From a42cf80a9d49ee5101f3ef09b10ebe4c4094a465 Mon Sep 17 00:00:00 2001 From: Jeff Johnston Date: Fri, 18 Oct 2002 22:52:40 +0000 Subject: 2002-10-18 Jeff Johnston * libc/sys/linux/machine/i386/include/endian.h: New file. * libc/sys/linux/machine/i386/include/param.h: Ditto. --- newlib/ChangeLog | 5 + .../libc/sys/linux/machine/i386/include/endian.h | 116 ++++++++++++++ newlib/libc/sys/linux/machine/i386/include/param.h | 178 +++++++++++++++++++++ 3 files changed, 299 insertions(+) create mode 100644 newlib/libc/sys/linux/machine/i386/include/endian.h create mode 100644 newlib/libc/sys/linux/machine/i386/include/param.h diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 3c1c6d0e0..46616f35e 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,8 @@ +2002-10-18 Jeff Johnston + + * libc/sys/linux/machine/i386/include/endian.h: New file. + * libc/sys/linux/machine/i386/include/param.h: Ditto. + 2002-10-18 Jeff Johnston * libm/machine/i386/aclocal.m4: Regenerated. diff --git a/newlib/libc/sys/linux/machine/i386/include/endian.h b/newlib/libc/sys/linux/machine/i386/include/endian.h new file mode 100644 index 000000000..aa9cd90a3 --- /dev/null +++ b/newlib/libc/sys/linux/machine/i386/include/endian.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 1987, 1991 Regents of the University of California. + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * from: @(#)endian.h 7.8 (Berkeley) 4/3/91 + * $Id$ + */ + +#ifndef _MACHINE_ENDIAN_H_ +#define _MACHINE_ENDIAN_H_ + +/* + * Define the order of 32-bit words in 64-bit words. + */ +#define _QUAD_HIGHWORD 1 +#define _QUAD_LOWWORD 0 + +/* + * Definitions for byte order, according to byte significance from low + * address to high. + */ +#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */ +#define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */ +#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */ + +#define BYTE_ORDER LITTLE_ENDIAN + +#ifndef KERNEL +#include +#endif + +#include + +__BEGIN_DECLS +unsigned long htonl __P((unsigned long)); +unsigned short htons __P((unsigned short)); +unsigned long ntohl __P((unsigned long)); +unsigned short ntohs __P((unsigned short)); +__END_DECLS + +#define __word_swap_long(x) \ +__extension__ ({ register u_long __X = (x); \ + __asm ("rorl $16, %1" \ + : "=r" (__X) \ + : "0" (__X)); \ + __X; }) + +#if defined(KERNEL) && (defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU)) && !defined(I386_CPU) + +#define __byte_swap_long(x) \ +__extension__ ({ register u_long __X = (x); \ + __asm ("bswap %0" \ + : "=r" (__X) \ + : "0" (__X)); \ + __X; }) +#else + +#define __byte_swap_long(x) \ +__extension__ ({ register u_long __X = (x); \ + __asm ("xchgb %h1, %b1\n\trorl $16, %1\n\txchgb %h1, %b1" \ + : "=q" (__X) \ + : "0" (__X)); \ + __X; }) +#endif + +#define __byte_swap_word(x) \ +__extension__ ({ register u_short __X = (x); \ + __asm ("xchgb %h1, %b1" \ + : "=q" (__X) \ + : "0" (__X)); \ + __X; }) + +/* + * Macros for network/external number representation conversion. + */ +#ifdef __GNUC__ +#define ntohl __byte_swap_long +#define ntohs __byte_swap_word +#define htonl __byte_swap_long +#define htons __byte_swap_word +#endif + +#define NTOHL(x) ((x) = ntohl((u_long)(x))) +#define NTOHS(x) ((x) = ntohs((u_short)(x))) +#define HTONL(x) ((x) = htonl((u_long)(x))) +#define HTONS(x) ((x) = htons((u_short)(x))) + +#endif /* !_MACHINE_ENDIAN_H_ */ diff --git a/newlib/libc/sys/linux/machine/i386/include/param.h b/newlib/libc/sys/linux/machine/i386/include/param.h new file mode 100644 index 000000000..fbe1be2ac --- /dev/null +++ b/newlib/libc/sys/linux/machine/i386/include/param.h @@ -0,0 +1,178 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * from: @(#)param.h 5.8 (Berkeley) 6/28/91 + * $FreeBSD: src/sys/i386/include/param.h,v 1.62 2001/09/12 08:37:33 julian Exp $ + */ + +/* + * Machine dependent constants for Intel 386. + */ + +#ifndef _MACHINE_PARAM_H_ +#define _MACHINE_PARAM_H_ + +#ifndef MACHINE +#define MACHINE "i386" +#endif +#ifndef MACHINE_ARCH +#define MACHINE_ARCH "i386" +#endif +#define MID_MACHINE MID_I386 + +/* Endian-ness */ +#ifndef BIG_ENDIAN +#define BIG_ENDIAN 4321 +#endif +#ifndef LITTLE_ENDIAN +#define LITTLE_ENDIAN 1234 +#endif + +#define BYTE_ORDER LITTLE_ENDIAN + +/* + * OBJFORMAT_NAMES is a comma-separated list of the object formats + * that are supported on the architecture. + */ +#define OBJFORMAT_NAMES "elf", "aout" +#define OBJFORMAT_DEFAULT "elf" + +#define MAXHOSTNAMELEN 64 + +#ifdef SMP +#define MAXCPU 16 +#else +#define MAXCPU 1 +#endif /* SMP */ + +#define ALIGNBYTES _ALIGNBYTES +#define ALIGN(p) _ALIGN(p) + +#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) + +#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t))) +#define PDRSHIFT 22 /* LOG2(NBPDR) */ +#define NBPDR (1<>PAGE_SHIFT) + +/* + * btodb() is messy and perhaps slow because `bytes' may be an off_t. We + * want to shift an unsigned type to avoid sign extension and we don't + * want to widen `bytes' unnecessarily. Assume that the result fits in + * a daddr_t. + */ +#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \ + (sizeof (bytes) > sizeof(long) \ + ? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \ + : (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT)) + +#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \ + ((off_t)(db) << DEV_BSHIFT) + +/* + * Mach derived conversion macros + */ +#define trunc_page(x) ((x) & ~PAGE_MASK) +#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) +#define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK) +#define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK) + +#define atop(x) ((unsigned)(x) >> PAGE_SHIFT) +#define ptoa(x) ((unsigned)(x) << PAGE_SHIFT) + +#define i386_btop(x) ((unsigned)(x) >> PAGE_SHIFT) +#define i386_ptob(x) ((unsigned)(x) << PAGE_SHIFT) + +#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) + +#endif /* !_MACHINE_PARAM_H_ */ -- cgit v1.2.3