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3846ef75 | 1 | /* Initialization code run first thing by the ELF startup code. For SH. |
ab26a24a | 2 | Copyright (C) 1995-1998, 2000, 2001, 2002 Free Software Foundation, Inc. |
3846ef75 UD |
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 | |
41bdb6e2 AJ |
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. | |
3846ef75 UD |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
3846ef75 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
3846ef75 UD |
18 | |
19 | #include <unistd.h> | |
20 | ||
21 | extern void __libc_init (int, char **, char **); | |
0ed24bc6 | 22 | #ifdef USE_NONOPTION_FLAGS |
3846ef75 | 23 | extern void __getopt_clean_environment (char **); |
0ed24bc6 | 24 | #endif |
3846ef75 UD |
25 | extern void __libc_global_ctors (void); |
26 | ||
ab26a24a | 27 | int __libc_multiple_libcs attribute_hidden = 1; |
3846ef75 UD |
28 | |
29 | static void | |
30 | init (int *data) | |
31 | { | |
32 | int argc = *data; | |
33 | char **argv = (void *) (data + 1); | |
34 | char **envp = &argv[argc + 1]; | |
35 | ||
36 | __environ = envp; | |
37 | __libc_init (argc, argv, envp); | |
38 | ||
0ed24bc6 | 39 | #ifdef USE_NONOPTION_FLAGS |
3846ef75 UD |
40 | /* This is a hack to make the special getopt in GNU libc working. */ |
41 | __getopt_clean_environment (envp); | |
0ed24bc6 | 42 | #endif |
3846ef75 UD |
43 | } |
44 | ||
45 | #ifdef SHARED | |
46 | /* This function is called to initialize the shared C library. | |
47 | It is called just before the user _start code from sh/sh[34]/elf/start.S, | |
48 | with the stack set up as that code gets it. */ | |
49 | ||
50 | /* NOTE! The linker notices the magical name `_init' and sets the DT_INIT | |
51 | pointer in the dynamic section based solely on that. It is convention | |
52 | for this function to be in the `.init' section, but the symbol name is | |
53 | the only thing that really matters!! */ | |
54 | /*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/ | |
55 | ||
56 | void | |
57 | _init (int argc, ...) | |
58 | { | |
59 | init (&argc); | |
60 | ||
4a531bb0 | 61 | #ifndef NO_CTORS_DTORS_SECTIONS |
3846ef75 | 62 | __libc_global_ctors (); |
4a531bb0 | 63 | #endif |
3846ef75 UD |
64 | } |
65 | #endif | |
66 | ||
67 | ||
68 | void | |
69 | __libc_init_first (int argc __attribute__ ((unused)), ...) | |
70 | { | |
71 | #ifndef SHARED | |
72 | init (&argc); | |
73 | #endif | |
74 | } |