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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.
108 lines
3.7 KiB
C
Vendored
108 lines
3.7 KiB
C
Vendored
/* $OpenBSD: vmparam.h,v 1.57 2021/03/16 18:04:16 kurt Exp $ */
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/* $NetBSD: vmparam.h,v 1.15 1994/10/27 04:16:34 cgd Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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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 5.9 (Berkeley) 5/12/91
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*/
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#ifndef _MACHINE_VMPARAM_H_
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#define _MACHINE_VMPARAM_H_
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/*
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* Machine dependent constants for 386.
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*/
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#define USRSTACK VM_MAXUSER_ADDRESS
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/*
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* Virtual memory related constants, all in bytes
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*/
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#define MAXTSIZ (256*1024*1024) /* max text size */
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#ifndef DFLDSIZ
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#define DFLDSIZ (64*1024*1024) /* initial data size limit */
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#endif
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#ifndef MAXDSIZ
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#define MAXDSIZ (3UL*1024*1024*1024) /* max data size */
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#endif
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#ifndef BRKSIZ
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#define BRKSIZ (128*1024*1024) /* heap gap size */
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#endif
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#ifndef DFLSSIZ
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#define DFLSSIZ (4*1024*1024) /* initial stack size limit */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (32*1024*1024) /* max stack size */
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#endif
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#define STACKGAP_RANDOM 256*1024
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/* I386 has a line where all code is executable: 0 - I386_MAX_EXE_ADDR */
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#define I386_MAX_EXE_ADDR 0x20000000 /* exec line */
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/* map PIE into 320MB - 448MB address range */
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#define VM_PIE_MIN_ADDR 0x14000000
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#define VM_PIE_MAX_ADDR 0x1C000000
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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 8192
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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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* Specific addresses being unmapped and used as fillers for free memory.
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*/
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#define DEADBEEF0 0xefffeecc /* malloc's filler */
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#define DEADBEEF1 0xefffaabb /* pool's filler */
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/* user/kernel map constants */
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#define VM_MIN_ADDRESS ((vaddr_t)PAGE_SIZE)
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#define VM_MAXUSER_ADDRESS ((vaddr_t)((PDSLOT_PTE<<PDSHIFT) - (2 * PAGE_SIZE)))
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#define VM_MAX_ADDRESS ((vaddr_t)((PDSLOT_PTE<<PDSHIFT) + \
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(PDSLOT_PTE<<PAGE_SHIFT)))
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#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)KERNBASE)
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)(PDSLOT_APTE<<PDSHIFT))
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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 16 /* actually we could have this many 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 /* _MACHINE_VMPARAM_H_ */ |