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sourceware.org Git - glibc.git/blob - elf/dl-init.c
e3bfc2ccea135b1ef32a58b3cd6cd592db5831dd
1 /* Return the next shared object initializer function not yet run.
2 Copyright (C) 1995 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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. */
30 Elf32_Addr
next_init (struct link_map
*l
)
33 /* This object is all done. */
35 if (l
->l_init_running
)
37 /* This object's initializer was just running.
38 Now mark it as having run, so this object
39 will be skipped in the future. */
41 l
->l_init_running
= 0;
45 if (l
->l_info
[DT_NEEDED
])
47 /* Find each dependency in order, and see if it
48 needs to run an initializer. */
50 for (d
= l
->l_ld
; d
->d_tag
!= DT_NULL
; ++d
)
51 if (d
->d_tag
== DT_NEEDED
)
53 struct link_map
*needed
= _dl_map_object
54 (l
, (const char *) (l
->l_addr
+ d
->d_un
.d_ptr
), NULL
);
56 --needed
->l_opencount
;
57 init
= next_init (l
); /* Recurse on this dependency. */
63 if (l
->l_info
[DT_INIT
])
65 /* Run this object's initializer. */
66 l
->l_init_running
= 1;
67 return l
->l_addr
+ l
->l_info
[DT_INIT
]->d_un
.d_ptr
;
70 /* No initializer for this object.
71 Mark it so we will skip it in the future. */
76 /* Look for the first initializer not yet called. */
83 while (init
== 0 && l
);
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