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/* Run-time dynamic linker data structures for loaded ELF shared objects.
Copyright (C) 2001, 2002, 2003, 2006, 2009, 2010 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _LDSODEFS_H
#include <libc-abis.h>
#include <kernel-features.h>
/* Get the real definitions. */
#include_next <ldsodefs.h>
/* Now define our stuff. */
/* We have the auxiliary vector. */
#define HAVE_AUX_VECTOR
/* Used by static binaries to check the auxiliary vector. */
extern void _dl_aux_init (ElfW(auxv_t) *av) internal_function;
/* Initialization which is normally done by the dynamic linker. */
extern void _dl_non_dynamic_init (void) internal_function;
/* We can assume that the kernel always provides the AT_UID, AT_EUID,
AT_GID, and AT_EGID values in the auxiliary vector from 2.4.0 or so on. */
#if __ASSUME_AT_XID
# define HAVE_AUX_XID
#endif
/* We can assume that the kernel always provides the AT_SECURE value
in the auxiliary vector from 2.5.74 or so on. */
#if __ASSUME_AT_SECURE
# define HAVE_AUX_SECURE
#endif
/* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
up the page size information. */
#if __ASSUME_AT_PAGESIZE
# define HAVE_AUX_PAGESIZE
#endif
/* Accept binaries which identify the binary as using Linux extensions. */
#define VALID_ELF_HEADER(hdr,exp,size) (memcmp (hdr, exp, size) == 0 \
|| memcmp (hdr, expected2, size) == 0)
#define VALID_ELF_OSABI(osabi) (osabi == ELFOSABI_SYSV \
|| osabi == ELFOSABI_LINUX)
#define VALID_ELF_ABIVERSION(osabi,ver) \
(ver == 0 || (osabi == ELFOSABI_LINUX && ver < LIBC_ABI_MAX))
#define MORE_ELF_HEADER_DATA \
static const unsigned char expected2[EI_PAD] = \
{ \
[EI_MAG0] = ELFMAG0, \
[EI_MAG1] = ELFMAG1, \
[EI_MAG2] = ELFMAG2, \
[EI_MAG3] = ELFMAG3, \
[EI_CLASS] = ELFW(CLASS), \
[EI_DATA] = byteorder, \
[EI_VERSION] = EV_CURRENT, \
[EI_OSABI] = ELFOSABI_LINUX \
}
#endif /* ldsodefs.h */
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