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PDP-10.klh10/src/cenv.h

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/* CENV.H - General C Environment Definitions
*/
/* $Id: cenv.h,v 2.6 2002/03/28 16:48:50 klh Exp $
*/
/* Copyright © 2001 Kenneth L. Harrenstien
** All Rights Reserved
**
** This file is part of the KLH10 Distribution. Use, modification, and
** re-distribution is permitted subject to the terms in the file
** named "LICENSE", which contains the full text of the legal notices
** and should always accompany this Distribution.
**
** This software is provided "AS IS" with NO WARRANTY OF ANY KIND.
**
** This notice (including the copyright and warranty disclaimer)
** must be included in all copies or derivations of this software.
*/
/*
* $Log: cenv.h,v $
* Revision 2.6 2002/03/28 16:48:50 klh
* First pass at using LFS (Large File Support)
*
* Revision 2.5 2002/03/21 09:44:43 klh
* Added DECOSF to CENV_SYSF_TERMIOS
*
* Revision 2.4 2001/11/10 21:28:59 klh
* Final 2.0 distribution checkin
*
*/
/* C environment config definitions, used by various KLH programs.
**
** These specify the TARGET platform, usually but not necessarily the one
** being compiled on.
**
** CENV_CPU_x = target CPU architecture
** CENV_SYS_x = target OS
** CENV_SYSF_x = target OS features
**
** Note that the CPU and SYS are expected to be explicitly specified by
** a command line definition. If no setting is detected this code tries
** a few simple checks, but it is not an error if nothing is set; the
** includer may have portable defaults.
*/
#ifndef CENV_INCLUDED
#define CENV_INCLUDED 1
#ifdef RCSID
RCSID(cenv_h,"$Id: cenv.h,v 2.6 2002/03/28 16:48:50 klh Exp $")
#endif
/* Include the configure-generated definitions */
#include "config.h"
/* Machine architecture - alpha order */
#ifndef CENV_CPU_ALPHA /* DEC Alpha AXP series */
# define CENV_CPU_ALPHA 0
#endif
#ifndef CENV_CPU_ARM /* DEC/Intel ARM series */
# define CENV_CPU_ARM 0
#endif
#ifndef CENV_CPU_I386 /* Intel 386 and up series */
# define CENV_CPU_I386 0
#endif
#ifndef CENV_CPU_M68 /* Motorola MC680x0 series */
# define CENV_CPU_M68 0
#endif
#ifndef CENV_CPU_PDP10 /* DEC PDP10 series */
# define CENV_CPU_PDP10 0
#endif
#ifndef CENV_CPU_PPC /* IBM/Motorola PowerPC series */
# define CENV_CPU_PPC 0
#endif
#ifndef CENV_CPU_SPARC /* SUN SPARC series */
# define CENV_CPU_SPARC 0
#endif
/* If none of the above were set, try a few semi-standard checks,
* but don't complain if nothing's found.
*/
#if !(CENV_CPU_M68|CENV_CPU_SPARC|CENV_CPU_PDP10|CENV_CPU_I386 \
|CENV_CPU_ALPHA|CENV_CPU_PPC)
# if defined(__alpha) || defined(__alpha__) || defined(__x86_64__) || defined(__amd64__)
# undef CENV_CPU_ALPHA
# define CENV_CPU_ALPHA 1
# elif defined(__arm) || defined(__arm__)
# undef CENV_CPU_ARM
# define CENV_CPU_ARM 1
# elif defined(__i386) || defined(__i386__)
# undef CENV_CPU_I386
# define CENV_CPU_I386 1
# elif defined(__ppc) || defined(__ppc__)
# undef CENV_CPU_PPC
# define CENV_CPU_PPC 1
# elif defined(__sparc) || defined(__sparc__)
# undef CENV_CPU_SPARC
# define CENV_CPU_SPARC 1
# elif defined(__COMPILER_KCC__)
# undef CENV_CPU_PDP10 /* Not quite right, but close enough */
# define CENV_CPU_PDP10 1
# endif
#endif
/* Specific CPU Feature defs
This only has features of interest for KLH10 software.
Note: endian-ness cannot be assumed if CPU is unknown.
Note: PowerPC is inherently big-endian, but can support little-endian
memory addressing! Platforms so far (Linux & MacOS) use
big-endian model, but NT/W2K may require little-endian.
