freebsd-dev/sys/amd64/include/frame.h
Peter Wemm 0fe93e7480 For the page fault handler, save %cr2 in the outer trap handler so that
we do not have to run so long with interrupts disabled.  This involved
creating tf_addr in the trapframe.  Reorganize the trap stubs so that
they consistently reserve the stack space and initialize any missing
bits.

Approved by:	re (amd64 stuff)
2003-05-12 18:33:19 +00:00

142 lines
4.1 KiB
C

/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)frame.h 5.2 (Berkeley) 1/18/91
* $FreeBSD$
*/
#ifndef _MACHINE_FRAME_H_
#define _MACHINE_FRAME_H_ 1
/*
* System stack frames.
*/
/*
* Exception/Trap Stack Frame
*
* The ordering of this is specifically so that we can take first 6
* the syscall arguments directly from the beginning of the frame.
*/
struct trapframe {
register_t tf_rdi;
register_t tf_rsi;
register_t tf_rdx;
register_t tf_rcx;
register_t tf_r8;
register_t tf_r9;
register_t tf_rax;
register_t tf_rbx;
register_t tf_rbp;
register_t tf_r10;
register_t tf_r11;
register_t tf_r12;
register_t tf_r13;
register_t tf_r14;
register_t tf_r15;
register_t tf_trapno;
register_t tf_addr;
/* below portion defined in hardware */
register_t tf_err;
register_t tf_rip;
register_t tf_cs;
register_t tf_rflags;
register_t tf_rsp;
register_t tf_ss;
};
/* Interrupt stack frame */
struct intrframe {
register_t if_rdi;
register_t if_rsi;
register_t if_rdx;
register_t if_rcx;
register_t if_r8;
register_t if_r9;
register_t if_rax;
register_t if_rbx;
register_t if_rbp;
register_t if_r10;
register_t if_r11;
register_t if_r12;
register_t if_r13;
register_t if_r14;
register_t if_r15;
register_t :64; /* compat with trap frame - trapno */
register_t :64; /* compat with trap frame - addr */
register_t :64; /* compat with trap frame - err */
/* below portion defined in hardware */
register_t if_rip;
register_t if_cs;
register_t if_rflags;
register_t if_rsp;
register_t if_ss;
};
/* frame of clock (same as interrupt frame) */
struct clockframe {
register_t cf_rdi;
register_t cf_rsi;
register_t cf_rdx;
register_t cf_rcx;
register_t cf_r8;
register_t cf_r9;
register_t cf_rax;
register_t cf_rbx;
register_t cf_rbp;
register_t cf_r10;
register_t cf_r11;
register_t cf_r12;
register_t cf_r13;
register_t cf_r14;
register_t cf_r15;
register_t :64; /* compat with trap frame - trapno */
register_t :64; /* compat with trap frame - addr */
register_t :64; /* compat with trap frame - err */
/* below portion defined in hardware */
register_t cf_rip;
register_t cf_cs;
register_t cf_rflags;
register_t cf_rsp;
register_t cf_ss;
};
int kdb_trap(int, int, struct trapframe *);
#endif /* _MACHINE_FRAME_H_ */