fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/*-
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* Copyright (c) 2003 Peter Wemm.
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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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* from: @(#)frame.h 5.2 (Berkeley) 1/18/91
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* $FreeBSD$
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*/
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#ifndef _MACHINE_FRAME_H_
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#define _MACHINE_FRAME_H_ 1
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/*
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* System stack frames.
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*/
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#ifdef __i386__
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/*
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* Exception/Trap Stack Frame
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*/
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struct trapframe {
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int tf_fs;
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int tf_es;
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int tf_ds;
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int tf_edi;
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int tf_esi;
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int tf_ebp;
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int tf_isp;
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int tf_ebx;
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int tf_edx;
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int tf_ecx;
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int tf_eax;
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int tf_trapno;
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/* below portion defined in 386 hardware */
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int tf_err;
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int tf_eip;
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int tf_cs;
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int tf_eflags;
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/* below only when crossing rings (user to kernel) */
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int tf_esp;
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int tf_ss;
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};
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/* Superset of trap frame, for traps from virtual-8086 mode */
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struct trapframe_vm86 {
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int tf_fs;
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int tf_es;
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int tf_ds;
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int tf_edi;
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int tf_esi;
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int tf_ebp;
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int tf_isp;
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int tf_ebx;
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int tf_edx;
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int tf_ecx;
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int tf_eax;
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int tf_trapno;
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/* below portion defined in 386 hardware */
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int tf_err;
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int tf_eip;
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int tf_cs;
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int tf_eflags;
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/* below only when crossing rings (user (including vm86) to kernel) */
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int tf_esp;
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int tf_ss;
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/* below only when crossing from vm86 mode to kernel */
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int tf_vm86_es;
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int tf_vm86_ds;
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int tf_vm86_fs;
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int tf_vm86_gs;
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};
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/*
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* This alias for the MI TRAPF_USERMODE() should be used when we don't
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* care about user mode itself, but need to know if a frame has stack
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* registers. The difference is only logical, but on i386 the logic
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* for using TRAPF_USERMODE() is complicated by sometimes treating vm86
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* bioscall mode (which is a special ring 3 user mode) as kernel mode.
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*/
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#define TF_HAS_STACKREGS(tf) TRAPF_USERMODE(tf)
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#endif /* __i386__ */
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#ifdef __amd64__
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/*
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* Exception/Trap Stack Frame
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*
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* The ordering of this is specifically so that we can take first 6
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* the syscall arguments directly from the beginning of the frame.
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*/
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struct trapframe {
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register_t tf_rdi;
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register_t tf_rsi;
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register_t tf_rdx;
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register_t tf_rcx;
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register_t tf_r8;
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register_t tf_r9;
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register_t tf_rax;
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register_t tf_rbx;
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register_t tf_rbp;
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register_t tf_r10;
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register_t tf_r11;
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register_t tf_r12;
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register_t tf_r13;
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register_t tf_r14;
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register_t tf_r15;
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uint32_t tf_trapno;
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uint16_t tf_fs;
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uint16_t tf_gs;
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register_t tf_addr;
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uint32_t tf_flags;
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uint16_t tf_es;
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uint16_t tf_ds;
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/* below portion defined in hardware */
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register_t tf_err;
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register_t tf_rip;
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register_t tf_cs;
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register_t tf_rflags;
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/* the amd64 frame always has the stack registers */
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register_t tf_rsp;
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register_t tf_ss;
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};
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#define TF_HASSEGS 0x1
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#define TF_HASBASES 0x2
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#define TF_HASFPXSTATE 0x4
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#endif /* __amd64__ */
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#endif /* _MACHINE_FRAME_H_ */
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