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/**
* @file portability.h
*
* Header file for all the weirdo portability hacks we gotta do.
*/
#ifndef __NJ_LIB_PORTABILITY_H__
#define __NJ_LIB_PORTABILITY_H__
#include <unistd.h>
#include <sys/mman.h>
#include <sys/param.h> // Stupid FBSD...
#include <sys/user.h>
#include <config.h>
#include <lib/util.h>
#include <lib/prefs.h>
/* Try to find NJ_PAGE_SIZE */
#if defined(HAVE_PAGE_SIZE)
# ifndef NJ_PAGE_SIZE
# if defined(PAGE_SIZE)
# define NJ_PAGE_SIZE PAGE_SIZE
# elif defined(EXEC_PAGESIZE)
# define NJ_PAGE_SIZE EXEC_PAGESIZE
# elif defined(NBPG)
# ifndef CLSIZE
# define CLSIZE 1
# endif
# define NJ_PAGE_SIZE (NBPG*CLSIZE)
# elif defined(NBPC)
# define NJ_PAGE_SIZE (NBPC)
# elif defined(PAGESIZE)
# define NJ_PAGE_SIZE PAGESIZE
# endif
# endif
#endif
#if defined(HAVE_PAGE_SHIFT)
# define NJ_PAGE_SHIFT PAGE_SHIFT
#endif
#if defined(HAVE_PAGE_MASK)
# ifdef NEGATE_PAGE_MASK
# define NJ_PAGE_MASK (~PAGE_MASK)
# else
# define NJ_PAGE_MASK PAGE_MASK
# endif
#endif
/* MAP ANONYMOUS */
#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
# define MAP_ANONYMOUS MAP_ANON
#endif
#if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
# define MAP_ANON MAP_ANONYMOUS
#endif
#ifndef MAP_ANON
# define MAP_ANON 0
# define MAP_ANONYMOUS 0
#endif
/* Also in fe/njamd.h */
#ifndef HAVE_VSNPRINTF
# define vsnprintf(s, n, f, ap) vsprintf(s, f, ap)
#endif
#ifndef HAVE_SNPRINTF
# define snprintf(s, n, f, ap...) sprintf(s, f, ## ap)
#endif
extern int __nj_anonfd;
extern nj_addr_t __nj_sbrk0;
extern int __nj_prot;
/* These variables are defined for portability, if the PAGE_SIZE and friends
* aren't available as compile time constants
*/
#ifndef NJ_PAGE_SIZE
# if defined(DEBUG) || defined(EDBUG)
# warning "**** Page Size undefined ****"
# endif
extern u_long NJ_PAGE_SIZE;
#endif
#ifndef NJ_PAGE_MASK
extern u_long NJ_PAGE_MASK;
#endif
#ifndef NJ_PAGE_SHIFT
extern u_long NJ_PAGE_SHIFT;
#endif
void __nj_portability_bootstrap_init(void);
void __nj_portability_fini(void);
void __nj_portability_user_init(struct nj_prefs *prefs);
#endif /*portability.h */
//vim:ts=4
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