85f1c223b3
was using them exits. Don't allow a user process to cause the kernel to take a TRCTRAP on a user space address. Reviewed by: jlemon, sef Approved by: jkh
102 lines
4.2 KiB
C
102 lines
4.2 KiB
C
/*-
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* Copyright (c) 1995 Bruce D. Evans.
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* All rights reserved.
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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 author nor the names of 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 AUTHOR 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 AUTHOR 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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* $FreeBSD$
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*/
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#ifndef _MACHINE_MD_VAR_H_
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#define _MACHINE_MD_VAR_H_
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/*
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* Miscellaneous machine-dependent declarations.
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*/
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extern int Maxmem;
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extern u_int atdevbase; /* offset in virtual memory of ISA io mem */
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extern void (*bcopy_vector) __P((const void *from, void *to, size_t len));
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extern int busdma_swi_pending;
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extern int (*copyin_vector) __P((const void *udaddr, void *kaddr,
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size_t len));
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extern int (*copyout_vector) __P((const void *kaddr, void *udaddr,
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size_t len));
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extern u_int cpu_feature;
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extern u_int cpu_high;
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extern u_int cpu_id;
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extern char cpu_vendor[];
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extern u_int cyrix_did;
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extern char kstack[];
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#ifdef PC98
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extern int need_pre_dma_flush;
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extern int need_post_dma_flush;
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#endif
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extern void (*netisrs[32]) __P((void));
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extern int nfs_diskless_valid;
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extern void (*ovbcopy_vector) __P((const void *from, void *to, size_t len));
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extern char sigcode[];
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extern int szsigcode, szosigcode;
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typedef void alias_for_inthand_t __P((u_int cs, u_int ef, u_int esp, u_int ss));
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struct proc;
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struct reg;
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struct fpreg;
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struct dbreg;
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void bcopyb __P((const void *from, void *to, size_t len));
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void busdma_swi __P((void));
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void cpu_halt __P((void));
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void cpu_reset __P((void));
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void cpu_switch_load_gs __P((void)) __asm(__STRING(cpu_switch_load_gs));
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void doreti_iret __P((void)) __asm(__STRING(doreti_iret));
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void doreti_iret_fault __P((void)) __asm(__STRING(doreti_iret_fault));
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void doreti_popl_ds __P((void)) __asm(__STRING(doreti_popl_ds));
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void doreti_popl_ds_fault __P((void)) __asm(__STRING(doreti_popl_ds_fault));
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void doreti_popl_es __P((void)) __asm(__STRING(doreti_popl_es));
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void doreti_popl_es_fault __P((void)) __asm(__STRING(doreti_popl_es_fault));
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void doreti_popl_fs __P((void)) __asm(__STRING(doreti_popl_fs));
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void doreti_popl_fs_fault __P((void)) __asm(__STRING(doreti_popl_fs_fault));
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int fill_fpregs __P((struct proc *, struct fpreg *));
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int fill_regs __P((struct proc *p, struct reg *regs));
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int fill_dbregs __P((struct proc *p, struct dbreg *dbregs));
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void fillw __P((int /*u_short*/ pat, void *base, size_t cnt));
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void i486_bzero __P((void *buf, size_t len));
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void i586_bcopy __P((const void *from, void *to, size_t len));
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void i586_bzero __P((void *buf, size_t len));
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int i586_copyin __P((const void *udaddr, void *kaddr, size_t len));
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int i586_copyout __P((const void *kaddr, void *udaddr, size_t len));
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void i686_pagezero __P((void *addr));
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int is_physical_memory __P((vm_offset_t addr));
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u_long kvtop __P((void *addr));
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void setidt __P((int idx, alias_for_inthand_t *func, int typ, int dpl,
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int selec));
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void swi_vm __P((void));
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void userconfig __P((void));
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int user_dbreg_trap __P((void));
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int vm_page_zero_idle __P((void));
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#endif /* !_MACHINE_MD_VAR_H_ */
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