*/
#ifndef CENV_CPUF_BIGEND /* True if big-endian */
# define CENV_CPUF_BIGEND (CENV_CPU_SPARC|CENV_CPU_M68|CENV_CPU_PDP10 \
|CENV_CPU_PPC)
#endif
#ifndef CENV_CPUF_LILEND /* True if little-endian */
# define CENV_CPUF_LILEND (CENV_CPU_I386|CENV_CPU_ALPHA|CENV_CPU_ARM)
#endif
/* Operating System - alpha order */
#ifndef CENV_SYS_BSDI /* 386 BSDI */
# define CENV_SYS_BSDI 0
#endif
#ifndef CENV_SYS_DECOSF /* DEC OSF/1 (Digital Unix, Tru64) */
# define CENV_SYS_DECOSF 0
#endif
#ifndef CENV_SYS_FREEBSD /* FreeBSD */
# define CENV_SYS_FREEBSD 0
#endif
#ifndef CENV_SYS_LINUX /* Linux */
# define CENV_SYS_LINUX 0
#endif
#ifndef CENV_SYS_MAC /* Apple Mac (classic, pre-X) */
# define CENV_SYS_MAC 0
#endif
#ifndef CENV_SYS_NETBSD /* NetBSD */
# define CENV_SYS_NETBSD 0
#endif
#ifndef CENV_SYS_NEXT /* NeXT */
# define CENV_SYS_NEXT 0
#endif
#ifndef CENV_SYS_OPENBSD /* OpenBSD */
# define CENV_SYS_OPENBSD 0
#endif
#ifndef CENV_SYS_SOLARIS /* SunOS 5.x */
# define CENV_SYS_SOLARIS 0
#endif
#ifndef CENV_SYS_SUN /* SunOS 4.x */
# define CENV_SYS_SUN 0
#endif
#ifndef CENV_SYS_T20 /* DEC TOPS-20 */
# define CENV_SYS_T20 0
#endif
#ifndef CENV_SYS_V7 /* Basic vanilla Unix */
# define CENV_SYS_V7 0
#endif
#ifndef CENV_SYS_W2K /* MS W2K */
# define CENV_SYS_W2K 0
#endif
/* If none of the above were set, try a few semi-standard checks,
* but don't complain if nothing's found.
*/
#if !(CENV_SYS_V7|CENV_SYS_SUN|CENV_SYS_SOLARIS|CENV_SYS_NEXT|CENV_SYS_MAC \
|CENV_SYS_BSDI|CENV_SYS_NETBSD|CENV_SYS_FREEBSD|CENV_SYS_OPENBSD \
|CENV_SYS_DECOSF|CENV_SYS_LINUX|CENV_SYS_W2K)
# if defined(__osf__) && defined(__digital__)
# undef CENV_SYS_DECOSF
# define CENV_SYS_DECOSF 1
# elif defined(__FreeBSD__)
# undef CENV_SYS_FREEBSD
# define CENV_SYS_FREEBSD 1
# elif defined(__linux__)
# undef CENV_SYS_LINUX
# define CENV_SYS_LINUX 1
# elif defined(__APPLE__) && !defined(__MACH__)
# undef CENV_SYS_MAC
# define CENV_SYS_MAC 1
# elif defined(__APPLE__) && defined(__MACH__)
# define CENV_SYS_BSD 1
# define CENV_SYS_XBSD 1
# elif defined(__NetBSD__)
# undef CENV_SYS_NETBSD
# define CENV_SYS_NETBSD 1
# elif defined(__OpenBSD__)
# undef CENV_SYS_OPENBSD
# define CENV_SYS_OPENBSD 1
# elif defined(__sun) && defined(__SVR4)
# undef CENV_SYS_SOLARIS
# define CENV_SYS_SOLARIS 1
# elif defined(__COMPILER_KCC__)
# undef CENV_SYS_T20 /* Not quite right, but close enough */
# define CENV_SYS_T20 1
# endif
#endif
/* Derive composite switches - may not be entirely accurate,
but close enough.
*/
#ifndef CENV_SYS_XBSD /* All modern BSD variants */
# define CENV_SYS_XBSD (CENV_SYS_NETBSD|CENV_SYS_FREEBSD|CENV_SYS_OPENBSD)
#endif
#ifndef CENV_SYS_BSD /* For any BSD-generic stuff (TTY, time) */
# define CENV_SYS_BSD (CENV_SYS_SUN|CENV_SYS_SOLARIS|CENV_SYS_BSDI \
|CENV_SYS_XBSD|CENV_SYS_NEXT|CENV_SYS_DECOSF \
|CENV_SYS_LINUX)
#endif
#define CENV_SYS_SVR4 0 /* XXX Later: (CENV_SYS_SOLARIS|CENV_SYS_DECOSF) ? */
#define CENV_SYS_UNIX (CENV_SYS_V7|CENV_SYS_BSD|CENV_SYS_SVR4) /* Any Unix */
/* Specific OS Feature defs
This only has features of interest for KLH10 software.
