]>
Commit | Line | Data |
---|---|---|
df83af67 | 1 | /* Special .init and .fini section support for SH. |
b168057a | 2 | Copyright (C) 2000-2015 Free Software Foundation, Inc. |
df83af67 KK |
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 | |
c524201a PE |
33 | License along with the GNU C Library; if not, see |
34 | <http://www.gnu.org/licenses/>. */ | |
df83af67 KK |
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 | .type _init, @function | |
62 | _init: | |
63 | mov.l r12,@-r15 | |
64 | mova .L12,r0 | |
65 | mov.l .L12,r12 | |
66 | mov.l r14,@-r15 | |
67 | add r0,r12 | |
68 | sts.l pr,@-r15 | |
69 | #if PREINIT_FUNCTION_WEAK | |
70 | mov.l .L13,r0 | |
71 | mov.l @(r0,r12),r1 | |
72 | tst r1,r1 | |
73 | bt/s .L8 | |
74 | mov r15,r14 | |
75 | mov.l .L14,r1 | |
76 | bsrf r1 | |
77 | .LPCS0: | |
78 | nop | |
79 | .L8: | |
80 | #else | |
81 | mova .L13,r0 | |
82 | mov.l .L13,r1 | |
83 | add r0,r1 | |
84 | jsr @r1 | |
85 | mov r15,r14 | |
86 | #endif | |
87 | bra 1f | |
88 | nop | |
89 | .align 2 | |
90 | .L12: | |
91 | .long _GLOBAL_OFFSET_TABLE_ | |
92 | #if PREINIT_FUNCTION_WEAK | |
93 | .L13: | |
94 | .long PREINIT_FUNCTION@GOT | |
95 | .L14: | |
96 | .long PREINIT_FUNCTION@PLT-(.LPCS0+2-(.)) | |
97 | #else | |
98 | .L13: | |
99 | .long PREINIT_FUNCTION@PLT | |
100 | #endif | |
101 | 1: | |
102 | ||
103 | .section .fini,"ax",@progbits | |
104 | .align 5 | |
105 | .global _fini | |
106 | .type _fini, @function | |
107 | _fini: | |
108 | mov.l r12,@-r15 | |
109 | mova .L19,r0 | |
110 | mov.l r14,@-r15 | |
111 | sts.l pr,@-r15 | |
112 | mov.l .L19,r12 | |
113 | mov r15,r14 | |
114 | add r0,r12 | |
115 | bra 0f | |
116 | nop | |
117 | .align 2 | |
118 | .L19: | |
119 | .long _GLOBAL_OFFSET_TABLE_ | |
120 | 0: |