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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 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
3846ef75 UD |
19 | |
20 | #include <unistd.h> | |
21 | ||
22 | extern void __libc_init (int, char **, char **); | |
0ed24bc6 | 23 | #ifdef USE_NONOPTION_FLAGS |
3846ef75 | 24 | extern void __getopt_clean_environment (char **); |
0ed24bc6 | 25 | #endif |
3846ef75 UD |
26 | extern void __libc_global_ctors (void); |
27 | ||
ab26a24a | 28 | int __libc_multiple_libcs attribute_hidden = 1; |
3846ef75 UD |
29 | |
30 | static void | |
31 | init (int *data) | |
32 | { | |
33 | int argc = *data; | |
34 | char **argv = (void *) (data + 1); | |
35 | char **envp = &argv[argc + 1]; | |
36 | ||
37 | __environ = envp; | |
38 | __libc_init (argc, argv, envp); | |
39 | ||
0ed24bc6 | 40 | #ifdef USE_NONOPTION_FLAGS |
3846ef75 UD |
41 | /* This is a hack to make the special getopt in GNU libc working. */ |
42 | __getopt_clean_environment (envp); | |
0ed24bc6 | 43 | #endif |
3846ef75 UD |
44 | } |
45 | ||
46 | #ifdef SHARED | |
47 | /* This function is called to initialize the shared C library. | |
48 | It is called just before the user _start code from sh/sh[34]/elf/start.S, | |
49 | with the stack set up as that code gets it. */ | |
50 | ||
51 | /* NOTE! The linker notices the magical name `_init' and sets the DT_INIT | |
52 | pointer in the dynamic section based solely on that. It is convention | |
53 | for this function to be in the `.init' section, but the symbol name is | |
54 | the only thing that really matters!! */ | |
55 | /*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/ | |
56 | ||
57 | void | |
58 | _init (int argc, ...) | |
59 | { | |
60 | init (&argc); | |
61 | ||
62 | __libc_global_ctors (); | |
63 | } | |
64 | #endif | |
65 | ||
66 | ||
67 | void | |
68 | __libc_init_first (int argc __attribute__ ((unused)), ...) | |
69 | { | |
70 | #ifndef SHARED | |
71 | init (&argc); | |
72 | #endif | |
73 | } |