*/
#ifndef CENV_SYSF_BSDTIMEVAL /* Has "timeval" struct & calls */
# define CENV_SYSF_BSDTIMEVAL (CENV_SYS_UNIX && !CENV_SYS_V7)
#endif
#ifndef CENV_SYSF_TERMIOS /* Has termios(3) tty stuff */
# define CENV_SYSF_TERMIOS (CENV_SYS_DECOSF|CENV_SYS_SOLARIS|CENV_SYS_XBSD \
|CENV_SYS_LINUX)
#endif
#ifndef CENV_SYSF_BSDTTY /* Has old BSD tty stuff */
# define CENV_SYSF_BSDTTY (!CENV_SYSF_TERMIOS && CENV_SYS_BSD)
#endif
#ifndef CENV_SYSF_SIGSET /* Has sigsetops(3) and sigaction(2) */
# define CENV_SYSF_SIGSET (CENV_SYS_DECOSF|CENV_SYS_SUN|CENV_SYS_SOLARIS \
|CENV_SYS_XBSD|CENV_SYS_LINUX)
#endif
#ifndef CENV_SYSF_NANOSLEEP /* Has nanosleep(2) */
# define CENV_SYSF_NANOSLEEP (CENV_SYS_DECOSF|CENV_SYS_SOLARIS|CENV_SYS_XBSD \
|CENV_SYS_LINUX)
#endif
/* Large File Support (LFS)
* See <http://ftp.sas.com/standards/large.file/x_open.20Mar96.html>
*
* DECOSF: default 64-bit (no macros); fseek 64-bit; no fseeko.
* FREEBSD: default 64-bit (no macros); fseek 32-bit; has fseeko.
* LINUX: default 32-bit (need macro); fseek 32-bit; has fseeko (need macro).
* SOLARIS: default 32-bit (need macro); fseek 32-bit; has fseeko (need macro).
* NETBSD: default 64-bit (no macros); fseek 32-bit; no fseeko. (ugh!)
* MAC/OTH: ? Assume 32-bit OS only, 64 not possible.
*/
#ifndef CENV_SYSF_LFS /* Predefining this must predefine the rest */
# if defined(SIZEOF_OFF_T) /* system inspected by configure */
# if SIZEOF_OFF_T == 0 || SIZEOF_OFF_T == 4
# define CENV_SYSF_LFS 0 /* No off_t, use long */
# define CENV_SYSF_LFS_FMT "l" /* printf format is long */
# elif SIZEOF_OFF_T == 8
# define CENV_SYSF_LFS 64 /* off_t exists and has 64 bits */
# if SIZEOF_OFF_T == SIZEOF_LONG
# define CENV_SYSF_LFS_FMT "l" /* printf format is long */
# elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
# define CENV_SYSF_LFS_FMT "ll" /* printf format is long long */
# endif
# endif
# define CENV_SYSF_FSEEKO HAVE_FSEEKO
/* FreeBSD defaults to 64-bit file off_t but calls the type "quad_t"
* instead of "long long". Always has fseeko.
*/
# elif CENV_SYS_FREEBSD
# define CENV_SYSF_LFS 64 /* off_t exists and has 64 bits */
# define CENV_SYSF_FSEEKO 1 /* And have some flavor of fseeko */
# define CENV_SYSF_LFS_FMT "q" /* printf format is quad_t */
/* Alpha OSF/DU/Tru64 use 64-bit longs
*/
# elif CENV_SYS_DECOSF
# define CENV_SYSF_LFS 64 /* off_t exists and has 64 bits */
# define CENV_SYSF_FSEEKO 1 /* And have some flavor of fseeko */
# define fseeko fseek /* off_t == long and no fseeko */
# define CENV_SYSF_LFS_FMT "l" /* printf format is long */
/* Solaris/Linux do not default to 64-bit; must define these macros
* and make sure cenv.h comes before any other include files.
*/
# elif CENV_SYS_SOLARIS|CENV_SYS_LINUX
# define CENV_SYSF_LFS 64 /* off_t exists and has 64 bits */
# define CENV_SYSF_FSEEKO 1 /* And have some flavor of fseeko */
# ifndef _FILE_OFFSET_BITS
# define _FILE_OFFSET_BITS 64 /* Use 64-bit file ops */
# endif
# ifndef _LARGEFILE_SOURCE
# define _LARGEFILE_SOURCE /* Include fseeko, ftello, etc */
# endif
# define CENV_SYSF_LFS_FMT "ll" /* printf format is long long */
/* Unknown system, but check for existence of standard macros */
# elif _FILE_OFFSET_BITS >= 64
# define CENV_SYSF_LFS _FILE_OFFSET_BITS /* Assume off_t exists */
# define CENV_SYSF_FSEEKO 1 /* Also assume fseeko */
# define CENV_SYSF_LFS_FMT "ll" /* printf fmt probably (!) long long */
/* Out of luck, using plain old longs (likely 32-bit) */
# else
# define CENV_SYSF_LFS 0 /* No off_t, use long */
# define CENV_SYSF_FSEEKO 0 /* No fseeko (irrelevant) */
# define CENV_SYSF_LFS_FMT "l" /* printf format is long */
# endif
#endif /* ifndef CENV_SYSF_LFS */
#endif /* ifndef CENV_INCLUDED */
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