2 * Copyright (c) 1993 Paul Kranenburg
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Paul Kranenburg.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * $FreeBSD: src/sys/sys/link_elf.h,v 1.32 2011/01/08 17:11:49 kib Exp $
34 * RRS section definitions.
36 * The layout of some data structures defined in this header file is
37 * such that we can provide compatibility with the SunOS 4.x shared
41 #ifndef _SYS_LINK_ELF_H_
42 #define _SYS_LINK_ELF_H_
47 * Flags that describe the origin of the entries in Dl_serinfo.
48 * SunOS has these in <sys/link.h>, we follow the suit.
50 #define LA_SER_ORIG 0x01 /* original (needed) name */
51 #define LA_SER_LIBPATH 0x02 /* LD_LIBRARY_PATH entry prepended */
52 #define LA_SER_RUNPATH 0x04 /* runpath entry prepended */
53 #define LA_SER_CONFIG 0x08 /* configuration entry prepended */
54 #define LA_SER_DEFAULT 0x40 /* default path prepended */
55 #define LA_SER_SECURE 0x80 /* default (secure) path prepended */
57 typedef struct link_map {
58 caddr_t l_addr; /* Base Address of library */
60 caddr_t l_offs; /* Load Offset of library */
62 const char *l_name; /* Absolute Path to Library */
63 const void *l_ld; /* Pointer to .dynamic in memory */
64 struct link_map *l_next, *l_prev; /* linked list of of mapped libs */
68 int r_version; /* not used */
69 struct link_map *r_map; /* list of loaded images */
70 void (*r_brk)(struct r_debug *, struct link_map *);
71 /* pointer to break point */
73 RT_CONSISTENT, /* things are stable */
74 RT_ADD, /* adding a shared library */
75 RT_DELETE /* removing a shared library */
81 Elf_Addr dlpi_addr; /* module relocation base */
82 const char *dlpi_name; /* module name */
83 const Elf_Phdr *dlpi_phdr; /* pointer to module's phdr */
84 Elf_Half dlpi_phnum; /* number of entries in phdr */
85 unsigned long long int dlpi_adds; /* total # of loads */
86 unsigned long long int dlpi_subs; /* total # of unloads */
87 size_t dlpi_tls_modid;
93 typedef int (*__dl_iterate_hdr_callback)(struct dl_phdr_info *, size_t, void *);
94 extern int dl_iterate_phdr(__dl_iterate_hdr_callback, void *);
95 int _rtld_addr_phdr(const void *, struct dl_phdr_info *);
96 int _rtld_get_stack_prot(void);
100 #endif /* _SYS_LINK_ELF_H_ */