c43b35423e
as argument passed by value' trick, as gcc 3.3.x makes (valid) assumptions about the stack that will not be true. Costs 2 instructions per trap/syscall on i386, 4 per interrupt for MP. One instruction per trap/syscall on amd64, 2 per interrupt for MP. I expect gcc 3.3.1 to make up for this by better optimization (it'd better..) While here, make amd64 compile again by using subr_mbr_disk.c
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/* $NetBSD: proc.h,v 1.3 2003/08/20 21:48:52 fvdl Exp $ */
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/*
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* Copyright (c) 1991 Regents of the University of California.
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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 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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* @(#)proc.h 7.1 (Berkeley) 5/15/91
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*/
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#ifndef _AMD64_PROC_H
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#define _AMD64_PROC_H
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#include <machine/frame.h>
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/*
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* Machine-dependent part of the proc structure for amd64.
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*/
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struct mdlwp {
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struct trapframe *md_regs; /* registers on current frame */
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int md_flags; /* machine-dependent flags */
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int md_tss_sel; /* TSS selector */
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};
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struct mdproc {
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int md_flags;
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/* Syscall handling function */
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void (*md_syscall) __P((struct trapframe *));
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__volatile int md_astpending;
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};
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/* md_flags */
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#define MDP_USEDFPU 0x0001 /* has used the FPU */
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#define MDP_COMPAT 0x0002 /* x86 compatibility process */
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#define MDP_SYSCALL 0x0004 /* entered kernel via syscall ins */
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#define MDP_USEDMTRR 0x0008 /* has set volatile MTRRs */
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#define MDP_IRET 0x0010 /* return via iret, not sysret */
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#endif /* _AMD64_PROC_H */
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