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Commit | Line | Data |
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d66e34cd | 1 | /* Return the next shared object initializer function not yet run. |
f68b86cc | 2 | Copyright (C) 1995, 1996 Free Software Foundation, Inc. |
d66e34cd RM |
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 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. | |
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 | |
13 | Library General Public License for more details. | |
14 | ||
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 | |
17 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
18 | Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #include <stddef.h> | |
21 | #include <link.h> | |
22 | ||
23 | ||
f68b86cc RM |
24 | /* Run initializers for MAP and its dependencies, in inverse dependency |
25 | order (that is, leaf nodes first). */ | |
26 | ||
266180eb | 27 | ElfW(Addr) |
f68b86cc | 28 | _dl_init_next (struct link_map *map) |
d66e34cd | 29 | { |
f68b86cc RM |
30 | unsigned int i; |
31 | ||
32 | /* The search list for symbol lookup is a flat list in top-down | |
33 | dependency order, so processing that list from back to front gets us | |
34 | breadth-first leaf-to-root order. */ | |
d66e34cd | 35 | |
f68b86cc RM |
36 | i = map->l_nsearchlist; |
37 | while (i-- > 0) | |
d66e34cd | 38 | { |
f68b86cc RM |
39 | struct link_map *l = map->l_searchlist[i]; |
40 | ||
d66e34cd RM |
41 | if (l->l_init_called) |
42 | /* This object is all done. */ | |
f68b86cc RM |
43 | continue; |
44 | ||
d66e34cd RM |
45 | if (l->l_init_running) |
46 | { | |
47 | /* This object's initializer was just running. | |
48 | Now mark it as having run, so this object | |
49 | will be skipped in the future. */ | |
d66e34cd | 50 | l->l_init_running = 0; |
f68b86cc RM |
51 | l->l_init_called = 1; |
52 | continue; | |
d66e34cd RM |
53 | } |
54 | ||
65bf5fa3 RM |
55 | if (l->l_info[DT_INIT] && |
56 | !(l->l_name[0] == '\0' && l->l_type == lt_executable)) | |
d66e34cd RM |
57 | { |
58 | /* Run this object's initializer. */ | |
59 | l->l_init_running = 1; | |
60 | return l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr; | |
61 | } | |
62 | ||
63 | /* No initializer for this object. | |
64 | Mark it so we will skip it in the future. */ | |
65 | l->l_init_called = 1; | |
d66e34cd | 66 | } |
d66e34cd | 67 | |
4d6acc61 RM |
68 | |
69 | /* Notify the debugger all new objects are now ready to go. */ | |
70 | _r_debug.r_state = RT_CONSISTENT; | |
71 | _dl_debug_state (); | |
72 | ||
f68b86cc | 73 | return 0; |
d66e34cd | 74 | } |