glibc/sysdeps/unix/sysv/linux/x86_64/bits/environments.h
Ulrich Drepper 28f367c4e3 Update.
* posix/Makefile (install-others): Add $(inst_libexecdir)/getconf.
	(CFLAGS-sysconf.c): Add -D_GETCONF_DIR.
	(CFLAGS-getconf.c): New.
	($(inst_libexecdir)/getconf): New.
	* posix/confstr.c (confstr): Use __sysconf to query specifications
	that don't have _POSIX_V6_* macros defined.  Use __*_{C,LD}FLAGS
	macros defined in bits/environments.h.
	* sysdeps/posix/sysconf.c: Include stdlib.h, string.h and
	sys/stat.h.
	(__sysconf_check_spec): New routine.
	(__sysconf): Use it.
	* posix/getconf.c (specs): Change into structure array.
	(main): If -v is not given, try to get default from
	$(libexecdir)/getconf/default.  If specification is not
	supported by this getconf, try to execute
	$(libexecdir)/getconf/$(specification).
	* sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h: New file.
	* sysdeps/unix/sysv/linux/s390/bits/environments.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/bits/environments.h: New file.
	* sysdeps/unix/sysv/linux/sparc/bits/environments.h: New file.
	* sysdeps/unix/sysv/linux/i386/bits/environments.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/environments.h: New file.
	* sysdeps/generic/bits/environments.h (__ILP32_OFFBIG_CFLAGS):
	Define.

2004-11-26  Jakub Jelinek  <jakub@redhat.com>
2004-11-26 08:16:33 +00:00

88 lines
3.2 KiB
C

/* Copyright (C) 1999, 2001, 2004 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _UNISTD_H
# error "Never include this file directly. Use <unistd.h> instead"
#endif
#include <bits/wordsize.h>
/* This header should define the following symbols under the described
situations. A value `1' means that the model is always supported,
`-1' means it is never supported. Undefined means it cannot be
statically decided.
_POSIX_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
_POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
_POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
_POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
_XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
and are available only for compatibility.
*/
#if __WORDSIZE == 64
/* Environments with 32-bit wide pointers are optionally provided.
Therefore following macros aren't defined:
# undef _POSIX_V6_ILP32_OFF32
# undef _POSIX_V6_ILP32_OFFBIG
# undef _XBS5_ILP32_OFF32
# undef _XBS5_ILP32_OFFBIG
and users need to check at runtime. */
/* We also have no use (for now) for an environment with bigger pointers
and offsets. */
# define _POSIX_V6_LPBIG_OFFBIG -1
# define _XBS5_LPBIG_OFFBIG -1
/* By default we have 64-bit wide `long int', pointers and `off_t'. */
# define _POSIX_V6_LP64_OFF64 1
# define _XBS5_LP64_OFF64 1
#else /* __WORDSIZE == 32 */
/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
and all platforms support LFS. */
# define _POSIX_V6_ILP32_OFF32 1
# define _POSIX_V6_ILP32_OFFBIG 1
# define _XBS5_ILP32_OFF32 1
# define _XBS5_ILP32_OFFBIG 1
/* We optionally provide an environment with the above size but an 64-bit
side `off_t'. Therefore we don't define _XBS5_ILP32_OFFBIG. */
/* Environments with 64-bit wide pointers can be provided,
so these macros aren't defined:
# undef _POSIX_V6_LP64_OFF64
# undef _POSIX_V6_LPBIG_OFFBIG
# undef _XBS5_LP64_OFF64
# undef _XBS5_LPBIG_OFFBIG
and sysconf tests for it at runtime. */
#endif /* __WORDSIZE == 32 */
#define __ILP32_OFF32_CFLAGS "-m32"
#define __ILP32_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
#define __ILP32_OFF32_LDFLAGS "-m32"
#define __ILP32_OFFBIG_LDFLAGS "-m32"
#define __LP64_OFF64_CFLAGS "-m64"
#define __LP64_OFF64_LDFLAGS "-m64"