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266180eb | 1 | /* Support for dynamic linking code in static libc. |
880f421f | 2 | Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. |
afd4eb37 | 3 | This file is part of the GNU C Library. |
266180eb | 4 | |
afd4eb37 UD |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | License, or (at your option) any later version. | |
266180eb | 9 | |
afd4eb37 UD |
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 | |
13 | Library General Public License for more details. | |
266180eb | 14 | |
afd4eb37 UD |
15 | You should have received a copy of the GNU Library General Public |
16 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
18 | Boston, MA 02111-1307, USA. */ | |
266180eb | 19 | |
266180eb RM |
20 | /* This file defines some things that for the dynamic linker are defined in |
21 | rtld.c and dl-sysdep.c in ways appropriate to bootstrap dynamic linking. */ | |
22 | ||
0a54e401 | 23 | #include <link.h> |
b13927da | 24 | #include <stdlib.h> |
0a54e401 UD |
25 | #include <unistd.h> |
26 | #include <dl-machine.h> | |
b13927da | 27 | |
266180eb RM |
28 | extern char *__progname; |
29 | char **_dl_argv = &__progname; /* This is checked for some error messages. */ | |
30 | ||
31 | /* This defines the default search path for libraries. | |
32 | For the dynamic linker it is set by -rpath when linking. */ | |
33 | const char *_dl_rpath = DEFAULT_RPATH; | |
b13927da | 34 | |
0a54e401 UD |
35 | /* Name of the architecture. */ |
36 | const char *_dl_platform; | |
37 | size_t _dl_platformlen; | |
b5efde2f | 38 | int _dl_debug_libs; |
267e3696 | 39 | int _dl_debug_impcalls; |
0c367d92 | 40 | int _dl_debug_bindings; |
de100ca7 | 41 | int _dl_debug_symbols; |
8193034b UD |
42 | int _dl_debug_versions; |
43 | int _dl_debug_reloc; | |
44 | int _dl_debug_files; | |
0a54e401 | 45 | |
b13927da UD |
46 | /* If nonzero print warnings about problematic situations. */ |
47 | int _dl_verbose; | |
48 | ||
0a54e401 UD |
49 | /* Structure to store information about search paths. */ |
50 | struct r_search_path *_dl_search_paths; | |
b13927da | 51 | |
3996f34b UD |
52 | /* We never do profiling. */ |
53 | const char *_dl_profile; | |
54 | struct link_map *_dl_profile_map; | |
55 | ||
0a54e401 UD |
56 | |
57 | static void non_dynamic_init (void) __attribute__ ((unused)); | |
b13927da UD |
58 | |
59 | static void | |
0a54e401 | 60 | non_dynamic_init (void) |
b13927da UD |
61 | { |
62 | _dl_verbose = *(getenv ("LD_WARN") ?: "") == '\0' ? 0 : 1; | |
0a54e401 | 63 | |
e34b0f29 UD |
64 | _dl_pagesize = __getpagesize (); |
65 | ||
0a54e401 UD |
66 | /* Initialize the data structures for the search paths for shared |
67 | objects. */ | |
b4debac9 | 68 | _dl_init_paths (getenv ("LD_LIBRARY_PATH")); |
0a54e401 UD |
69 | |
70 | #ifdef DL_PLATFORM_INIT | |
71 | DL_PLATFORM_INIT; | |
72 | #endif | |
73 | ||
74 | /* Now determine the length of the platform string. */ | |
75 | if (_dl_platform != NULL) | |
76 | _dl_platformlen = strlen (_dl_platform); | |
b13927da | 77 | } |
0a54e401 | 78 | text_set_element (__libc_subinit, non_dynamic_init); |