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/*-
* Copyright (c) 2009 Joseph Koshy
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $Id: _elftc.h 2064 2011-10-26 15:12:32Z jkoshy $
*/
/**
** Miscellanous definitions needed by multiple components.
**/
#ifndef _ELFTC_H
#define _ELFTC_H
#ifndef NULL
#define NULL ((void *) 0)
#endif
#ifndef offsetof
#define offsetof(T, M) ((int) &((T*) 0) -> M)
#endif
/*
* Supply macros missing from <sys/queue.h>
*/
#ifndef STAILQ_FOREACH_SAFE
#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = STAILQ_FIRST((head)); \
(var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
#ifndef STAILQ_LAST
#define STAILQ_LAST(head, type, field) \
(STAILQ_EMPTY((head)) ? \
NULL : \
((struct type *)(void *) \
((char *)((head)->stqh_last) - offsetof(struct type, field))))
#endif
#ifndef TAILQ_FOREACH_SAFE
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = TAILQ_FIRST((head)); \
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
/*
* VCS Ids.
*/
#ifndef ELFTC_VCSID
#if defined(__FreeBSD__)
#define ELFTC_VCSID(ID) __FBSDID(ID)
#endif
#if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
#if defined(__GNUC__)
#define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"")
#else
#define ELFTC_VCSID(ID) /**/
#endif
#endif
#if defined(__NetBSD__)
#define ELFTC_VCSID(ID) __RCSID(ID)
#endif
#endif /* ELFTC_VCSID */
/*
* Provide an equivalent for getprogname(3).
*/
#ifndef ELFTC_GETPROGNAME
#if defined(__FreeBSD__) || defined(__NetBSD__)
#include <stdlib.h>
#define ELFTC_GETPROGNAME() getprogname()
#endif /* defined(__FreeBSD__) || defined(__NetBSD__) */
#if defined(__linux__)
/*
* GLIBC based systems have a global 'char *' pointer referencing
* the executable's name.
*/
extern const char *program_invocation_short_name;
#define ELFTC_GETPROGNAME() program_invocation_short_name
#endif /* __linux__ */
#endif /* ELFTC_GETPROGNAME */
/**
** Per-OS configuration.
**/
#if defined(__linux__)
#include <endian.h>
#define ELFTC_BYTE_ORDER __BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN __LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN __BIG_ENDIAN
/*
* Debian GNU/Linux is missing strmode(3).
*/
#define ELFTC_HAVE_STRMODE 0
/* Whether we need to supply {be,le}32dec. */
#define ELFTC_NEED_BYTEORDER_EXTENSIONS 1
#define roundup2 roundup
#endif /* __linux__ */
#if defined(__FreeBSD__)
#include <osreldate.h>
#include <sys/endian.h>
#define ELFTC_BYTE_ORDER _BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN
#define ELFTC_HAVE_STRMODE 1
#if __FreeBSD_version <= 900000
#define ELFTC_BROKEN_YY_NO_INPUT 1
#endif
#endif /* __FreeBSD__ */
#if defined(__NetBSD__)
#include <sys/endian.h>
#define ELFTC_BYTE_ORDER _BYTE_ORDER
#define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN
#define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN
#define ELFTC_HAVE_STRMODE 1
#define ELFTC_BROKEN_YY_NO_INPUT 1
#endif /* __NetBSD __ */
#endif /* _ELFTC_H */
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