mirror of
https://codeberg.org/ziglang/zig.git
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Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
124 lines
4.0 KiB
C
Vendored
124 lines
4.0 KiB
C
Vendored
/* $OpenBSD: vmparam.h,v 1.35 2024/03/29 21:06:14 miod Exp $ */
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/* $NetBSD: vmparam.h,v 1.18 2001/05/01 02:19:19 thorpej Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)vmparam.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* Machine dependent constants for sun4u and sun4v UltraSPARC
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*/
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#ifndef VMPARAM_H
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#define VMPARAM_H
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#define USRSTACK 0xffffffffffffe000L
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/*
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* Virtual memory related constants, all in bytes
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*/
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/*
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* Since the compiler generates `call' instructions we can't
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* have more than 4GB in a single text segment.
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*
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* And since we only have a 40-bit address space, allow half
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* of that for data and the other half for stack.
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*/
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#ifndef MAXTSIZ
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#define MAXTSIZ (1L*1024*1024*1024) /* max text size */
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#endif
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#ifndef DFLDSIZ
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#define DFLDSIZ (128L*1024*1024) /* initial data size limit */
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#endif
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#ifndef MAXDSIZ
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#define MAXDSIZ (8L*1024*1024*1024) /* max data size */
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#endif
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#ifndef BRKSIZ
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#define BRKSIZ MAXDSIZ /* heap gap size */
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#endif
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#ifndef DFLSSIZ
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#define DFLSSIZ (2L*1024*1024) /* initial stack size limit */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (32L*1024*1024) /* max stack size */
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#endif
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#define STACKGAP_RANDOM 256*1024
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/*
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* Size of shared memory map
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*/
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#ifndef SHMMAXPGS
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#define SHMMAXPGS 4096 /* 32mb */
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#endif
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/*
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* Size of User Raw I/O map
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*/
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#define USRIOSIZE 300
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/*
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* Mach derived constants
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*/
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/*
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* User/kernel map constants.
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*/
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#define VM_MIN_ADDRESS ((vaddr_t)PAGE_SIZE)
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#define VM_MAX_ADDRESS ((vaddr_t)-1)
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#define VM_MAXUSER_ADDRESS ((vaddr_t)-PAGE_SIZE)
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#ifdef _KERNEL
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#define VM_MIN_STACK_ADDRESS ((vaddr_t)0xfffffe0000000000L)
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#endif
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/* map PIE into the first quarter of the address space before hole */
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#define VM_PIE_MIN_ADDR PAGE_SIZE
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#define VM_PIE_MAX_ADDR 0x10000000000
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#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)KERNBASE)
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0x000007ffffffffffL)
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/* virtual sizes (bytes) for various kernel submaps */
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#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
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#define VM_PHYSSEG_MAX 32 /* up to 32 segments */
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
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#define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
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#endif |