/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 1993 Paul Kranenburg
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* RRS section definitions.
*
* The layout of some data structures defined in this header file is
* such that we can provide compatibility with the SunOS 4.x shared
* library scheme.
*/
#ifndef _SYS_LINK_ELF_H_
#define _SYS_LINK_ELF_H_
#include <sys/elf.h>
/*
* Flags that describe the origin of the entries in Dl_serinfo.
* SunOS has these in <sys/link.h>, we follow the suit.
*/
#define LA_SER_ORIG 0x01 /* original (needed) name */
#define LA_SER_LIBPATH 0x02 /* LD_LIBRARY_PATH entry prepended */
#define LA_SER_RUNPATH 0x04 /* runpath entry prepended */
#define LA_SER_CONFIG 0x08 /* configuration entry prepended */
#define LA_SER_DEFAULT 0x40 /* default path prepended */
#define LA_SER_SECURE 0x80 /* default (secure) path prepended */
typedef struct link_map {
caddr_t l_base; /* Base Address of library */
#ifdef __mips__
caddr_t l_xxx; /* unused */
#endif
const char *l_name; /* Absolute Path to Library */
const void *l_ld; /* Pointer to .dynamic in memory */
struct link_map *l_next, *l_prev; /* linked list of of mapped libs */
caddr_t l_addr; /* Load Offset of library */
const char *l_refname; /* object we are filtering for */
} Link_map;
struct r_debug {
int r_version; /* Currently '1' */
struct link_map *r_map; /* list of loaded images */
void (*r_brk)(struct r_debug *, struct link_map *);
/* pointer to break point */
enum {
RT_CONSISTENT, /* things are stable */
RT_ADD, /* adding a shared library */
RT_DELETE /* removing a shared library */
} r_state;
void *r_ldbase; /* Base address of rtld */
};
#define R_DEBUG_VERSION 1
struct dl_phdr_info
{
Elf_Addr dlpi_addr; /* module relocation base */
const char *dlpi_name; /* module name */
const Elf_Phdr *dlpi_phdr; /* pointer to module's phdr */
Elf_Half dlpi_phnum; /* number of entries in phdr */
unsigned long long int dlpi_adds; /* total # of loads */
unsigned long long int dlpi_subs; /* total # of unloads */
size_t dlpi_tls_modid;
void *dlpi_tls_data;
};
__BEGIN_DECLS
typedef int (*__dl_iterate_hdr_callback)(struct dl_phdr_info *, size_t, void *);
extern int dl_iterate_phdr(__dl_iterate_hdr_callback, void *);
int _rtld_addr_phdr(const void *, struct dl_phdr_info *);
int _rtld_get_stack_prot(void);
int _rtld_is_dlopened(void *);
#ifdef __ARM_EABI__
void * dl_unwind_find_exidx(const void *, int *);
#endif
__END_DECLS
#endif /* _SYS_LINK_ELF_H_ */
