
80.L8:
81#else
82	mova    .L13,r0
83	mov.l	.L13,r1
84	add	r0,r1
85	jsr	@r1
86	mov    r15,r14
87#endif
88	bra	1f
89	nop
90	.align 2
91.L12:
92	.long	_GLOBAL_OFFSET_TABLE_
93#if PREINIT_FUNCTION_WEAK
94.L13:
95	.long	PREINIT_FUNCTION@GOT
96.L14:
97	.long	PREINIT_FUNCTION@PLT-(.LPCS0+2-(.))
98#else
99.L13:
100	.long	PREINIT_FUNCTION@PLT
101#endif
1021:
103
104	.section	.fini,"ax",@progbits
105	.align 5
106	.global	_fini
107	.hidden	_fini
108	.type	_fini, @function
109_fini:
110	mov.l	r12,@-r15
111	mova	.L19,r0
112	mov.l	r14,@-r15
113	sts.l	pr,@-r15
114	mov.l	.L19,r12
115	mov	r15,r14
116	add	r0,r12
117	bra	0f
118	nop
119	.align 2
120.L19:
121	.long	_GLOBAL_OFFSET_TABLE_
1220:
123